A transmission component and a potato harvester

Abstract

The present application relates to a transmission component and a potato harvester, belonging to the technical field of potato harvesters. It includes a support frame, which consists of two parallel support plates. A conveying chain for conveying potatoes is arranged between the two support plates. A stirring roller is rotatably arranged between the two support plates, and the stirring roller is located inside the space surrounded by the conveying chain. A transmission shaft is rotatably arranged on the support frame, and the transmission shaft is used to connect to the rear output shaft of a tractor. A gearbox is arranged on the support plate. An input shaft and two output shafts are rotatably arranged on the gearbox. The rotational speeds of the two output shafts are the same. The transmission shaft is connected to the input shaft. The length direction of the output shaft is perpendicular to the length direction of the input shaft. Both ends of the stirring roller are placed outside the support plate. First gears are arranged at the output shafts of the gearbox and at the ends of the stirring roller located outside the support plate, and a first chain is wound around the first gears. The present application has the advantage of improving the separation effect between soil and potatoes.

Description

Technical Field

[0001] This application relates to the technical field of potato harvesters, and in particular to a transmission component and a potato harvester. Background Art

[0002] With the development of agriculture, the planting area of potatoes in China is getting larger and larger. The whole process of potato operation has basically achieved mechanization. Compared with manual operation, the main advantages of mechanical operation are high efficiency and low cost.

[0003] Currently, a patent document with the authorization announcement number CN209462937U discloses an M-chain type potato harvester, including a frame and an M-chain assembly. A support frame is arranged on the frame, a power shaft is arranged on the frame, a drive shaft is arranged on the power shaft, a gearbox is arranged on the drive shaft, a traction frame is arranged on the frame, a bending roller and a pressing bending roller are arranged on the M-chain assembly, a harvesting steel shovel is arranged on the M-chain assembly, a first-stage chain and a second-stage chain are arranged on the gearbox, a first-stage power shaft is arranged on the first-stage chain, a second-stage power shaft is arranged on the second-stage chain, a third-stage chain is arranged on the first-stage power shaft, and a third-stage power shaft is arranged on the third-stage chain. The present invention is an M-chain type potato harvester, which innovates in structure and transmission on the basis of the traditional conveying chain. The chain is shaped into an M shape by using the pressing bending roller and the bending roller. This kind of conveying chain greatly improves the separation effect between potatoes and soil during potato harvesting, and also greatly reduces the potato injury rate. The harvester is connected to a tractor, and the rear output shaft of the tractor provides power for the harvester to perform harvesting operations.

[0004] However, during the conveying process of potatoes, the potatoes are conveyed smoothly on the chain, resulting in a relatively average separation effect between the soil and the potatoes during the conveying process. Summary of the Invention

[0005] In order to improve the separation effect between the soil and the potatoes, this application provides a transmission component and a potato harvester.

[0006] In a first aspect, a transmission component provided by this application adopts the following technical solutions:

[0007] A transmission assembly comprises a support frame, the support frame comprises two support plates parallel to each other, a conveying chain for conveying potatoes is arranged between the two support plates; a stirring roller is rotatably arranged between the two support plates, and the stirring roller is located inside the space surrounded by the conveying chain; a transmission shaft is rotatably arranged on the support frame, and the transmission shaft is used to connect the rear output shaft of the tractor, a gear box is arranged on the support plate, an input shaft and two output shafts are rotatably arranged on the gear box, the two output shafts have the same rotation speed, the transmission shaft is connected to the input shaft, the length direction of the output shaft is perpendicular to the length direction of the input shaft, both ends of the stirring roller are placed on the outside of the support plate, the output shaft of the gear box and the end of the stirring roller located outside the support plate are both provided with a first gear, and a first chain is wound around the first gear.

[0008] Optionally, two conveying shafts are arranged between the two support plates, the conveying chain is wound around the conveying shafts, two second gears are provided on an output shaft of the gear box, the two second gears are coaxially arranged on the output shaft, both sides of the two conveying shafts pass through the support plates, a third gear is coaxially arranged on one side of the conveying shaft outside the support plate, the third gears on the two conveying shafts are located on the same side, and a second chain and a third chain are respectively wound around the second gear and the third gear.

