A potato harvester with automatic sorting function

Abstract

This invention relates to the field of potato harvester technology, specifically to an automatic potato harvester for sorting and harvesting. The machine includes a chassis, a bag-feeding assembly mounted on its surface and communicating with the interior of the chassis, a sorting assembly mounted inside the chassis, a clamping assembly mounted inside the chassis and movable up, down, left, right, forward, and backward, and a binding assembly mounted inside the chassis for sealing burlap sacks. The surface of the chassis has a discharge port. The binding assembly includes a binding frame, a male clamp, and a female clamp. The binding frame has a first notch for the burlap sacks to enter, and a first storage box is fixedly connected to the surface of the binding frame. The purpose of this invention is to solve the problem that potato harvesting is usually done manually, which not only reduces harvesting efficiency but may also lead to worker fatigue and health problems.

Description

Technical Field

[0001] This invention relates to the field of potato harvester technology, specifically to a potato harvester with automatic sorting function. Background Technology

[0002] Rural mountainous areas have limited agricultural machinery, which is often single-function and low in technology. This results in numerous shortcomings in key aspects of major crop production, including tillage, sowing, plant protection, and harvesting. These shortcomings manifest in several ways: first, there are many single-function machines but few multi-functional ones; second, there are relatively many main machines but few supporting implements; third, there are many low-tech machines but few high-tech ones; and fourth, achieving full mechanization is difficult. Given the current situation facing agricultural development in mountainous areas, appropriately scaled agricultural operations are a realistic option for transforming the mode of agricultural modernization. Currently, conditions for appropriately scaled agricultural operations are maturing, and the construction of high-standard agriculture is rapidly advancing. Guiding farmers to develop various forms of mechanized production can solve the problem of scaled agricultural operations and achieve agricultural modernization in mountainous areas.

[0003] The current potato harvesting process typically involves harvesting potatoes, removing the soil, bagging them, and then loading them onto trucks for transportation. The bagging process usually requires manual bagging and tying, which takes workers a long time. This not only prolongs the overall harvesting time and reduces efficiency, but may also lead to worker fatigue and health problems. Therefore, there is an urgent need to develop mechanization. Summary of the Invention

[0004] The purpose of this invention is to provide a potato harvester with automatic sorting to solve the problem that the potato harvesting process is usually done manually by bagging the potatoes, which not only reduces harvesting efficiency but may also lead to worker fatigue and health problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A potato harvester with automatic sorting and harvesting functions includes a chassis, a bag feeding assembly installed on the surface of the chassis and communicating with the interior of the chassis, a sorting assembly installed inside the chassis, a clamping assembly installed inside the chassis and movable up, down, left, right, forward and backward, a binding assembly installed inside the chassis for sealing burlap bags, and a discharge port opened on the surface of the chassis.

[0007] Preferably, the binding assembly includes a binding frame, a sub-clamp, and a female clamp. The binding frame has a first notch for the burlap sack to enter. A first storage box is fixedly connected to the surface of the binding frame, and a second storage box is fixedly connected to the surface of the binding frame. The first and second storage boxes are located on opposite sides of the first notch of the binding frame. The sub-clamp is disposed in the first storage box, and the female clamp is disposed in the second storage box.

[0008] Preferably, the surface of the binding frame is equipped with two horizontally movable fifth electric push rods, which are respectively positioned at the first and second storage boxes. The surface of the binding frame is also equipped with two symmetrically arranged sixth electric push rods. The telescopic ends of the two sixth electric push rods are connected to the fifth electric push rods, and the sixth electric push rods are used to drive the fifth electric push rods to move horizontally. The telescopic ends of the two fifth electric push rods are fixedly connected with female locking blocks. The surfaces of the female and male clips are both fixedly equipped with female locking blocks that engage with the female locking blocks.

