Pull-type potato combine harvester

By designing a tractor-driven potato combine harvester, the problems of low efficiency and bulky structure in existing technologies have been solved, enabling efficient and compact potato harvesting operations, adapting to diverse plots, and meeting the needs of large-scale planting.

CN223979162UActive Publication Date: 2026-03-10薛世平
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-12
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing potato harvesters suffer from low efficiency, bulky structure, complex operation, and are not suitable for small plots, especially under diverse soil and climate conditions.

Method used

A towed potato combine harvester was designed, which uses components such as frame, potato harvesting and soil removal, potato transport and weed removal, towing frame and power transmission to realize one-stop operation of ridging, weeding, and loading. Combined with hydraulic and power transmission systems, it has a compact structure and flexible power transmission method.

Benefits of technology

It improves operational efficiency, has a compact structure, low cost, adapts to different plots of land, and is easy to operate, making it very popular among growers.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223979162U_ABST
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Abstract

A traction type potato combine harvester comprises a rack, a potato collecting and soil shoveling part, a potato conveying and impurity removing part, a traction frame, a steering oil cylinder, a main gearbox, a hydraulic master cylinder, a transverse support, a lifting oil cylinder, a potato storage box, a platform, a longitudinal annular conveying chain and a power transmission part. Due to the fact that the lifting oil cylinder and the opening and closing oil cylinder are arranged on the two sides of the potato storage box, one side plate of the potato storage box is the loading conveying chain, the loading conveying chain and the conveying chain at the bottom of the potato storage box are integrally arranged, after the opening and closing oil cylinder is opened, the loading conveying chain is opened and closed by 90 degrees and is in a straight state with the conveying chain at the bottom of the potato storage box, and the loading chain motor provides power for the conveying chain. The potatoes are conveyed more conveniently, and the efficiency is higher. The traction type potato combine harvester adopts a traction type, so that the potato combine harvester is compact and reasonable in structure, lower in manufacturing cost compared with a self-propelled type potato combine harvester, capable of performing ridging, impurity removal, grass removal and truck loading at a time, capable of saving labor, rapid and the like, and deeply popular with farmers.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment, specifically to a tractor-type potato combine harvester. Background Technology

[0002] Potatoes are widely cultivated in my country, with a concentrated harvest season. With the emergence of farmer cooperatives and large-scale farms, and the advent of large-scale agriculture with contiguous land, potato harvesting requires high-powered, high-efficiency harvesting machinery. However, given my country's vast territory and diverse soil and climate, potato harvesters suitable for large plots are currently not ideal.

[0003] My prior patents on potato harvesters solved many problems related to professional potato harvesting and played a certain role at the time. However, with the passage of time and scientific progress, I have also discovered that they have drawbacks to varying degrees, such as low efficiency and large and cumbersome structure. My prior patent on potato ton bag combine harvester, patent number 202121284235.X, has a long body, is cumbersome when turning at the edge of the field, requires many operators, and is not easy to achieve efficiency in small plots. In order to solve the above-mentioned drawbacks, this utility model was designed. Summary of the Invention

[0004] The purpose of this invention is to provide a tractor-mounted potato combine harvester, which features high operating efficiency, compact structure, and a one-stop operation from ridging, weeding, and loading, making it labor-saving and fast, and is very popular among growers.

[0005] To achieve the above objectives, the technical solution of this utility model is: a tractor-driven potato combine harvester, comprising: a frame, a potato harvesting and soil-shoveling section, a potato transporting and weeding section, a traction frame, a steering cylinder, a main gearbox, a hydraulic master pump, a transverse support, a lifting cylinder, a potato storage box, a platform, a longitudinal ring conveyor chain, and a power transmission section. The frame has a rectangular frame structure, with the traction frame, steering cylinder, main gearbox, and hydraulic master pump located at its front end. The potato harvesting and soil-shoveling section is located at the lower front end of the frame, including: a pressing roller, a grass-cutting blade, a pressing chain roller, and a ridge-raising assembly. The potato transporting and weeding section is located in the lower middle part of the frame, with a vibrating conveyor chain, a vibrating roller, a weed-crushing conveyor chain, and a grass-following conveyor chain arranged sequentially from front to back. The transverse support, lifting cylinder, and potato storage box are arranged sequentially from front to back on the upper part of the frame. The system includes a platform and a longitudinal ring conveyor chain. The longitudinal ring conveyor chain contains a waste discharge conveyor chain and a clean potato conveyor chain. The front end of the clean potato conveyor chain has a potato discharge angle adjustment chain, the angle of which is adjusted by a hydraulic cylinder. The clean potato conveyor chain is fixed above the platform. A waste chute is installed on the platform's railings. Wheels are installed under the frame. Lifting cylinders and opening / closing cylinders are installed on both sides of the potato storage box. One side plate of the potato storage box is a loading conveyor chain, which is integrated with the bottom conveyor chain of the potato storage box. When the opening / closing cylinder is activated, the loading conveyor chain opens / closes 90° to be parallel to the bottom conveyor chain. Loading conveyor chain side plates are installed on both sides of the loading conveyor chain, which are matched to the opening / closing of the potato storage box. The power of the conveyor chain is provided by a loading chain motor installed on the upper outer side of the loading conveyor chain. The opening of the potato storage box corresponds to the potato discharge angle adjustment chain.