[0009] Optionally, there are two stirring rollers, the axial directions of the two stirring rollers are parallel to each other, and along the forward direction of the support frame, the two stirring rollers are respectively the first stirring roller and the second stirring roller, the first gear includes a fourth gear arranged on the first stirring roller, the fourth gear is located on the side away from the third gear, a fifth gear is arranged on any of the conveying shafts, the first chain includes a fourth chain wound around the fourth gear and the fifth gear; a sixth gear is arranged on the output shaft of the gear box away from the second gear, the first gear also includes a seventh gear arranged on the second stirring roller, and the first chain also includes a fifth chain for winding around the seventh gear and the sixth gear.

[0010] Optionally, a mounting plate is fixedly provided on the stirring roller, and the mounting plate is coaxially arranged on the stirring roller. Two receiving rollers are rotatably provided on the mounting plate, and the receiving rollers are used to lift the conveying chain. The rotation axes of the two receiving rollers are parallel to each other and perpendicular to the plane where the mounting plate is located. The two receiving rollers are located on both sides of the mounting plate and are symmetrically arranged along the receiving rollers.

[0011] Optionally, a receiving seat is provided on the mounting plate, and the receiving seat is located between the receiving roller and the stirring roller. The receiving seat is provided with an arc groove adapted to the cross-section of the receiving roller and the stirring roller on the surface facing the receiving roller and the stirring roller. A plurality of roller shafts are rolled in the arc groove facing the receiving roller, and the receiving roller abuts against the roller shaft.

[0012] Optionally, two baffles are provided on the receiving seat, and the two baffles are respectively located on both sides of the rotation axis of the receiving roller, and the ends of the two baffles are both in contact with the peripheral wall of the receiving roller.

[0013] Optionally, the two baffles are both arranged on the receiving seat at an angle along the rotation direction of the receiving roller.

[0014] Optionally, a mounting shaft is rotatably provided on the mounting plate, the receiving roller is coaxially provided on the mounting shaft, the mounting shaft passes through the mounting plate, a drive shaft is fixedly provided on the support plate, the drive shaft is located on the support plate facing away from the receiving roller, the stirring roller is coaxially rotatably provided in the drive shaft, one end of the drive shaft close to the mounting plate abuts against the mounting plate, and the mounting shaft passes through the peripheral wall of the mounting plate and abuts against the drive shaft.

[0015] Optionally, two bevel gears meshing with each other are provided in the gearbox, the rotation axes of the two bevel gears are perpendicular to each other, the input shaft is coaxially arranged on one bevel gear, and the two output shafts are arranged on the other bevel gear.

[0016] In a second aspect, the present application provides a potato harvester, which adopts the following technical solution:

[0017] Optionally, a potato harvester includes a transmission assembly and a frame, wherein the support frame is arranged on the frame, and rollers are arranged at the bottom of the frame; a hook is arranged on the frame, and the hook is used to be hung on the end of a tractor.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. When harvesting potatoes, the potatoes are removed from the ground and moved relatively to the conveyor chain. When the support frame moves forward driven by the tractor, the transmission shaft transmits the power of the tractor's rear output shaft to the input shaft of the gearbox, and transmits the power source through the output shaft. When the output shaft rotates, the conveyor shaft drives the first gear to rotate, and the rotation of the first gear drives the first chain to run. The running of the first chain drives the stirring roller to rotate. The stirring roller rotates in the gap and abuts against the conveyor chain to drive the conveyor chain to move back and forth. The conveyor chain drives the potatoes to jump on the conveyor chain. In this process, the soil on the potatoes is separated from the potatoes, thereby improving the separation effect of soil and potatoes.

[0020] 2. When the output shaft rotates, the output shaft drives the two second gears to rotate, and the second gears drive the second chain and the third chain to run respectively. The second chain and the third chain drive the corresponding third gear to rotate. The rotation of the third gear drives the corresponding conveyor shaft to rotate. The rotation of the conveyor shaft drives the conveyor chain to run, thereby conveying potatoes. The operation is simple and convenient.

[0021] 3. When the conveying shaft rotates, the conveying shaft drives the fifth gear to rotate. The fifth gear drives the fourth chain to run, and the fourth chain drives the fourth gear to rotate. The rotation of the fourth gear drives the first stirring roller to rotate. The output shaft drives the sixth gear to rotate. The sixth gear drives the fifth chain to run, and the fifth chain drives the seventh gear to run, thereby driving the second stirring roller to rotate. In the above transmission process, the load of the transmission mechanism is effectively balanced, and the possibility of component damage between the transmission components and the support plate is reduced.

