Potato harvesting bucket and screen integrated machine

Abstract

The application discloses a potato harvesting bucket and sieve integrated machine and concretely relates to the harvesting technical field, which comprises a harvesting frame, a chain belt, a moving strip, a lower end assembly, two loosening columns and an upper end assembly, the inside of the harvesting frame is internally provided with the chain belt for harvesting and sieving potatoes; the moving strip is slidably arranged on one side of the harvesting frame; the lower end assembly is arranged on one side of the moving strip, and the two loosening columns are arranged on the lower end assembly; and the upper end assembly is arranged on the inner wall of the moving strip and close to the top end position thereof. The application can extrude and loosen the stones in the gaps at different positions of the chain belt, realizes large-area and rapid cleaning, greatly improves the cleaning efficiency, makes the potato harvesting operation more convenient, and solves the problems that the stones stuck in the gaps of the chain belt cannot be loosened in a large area and rapidly, the maintenance work after harvesting is faced with difficulties, and the harvesting operation is brought many inconveniences.

Description

Technical Field

[0001] This invention relates to the field of harvesting technology, and more specifically, to a potato harvesting sieve integrated machine. Background Technology

[0002] The potato harvesting and screening integrated machine is a device that integrates digging, screening, and conveying functions. It can complete the separation of potatoes and soil in one go, reduce the mud content, and use the conveyor belt to transport the separated potatoes to the collection device, where they are neatly laid out in rows for easy subsequent picking and bagging.

[0003] In publicly available literature, patent publication number CN222263651U discloses an integrated machine for digging, grading, and packaging potatoes. This technology involves a feed inlet fixedly mounted on a frame, with a screen below the inlet for grading and screening the potatoes. Below the screen are several inclined hoppers, with vertically arranged bagging rings connected to the tail of each hopper. This equipment automates the digging, conveying, grading, weighing, and packaging of potatoes, significantly reducing manual labor and lowering costs. However, this technology also has the following problems.

[0004] During potato harvesting and sorting, a conveyor belt is used to transport and screen excess soil through its gaps. However, stones in the soil can clog the gaps in the conveyor belt, requiring regular manual cleaning of these stones. The difficulty in quickly and extensively loosening the stones stuck in the gaps creates challenges for post-harvest maintenance, resulting in low efficiency, high time and labor costs, and severely impacting the smoothness and economic benefits of the entire harvesting and sorting process, causing numerous inconveniences to potato harvesting operations. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: a potato harvesting and screening integrated machine, including a harvesting frame, wherein a chain for harvesting and screening potatoes is installed inside the harvesting frame; The moving bar is slidably positioned on one side of the harvesting frame; The lower end assembly is installed on one side of the moving strip, and two loosening posts are installed on the lower end assembly; The upper component is located on one side of the inner wall of the moving strip and near its top. The upper component is provided with a plurality of pointed strips distributed in an arc. An upper linkage component is installed at the top of the moving bar, and multiple upper pressure bars are installed on the upper linkage component; The lower linkage component is located at the bottom end of the moving bar, and multiple downward pressure bars are provided on the lower linkage component; The driving component is located on one side of the inner wall of the moving bar, away from its top end. The driving component drives the moving bar to move, thereby driving the lower end assembly to drive the two loosening columns to squeeze and loosen the stones in the gap at the lower end of the chain belt; When the moving bar moves, it also drives the upper component to drive multiple pointed bars to squeeze and loosen the stones in the gap at the upper end of the chain belt; The upper linkage drives multiple upper pressure bars to squeeze and loosen the stones in the gaps of the inclined surface of the chain belt, and drives the lower linkage to drive multiple lower pressure bars to squeeze and loosen the stones in the gaps of the inclined surface of the chain belt.

[0006] Preferably, the lower component includes: A sleeve is fixed to one side of the moving strip. The sleeve is slidably connected to the harvesting frame. A guide rod is installed through the inner wall of the sleeve. The guide rod is fixedly connected to the harvesting frame and is used to guide the sleeve to slide. The fork is fixedly installed at one end of the sleeve, and both of the loosening posts are fixedly connected to the fork.