[0009] Preferably, the surface of the sub-clamp is equipped with a retractable docking block, and the surface of the sub-clamp is provided with a first retraction groove for the docking block to extend and retract. A first return spring is fixedly connected between the docking block and the wall of the first retraction groove. The side of the docking block facing the female clamp is an inclined surface. The top of the female clamp is provided with a docking slot for the docking block to be inserted. A retractable positioning block is installed in the docking slot. The interior of the female clamp is provided with a second retraction groove for the positioning block to retract. A second return spring is fixedly connected between the positioning block and the wall of the second retraction groove. The side of the positioning block facing the docking block is an inclined surface. The surface of the docking block is provided with a positioning slot for the positioning block to be inserted.

[0010] Preferably, the sorting assembly includes a sorting tray, a support baffle, a discharge frame, and a first motor. The first motor is fixedly connected to the chassis, and the output end of the first motor is coaxially fixedly connected to the sorting tray. The support baffle is fixedly connected to the chassis, and the support baffle is coaxially rotatably connected to the sorting tray. The surface of the support baffle has a second notch for potatoes to fall into, and the discharge frame is fixedly installed at the second notch on the surface of the support baffle.

[0011] Preferably, the bag feeding assembly includes a bag storage box, a positioning push plate, and a fourth electric push rod. The bag storage box is fixedly connected to the machine housing and is internally connected to the machine housing. The positioning push plate is located inside the bag storage box. The fourth electric push rod is installed on the surface of the bag storage box, and the telescopic end of the fourth electric push rod movably penetrates the surface of the bag storage box and is fixedly connected to the positioning push plate.

[0012] Preferably, the clamping assembly includes a support disk, a second electric push rod, a third electric push rod, and an electric gripper. There are two of each of the second electric push rod, the third electric push rod, and the electric gripper. The two second electric push rods are symmetrically arranged on both sides of the support disk. The telescopic ends of the two second electric push rods are respectively fixedly connected to the two third electric push rods, and the telescopic ends of the two third electric push rods are respectively fixedly connected to the two electric grippers.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By setting up a binding component and using a clamping component to move the burlap bag, the burlap bag collects the potatoes that fall from the sorting component, and then moves to the binding component to seal the bag, thus completing the mechanized potato bagging process. This allows the potato harvester to harvest potatoes while simultaneously sorting and bagging them, making it convenient to use.

[0015] 2. By setting up a sorting component, when potatoes fall onto the sorting tray, they will only fall from the discharge frame when the sorting tray rotates to align with the discharge frame. This makes it easier to control the amount of potatoes falling during bagging by controlling the number of rotations of the sorting tray.

[0016] 3. By setting up a binding component, after the potatoes are bagged, the burlap sacks filled with potatoes can be automatically sealed. Then, they can be directly moved to the truck with the clamping component to complete the loading. This saves manual binding, improves harvesting efficiency, and reduces labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of a partially cut section of the present invention;

[0019] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a partial cross-sectional structural diagram of the binding component of the present invention;

[0021] Figure 5 This is a cross-sectional structural diagram of the clip of the present invention;

[0022] Figure 6 This is a cross-sectional structural diagram of the mating plug of the present invention;

[0023] Figure 7 This is a cross-sectional structural diagram of the female clamp of the present invention;

[0024] Figure 8 This is a schematic diagram of the connection structure between the sub-card connector and the mother card connector of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of the snap-fit ​​connection between the female clip and the male clip of the present invention;

[0026] Figure 10 This is a cross-sectional structural diagram of the sorting component of the present invention;

[0027] Figure 11This is a schematic diagram of the structure of the clamping assembly of the present invention;

[0028] Figure 12 For the present invention Figure 11 Enlarged view of point B in the middle;

[0029] Figure 13 This is a cross-sectional structural diagram of the bag feeding assembly of the present invention.

