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US-12616096-B2 - Whole-stalk or sectioning type combined sugarcane harvester

US12616096B2US 12616096 B2US12616096 B2US 12616096B2US-12616096-B2

Abstract

A whole-stalk or sectioning type combined sugarcane harvester, including: a frame, a sugarcane root grinding cutter ( 48 ), a plurality of rollers ( 59 ) for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using circular plates arranged at intervals, sugarcane pressing cover plates ( 82 ), sugarcane leaf and peel blocking barriers ( 75 ), a sugarcane stalk guide plate ( 78 ), rollover safety devices, anti-rollover regulators, and a whole-stalk sugarcane bundling and 180-degree left and right steering conveyor, wherein the sugarcane root grinding cutter ( 48 ) is mounted at a front end of the frame in a traveling direction; two rear sides of the frame are each provided with one rollover safety device, and the top of the frame is provided with the anti-rollover regulators; the rollers ( 59 ) are mounted on the frame; the sugarcane pressing cover plates ( 82 ) are mounted on the top surfaces of circular plates of the rollers ( 59 ), and the sugarcane leaf and peel blocking barriers ( 75 ) and the sugarcane stalk guide plate ( 78 ) are mounted behind the rollers ( 59 ); and the whole-stalk sugarcane bundling and 180-degree left and right steering conveyor is mounted at a rear end of the frame in the traveling direction.

Inventors

  • Yecai CHEN

Assignees

  • Yecai CHEN

Dates

Publication Date
20260505
Application Date
20220114
Priority Date
20210115

Claims (17)

  1. 1 . A whole-stalk or sectioning type combined sugarcane harvester, comprising: a frame, at least one sugarcane root grinding cutter, a plurality of rollers for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using circular plates arranged at intervals, a plurality of rows of rollers arranged at intervals for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks or two layers of rollers arranged vertically, at least one roller for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using continuous helical blades, a plurality of rows of rollers for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using rubber bars arranged at intervals or two layers of rollers arranged vertically, sugarcane pressing cover plates, sugarcane leaf and peel blocking barriers, a plurality of sugarcane stalk guide plates, two rollover safety devices, a plurality of anti-rollover regulators, and a whole-stalk sugarcane bundling and 180-degree left and right steering conveyor, wherein the frame is a whole base frame connected to bottom wheels of the whole-stalk or sectioning type combined sugarcane harvester for operating across a single sugarcane row or two sugarcane rows; the at least one sugarcane root grinding cutter is mounted at a front end of the frame in a traveling direction; two rear sides of the frame are each provided with a respective one of the two rollover safety devices, and a top of the frame is provided with the plurality of anti-rollover regulators; the plurality of rollers for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using the circular plates arranged at intervals, the plurality of rows of rollers arranged at intervals for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks or two layers of the rollers arranged vertically, the at least one roller for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using the continuous helical blades, and the plurality of rows of rollers for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using the rubber bars arranged at intervals or two layers of rollers arranged vertically for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using rubber bars arranged at intervals are mounted on the frame, and the sugarcane pressing cover plates are mounted on the plurality of rollers; the whole-stalk sugarcane bundling and 180-degree left and right steering conveyor is mounted at a rear end of the frame in the traveling direction; the sugarcane leaf and peel blocking barriers are mounted behind the plurality of rollers for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using the circular plates arranged at intervals, the plurality of rows of rollers arranged at intervals for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks or two layers of the rollers-arranged vertically, and the plurality of rows of rollers for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using the rubber bars arranged at intervals or two layers of rollers arranged vertically, respectively; the plurality of sugarcane stalk guide plates are mounted behind the sugarcane leaf and peel blocking barriers; the whole base frame comprises a front frame and a rear frame, wherein the front frame and the rear frame are connected through a bearing sleeve joint; the bearing sleeve joint comprises a transmission shaft, a sprocket wheel, a bearing and a bearing sleeve; two ends of the bearing sleeve are each provided with an outer sleeve; each outer sleeve is provided with a steel plate which is provided with a through hole, and the two steel plates are clamped at a front end of the rear frame and are fixedly connected by a bolt; a square steel is mounted on an outer side surface of the bearing sleeve, and is provided with a through hole, and the square steel and the rear end of the front frame are abutted and are fixedly connected by a bolt; and two sides of a rear end of the rear frame are each provided with one driving wheel, and two sides of a front end of the rear frame are each provided with one driving and steering wheel.
  2. 2 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein two sides of a front end of the front frame are provided with two liftable, walkable and steerable wheels; the each of the two liftable, walkable and steerable wheels comprises an upper walking wheel carrier and a lower walking wheel carrier; the each upper walking wheel carrier comprises a walking wheel lifting shaft sleeve, a walking wheel lifting oil cylinder and a walking wheel steering oil cylinder; an upper part and a lower part of a rear surface of the each upper walking wheel carrier are each provided with one vertical walking wheel steering sleeve shaft joint; respective sleeves at two ends of each vertical walking wheel steering sleeve shaft joint are welded to the corresponding upper walking wheel carrier, and square steel tubes bent at an angle of 90 degrees are each welded to middle portions of an upper one and a lower one of the vertical walking wheel steering sleeve shaft joints, and are fixed to two ends of the frame; the lower walking wheel carriers on two sides are provided with a respective one of the two liftable, walkable and steerable wheels and a wheel lifting shaft; two sides of a lifting wheel frame are each provided with a soft steel wire rope; the other ends of the soft steel wire ropes are connected to lifting ends of a pair of lifting oil cylinders, and bottom ends of the pair of lifting oil cylinders are arranged on two sides of a console frame; two sides of a front surface of the front frame are provided with vertical lifting oil cylinder bottom ends for supporting a sugarcane tail cutter; one end of each lifting oil cylinder is fixed to a bottom of a scissor blade rack of the sugarcane tail cutter by a bolt; a row of scissor blades is arranged at intervals at a front end of the scissor blade rack; rear ends of the row of scissor blades are arranged at intervals on a surface of a linear guide rail; clamping strips are arranged at intervals on an upper surface and a lower surface of the row of scissor blades; rear ends of the clamping strips are fixed to lower surfaces of the scissor blades; two ends of the linear guide rail are provided with sliding blocks; one end of the linear guide rail is provided with a hydraulic motor to drive a transmission shaft; the transmission shaft is provided with a sprocket wheel and an eccentric shaft wheel; the eccentric shaft wheel is connected to a reciprocating swinging bar; the swinging bar is connected to one end of the linear guide rail; a surface of the scissor blade rack is provided with tail leaf supporting plates arranged at intervals; two sides of each tail leaf supporting plate are provided with transmission shafts, one of which is driven by a hydraulic motor; the transmission shafts on the two sides are provided with sprocket wheels arranged at intervals, and a left and right steering conveying chain is provided with a tail leaf pulling bar; a tail leaf pulling blade rotator is arranged above a front of the row of scissor blades; the tail leaf pulling blade rotator is provided with a transmission shaft and a tail leaf pulling blade; one end of the transmission shaft of the tail leaf pulling blade rotator is provided with a sprocket wheel, and a transmission chain is connected to the hydraulic motor to drive the sprocket wheel of the transmission shaft; fallen tail leaf sliding plate grooves are arranged below the transmission shafts on the two sides of the scissor blade rack; a plurality of sleeve shaft joints are arranged at upper ends of the fallen tail leaf sliding plate grooves on the two sides, and are fixed to the frame below the transmission shafts on the two sides; back-fall tail leaf baffles are arranged at front ends of outlets of the fallen tail leaf sliding plate grooves on the two sides; and respective lifting ends of the pair of lifting oil cylinders are arranged on a bottom surface of each of the fallen tail leaf sliding plate grooves on the two sides.
