Automobile steering knuckle with good damping effect
By using a combined structure of elastic sleeve and sponge washer in the steering joint, the problem of uneven distribution of axial buffering and shock absorption and lubricant oil at the hub bearing connection is solved, and more stable wheel steering and more uniform lubricant oil are achieved. distribute.
Patent Information
- Application Number
- CN202421018469.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Existing automotive steering knuckles cannot achieve axial cushioning at hub bearing connections, and the lubricant oil flow rate is too fast, resulting in uneven oil distribution.
A car steering joint including an elastic sleeve and a reinforcement ring is designed. The expansion part of the elastic sleeve is in contact with the outer side of the steering joint body, and the elastic force of the elastic sleeve is used to circumferentially and axially buffer the hub bearings. At the same time, the flow rate and distribution of lubricating oil are adjusted through the sponge washer and oil hole structure.
The circumferential and axial buffering and shock absorption at the hub bearing connection is achieved, ensuring the stability of the wheel steering, and through the absorption and buffering of the sponge washer, the lubricating oil flow rate is slowed and the uniformity of the oil volume distribution is improved.
Smart Images
Figure CN222157584U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field, in particular to an automobile steering knuckle with good shock absorption effect. Background Art
[0002] The steering knuckle is a key component in the brake angle assembly. It is responsible for connecting multiple parts such as the shock absorber, wheel hub bearing, brake caliper, steering tie rod and swing arm. It is the component that directly bears the impact of the ground. Therefore, high requirements are placed on the strength of the steering knuckle and the stability of the wheel.
[0003] In view of this, a Chinese patent document with the authorization number CN216916008U discloses a car steering knuckle with good shock absorption effect, including a steering knuckle body, a mounting hole is opened on the upper surface of the steering knuckle body, a shock-absorbing group ring is arranged on the inner wall of the mounting hole, a built-in reinforcement ring is arranged inside the shock-absorbing group ring, and a composite spring is fixedly connected to the outer wall of the built-in reinforcement ring. The built-in reinforcement ring is transmitted to the inside of the composite spring, the transverse buffer spring, the first side arc spring and the second side arc spring, so that the four are deformed to generate a reaction force, and then offset and absorb the shock impact, thereby improving the steering stability of the wheel; however, the shock-absorbing group ring in the mounting hole of the above technical solution can only play a circumferential buffering and shock absorption role at the hub bearing connection, and cannot play an axial buffering and shock absorption role at the hub bearing connection; in addition, when lubricating oil is directly added to the annular oil groove through the oil channel, it is easy to flow too fast and cause uneven oil distribution.
[0004] Therefore, it is necessary to improve the above shortcomings of the prior art. Summary of the invention
[0005] The technical problem to be solved by the utility model is to provide an automobile steering knuckle with good shock absorption effect in view of the above-mentioned deficiencies in the prior art, so as to solve the problems in the prior art that the axial buffering and shock absorption at the hub bearing connection is impossible and the oil distribution is uneven due to excessive flow rate of the lubricating oil.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile steering knuckle with good shock absorption effect, comprising a steering knuckle body, a mounting hole is provided in the middle of the steering knuckle body, an elastic sleeve is fitted on the inner wall of the mounting hole, a first annular groove is provided on the inner wall of the middle part of the elastic sleeve, a reinforcement ring is installed in the first annular groove, an extension portion extending toward the outer diameter is provided at one end of the elastic sleeve connected near the wheel hub bearing, and the extension portion abuts against the outer side surface of the mounting hole of the steering knuckle body.
[0007] By adopting the above technical solution, the elastic sleeve and the reinforcement ring are sleeved on the periphery of the wheel hub bearing, and the extended portion of the elastic sleeve is located between the outer side surface of the mounting hole of the steering knuckle body and the side surface of the wheel hub bearing. By utilizing the elastic force of the elastic sleeve, the vibration impact of the wheel hub bearing connection in the circumferential and axial directions can be offset and absorbed at the same time, thereby improving the steering stability of the wheel.
[0008] The above technical solution is further configured as follows: a first oil hole is provided on the steering knuckle body toward the mounting hole, a second oil hole connected to the first oil hole is provided on the outer wall of the elastic sleeve, a second annular groove connected to the second oil hole is provided on the inner wall of the first annular groove of the elastic sleeve, a sponge gasket is installed in the second annular groove, and a plurality of third oil holes are evenly distributed circumferentially on the part of the reinforcement ring abutting against the sponge gasket.
