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CN-117242981-B - Reed crop harvesting, clamping and longitudinal conveying device and harvester

CN117242981BCN 117242981 BCN117242981 BCN 117242981BCN-117242981-B

Abstract

The invention provides a reed crop harvesting, clamping and longitudinal conveying device and a harvester, which comprise a lower-layer clamping and conveying mechanism, an upper-layer clamping and conveying mechanism and a supporting bench, wherein the lower-layer clamping and conveying mechanism is used for clamping the center of high-pole crops such as reeds and conveying the high-pole crops to the rear of the device, the upper-layer clamping and conveying mechanism is arranged on the supporting bench, the upper-layer clamping and conveying mechanism and the supporting bench are both arranged on the outer side of the lower-layer clamping and conveying mechanism, the height of the upper-layer clamping and conveying mechanism is larger than that of the lower-layer clamping and conveying mechanism, and the upper-layer clamping and conveying mechanism is used for clamping the tops of the high-pole crops such as reeds and conveying the high-pole crops to the rear of the device. The invention adopts the upper and lower clamping and conveying mechanisms, so that the device can vertically, neatly, non-falling and stably clamp and convey high-stalk crops such as reed and the like from the front to the rear of the device. The height of the upper clamping and conveying mechanism is changed by adopting the lifting hydraulic cylinder of the upper longitudinal conveying mechanism, reed with different heights can be harvested, and the applicability is strong.

Inventors

  • LI YAOMING
  • Ji Kuizhou
  • JI BINBIN
  • DU TUO
  • LIU YANBIN
  • LIANG ZHENWEI

Assignees

  • 江苏大学

Dates

Publication Date
20260512
Application Date
20231101

Claims (8)