[0007] Preferably, a gap is provided between the two loosened columns.

[0008] Preferably, the upper component includes: A steel rope is fixed to one side of the inner wall of the moving bar and near its top, and the top of the steel rope is connected to a slanted sleeve plate. An electromagnet is installed on one side of the inclined sleeve plate. The outer wall of the electromagnet is fixedly connected to the harvesting frame. The electromagnet is used to magnetically attract the inclined sleeve plate. A guide sleeve is installed on the outer wall of the steel rope. The guide sleeve is used to guide the sliding of the steel rope and is fixedly connected to the harvesting frame. A guide post is installed on the inner wall of the inclined sleeve plate. The guide post is fixedly connected to the harvesting frame and is used to guide the sliding of the inclined sleeve plate. Branch strips are installed at one end of the inclined sleeve plate, and multiple pointed strips are fixedly connected to the branch strips.

[0009] Preferably, the inclined sleeve plate is slidably connected to the harvesting frame, and both the inclined sleeve plate and the guide post are inclined.

[0010] Preferably, the inclined sleeve plate is fixedly connected to the branch strip, and the vertical cross-sectional shape of the plurality of pointed strips is triangular.

[0011] Preferably, the upper linkage component includes: An upper inclined frame is fixedly connected to the top of a movable bar, and a movable shaft is slidably connected inside the upper inclined frame; A sliding block is fixedly connected to one end of the moving shaft. The inner wall of the sliding block is provided with a support rod, which is fixedly connected to the harvesting frame. Both the support rod and the harvesting frame are slidably connected to the sliding block. An upper inclined strip is fixedly connected to one end of the sliding block, and an extrusion strip is fixedly connected between the upper pressure strip and the upper inclined strip.

[0012] Preferably, the lower linkage component includes: A lower inclined frame is fixedly installed at the bottom end of the moving bar, and a moving rod is slidably installed inside the lower inclined frame; A slotted block is fixedly connected to one end of a moving rod. A sliding shaft is provided on the inner wall of the slotted block. The sliding shaft is fixedly connected to the harvesting frame. Both the harvesting frame and the sliding shaft are slidably connected to the slotted block. An extrusion frame is fixed to one end of the slotted block, and the inclination angle of the extrusion frame is smaller than the inclination angle of the upper inclined bar.

[0013] Preferably, the driving component includes: A linear servo is installed on one side of the inner wall of the moving bar, away from its top end. The output end of the linear servo is used to drive the moving bar to move. The outer wall of the linear servo is fixedly connected to the harvesting frame.

[0014] Preferably, the chain belt has a large toothed roller inside, a geared motor is installed at one end of the large toothed roller, and an angle sensor is installed at the other end of the large toothed roller. The angle sensor is used to sense the angle of the large toothed roller, and the geared motor is used to drive the large toothed roller to rotate. A small toothed roller is installed inside the chain belt and on one side of the large toothed roller. Both the small toothed roller and the large toothed roller are connected to the chain belt drive. A controller is installed on one side of the harvesting frame and away from the reduction motor. An inclined shovel is fixedly installed at one end of the harvesting frame.

[0015] The technical effects and advantages of this invention are as follows: This invention employs a structure consisting of a moving strip, a lower component, an upper component, an upper linkage, and a lower linkage. When the driving component moves the moving strip, it causes the loosening column, the pointed strip, the upper pressure strip, and the lower pressure strip to squeeze and loosen the stones in the gaps at different positions on the chain belt. This achieves rapid loosening over a large area, greatly improving cleaning efficiency and avoiding the tedious and inefficient manual cleaning of each stone. It saves a significant amount of time and manpower, making potato harvesting operations more convenient.

