A tractor wheel structure

Abstract

The utility model belongs to tractor wheel technical field especially relates to a tractor wheel structure, including two wheel hubs, two tires and two transmission shafts, two tires are fixedly connected outside two wheel hubs respectively, two transmission shafts are fixedly connected on one side of two wheel hubs respectively, the shell is arranged between two wheel hubs, both sides of shell are all provided with through groove, two through grooves all slide and install the moving block in, the opposite moving assembly is arranged in the inside of shell, and is used for driving two moving blocks to move oppositely, through setting above structure, the distance between two front tires can be adjusted, and the operation of adjusting is relatively simple, can match the different ridge width, the row spacing of agronomy requirement, avoids the improvement work efficiency of rolling pressure plant, and can also according to the dynamic optimization ground pressure distribution of topography change, enhances the antiskid ability of wet soft field, and then facilitates staff use.

Description

Technical Field

[0001] This utility model belongs to the field of tractor wheel technology, and in particular relates to a tractor wheel structure. Background Technology

[0002] Tractor wheels are key components that support the weight of the entire machine, transmit driving and braking forces, and adapt to complex road conditions in farmland. They are usually made of high-strength steel (such as quenched and tempered steel like 65Mn and 35CrMo) or ductile iron (QT400-18, QT600-3). After being formed by forging or casting, they need to undergo heat treatment such as quenching and tempering to improve impact resistance and wear resistance. The rim is often designed with a spoke or spoke structure to balance lightweight and strength requirements, and is equipped with anti-slip flanges or replaceable iron teeth (for soft surfaces such as mud and snow). Some modern models use pneumatic rubber tires (such as radial tires) to reduce ground pressure and improve driving stability. In special working conditions (such as paddy field operations), tubeless steel tires or studded tires may be used to enhance grip and anti-sinking performance.

[0003] For example, Chinese patent CN221698819U discloses a steel tractor wheel, including a fixed base, a first shaft rotatably mounted on the fixed base, two first motors fixedly mounted at the bottom of the fixed base, and transmission components for driving the first shaft to rotate at the output ends of the two first motors. A support frame is fixedly mounted at the bottom end of the first shaft, and a second shaft rotatably mounted at the side end of the support frame. A second motor is fixedly mounted on the support frame, and the output end of the second motor is fixedly connected to the second shaft. A mounting plate is fixedly mounted at the end of the second shaft, and the wheel body is mounted on the side end of the mounting plate. The output ends of the two first motors drive two driving gears to rotate, which in turn drive driven gears to rotate, thus achieving steering. By using two first motors for driving, the driving power is increased, the steering torque is increased, and the wheel body can be steered at multiple angles, thereby improving the operating efficiency of the automated driving tractor and adapting to various working conditions.

[0004] The aforementioned patent has the following problems: In actual use, it does not have the function of adjusting the distance between the two wheels. A fixed wheel track will cause the agricultural machinery to be unable to flexibly match the agronomical requirements of different ridge widths and row spacings, reducing the efficiency of operation; in complex terrains such as slopes and terraces, it is impossible to optimize the ground pressure distribution by adjusting the wheel track, which can easily cause local soil compaction or slippage, affecting traction stability; when facing different operating environments such as paddy fields and dry fields, a single wheel track is difficult to take into account both the anti-sinking requirements of muddy areas and the passability of hard blocks, which may aggravate tire wear or sink into soft ground, which is not conducive to the use of workers. In view of this, we propose a tractor wheel structure. Utility Model Content

[0005] The purpose of this invention is to provide a tractor wheel structure to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a tractor wheel structure, including two hubs, two tires and two drive shafts, wherein the two tires are respectively fixedly connected to the outside of the two hubs, and the two drive shafts are respectively fixedly connected to one side of the two hubs.

[0007] The housing is disposed between two hubs, and through slots are provided on both sides of the housing. Movable blocks are slidably installed inside the two through slots.

[0008] An opposing moving component is disposed inside the housing and is used to drive two moving blocks to move in opposite directions.