  3. 3 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein the at least one sugarcane root grinding cutter comprises two sugarcane root grinding cutters that are arranged on two sides of a front of the front frame; each of the sugarcane root grinding cutters is a circular disc, an outer circumferential notch is formed on an outer circumference of the disc, and impurity removing seams arranged at intervals are formed along a circumferential surface of the outer circumferential notch of the disc; a top surface of the outer circumferential notch of the disc is a conical surface, and a bottom surface thereof is a flat surface; an area surface of the outer circumferential notch of the disc is coated with metal sand particles, the metal sand particles comprising alloy steel sand particles, emery particles, diamond sand particles or iron sand particles; the alloy steel sand particles are all higher than upper and lower corner edge surfaces of sagittate triangles of the notch of the disc; a transmission structure of the discs is that: transmission shafts are arranged on upper surfaces of central holes of the discs, bearings and bearing seats are arranged at upper and lower ends of each transmission shaft, respectively, the upper and lower bearing seats are both fixed to the frame by bolts, the discs are fixed to lower end tips of the transmission shafts through circular clamping plates, and V-belt pulleys are arranged at upper end tips of the transmission shafts, respectively; each V-belt pulley drives, by chains at one ends of the transmission shafts of a roller for scraping sugarcane leaves and peeling sugarcane peels at a sugarcane inlet, the transverse transmission shafts arranged above the chains, and then the V-belt pulley arranged on the transverse transmission shafts alternatively drive the discs to rotate left and right by V-type belts; or a transmission shaft, a bearing, a bearing seat, a bevel gear, a sprocket wheel, and a transverse raising plate for fixing the disc are arranged on a bottom surface of a central hole of the disc, a cover plate is arranged on a bottom surface of the transverse raising plate, and is fixed by a bolt, a transmission chain and a transmission shaft are arranged in the raising plate, bevel gears are arranged at two ends of the transmission shaft, two ends of the raising plate are fixed to the two sides of the frame by bolts; the disc is fixed to a surface of the raising plate at an upper end of the transmission shaft by the circular clamping plate, a vertical transmission shaft is arranged at one end of the raising plate, a bevel gear and a sprocket wheel are arranged at a lower end of the transmission shaft, a V-belt pulley is arranged at an upper end of the transmission shaft, and elastic rubber sheet baffle plates are arranged on two sides of a front end of the single disc; or vertical and transverse raising plates for fixing the disc are arranged on a bottom surface of the disc, cover plates are arranged on bottom surfaces of the vertical and transverse raising plates, respectively, and are fixed by bolts, a rear end tip of the vertical raising plate is welded to a middle of the transverse raising plate, a transmission shaft is arranged in each raising plate, and bevel gears are arranged at two ends of the transmission shaft; or a transmission shaft is arranged on an upper surface of a central hole of a single disc, and raising bars for fixing the transmission shaft are respectively arranged in a vertical direction of a rear surface of the disc at the lower end of the transmission shaft and in a horizontal direction below the rear surface of the disc; transmission shafts are arranged in the center holes of the discs; the upper ends of the transmission shafts are respectively provided with raising bars arranged at intervals for fixing the transmission shafts; the upper ends of the transmission shafts are respectively provided with bevel gears; each disc is provided with a transmission shaft; one end of the transmission shaft of the disc is provided with a bevel gear, and two outer sides thereof are provided with sprocket wheels; the two sides of the frame behind the sugarcane root grinding cutters are each provided with a single layer and a single row of continuously spaced rollers rotating clockwise for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using a plurality of circular plates arranged at intervals; each of the plurality of continuously spaced rollers rotating clockwise is provided with a transmission shaft, two ends of the transmission shaft are mounted on the frame by respective bearing seats, and one end of the transmission shaft is provided with a sprocket wheel and a transmission chain; two ends of a transmission shaft of a first roller at the sugarcane inlet are provided with sprocket wheels and transmission chains; bearing sleeve joints are arranged at two ends of a transmission shaft of the third roller; a plurality of circular plates is arranged at intervals on surfaces of the plurality of rollers for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using the circular plates arranged at intervals; vertical steel plates facing transversely are welded at intervals on two sides of each of the circular plates arranged at intervals on each of the rollers; a torsional spring is arranged outside a clamping plate to increase elasticity of a rubber sheet for a long time by a torsion arm; surfaces of the vertical steel plates facing transversely arranged at intervals on two sides of each of the circular plates arranged at intervals on the roller are provided with elastic rubber sheets ( 68 ), respectively; surfaces of the rollers are provided with elastic rubber sheets arranged at intervals, respectively, and surfaces scraping sugarcane stalks are provided with raised end objects, respectively; surfaces of two sides of each of the circular plates arranged at intervals on surfaces of the rollers are provided with elastic rubber sheets, respectively; one ends of the rubber sheets are fixed to surfaces of two sides of the circular plates arranged at intervals by bolts, respectively; vertical circular tubes are welded on surfaces of one ends of the circular plates for fixing the rubber sheets, respectively, so that outer ends of the rubber sheets are warped, and outer ends of two opposite rubber sheets cling together while inner ends thereof separate from each other; bearing seats at the two ends of each of a plurality of roller transmission shafts which are arranged in a single row or a double row in a single layer at intervals and disposed behind the sugarcane root grinding cutters are fixed to downward bottom surfaces of two sides of the frame by bolts; a plurality of circular saw blades capable of lifting vertically are arranged at intervals above a front of the first roller at the sugarcane inlet; vertical linear guide rails are arranged on two sides in front of the first roller, and sliding blocks are arranged on the linear guide rails on the two sides; the sliding blocks on the two sides are provided with transmission shafts of disc saw blades, and bearing seats are arranged at two ends of the transmission shaft; the transmission shaft of the disc saw blade is lifted by a lifting oil cylinder; and the transmission shaft is driven by a hydraulic motor.
