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CN-122004020-A - Automatic seedling device of getting suitable for tobacco stereoplasm plug seedling

CN122004020ACN 122004020 ACN122004020 ACN 122004020ACN-122004020-A

Abstract

The invention relates to the technical field of agricultural transplanting machinery, and discloses an automatic seedling taking device suitable for tobacco hard plug seedlings, which comprises a seedling taking mechanism, a seedling conveying mechanism and a rack, wherein the seedling taking mechanism adopts a non-circular gear planetary gear train seedling taking mechanism, is arranged at the inner side of a rack frame through a supporting plate, and is driven by a driving motor to provide power and drive by a chain to rotate around the center of a hole of the supporting plate; the support plate, the driving motor and the frame are fixedly connected, the noncircular gear and the connecting shaft are arranged in the shell, and the meshing motion of the noncircular gear in the shell enables the seedling taking arm to realize non-constant-speed rotation, so that the seedling taking needle point realizes a special seedling taking track to take out plug seedlings and transfer the plug seedlings to a seedling throwing position for throwing the seedlings; under the combined action of the seedling taking mechanism and the seedling conveying mechanism, the seedling taking test bed can realize automatic and continuous seedling taking operation of the whole tray hard plug tobacco seedlings and is convenient to operate.

Inventors

  • BAI LIZHEN
  • QIN JIN
  • ZHU HUIBIN
  • WANG MINGPENG
  • LI RONGDONG
  • LIU LIYUAN

Assignees

  • 昆明理工大学

Dates

Publication Date
20260512
Application Date
20260130

Claims (9)

