A washer for adjusting the angle of a vehicle wheel

Abstract

This utility model discloses a shim for adjusting the angle of automobile wheels, belonging to the technical field of automobile wheel shims. It includes a shim body, with a first working surface on one side and a first groove formed thereon on the surface of the first working surface. A second working surface is provided on the other side of the shim body, with a second groove formed thereon on the surface of the second working surface. Positioning holes and grooves are evenly distributed around the circumference of the shim body. This inclined shim structure allows it to be installed between the rear axle and the half-shaft. The inclined design enables adaptive adjustment of the wheel camber and toe angles. The circumferentially distributed positioning holes and grooves allow the shim to rotate around its axis at any angle during installation.

Description

Technical Field

[0001] This utility model relates to the field of automotive wheel shims technology, specifically a shim used to adjust the angle of automotive wheels. Background Technology

[0002] The key parameters of automotive wheel angles include camber angle and toe angle. Their design aims to optimize handling. Camber refers to the acute angle between the wheel axis and the horizontal line in a plane passing through the wheel axis and perpendicular to the vehicle's support plane. Specifically, it is the angle formed by the tire centerline and the vertical line when viewed from the front of the vehicle. Outward is positive, and inward is negative. This angle difference directly affects the contact point between the tire and the ground, thereby changing the tire's wear condition. At the same time, it also affects the force distribution of the vehicle's weight on the axle, helping to avoid abnormal bearing wear. Therefore, to improve the accuracy of wheel installation angles, shims are usually used to assist in the precise adjustment of the wheel installation angle.

[0003] An investigation revealed that a utility model patent (publication number: CN209180215U) discloses a shim for adjusting the angle of automobile wheels. The shim includes a shim body with a central circular hole perpendicular to its lower plane. An included angle A is formed between the upper and lower planes of the shim body. Several extensions are provided along the edge of the shim body, each with a positioning hole perpendicular to its lower plane. A protrusion is located on the side of the shim body furthest from angle A. This adjusting shim, through precise design of the shape, position, and size of the positioning holes, ensures that it can be securely installed between the rear axle and the rear half-shaft, preventing slippage and guaranteeing the stability and safety of the vehicle wheels after adjustment.

[0004] The aforementioned patent, through precise design of the shape, position, and size of the positioning holes on the adjustment shim, enables the adjustment shim of this utility model to be firmly installed between the rear axle and the rear half shaft, making it less prone to slippage. However, due to the precise adjustment design of its mounting hole position, the installation adaptability of the shim is greatly reduced. In addition, it can only be used alone. When its installation and maintenance are extensive, it needs to be used in conjunction with other shims for auxiliary adjustment, reducing its multi-functional practicality.

[0005] Therefore, this invention provides a shim for adjusting the angle of automobile wheels to solve the above-mentioned problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a shim for adjusting the angle of automobile wheels, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a shim for adjusting the angle of automobile wheels, comprising a shim body, a first working surface provided on one side of the shim body, and a first groove formed on the surface of the first working surface, a second working surface provided on the other side of the shim body, and a second groove formed on the surface of the second working surface, and positioning holes and grooves uniformly formed around the circumference of the shim body.

[0010] As a preferred technical solution of this application, the material of the gasket body is either metal or plastic.

[0011] As a preferred technical solution of this application, the protrusion between adjacent first grooves can be engaged with the interior of the first groove, and the first grooves are arranged in a circumferential array.

[0012] As a preferred technical solution of this application, the protrusion between adjacent second grooves can be engaged with the interior of the second groove, and the second grooves are arranged in a circumferential array.

[0013] As a preferred technical solution of this application, one side of the first working surface is a horizontal surface, and one side of the second working surface is an inclined surface.

[0014] As a preferred technical solution of this application, the outer edges of both sides of the gasket body are provided with scale lines and angle values.

