A potato soil separation device for a potato harvester
By designing a potato-soil separation device with spiral blade conveying and sliding seat drive on a potato harvester, the problem of uneven potato harvesting was solved, achieving automated uniform shaking and improving harvesting efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 培黎职业学院
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-30
AI Technical Summary
In the process of separating potatoes from soil, existing potato harvesters often result in uneven distribution of potatoes within the collection basket, requiring manual leveling, which is cumbersome and inefficient.
Design a potato soil separation device for a potato harvester. The device uses spiral blades to transport potatoes and drives the collection frame to move back and forth through a sliding seat and limiting components, so as to achieve uniform shaking of the potatoes and avoid manual leveling.
It improved the uniformity and efficiency of potato storage, reduced manual labor, and increased labor efficiency.
Smart Images

Figure CN224419387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural equipment technology, and in particular to a potato soil separation device for a potato harvester. Background Technology
[0002] Potatoes are a major crop in my country, especially in mountainous and hilly areas. They are both a staple and a cash crop, exhibiting unique advantages in deep processing. Besides being consumed as a vegetable, potatoes can be processed into starch, strips, slices, mashed potatoes, dextrin, vermicelli, etc., possessing high economic value and serving as a major source of income for farmers in central and western China. However, with the expansion of planting areas, potato harvesting has become a significant problem. Previously, manual harvesting was used, which was labor-intensive and inefficient. In recent years, potato harvesters have been increasingly adopted in agricultural production, greatly reducing the burden on workers.
[0003] Most existing technologies use vibrating screens to separate potatoes from soil, while some small harvesters directly separate potatoes from soil using rotating drums. The separated potatoes fall directly into a collection basket placed at the drum's discharge port. However, the potatoes fall in roughly the same position, resulting in uneven distribution of potatoes in the collection basket. This requires manual spreading of the potatoes to ensure the utilization rate of the collection basket, which is cumbersome. Utility Model Content
[0004] The purpose of this invention is to provide a potato soil separation device for a potato harvester in order to solve the above-mentioned problems.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] A potato soil separation device for a potato harvester includes a frame, a rotating drum rotatably connected to the frame via an mounting assembly, spiral blades fixedly connected between the inner walls of the rotating drum, a drive assembly on the frame for driving the rotating drum to rotate, a collection mechanism at the discharge port of the rotating drum, the collection mechanism including a base plate fixedly connected to the frame, a collection frame placed on top of the base plate, a sliding seat slidably connected to the top of the base plate, the collection frame placed on top of the sliding seat, a limit assembly on top of the sliding seat for limiting the collection frame, and a power assembly on the base plate for driving the sliding seat to move the collection frame back and forth.
[0007] Preferably, the limiting component includes multiple sets of limiting rods, which are inserted into the top of the sliding seat and distributed on both sides of the storage frame.
[0008] Preferably, the power assembly includes a stepper motor fixedly connected to the bottom of the base plate, a turntable fixedly connected to the output shaft of the stepper motor, a connecting rod hinged between the top of the turntable and the sliding seat, and the end of the connecting rod that is hinged to the turntable being eccentrically set.
[0009] Preferably, the mounting assembly includes two mounting bases fixedly connected to the top of the frame, a rotating shaft rotatably connected between the two mounting bases, and a rotating cylinder fixedly connected to the outer wall of the rotating shaft by a number of spokes.
[0010] Preferably, the drive assembly includes a mounting bracket fixedly connected to the top of the frame, a rotary motor fixedly connected to the mounting bracket, and a belt connecting the output shaft of the rotary motor and the rotary shaft via pulleys.
[0011] Preferably, the collecting mechanism further includes a connecting frame, which is fixedly connected to the frame, and a base plate is fixedly connected to the bottom of the connecting frame.
[0012] Preferably, the middle part of the rotating drum is composed of several interlaced steel bars, with the gaps between the steel bars forming the screen gaps.
[0013] The beneficial effects are as follows: a sliding seat is slidably connected to the base plate, the storage box is placed on the sliding seat, the storage box is limited by the limiting component, and the sliding seat is driven by the power component to move the storage box back and forth, so that the potatoes in the storage box are shaken evenly, avoiding manual flattening and improving efficiency.
[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of the potato soil separation device for a potato harvester according to the present invention;
[0017] Figure 2 This is a front view of the potato soil separation device of a potato harvester according to the present invention;
[0018] Figure 3 This is a top view of the potato soil separation device of a potato harvester according to the present invention;
[0019] Figure 4 This is a right view of the potato soil separation device of a potato harvester according to the present invention.
[0020] The reference numerals in the attached drawings are explained as follows: 1. Frame; 101. Mounting base; 102. Rotating shaft; 103. Rotary drum; 104. Spiral blade; 201. Mounting bracket; 202. Rotary motor; 203. Belt; 301. Connecting bracket; 302. Base plate; 303. Storage frame; 401. Sliding seat; 402. Limiting rod; 403. Stepper motor; 404. Turntable; 405. Connecting rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, all electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.
[0023] The present invention will be further described below with reference to the accompanying drawings:
[0024] like Figures 1-4 As shown, a potato soil separation device for a potato harvester includes a frame 1. A rotating drum 103 is rotatably connected to the frame 1 via an installation assembly. The middle part of the rotating drum 103 is composed of several interlaced steel bars, which form a soil screening gap to facilitate the separation of soil and potatoes. Spiral blades 104 are fixedly connected to the inner wall of the rotating drum 103 to convey potatoes. The installation assembly includes two mounting seats 101 fixedly connected to the top of the frame 1. A rotating shaft 102 is rotatably connected between the two mounting seats 101. The outer wall of the rotating shaft 102 is fixedly connected to the rotating drum 103 via several spokes.