[0006] The longitudinal ring conveyor chain has a tray on the outer ring chain and a contact chain on the inner ring chain. The contact chain is adapted to the tray on the outer ring chain to complete the conveying of clean potatoes until the potatoes fall onto the clean potato conveyor chain.

[0007] The power transmission system consists of two transmission methods. One method includes a main gearbox, a secondary gearbox, and a universal coupling. The main gearbox is connected to the corner box via a belt. The corner box transmits power to the secondary gearbox via the universal coupling. The secondary gearbox transmits power to the vibrating conveyor chain, the crushing conveyor chain, and the grass conveyor chain via shafts and sprockets. The other method is a hydraulic transmission system, which includes a hydraulic master pump, a hydraulic tank, a filter, a radiator, a hydraulic distribution valve, a waste discharge motor, a clean potato chain motor, a loading chain motor, and various hydraulic cylinders. The main gearbox transmits power to the hydraulic master pump, which in turn transmits power to the hydraulic distribution valve. The hydraulic distribution valve then transmits power to the waste discharge motor, the clean potato chain motor, the loading chain motor, and various hydraulic cylinders.

[0008] The grass-following conveyor chain is equipped with a grass-following fence at its tail.

[0009] The frame is equipped with outriggers at the front for easy use when parking.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. Because the potato storage box of this utility model is equipped with lifting cylinders and opening and closing cylinders on both sides, and one side plate of the potato storage box is a loading conveyor chain, the loading conveyor chain is integrated with the bottom conveyor chain of the potato storage box. After the opening and closing cylinder is opened, the loading conveyor chain opens and closes 90° and is in a straight state with the bottom conveyor chain. The loading chain motor provides power to the conveyor chain, making the transportation of potatoes more convenient and more efficient.

[0012] 2. This utility model adopts a tractor-driven design, making the potato combine harvester compact and reasonable in structure, and lower in cost than the self-propelled type. It can complete the entire process from ridging, weeding, and loading in one go, which has the characteristics of saving labor and speed, and is very popular among growers.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is the front view of the present utility model;

[0015] Figure 2 for Figure 1 Top view;

[0016] Figure 3 for Figure 1 The reverse view;

[0017] Figure 4 for Figure 1 AA view;

[0018] Figure 5 for Figure 1 The right view;

[0019] Figure 6 This is a diagram illustrating the unloading of potato storage boxes.

[0020] Figure 7 for Figure 1 The CC view.

[0021] In the diagram: 1. Traction frame, 2. Hydraulic master pump, 3. Lifting cylinder, 4. Lateral support, 5. Lifting cylinder, 6. Steering cylinder, 7. Loading chain motor, 8. Potato storage box, 9. Potato outlet angle adjustment chain, 10. Debris chute, 11. Platform, 12. Cleaned potato conveyor chain, 13. Cleaned potato chain motor, 14. Longitudinal chain drive box, 15. Debris outlet conveyor chain, 16. Straightening conveyor chain, 17. Auxiliary gearbox, 18. Longitudinal ring conveyor chain, 19. Straightening fence, 20. Crushing conveyor chain, 21. Vibrating roller, 22. Vibrating conveyor chain, 23. Pressing roller, 24. Frame, 25. Cultivation assembly, 26. Debris outlet motor, 27. Main gearbox, 28. Hydraulic oil tank, 29. Filter, 30. Radiator, 31. Hydraulic distribution valve, 32. Approach chain, 33. Loading conveyor chain, 34. Loading conveyor chain side plate. Detailed Implementation