  4. 4 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein the sugarcane leaf and peel blocking barriers are respectively arranged behind the plurality of rollers, the plurality of rows of rollers, and the plurality of rows of rollers; the sugarcane leaf and peel blocking barriers are mounted on a square steel, a row of run-through circular holes is formed at intervals in an upper surface and a lower surface of the square steel; each run-through circular hole formed in the upper surface and the lower surface is provided with an upper end head of a steel wire rope; a row of run-through holes butted to the upper and lower surfaces is formed at intervals in a side surface of the square steel; each butted run-through hole is fixed to one end of a steel wire rope by a bolt; two ends of the square steel are fixed to two sides of the frame by bolts; a respective one of the plurality of sugarcane stalk guide plates is arranged behind each of the sugarcane leaf and peel blocking barriers; each of the plurality of sugarcane stalk guide plates has a triangular shape with a narrow front and a wide back; the plurality of triangular sugarcane stalk guide plates is welded at intervals on a bottom surface of a rectangular steel plate; a narrow surface of each triangular sugarcane stalk guide plate is arranged in front of the harvester; a sugarcane leaf stop plate is arranged below each of the plurality of sugarcane stalk guide plates to prevent sugarcane leaves rotating by the plurality of rollers, the plurality of rows of rollers, or the plurality of rows of rollers from being conveyed backwards; and two ends of the rectangular steel plate of the sugarcane stalk guide plates are fixed to two sides of the frame by bolts.
  5. 5 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 3 , wherein a top surface of a respective one of the circular plates on each roller is provided with a sugarcane pressing cover plate; the sugarcane pressing cover plate is rectangular and semi-circular, and front and rear edges thereof are warped; two ends of the sugarcane pressing cover plate are fixed to two sides of the frame by bolts; two ends of each roller are provided with respective bearing sleeve joints, and sleeve shaft joints are arranged at the two ends behind the sugarcane pressing cover plate on the surface of the circular plate of the roller; two front ends of the sugarcane pressing cover plate are provided with tension spring bars and tension springs, and the two sides of the frame are provided with cover supporting bars for supporting and preventing the sugarcane pressing cover plate from covering downward, and top cover bars for supporting and upwards opening the sugarcane pressing cover plate.
  6. 6 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein lifting racks for the two left and right rollover safety devices are arranged below two sides of the harvester; sleeve shaft joints are arranged at inner ends of the lifting racks on the two sides; angle steels are arranged at outer ends of the lifting racks on the two sides; steel wire ropes are arranged at two opposite corners in the lifting racks on the two sides; each steel wire rope is provided with a movable joint at one end of the frame; one end of each angle steel is provided with a bolt to adjust the tightness; lifting oil cylinders are arranged such that one end of each lifting oil cylinder is arranged on the upper surface of a respective one of the lifting racks on the two sides, and a bottom end of each lifting oil cylinder is arranged on the frame above the two sides of the harvester; vertically-supported lifting oil cylinders for the plurality of anti-rollover regulators are arranged above the two sides of the harvester; respective one ends of the lifting oil cylinders on the two sides are arranged on a regulator moving rack; the moving rack is provided with a toothed bar; two sides of the toothed bar are provided with linear guide rails; sliding blocks are arranged at intervals on the linear guide rails on the two sides; a plurality of iron plates is fixed onto surfaces of the sliding blocks by bolts; a square notch is arranged in a middle of each of the plurality of iron plates, and a hydraulic motor is arranged in the square notch; gear teeth of the transmission shaft of the hydraulic motor roll on a surface of the toothed bar to drive the plurality of iron plates to move, and the hydraulic motor is fixed to the first iron plate on a surface of the sliding block by a bolt; the moving rack is arranged into three sections, namely, a middle section and one section on each of the two sides; hinge joints are arranged on the toothed bar at the middle section and at bottom surfaces of two ends of the linear guide rails to connect portions of the toothed bar on the two sides and the linear guide rails; a lifting end of each lifting oil cylinder is arranged on the bottom surface of the toothed bar on the two sides, and the bottom end of each lifting oil cylinder is arranged below the middle section; and respective ends of the linear guide rails on the two sides are provided with compression springs.
  7. 7 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein a portion of the frame under a tail part of the harvester is fixed by a bolt to a connector of the whole-stalk sugarcane bundling and 180-degree left and right steering conveyor; the connector is provided with a rectangular lower supporting plate; a triangular steel plate is provided on a surface of the lower supporting plate, and a pair of connector circular shafts are provided on both sides of the back of the triangular steel plate; a rectangular cover plate is arranged on a surface of the triangular steel plate; and a center of the front of the lower supporting plate, the triangular steel plate, and the rectangular cover plate is provided with a steering circular axis hole that is bolted with a round pin bolt, and an electromagnet is provided on the lower supporting plate behind the steering circular axis hole.
  8. 8 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein the whole-stalk sugarcane bundling and 180-degree left and right steering conveyor is provided with a bottom frame having bottom wheels walking across a single sugarcane row; circular holes are formed in the middle of front ends on both sides of the bottom frame, and a gap on the bottom surface of each of the circular holes is sealed by a steel plate and bolts; each of the circular holes is connected to a respective connector circular shaft provided at a connector of the whole-stalk sugarcane conveyor; walking wheels are provided on both sides of a rear part of the middle of the bottom frame; movable racks which are extendable backwards are provided on both sides of the rear end of the bottom frame, and the movable racks are fixed to respective linear guide rails by bolts; sugarcane baffles are provided above both sides of each movable rack; a touch electric switch is provided on one side of the front of the bottom frame; an electric remote-control lock is provided on the other side of the bottom frame; a steering disc of the bottom frame is provided with sleeve shaft joints on the left and right sides of a part at 400 mm in front of the center of the steering disc; the sleeve shaft joints are respectively connected to respective round steel bars, and the other ends of the round steel bars are respectively connected to first ends of soft steel wire ropes; the other ends of the soft steel wire ropes are respectively arranged on lifting ends of lifting oil cylinders, and bottom ends of the oil cylinders are respectively arranged on both sides of the frame above the tail part of the harvester; a 360-degree left and right rotating disc is provided at the rear part of the middle of the bottom frame, and an outer circumference of the rotating disc is fixed on the bottom frame; an upper end of an inner disc of the rotating disc is provided with a steering disc rack; an outer circumference of the steering disc in a bottom surface of the steering disc rack is provided with steering teeth; the steering teeth are engaged with gear teeth of a transmission shaft of a hydraulic motor to drive the steering disc to rotate; the hydraulic motor is provided on the bottom frame; a center of the steering disc is provided with a 360-degree left and right rotating hydraulic-electric transmission connector; steel plates are arranged at intervals on a surface of the steering disc rack; two vertical support bars are arranged in the middle of one outer side of the steering disc rack; sleeve shaft joints are provided at the upper and lower ends of the support bars; the sleeve shaft joint at the upper end of each support bar is arranged on an upper end of a balance bar; several iron plates are provided at a lower end of the balance bar; the upper and lower ends of each support bar are provided with lifting oil cylinders; one end of each lifting oil cylinder is respectively arranged on the lower end of the support bar and the upper end of the balance bar; the bottom end of each oil cylinder is arranged outside the upper and lower ends of the support bar; a transmission shaft is arranged on said one outer side of the steering disc rack; bearings, bearing seats, 14-tooth sprocket wheels, and conveying chains are arranged at intervals on the transmission shaft; each conveying chain is provided with sugarcane pulling bars at intervals; and the transmission shaft is driven by a hydraulic motor.