  1. 1. The reed crop harvesting, clamping and longitudinal conveying device is characterized by comprising a lower-layer clamping and conveying mechanism (101-7), an upper-layer clamping and conveying mechanism (101-8) and a supporting rack (101-9); The lower clamping and conveying mechanism (101-7) is used for clamping the middle part of reed crops and conveying the reed crops to the rear of the device; The two sides of the lower-layer clamping and conveying mechanism (101-7) are respectively provided with a support rack (101-9), the upper-layer clamping and conveying mechanism (101-8) is arranged on the support racks (101-9), the height of the upper-layer clamping and conveying mechanism (101-8) is larger than that of the lower-layer clamping and conveying mechanism (101-7), and the upper-layer clamping and conveying mechanism (101-8) is used for clamping the upper parts of reed crops and conveying the reed crops to the rear of the device; The lower clamping and conveying mechanism (101-7) comprises lower clamping and conveying units which are symmetrically arranged, wherein each lower clamping and conveying unit comprises a clamping and conveying belt (101-7-01), a lower mounting seat (101-7-02), a press roller (101-7-03), a carrier roller (101-7-04), a tensioning roller (101-7-05), a driving roller (101-7-06), a driven roller (101-7-07), a lower supporting frame (101-7-08) and a longitudinal conveying lower hydraulic motor (101-7-09); The driving roller (101-7-06) is arranged at one end of the lower layer supporting frame (101-7-08), and the driven roller (101-7-07) is arranged at the other end of the lower layer supporting frame (101-7-08); The compression roller (101-7-03) is arranged on the inner side of the lower layer supporting frame (101-7-08), and the carrier roller (101-7-04) and the tensioning roller (101-7-05) are arranged on the outer side of the lower layer supporting frame (101-7-08); the longitudinal conveying lower hydraulic motor (101-7-09) is connected with the driving roller (101-7-06) and is used for driving the driving roller (101-7-06) to rotate; The clamping conveying belt (101-7-01) is arranged on the driving roller (101-7-06) and the driven roller (101-7-07) and is contacted with the compression roller (101-7-03), the carrier roller (101-7-04) and the tensioning roller (101-7-05); The upper layer clamping and conveying mechanism (101-8) comprises upper layer clamping and conveying units which are symmetrically arranged, each upper layer clamping and conveying unit comprises an upper layer driving sprocket (101-8-01), an upper layer driven sprocket (101-8-02), an upper layer conveying chain (101-8-03), an upper layer supporting frame (101-8-04), an upper layer reed separating ring (101-8-05), an upper layer annular supporting arm (101-8-06), an upper layer longitudinal conveying lifting hydraulic cylinder (101-8-07), a plurality of upper layer shifting teeth (101-8-08), an upper layer inner chain plate (101-8-09) and a longitudinal conveying upper layer hydraulic motor (101-8-10); The upper layer driving sprocket (101-8-01) and the upper layer driven sprocket (101-8-02) are arranged on the upper layer supporting frame (101-8-04); The upper layer conveying chain (101-8-03) is arranged on the upper layer driving chain wheel (101-8-01) and the upper layer driven chain wheel (101-8-02); the upper inner chain plate (101-8-09) is arranged on the upper conveying chain (101-8-03); The upper layer poking teeth (101-8-08) are uniformly arranged on the upper layer inner chain plate (101-8-09); one end of the upper layer longitudinal conveying lifting hydraulic cylinder (101-8-07) is connected with the support rack (101-9); the bottom of the upper annular supporting arm (101-8-06) is connected with the other end of the upper longitudinal conveying lifting hydraulic cylinder (101-8-07), and the top of the upper annular supporting arm (101-8-06) is connected with the upper reed separating ring (101-8-05); the upper reed separating ring (101-8-05) is arranged at the periphery of the upper conveying chain (101-8-03).
  2. 2. The reed crop harvesting, clamping and longitudinal conveying device according to claim 1, wherein compression rollers (101-7-03) on lower supporting frames (101-7-08) oppositely arranged in the lower clamping and conveying mechanism (101-7) are arranged in a staggered manner.
  3. 3. The reed crop harvesting gripping longitudinal conveyor according to claim 1, wherein the friction angle of the driven roller (101-7-07) should satisfy the following conditions: Wherein, the Represents the friction angle between reed stalks and the clamping conveyer belt (101-7-01); d represents the sum of the diameter of the driven roller (101-7-07) and the belt thickness of the clamping conveyer belt (101-7-01); represents the diameter of the reed crop stalk.
  4. 4. The reed crop harvesting gripping longitudinal conveyor according to claim 1, wherein the radius r of the press roll (101-7-03) should satisfy the following constraints: Wherein, the Represents the diameter of the reed crop stalks.
  5. 5. The reed crop harvesting gripping longitudinal conveying apparatus as claimed in claim 1, wherein the gripping speed of the lower gripping conveying mechanism (101-7) should satisfy the following condition: Wherein, the Representing the conveying speed of the clamping conveying belt (101-7-01); Representing the included angle between the vertical clamping longitudinal conveying mechanism and the ground; indicating the forward speed of the reed harvester.
  6. 6. The reed crop harvesting gripping longitudinal conveying apparatus as claimed in claim 1, wherein the upper gripping conveying mechanism (101-8) further comprises a displacement sensor (101-8-11) and a control unit; The control unit is respectively connected with the displacement sensor (101-8-11) and the upper layer longitudinal conveying lifting hydraulic cylinder (101-8-07), the displacement sensor (101-8-11) is used for detecting the expansion and contraction amount of the upper layer longitudinal conveying lifting hydraulic cylinder (101-8-07), and the control unit adjusts the expansion and contraction amount of the upper layer longitudinal conveying lifting hydraulic cylinder (101-8-07) according to the average height h avg of reed to enable the height of the upper layer clamping conveying mechanism (101-8) to be equal to Wherein h 2 is the actual length of reed, and h 2 =h avg - h 1 ,h 1 is the height of the cutter from the ground.
  7. 7. The reed crop harvesting, clamping and longitudinal conveying device according to claim 1, wherein upper layer poking teeth (101-8-08) of upper layer clamping and conveying units symmetrically arranged on the upper layer clamping and conveying mechanism (101-8) are arranged in a staggered mode.
  8. 8. A harvester comprising a reed crop harvesting gripping longitudinal conveyor as claimed in any one of claims 1 to 7.