[0022] 4. When the stirring roller rotates, the stirring roller drives the support plate to rotate. The rotation of the support plate drives the receiving roller to rotate with the stirring roller as the rotation axis, thereby driving the receiving roller to lift the conveying chain, and further driving the potatoes to shake on the conveying chain. Further, when the stirring roller rotates, it rotates relative to the driving shaft, and then drives the receiving roller to rotate relative to each other, so as to facilitate the abutment of the receiving roller and the conveying chain, reduce the impact force of the receiving roller on the conveying chain, and extend the service life of the conveying chain. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the potato harvester according to the embodiment of the present application;

[0024] Figure 2 is the structural schematic diagram of the transmission component according to the embodiment of the present application;

[0025] Figure 3 is the side view of the transmission component according to the embodiment of the present application;

[0026] Figure 4 is the side view of the transmission component according to the embodiment of the present application;

[0027] Figure 5 is the cross-sectional view of the transmission component according to the embodiment of the present application;

[0028] Figure 6 is the structural schematic diagram of the stirring roller according to the embodiment of the present application;

[0029] Figure 7 is the cross-sectional view of the receiving seat according to the embodiment of the present application;

[0030] Figure 8 is Figure 7 the enlarged schematic view of part A in

[0031] Description of the Reference Numerals: 1, support frame; 111, support plate; 112, connecting beam;

[0032] 2, stirring roller; 3, transmission shaft; 4, gearbox; 5, input shaft; 6, output shaft;

[0033] 7, first gear; 71, fourth gear; 72, fifth gear; 73, sixth gear; 74, seventh gear;

[0034] 8. First chain; 81. Fourth chain; 82. Fifth chain;

[0035] 9. Conveyor shaft; 10. Second gear; 11. Third gear; 14. Second chain; 15. Third chain; 16. Mounting plate; 17. Bearing roller; 18. Bearing seat; 19. Arc groove; 20. Roller shaft; 21. Baffle; 22. Mounting shaft; 23. Drive shaft; 24. Frame; 25. Roller; 26. Hook. Detailed implementation mode

[0036] The following further elaborates on this application in conjunction with the attached Figures 1-8 for a more detailed description of this application.

[0037] The embodiment of this application discloses a transmission component. Refer to Figure 1 and Figure 2 , the transmission component includes a support frame 1, the support frame 1 includes two parallel support plates 111, and there are connecting beams 112 provided for connecting the two support plates 111. There are two connecting beams 112, and the two connecting beams 112 are respectively located at the ends of the support plates 111; a conveying chain for conveying potatoes is arranged between the two support plates 111;

[0038] Refer to Figure 2 and Figure 3 , a stirring roller 2 is rotatably arranged between the two support plates 111. The length direction and the rotation axis of the stirring roller 2 are both perpendicular to the plate surface of the support plate 111. The stirring roller 2 is used to shake the conveying chain, and the stirring roller 2 is located inside the space surrounded by the conveying chain;

[0039] Refer to Figure 3 , Figure 4 and Figure 5 , a transmission shaft 3 is rotatably arranged on the support frame 1. The transmission shaft 3 is installed obliquely and is used to connect the rear output shaft of the tractor. A gearbox 4 is fixedly arranged on any one of the support plates 111. An input shaft 5 and two output shafts 6 are rotatably arranged on the gearbox 4. The power source input by the input shaft 5 is conveyed out through the two output shafts 6. The rotation speeds of the two output shafts 6 are the same. The transmission shaft 3 is connected to the input shaft 5. The length direction of the output shaft 6 is perpendicular to the length direction of the input shaft 5. Both ends of the stirring roller 2 are placed outside the support plate 111. First gears 7 are arranged at the ends of the output shaft 6 of the gearbox 4 and the stirring roller 2 located outside the support plate 111. A first chain 8 is wound around the first gear 7.