[0016] In the upper component of this invention, an electromagnet can magnetically attract a slanted sleeve plate. When the moving bar moves, it drives the slanted sleeve plate to move via a steel rope, thereby causing multiple pointed bars to squeeze and loosen stones in the gaps at the upper end of the chain belt. This structure is flexible in operation. By controlling the on and off of the electromagnet, the movement of the pointed bars can be precisely controlled, enabling rapid maintenance and loosening, and ensuring the normal operation of the equipment.

[0017] 3. The upper and lower linkage components of this invention are respectively constructed through upper and lower inclined frame structures. When the moving bar moves, it drives the upper and lower pressure bars to squeeze and loosen the stones in the gaps of the inclined surface of the chain belt at different inclination angles. The upper inclined bar and the pressure frame have different inclination angles, which can realize rapid action at different inclination angles. It can simultaneously loosen multiple stones in multiple gaps and improve the overall loosening effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the potato harvesting hopper and sieve integrated machine of the present invention.

[0019] Figure 2 This is a schematic diagram of the vertical cross-section of the potato harvesting hopper and sieve integrated machine of the present invention.

[0020] Figure 3 This is a partial structural diagram of the connection between the moving strip and the upper inclined frame of the present invention.

[0021] Figure 4 This is a partial structural diagram of the vertical cross-section of the large and small toothed rollers of the present invention.

[0022] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Figure 6 This is a schematic diagram of a partial vertical section cut at the connection between the pointed strip and the branch strip of the present invention.

[0024] Figure 7 This is a partial structural diagram of the connection between the lower inclined frame and the moving rod of the present invention.

[0025] Figure 8 This is a top view of the integrated potato harvesting hopper and sieve machine of the present invention.

[0026] The attached diagram is labeled as follows: 1. Harvesting frame; 2. Chain belt; 3. Moving bar; 4. Loosening column; 5. Pointed bar; 6. Upper pressure bar; 7. Lower pressure bar; 8. Sleeve bar; 9. Guide rod; 10. Fork rod; 11. Steel rope; 12. Guide sleeve; 13. Inclined sleeve plate; 14. Electromagnet; 15. Guide column; 16. Branch bar; 17. Upper inclined frame; 18. Moving shaft; 19. Sliding sleeve block; 20. Support rod; 21. Upper inclined bar; 22. Extrusion bar; 23. Lower inclined frame; 24. Moving rod; 25. Groove sleeve block; 26. Sliding shaft; 27. Extrusion frame; 28. Large toothed roller; 29. ​​Small toothed roller; 30. Gear motor; 31. Controller; 32. Shovel plate; 33. Angle sensor; 34. Linear servo motor. Detailed Implementation

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Example 1:

[0028] In this embodiment, the specific situation can be referred to Figure 1 - Figure 4 The potato harvesting and screening integrated machine shown includes a harvesting frame 1, inside which a chain belt 2 for harvesting and screening potatoes is installed; a moving bar 3, slidably disposed on one side of the harvesting frame 1; a lower end assembly, installed on one side of the moving bar 3, on which two loosening columns 4 are installed; an upper end assembly, disposed on one side of the inner wall of the moving bar 3 near its top, on which multiple arc-shaped pointed bars 5 are provided; an upper linkage component, installed at the top of the moving bar 3, on which multiple upper pressure bars 6 are installed; a lower linkage component, disposed at the bottom of the moving bar 3, on which multiple lower pressure bars 7 are provided; and a driving component, disposed on one side of the inner wall of the moving bar 3 away from its top.