[0009] In this technical solution, the tractor is first lifted with a jack, causing the two front tires to leave the ground. The motor is then started, and its output drives a bidirectional screw to rotate. This, in turn, causes two threaded sleeves and four first rotating frames to move in opposite directions. Through the established first and second rotating frames and connecting rods, the movement of the four first rotating frames moves the limiting plate, bearings, drive shaft, and tires. This structure allows for adjustment of the distance between the two front tires. The adjustment operation is relatively simple and can match different ridge widths and row spacing agronomical requirements, avoiding crushing of plants and improving operational efficiency. Furthermore, it dynamically optimizes the ground pressure distribution according to terrain changes, enhancing the anti-slip and anti-sinking capabilities of soft, wet fields, thus facilitating operation for workers.

[0010] By setting a limiting plate, the moving block is prevented from detaching from the inside of the housing. The threaded sleeve is slidably installed on the inner wall of the housing, thus preventing the threaded sleeve from rotating when moving. The support plate ensures that the motor will not run idle during operation.

[0011] In the above technical solution, furthermore, each of the two movable blocks is provided with a bearing at the end away from the housing, and the two transmission shafts are respectively fixedly connected to the inner rings of the two bearings.

[0012] In this technical solution, the moving block will not rotate by using the bearings provided.

[0013] In the above technical solution, a support plate is fixedly connected to one side of the housing, and a motor is fixedly installed on the top of the support plate.

[0014] In this technical solution, the support plate ensures that the motor will not idle during operation.

[0015] In the above technical solution, furthermore, both of the two movable blocks are fixedly connected to a limiting plate on one side inside the housing.

[0016] In this technical solution, the moving block can be prevented from detaching from the interior of the housing by setting a limiting plate.

[0017] In the above technical solution, further, the opposing moving component includes a bidirectional screw, one end of which is fixedly connected to the output shaft of the motor, and the other end of which penetrates into the interior of the housing. The external thread of the bidirectional screw is connected to two symmetrically distributed threaded sleeves. A first rotating frame is fixedly connected to both sides of the two threaded sleeves, and two symmetrically distributed second rotating frames are fixedly connected to one side of the two limiting plates. The first rotating frame and the second rotating frame are fixedly connected to the same connecting rod.

[0018] In this technical solution, by starting the motor, the output end of the motor drives the bidirectional screw to rotate, which in turn drives the two threaded sleeves and the four first rotating frames to move in opposite directions. Through the set first rotating frames, second rotating frames and connecting rods, the movement of the four first rotating frames can drive the limit plate, bearing, transmission shaft and tire to move.

[0019] In the above technical solution, the two helical directions of the bidirectional screw are opposite, and the two threaded sleeves are slidably installed on the inner wall of the housing.

[0020] In this technical solution, the two helical sections of the bidirectional screw have opposite directions, which allows the two threaded sleeves to move in opposite directions. The threaded sleeves are slidably mounted on the inner wall of the housing, thereby avoiding the phenomenon of rotation of the threaded sleeves during movement.

[0021] Furthermore, in the above technical solution, the shell, moving block, limiting plate and bearing are all made of high-strength steel.

[0022] In this technical solution, the housing, moving block, limiting plate and bearing are all made of high-strength steel, which makes the housing, moving block, limiting plate and bearing compatible with this device.

[0023] The beneficial effects of this utility model are:

[0024] First, use a jack to lift the tractor so that the two front tires are off the ground. Start the motor, and the motor's output will drive the bidirectional screw to rotate. This will then cause the two threaded sleeves and four first rotating frames to move in opposite directions. Through the set first rotating frames, second rotating frames, and connecting rods, the movement of the four first rotating frames will drive the limit plate, bearings, drive shaft, and tires to move. With the above structure, the distance between the two front tires can be adjusted. The adjustment operation is relatively simple and can match the agronomic requirements of different ridge widths and row spacings, avoiding crushing of plants and improving work efficiency. It can also dynamically optimize the ground pressure distribution according to changes in terrain, enhance the anti-slip and anti-sinking ability of soft, wet fields, and thus facilitate the use of workers.