[0040] When the driving source of the rear output shaft of the tractor is transmitted to the gearbox 4 through the transmission shaft 3, the transmission shaft 3 drives the input shaft 5 to rotate. The input shaft 5 transmits the power source to the output shaft 6. The rotation of the output shaft 6 drives the first gear 7 to rotate. The rotation of the first gear 7 drives the first chain 8 to run. The running of the first chain 8 drives the first gear 7 on the stirring roller 2 to rotate, thereby driving the stirring roller 2 to rotate. The rotation of the stirring roller 2 drives the conveying chain to vibrate. The conveying chain drives the potatoes to vibrate on the conveying chain, thereby separating the soil from the potatoes and improving the soil separation efficiency. Further, the gearbox 4 is located on the support plate 111, which facilitates the transfer of the gravity and load of the gearbox 4 to the ground and reduces the possibility of damage to the support frame 1. Further, the load on the connecting beam 112 is reduced, and the possibility of bending damage to the connecting beam 112 is reduced.

[0041] Refer to Figure 2 , in the embodiment of the present application, two conveying shafts 9 are arranged between the two support plates 111. The rotation axis of the conveying shaft 9 is parallel to the rotation axis of the stirring roller 2. The conveying chain is wound around the conveying shaft 9. Two second gears 10 are arranged on an output shaft 6 of the gearbox 4. The two second gears 10 are coaxially arranged on the output shaft 6. The specifications of the two second gears 10 are the same. Both sides of the two conveying shafts 9 pass through the support plate 111. A third gear 11 is coaxially arranged on the side of the conveying shaft 9 outside the support plate 111. The third gears 11 on the two conveying shafts 9 are on the same side. The second chain 14 and the third chain 15 are respectively wound around the second gear 10 and the third gear 11. After the transmission shaft 3 transmits the power source to the output shaft 6, the rotation of the output shaft 6 drives the second gear 10 to rotate. The rotation of the second gear 10 drives the corresponding second chain 14 and third chain 15 to run. The running of the second chain 14 and the third chain 15 drives the corresponding third gear 11 to rotate, thereby driving the corresponding conveying shaft 9 to rotate. The rotation of the conveying shaft 9 drives the conveying chain to run, thereby conveying the potatoes. The operation is simple and convenient.

[0042] Refer to Figure 3 , Figure 4 and Figure 5, in the embodiment of the present application, two stirring rollers 2 are provided. The axial directions of the two stirring rollers 2 are parallel to each other. Along the direction in which the tractor drives the support frame 1 to move forward, the two stirring rollers 2 are successively the first stirring roller 2 and the second stirring roller 2. The first gear 7 includes a fourth gear 71 provided on the first stirring roller 2. The fourth gear 71 is located on the side away from the third gear 11. A fifth gear 72 is provided on any conveying shaft 9. The first chain 8 includes a fourth chain 81 wound around the fourth gear 71 and the fifth gear 72. The conveying shaft 9 rotates driven by the gearbox 4. The rotation of the conveying shaft 9 drives the fifth gear 72 to rotate. The rotation of the fifth gear 72 drives the fourth chain 81 to run. The running of the fourth chain 81 drives the fourth gear 71 to rotate. The rotation of the fourth gear 71 drives the first stirring roller 2 to rotate, and the operation is simple and convenient;

[0043] Refer to Figure 3 , Figure 4 and Figure 5 , on the output shaft 6 of the gearbox 4 away from the second gear 10, a sixth gear 73 is provided. The first gear 7 further includes a seventh gear 74 provided on the second stirring roller 2. The first chain 8 further includes a fifth chain 82 for winding around the seventh gear 74 and the sixth gear 73. When the output shaft 6 of the gearbox 4 rotates, the rotation of the output shaft 6 drives the sixth gear 73 to rotate. The rotation of the sixth gear 73 drives the fifth chain 82 to run. The running of the fifth chain 82 drives the seventh gear 74 to rotate. The rotation of the seventh gear 74 drives the second stirring roller 2 to rotate, and the operation is simple and convenient.