[0029] When this technology is used, after the potatoes are harvested and screened by the chain belt 2, a large number of stones are stuck in the gaps of the chain belt 2. The driving component drives the moving bar 3 to move, which drives the lower component to drive two loosening columns 4 to squeeze and loosen the stones in the gaps at the lower end of the chain belt 2. When the moving bar 3 moves, it also drives the upper component to drive multiple pointed bars 5 to squeeze and loosen the stones in the gaps at the upper end of the chain belt 2. The upper linkage component drives multiple upper pressure bars 6 to squeeze and loosen the stones in the gaps on the upper inclined surface of the chain belt 2, and drives the lower linkage component to drive multiple lower pressure bars 7 to squeeze and loosen the stones in the gaps on the lower inclined surface of the chain belt 2. This achieves large-area rapid loosening, greatly improves the cleaning efficiency, and avoids the tediousness and inefficiency of manual cleaning one by one. Example 2:

[0030] In this embodiment, the specific situation can be referred to Figure 1 - Figure 4 As shown, the lower component includes: a sleeve 8, fixed to one side of the moving strip 3, the sleeve 8 being slidably connected to the harvesting frame 1, a guide rod 9 being installed through the inner wall of the sleeve 8, the guide rod 9 being fixedly connected to the harvesting frame 1, and the guide rod 9 being used to guide the sliding of the sleeve 8; a fork rod 10, fixedly installed at one end of the sleeve 8, and two loosening posts 4 being fixedly connected to the fork rod 10. A gap is provided between the two loosening posts 4.

[0031] When this technology is in use, when the moving bar 3 is driven to tilt to the right, the moving bar 3 will drive the sleeve 8 to tilt to the right. The sleeve 8 tilts to the right along the harvesting frame 1. At the same time, the sleeve 8 tilts to the right along the outer wall of the guide rod 9. The sleeve 8 drives the fork rod 10 to tilt to the right. The fork rod 10 drives the two loosening columns 4 to tilt to the right, so that the two loosening columns 4 squeeze the stones in the gap at the lower end of the loosening chain belt 2.

[0032] In this embodiment, the specific situation can be referred to Figure 2 - Figure 6As shown, the upper component includes: a steel rope 11, fixed to one side of the inner wall of the moving strip 3 near its top, with a slanted sleeve plate 13 connected to the top of the steel rope 11; an electromagnet 14, installed on one side of the slanted sleeve plate 13, with its outer wall fixedly connected to the harvesting frame 1, and used to magnetically attract the slanted sleeve plate 13; a guide sleeve 12, installed on the outer wall of the steel rope 11, used to guide the steel rope 11 to slide, and fixedly connected to the harvesting frame 1; a guide post 15, installed on the inner wall of the slanted sleeve plate 13, fixedly connected to the harvesting frame 1, and used to guide the slanted sleeve plate 13 to slide; and a branch strip 16, installed at one end of the slanted sleeve plate 13, with multiple pointed strips 5 fixedly connected to the branch strip 16. The slanted sleeve plate 13 is slidably connected to the harvesting frame 1, and both the slanted sleeve plate 13 and the guide post 15 are inclined. The slanted sleeve plate 13 is fixedly connected to the branch strip 16, and the vertical cross-section of the multiple pointed strips 5 is triangular.

[0033] When this technology is in use, when the moving bar 3 is driven to tilt to the right, the electromagnet 14 is activated by the controller 31. The electromagnet 14 no longer magnetically attracts the inclined sleeve plate 13. At the same time, the moving bar 3 will drive the end of the steel rope 11 to tilt to the right. The steel rope 11 slides along the inside of the guide sleeve 12. The steel rope 11 pulls the inclined sleeve plate 13 to tilt to the left. The inclined sleeve plate 13 tilts to the left along the outer wall of the guide post 15. The inclined sleeve plate 13 tilts and slides to the left with the harvesting frame 1. The inclined sleeve plate 13 separates from the electromagnet 14. The inclined sleeve plate 13 drives the branch bar 16 to tilt to the left. The branch bar 16 drives multiple pointed bars 5 to tilt to the left. In this way, the multiple pointed bars 5 squeeze and loosen the stones in the gap at the upper end of the chain belt 2, realizing rapid maintenance and loosening treatment.

