Small three-wheel thresher

Abstract

The utility model provides a small three-wheel thresher which is smaller in passable road width, more convenient to use and move in mountainous areas and good in supporting stability during working, and relates to the technical field of threshers. The small three-wheel thresher comprises a thresher body, supporting legs are arranged at the front end of the thresher body, a roller supporting structure is arranged at the rear end of the thresher body, the roller supporting structure comprises two side wheels arranged on the two sides of the thresher body respectively and a middle wheel arranged between the two side wheels, and the middle wheel is arranged at the front ends of the side wheels. And the supporting legs are positioned between the supporting legs and the side wheels. The small three-wheel thresher can run on a narrower road, solves the problem that an existing small three-wheel thresher is inconvenient to use and move in a mountainous area, and is more suitable for being used in the mountainous area.

Description

Technical Field

[0001] This utility model relates to the field of threshing machine technology, specifically a small three-wheel threshing machine. Background Technology

[0002] In mountainous agricultural production, various small threshers without motorized propulsion are needed, such as rice threshers and rapeseed threshers. These small threshers generally need to be moved to the crop harvesting site, i.e., the field edge, during use.

[0003] In mountainous areas, due to the rugged, narrow, and varied road conditions, transport equipment is difficult to navigate, and threshers are generally transported to the site manually. Since small threshers typically weigh over 100 kilograms, and rural areas face labor shortages, transporting threshers is difficult. To facilitate movement, some small threshers are now equipped with rollers, allowing for easier and less strenuous movement to the harvesting site. To ensure greater stability during operation, existing roller-type small threshers generally have a support frame at one end and rollers at the other. When placed, the thresher is supported by both the support frame and rollers on the ground. To move it, the thresher is easily moved by lifting the end with the support frame using a handle. To ensure stability during operation, existing roller-type small threshers use a two-wheel structure design. However, the applicant found that existing threshers with a two-wheel structure design require a relatively wide road and are difficult to pass through narrow roads in mountainous areas where the width is less than the distance between the two wheels, resulting in inconvenience in use and movement in mountainous areas. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a small three-wheeled thresher that requires less road width, is more convenient to move in mountainous areas, and has good support stability during operation.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a small three-wheel threshing machine, including a threshing machine body, a support foot at the front end of the threshing machine body, and a roller support structure at the rear end. The roller support structure includes two side wheels respectively disposed on both sides of the threshing machine body and an intermediate wheel disposed between the two side wheels. The intermediate wheel is disposed at the front end of the side wheels and is located between the support foot and the side wheels.

[0006] Furthermore, the side wheel includes a side wheel body and a mounting bearing disposed at the center of the side wheel body. The side wheel body is sleeved on the outer ring of the mounting bearing and is fixedly connected to the outer ring of the mounting bearing.

[0007] The thresher body is equipped with a horizontally arranged side wheel mounting shaft;

[0008] The two side wheels are respectively slidably fitted onto the two ends of the side wheel mounting shaft through the inner ring of the mounting bearing at its center. The outer side of the mounting bearing is provided with a nut that is threadedly connected to the side wheel mounting shaft through its thread. The mounting bearing is pressed and fixed on the side wheel mounting shaft by the corresponding nut abutting against its inner ring.

[0009] Furthermore, handles are provided on both sides of the front end of the threshing machine body.

[0010] Furthermore, push handles are provided on both sides of the rear end of the threshing machine body.

[0011] Furthermore, the push handle is set at a higher height than the pull handle.

[0012] Furthermore, the push handle and pull handle are respectively connected to the thresher body using a detachable structure.

[0013] The beneficial effects of this utility model are as follows: When the small three-wheeled thresher of this utility model is working, it can achieve multi-point support and stable support through the support foot 2, the middle wheel 32 and the two side wheels 31. When the road width is greater than the wheel distance between the two side wheels, it can move by relying on the two side wheels for support. When the road width is less than the wheel distance between the two side wheels, it can move by relying on the middle wheel for independent support. Therefore, it can travel on narrower roads, solving the problem of inconvenient movement of existing small three-wheeled threshers in mountainous areas, and is more suitable for use in mountainous areas. Attached Figure Description

[0014] Figure 1 This is a perspective view of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the installation structure of the side wheel;

[0017] The figure shows: threshing machine body 1, support foot 2, side wheel mounting shaft 4, nut 5, handle 11, push handle 12, side wheel 31, intermediate wheel 32, side wheel body 311, and mounting bearing 312. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1 , Figure 2As shown, the small three-wheeled threshing machine of this utility model includes a threshing machine body 1. The front end of the threshing machine body 1 is provided with a support foot 2, and the rear end is provided with a roller support structure. The roller support structure includes two side wheels 31 respectively disposed on both sides of the threshing machine body 1, and an intermediate wheel 32 disposed between the two side wheels 31. The intermediate wheel 32 is disposed at the front end of the side wheels 31 and is located between the support foot 2 and the side wheels 31. The intermediate wheel 32 and the two side wheels 31 form a triangular support structure.

[0020] It is understandable that the intermediate wheel 32 is generally positioned as centrally as possible between the two side wheels 31. In this embodiment of the present invention, the intermediate wheel 32 is positioned centrally between the two side wheels 31.