[0009] By adopting the above technical solution, when lubricating oil is added to the steering knuckle, the lubricating oil is injected from the first oil hole, then flows to the sponge gasket through the second oil hole and is absorbed by the sponge gasket. When the sponge gasket is full or vibrates, it penetrates into the wheel hub bearing through the third oil hole. Since the sponge gasket can absorb and buffer the oil and diffuse it circumferentially, the flow rate is slowed down and the oil distribution is made more even.
[0010] The above technical solution is further configured as follows: a plurality of clamping blocks are evenly distributed in the circumferential direction on the side surface of the extension portion close to the mounting hole, and a clamping groove adapted to the clamping block is provided on the steering knuckle body.
[0011] By adopting the above technical solution, the block is inserted into the slot, so that the steering knuckle body and the elastic sleeve can be limited in circumferential direction, thereby avoiding relative rotation that causes misalignment of the first oil hole and the second oil hole.
[0012] The above technical solution is further configured as follows: a limiting snap ring is provided on one end of the steering knuckle body close to the extension portion and extends toward the inner diameter of the mounting hole, and a limiting snap groove adapted to the limiting snap ring is provided on the outer wall of the elastic sleeve.
[0013] By adopting the above technical solution, the steering knuckle body and the elastic sleeve can be axially limited by clamping the limiting clamp ring into the limiting clamping groove, thereby further improving the stability.
[0014] The above technical solution is further configured as follows: a steering knuckle arm, a shock absorber mounting arm, a brake mounting portion and a swing arm connecting arm are also provided on the steering knuckle body; a steering tie rod connecting hole is provided at one end of the steering knuckle arm away from the mounting hole; a shock absorber mounting hole is provided at one end of the shock absorber mounting arm away from the mounting hole; two brake mounting holes are provided at one end of the brake mounting portion away from the mounting hole; and a swing arm connecting hole is provided at one end of the swing arm connecting arm away from the mounting hole.
[0015] By adopting the above technical scheme, the steering knuckle arm is connected to the steering tie rod of the car through the steering tie rod connecting hole. When the car turns, the steering tie rod drives the steering knuckle arm to rotate, and the steering knuckle arm drives the steering knuckle body and the wheel hub bearing to rotate, thereby driving the wheel to turn; the shock absorber mounting arm is connected to the shock absorber through the shock absorber mounting hole; the brake mounting part is connected to the brake through two brake mounting holes; and the swing arm connecting arm is connected to the swing arm through the swing arm connecting hole.
[0016] The utility model has the beneficial effects of: being able to simultaneously provide circumferential and axial buffering and shock reduction for the hub bearing connection, and having a slower flow rate when injecting lubricating oil so that the oil volume is more evenly distributed. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0018] Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the utility model;
[0019] Figure 3 It is a cross-sectional view in an embodiment of the utility model;
[0020] Figure 4 It is a schematic diagram of the structure of the steering knuckle body in the embodiment of the utility model;
[0021] Figure 5 It is a structural schematic diagram of the elastic sleeve in the embodiment of the utility model. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] like Figure 1-5As shown in, a car steering knuckle with good shock absorption effect comprises a steering knuckle body 1, a mounting hole 2 is provided in the middle of the steering knuckle body 1, an elastic sleeve 3 is fitted on the inner wall of the mounting hole 2, a first annular groove 31 is provided on the inner wall of the middle of the elastic sleeve 3, a reinforcement ring 4 is installed in the first annular groove 31, and an extension part 32 extending toward the outer diameter is provided at one end of the elastic sleeve 3 close to the hub bearing connection, and the extension part 32 abuts against the outer side surface of the mounting hole 2 of the steering knuckle body 1. A first oil hole 10 is provided on the steering knuckle body 1 facing the mounting hole 2, a second oil hole 30 connected to the first oil hole 10 is provided on the outer wall of the elastic sleeve 3, a second annular groove 33 connected to the second oil hole 30 is provided on the inner wall of the first annular groove 31 of the elastic sleeve 3, a sponge gasket 5 is installed in the second annular groove 33, and a plurality of third oil holes 40 are evenly distributed circumferentially on the reinforcement ring 4 at the part abutting against the sponge gasket 5. A plurality of blocks 34 are evenly distributed on the side of the extension part 32 near the mounting hole 2, and a slot 11 adapted to the block is provided on the steering knuckle body 1. A limit snap ring 12 is provided on the end of the steering knuckle body 1 near the extension part 32 and extends toward the inner diameter of the mounting hole 2, and a limit snap ring 35 adapted to the limit snap ring 12 is provided on the outer wall of the elastic sleeve 3. The steering knuckle body 1 is also provided with a steering knuckle arm 6, a shock absorber mounting arm 7, a brake mounting part 8 and a swing arm connecting arm 9. The steering knuckle arm 6 is provided with a steering tie rod connecting hole 60 at one end away from the mounting hole 2, the shock absorber mounting arm 7 is provided with a shock absorber mounting hole 70 at one end away from the mounting hole 2, the brake mounting part 8 is provided with two brake mounting holes 80 at one end away from the mounting hole 2, and the swing arm connecting arm 9 is provided with a swing arm connecting hole 90 at one end away from the mounting hole 2; the elastic sleeve 3 can be made of elastic materials such as rubber.
