Anti-winding device for green onion harvester
By installing an anti-grass entanglement device on the scallion harvester and using a rotating drum to throw away the weeds, the problem of easy entanglement of the digging mechanism was solved, and the harvesting efficiency was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 青岛益居锋农业机械制造有限公司
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-14
AI Technical Summary
During the harvesting process, the digging mechanism of the scallion harvester is prone to getting tangled in weeds, which affects the harvesting efficiency.
Install an anti-tangling device on the scallion harvester. The rotating drum drives the weeds to the sides through the drive shaft to avoid tangling.
This effectively prevents weeds from tangling with the digging mechanism, thus improving the efficiency of scallion harvesting.
Smart Images

Figure CN224482178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scallion harvester technology, specifically to an anti-grass entanglement device for scallion harvesters. Background Technology
[0002] As an automated agricultural machinery, the scallion harvester is mainly used for harvesting crops such as scallions and ginger. By replacing traditional manual labor with mechanized operations, it achieves high efficiency and automation in the harvesting process.
[0003] Currently, commonly used scallion harvesters generally employ a tracked chassis as their transport vehicle, with a vibratory digging mechanism mounted at the rear of the chassis. During harvesting, the tracked chassis moves between rows of scallions, while the vibratory digging mechanism uses a drive shaft to drive the digging teeth via an eccentric wheel transmission mechanism, achieving simultaneous digging and soil shaking, thus enabling efficient scallion harvesting.
[0004] However, in the actual operation of the scallion harvester, the digging mechanism and its transmission mechanism often get entangled in weeds, requiring the weeds to be cleared from time to time during the scallion harvesting process, thus affecting the efficiency of scallion harvesting. Utility Model Content
[0005] The purpose of this utility model is to provide an anti-grass entanglement device for scallion harvesters, which solves the problem that the digging mechanism of scallion harvesters is easily entangled with weeds during the harvesting process.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-grass entanglement device for a scallion harvester, wherein the base is fixed on both sides of the frame of the rear drive shaft of the scallion harvester; the driving wheel is located at the front end of the top of the base and is connected to the rear drive shaft of the scallion harvester; the driven wheel is located at the rear end of the top of the base and is connected to the driving wheel; and a rotating drum is rotatably connected to the rear end of the outer wall of the base near the top end, and the top end is connected to the driven wheel through a bevel gear meshing mechanism.
[0007] Preferably, the front and rear ends of the top surface of the base are respectively fixed with axle seat one and axle seat two to support the driving wheel and the driven wheel.
[0008] Preferably, the driving wheel includes a shaft body rotatably mounted on the top of the first shaft seat and fixedly connected to the outer end of the rear drive shaft of the scallion harvester, and a sprocket fixedly mounted on the outer end of the first shaft body. The driven wheel includes a shaft body rotatably mounted on the top of the second shaft seat, a sprocket fixedly mounted in the middle of the second shaft body, and a bevel gear fixedly mounted on the outer end of the second shaft body. A chain is connected between the sprocket and the sprocket. The top of the rotating drum is fixedly mounted with a bevel gear that meshes with the bevel gear.
[0009] Preferably, a bearing seat three is fixed to the rear end of the outer side wall of the base, and the rotating roller includes a vertical shaft rod rotatably sleeved on the bearing seat three near the top position and a vertical roller connected to the bottom of the vertical shaft rod, and the bevel gear two is fixedly sleeved on the top end of the vertical shaft rod.
[0010] Preferably, the bottom end of the vertical shaft is fixedly connected to a prism, the center of the vertical roller is slidably fitted onto the prism through the prism cavity, the bottom center of the vertical roller is fixedly provided with a supporting short shaft, and the bottom end of the supporting short shaft is rotatably fitted with a supporting seat.
[0011] Preferably, the outer peripheral wall of the vertical roller is uniformly fixed with a plurality of vertical rods that extend vertically.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The anti-weed-entanglement device for scallion harvesters disclosed in this utility model utilizes the harvester's own drive shaft to rotate the rotating drums on both sides, thereby throwing the weeds to the sides and effectively solving the problem of weeds getting entangled in the digging mechanism during the harvesting process of scallions. Attached Figure Description
[0014] Figure 1 This is a side view of the anti-grass entanglement device of this utility model;
[0015] Figure 2 This is a three-dimensional structural diagram of the rotating drum of this utility model.
[0016] In the diagram: 1-Base; 1.1-Shaft seat one; 1.2-Shaft seat two; 1.3-Shaft seat three;
[0017] 2-Drive wheel; 2.1-Shaft 1; 2.2-Sprocket 1;
[0018] 3-Driven gear; 3.1-Shaft II; 3.2-Sprocket II; 3.3-Bevel gear I;
[0019] 4-Rotating roller; 4.1-Vertical shaft; 4.2-Vertical roller; 4.3-Vertical rod; 4.4-Pyramid; 4.5-Short supporting shaft;
[0020] 5-Chain;
[0021] 6-Bevel gear II;
[0022] 7-Support base. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-2 This utility model provides a technical solution: an anti-tangle device for a scallion harvester. The base 1 is fixed to the two side frames of the rear drive shaft of the scallion harvester by bolt connection or welding. The front and rear ends of the top surface of the base 1 are respectively fixed with bearing seat 1.1 and bearing seat 1.2, and the rear end of the outer side wall of the base 1 is fixed with bearing seat 1.3. Bearings are respectively assembled in bearing seat 1.1, bearing seat 1.2 and bearing seat 1.3.