[0044] Refer to Figure 5 and Figure 6, to improve the agitation degree of the agitation roller 2 on the conveying chain, a mounting plate 16 is fixedly arranged on the agitation roller 2. The mounting plate 16 is coaxially arranged on the agitation roller 2. Two receiving rollers 17 are rotatably arranged on the mounting plate 16. The receiving rollers 17 are located in the inner space of the conveying chain and are used to lift the conveying chain. The rotation axes of the two receiving rollers 17 are parallel to each other and perpendicular to the plane where the mounting plate 16 is located. The two receiving rollers 17 are located on both sides of the mounting plate 16 and are symmetrically arranged along the receiving rollers 17. During the rotation of the agitation roller 2, the agitation roller 2 drives the mounting plate 16 to rotate. The rotation of the mounting plate 16 drives the two receiving rollers 17 to rotate with the agitation roller 2 as the rotation axis. When the receiving roller 17 rotates towards the conveying chain, when the mounting plate 16 is in an inclined position, the receiving roller 17 abuts against the conveying chain. The mounting plate 16 drives the receiving roller 17 to rotate, and the receiving roller 17 lifts the conveying chain, and the conveying chain is convex. Subsequently, the receiving roller 17 rotates in the direction away from the conveying chain and separates from the conveying chain. The above process is repeated, and the receiving roller 17 repeatedly impacts and abuts against the conveying chain, thereby driving the potatoes to jump on the conveying chain, and further improving the separation effect of the soil and the potatoes. Further, the receiving roller 17 is rotatably arranged on the mounting plate 16. After the receiving roller 17 is driven by the mounting plate 16 to contact the conveying chain, under the blocking action of the conveying chain, the receiving roller 17 rotates relatively, so as to facilitate the receiving roller 17 to pass through the conveying chain, thereby reducing the possibility of damage to the conveying chain and the receiving roller 17.

[0045] Refer to Figure 6 and Figure 7 , driven by the mounting plate 16, the receiving roller 17 impacts on the conveying chain. During this process, due to the cantilever structure of the receiving roller 17, the impact force of the receiving roller 17 is relatively large, which easily causes the receiving roller 17 to tilt and bend, resulting in limited rotation of the receiving roller 17. A receiving seat 18 is arranged on the mounting plate 16. The receiving seat 18 is located between the receiving roller 17 and the agitation roller 2. The surfaces of the receiving seat 18 facing the receiving roller 17 and the agitation roller 2 are both provided with arc-shaped grooves 19 adapted to the cross-sections of the receiving roller 17 and the agitation roller 2. The arc-shaped groove 19 facing the agitation roller 2 fits on the peripheral wall of the agitation roller 2 and is fixedly arranged on the agitation roller 2. A plurality of roller shafts 20 are rotatably arranged in the arc-shaped groove 19 facing the receiving roller 17. The receiving roller 17 abuts against the roller shafts 20 to facilitate the rotation of the receiving roller 17. Under the supporting action of the receiving seat 18 and the roller shafts 20, the receiving roller 17 is received, reducing the possibility of the receiving roller 17 tilting and bending, so that when the receiving roller 17 contacts the conveying chain, the receiving roller 17 rotates passively, thus facilitating the receiving roller 17 to pass through the conveying chain.

[0046] Refer to Figure 7 and Figure 8The baffles 21 are respectively located on both sides of the rotation axis of the receiving roller 17, and the ends of the two baffles 21 are both in contact with the peripheral wall of the receiving roller 17; the baffles 21 close the opening of the arc groove 19, so that the baffles 21 and the receiving roller 17 combine to close the opening of the arc groove 19, thereby reducing the possibility of mud entering the arc groove 19; further, the baffles 21 are in contact with the side walls of the receiving roller 17, and the baffles 21 scrape the mud on the receiving roller 17 and slide along the baffles 21, thereby reducing the possibility of mud attached to the receiving roller 17 entering the arc groove 19, thereby reducing the possibility of mud jamming the roller shaft 20.

[0047] Reference Figure 7 and Figure 8 In order to reduce the obstruction of the baffle 21 to the rotation of the receiving roller 17, the two baffles 21 are both arranged on the receiving seat 18 at an angle along the rotation direction of the receiving roller 17; the baffles 21 are arranged at an angle along the rotation direction of the receiving roller 17 to facilitate the passive rotation of the receiving roller 17.