  1. 1. The utility model provides an automatic seedling device that gets suitable for tobacco stereoplasm plug seedling, its characterized in that includes frame (1), gets seedling mechanism (4) and defeated seedling mechanism, the fixed backup pad (9) that is connected with in top of frame (1), get seedling mechanism (4) and install in top one side of backup pad (9), get seedling mechanism (4) and be located defeated seedling mechanism in front, get seedling mechanism (4) and can rotate around the hole center of backup pad (9), defeated seedling mechanism fixed mounting is on the hack lever of frame (1), one side fixedly connected with tray (12) of defeated seedling mechanism, one side of tray (12) is provided with stereoplasm seedling dish (3), one end fixed mounting of frame (1) has driving motor (7), driving motor (7) one end fixed connection has first sprocket (8), the outside meshing of first sprocket (8) is connected with the chain, one end meshing of chain is connected with second sprocket (6), one side of second sprocket (6) is connected with sun gear transmission shaft (5). The seedling taking mechanism (4) comprises a right shell (41) and a left Bian Keti (42), one end of a sun gear transmission shaft (5) is fixedly connected with the right shell (41), one end of the sun gear transmission shaft (5) is rotatably connected with the inside of the left shell (42), two ends of a sun gear (46) are connected with two first intermediate gears (44) in a meshed mode, one side of the first intermediate gears (44) is fixedly connected with a second intermediate gear (47) through an intermediate shaft (45), one end of the second intermediate gear (47) is connected with a planet gear (43) in a meshed mode, a planet shaft (48) is fixedly arranged in the planet gear (43), a planet carrier (49) is arranged in the seedling taking mechanism (4), the first intermediate gears (44), the second intermediate gears (47) and the planet gears (43) are arranged on the planet carrier (49), one end of the planet shaft (48) is fixedly connected with a seedling taking arm (11), one side of the supporting plate (9) is fixedly connected with a flange (10), and the planet gear (47) is connected with the sun gear (46) and the sun gear (10) in a rotating mode, and one end of the sun gear (46) is connected with the flange (10) in the rotating mode; Secondly, the seedling taking arm (11) comprises a seedling taking arm shell (113), a seedling taking needle (115), a seedling pushing rod (117), a seedling pushing block (116), a seedling taking arm rear cover (112), a shifting fork (119), a buffer pad (118), a spring (111) and a cam (1110), wherein one end of the shifting fork (119) is hinged with the inner wall of the seedling taking arm shell (113), the shifting fork (119) rotates by taking the hinging center as the rotation center, one end of the shifting fork (119) is fixedly connected with two seedling pushing blocks (116) with the other end of the seedling pushing rod (117), the seedling taking needle (115) is in contact connection with the cam (1110), the other end of the shifting fork (119) is hinged with one end of the seedling pushing rod (117), the seedling taking needle (115) is hinged with a seedling taking needle supporting rod (114), and the seedling taking needle (115) is arranged in a hole groove of the seedling pushing block (116). Still further, seedling mechanism includes horizontal module (13), first vertical module (2), second vertical module (18), connecting axle (19), first step motor (15) and second step motor (16), first vertical module (2) and second vertical module (18) fixed mounting are on two oblique hack levers of frame (1), the one end fixed mounting of second vertical module (18) has second step motor (16), second vertical module (18) are connected with first vertical module (2) through connecting axle (19), horizontal module (13) fixed mounting is in first vertical module (2) and second vertical module (18) top, and first step motor (15) are installed to the one end of horizontal module (13).
  2. 2. An automatic seedling picking device suitable for tobacco hard plug seedlings according to claim 1, wherein the short sides of the hard seedling trays (3) are longitudinal, and the long sides of the hard seedling trays are transversely and fixedly arranged on the tray (12).
  3. 3. The automatic seedling picking device suitable for tobacco hard plug seedlings according to claim 1, wherein two ends of the intermediate shaft (45) and the planet shaft (48) are respectively arranged in the left shell (42) and the right shell (41), the planet carrier (49) is embedded in the left Bian Keti (42) and the right shell (41), and the special movement track, namely the seedling picking track, of the sharp point of the seedling picking arm (11) can be realized through the meshing movement of the sun wheel (46), the first intermediate wheel (44), the second intermediate wheel (47) and the planet wheel (43).
  4. 4. The automatic seedling picking device suitable for tobacco hard plug seedlings according to claim 1, wherein the seedling picking needles (115) are four-needle cylindrical, the diameter is 2mm, the seedling picking needles (115) are symmetrically distributed on two sides of the seedling picking arm (11), the distance between the seedling picking needles (115) is matched with the size of a hole opening of the hard plug seedlings (3), one end of the spring (111) is fixedly connected with one end of the seedling pushing rod (117), the other end of the spring (111) is fixedly connected with the rear cover (112) of the seedling picking arm, the buffer pad (118) is located in the seedling picking arm (11), and one end of the seedling pushing rod (117) is movably connected in the buffer pad (118).