[0025] By setting a limiting plate, the moving block can be prevented from detaching from the inside of the housing. The threaded sleeve is slidably installed on the inner wall of the housing, thus preventing the threaded sleeve from rotating during movement. By setting a support plate, the motor can be prevented from spinning idly during operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the shell structure in this utility model;

[0028] Figure 3 This is a partial cross-sectional view of the shell structure in this utility model;

[0029] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0030] The markings in the diagram are as follows:

[0031] 1. Wheel hub; 2. Tire; 3. Drive shaft; 4. Housing; 5. Support plate; 6. Motor; 7. Through slot; 8. Moving block; 9. Bearing; 10. Double-acting screw; 11. Threaded sleeve; 12. First rotating frame; 13. Second rotating frame; 14. Connecting rod; 15. Limiting plate. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0033] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0034] Example 1: This example provides a tractor wheel structure, including two hubs 1, two tires 2 and two drive shafts 3. The two tires 2 are respectively fixedly connected to the outside of the two hubs 1, and the two drive shafts 3 are respectively fixedly connected to one side of the two hubs 1.

[0035] The housing 4 is located between the two hubs 1. Both sides of the housing 4 are provided with through grooves 7, and movable blocks 8 are slidably installed inside the two through grooves 7.

[0036] The opposing moving component is located inside the housing 4 and is used to drive the two moving blocks 8 to move in opposite directions.

[0037] First, a jack is used to lift the tractor, raising the two front tires 2 off the ground. Then, the motor 6 is started, and its output drives the bidirectional screw 10 to rotate. This, in turn, causes the two threaded sleeves 11 and four first rotating frames 12 to move in opposite directions. Through the first rotating frames 12, the second rotating frames 13, and the connecting rod 14, the movement of the four first rotating frames 12 moves the limiting plate 15, the bearing 9, the drive shaft 3, and the tires 2. This structure allows for adjustment of the distance between the two front tires 2. The adjustment operation is relatively simple and can match different ridge widths and row spacing agronomical requirements, avoiding crushing of plants and improving operational efficiency. Furthermore, it can dynamically optimize the ground pressure distribution according to terrain changes, enhancing the anti-slip and anti-sinking capabilities of soft, wet fields, thus facilitating use by workers.

[0038] By setting the limiting plate 15, the moving block 8 can be prevented from detaching from the inside of the housing 4. The threaded sleeve 11 is slidably installed on the inner wall of the housing 4, thus preventing the threaded sleeve 11 from not rotating when moving. By setting the support plate 5, the motor 6 can be prevented from spinning idly when working.

[0039] Example 2: This example provides a tractor wheel structure, which, in addition to the technical solutions of the above examples, also has the following technical features: bearings 9 are provided at the ends of the two moving blocks 8 away from the housing 4, and the two drive shafts 3 are respectively fixedly connected to the inner rings of the two bearings 9.

[0040] The bearing 9 ensures that the moving block 8 will not rotate.

[0041] Example 3: This example provides a tractor wheel structure, which, in addition to the technical solutions of the above examples, also has the following technical features: a support plate 5 is fixedly connected to one side of the housing 4, and a motor 6 is fixedly installed on the top of the support plate 5.

[0042] The support plate 5 ensures that the motor 6 will not idle during operation.

[0043] Example 4: This example provides a tractor wheel structure, which, in addition to the technical solutions of the above examples, also has the following technical features: the two moving blocks 8 are fixedly connected to the limiting plate 15 on one side inside the housing 4.

[0044] The limiting plate 15 prevents the moving block 8 from detaching from the interior of the housing 4.

[0045] Example 5: This example provides a tractor wheel structure. In addition to the technical solutions of the above examples, it also has the following technical features: the opposing moving component includes a bidirectional screw 10. One end of the bidirectional screw 10 is fixedly connected to the output shaft of the motor 6, and the other end of the bidirectional screw 10 extends into the interior of the housing 4. The external thread of the bidirectional screw 10 is connected to two symmetrically distributed threaded sleeves 11. A first rotating frame 12 is fixedly connected to both sides of the two threaded sleeves 11. Two symmetrically distributed second rotating frames 13 are fixedly connected to one side of each of the two limiting plates 15. The first rotating frame 12 and the second rotating frame 13 are fixedly connected to the same connecting rod 14.

[0046] In this process, by starting the motor 6, the output end of the motor 6 drives the bidirectional screw 10 to rotate, which in turn drives the two threaded sleeves 11 and the four first rotating frames 12 to move in opposite directions. Through the set first rotating frames 12, second rotating frames 13 and connecting rod 14, the movement of the four first rotating frames 12 can drive the limit plate 15, bearing 9, transmission shaft 3 and tire 2 to move.