[0048] Reference Figure 6 , when mud accidentally enters the arc groove 19, the mud will hinder the rotation of the receiving roller 17, making it difficult for the receiving roller 17 to rotate passively; in order to facilitate the active rotation of the receiving roller 17, a mounting shaft 22 is rotatably provided on the mounting plate 16, and the receiving roller 17 is coaxially arranged on the mounting shaft 22. The mounting shaft 22 passes through the mounting plate 16, and a driving shaft 23 is fixedly provided on the support plate 111. The driving shaft 23 is located on the support plate 111 away from the receiving roller 17. The stirring roller 2 is coaxially rotated. It is placed in the driving shaft 23, and one end of the driving shaft 23 close to the mounting plate 16 abuts against the mounting plate 16, and the mounting shaft 22 passes through the peripheral wall of the mounting plate 16 and abuts against the driving shaft 23; under the action of the driving shaft 23, the driving shaft 23 and the stirring roller 2 rotate relative to each other, because the driving shaft 23 and the mounting shaft 22 abut against each other, thereby driving the mounting shaft 22 to rotate, and the rotation of the mounting shaft 22 drives the receiving roller 17 to rotate, thereby making the receiving roller 17 passively rotate, and making it easier for the receiving roller 17 to pass through the conveying chain.

[0049] Reference Figure 5 In the embodiment of the present application, two bevel gears meshing with each other are provided in the gear box 4, the rotation axes of the two bevel gears are perpendicular to each other, the input shaft 5 is coaxially arranged on one bevel gear, and the two output shafts 6 are arranged on the other bevel gear.

[0050] The implementation principle of a transmission assembly in the embodiment of the present application is as follows:

[0051] After the transmission shaft 3 transmits the power source of the rear output shaft 6 of the tractor to the gearbox 4, the transmission shaft 3 rotates to drive the bevel gear to rotate, the bevel gear rotates to drive the two output shafts 6 to rotate, the output shafts 6 rotate to drive the second gear 10 to rotate, the second gear 10 rotates to drive the corresponding second chain 14 and third chain 15 to operate, the second chain 14 and third chain 15 operate to drive the corresponding third gear 11 to rotate, and then drive the corresponding conveying shaft 9 to rotate. The conveying shaft 9 rotates to drive the conveying chain to operate, thereby conveying the potatoes;

[0052] The rotation of the conveying shaft 9 drives the fifth gear 72 to rotate, the fifth gear 72 rotates to drive the fourth chain 81 to operate, the fourth chain 81 operates to drive the fourth gear 71 to rotate, and the fourth gear 71 rotates to drive the first stirring roller 2 to rotate;

[0053] The rotation of the output shaft 6 drives the sixth gear 73 to rotate, the sixth gear 73 rotates to drive the fifth chain 82 to operate, the fifth chain 82 operates to drive the seventh gear 74 to rotate, and the seventh gear 74 rotates to drive the second stirring roller 2 to rotate;

[0054] The rotation of the stirring roller 2 drives the mounting plate 16 to rotate, the mounting plate 16 rotates to drive the receiving roller 17 to rotate, and the receiving roller 17 rotates to shake the conveying chain, thereby separating the potatoes from the soil; At this time, the drive shaft 23 rotates relative to the stirring roller 2, the drive shaft 23 drives the mounting shaft 22 to rotate, the mounting shaft 22 rotates to drive the receiving roller 17 to rotate, and the receiving roller 17 rotates through the conveying chain to reduce the possibility of the receiving roller 17 damaging the conveying chain.

[0055] This application embodiment discloses a potato harvester. Refer to Figure 1 , the potato harvester includes a transmission component, and further includes a frame 24. The support frame 1 is arranged on the frame 24, and rollers 25 are arranged at the bottom of the frame 24; A hook 26 is arranged on the frame 24, and the hook 26 is used for hanging on the end of the tractor.

[0056] The implementation principle of a potato harvester in this application embodiment is as follows:

[0057] When harvesting potatoes, the frame 24 is hung on the tractor, and the transmission shaft 3 is connected to the rear output shaft 6 of the tractor. The tractor drives the frame 24 to move forward to harvest the potatoes.

