Knuckle and hub bearing mounting structure and vehicle

Abstract

The invention discloses a knuckle and hub bearing mounting structure which comprises a hub bearing and a knuckle, the knuckle is provided with a first contact surface, the hub bearing is provided with a second contact surface in contact with the first contact surface, and the first contact surface or the second contact surface is provided with concave features. According to the mounting structure for the steering knuckle and the hub bearing, the hub bearing and the cast aluminum steering knuckle are in contact in a local matching mode by arranging the concave feature, and abnormal sound generated during steering can be eliminated. The invention further discloses a vehicle.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive parts. Specifically, the present invention relates to an installation structure of a steering knuckle and a wheel hub bearing and a vehicle. Background Art

[0002] In the existing automotive steering system, the wheel hub bearing is fitted with the steering knuckle by press-fitting, and the wheel hub is connected to the wheel to achieve functions such as driving and steering. When the vehicle makes a stationary turn, abnormal noises will occur. After investigation, it is found that the abnormal noises come from the mating surface between the wheel hub bearing and the steering knuckle flange.

[0003] Since the mating surface between the wheel hub bearing and the steering knuckle flange adopts a conventional structure, creep is likely to occur at the joint between the wheel hub bearing and the steering knuckle flange, resulting in abnormal noises during steering.

[0004] Chinese Patent with Application No. 202222888340.5 discloses an automotive steering wheel hub assembly, including a steering knuckle, a wheel hub bearing, and a brake disc. An outer flange is provided on the outer ring of the wheel hub bearing, and an inner flange is provided on the inner ring of the wheel hub bearing. One side of the steering knuckle is provided with a bearing mounting surface. The inner flange is fixedly connected to the brake disc. A plurality of bosses are provided on the bearing mounting surface and are distributed in a circumferential manner. A groove is formed between adjacent bosses; bolt mounting holes are provided on the bosses, and bolts are disposed in the bolt mounting holes to fixedly connect the steering knuckle and the outer flange; the bosses are in contact with the outer flange under the pre-tightening action of the bolts, and a gap is formed between the groove and the outer flange.

[0005] It is desired to provide an improved installation structure of a steering knuckle and a wheel hub bearing, especially regarding how to eliminate abnormal steering noises. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides an installation structure of a steering knuckle and a wheel hub bearing, aiming to eliminate abnormal steering noises.

[0007] To achieve the above object, the technical solution adopted by the present invention is: an installation structure of a steering knuckle and a wheel hub bearing, including a wheel hub bearing and a steering knuckle. A first contact surface is provided on the steering knuckle, and a second contact surface in contact with the first contact surface is provided on the wheel hub bearing. A recessed feature is provided on the first contact surface or the second contact surface.

[0008] A plurality of the recessed features are provided.

[0009] A bearing hole is provided on the steering knuckle, and the recessed features are distributed around the outside of the bearing hole.

[0010] The recessed feature is one or a combination of a linear groove, an arc-shaped groove, a serrated groove, and a dot-shaped depression.

[0011] The knuckle is made of cast aluminum material.

[0012] The concave feature is arranged on the first contact surface, and the concave feature extends from the inner edge of the first contact surface to the outer edge of the first contact surface.

[0013] The present invention also provides a vehicle, including the knuckle and the hub bearing mounting structure described above.

[0014] For the knuckle and hub bearing mounting structure of the present invention, by setting the concave feature, a local contact method between the hub bearing and the cast aluminum knuckle is realized, and abnormal noise generated during steering can be eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] This specification includes the following drawings, and the shown contents are respectively:

[0016] Figure 1 It is the front projection view of the knuckle hub bearing mating surface;

[0017] Figure 2 It is the sectional view of the knuckle hub bearing mating surface;

[0018] The marks in the figure are: 1, the first contact surface; 2, the concave feature; 3, the bearing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, with reference to the drawings, through the description of the embodiments, the specific embodiments of the present invention will be further described in detail. The purpose is to help those skilled in the art have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention, and to facilitate its implementation.

[0020] In the first aspect, as Figure 1 and Figure 2 shown, the present invention provides a knuckle and hub bearing mounting structure, including a hub bearing and a knuckle. A first contact surface 1 is arranged on the knuckle, a second contact surface in contact with the first contact surface 1 is arranged on the hub bearing, and a concave feature 2 is arranged on the first contact surface 1 or the second contact surface.

