Automobile steering spline input shaft

Abstract

The utility model relates to the technical field of automobile parts, in particular to an automobile steering spline input shaft which comprises a first shaft body, a spline body and a second shaft body, a connecting plate is detachably installed on the inner wall of the spline body, and two clamping plates are connected to the inner wall of the connecting plate in a sliding mode. The two clamping plates are fixedly connected with the first shaft body and the second shaft body correspondingly, four threaded rods are inserted into the inner wall of the connecting plate in a threaded mode, the four threaded rods are all inserted into the inner wall of the spline body in a threaded mode, two positioning blocks are fixedly connected to the inner wall of the spline body, and the two positioning blocks are both slidably connected to the inner wall of the connecting plate. The automobile steering spline input shaft solves the problems that in the long-term use process of the automobile steering spline input shaft, due to the fact that the spline needs to be matched with a spline groove to achieve the automobile steering function, the spline is abraded, and when the spline input shaft needs to be replaced, the whole input shaft needs to be replaced generally, and the maintenance cost is high.

Description

Technical Field

[0001] This utility model relates to the field of automotive component technology, and in particular to an automotive steering spline input shaft. Background Technology

[0002] The automotive steering spline input shaft is a mechanical component of the automotive steering system. It is mainly used to convert the force applied to the steering wheel by the driver into torque, which is then transmitted to the steering shaft to control the direction of the vehicle and thus realize the vehicle's steering operation.

[0003] Existing technologies often have the following drawbacks: During long-term use of automotive steering spline input shafts, the splines wear out because they need to work with spline slots to achieve the steering function. When the spline input shaft needs to be replaced, the entire input shaft usually needs to be replaced, resulting in high maintenance costs.

[0004] Therefore, this utility model provides an automotive steering spline input shaft. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the wear and tear of automotive steering spline input shafts during long-term use, where the splines need to work with the spline grooves to achieve the steering function. When the spline input shaft needs to be replaced, the entire input shaft usually needs to be replaced, resulting in high maintenance costs. Therefore, this invention proposes an automotive steering spline input shaft.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automotive steering spline input shaft, comprising a first shaft body, a spline body, and a second shaft body. A connecting plate is detachably installed on the inner wall of the spline body. Two retaining plates are slidably connected to the inner wall of the connecting plate. The two retaining plates are respectively fixedly connected to the first shaft body and the second shaft body. Four threaded rods are threadedly inserted into the inner wall of the connecting plate. All four threaded rods are threaded into the inner wall of the spline body.

[0007] The effects achieved by the above components are as follows: the threaded rod allows for easy connection between the connecting plate and the spline body, while ensuring that the connecting plate can be removed from the spline body. The connecting plate and the retaining plate enable connection and separation between the spline body and the first and second shafts.

[0008] Preferably, two positioning blocks are fixedly connected to the inner wall of the spline body, and both positioning blocks are slidably connected to the inner wall of the connecting plate.

[0009] The effect achieved by the above components is that the positioning block can be used to position the connecting plate when it is installed on the spline body, which facilitates the installation of the connecting plate.

[0010] Preferably, a vertical plate is fixedly connected to the surface of both plates, and a locking rod is fixedly connected to the side of the vertical plate near the spline body.

[0011] The effect achieved by the above components is that the clamping rod and the clamping plate can be connected by the vertical plate, and the clamping rod can be used to restrict the position of the clamping plate.

[0012] Preferably, two arc-shaped blocks are installed on the side of the connecting plate near the lever, and the side of the two arc-shaped blocks near the vertical plate is an arc-shaped surface.

[0013] The effect achieved by the above components is that the position of the lever can be restricted by the arc-shaped block, and the arc-shaped surface of the arc-shaped block allows the lever to push the arc-shaped block to move.

[0014] Preferably, four guide plates are fixedly connected to the side of the connecting plate near the arc-shaped block, and a sliding plate is slidably connected to the inner wall of each of the four guide plates, and the sliding plate is fixedly connected to the arc-shaped block.

[0015] The effect achieved by the above components is that the guide plate can guide the movement of the slide plate and the arc block, and the slide plate can be used to connect the arc block to the guide plate.

[0016] Preferably, a limiting plate is fixedly connected to the side of the slide away from the arc-shaped block, the limiting plate is slidably connected to the surface of the guide plate, and reinforcing plates are fixedly connected to both sides of the four guide plates, the side of the reinforcing plate away from the guide plate is fixedly connected to the connecting plate.

[0017] The effects achieved by the above components are as follows: the reinforcing plate can improve the stability of the guide plate installation, and the limiting plate can ensure a stable connection between the slide plate and the guide plate.

[0018] Preferably, each of the four guide plates has a guide rod fixedly connected to its inner wall. The guide rod is slidably connected to the inner wall of the slide plate. A spring is fitted on the surface of the guide rod, and the two ends of the spring are fixedly connected to the guide plate and the slide plate, respectively.