[0034] In this embodiment, the specific situation can be referred to Figure 2 - Figure 4 As shown, the upper linkage includes: an upper inclined frame 17, fixedly connected to the top of the moving bar 3, with a moving shaft 18 slidably connected inside the upper inclined frame 17; a sliding block 19, fixedly connected to one end of the moving shaft 18, with a support rod 20 provided on the inner wall of the sliding block 19, the support rod 20 being fixedly connected to the harvesting frame 1, and both the support rod 20 and the harvesting frame 1 being slidably connected to the sliding block 19; an upper inclined bar 21, fixedly connected to one end of the sliding block 19, with an extrusion bar 22 fixedly connected between the upper pressure bar 6 and the upper inclined bar 21.

[0035] When this technology is used, when the moving bar 3 is driven to tilt to the right, the moving bar 3 drives the upper inclined frame 17 to tilt to the right, and the upper inclined frame 17 squeezes the moving shaft 18. After being squeezed, the moving shaft 18 tilts upward. At the same time, the moving shaft 18 drives the sliding block 19 to tilt upward. The sliding block 19 tilts upward along the outer wall of the support rod 20 and tilts upward along the inner wall of the harvesting frame 1. The sliding block 19 drives the upper inclined bar 21 to tilt upward, and the upper inclined bar 21 causes multiple squeezing bars 22 to tilt upward. The squeezing bars 22 drive the upper pressure bar 6 to tilt upward. In this way, multiple upper pressure bars 6 squeeze and loosen the stones in the gaps on the inclined surface of the chain belt 2. Multiple stones in multiple gaps can be squeezed and loosened quickly, making the squeezing and loosening process faster.

[0036] In this embodiment, the specific situation can be referred to Figure 2 - Figure 7 As shown, the lower linkage includes: a lower inclined frame 23, which is fixedly installed at the bottom end of the moving bar 3, and a moving rod 24 is slidably installed inside the lower inclined frame 23; a slotted block 25, which is fixedly connected to one end of the moving rod 24, and a sliding shaft 26 is provided on the inner wall of the slotted block 25. The sliding shaft 26 is fixedly connected to the harvesting frame 1, and both the harvesting frame 1 and the sliding shaft 26 are slidably connected to the slotted block 25; and a pressing frame 27, which is fixed to one end of the slotted block 25. The inclination angle of the pressing frame 27 is smaller than the inclination angle of the upper inclined bar 21.

[0037] When this technology is used, when the moving bar 3 is driven to tilt to the right, the moving bar 3 drives the lower inclined frame 23 to tilt to the right. The lower inclined frame 23 squeezes the moving rod 24. After being squeezed, the moving rod 24 tilts downward. The moving rod 24 drives the slotted block 25 to tilt downward. The slotted block 25 tilts downward along the outer wall of the sliding shaft 26 and along the inner wall of the harvesting frame 1. The slotted block 25 drives the pressing frame 27 to tilt downward. The pressing frame 27 causes multiple lower pressing bars 7 to tilt downward. The multiple lower pressing bars 7 squeeze and loosen the stones in the gaps of the lower inclined surface of the chain belt 2, realizing the simultaneous loosening of multiple stones in multiple gaps. Moreover, the tilt angle of the upper inclined bar 21 is greater than the tilt angle of the pressing frame 27, which can realize the rapid action of different tilt angles and realize the rapid squeezing and loosening of multiple stones on the chain belt 2 over a large area.

[0038] In this embodiment, the specific situation can be referred to Figure 3 As shown, the driving component includes: a linear servo motor 34, which is installed on one side of the inner wall of the moving bar 3 and away from its top end. The output end of the linear servo motor 34 is used to drive the moving bar 3 to move. The outer wall of the linear servo motor 34 is fixedly connected to the harvesting frame 1.

[0039] When this technology is in use, the linear servo motor 34 is activated by the controller 31. The output end of the linear servo motor 34 pushes the moving bar 3 to tilt to the right, providing power to drive the moving bar 3.