[0058] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A transmission component, characterized in that: It includes a support frame (1), and the support frame (1) includes two parallel support plates (111). A conveying chain for conveying potatoes is arranged between the two support plates (111). A stirring roller (2) is rotatably arranged between the two support plates (111), and the stirring roller (2) is located inside the space surrounded by the conveying chain. A transmission shaft (3) is rotatably arranged on the support frame (1), and the transmission shaft (3) is used to connect to the rear output shaft of a tractor. A gearbox (4) is arranged on the support plate (111). An input shaft (5) and two output shafts (6) are rotatably arranged on the gearbox (4). The rotational speeds of the two output shafts (6) are the same. The transmission shaft (3) is connected to the input shaft (5). The length direction of the output shaft (6) is perpendicular to the length direction of the input shaft (5). Both ends of the stirring roller (2) are placed outside the support plate (111). First gears (7) are arranged at the ends of the output shaft (6) of the gearbox (4) and the stirring roller (2) outside the support plate (111). A first chain (8) is wound around the first gears (7); An installation plate (16) is fixedly arranged on the stirring roller (2). The installation plate (16) is coaxially arranged on the stirring roller (2). Two receiving rollers (17) are rotatably arranged on the installation plate (16). The receiving rollers (17) are used to lift the conveying chain. The rotational axes of the two receiving rollers (17) are parallel to each other and perpendicular to the plane where the installation plate (16) is located. The two receiving rollers (17) are located on both sides of the installation plate (16) and are symmetrically arranged along the receiving rollers (17); A receiving seat (18) is arranged on the installation plate (16). The receiving seat (18) is located between the receiving roller (17) and the stirring roller (2). Arc-shaped grooves (19) adapted to the cross-sections of the receiving roller (17) and the stirring roller (2) are formed on the surfaces of the receiving seat (18) facing the receiving roller (17) and the stirring roller (2). A plurality of roller shafts (20) are rotatably arranged in the arc-shaped groove (19) facing the receiving roller (17). The receiving roller (17) abuts against the roller shafts (20); Two baffle plates (21) are arranged on the receiving seat (18). The two baffle plates (21) are respectively located on both sides of the rotational axis of the receiving roller (17). The ends of the two baffle plates (21) abut against the circumferential wall of the receiving roller (17); Both of the two baffle plates (21) are inclined on the receiving seat (18) along the rotational direction of the receiving roller (17); A mounting shaft (22) is rotatably provided on the mounting plate (16), the receiving roller (17) is coaxially provided on the mounting shaft (22), the mounting shaft (22) passes through the mounting plate (16), a driving shaft (23) is fixedly provided on the support plate (111), the driving shaft (23) is located on the support plate (111) away from the receiving roller (17), the stirring roller (2) is coaxially rotatably provided inside the driving shaft (23), one end of the driving shaft (23) close to the mounting plate (16) abuts against the mounting plate (16), and the mounting shaft (22) passes through the peripheral wall of the mounting plate (16) and abuts against the driving shaft (23).

2. The transmission assembly according to claim 1, wherein: Two conveying shafts (9) are arranged between the two support plates (111), the conveying chain is wound around the conveying shafts (9), two second gears (10) are arranged on an output shaft (6) of the gear box (4), the two second gears (10) are coaxially arranged on the output shaft (6), both sides of the two conveying shafts (9) pass through the support plate (111), a third gear (11) is coaxially arranged on one side of the conveying shaft (9) outside the support plate (111), the third gears (11) on the two conveying shafts (9) are located on the same side, and a second chain (14) and a third chain (15) are respectively wound around the second gear (10) and the third gear (11).

3. A transmission component according to claim 2, characterized in that: Two stirring rollers (2) are provided, and the axial directions of the two stirring rollers (2) are parallel to each other. Along the forward direction of the support frame (1), the two stirring rollers (2) are sequentially a first stirring roller (2) and a second stirring roller (2). The first gear (7) includes a fourth gear (71) provided on the first stirring roller (2), and the fourth gear (71) is located on the side away from the third gear (11). A fifth gear (72) is provided on any of the conveying shafts (9). The first chain (8) includes a fourth chain (81) wound around the fourth gear (71) and the fifth gear (72). A sixth gear (73) is provided on the output shaft (6) of the gear box (4) away from the second gear (10). The first gear (7) also includes a seventh gear (74) provided on the second stirring roller (2). The first chain (8) also includes a fifth chain (82) for winding around the seventh gear (74) and the sixth gear (73).

4. A transmission component according to claim 1, characterized in that: Two mutually meshing bevel gears are arranged in the gear box (4), and the rotation axes of the two bevel gears are perpendicular to each other. The input shaft (5) is coaxially arranged on one bevel gear, and the two output shafts (6) are arranged on the other bevel gear.

5. A potato harvester, comprising the transmission assembly according to any one of claims 1-4, characterized in that: The invention also comprises a frame (24), the support frame (1) is arranged on the frame (24), a roller (25) is arranged at the bottom of the frame (24), and a hook (26) is arranged on the frame (24), and the hook (26) is used to be hung on the end of a tractor.

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