[0019] The aforementioned components achieve the following effects: the guide rods can guide the movement of the skateboard, while also limiting the position of the springs.

[0020] In summary:

[0021] 1. In this utility model, the connection plate, clamping plate, vertical plate, clamping rod and arc-shaped block can achieve the connection and separation between the spline body and the first shaft and the second shaft. Thus, when the spline body is worn and affects the use of the car, only the spline body needs to be replaced, which reduces the maintenance cost.

[0022] 2. In this utility model, the positioning block can be used to position the connecting plate when it is installed on the spline body. The threaded rod can be used to install and remove the connecting plate from the spline body, so that the connecting plate can be recycled. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0025] Figure 3 This utility model Figure 2 A schematic diagram of a partial structure;

[0026] Figure 4 This is a schematic diagram of the connecting plate of this utility model;

[0027] Figure 5 This utility model Figure 4 Enlarged view of point A.

[0028] Legend: 1. First shaft; 2. Second shaft; 3. Spline body; 4. Connecting plate; 5. Clamping plate; 6. Vertical plate; 7. Clamping rod; 8. Positioning block; 9. Threaded rod; 10. Reinforcing plate; 11. Guide plate; 12. Guide rod; 13. Spring; 14. Slide plate; 15. Limiting plate; 16. Arc-shaped block. Detailed Implementation

[0029] Reference Figures 1-4 As shown, this utility model provides a technical solution: an automotive steering spline input shaft, including a first shaft body 1, a spline body 3, and a second shaft body 2. A connecting plate 4 is detachably installed on the inner wall of the spline body 3. Two retaining plates 5 are slidably connected to the inner wall of the connecting plate 4, and the two retaining plates 5 are respectively fixedly connected to the first shaft body 1 and the second shaft body 2. Four threaded rods 9 are threadedly inserted into the inner wall of the connecting plate 4, and all four threaded rods 9 are threaded into the inner wall of the spline body 3. The threaded rods 9 facilitate the connection between the connecting plate 4 and the spline body 3, while ensuring that the connecting plate 4 can be detached from the spline body 3. The connecting plate 4 and retaining plates 5 enable the connection and separation between the spline body 3 and the first shaft body 1 and the second shaft body 2.

[0030] The following is a detailed explanation of its overall setup and function.

[0031] Reference Figures 1-5As shown in this embodiment: Two positioning blocks 8 are fixedly connected to the inner wall of the spline body 3, and both positioning blocks 8 are slidably connected to the inner wall of the connecting plate 4. The positioning blocks 8 provide a positioning effect when the connecting plate 4 is installed onto the spline body 3, facilitating the installation of the connecting plate 4. Vertical plates 6 are fixedly connected to the surfaces of both clamping plates 5, and clamping rods 7 are fixedly connected to the side of the vertical plates 6 closest to the spline body 3. The vertical plates 6 connect the clamping rods 7 to the clamping plates 5, allowing the clamping rods 7 to restrict the position of the clamping plates 5. Two arc-shaped blocks 16 are installed on the side of the connecting plate 4 closest to the clamping rods 7, and the side of the two arc-shaped blocks 16 closest to the vertical plates 6 has an arc-shaped surface. The arc-shaped blocks 16 restrict the position of the clamping rods 7, and the arc-shaped surface of the arc-shaped blocks 16 allows the clamping rods 7 to push the arc-shaped blocks 16 to move.

[0032] Four guide plates 11 are fixedly connected to the side of the connecting plate 4 near the arc-shaped block 16. Slide plates 14 are slidably connected to the inner walls of each of the four guide plates 11, and the slide plates 14 are fixedly connected to the arc-shaped block 16. The guide plates 11 guide the movement of the slide plates 14 and the arc-shaped block 16, and the slide plates 14 connect the arc-shaped block 16 to the guide plates 11. A limiting plate 15 is fixedly connected to the side of the slide plate 14 away from the arc-shaped block 16, and the limiting plate 15 is slidably connected to the surface of the guide plates 11. Reinforcing plates 10 are fixedly connected to both sides of each of the four guide plates 11, and the side of the reinforcing plate 10 away from the guide plates 11 is fixedly connected to the connecting plate 4. The reinforcing plates 10 improve the stability of the guide plates 11 installation, and the limiting plates 15 ensure a stable connection between the slide plates 14 and the guide plates 11. Guide rods 12 are fixedly connected to the inner walls of the four guide plates 11. The guide rods 12 are slidably connected to the inner wall of the slide plate 14. Springs 13 are sleeved on the surface of the guide rods 12, and the two ends of the springs 13 are fixedly connected to the guide plates 11 and the slide plate 14, respectively. The guide rods 12 can guide the movement of the slide plate 14, and at the same time, they can limit the position of the springs 13.