[0030] In the diagram: 1. Chassis; 2. Storage box; 3. Sorting tray; 4. Support baffle; 5. Discharge frame; 6. First motor; 7. Second motor; 8. First lead screw; 9. First linkage block; 10. Support frame; 11. Limit block; 12. Second lead screw; 13. Second linkage block; 14. First electric push rod; 15. Third motor; 16. Support disc; 17. Second electric push rod; 18. Third electric push rod; 19. Electric gripper; 20. Fourth motor; 21. Storage bag box; 22. Alternating push plate; 23. 24. Fourth electric push rod; 25. Binding frame; 26. First storage box; 27. Sub-clamp; 28. First shrink groove; 29. ​​First return spring; 30. Connecting block; 31. Positioning slot; 32. Second storage box; 33. Female clamp; 34. Connecting slot; 35. Second return spring; 36. Positioning block; 37. Sub-clamping block; 38. Female clamping block; 39. Fifth electric push rod; 40. Sixth electric push rod; 41. Roller conveyor belt; 42. Belt conveyor belt; 43. Shovel plate; 44. Discharge port. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1 to 13 The present invention provides a technical solution.

[0033] An automated potato harvester with sorting and assemblies includes a housing 1. A bag-feeding assembly is mounted on the surface of the housing 1 and communicates with the interior of the housing 1. The bag-feeding assembly conveys burlap sacks into the housing 1. A sorting assembly and a clamping assembly are installed inside the housing 1. The clamping assembly can move up, down, left, right, forward, and backward to clamp the burlap sacks and move them. A binding assembly is installed inside the housing 1 to seal the burlap sacks. A discharge port 43 is provided on the surface of the housing 1, through which burlap sacks filled with potatoes can be discharged. By using the binding assembly and the clamping assembly to move the burlap sacks, the burlap sacks collect potatoes that fall from the sorting assembly, and then move them to the binding assembly for sealing, completing the mechanized potato bagging process. This allows the potato harvester to harvest potatoes while simultaneously sorting and bagging them, making it convenient to use.

[0034] The binding assembly includes a binding frame 24, a sub-clamp 26, and a female clamp 32. The binding frame 24 has a first notch for the burlap sack to enter. A first storage box 25 is fixedly connected to the surface of the binding frame 24, and a second storage box 31 is fixedly connected to the surface of the binding frame 24. The first storage box 25 and the second storage box 31 are located on both sides of the first notch of the binding frame 24, respectively. The sub-clamp 26 is disposed in the first storage box 25, and the female clamp 32 is disposed in the second storage box 31. The sub-clamp 26 and the female clamp 32 move relative to each other and then align to clamp the burlap sack between the sub-clamp 26 and the female clamp 32, thereby sealing the burlap sack. The tops of the first storage box 25 and the second storage box 31 have openable covers for filling the first storage box 25 with the sub-clamp 26 and filling the second storage box 31 with the female clamp 32.

[0035] Two horizontally movable fifth electric push rods 38 are mounted on the surface of the binding frame 24, and are respectively positioned at the first storage box 25 and the second storage box 31. Two symmetrically arranged sixth electric push rods 39 are mounted on the surface of the binding frame 24. The telescopic ends of the two sixth electric push rods 39 are connected to the fifth electric push rods 38. The sixth electric push rods 39 are used to drive the fifth electric push rods 38 to move horizontally. The telescopic ends of the two fifth electric push rods 38 are fixedly connected to the female locking block 37. The surfaces of the female clip 26 and the female clip 32 are fixedly mounted with female locking blocks 36 that engage with the female locking block 37. By activating the fifth electric push rod 38, the first shrink groove 27 engages with the female locking block 36. Then, by activating the sixth electric push rod 39, the fifth electric push rod 38 moves, driving the female clip 26 and the female clip 32 to move, so that the female clip 26 and the female clip 32 move relative to each other and dock.