Description

Reed crop harvesting, clamping and longitudinal conveying device and harvester Technical Field The invention belongs to the technical field of agricultural machinery, and particularly relates to a reed crop harvesting, clamping and longitudinal conveying device and a harvester. Background Reed is a high-stalk crop which grows on the wetland and has important values in ecological, economic and cultural aspects. Because of the severe growth environment, the manual harvest has high working strength and low harvesting efficiency. When harvesting high-stalk crops such as reed and the like, the conventional harvesting equipment usually adopts a single-layer conveying device to shift the reed, so that the reed is easy to cause uneven stress, the reed is easy to topple or break in the transportation process, and the like, and the subsequent bundling and other works are not facilitated. Disclosure of Invention In view of the above technical problems, one of the purposes of the present invention is to provide a longitudinal conveying device for harvesting and clamping reed crops, which adopts a double-layer clamping conveying mechanism, wherein the lower part is clamped and conveyed by a conveying belt, and the upper part is conveyed by a shifting tooth of a conveying chain, so that the reed can be prevented from falling down. Meanwhile, the height of the upper clamping and conveying mechanism is changed by adopting the lifting hydraulic cylinder of the upper longitudinal conveying mechanism, so that the reed with different heights can be harvested, and other high-stalk crops can be harvested, so that the applicability is strong. One of the purposes of one mode of the invention is to provide a harvester, which comprises a reed crop harvesting and clamping longitudinal conveying device, can longitudinally transport the reed crops after harvesting, does not cause the problem of dumping or breaking, and improves the reed harvesting quality. Note that the description of these objects does not prevent the existence of other objects. Not all of the above objects need be achieved in one embodiment of the present invention. Other objects than the above objects can be extracted from the description of the specification, drawings, and claims. The present invention achieves the above technical object by the following means. A reed crop harvesting, clamping and longitudinal conveying device comprises a lower-layer clamping and conveying mechanism, an upper-layer clamping and conveying mechanism and a supporting bench; the lower clamping and conveying mechanism is used for clamping the middle part of reed crops and conveying the reed crops to the rear of the device; The two sides of the lower clamping and conveying mechanism are respectively provided with a supporting rack, the upper clamping and conveying mechanism of the supporting rack is arranged on the supporting rack, the height of the upper clamping and conveying mechanism is larger than that of the lower clamping and conveying mechanism, and the upper clamping and conveying mechanism is used for clamping the tops of reed crops and conveying the reed crops to the rear of the device. In the above scheme, the lower layer clamping and conveying mechanism comprises lower layer clamping and conveying units which are symmetrically arranged, and each lower layer clamping and conveying unit comprises a clamping and conveying belt, a lower layer installation seat, a press roller, a carrier roller, a tensioning roller, a driving roller, a driven roller, a lower layer supporting frame and a longitudinal conveying lower layer hydraulic motor; the driving roller is arranged at one end of the lower support frame, and the driven roller is arranged at the other end of the lower support frame; the compression roller is arranged on the inner side of the lower support frame, and the carrier roller and the tensioning roller are arranged on the outer side of the lower support frame; the longitudinal conveying lower hydraulic motor is connected with the driving roller and is used for driving the driving roller to rotate; the clamping conveyer belt is arranged on the driving roller and the driven roller and is contacted with the compression roller, the carrier roller and the tensioning roller. Further, the compression rollers on the lower supporting frames which are oppositely arranged in the lower clamping and conveying mechanism are arranged in a staggered mode. Further, the friction angle of the driven roller should satisfy the following conditions: Wherein, beta represents a friction angle between reed stems and the clamping conveyor belt; d represents the sum of the diameter of the driven roller and the thickness of the clamping conveyer belt; d represents the diameter of the reed crop stalk. Further, the radius r of the press roll should satisfy the following constraints: d<r<4d wherein d represents the diameter of the reed crop stalk. Further, the clamping speed of the lower clamping and