[0022] As shown in the figure, this utility model discloses a tractor-driven potato combine harvester, comprising: a frame 24, a potato harvesting and soil-shoveling section, a potato transporting and impurity-removing section, a traction frame 1, a steering cylinder 6, a main gearbox 27, a hydraulic master pump 2, a transverse support 4, a lifting cylinder 3, a potato storage box 8, a platform 11, a longitudinal ring conveyor chain 18, and a power transmission section. The frame 24 has a rectangular frame structure, with the traction frame 1, steering cylinder 6, main gearbox 27, and hydraulic master pump 2 located at its front end. The potato harvesting and soil-shoveling section is located at the lower front end of the frame, including: a pressing roller 23, a grass cutter, a pressing chain roller, and a ridge-raising assembly 25. The potato transporting and impurity-removing section is located at the lower middle of the frame, with a vibrating conveyor chain 22, a vibrating roller 21, a waste-crushing conveyor chain 20, and a grass-following conveyor chain 16 arranged sequentially from front to back. The transverse support 4, the lifting cylinder 3, and the potato storage box are arranged sequentially from front to back on the upper part of the frame. 8. Platform 11 and longitudinal ring conveyor chain 18. The longitudinal ring conveyor chain is equipped with a waste discharge conveyor chain 15 and a clean potato conveyor chain 12. The front end of the clean potato conveyor chain is equipped with a potato discharge angle adjustment chain 9, which is adjusted by a hydraulic cylinder. The clean potato conveyor chain is fixed above the platform 11. A waste chute 10 is set on the railing of the platform. The frame is equipped with a traveling wheel. Lifting cylinders 5 and opening and closing cylinders are set on both sides of the potato storage box. One side plate of the potato storage box 8 is a loading conveyor chain 33. The loading conveyor chain is integrated with the bottom conveyor chain of the potato storage box. After the opening and closing cylinder is opened, the loading conveyor chain opens and closes 90° and is in a straight state with the bottom conveyor chain of the box. Loading conveyor chain side plates 34 are set on both sides of the loading conveyor chain, which are matched with the opening and closing of the potato storage box. The power of the conveyor chain is provided by the loading chain motor 7 set on the upper outer side of the loading conveyor chain 33. The opening of the potato storage box corresponds to the potato discharge angle adjustment chain 9.

[0023] The longitudinal circular conveyor chain (see) Figure 4 A tray is set on the outer ring chain, and a proximity chain 32 is set on the inner ring chain. The proximity chain is adapted to the tray on the outer ring chain to complete the conveying of clean potatoes until the potatoes fall onto the clean potato conveying chain.

[0024] The power transmission section consists of two transmission methods. One method includes a main gearbox 27, a secondary gearbox 17, and a universal coupling. The main gearbox 27 is connected to the corner box via a belt. The corner box transmits power to the secondary gearbox 17 via the universal coupling. The secondary gearbox transmits power to the vibrating conveyor chain 22, the crushing conveyor chain 20, and the grass-fed conveyor chain 16 via shafts and sprockets. The other method is a hydraulic transmission method, including a hydraulic master pump 2, a hydraulic oil tank 28, a filter 29, a radiator 30, a hydraulic distribution valve 31, a waste discharge motor 26, a clean potato chain motor 13, a loading chain motor 7, and various hydraulic cylinders. The main gearbox transmits power to the hydraulic master pump 2, which in turn transmits power to the hydraulic distribution valve 31. The hydraulic distribution valve then transmits power to the waste discharge motor 26, the clean potato chain motor 13, the loading chain motor 7, and various hydraulic cylinders.

[0025] The grass-following conveyor chain 16 is provided with a grass-following fence 19 at its tail.

[0026] The frame is equipped with outriggers at the front for easy use when parking.