  9. 9 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 8 , wherein the other outer side of the steering disc rack is provided with upper and lower movable walls of the whole-stalk sugarcane bundling and 180-degree left and right steering conveyor; surfaces of the upper and lower movable walls are provided with steel meshes or steel plates at intervals; the upper and lower movable walls are provided with a plurality of upper and lower movable wall support square steel tubes arranged at intervals; an upper end of the upper movable wall support square steel tube and upper and lower ends of the lower movable wall support square steel tube are each provided with a transmission shaft; the transmission shaft at the upper end of the upper movable wall is provided with 14-tooth sprocket wheels and conveying chains at intervals; sugarcane supporting hooks are arranged at intervals on each conveying chain; the transmission shaft at the upper end of the lower movable wall is provided with 14-tooth sprocket wheels at intervals and sprocket wheels larger than the 14-tooth sprocket wheels at intervals; the transmission shaft at the lower end of the lower movable wall is provided with 14-tooth sprocket wheels and conveying chains at intervals; sugarcane supporting hooks are arranged at intervals on each conveying chain; the transmission shaft at the lower end of the lower movable wall is provided with a plurality of bearing sleeve joints at intervals; each of the bearing sleeve joints is provided with a transmission shaft, a bearing, and a bearing sleeve; two ends of the bearing sleeve are provided with outer sleeves; outer surfaces of the outer sleeves at two ends of the bearing sleeve are respectively connected to two steel plates, the steel plates are drilled on surfaces thereof and are fixed by bolts to the upper end of the lower movable wall support square steel tube and an end of a lower inner disc rack square steel tube, respectively; a middle surface of the bearing sleeve is welded with a square steel, the square steel is drilled and is fixed by bolts to the lower end of the upper movable wall support square steel tube and to a lower square steel tube of the lower movable wall support square steel tube, respectively; additional bearing sleeves are respectively arranged at the upper end of the upper movable wall support square steel tube; the 14-tooth sprocket wheels of the transmission shaft at said one outer side of the steering disc rack and the 14-tooth sprocket wheel of the transmission shaft at the lower end of the lower movable wall are connected by a conveying chain; the 14-tooth sprocket wheels of the transmission shafts at the upper and lower ends of the lower movable wall are connected by a conveying chain; the 14-tooth sprocket wheels of the transmission shaft at the upper end of the upper movable wall and the sprocket wheels larger than the 14-tooth sprocket wheels of the transmission shaft at the upper end of the lower movable wall are connected by a conveying chain; the conveying chains of the upper and lower movable walls and a drum in the conveying chain of the steering disc rack are all higher than bottom surfaces of chain pieces on both sides; the conveying chains, the sugarcane supporting hooks, and the sugarcane pulling bars are respectively provided with a bottom supporting sliding plate; the lower end of the upper movable wall and the lower end of the lower movable wall are respectively provided at both sides with lifting ends of lifting oil cylinders at intervals; and the bottom ends of the lifting oil cylinders are arranged outside the upper end of the lower movable wall and the bottom of the lower movable wall.
  10. 10 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 9 , wherein vertical inner and outer frames of a whole-stalk sugarcane bundling machine, including an outer frame, are provided on a surface of the steering disc rack, and the inner and outer frames on one side are connected to the steering disc rack on a lower side; the inner and outer frames on one side of the upper and lower movable walls are elevated until the lower end of a bottom supporting plate bracket of the bundling machine is overhead; two opposite inclined sugarcane supporting sliding plates are arranged on both inner sides of an upper part of the outer frame; sleeve shaft joints are respectively arranged at both ends of the outer frame inside the sugarcane supporting sliding plates; steel plates for adjusting the inclination of the sugarcane supporting sliding plates are respectively arranged at both ends of the outer frame outside the sugarcane supporting sliding plates; a steel plate seam is provided in the middle of the steel plate which is fixed to the outer frame by bolts through the steel plate seam; four high-temperature-resistant and non-toxic plastic sheet reels are provided respectively at intervals on two outer sides of the sugarcane supporting sliding plates; sugarcane supporting plates are arranged on both sides of the bottom surface of the sugarcane supporting sliding plates; linear guide rails are arranged at intervals on the sugarcane supporting plates on both sides; the linear guide rails are provided with sliding blocks at intervals, and the bottom surfaces of the sliding blocks are respectively fixed on a surface of a rectangular steel plate; an outer end of the steel plate is respectively provided with sleeve shaft joints which are fixed on the outer frame; a bottom surface of an inner end of the steel plate is respectively provided with top supporting bars; a groove is formed in an inner end of one of the sugarcane supporting plates on one side; a protruding serrated blade is provided at the middle of an inner end of the other one of the sugarcane supporting plates on the other side; hanging and supporting bars are provided at both inner ends of the sugarcane supporting plates on both sides; a weighing sensor is arranged on the middle of a bottom surface of one of the sugarcane supporting plates; two proximity sensors are respectively arranged at intervals on bottom surfaces of one ends of the sugarcane supporting plates on both sides; lifting oil cylinders are provided on bottom surfaces of both ends of the sugarcane supporting plates on both sides; one end of each lifting oil cylinder is arranged on an inner side of a respective sugarcane supporting plate, and the bottom end of each oil cylinder is arranged on the outer frame; compression plastic frames are arranged on both sides of the bottom surface of the sugarcane supporting plates; two proximity sensors are respectively arranged at intervals on the bottom surface of one ends of the compression plastic frames on both sides; linear guide rails are provided at intervals on the compression plastic frames on both sides; inner ends of the linear guide rails on both sides are respectively provided with compression plastic sheet assemblies; each compression plastic sheet assembly is provided with a hollow pressing plate, an electric heating tube, a temperature sensor, a compression spring, and bolts; grooves are formed in a surface of the hollow pressing plate of the compression plastic sheet assemblies on both sides; a serrated blade is provided in the middle of the groove in the surface of the hollow pressing plate of one of the assemblies on one side; the linear guide rails on both sides are provided with sliding blocks at intervals, and bottom surfaces of the sliding blocks are fixed on the outer frame; lifting oil cylinders are arranged in the middle of bottom surfaces of the compression plastic frames on both sides; one end of each lifting oil cylinder is provided on an inner side of the respective compression plastic frame, and the bottom end of the oil cylinder is provided on the outer frame; sugarcane pressing frames are arranged on both sides of the bottom of the compression plastic frames; two proximity sensors are respectively arranged on bottom surfaces of one ends of the sugarcane pressing frames on both sides; the sugarcane pressing frames on both sides are provided with linear guide rails at intervals; a Y-shaped fork is arranged at an inner end of each linear guide rail; lifting oil cylinders are arranged in the middle of bottom surfaces of the sugarcane pressing frame frames on both sides; one end of each lifting oil cylinder is provided on an inner side of the sugarcane pressing frame, and the bottom end of the oil cylinder is provided on the outer frame; bottom supporting plates are provided on both sides of the bottom of the sugarcane pressing frame; two proximity sensors are respectively arranged on bottom surfaces of one ends of the bottom supporting plates on both sides; the bottom supporting plates on both sides are provided with linear guide rails at intervals; lifting oil cylinders are arranged in the middle of bottom surfaces of the bottom supporting plates on both sides; one end of each lifting oil cylinder is provided on an inner side of the bottom supporting plate, and the bottom end of the oil cylinder is provided on the outer frame; sugarcane stalks slide from the two opposite inclined sugarcane supporting sliding plates arranged above the whole-stalk sugarcane bundling machine to the lower sugarcane supporting plates on both sides; the weighing sensor arranged on said one of the sugarcane supporting plates weighs the sugarcane stalks until a specified weight is reached; the sugarcane supporting plates on both sides are opened so that the sugarcane stalks fall to the bottom supporting plates while the sugarcane supporting plates are closed; plastic sheets in the plastic sheet reels on both sides of the sugarcane supporting sliding plates have been connected to the sugarcane supporting plates in advance and are pressed by the falling sugarcane stalks onto a surface and both sides of the bottom supporting plates; the Y-shaped fork of the sugarcane pressing frames on both sides is closed to press the sugarcane stalks into a circle bundle; the compression plastic sheet assemblies-provided on the compression plastic frames on both sides are closed, so that the plastic sheets on both sides are held together and adhered to form an adhered part with a height of 20 mm, and the serrated blade in the groove divides the adhered part in the middle, then the compression plastic frames are opened while the sugarcane pressing frames are opened, and the bottom supporting plates are opened and then closed; such bundled sugarcane stalks fall to the surface of the steering disc rack and are transported to the lower end of the upper and lower movable walls by the conveying chains on the surface of the steering disc rack; and the bundled sugarcane stalks are then transported by conveying chains of the upper and lower movable walls to a carriage of a sugarcane transporting truck parallel to a side of the harvester.