[0040] In this embodiment, the specific situation can be referred to Figure 1 - Figure 8 As shown, the chain belt 2 has a large toothed roller 28 inside. A geared motor 30 is installed at one end of the large toothed roller 28, and an angle sensor 33 is installed at the other end of the large toothed roller 28. The angle sensor 33 is used to sense the angle of the large toothed roller 28, and the geared motor 30 is used to drive the large toothed roller 28 to rotate. A small toothed roller 29 is installed inside the chain belt 2 and on one side of the large toothed roller 28. Both the small toothed roller 29 and the large toothed roller 28 are connected to the chain belt 2 for transmission. A controller 31 is installed on one side of the harvesting frame 1 and away from the geared motor 30. An inclined shovel 32 is fixedly installed at one end of the harvesting frame 1.

[0041] When this technology is in use, the top of the harvesting frame 1 is bolted to an agricultural tractor when potatoes need to be harvested. The agricultural tractor pulls the harvesting frame 1 to move it. The harvesting frame 1 drives the shovel plate 32 to move down and insert into the soil under the potatoes. In this way, the soil and potatoes move along the shovel plate 32 to the outer wall of multiple chain belts 2. The controller 31 starts the reduction motor 30, which drives the large toothed roller 28 to rotate. The large toothed roller 28 drives the chain belts 2 to mesh and drive, so that the chain belts 2 mesh and drive along the outer wall of the small toothed rollers 29. In this way, the small toothed rollers 29 are driven to rotate. The potatoes are supported by the chain belts 2 and transported backward. The soil is discharged downward through the gap between the adjacent chain rods of the chain belts 2, completing the potato harvesting and screening operation.

[0042] The above description is only a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Modifications, equivalent substitutions, etc., made within the scope of the technical solution of the present invention should all fall within the protection scope of the present invention.

Claims

1. A potato harvesting hopper and sieve integrated machine, comprising a harvesting frame (1), characterized in that: The harvesting frame (1) is equipped with a chain belt (2) for harvesting and screening potatoes. The moving bar (3) is slidably set on one side of the harvesting frame (1); The lower end assembly is installed on one side of the moving strip (3), and two loosening posts (4) are installed on the lower end assembly. The upper component is located on one side of the inner wall of the moving strip (3) and near its top. The upper component is provided with a plurality of pointed strips (5) arranged in an arc. The upper linkage component is installed at the top of the moving bar (3), and multiple upper pressure bars (6) are installed on the upper linkage component. The lower linkage component is located at the bottom end of the moving bar (3), and multiple lower pressure bars (7) are provided on the lower linkage component. The driving component is located on one side of the inner wall of the moving bar (3) and away from its top end; The driving component drives the moving bar (3) to move, so as to drive the lower end component to drive the two loosening columns (4) to squeeze and loosen the stones in the gap at the lower end of the chain (2); When the moving bar (3) moves, it also drives the upper component to drive multiple pointed bars (5) to squeeze the loose stones in the gap at the upper end of the chain belt (2); The upper linkage drives multiple upper pressure bars (6) to squeeze the stones in the gaps of the upper inclined surface of the loose chain belt (2), and drives multiple lower pressure bars (7) to squeeze the stones in the gaps of the lower inclined surface of the loose chain belt (2).

2. The potato harvesting hopper and sieve integrated machine according to claim 1, characterized in that: The lower component includes: A sleeve (8) is fixed to one side of the moving strip (3). The sleeve (8) is slidably connected to the harvesting frame (1). A guide rod (9) is installed through the inner wall of the sleeve (8). The guide rod (9) is fixedly connected to the harvesting frame (1). The guide rod (9) is used to guide the sleeve (8) to slide. The fork (10) is fixedly installed at one end of the sleeve (8), and both of the loosening posts (4) are fixedly connected to the fork (10).

3. The potato harvesting hopper and sieve integrated machine according to claim 2, characterized in that: A gap is provided between the two loose columns (4).