[0047] Example 6: This example provides a tractor wheel structure, which, in addition to the technical solutions of the above examples, also has the following technical features: the two helical directions of the bidirectional screw 10 are opposite, and the two threaded sleeves 11 are slidably installed on the inner wall of the housing 4.

[0048] The two screws 10 have opposite spiral directions, which allows the two threaded sleeves 11 to move in opposite directions. The threaded sleeves 11 are slidably mounted on the inner wall of the housing 4, thus preventing the threaded sleeves 11 from rotating when moving.

[0049] Example 7: This example provides a tractor wheel structure, which, in addition to the technical solutions of the above examples, also has the following technical features: the housing 4, the moving block 8, the limiting plate 15 and the bearing 9 are all made of high-strength steel.

[0050] The housing 4, the moving block 8, the limiting plate 15, and the bearing 9 are all made of high-strength steel, which makes the housing 4, the moving block 8, the limiting plate 15, and the bearing 9 compatible with this device.

[0051] Working principle: When it is necessary to adjust the distance between the front wheels of the tractor, first use a jack to lift the tractor so that the two front tires 2 are off the ground. Start the motor 6, and the output end of the motor 6 drives the double-headed screw 10 to rotate. Then, it drives the two threaded sleeves 11 and the four first rotating frames 12 to move in opposite directions. Through the set first rotating frames 12, second rotating frames 13 and connecting rod 14, the movement of the four first rotating frames 12 can drive the limit plate 15, bearing 9, drive shaft 3 and tire 2 to move. Through the above structure, the distance between the two front tires 2 can be adjusted. The adjustment operation is relatively simple and can match the agronomic requirements of different ridge widths and row spacings, avoid crushing plants and improve work efficiency. It can also dynamically optimize the ground pressure distribution according to the terrain changes, enhance the anti-slip and anti-sinking ability of wet and soft fields, and make it convenient for workers to use.

[0052] By setting the limiting plate 15, the moving block 8 can be prevented from detaching from the inside of the housing 4. The threaded sleeve 11 is slidably installed on the inner wall of the housing 4, thus preventing the threaded sleeve 11 from not rotating when moving. By setting the support plate 5, the motor 6 can be prevented from spinning idly when working.

[0053] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A tractor wheel structure, comprising two hubs (1), two tires (2) and two drive shafts (3), characterized in that: The two tires (2) are respectively fixedly connected to the outside of the two hubs (1), and the two drive shafts (3) are respectively fixedly connected to one side of the two hubs (1); The housing (4) is disposed between two hubs (1). Both sides of the housing (4) are provided with through slots (7), and movable blocks (8) are slidably installed inside the two through slots (7). An opposing moving component is disposed inside the housing (4) and is used to drive two moving blocks (8) to move in opposite directions.

2. The tractor wheel structure according to claim 1, characterized in that, Each of the two movable blocks (8) is provided with a bearing (9) at the end away from the housing (4), and the two transmission shafts (3) are respectively fixedly connected to the inner rings of the two bearings (9).

3. A tractor wheel structure according to claim 1, characterized in that, A support plate (5) is fixedly connected to one side of the housing (4), and a motor (6) is fixedly installed on the top of the support plate (5).

4. A tractor wheel structure according to claim 1, characterized in that, Both of the movable blocks (8) are fixedly connected to a limiting plate (15) on one side inside the housing (4).

5. A tractor wheel structure according to claim 4, characterized in that, The opposing moving assembly includes a bidirectional screw (10), one end of which is fixedly connected to the output shaft of the motor (6), and the other end of which penetrates into the interior of the housing (4). The external thread of the bidirectional screw (10) is connected to two symmetrically distributed threaded sleeves (11). Both sides of the two threaded sleeves (11) are fixedly connected to a first rotating frame (12). Both sides of the two limiting plates (15) are fixedly connected to two symmetrically distributed second rotating frames (13). The first rotating frame (12) and the second rotating frame (13) are fixedly connected to the same connecting rod (14).

6. A tractor wheel structure according to claim 5, characterized in that, The two helical sections of the bidirectional screw (10) are in opposite directions, and the two threaded sleeves (11) are slidably mounted on the inner wall of the housing (4).

7. A tractor wheel structure according to claim 4, characterized in that, The shell (4), moving block (8), limiting plate (15) and bearing (9) are all made of high-strength steel.

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