[0033] Working principle: When the spline body 3 needs to be replaced, firstly, the arc-shaped block 16 near the second shaft 2 is controlled to drive the slide plate 14 to slide on the surface of the guide rod 12, causing the arc-shaped block 16 to move away from the locking rod 7, thus releasing the restriction on the position of the locking rod 7. Then, the second shaft 2 is moved, causing the locking plate 5 and the vertical plate 6 on the second shaft 2 to move away from the spline body 3. Next, the arc-shaped block 16 near the first shaft 1 is moved, releasing the connection between the first shaft 1 and the spline body 3, moving the spline body 3 away from the first shaft 1, and then the threaded rod 9 is separated, so that... The connecting plate 4 is separated from the spline body 3. The connecting plate 4 is moved closer to the spline body 3 to be replaced. The connecting plate 4 is rotated so that it slides on the inner wall of the spline body 3, thereby bringing the connecting plate 4 closer to the positioning block 8 and positioning the connecting plate 4. Then, the connecting plate 4 and the spline body 3 are connected by the threaded rod 9. The spline body 3 is moved closer to the first shaft 1 so that the locking plate 5 on the first shaft 1 is engaged in the connecting plate 4. The locking rod 7 on the first shaft 1 contacts the arc surface of the arc block 16, pushing the arc block 16 to drive the slide plate 14 to slide on the inner wall of the guide plate 11. Simultaneously, the limiting plate 15 slides on the surface of the guide plate 11. When the vertical plate 6 contacts the connecting plate 4, the locking rod 7 passes through the arc-shaped block 16. At this time, under the action of the spring force of the spring 13, the arc-shaped block 16 moves closer to the reinforcing plate 10, restricting the position of the locking rod 7, thus completing the connection between the first shaft 1 and the spline body 3. Then, the second shaft 2 is moved, so that the arc-shaped block 16 close to the second shaft 2 restricts the position of the locking rod 7 on the second shaft 2, realizing the connection between the second shaft 2 and the spline body 3, completing the replacement of the spline body 3. The connecting plate 4, clamping plate 5, vertical plate 6, clamping rod 7, and arc-shaped block 16 enable the connection and separation between the spline body 3 and the first shaft 1 and the second shaft 2. This allows for the replacement of only the spline body 3 when it wears down and affects the use of the vehicle, reducing maintenance costs. The positioning block 8 provides positioning when the connecting plate 4 is installed onto the spline body 3. The threaded rod 9 allows the connecting plate 4 to be installed and removed from the spline body 3, making the connecting plate 4 reusable.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A car steering spline input shaft, comprising a first shaft body (1), a spline body (3), and a second shaft body (2), characterized in that: The inner wall of the spline body (3) is detachably fitted with a connecting plate (4). The inner wall of the connecting plate (4) is slidably connected with two clamping plates (5). The two clamping plates (5) are fixedly connected to the first shaft (1) and the second shaft (2) respectively. The inner wall of the connecting plate (4) is threaded with four threaded rods (9). All four threaded rods (9) are threaded into the inner wall of the spline body (3).

2. The automotive steering spline input shaft according to claim 1, characterized in that: Two positioning blocks (8) are fixedly connected to the inner wall of the spline body (3), and both positioning blocks (8) are slidably connected to the inner wall of the connecting plate (4).

3. The automotive steering spline input shaft according to claim 1, characterized in that: A vertical plate (6) is fixedly connected to the surface of each of the two clamping plates (5), and a clamping rod (7) is fixedly connected to the side of the vertical plate (6) near the spline body (3).

4. The automotive steering spline input shaft according to claim 3, characterized in that: Two arc-shaped blocks (16) are installed on the side of the connecting plate (4) near the lever (7), and the side of the two arc-shaped blocks (16) near the vertical plate (6) is an arc-shaped surface.

5. The automotive steering spline input shaft according to claim 4, characterized in that: The connecting plate (4) is fixedly connected to four guide plates (11) on the side near the arc-shaped block (16). The inner walls of the four guide plates (11) are slidably connected to a sliding plate (14), and the sliding plate (14) is fixedly connected to the arc-shaped block (16).

6. The automotive steering spline input shaft according to claim 5, characterized in that: A limiting plate (15) is fixedly connected to the side of the slide plate (14) away from the arc block (16). The limiting plate (15) is slidably connected to the surface of the guide plate (11). A reinforcing plate (10) is fixedly connected to both sides of the four guide plates (11). The side of the reinforcing plate (10) away from the guide plate (11) is fixedly connected to the connecting plate (4).

7. The automotive steering spline input shaft according to claim 5, characterized in that: The inner walls of the four guide plates (11) are all fixedly connected with guide rods (12), the guide rods (12) are slidably connected to the inner wall of the slide plate (14), and the surface of the guide rods (12) is fitted with springs (13), the two ends of the springs (13) are fixedly connected to the guide plates (11) and the slide plate (14) respectively.

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