[0021] Specifically, the present invention aims to solve the problem of abnormal noise generated due to creep between the contact surfaces of the hub bearing and the steering knuckle. By providing a recessed feature 2 on the first contact surface 1 or the second contact surface, the hub bearing and the steering knuckle are in contact in a partial fitting manner, and creep is not likely to occur at the fitting portion between the hub bearing and the steering knuckle. By reducing the creep phenomenon through the partial fitting method, the abnormal noise generated during steering can be eliminated. The function of the steering knuckle is to transmit and bear the load at the front of the vehicle, and it is a component that supports and drives the front wheels to rotate around the kingpin to steer the vehicle. The hub bearing is a bearing that supports the vehicle wheel to rotate freely, and the main function of the hub bearing is to carry the weight and provide precise guidance for the rotation of the hub.

[0022] Preferably, a plurality of recessed features 2 are provided to further reduce the occurrence of creep.

[0023] The recessed feature 2 is one or a combination of a linear groove, an arc-shaped groove, a serrated groove, and a dot-shaped depression. The serrated groove has alternating raised and recessed portions, which can provide greater friction and help prevent creep. The dot-shaped depression is similar to a pit or a dent and can be distributed evenly or irregularly on the contact surface. The dot-shaped depression can increase the number of contact points, improve the friction, and reduce creep. The dot-shaped depression can be designed in a circular, oval, rectangular, or other geometric shapes.

[0024] Combining two or more of the above different forms of recessed features 2 together forms a more complex recessed feature 2. This combined shape can be set according to specific requirements.

[0025] As Figure 1 and Figure 2 shown, in this embodiment, the recessed feature 2 is provided on the first contact surface 1 of the steering knuckle. A bearing hole 3 is provided on the steering knuckle, and the hub bearing is installed in the bearing hole 3. The first contact surface 1 and the second contact surface are planes perpendicular to the axis of the bearing hole 3, and the recessed feature 2 is distributed around the outside of the bearing hole 3.

[0026] As Figure 1 and Figure 2 shown, in this embodiment, the recessed feature 2 is a linear groove. The implementation method of the partial fitting between the hub bearing and the steering knuckle can be to cut out a groove on the steering knuckle by machining and add a machining feature with a specific texture shape on the mating surface. The recessed feature 2 is provided on the first contact surface 1. The length direction of the linear groove is perpendicular to the axis of the bearing hole 3, and the recessed feature 2 extends from the inner edge of the first contact surface 1 to the outer edge of the first contact surface 1. The inside of the inner edge of the first contact surface 1 is the bearing hole 3.

[0027] As Figure 1 and Figure 2As shown, in this embodiment, a total of eight recess features 2 are provided.

[0028] Preferably, the steering knuckle is made of cast aluminum material, which can significantly reduce the weight of the steering knuckle and thus reduce the mass of the whole vehicle.

[0029] In a second aspect, the present invention also provides a vehicle, including the steering knuckle and hub bearing mounting structure having the above structure. The specific structure of this steering knuckle and hub bearing mounting structure can be referred to Figures 1 to 2 , and will not be elaborated here. Since the vehicle of the present invention includes the steering knuckle and hub bearing mounting structure in the above embodiment, it has all the advantages of the above steering knuckle and hub bearing mounting structure.

[0030] The present invention has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present invention; or without improvement, the above concept and technical solution of the present invention are directly applied to other occasions, they are all within the protection scope of the present invention.

Claims

1. A steering knuckle and wheel hub bearing mounting structure, comprising a wheel hub bearing and a steering knuckle, wherein a first contact surface is arranged on the steering knuckle, and a second contact surface in contact with the first contact surface is arranged on the wheel hub bearing, wherein: A recessed feature is disposed on the first contact surface or the second contact surface.

2. The steering knuckle and wheel hub bearing mounting structure according to claim 1, characterized in that: The recessed features are provided in plurality.

3. The steering knuckle and wheel hub bearing mounting structure according to claim 1, characterized in that: There are eight recessed features.

4. The steering knuckle and wheel hub bearing mounting structure according to claim 1, characterized in that: A bearing hole is arranged on the steering knuckle, and the recessed features are distributed around the outer side of the bearing hole.

5. The steering knuckle and wheel hub bearing mounting structure according to claim 4, characterized in that: The concave feature is one or a combination of a straight-line groove, an arc-shaped groove, a sawtooth-shaped groove and a dot-shaped groove.

6. The steering knuckle and wheel hub bearing mounting structure according to any one of claims 1 to 4, characterized in that: The recessed feature is disposed on the first contact surface.

7. The steering knuckle and wheel hub bearing mounting structure according to any one of claims 1 to 4, characterized in that: The steering knuckle is made of cast aluminum.

8. The steering knuckle and wheel hub bearing mounting structure according to any one of claims 1 to 4, characterized in that: The concave feature is disposed on the first contact surface, and the concave feature extends from the inner edge of the first contact surface to the outer edge of the first contact surface.

9. A vehicle, characterized in that: It comprises the steering knuckle and wheel hub bearing mounting structure as described in any one of claims 1 to 8.

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