[0036] The surface of the female clip 26 is equipped with a retractable mating block 29. A first retraction groove 27 for the mating block 29 to extend and retract is formed on the surface of the female clip 26. A first return spring 28 is fixedly connected between the mating block 29 and the wall of the first retraction groove 27. The side of the mating block 29 facing the female clip 32 is an inclined surface. The top of the female clip 32 is provided with a mating slot 33 for the mating block 29 to be inserted. A retractable positioning block 35 is installed inside the mating slot 33. A second retraction groove for the positioning block 35 to retract is formed inside the female clip 32. A second return spring 34 is fixedly connected between the positioning block 35 and the wall of the second retraction groove. The side of the positioning block 35 facing the mating block 29 is an inclined surface. The surface of the mating block 29 is provided with a retraction groove for the positioning block 35 to retract. The positioning slot 30 is embedded in the 35. The way the male clip 26 and the female clip 32 are connected is as follows: when the male clip 26 and the female clip 32 move towards each other and come into contact, the female clip 32 will first squeeze the docking block 29 to retract into the first contraction groove 27 and compress the first return spring 28 to store elastic potential energy. Then, when the docking block 29 is aligned with the docking slot 33, the docking block 29 will be embedded into the docking slot 33 under the elastic force of the first return spring 28. During the downward embedding process of the docking block 29, the positioning block 35 will be squeezed to retract and the second return spring 34 will be compressed to store elastic potential energy. Then, when the positioning block 35 is aligned with the positioning slot 30, the positioning block 35 will be embedded into the bottom positioning slot 30 under the elastic force of the second return spring 34 to fix the docking block 29.

[0037] The sorting assembly includes a sorting tray 3, a support baffle 4, a discharge frame 5, and a first motor 6. The first motor 6 is fixedly connected to the housing 1, and the output end of the first motor 6 is coaxially fixedly connected to the sorting tray 3. The support baffle 4 is fixedly connected to the housing 1, and the support baffle 4 is coaxially rotatably connected to the sorting tray 3. The surface of the support baffle 4 has a second notch for potatoes to fall. The discharge frame 5 is fixedly installed at the second notch on the surface of the support baffle 4. By setting the sorting assembly, when potatoes fall onto the sorting tray 3, they only fall from the discharge frame 5 when the sorting tray 3 rotates to align with the discharge frame 5. This makes it convenient to control the amount of potatoes falling by controlling the number of rotations of the sorting tray 3 during bagging.

[0038] The bag feeding assembly includes a bag storage box 21, a positioning push plate 22, and a fourth electric push rod 23. The bag storage box 21 is fixedly connected to the machine housing 1 and is internally connected to the machine housing 1. The positioning push plate 22 is located inside the bag storage box 21. The fourth electric push rod 23 is installed on the surface of the bag storage box 21. The telescopic end of the fourth electric push rod 23 extends through the surface of the bag storage box 21 and is fixedly connected to the positioning push plate 22. The top of the bag storage box 21 has an openable cover. By opening the cover, burlap bags are filled into the bag storage box 21. By activating the fourth electric push rod 23, the fourth electric push rod extends and pushes the positioning push plate 22. The positioning push plate 22 pushes the burlap bags, thus delivering the burlap bags into the machine housing 1.

[0039] The clamping assembly includes a support disc 16, a second electric push rod 17, a third electric push rod 18, and electric grippers 19. There are two of each of the two electric push rods 17, 18, and 19. The two second electric push rods 17 are symmetrically arranged on both sides of the support disc 16. The telescopic ends of the two second electric push rods 17 are fixedly connected to the two third electric push rods 18, and the telescopic ends of the two third electric push rods 18 are fixedly connected to the two electric grippers 19. By extending the second electric push rod 17, the distance between the two electric grippers 19 can be increased, which can open the burlap bag held by the electric grippers 19. By extending the third electric push rod 18, the height difference between the two electric grippers 19 can be adjusted within a small range.