4. The potato harvesting hopper and sieve integrated machine according to claim 3, characterized in that: The upper component includes: A steel rope (11) is fixed to one side of the inner wall of the moving bar (3) and near its top. The top of the steel rope (11) is connected to an inclined sleeve plate (13). An electromagnet (14) is installed on one side of the inclined sleeve plate (13). The outer wall of the electromagnet (14) is fixedly connected to the harvesting frame (1). The electromagnet (14) is used to magnetically attract the inclined sleeve plate (13). A guide sleeve (12) is installed on the outer wall of the steel rope (11). The guide sleeve (12) is used to guide the steel rope (11) to slide. The guide sleeve (12) is fixedly connected to the harvesting frame (1). A guide post (15) is installed on the inner wall of the inclined sleeve plate (13). The guide post (15) is fixedly connected to the harvesting frame (1). The guide post (15) is used to guide the sliding of the inclined sleeve plate (13). Branch strip (16) is installed at one end of inclined sleeve plate (13), and multiple pointed strips (5) are fixedly connected to branch strip (16).

5. The potato harvesting hopper and sieve integrated machine according to claim 4, characterized in that: The inclined sleeve (13) is slidably connected to the harvesting frame (1), and both the inclined sleeve (13) and the guide post (15) are inclined.

6. The potato harvesting hopper and sieve integrated machine according to claim 5, characterized in that: The inclined sleeve plate (13) is fixedly connected to the branch strip (16), and the vertical cross-section of the plurality of pointed strips (5) is triangular.

7. The potato harvesting hopper and sieve integrated machine according to claim 6, characterized in that: The upper linkage component includes: The upper inclined frame (17) is fixedly connected to the top of the moving strip (3), and the upper inclined frame (17) is slidably connected to the moving shaft (18). A sliding block (19) is fixedly connected to one end of a moving shaft (18). The inner wall of the sliding block (19) is provided with a support rod (20). The support rod (20) is fixedly connected to the harvesting frame (1). The support rod (20) and the harvesting frame (1) are both slidably connected to the sliding block (19). An upper inclined strip (21) is fixedly connected to one end of a sliding block (19), and an extrusion strip (22) is fixedly connected between the upper pressure strip (6) and the upper inclined strip (21).

8. The potato harvesting hopper and sieve integrated machine according to claim 7, characterized in that: The lower linkage component includes: The lower inclined frame (23) is fixedly installed at the bottom end of the moving bar (3), and the moving rod (24) is slidably installed inside the lower inclined frame (23). The slotted block (25) is fixedly connected to one end of the moving rod (24). The inner wall of the slotted block (25) is provided with a sliding shaft (26). The sliding shaft (26) is fixedly connected to the harvesting frame (1). The harvesting frame (1) and the sliding shaft (26) are both slidably connected to the slotted block (25). The extrusion frame (27) is fixed to one end of the slotted block (25), and the inclination angle of the extrusion frame (27) is smaller than the inclination angle of the upper inclined bar (21).

9. The potato harvesting hopper and sieve integrated machine according to claim 8, characterized in that: The driving component includes: A linear servo (34) is installed on one side of the inner wall of the moving bar (3) and away from its top. The output end of the linear servo (34) is used to drive the moving bar (3) to move. The outer wall of the linear servo (34) is fixedly connected to the harvesting frame (1).

10. The potato harvesting hopper and sieve integrated machine according to claim 9, characterized in that: The chain belt (2) is provided with a large toothed roller (28) inside. A geared motor (30) is installed at one end of the large toothed roller (28), and an angle sensor (33) is installed at the other end of the large toothed roller (28). The angle sensor (33) is used to sense the angle of the large toothed roller (28), and the geared motor (30) is used to drive the large toothed roller (28) to rotate. A small toothed roller (29) is installed inside the chain belt (2) and on the side of the large toothed roller (28). Both the small toothed roller (29) and the large toothed roller (28) are connected to the chain belt (2) for transmission. A controller (31) is installed on one side of the harvesting frame (1) and away from the reduction motor (30). An inclined shovel (32) is fixedly installed at one end of the harvesting frame (1).

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