[0024] In the technical scheme of the above embodiment, the elastic sleeve 3 and the reinforcement ring 4 are sleeved on the periphery of the wheel hub bearing, and the extension portion 32 of the elastic sleeve 3 is located between the outer side surface of the mounting hole 2 of the steering knuckle body 1 and the side surface of the wheel hub bearing. By utilizing the elastic force of the elastic sleeve 3, the vibration impact of the wheel hub bearing connection can be offset and absorbed in the circumferential and axial directions, thereby improving the steering stability of the wheel; when lubricating oil is added to the steering knuckle, the lubricating oil is injected from the first oil hole 10, and then flows to the sponge gasket 5 through the second oil hole 30 and is absorbed by the sponge gasket 5. When the sponge gasket 5 is full or vibrates, it penetrates into the wheel hub bearing through the third oil hole 40; because the sponge gasket 5 can absorb and buffer the circumferential diffusion, the flow rate is slowed down and the oil distribution is made more uniform.
Claims
1. An automobile steering knuckle with good shock absorption effect, comprising a steering knuckle body, wherein a mounting hole is provided in the middle of the steering knuckle body, and characterized in that: An elastic sleeve is fitted on the inner wall of the mounting hole, a first annular groove is provided on the middle inner wall of the elastic sleeve, a reinforcement ring is installed in the first annular groove, an extension portion extending toward the outer diameter is provided at one end of the elastic sleeve close to the wheel hub bearing connection, and the extension portion abuts against the outer side surface of the mounting hole of the steering knuckle body.
2. The automobile steering knuckle with good shock absorption effect according to claim 1, characterized in that: A first oil hole is provided on the steering knuckle body toward the mounting hole, a second oil hole connected to the first oil hole is provided on the outer wall of the elastic sleeve, a second annular groove connected to the second oil hole is provided on the inner wall of the first annular groove of the elastic sleeve, a sponge gasket is installed in the second annular groove, and a plurality of third oil holes are evenly distributed in the circumferential direction of the reinforcement ring at the part abutting against the sponge gasket.
3. The automobile steering knuckle with good shock absorption effect according to claim 2, characterized in that: A plurality of clamping blocks are evenly distributed in the circumferential direction on the side surface of the extension portion close to the mounting hole, and a clamping groove adapted to the clamping block is provided on the steering knuckle body.
4. The automobile steering knuckle with good shock absorption effect according to claim 3, characterized in that: A limiting snap ring is provided at one end of the steering knuckle body close to the expansion portion and extends toward the inner diameter of the mounting hole, and a limiting snap groove matched with the limiting snap ring is provided on the outer wall of the elastic sleeve.
5. An automobile steering knuckle with good shock absorption effect according to any one of claims 1 to 4, characterized in that: The steering knuckle body is also provided with a steering knuckle arm, a shock absorber mounting arm, a brake mounting portion and a swing arm connecting arm. The steering knuckle arm is provided with a steering tie rod connecting hole at one end away from the mounting hole, the shock absorber mounting arm is provided with a shock absorber mounting hole at one end away from the mounting hole, the brake mounting portion is provided with two brake mounting holes at one end away from the mounting hole, and the swing arm connecting arm is provided with a swing arm connecting hole at one end away from the mounting hole.