[0040] Inside the casing 1, a first lead screw 8 is rotatably connected, and the first lead screw 8 is arranged along the Y-axis. A first linkage block 9 is threaded onto the surface of the first lead screw 8. A second lead screw 12 is rotatably connected to the surface of the first linkage block 9, and the second lead screw 12 is arranged along the X-axis. A second linkage block 13 is threaded onto the surface of the second lead screw 12. A support frame 10 is fixedly connected to the surface of the first linkage block 9, and the support frame 10 movably passes through the surface of the second linkage block 13. A first electric push rod 14, arranged along the Z-axis, is fixedly connected to the bottom end of the second linkage block 13. A third motor 15 is fixedly connected to the telescopic end of the first electric push rod 14. The output end of the three motors 15 is coaxially fixedly connected to the support disk 16. By rotating the first lead screw 8, the first linkage block 9 can be moved along the Y-axis, thereby driving the second lead screw 12, the second linkage block 13, the first electric push rod 14, and the components connected thereto to move synchronously. By rotating the second lead screw 12, the second linkage block 13 can be moved along the X-axis, thereby driving the first electric push rod 14, and the components connected thereto to move synchronously. By extending and retracting the first electric push rod 14, the components connected thereto can be moved along the Z-axis, thereby enabling the clamping assembly to be adjusted in position on the X, Y, and Z axes.

[0041] A second motor 7 is fixedly mounted on the surface of the housing 1. The output end of the second motor 7 is coaxially fixedly connected to the first lead screw 8. By starting the second motor 7, the first lead screw 8 can be rotated. A fourth motor 20 is fixedly connected to the surface of the support frame 10. The output end of the fourth motor 20 is coaxially fixedly connected to the second lead screw 12. By starting the fourth motor 20, the second lead screw 12 can be rotated. One end of the second lead screw 12 extends movably out of the housing 1, which is beneficial for providing the movement distance for taking the burlap bag out from the outlet 43. A limit stop 11 is fixedly connected to one end of the support frame 10. The limit stop 11 is coaxially fixedly connected to the end of the second lead screw 12. By setting the limit stop 11, it is beneficial to prevent the second linkage block 13 from derailing when moving along the surface of the second lead screw 12.

[0042] A belt conveyor 41 is installed at the front end of the machine housing 1. The belt conveyor 41 is driven by a belt. A shovel 42 is installed at the front end of the machine housing 1. The shovel 42 is located at the front end of the belt conveyor 41 and is used to shovel potatoes out of the soil. A roller conveyor 40 is installed inside the machine housing 1. The roller conveyor 40 is located at the rear end of the belt conveyor 41 and is driven by a chain. There are gaps between each roller of the roller conveyor 40 for soil to fall. The belt conveyor 41 is used to transfer potatoes to the roller conveyor 40. A storage box 2 is installed inside the machine housing 1. A sorting tray 3 is connected to the storage box 2. The roller conveyor 40 is used to transfer potatoes into the storage box 2. Potatoes in the storage box 2 will fall onto the sorting tray 3.

[0043] The specific solution is as follows: the machine box 1 can be towed by a tractor. During the movement of the machine box 1, the shovel 42 scoops out the potatoes in the field and transports them to the roller conveyor 40 via the belt conveyor 41. Then, the potatoes are transported to the storage box 2 via the roller conveyor 40. When the potatoes are transported on the roller conveyor 40, the soil will fall from the gaps of the roller conveyor 40 to remove the soil. The potatoes that enter the storage box 2 will be stuck in the sorting plate 3 and blocked by the support baffle 4 to prevent them from falling. The first motor 6 is started to drive the sorting plate 3 to rotate, which pushes the potatoes stuck in the sorting plate 3 to move. When the potatoes move to the discharge frame 5, they will fall out of the discharge frame 5.

[0044] By opening the top cover of the storage bag box 21, and then placing multiple burlap bags vertically inside the storage bag box 21, the fourth electric push rod 23 is activated to push the positioning push plate 22, which in turn pushes the burlap bags to move inside the storage bag box 21 until they enter the interior of the machine box 1.