  11. 11 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein the harvester further comprises an automatic control unit, the automatic control unit being a closed-loop control system comprising a power supply part, a control part, a signal acquisition part, a signal processing part and a drive part, and wherein a programmable logic controller (PLC) with control buttons and a touch screen is used to perform electric oil automation control on functions of each of the power supply part, the control part, the signal acquisition part, the signal processing part and the drive part, wherein the power supply part is composed of an on-board battery, an inverter, a switch and a transformer; the control part comprises an on-board control device controlled through control buttons and touch screen operation; the signal acquisition part performs collection by different types of photoelectric sensors, proximity sensors, position-limiting sensors, temperature sensors, weighing sensors and AC conversion; the signal processing part processes signals collected by respective sensors by the PLC using centralized processing; and the drive part controls the PLC and drives relay solenoid valves and oil cylinder solenoid valves.
  12. 12 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein bottom ends of a plurality of vertical support bars are arranged on both sides of the frame in front of at least one of the sugarcane root grinding cutters; planar bars are arranged on both sides in front of respective upper ends of the vertical support bars; a plurality of sugarcane supporting bars are mounted to the planar bars on both sides at intervals that are wide in a front and narrow in a rear; a torsional spring is provided at a respective inner end of each sugarcane supporting bar; an outer end of each sugarcane supporting bar is provided with a sleeve shaft joint; the each sugarcane supporting bar is reset by a torsion arm of the torsional spring; a sugarcane pulling bar is arranged at an upper end of a transmission shaft at a center hole of a disc of each sugarcane root grinding cutter; a bottom of each disc is provided with bevel gears, and raising plates are fixed on left and right sides of the bottom of each disc; a sugarcane stalk conveyor for hooking upward is arranged behind the sugarcane root grinding cutters; a front transmission shaft is arranged in front of the sugarcane root grinding cutters; bearings, bearing seats, sprocket wheels, and conveying chains are arranged at both ends of the front transmission shaft; upper and lower surfaces on both sides of each conveying chain are provided with double-sided bending plates at intervals; square steel tubes are arranged at intervals on surfaces of the conveying chains on both sides; two ends of the each square steel tube are bolted to the double-sided bending plates on the surface of a respective conveying chain; a surface of one square steel tube of every several square steel tubes is provided with several sets of spaced steel nails; each steel nail is fixed on the surface of the corresponding square steel tube by welding; in a space between the square steel tubes, sugarcane supporting plates are provided on bottom surfaces of the conveying chains on both sides from above to below the square steel tubes and are fixed on surfaces of the double-sided bending plates with bolts; a rear transmission shaft is arranged at the back; both ends of the rear transmission shaft are provided with bearing sleeve joints; bearing seats arranged on both sides of the front transmission shaft are fixed on both sides of the frame; the two sides of the frame behind the sugarcane stalk conveyor for hooking upward are each provided with a single layer and a single row of continuously spaced rollers in rows at intervals rotating clockwise for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks; the first roller at the sugarcane inlet rotates counterclockwise; sprocket wheels and transmission chains are provided at both ends of a transmission shaft of a second roller at the sugarcane inlet; two ends of each of the rollers arranged in rows at intervals for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks are provided with end circular blocking plates; vertical steel plates facing transversely and spaced apart are arranged at intervals on a surface of each roller; the bottom ends of the vertical steel plates facing transversely and spaced apart and arranged on the surface of each roller at intervals are fixed on the surface of the respective roller by welding; elastic rubber sheets are respectively provided on a surface and two sides of the vertical steel plates facing transversely and arranged on each roller at intervals, or one ends of elastic rubber sheets are respectively provided at two sides of a surface of vertical steel plates arranged longitudinally on each roller at intervals; the middle of each rubber sheet is fixed on the surface of the vertical steel plates facing transversely and arranged on each roller at intervals through clamping plates and bolts; vertical steel plates that are longitudinally spaced apart are further arranged at intervals on a surface of each roller; vertical circular tubes are respectively welded on two sides of the surface of vertical steel plates arranged longitudinally on each roller at intervals, so that outer ends of the fixed rubber sheets are warped, and outer ends of two opposite rubber sheets cling together while inner ends thereof separate from each other; the bottom ends of the vertical steel plates arranged longitudinally are fixed on the surface of each roller by welding; an upper end of the vertical steel plate arranged at intervals on the surface of a first roller at the sugarcane inlet is provided with a circular plate ring; the circular plate ring is fixed on the upper end of the vertical steel plate by bolts; a sprocket wheel shaft and a sprocket wheel that are driven by a sprocket wheel rotating clockwise of the second roller at the sugarcane inlet to rotate the first roller at the sugarcane inlet counterclockwise are provided on a front side of the first roller at the sugarcane inlet; bottom supporting plates are provided on a bottom surface of the roller first roller that rotates counterclockwise at the sugarcane inlet; sugarcane blocking plates extendable backwards are further arranged at rear ends of both sides of the sugarcane supporting sliding plates on the two opposite inclined surfaces of the whole-stalk sugarcane bundling and 180-degree left and right steering conveyor; linear guide rails of the sugarcane blocking plates extendable backwards are fixed on the frame by bolts; a rectangular bottom frame is further arranged on two outer sides of bottom surfaces of the bottom supporting plates on both sides of the whole-stalk sugarcane bundling and 180-degree left and right steering conveyor; walking wheels are arranged on both sides of a rear end of the bottom frame; soft steel wire ropes are respectively arranged at first ends thereof on both sides of a rear end of a top surface of the whole-stalk sugarcane bundling and 180-degree left and right steering conveyor; the other ends of the soft steel wire ropes are connected to lifting ends of lifting oil cylinders, and bottom ends of the oil cylinders are respectively arranged on both sides of the frame above the tail part of the harvester; the two sides of the frame behind the sugarcane root grinding cutters are each provided with a double layer, a single row and upper and lower layers of continuously spaced rollers in rows at interval in each layer for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks, and two ends of the transmission shaft of each roller are respectively provided with bearings and bearing seats; top ends of the rubber sheets for scraping sugarcane leaves and peeling sugarcane peels arranged in rows at intervals on surfaces of the continuously spaced upper and lower rollers are closely inserted into a surface of an opposite roller at intervals; gears are respectively provided at one ends of the two layers of rollers, and the gears of the lower layer of rollers-rotate clockwise to drive the gears of the upper layer of rollers to rotate counterclockwise; in the two layers of rollers, one ends of the lower layer of rollers are respectively provided with sprocket wheels and transmission chains; in the two layers of rollers, both ends of a transmission shaft of the third roller in the lower layer of rollers are provided with bearing sleeve joints; upper and lower sides of the front of rollers at the sugarcane inlet in the upper and lower layers of rollers are respectively provided with a horizontal bar parallel to the roller; and semicircle curved vertical bars away from ends of the vertical steel plates facing transversely arranged at intervals on surfaces of the rollers are provided below a surface of the upper horizontal bar and above a surface of the lower horizontal bar respectively.