[0027] During operation, first connect the tractor to the traction frame, adjust the steering cylinder, and connect the tractor's power output to the universal joint of the main gearbox. Then, start all power transmission and hydraulic transmission components and adjust them to the appropriate operating gear. Adjust the lifting cylinder until the desired soil-moving depth is reached before continuous operation. When the storage box is full, stop the machine and move the transport vehicle to the corresponding position on the side of the machine. Open the opening and closing cylinder to rotate the loading conveyor chain 90° so that it is aligned with the bottom conveyor chain of the storage box. Then, start the loading chain motor 7 to start the conveyor chain. Cleaned potatoes are transported from the storage box to the transport vehicle. If the transport vehicle is high, the lifting cylinder can be opened to raise and tilt the entire storage box to ensure clean potato output. The storage box should be in the raised position as follows: Figure 6 As shown.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pull-type potato harvester comprising: The frame (24), the potato collecting and soil removing part, the potato transporting and impurity removing part, the traction frame (1), the steering oil cylinder (6), the main gearbox (27), the hydraulic pump (2), the transverse support (4), the lifting oil cylinder (3), the potato storage box (8), the platform (11), the longitudinal ring type conveying chain (18) and the power transmission part are characterized in that: the frame (24) is a rectangular frame structure, the traction frame (1), the steering oil cylinder (6), the main gearbox (27) and the hydraulic pump (2) are arranged at the front end of the frame, the potato collecting and soil removing part is arranged at the lower part of the front end of the frame, the potato collecting and soil removing part comprises a ridge roller (23), a grass cutting knife, a chain pressing roller and a ridge lifting assembly (25), the potato transporting and impurity removing part is arranged at the middle part of the lower part of the frame, the vibration conveying chain (22), the vibration roller (21), the impurity rolling conveying chain (20) and the grass following conveying chain (16) are sequentially arranged from front to back, the transverse support (4), the lifting oil cylinder (3), the potato storage box (8), the platform (11) and the longitudinal ring type conveying chain (18) are sequentially arranged from front to back at the upper part of the frame, the impurity conveying chain (15) and the clean potato conveying chain (12) are arranged in the longitudinal ring type conveying chain, the clean potato conveying chain is provided with the potato discharging angle adjusting chain (9) at the front end, the angle is adjusted by the hydraulic cylinder, the clean potato conveying chain is fixed in the air above the platform (11), the impurity chute (10) is arranged on the guardrail of the platform, the walking wheel is arranged below the frame, the lifting oil cylinder (5) and the opening and closing oil cylinder are arranged on both sides of the potato storage box, one side plate of the potato storage box (8) is the loading conveying chain (33), the loading conveying chain is integrally arranged with the conveying chain at the bottom of the potato storage box, the loading conveying chain is opened and closed by 90° with the conveying chain at the bottom of the potato storage box in a flat state after the opening and closing oil cylinder is opened, the loading conveying chain side plate (34) is arranged on both sides of the loading conveying chain, which is matched with the opening and closing of the potato storage box, the power of the conveying chain is provided by the loading chain motor (7) arranged on the upper outer side of the loading conveying chain (33), and the opening of the potato storage box corresponds to the potato discharging angle adjusting chain (9).

2. The self-propelled potato combine of claim 1, characterized in that: The longitudinal ring type conveying chain is provided with a supporting plate on the outer circumferential ring chain and a close chain (32) on the inner circumference, the close chain is matched with the supporting plate on the outer circumferential ring chain to complete the clean potato conveying until the potatoes fall on the clean potato conveying chain.

3. The self-propelled potato harvester of claim 1, wherein: The power transmission part is composed of two transmission modes, one transmission mode comprises the main gearbox (27), the auxiliary gearbox (17) and the universal joint, the main gearbox (27) is connected with the corner box through a belt, the corner box transmits power to the auxiliary gearbox (17) through the universal joint, and the auxiliary gearbox transmits power to the vibration conveying chain (22), the impurity rolling conveying chain (20) and the grass following conveying chain (16) through a shaft and a sprocket, and the other transmission mode is a hydraulic transmission mode, which comprises the hydraulic pump (2), the hydraulic oil tank (28), the filter (29), the radiator (30), the hydraulic distribution valve (31), the impurity discharging motor (26), the clean potato chain motor (13), the loading chain motor (7) and various hydraulic cylinders, the main gearbox transmits power to the hydraulic pump (2), the hydraulic pump (2) transmits power to the hydraulic distribution valve (31), and the hydraulic distribution valve transmits power to the impurity discharging motor (26), the clean potato chain motor (13), the loading chain motor (7) and various hydraulic cylinders.

4. The pull-type potato harvester of claim 1, characterized by: The tail of the grass conveying chain (16) is provided with a grass fence (19).

5. The self-propelled potato harvester of claim 1, wherein: The lower front part of the frame is provided with a support leg.

Citation Information

Patent Citations

  • Potato ton bag combine harvester

    CN215683367U