[0045] By activating the second motor 7, the first lead screw 8 is rotated. The rotation of the first lead screw 8 causes the first linkage block 9 to move along the Y-axis. The movement of the first linkage block 9 causes the support frame 10 to move synchronously. The movement of the support frame 10 causes the limit block 11, the second lead screw 12, the second linkage block 13, and the fourth motor 20 to move synchronously. The movement of the second linkage block 13 causes the first electric push rod 14 and its connected components to move synchronously. Then, by activating the fourth motor 20, the second lead screw 12 is rotated. The rotation of the second lead screw 12 causes the second linkage block 13 to move along the X-axis. The movement of the second linkage block 13 causes the first electric push rod 14 and its connected components to move synchronously. Finally, by activating the extension and retraction of the first electric push rod 14, the third motor 15 is moved along the Z-axis. The movement of motor 15 drives the support disc 16 to move synchronously. The movement of support disc 16 drives the second electric push rod 17, the third electric push rod 18, and the electric gripper 19 to move synchronously together. This allows the electric gripper 19 to adjust its position on the X, Y, and Z axes. By controlling the electric gripper 19 to move above the burlap bag, the third electric push rod 18 on both sides of the support disc 16 is extended, driving the electric gripper 19 to move to both sides of the upper opening of the burlap bag. The two electric grippers 19 are then controlled to clamp the two sides of the burlap bag opening. Then, by activating the second electric push rod 17 to extend, the electric gripper 19 is moved, thereby opening the upper opening of the burlap bag. Finally, by moving the electric gripper 19, the burlap bag is moved to the discharge frame 5 to catch the potatoes falling from the discharge frame 5.

[0046] When the burlap sack is moved to the discharge frame 5 and ready to receive the potatoes, the first motor 6 is started. When the burlap sack is full, the first motor 6 is turned off, and the top opening of the burlap sack is moved away from the discharge frame 5. Then, the third motor 15 is started to drive the support disc 16 to rotate, twisting the burlap sack near the top opening into a braid. Then, the electric gripper 19 is moved to drag the burlap sack full of potatoes, so that the twisted part of the burlap sack is locked into the binding frame 24. The fifth electric push rod 38 is started to extend, pushing the female clamping block 37 to move until... The female clamp block 37 engages with the female clamp block 36. Then, the sixth electric push rod 39 extends, which can push the fifth electric push rod 38 to move. The movement of the fifth electric push rod 38 on the first storage box 25 causes the female clamp 26 to move, and the movement of the fifth electric push rod 38 on the second storage box 31 causes the female clamp 32 to move. The female clamp 26 and the female clamp 32 move towards each other. The twisted position on the burlap bag is located between the female clamp 26 and the female clamp 32. When the female clamp 26 and the female clamp 32 move towards each other and make contact, the female clamp 32 will press against the mating plug 29. The first retracts into the first retraction groove 27 and compresses the first return spring 28 to store elastic potential energy. Then, when the mating block 29 aligns with the mating slot 33, the mating block 29 will embed into the mating slot 33 under the elastic force of the first return spring 28. During the downward embedding process of the mating block 29, the positioning block 35 is first squeezed and retracted, compressing the second return spring 34 to store elastic potential energy. Then, when the positioning block 35 aligns with the positioning slot 30, the positioning block 35 will embed into the bottom positioning slot 30 under the elastic force of the second return spring 34. When the plug block 29 is fixed, the female clip 26 and the female clip 32 will connect to each other and hold the twisted part of the burlap bag, thereby sealing the burlap bag. Finally, the sixth electric push rod 39 retracts, causing the female clip block 37 to separate from the female clip block 36. The sixth electric push rod 39 retracts again to reset the female clip block 37. Then, through a structure similar to the replacement push plate 22 and the fourth electric push rod 23, the female clip 26 in the first storage box 25 and the female clip 32 in the second storage box 31 are pushed into the waiting position, ready for the next sealing.