  13. 13 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein a sugarcane sectioning blade device is provided at the sugarcane outlet at the tail part of the harvester, and the blade device comprises an outer blade holder and an inner blade holder; two fixed blades are arranged respectively at intervals up and down of blade holder bottom ends on both sides of the rear of the outer blade holder, and edges of the two blades are opposite to each other; upper and lower sugarcane supporting plates are arranged behind the edges of the upper and lower blades; compression springs are respectively arranged at intervals on a surface of the upper sugarcane supporting plate and both sides of a bottom surface of the lower sugarcane supporting plate; a top end of the outer blade holder is provided with a bottom end of a lifting oil cylinder; one end of the lifting oil cylinder is arranged at a top end of the inner blade holder; proximity sensors are respectively arranged at the middle and lower end of one side of the outer blade holder; sliding blocks are respectively provided at the middle and lower ends of two sides of the outer blade holder; linear guide rails for the inner blade holder are provided on both sides of the inner blade holder, and the linear guide rails on both sides of the inner blade holder are inserted into the sliding blocks on both sides of the outer blade holder; a sugarcane sectioning blade with two blade edges is arranged at the lower end of the linear guide rails on both sides of the inner blade holder; two ends of the sugarcane sectioning blade are fixed on the linear guide rails on both sides by bolts; bearing shafts, bearings, bearing moving grooves and a torsional spring are provided on both sides of the bottom end of the outer blade holder; the bearing moving grooves on both sides are fixed on both sides of the frame at the sugarcane outlet of the tail part of the harvester by bolts; the inner blade holder of the sectioning blade device is optionally provided as double inner blade holders; both the double inner blade holders are provided with a sugarcane sectioning blade with two blade edges; both top ends of the double inner blade holders are provided with lifting ends of lifting oil cylinders; the lifting oil cylinder provided in the inner blade holder of the sectioning blade device is controlled by an automatic control unit to go up and down once to cut sugarcane stalks into sections; vertical baffle plates are further arranged at a rear end edge and a right edge on a surface of a disc rack of a sugarcane sections and transverse sugarcane stalks 180-degree left and right steering conveyor and at two side edges of the upper and lower movable walls; the upper and lower movable walls and surfaces of the disc rack on both sides are provided with conveying chains at intervals; lifting ends of the lifting oil cylinders are respectively provided on two sides in front of walking wheels of the bottom frame; bottom ends of the oil cylinders are respectively arranged under the tail part of the harvester; and bolts are further used to fix both sides of the front end of the bottom frame of the sugarcane sections and transverse sugarcane stalks 180-degree left and right steering conveyor.
  14. 14 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein a disc rack of a sugarcane sections and transverse sugarcane stalks 180-degree left and right steering conveyor is provided at a tail part of the harvester, and sleeve shaft joints are arranged at rear ends of both sides of the disc rack; a sugarcane supporting sliding plate is provided behind a front disc mounted on the disc rack and extends to the sugarcane outlet at the tail part of the harvester; a sugarcane supporting sliding plate groove is provided from the sugarcane outlet to two sides of a surface of the sugarcane supporting sliding plate; two rows of vertical sugarcane stalk conveying ledges are arranged at intervals above and behind the front disc; a space between the two rows of ledges is configured as a channel for conveying sugarcane stalks with a wide front inlet and a narrow rear; surfaces of the two rows of ledges are provided with steel meshes or steel plates at intervals; front ends of the two rows of ledges are provided with sprocket wheel shafts and sprocket wheels; bearings are arranged in the sprocket wheels; vertical transmission shafts are arranged on two sides of middle sections of the two rows of ledges; bearings, bearing seats, sprocket wheels, and conveying chains are arranged at intervals above and below the transmission shafts; sugarcane pulling bars are arranged on each conveying chain; pressing sprocket wheels are arranged inside a middle section of each conveying chain; lower ends of the transmission shafts on two sides of the middle sections of the two rows of ledges are provided with sprocket wheel shafts, sprocket wheels, and transmission chains for driving, by one transmission shaft, the other transmission shaft to rotate in an opposite direction; sprocket wheels are respectively arranged at lower ends of vertical transmission shafts on both sides of the middle section; a ball cage is arranged in each sprocket wheel for connecting independent sugarcane conveying chain discs on two sides above the front disc; a front end of each chain disc is provided with a sprocket wheel, an inner side of the middle of each chain disc is provided with a pressing sprocket wheel and a conveying chain, and each conveying chain is provided with sugarcane pulling bars; sliding plate grooves for fixing the respective chain discs are arranged on both sides of the front of the disc rack; a middle section of the sugarcane stalk conveying channel of the two rows of ledges is provided with space where sugarcane stalks are conveyed without any conveying chain; a sugarcane stalk moves only when being pressed by sugarcane stalks moved by a front conveying chain; a front vertical transmission shaft and a rear vertical sprocket wheel shaft are arranged at intervals behind the two rows of ledges; the front vertical transmission shaft is provided with bearings, bearing seats, sprocket wheels, transmission chains, and conveying chains at intervals above and below a middle section thereof, the conveying chains are provided with sugarcane pulling bars at intervals, and the bearing seats are fixed on the frame; the rear sprocket wheel shaft is provided with sprocket wheels at intervals up and down, and the sprocket wheels are provided with bearings; the rear sprocket wheel shaft is fixed on the frame with bolts; the front vertical transmission shaft drives a transmission shaft in the middle section through the transmission chain and drives sprocket wheels spaced apart on the rear sprocket wheel shaft through a conveying chain, so as to make the transmission shaft in the middle section and the front vertical transmission shaft and the rear sprocket wheel shaft rotate synchronously; once the sugarcane pulling bars provided at intervals on each conveying chain, which conveying chain is used by the front vertical transmission shaft to drive the rear sprocket wheel shaft, rotate for one turn on one of the rollers for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using continuous helical blades, the sugarcane pulling bars provided at intervals on the conveying chains move an interval of sugarcane pulling bar into an inlet of the helical blades of said one roller.