[0015] As a preferred technical solution of this application, the center of the gasket body is provided with a central circular hole, and the inner wall of the central circular hole is provided with anti-slip texture, which can be either horizontal serration or wavy texture.

[0016] As a preferred technical solution of this application, the metal material of the gasket body is high-strength spring steel, and the plastic material of the gasket body is a mixture of nylon and glass fiber.

[0017] As a preferred technical solution of this application, the positioning hole groove is opened in an arc shape, and at least three sets of positioning hole grooves are opened around the circumference, and the combined arc opening angle of the positioning hole groove is at least 320 degrees.

[0018] As a preferred technical solution of this application, the first working surfaces of the adjacent gasket bodies can be inserted and fitted together, and the second working surfaces of the adjacent gasket bodies can be inserted and fitted together. When the second working surfaces are inserted, both sides of the adjacent gasket bodies are horizontal structures.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this application are as follows: This utility model, through the setting of the inclined shim structure, allows it to be installed between the rear axle and the half-shaft. Furthermore, its inclined structure design enables adaptive adjustment of the wheel camber and toe angles. The circumferentially distributed positioning slots allow the shim to rotate around the axis at any angle during installation. During rotation, the position of the thickest part of the shim dynamically changes, simultaneously affecting the camber and toe angles, further improving installation flexibility. Simultaneously, the shims can be spliced ​​and interlocked, further enhancing installation adaptability through the overlapping and matching of the shims. The interlocking installation provides higher stability, preventing axial rotation. The anti-slip texture inside the central hole of the shim creates a mechanical interlocking effect with the outer wall of the axle during installation, suppressing axial movement and improving its anti-slip capability. Furthermore, the first and second slots on both working surfaces create a continuous concave-convex structure, increasing friction with the contact surface and further enhancing the shim's installation firmness, preventing circumferential sliding. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the first working surface of this utility model in its spliced ​​state;

[0023] Figure 3 This is a schematic diagram of the overall structure of the second working surface of this utility model in its spliced ​​state;

[0024] Figure 4 This is a side view of the first working surface of this utility model in its spliced ​​state.

[0025] Figure 5 This is a schematic diagram of the overall side structure of this utility model;

[0026] Figure 6 This is a side view of the second working surface of this utility model in its spliced ​​state.

[0027] In the picture:

[0028] 1. Gasket body; 11. First working surface; 12. First groove; 13. Second working surface; 14. Second groove; 15. Positioning hole groove. Detailed Implementation

[0029] 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.

[0030] like Figure 1-6 As shown, this utility model provides a shim for adjusting the angle of automobile wheels, including a shim body 1. A first working surface 11 is provided on one side of the shim body 1, and a first groove 12 is formed on the surface of the first working surface 11. A second working surface 13 is provided on the other side of the shim body 1, and a second groove 14 is formed on the surface of the second working surface 13. Positioning holes 15 are evenly formed around the circumference of the shim body 1. By forming the first groove 12 and the second groove 14 on both sides of the shim body 1, their corresponding surfaces can be interlocked and spliced, thereby improving the flexibility of the shim body 1 in use. By splicing the first working surface 11, both sides are only inclined. At the same time, by adjusting the splicing angle, the overall tilt angle of the shim can be adjusted, thereby achieving adaptability adjustment for different angles. By splicing the second working surface 13, both sides are horizontal, thereby enabling splicing and installation according to the size of the gap. The installation position of its inclined surface can be adjusted without the need for the addition of conventional shims.

[0031] Furthermore, the gasket body 1 can be made of either metal or plastic. The metal material of the gasket body 1 is high-strength spring steel, and the plastic material of the gasket body 1 is a mixture of nylon and glass fiber. By using two different materials, it can meet different installation requirements and different production costs.