[0021] This utility model's three-wheeled thresher moves by lifting the front end of the thresher body 1, causing the lower end of the support foot 2 to leave the ground, allowing for easy forward movement. The three-wheeled thresher features a three-wheel support structure at the rear end of the thresher body 1, consisting of a middle wheel 32 and two side wheels 31. The middle wheel 32 is positioned at the front end of the side wheels 31 and between the support foot 2 and the side wheels 31. This allows movement when the road width is greater than the wheelbase of the side wheels, while the middle wheel provides independent support when the road width is less. Therefore, it can travel on narrower roads and is more suitable for use in mountainous areas. When the thresher is working, multi-point support and stable operation are achieved through the support foot 2, the middle wheel 32, and the two side wheels 31.

[0022] The intermediate wheel 32 can be mounted on the threshing machine body 1 by means of a shaft located at its center and rotating therewith. The shaft can be connected to the threshing machine body 1 by welding or bolting.

[0023] The side wheels 31 can be installed using various existing methods for mounting the rear wheels of a trolley. Because the side wheels 31 cannot touch the ground when the road width is less than the wheelbase, they will hang to the sides of the road during travel, potentially colliding with objects on either side and obstructing the threshing machine's movement. Therefore, when the threshing machine travels on roads narrower than the wheelbase, the side wheels 31 generally need to be removed first. To facilitate quick disassembly and installation of the side wheels 31, this invention employs the following structure for mounting the side wheels: [e.g., ...] Figure 3As shown, the lateral wheel 31 includes a lateral wheel body 311 and a mounting bearing 312 disposed at the center of the lateral wheel body 311. The lateral wheel body 311 is sleeved on the outer ring of the mounting bearing 312 and is fixedly connected to the outer ring of the mounting bearing 312. A lateral wheel mounting shaft 4 is installed on the threshing machine body 1 in a transverse direction (from one side of the threshing machine body to the other side). The two lateral wheels 31 are respectively slidably sleeved on both ends of the lateral wheel mounting shaft 4 through the inner ring of the mounting bearing 312 at their center. The outer side of the mounting bearing 312 is provided with a nut 5 that is threadedly connected to the lateral wheel mounting shaft 4. The mounting bearing 312 is pressed and fixed on the lateral wheel mounting shaft 4 by the corresponding nut 5 abutting against its inner ring. Thus, when it is necessary to disassemble the lateral wheel, only the outer nut 5 needs to be removed to slide the mounting bearing 312 and the lateral wheel body 311 out together, thereby completing the disassembly of the lateral wheel. The above structure facilitates the disassembly and installation of the lateral wheel. To prevent nut 5 from loosening and falling off, a cotter pin can be provided on the outside of nut 5 as needed.

[0024] The wheel body 311 can be fixedly connected to the outer ring of the bearing 312 by welding, interference fit, or by setting baffles on both sides of the outer ring to snap the outer ring into the baffles on both sides.

[0025] To facilitate the movement of the thresher, handles 11 are provided on both sides of the front end of the thresher body 1. The thresher of this invention also has push handles 12 on both sides of the rear end of the thresher body, allowing personnel to apply force through the push handles 12 to move the thresher forward.

[0026] The push handle 12 and the pull handle 11 can be set at the same or different heights. In this invention, preferably, the push handle 12 is set at a higher height than the pull handle 11. In this way, when the front end of the threshing machine is lifted and dragged by the pull handle 11, the rear end of the push handle 12 can be lowered, making it easier for personnel to grip and apply force.

[0027] The push handle 12 and pull handle 11 can be installed on the threshing machine body 1 using either a detachable or non-detachable connection. Detachable connections can specifically employ bolt connections, plug-in connections, snap-fit ​​connections, etc. Non-detachable connections can be achieved through welding, etc. In this invention, the push handle 12 and pull handle 11 are respectively connected to the threshing machine body 1 using a detachable structure. This allows the push handle 12 and pull handle 11 to be disassembled when not in use, reducing the space occupied by the threshing machine.

Claims

1. A small three-wheeled threshing machine, comprising a threshing machine body (1), wherein the front end of the threshing machine body (1) is provided with a support foot (2) and the rear end is provided with a roller support structure, characterized in that: The roller support structure includes two side wheels (31) respectively disposed on both sides of the threshing machine body (1) and an intermediate wheel (32) disposed between the two side wheels (31). The intermediate wheel (32) is disposed at the front end of the side wheels (31) and is located between the support foot (2) and the side wheels (31).

2. The small three-wheel threshing machine as described in claim 1, characterized in that: The side wheel (31) includes a side wheel body (311) and a mounting bearing (312) disposed at the center of the side wheel body (311). The side wheel body (311) is sleeved on the outer ring of the mounting bearing (312) and is fixedly connected to the outer ring of the mounting bearing (312). The threshing machine body (1) is equipped with a horizontally arranged side wheel mounting shaft (4); The two side wheels (31) are slidably mounted on both ends of the side wheel mounting shaft (4) through the inner ring of the mounting bearing (312) at their center. The outer side of the mounting bearing (312) is provided with a nut (5) that is threadedly connected to the side wheel mounting shaft (4) through its thread. The mounting bearing (312) is pressed and fixed on the side wheel mounting shaft (4) by the corresponding nut (5) abutting against its inner ring.

3. The small three-wheel threshing machine as described in claim 1, characterized in that: The thresher body (1) is provided with handles (11) on both sides of the front end.

4. The small three-wheeled threshing machine as described in claim 3, characterized in that: Push handles (12) are provided on both sides of the rear end of the threshing machine body (1).

5. The small three-wheel threshing machine as described in claim 4, characterized in that: The push handle (12) is set at a higher height than the pull handle (11).

6. The small three-wheeled threshing machine as described in claim 4, characterized in that: The push handle (12) and pull handle (11) are respectively connected to the thresher body (1) with a detachable structure.

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