  15. 15 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 14 , wherein the at least one roller comprises a plurality of rollers overlapping at intervals and synchronously rotating for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using the continuous helical blades are provided behind the rear sprocket wheel shaft; two ends of respective transmission shafts of the plurality of rollers for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using the continuous helical blades are each provided with bearings and bearing seats, and bevel gears are arranged at rear ends of the transmission shafts; bevel gears are arranged at front ends of the transmission shafts of upper and lower ones of the plurality of rollers; the bevel gears arranged at front ends of the transmission shafts of the upper and lower ones of the plurality of rollers are respectively connected to bevel gears and sprocket wheels provided in respective upper and lower front transmission shafts; vertical steel plates facing transversely are respectively welded at intervals on surfaces of the continuous helical blades on two opposite sides of each of the plurality of rollers.
  16. 16 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 15 , wherein surfaces of the vertical steel plates facing transversely arranged at intervals on the continuous helical blades of two opposite surfaces of the rollers are respectively provided with elastic rubber sheets; elastic rubber sheets are further arranged respectively at intervals on surfaces of the continuous helical blades of two opposite surfaces of the rollers; respective first ends of the elastic rubber sheets are fixed on surfaces of two opposite continuous helical blades by bolts; vertical circular tubes are respectively welded to respective surfaces of the continuous helical blades on which one end of the rubber sheet is fixed; a serrated edge is provided at a front end of the sugarcane stalk inlet of the continuous helical blades of the roller; sugarcane pressing cover plates are respectively provided on one side surface of the rollers for scraping the sugarcane leaves, peeling the sugarcane peels and conveying the sugarcane stalks by using the continuous helical blades; two ends and two sides of each sugarcane pressing cover plate are fixed on the frame by bolts; a vertical transmission shaft is arranged behind the plurality of rollers with continuous helical blades; a bevel gear, a bearing, and a bearing seat are arranged at intervals at upper and lower ends of the transmission shaft; sprocket wheels and transmission chains are provided at the upper and lower ends of the vertical transmission shaft, and the transmission chain of the sprocket wheel at the lower end is driven by a hydraulic motor; sugarcane sliding bars are respectively arranged on both sides of rear upper ends of the plurality of rollers; upper ends of the sugarcane sliding bars are respectively provided with sleeve shaft joints; linear guide rails are provided on the frame behind the plurality of rollers, upper ends of the linear guide rails are respectively provided with lifting ends of lifting oil cylinders, and lower ends of the oil cylinders are provided on the frame; the plurality of rollers comprises seven rollers that overlap and rotate counterclockwise synchronously, or bevel gears on the transmission shafts are mounted in an opposite direction such that a rotation direction of the continuous helical blades of the rollers is changed to realize clockwise rotation of the seven rollers; the harvester further comprises upper and lower movable walls of a conveyor, wherein one end of a square steel is welded on a surface in the middle of a bearing sleeve of each of the upper and lower movable walls, a rectangular hole is formed at another end of each square steel in which a compression spring is inserted, and each square steel is fixed by bolts to a lower end of a supporting square steel tube of the upper movable wall and into a square steel tube at a lower end of a supporting square steel tube of the lower movable wall; rolling wheels for supporting chain ears or supporting drums are respectively arranged behind respective 14-tooth sprocket wheels at upper ends of the supporting square steel tubes of the lower movable wall, each rolling wheel is provided with two bearings, and a seam for passing a sugarcane supporting hook of a conveying chain is provided in the middle of each rolling wheel; sprocket wheels for positioning conveying chains are respectively arranged above double-sided bending plates or drums and rolling wheels for supporting the conveying chains on top surfaces of bearings on both sides; and 14-tooth sprocket wheels of transmission shafts at upper and lower ends of the lower movable wall and 14-tooth sprocket wheels of a transmission shaft at an upper end of the upper movable wall are connected and driven by a conveying chain.
  17. 17 . The whole-stalk or sectioning type combined sugarcane harvester according to claim 1 , wherein the whole-stalk type combined sugarcane harvester for harvesting in two rows simultaneously is provided with the base frame connected to bottom wheels for operating across two sugarcane rows, and a sugarcane tail cutter having a width for cutting across two sugarcane rows; the two sides of the frame behind a plurality of sugarcane root grinding cutters are each provided with two rows and a single layer of continuously spaced rollers rotating clockwise for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using a plurality of rows of rubber bars arranged at intervals; one end of a transmission shaft of each of the continuously spaced rollers is provided with a sprocket wheel and a transmission chain, and a bearing and a bearing seat are provided on the transmission shaft at two ends thereof; two ends of the transmission shaft of a third roller in the continuously spaced rollers are respectively provided with bearing sleeve joints; two ends of each of the continuously spaced rollers are provided with end circular blocking plates; vertical steel plates facing transversely are arranged at intervals on surfaces of the continuously spaced rollers; surfaces of the vertical steel plates facing transversely and arranged at intervals on the surfaces of the continuously spaced rollers are respectively drilled at intervals; bottom ends of a plurality of vertical elastic rubber bars are respectively fixed at intervals on surfaces of the vertical steel plates facing transversely by drilling and by bolts; surfaces of the continuously spaced rollers are provided with the vertical elastic rubber bars arranged at intervals, respectively, and surfaces scraping two sides of sugarcane stalks are provided with raised end objects, respectively; the two sides of the frame behind two rows of left and right sugarcane root grinding cutters are each provided with two rows and upper and lower layers of continuously spaced rollers, each layer having several rollers, for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using a plurality of rows of rubber bars arranged at intervals; top ends of the plurality of rows of rubber bars arranged at intervals of the two rows and upper and lower layers of continuously spaced rollers are closely inserted at intervals into upper ends of the vertical steel plates facing transversely on a surface of an opposite roller; a scattered whole-stalk sugarcane 180-degree left and right steering conveyor comprises a steering disc rack having bottom wheels for walking across two sugarcane rows, a surface of the steering disc rack is provided with two opposite inclined sugarcane supporting sliding plates having a width adapted to sugarcane stalks discharged from two rows of sugarcane outlets at the tail part of the harvester; the whole-stalk type combined sugarcane harvester for harvesting in two rows simultaneously provided with the base frame connected to bottom wheels for operating across two sugarcane rows is further provided with a base frame configured for harvesting in four rows simultaneously; two sides of a front end of the front frame are provided with liftable, walkable and steerable wheels and liftable and walkable wheels, such