Steering unit with protective structure

Abstract

The utility model discloses a steering unit with protective structure relates to the field of automobile parts. The steering unit with protective structure, including knuckle main part, ball head main body, ball head protection cover, brake disc and ball head seal cover, ball head protection cover is by protection cover main part and flanging and is composed, the protection cover main part sets up at the junction of knuckle main part and ball head main body, and ball head seal cover is at the outside of ball head main body, and is used for sealing ball head main body, the flanging is between brake disc and ball head seal cover. The steering unit with protective structure, ball head protection cover can reflect and absorb the partial heat radiation that brake disc generates, thereby reduces the heat radiation effect of high temperature brake disc to ball head seal cover, and the service life of ball head seal cover is prolonged significantly.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically a steering unit with a protective structure. Background Technology

[0002] For ordinary passenger cars, under normal braking conditions, the temperature of the brake disc is typically between 100℃ and 300℃. However, under certain extreme conditions, such as prolonged continuous braking or emergency braking after high-speed driving, the temperature of the brake disc can rise significantly, even exceeding 500℃. In front suspension structures where the ball joint seal is located below the steering knuckle, the gap between the seal and the brake disc is usually small, allowing the heat radiation generated by the brake disc to directly affect the seal.

[0003] Ordinary rubber seals have limited heat resistance, withstanding a maximum temperature of only around 100°C for short periods. Therefore, the high-temperature heat radiation from the brake disc significantly accelerates the aging of the seals, leading to premature cracking and ultimately ball joint failure, impacting vehicle safety and lifespan.

[0004] To address this issue, existing technologies primarily focus on developing special rubber formulations to improve the heat resistance of rubber seals. However, the application of such special rubber formulations significantly increases the unit cost of parts, thereby raising the overall vehicle manufacturing cost. Therefore, this application proposes a steering unit with a protective structure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a steering unit with a protective structure, which solves the problem that ordinary rubber seals, due to their limited heat resistance, age faster under the influence of high-temperature heat radiation from the brake disc, leading to premature damage of the seals and ball joint failure, thus affecting vehicle safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steering unit with a protective structure, comprising:

[0007] The steering knuckle body is mounted at the bottom of the front suspension of the vehicle.

[0008] The ball joint body is fixedly installed at the bottom of the steering knuckle body;

[0009] The ball joint protective cover consists of a protective cover body and a folded edge. The protective cover body is located at the connection between the steering knuckle body and the ball joint body, and the folded edge is flipped towards the ball joint body.

[0010] The brake disc is fixedly mounted on the side of the steering knuckle body;

[0011] The ball head sealing cover is located on the outside of the ball head body and is used to seal the ball head body.

[0012] Preferably, a wheel hub bearing is fixedly installed on the side of the brake disc away from the steering knuckle body.

[0013] Preferably, a gap is formed between the brake disc and the ball head seal cover, and the folded edge is located within the gap.

[0014] Preferably, an arc transition surface is provided between the main body of the protective cover and the folded edge.

[0015] Preferably, the protective cover body has a through hole, and the protective cover body is connected to the steering knuckle body and the ball joint body through the through hole.

[0016] Preferably, a positioning hole is provided on the arc transition surface, and a positioning block adapted to the positioning hole is connected to the steering knuckle body.

[0017] This utility model discloses a steering unit with a protective structure, which has the following beneficial effects:

[0018] This steering unit with a protective structure adds a ball joint protective cover between the ball joint seal and the brake disc. The ball joint protective cover reflects and absorbs some of the heat radiation generated by the brake disc, thereby reducing the heat radiation effect of the high-temperature brake disc on the ball joint seal and significantly extending the service life of the ball joint seal. The ball joint protective cover also effectively blocks the impact of flying gravel caused by tire rolling, further protecting the ball joint seal from damage. Compared with the special rubber formula used in existing technologies, this invention solves the heat radiation problem by adding a ball joint protective cover, resulting in lower cost and greater economic efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the ball head protective cover of this utility model.

[0022] In the diagram: 1. Steering knuckle body; 2. Ball joint body; 21. Ball joint seal cover; 3. Ball joint protective cover; 31. Protective cover body; 32. Folded edge; 33. Arc transition surface; 34. Through hole; 35. Positioning hole; 4. Brake disc; 5. Wheel hub bearing; 6. Clearance. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This application provides a steering unit with a protective structure, which solves the problem that ordinary rubber seals, due to their limited heat resistance, age faster under the influence of high-temperature heat radiation from the brake disc, leading to premature cracking of the seals and ball joint failure, thus affecting vehicle safety.

[0025] A ball joint protective cover 3 is added between the ball joint seal 21 and the brake disc 4. The ball joint protective cover 3 reflects and absorbs some of the heat radiation generated by the brake disc 4, thereby reducing the heat radiation effect of the high-temperature brake disc 4 on the ball joint seal 21 and significantly extending the service life of the ball joint seal 21. The ball joint protective cover 3 can also effectively block the impact of flying gravel caused by tire rolling on the ball joint seal 21, further protecting it from damage. Compared with the special rubber formula used in the prior art, this invention solves the heat radiation problem by adding the ball joint protective cover 3, resulting in lower cost and greater economic efficiency.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] This utility model discloses a steering unit with a protective structure.

[0028] According to the appendix Figure 1-2 As shown, it includes:

[0029] Steering knuckle body 1, which is installed at the bottom of the front suspension of the vehicle;

[0030] The ball joint body 2 is fixedly installed at the bottom of the steering knuckle body 1. The ball joint body 2 connects the wheel and the suspension system to achieve the steering function of the wheel. The ball joint body 2 forms a stable connection with the steering knuckle body 1 through a press-fit method.