  5. 5. The automatic seedling taking device suitable for tobacco hard plug seedlings according to claim 1, wherein a seedling taking point, a bowl discharging point, a seedling throwing point and a bowl entering point are arranged in a movement locus K of a tip point of a seedling taking needle (115), wherein the seedling taking point is O 4 , the bowl discharging point is O 9 , the seedling throwing point is O 11 and the bowl entering point is O 10 , a parallel intersection point of the seedling throwing point O 11 and a hard seedling tray (3) is O 5 , the nearest points of the movement locus K and the hard seedling tray (3) are O 6 and O 7 respectively, the seedling taking point is a position where the tip point of the seedling taking needle (115) is located when the seedling taking needle (115) finishes, the bowl discharging point is a position where the tip point of the seedling taking needle (115) leaves the hard seedling tray (3), the bowl throwing point is a position where the tip point of the seedling taking needle (115) moves to a position above a duckbill planter, and the bowl entering point is a position where the seedling taking needle (115) starts to contact with a bowl body.
  6. 6. An automatic seedling picking device suitable for tobacco hard plug seedlings according to claim 5, wherein when the seedling picking needle (115) is positioned at a seedling picking point, the initial installation angle of the planet carrier (49) is 51 degrees, the included angle between the point connecting line of the planet wheel (43) to the seedling picking needle (115) and the horizontal plane is 15.63 degrees, when the seedling picking needle (115) is positioned at a bowl outlet point, the initial installation angle of the planet carrier (49) is 30.54 degrees, the included angle between the point connecting line of the planet wheel (43) to the seedling picking needle (115) and the horizontal plane is 6.96 degrees, when the seedling picking needle (115) is positioned at a seedling throwing point, the initial installation angle of the planet carrier (49) is 221 degrees, the included angle between the point connecting line of the planet wheel (43) to the seedling picking needle (115) and the horizontal plane is-13.5 degrees, the seedling throwing angle is 68 degrees, and when the seedling picking needle (115) is positioned at a bowl inlet point, the initial installation angle of the planet carrier (49) is 26 degrees, and the angle between the point connecting line of the planet wheel (115) and the horizontal plane is 35 degrees.
  7. 7. The automatic seedling picking device suitable for tobacco hard plug seedlings according to claim 6, wherein the minimum distance between the seedling picking track and the hard seedling tray (3) is 5.2mm, the minimum distance between the seedling throwing point of the seedling picking track and the hard seedling tray (3) is 8.6cm, and the inclination angle between the seedling picking track and the hard seedling tray (3) is 65-70 degrees.
  8. 8. An automatic seedling picking device suitable for tobacco hard plug seedlings according to claim 1, characterized in that the center of a sun wheel (46) is set to be O 1 , the center of a second intermediate wheel (47) is set to be O 2 , the center of a planet wheel (43) is set to be O 3 , the seedling picking point of a seedling picking needle (115) is O 4 , the initial installation angle of the planet carrier (49) relative to the horizontal direction according to anticlockwise direction, namely, the included angle between O 1- O 2 and the horizontal direction is 47 degrees, the included angle between the corner of the planet carrier (49), namely, the O 1- O 2 connecting line and the O 2- O 3 connecting line, is-68 degrees, the included angle between the seedling picking arm (11) relative to the planet carrier (49), namely, the O 3- O 4 connecting line and the O 2- O 3 connecting line, is 39 degrees, the center distance between the second intermediate wheel (47) and the planet wheel (43), namely, the center distance L O2-O3 between the sun wheel (46) and the first intermediate wheel (44) is 65mm, the center distance L O1-O2 is 65mm, the length of the seedling picking arm (11) is the inclined angle between the seedling picking arm (11) and one of the inclined edges (38-38 mm, and the inclined edges (38-38 mm is the inclined edges (38-38 mm).
  9. 9. The automatic seedling taking device suitable for the tobacco hard plug seedlings according to claim 1, wherein the first longitudinal module (2) and the second longitudinal module (18) are parallel in position, the transverse module (13), the first longitudinal module (2) and the second longitudinal module (18) form an I-shaped structure, the second stepper motor (16) controls the longitudinal movement of the first longitudinal module (2) and the second longitudinal module (18), the first stepper motor (15) controls the transverse movement of the transverse module (13), the first longitudinal module (2) and the second longitudinal module (18) have the same stroke, the stroke of the transverse module (13) is 340mm, one end of the first stepper motor (15) is provided with a first motor seat (14), one end of the second stepper motor (16) is provided with a second motor seat (17), the first stepper motor (15) and the second stepper motor (16) are controlled by a single chip microcomputer, the first longitudinal module (2) and the second stepper motor (18) are respectively driven, the first stepper motor (15) and the second stepper motor (16) are respectively supplied with seedlings, the first longitudinal module (13) and the second stepper motor (16) are respectively supplied with seedlings, the first longitudinal module (15) and the seedlings are respectively supplied with the seedlings in a horizontal mode, the second stepping motor (16) is provided with a brake.