[0032] Furthermore, the protrusions between adjacent first grooves 12 can engage with the interior of the first groove 12, and the first grooves 12 are arranged in a circumferential array. The protrusions between adjacent second grooves 14 can engage with the interior of the second groove 14, and the second grooves 14 are arranged in a circumferential array. The first working surfaces 11 of adjacent gasket bodies 1 can be inserted and engaged, and the second working surfaces 13 of adjacent gasket bodies 1 can be inserted and engaged. When the second working surfaces 13 are inserted, both sides of the adjacent gasket bodies 1 are horizontal. Through the opening of the first grooves 12 and the second grooves 14, the flexible splicing between adjacent gasket bodies 1 can be satisfied, thereby improving the flexibility of its use.

[0033] Furthermore, one side of the first working surface 11 is a horizontal surface, and one side of the second working surface 13 is an inclined surface. The outer edges of both sides of the gasket body 1 are provided with scale lines and angle values. Through the surface contact design, the contact friction is improved, the circumferential displacement is reduced, and the stability of angle adjustment is improved.

[0034] Furthermore, the gasket body 1 has a central circular hole, and the inner wall of the central circular hole has anti-slip texture, which can be either horizontal sawtooth or wavy. The anti-slip texture improves the axial contact friction and reduces axial displacement. The positioning slot 15 is arc-shaped, and at least three sets of positioning slots are provided around its circumference. The arc angle of the positioning slot 15 is at least 320 degrees. By using the central circular hole in conjunction with the positioning slot 15, the gasket body 1 can be rotated and adjusted during installation. This not only allows for adjustment of its tilt angle but also for adaptation to the mounting hole position.

[0035] Working principle: First, place the gasket body 1 between the rear axle and the half shaft. After adjusting and positioning the tilt angle of the gasket body 1, pass the bolt through the positioning hole groove 15 and fix it with the standard torque.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A shim for adjusting the angle of automobile wheels, characterized in that: The gasket body (1) includes a first working surface (11) on one side and a first groove (12) on the surface of the first working surface (11). The gasket body (1) has a second working surface (13) on the other side and a second groove (14) on the surface of the second working surface (13). The gasket body (1) has positioning holes (15) evenly distributed around its circumference.

2. A shim for adjusting the angle of automobile wheels according to claim 1, characterized in that: The gasket body (1) is made of either metal or plastic.

3. A shim for adjusting the angle of automobile wheels according to claim 2, characterized in that: The protrusions between adjacent first grooves (12) can engage with the interior of the first groove (12), and the first grooves (12) are arranged in a circular array.

4. A shim for adjusting the angle of automobile wheels according to claim 3, characterized in that: The protrusions between adjacent second grooves (14) can engage with the interior of the second groove (14), and the second grooves (14) are arranged in a circumferential array.

5. A shim for adjusting the angle of automobile wheels according to claim 1, characterized in that: The first working surface (11) has a horizontal side, and the second working surface (13) has an inclined side.

6. A shim for adjusting the angle of automobile wheels according to claim 5, characterized in that: The outer edges of both sides of the gasket body (1) are provided with scale lines and angle values.

7. A shim for adjusting the angle of automobile wheels according to claim 5, characterized in that: The gasket body (1) has a central circular hole, and the inner wall of the central circular hole has anti-slip texture, which can be either horizontal serration or wavy texture.

8. A shim for adjusting the angle of automobile wheels according to claim 2, characterized in that: The metal material of the gasket body (1) is high-strength spring steel, and the plastic material of the gasket body (1) is a mixture of nylon and glass fiber.

9. A shim for adjusting the angle of automobile wheels according to claim 5, characterized in that: The positioning slot (15) is opened in an arc shape, and at least three sets of positioning slots (15) are opened around the circumference. The combined arc angle of the positioning slots (15) is at least 320 degrees.

10. A shim for adjusting the angle of automobile wheels according to claim 5, characterized in that: The first working surface (11) of the adjacent gasket body (1) can be inserted and fitted, and the second working surface (13) of the adjacent gasket body (1) can be inserted and fitted. When the second working surface (13) is inserted, both sides of the adjacent gasket body (1) are horizontal.

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