[0025] The frame 1 is also equipped with a drive assembly, which is used to drive the rotating drum 103 to rotate. The drive assembly includes a mounting bracket 201 fixedly connected to the top of the frame 1. A rotary motor 202 is bolted to the mounting bracket 201. A belt 203 is connected between the output shaft of the rotary motor 202 and the rotating shaft 102 through a pulley. When the rotary motor 202 is started, the rotating shaft 102 is driven to rotate the rotating drum 103 and the spiral blade 104 through the transmission between the pulley and the belt 203.
[0026] A collection mechanism is provided at the discharge port of the rotary drum 103. The collection mechanism includes a base plate 302 fixedly connected to the frame 1 and a connecting frame 301. The connecting frame 301 is fixedly connected to the frame 1, and the base plate 302 is fixedly connected to the bottom of the connecting frame 301. A storage frame 303 is placed on the top of the base plate 302. A sliding seat 401 is slidably connected to the top of the base plate 302. The storage frame 303 is placed on the top of the sliding seat 401. A limiting component is provided on the top of the sliding seat 401. The limiting component is used to limit the storage frame 303. The limiting component includes multiple sets of limiting rods 402. The limiting rods 402 are inserted into the top of the sliding seat 401 and are distributed on both sides of the storage frame 303.
[0027] A power assembly is also provided on the base plate 302. The power assembly is used to drive the sliding seat 401 to move the storage frame 303 back and forth. The power assembly includes a stepper motor 403 fixedly connected to the bottom of the base plate 302. A turntable 404 is fixedly connected to the output shaft of the stepper motor 403. A connecting rod 405 is hinged between the top of the turntable 404 and the sliding seat 401. The end of the connecting rod 405 that is hinged to the turntable 404 is eccentrically set.
[0028] Working principle: In use, the potato-soil separation device is fixed to a suitable position on the harvester via frame 1. The potatoes and soil dug out by the harvester are pushed into the rotating drum 103. The rotary motor 202 is started, and the rotating shaft 102 drives the rotating drum 103 to rotate through the transmission between the pulley and belt 203. The soil is sieved out through the soil screening gap in the middle of the rotating drum 103, while the potatoes fall into the collection frame 303 placed at the discharge port of the rotating drum 103 under the conveying of the spiral blades 104. The potatoes are then harvested. Before harvesting potatoes, the storage frame 303 is placed on the sliding seat 401 and locked between the limiting rods 402. The limiting rods 402 limit the storage frame 303. When harvesting potatoes, the stepper motor 403 is started, which drives the turntable 404 to rotate. As the turntable 404 rotates, it drives the sliding seat 401 to move the storage frame 303 back and forth through the connecting rod 405, shaking the potatoes in the storage frame 303 evenly, avoiding manual leveling and improving efficiency.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A potato-soil separation device of a potato harvester, comprising a frame (1), a rotating drum (103) is rotatably connected to the frame (1) through a mounting assembly, helical blades (104) are fixedly connected between inner walls of the rotating drum (103), a driving assembly is further arranged on the frame (1), the driving assembly is used for driving the rotating drum (103) to rotate, a collecting mechanism is arranged at a discharge port of the rotating drum (103), the collecting mechanism comprises a bottom plate (302) fixedly connected to the frame (1), and a receiving frame (303) is placed on a top of the bottom plate (302), characterized in that: A sliding seat (401) is slidably connected to the top of the base plate (302). The storage frame (303) is placed on the top of the sliding seat (401). A limiting component is provided on the top of the sliding seat (401) to limit the storage frame (303). A power component is also provided on the base plate (302) to drive the sliding seat (401) to move the storage frame (303) back and forth. 2. The potato soil separation device for a potato harvester according to claim 1, characterized in that: The limiting component includes multiple sets of limiting rods (402), which are inserted into the top of the sliding seat (401) and distributed on both sides of the storage frame (303).
3. The potato soil separation device for a potato harvester according to claim 1, characterized in that: The power assembly includes a stepper motor (403) fixedly connected to the bottom of the base plate (302). A turntable (404) is fixedly connected to the output shaft of the stepper motor (403). A connecting rod (405) is hinged between the top of the turntable (404) and the sliding seat (401). The end of the connecting rod (405) that is hinged to the turntable (404) is eccentrically set.
4. The potato soil separation device for a potato harvester according to claim 1, characterized in that: The mounting assembly includes two mounting bases (101) fixedly connected to the top of the frame (1), and a rotating shaft (102) is rotatably connected between the two mounting bases (101). The outer wall of the rotating shaft (102) is fixedly connected to the rotating cylinder (103) by a number of spokes.
5. The potato soil separation device for a potato harvester according to claim 4, characterized in that: The drive assembly includes a mounting bracket (201) fixedly connected to the top of the frame (1), a rotary motor (202) fixedly connected to the mounting bracket (201), and a belt (203) connected between the output shaft of the rotary motor (202) and the rotating shaft (102) via a pulley.
6. The potato soil separation device for a potato harvester according to claim 1, characterized in that: The collection mechanism also includes a connecting frame (301), which is fixedly connected to the frame (1), and the base plate (302) is fixedly connected to the bottom of the connecting frame (301).
7. The potato soil separation device for a potato harvester according to claim 1, characterized in that: The middle part of the rotating drum (103) is composed of several interlaced steel bars, and the gaps between the steel bars form the soil screening gaps.