[0047] Finally, by moving the electric gripper 19, the sealed burlap sack is dragged out of the machine box 1 from the outlet 43. A truck can be placed at the outlet 43 so that the burlap sack removed from the outlet 43 can be directly loaded onto the truck and transported away, achieving the purpose of direct loading, realizing the mechanized operation of potato harvesting, improving harvesting efficiency, and reducing labor costs.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A potato harvester with automatic sorting and harvesting capabilities, comprising a chassis (1), characterized in that: The surface of the chassis (1) is equipped with a bag feeding assembly, which is connected to the inside of the chassis (1). The inside of the chassis (1) is equipped with a sorting assembly and a clamping assembly, which can move up, down, left, right, forward and backward. The inside of the chassis (1) is equipped with a binding assembly for sealing burlap bags. The surface of the chassis (1) is provided with a delivery port (43). The binding assembly includes a binding frame (24), a sub-clamp (26), and a female clamp (32). The binding frame (24) has a first notch for the burlap sack to enter. A first storage box (25) is fixedly connected to the surface of the binding frame (24), and a second storage box (31) is fixedly connected to the surface of the binding frame (24). The first storage box (25) and the second storage box (31) are located on both sides of the first notch of the binding frame (24). The sub-clamp (26) is disposed in the first storage box (25), and the female clamp (32) is disposed in the second storage box (31). The surface of the binding frame (24) is equipped with two horizontally movable fifth electric push rods (38), which are respectively set at the first storage box (25) and the second storage box (31). The surface of the binding frame (24) is equipped with two symmetrically arranged sixth electric push rods (39). The telescopic ends of the two sixth electric push rods (39) are respectively connected to the fifth electric push rods (38). The sixth electric push rods (39) are used to drive the fifth electric push rods (38) to move horizontally. The telescopic ends of the two fifth electric push rods (38) are fixedly connected with female snap-fit ​​blocks (37). The surfaces of the sub-clamp (26) and the female clamp (32) are fixedly equipped with sub-snap-fit ​​blocks (36) that engage with the female snap-fit ​​blocks (37). The surface of the sub-clamp (26) is equipped with a retractable mating block (29). A first retraction groove (27) for the mating block (29) to extend and retract is provided on the surface of the sub-clamp (26). A first return spring (28) is fixedly connected between the mating block (29) and the wall of the first retraction groove (27). The side of the mating block (29) facing the female clamp (32) is an inclined surface. The top of the female clamp (32) is provided with a mating slot for the mating block (29) to be inserted. 33), a retractable positioning block (35) is installed in the docking slot (33), and a second shrinking groove for the positioning block (35) to shrink is provided inside the female clamp (32). A second return spring (34) is fixedly connected between the positioning block (35) and the wall of the second shrinking groove. The side of the positioning block (35) facing the docking block (29) is an inclined surface. A positioning slot (30) for the positioning block (35) to be inserted is provided on the surface of the docking block (29).

2. The potato harvester with automatic sorting according to claim 1, characterized in that, The sorting assembly includes a sorting tray (3), a support baffle (4), a discharge frame (5), and a first motor (6). The first motor (6) is fixedly connected to the chassis (1). The output end of the first motor (6) is coaxially fixedly connected to the sorting tray (3). The support baffle (4) is fixedly connected to the chassis (1). The support baffle (4) and the sorting tray (3) are coaxially rotatably connected. The surface of the support baffle (4) has a second notch for potatoes to fall into. The discharge frame (5) is fixedly installed at the second notch on the surface of the support baffle (4).

3. The potato harvester with automatic sorting according to claim 1, characterized in that, The bag feeding assembly includes a bag storage box (21), a positioning push plate (22), and a fourth electric push rod (23). The bag storage box (21) is fixedly connected to the machine housing (1), and the bag storage box (21) is internally connected to the machine housing (1). The positioning push plate (22) is located inside the bag storage box (21). The fourth electric push rod (23) is installed on the surface of the bag storage box (21). The telescopic end of the fourth electric push rod (23) moves through the surface of the bag storage box (21) and is fixedly connected to the positioning push plate (22).

4. A potato harvester with automatic sorting and harvesting according to claim 1, characterized in that, The clamping assembly includes a support disc (16), a second electric push rod (17), a third electric push rod (18), and an electric gripper (19). There are two of each of the second electric push rod (17), the third electric push rod (18), and the electric gripper (19). The two second electric push rods (17) are symmetrically arranged on both sides of the support disc (16). The telescopic ends of the two second electric push rods (17) are fixedly connected to the two third electric push rods (18), and the telescopic ends of the two third electric push rods (18) are fixedly connected to the two electric grippers (19).

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