[0031] The ball joint protective cover 3 consists of a protective cover body 31 and a folded edge 32. The protective cover body 31 is located at the connection between the steering knuckle body 1 and the ball joint body 2, and the folded edge 32 is flipped towards the ball joint body 2.

[0032] Brake disc 4, which is fixedly installed on the side of steering knuckle body 1;

[0033] The ball head sealing cover 21 is located on the outside of the ball head body 2 and is used to seal the ball head body 2 to prevent dust and moisture from entering and to ensure the normal operation of the ball head body 2.

[0034] A ball joint protective cover 3 is added between the ball joint seal 21 and the brake disc 4. The ball joint protective cover 3 reflects and absorbs some of the heat radiation generated by the brake disc 4, thereby reducing the heat radiation effect of the high-temperature brake disc 4 on the ball joint seal 21 and significantly extending the service life of the ball joint seal 21. The ball joint protective cover 3 can also effectively block the impact of flying gravel caused by tire rolling on the ball joint seal 21, further protecting it from damage. Compared with the special rubber formula used in the prior art, this invention solves the heat radiation problem by adding the ball joint protective cover 3, resulting in lower cost and greater economic efficiency.

[0035] Furthermore, a wheel hub bearing 5 is fixedly installed on the side of the brake disc 4 away from the steering knuckle body 1.

[0036] Furthermore, a gap 6 is formed between the brake disc 4 and the ball joint seal cover 21, and the folded edge 32 is located in the gap 6.

[0037] The brake disc 4 is fixedly mounted on the side of the steering knuckle body 1 and is an important component of the braking system. During braking, the brake disc 4 contacts the brake pads to generate friction, thereby slowing down or stopping the rotation of the wheel. A certain gap 6 is formed between the brake disc 4 and the ball joint seal 21, and the folded edge 32 is located in this gap 6, further reducing the heat radiation effect of the brake disc 4 on the ball joint seal 21.

[0038] Furthermore, an arc transition surface 33 is provided between the main body 31 of the protective cover and the folded edge 32.

[0039] The protective cover body 31 is located at the connection between the steering knuckle body 1 and the ball joint body 2, and is used to protect the ball joint body 2 and the ball joint seal cover 21 from the influence of the external environment. The folded edge 32 is flipped towards the ball joint body 2 and is located between the brake disc 4 and the ball joint seal cover 21. The design of the folded edge 32 effectively isolates the heat radiation generated by the brake disc 4 and the direct impact of road gravel on the ball joint seal cover 21.

[0040] An arc transition surface 33 is provided between the main body 31 of the protective cover and the folded edge 32 to reduce stress concentration and improve the durability and structural strength of the ball joint protective cover 3. A positioning hole 35 is also provided on the arc transition surface 33, and a positioning block that matches the positioning hole 35 is connected to the main body 1 of the steering knuckle to ensure accurate installation and fixation of the ball joint protective cover 3.

[0041] Furthermore, the protective cover body 31 has a through hole 34, and the protective cover body 31 is connected to the steering knuckle body 1 and the ball joint body 2 through the through hole 34.

[0042] Furthermore, a positioning hole 35 is provided on the arc transition surface 33, and a positioning block that matches the positioning hole 35 is connected to the steering knuckle body 1.

[0043] A ball joint protective cover 3 is added between the ball joint seal 21 and the brake disc 4. The ball joint protective cover 3 reflects and absorbs some of the heat radiation generated by the brake disc 4, thereby reducing the heat radiation effect of the high-temperature brake disc 4 on the ball joint seal 21 and significantly extending the service life of the ball joint seal 21. The ball joint protective cover 3 can also effectively block the impact of flying gravel caused by tire rolling on the ball joint seal 21, further protecting it from damage. Compared with the special rubber formula used in the prior art, this invention solves the heat radiation problem by adding the ball joint protective cover 3, resulting in lower cost and greater economic efficiency.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steering unit with a protective structure, characterized in that, include: Steering knuckle body (1), which is installed at the bottom of the front suspension of the vehicle; The ball joint body (2) is fixedly installed at the bottom of the steering knuckle body (1); The ball joint protective cover (3) consists of a protective cover body (31) and a folded edge (32). The protective cover body (31) is located at the connection between the steering knuckle body (1) and the ball joint body (2), and the folded edge (32) is flipped towards the ball joint body (2). Brake disc (4), which is fixedly installed on the side of steering knuckle body (1); The ball head sealing cover (21) is located outside the ball head body (2) and is used to seal the ball head body (2).

2. A steering unit with a protective structure according to claim 1, characterized in that, A hub bearing (5) is fixedly installed on the side of the brake disc (4) away from the steering knuckle body (1).

3. A steering unit with a protective structure according to claim 1, characterized in that, A gap (6) is formed between the brake disc (4) and the ball head seal cover (21), and the folded edge (32) is located in the gap (6).

4. A steering unit with a protective structure according to claim 1, characterized in that, An arc transition surface (33) is provided between the main body (31) of the protective cover and the folded edge (32).

5. A steering unit with a protective structure according to claim 1, characterized in that, The protective cover body (31) has a through hole (34), and the protective cover body (31) is connected to the steering knuckle body (1) and the ball joint body (2) through the through hole (34).

6. A steering unit with a protective structure according to claim 4, characterized in that, The arc transition surface (33) is provided with a positioning hole (35), and the steering knuckle body (1) is connected with a positioning block that matches the positioning hole (35).

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