Description

Automatic seedling device of getting suitable for tobacco stereoplasm plug seedling Technical Field The invention relates to the technical field of agricultural transplanting machinery, in particular to an automatic seedling taking device suitable for tobacco hard plug seedlings. Background The tobacco seedling raising trays are made of polyvinyl chloride materials, have the characteristics of fragile texture and incapability of bending, and are widely applied. The seedling tray occupies a large amount of space in the automatic seedling taking process because the seedling tray cannot be bent, is easy to interfere with a seedling taking mechanism, and has low seedling taking efficiency. In order to overcome the problems, a high-efficiency automatic seedling taking device suitable for hard plug seedlings needs to be invented. According to the requirements of pot-clamping seedling taking, related non-circular gear planetary gear train automatic seedling taking mechanisms are designed by related scholars, such as incomplete denaturation eccentric circle-non-circular gear combined planetary gear train seedling taking mechanisms, the application number is CN110235573A, an oval-combined concave-convex conjugate gear planetary gear train seedling taking mechanism is CN109863865B, mechanical vibration and impact are reduced to a certain extent due to the design of the non-circular gear planetary gear train seedling taking mechanisms, the seedling taking efficiency is high, but the seedling taking mechanisms have the problems that the seedling throwing position cannot be normally thrown and the seedling taking track can interfere with a hard seedling disc in the seedling taking process of the hard seedling disc, the requirement of the seedling taking mechanism cannot be met, and the continuous seedling taking of the whole disc pot seedling by the seedling taking mechanism cannot be realized. Disclosure of Invention In order to solve the problems, the invention combines the characteristics of the hard seedling tray and the actual requirements of tobacco pot seedling taking operation, designs the automatic seedling taking test bed suitable for tobacco hard plug seedling, realizes continuous seedling taking operation on the hard plug seedling under the combined action of a seedling taking mechanism and a seedling conveying mechanism through a special seedling taking track realized by the seedling taking mechanism, and has the advantages of compact structure, small volume and high matching precision, and achieves the aims of improving the automation and the working efficiency of a transplanting machine and continuously taking the tobacco seedlings of the whole hard plug seedling by installing the test bed on the transplanting machine instead of manual seedling taking and seedling throwing. The automatic seedling taking device suitable for the tobacco hard plug seedlings comprises a frame, a seedling taking mechanism and a seedling conveying mechanism, wherein the top of the frame is fixedly connected with a supporting plate, the seedling taking mechanism is arranged on one side of the top of the supporting plate, the seedling taking mechanism is positioned right in front of the seedling conveying mechanism and can rotate around the center of a hole of the supporting plate, the seedling conveying mechanism is fixedly arranged on a bracket rod of the frame, one side of the seedling conveying mechanism is fixedly connected with a tray, one side of the tray is provided with a hard seedling tray, one end of the frame is fixedly provided with a driving motor, one end of the driving motor is fixedly connected with a first sprocket, the outer part of the first sprocket is connected with a chain, one end of the chain is connected with a second sprocket in a meshed manner, one side of the second sprocket is fixedly connected with a sun wheel transmission shaft, and the short side of the hard seedling tray is longitudinally and transversely and fixedly arranged on the tray; the seedling taking mechanism comprises a right shell and a left shell, one end of a sun gear transmission shaft is fixedly connected with the right shell, one end of the sun gear transmission shaft is rotatably connected in the left shell, two ends of the sun gear are connected with two first intermediate gears in a meshed mode, the inside of the first intermediate gears is fixedly connected with a second intermediate gear through an intermediate shaft, one end of the second intermediate gear is connected with a planet gear in a meshed mode, a planet shaft is fixedly arranged in the planet gear, a planet carrier is arranged in the seedling taking mechanism, the first intermediate gear, the second intermediate gear and the planet gear are arranged on the planet carrier, one end of the planet shaft is fixedly connected with a seedling taking arm, one side of the support plate is fixedly connected with a flange plate, the flange plate is fixedly connected with the