[0025] The drive wheel 2 includes a shaft body 2.1, which is fitted in the middle of the top bearing of the shaft seat 1.1 and whose inner end is fixedly connected to the outer end of the drive shaft at the rear of the scallion harvester, and a sprocket 2.2, which is fixedly fitted in the outer end of the shaft body 2.1.
[0026] Driven wheel 3 includes a shaft 3.1 whose inner end is fitted into the top bearing of shaft seat 2.2, a sprocket 3.2 fixedly fitted in the middle of shaft 3.1, and a bevel gear 3.3 fixedly fitted in the outer end of shaft 3.1. The position of sprocket 3.2 is directly opposite to the position of sprocket 2.2.
[0027] Chain 5 is connected between sprocket 1 (2.2) and sprocket 2 (3.2).
[0028] The rotating drum 4 includes a vertical shaft 4.1 that is rotatably fitted into a bearing in a bearing seat 1.3 near the top end, and a vertical drum 4.2 connected to the bottom of the vertical shaft 4.1. A bevel gear 6 is fixedly fitted onto the top end of the vertical shaft 4.1.
[0029] In summary, when harvesting scallions using a scallion harvester, the drive shaft drives the digging teeth to move through the eccentric wheel transmission mechanism. While digging scallions, the drive shaft also drives the sprocket 2.2 to rotate through shaft 2.1. The sprocket 2.2 drives the driven wheel 3 to rotate as a whole through the chain 5 and the sprocket 3.2.
[0030] The bevel gear 3.3 meshes with the bevel gear 6, causing the rotating drum 4 to rotate as a whole. As the vertical drum 4.2 rotates, it throws weeds and other debris to both sides. The vertical drums 4.2 are positioned in front of the digging teeth, thus preventing weeds from entangled in the digging mechanism.
[0031] To improve the ability of the vertical roller 4.2 to capture weeds, multiple vertical rods 4.3 extending vertically are evenly fixed on the outer peripheral wall of the vertical roller 4.2.
[0032] In addition, to improve the overall support for the rotating drum 4, a prism 4.4 is fixedly connected to the bottom end of the vertical shaft 4.1. The vertical drum 4.2 is slidably fitted onto the prism 4.4 through the prism cavity at its axis. A supporting short shaft 4.5 is fixed to the center of the bottom end of the vertical drum 4.2, and a support seat 7 is rotatably fitted to the bottom end of the supporting short shaft 4.5. The support seat 7 is fixed to the bottom of the lifting structure of the rear digging mechanism. When digging for scallions, the hydraulic cylinder pushes the lifting structure downward, causing the vertical drum 4.2 to slide downward relative to the prism 4.4, so that the vertical drum 4.2 is located in front of the digging teeth.
[0033] It should be noted that in this article, relational terms such as first and second are only used to refer to...
[0034] Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An anti-tangle device for a scallion harvester, characterized in that, include: The base (1) is fixed on both sides of the frame of the rear drive shaft of the scallion harvester; The drive wheel (2) is located at the top front end of the base (1) and is connected to the rear drive shaft of the scallion harvester. Driven wheel (3) is located at the rear end of the top of the base (1) and is connected to the driving wheel (2) in a transmission manner; The rotating drum (4) is rotatably connected to the rear end of the outer wall of the base (1) near the top, and its top end is connected to the driven wheel (3) through a bevel gear meshing mechanism.
2. The anti-tangle device for scallion harvesters according to claim 1, characterized in that: The front and rear ends of the top surface of the base (1) are respectively fixed with axle seat one (1.1) and axle seat two (1.2) supporting the driving wheel (2) and the driven wheel (3).
3. The anti-tangle device for scallion harvesters according to claim 2, characterized in that: The driving wheel (2) includes a shaft body (2.1) that is rotatably mounted on the top of the shaft seat (1.1) and whose inner end is fixedly connected to the outer end of the rear drive shaft of the scallion harvester, and a sprocket (2.2) that is fixedly mounted on the outer end of the shaft body (2.1). The driven wheel (3) includes a shaft body (3.1) that is rotatably mounted on the top of the shaft seat (1.2), a sprocket (3.2) that is fixedly mounted on the middle of the shaft body (3.1), and a bevel gear (3.3) that is fixedly mounted on the outer end of the shaft body (3.1). A chain (5) is connected between the sprocket (2.2) and the sprocket (3.2). The top of the rotating drum (4) is fixedly mounted with a bevel gear (6) that meshes with the bevel gear (3.3).
4. The anti-tangle device for scallion harvesters according to claim 3, characterized in that: The base (1) has a bearing seat three (1.3) fixed at the rear end of its outer side wall. The rotating roller (4) includes a vertical shaft rod (4.1) rotatably sleeved on the bearing seat three (1.3) near the top end and a vertical roller (4.2) connected to the bottom of the vertical shaft rod (4.1). The bevel gear two (6) is fixedly sleeved on the top end of the vertical shaft rod (4.1).
5. The anti-tangle device for scallion harvesters according to claim 4, characterized in that: The bottom end of the vertical shaft (4.1) is fixedly connected to a prism (4.4). The vertical roller (4.2) is slidably mounted on the prism (4.4) through the prism cavity at its axis. A supporting short shaft (4.5) is fixed at the center of the bottom end of the vertical roller (4.2). A supporting seat (7) is rotatably mounted on the bottom end of the supporting short shaft (4.5).
6. The anti-tangle device for scallion harvesters according to claim 4, characterized in that: The outer peripheral wall of the vertical roller (4.2) is uniformly fixed with a plurality of vertical rods (4.3) that extend vertically.