that the liftable and walkable wheels are arranged at an interval of two sugarcane rows on one side and the liftable, walkable and steerable wheels are arranged at an interval of one sugarcane row on the other side; the two sides of the frame behind four rows of the sugarcane root grinding cutters are each provided with four rows and a single layer of continuously spaced rollers-rotating clockwise for scraping sugarcane leaves, peeling sugarcane peels and conveying sugarcane stalks by using a plurality of rubber bars arranged rows of at intervals; the scattered whole-stalk sugarcane left and right conveyor comprises a bottom frame having bottom wheels for walking across two sugarcane rows, and a surface of the bottom frame is further provided with vertical bars for supporting a left and right conveying frame; the vertical bars are arranged at intervals on both sides of the rear end of the bottom frame, and the fronts of upper ends of the vertical bars are respectively connected to two opposite inclined sugarcane supporting sliding plates which abut two sugarcane outlets at the tail part of the harvester; upper ends of the vertical bars on both sides are respectively connected to one ends of soft steel wire ropes; the other ends of the steel wire ropes are respectively arranged on lifting ends of lifting oil cylinders; bottom ends of the oil cylinders are respectively arranged on both sides of the frame above the tail part of the harvester; two sides of the left and right conveying frame are provided with left and right upper and lower movable walls; ordinary bicycle single-speed flywheels are further provided respectively in sprocket wheels arranged on transmission shafts at lower ends of conveying chains of the lower movable walls on both sides; when the transmission shafts, provided with the ordinary bicycle single-speed flywheels, at lower ends of the lower movable walls on both sides rotate clockwise, an inner flywheel provided on a transmission shaft at the lower end of the right lower movable wall drives an outer chain gear to rotate, and an inner flywheel provided on a transmission shaft at the lower end of the left lower movable wall stops driving the outer chain gear to rotate; when the transmission shafts on both sides rotate counterclockwise, the inner flywheel on the right side stops driving the outer chain gear to rotate, and the inner flywheel on the left side drives the outer chain gear to rotate; sugarcane sectioning blade devices are respectively arranged at four rows of sugarcane outlets of the tail part of the harvester; conveying chains are respectively arranged at intervals on surfaces of the left and right upper and lower movable walls and a surface of the left and right conveying frame; two side edges of the surfaces of the upper and lower movable walls on the left and right sides and rear end edges on the surface of the left and right conveying frame are respectively provided with vertical baffle plates; and a front end of the bottom frame of horizontal sugarcane sections conveyors on the upper and lower movable walls on the left and right sides is fixed by bolts to the frame below the sugarcane outlet at the tail part of the harvester.

Description

TECHNICAL FIELD The present invention relates to the field of harvesting machinery for agricultural production, and more particularly, to a whole-stalk or sectioning type combined sugarcane harvester. BACKGROUND ART Operation of an existing combined sugarcane harvester has brought certain economical effects, but most of related operating technologies still have many defectives and deficiencies and cause the occurrence of the following main unfavorable factors. 1. A bottom end of a support frame of a sugarcane tail cutter is arranged on the front of a bridge console, and the warping of the harvester in walking causes an upper end of an inclined plane support frame of the sugarcane tail cutter to rise and fall substantially, so that a sugarcane tail cutting positioning height goes up and down by a large deviation, and the cut sugarcane tail cannot be accurately positioned on a sugarcane row surface. 2. Heads of sugarcane roots have a great tendency to break when the sugarcane roots are cut off. An existing sugarcane root cutter is provided with a plurality of sharp blades for cutting sugarcane roots, while the soil on a sugarcane root surface of a sugarcane row in a sugarcane field is uneven and further contains a lot of coarse sand and stones, so it is common for the blades to cut sugarcane roots 40 mm above the ground and 70 mm below the ground in the field. Once the harvester walks for cutting sugarcane roots while cutting in uneven mud, sand and stones on the sugarcane root surface for 30 meters or less, even the sharp blade may immediately become a blunt blade or a notched blade. Therefore, it is inevitable that heads of many sugarcane roots would be broken if the blunt blade or notched blade is continuously used to cut the sugarcane roots, and at the same time the broken heads may cause substantial yield reduction in a regrowth year of the sugarcane roots. The sharp blade of the existing harvester cannot be implemented as a machete that can be kept sharp for a long time and does not become blunt in cutting the soil containing a lot of coarse sand and stones around the sugarcane roots, while the broken or split heads of cut sugarcane roots are caused by the blunt blade. 3. After the sugarcane roots are cut off, the impurities such as mud, sand and stones are mixed in sugarcane stalks and discharged by the inertia in conveying the sugarcane stalks, and are discharged to a sugarcane outlet at a tail part of the harvester, where the sugarcane stalks are cut into sections with a length of about 130 mm by a sectioning cutter provided at the tail part of the harvester. Since the sectioning cutter may normally cut the sugarcane mixed with mud lumps, sand and stones, its sharp sectioning rolling blade may become a blunt and/or notched blade within a short time. In this case, the sugarcane is cut off by squeezing, and sucrose water inside will be directly lost due to crushing at ends formed by such cutting. The mud lumps and stones with a diameter of larger than 20 mm may not be sucked by a suction fan above the tail part of the harvester due to their heavy weights and will fall into a sugarcane collecting bucket and be discharged into a carriage of a sugarcane transport truck together with sugarcane sections. Impurities removing seams of the sugarcane collecting bucket should not be greater than 20 mm, since if they are too large, many sugarcane stalks with a diameter of less than 20 mm will fall down to the sugarcane field, resulting in a waste. The scraped sugarcane leaves, the peeled sugarcane peels, mud, sand and other impurities are discharged to the sugarcane outlet at the tail part of the harvester, and a strong wind suction fan is provided above the sugarcane outlet to suck the sugarcane leaves, sugarcane peels, powder of mud and sand, and other impurities and discharge them into the sugarcane field by spraying them out of a port of the suction fan, which causes air pollution due to the sugarcane leaves, the powder of mud and sand, and other impurities flying everywhere. 4. The technology of a whole-stalk type harvester for scraping sugarcane leaves and peeling sugarcane peels is immature, such that operations of scraping sugarcane leaves and peeling sugarcane peels cannot be performed cleanly. The operation of stacking sugarcanes in the sugarcane field and the operation of transporting sugarcane stalks to the carriage of the sugarcane transport truck cannot be performed at the same time, resulting in low working efficiency due to the secondary operation. 5. Sugarcane harvesters are prone to rollover when operating in a sugarcane field on a common slope, and are completely not able to operate in a sugarcane field on a higher slope. SUMMARY OF THE INVENTION Technical Problem The present invention will solve the defects and deficiencies in the majority of operating techniques of existing combined sugarcane harvesters, and provide a plurality of whole-stalk or sectioning type combined sugarcane harvesters.