Automotive damping suspension bushing with wear-resistant structure

Abstract

The utility model discloses a vehicle shock-absorbing suspension bushing with a wear-resistant structure, which comprises a bushing body, a support inner pipe is arranged in the bushing body, cavities are formed in the bushing body at equal intervals, shock-absorbing components are arranged in the cavities, noise-reducing components are arranged at two ends of the bushing body, and a wear-resistant coating is arranged on the outer side of the bushing body. A wear-resisting assembly is arranged between the interior of the lining body and the outer side of the supporting inner pipe. The utility model aims to solve the problems that the rubber is repeatedly stretched under the long-time torque due to the fact that the rubber is generally and wholly adopted by the existing bushing for damping, so that fatigue cracks of rubber materials are caused by frequent stretching, and the elasticity and the durability of the rubber materials are gradually lost.

Description

Technical Field

[0001] The utility model relates to the technical field of suspension bushings, in particular to a vehicle shock-absorbing suspension bushing with a wear-resistant structure. Background Art

[0002] Single-layer rubber bushings are commonly used in automobile suspensions. Due to space limitations, the rubber needs to maintain a certain thickness, so the radial stiffness requirements of the bushing can only be met by increasing the rubber hardness. However, since the torsional stiffness of the bushing is strongly correlated with the rubber hardness, the torsional stiffness will increase with the increase of rubber hardness. Excessive torsional stiffness of the bushing will have a certain impact on the comfort of the vehicle when passing through bumpy roads.

[0003] The existing bushing generally uses rubber as a whole for shock absorption. Under long-term torque, the rubber will be repeatedly stretched, and the frequent stretching will cause fatigue cracks in the rubber material, causing it to gradually lose elasticity and durability. Utility Model Content

[0004] The utility model aims to provide a vehicle shock-absorbing suspension bushing with a wear-resistant structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a bushing body, a supporting inner tube is arranged inside the bushing body, cavities are opened equidistantly inside the bushing body, a shock absorbing assembly is arranged inside the cavity, noise reduction assemblies are arranged at both ends of the bushing body, a wear-resistant coating is arranged on the outside of the bushing body, and a wear-resistant assembly is arranged between the inside of the bushing body and the outside of the supporting inner tube.

[0006] As a further preferred embodiment of the present technical solution, the shock absorbing assembly includes an anti-seismic spring, and the anti-seismic spring is fixedly installed inside the cavity.

[0007] As a further preferred embodiment of the present technical solution, the shock absorbing assembly further includes two damping pads, and the two damping pads are arranged inside the cavity and located outside the anti-seismic spring.

[0008] As a further preferred embodiment of the present technical solution, the wear-resistant component includes an oil injection hole, and the inside of the bushing body is equidistantly penetrated with oil injection holes.

[0009] As a further preferred embodiment of the present technical solution, the wear-resistant component further includes an oil inlet hole, the inner wall of the bushing body is provided with oil inlet holes at equal intervals, and one end of the oil inlet hole extends to the inside of the oil filling hole.

[0010] As a further preferred embodiment of the present technical solution, the noise reduction component includes a first elastic pad, and the first elastic pad is fixedly connected to one end of the bushing body.

[0011] As a further preferred embodiment of the present technical solution, the noise reduction assembly further includes a second elastic pad, and the second elastic pad is fixedly connected to one end of the bushing body away from the first elastic pad.

[0012] The utility model provides a vehicle shock-absorbing suspension bushing with a wear-resistant structure, which has the following beneficial effects:

[0013] (1) The utility model further reduces vibration by arranging a shock absorbing assembly in the internal cavity of the bushing body, thereby alleviating the direct effect of torque on the bushing body, thereby extending the service life of the bushing body and increasing the durability of the bushing body.

[0014] (2) The utility model injects lubricating oil into the interior of the wear-resistant component, and then the wear-resistant component evenly distributes the lubricating oil on the contact surface between the support inner tube and the bushing body, so that the lubricating oil can form a lubricating film on the contact surface between the support inner tube and the bushing body, thereby reducing the friction between the moving parts and effectively reducing the degree of wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view structural schematic diagram of the utility model;

[0017] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] In the figure: 1. bushing body; 2. wear-resistant coating; 3. first elastic pad; 4. supporting inner tube; 5. oil inlet hole; 6. oil filling hole; 7. cavity; 8. anti-vibration spring; 9. damping pad; 10. second elastic pad. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1-Figure 4As shown, in the present embodiment, a vehicle shock-absorbing suspension bushing with a wear-resistant structure includes a bushing body 1, a supporting inner tube 4 is arranged inside the bushing body 1, cavities 7 are equidistantly opened inside the bushing body 1, a shock-absorbing component is arranged inside the cavity 7, noise reduction components are arranged at both ends of the bushing body 1, a wear-resistant coating 2 is arranged on the outside of the bushing body 1, a wear-resistant component is arranged between the inside of the bushing body 1 and the outside of the supporting inner tube 4, the noise reduction component includes a first elastic pad 3, the first elastic pad 3 is fixedly connected to one end of the bushing body 1, and the noise reduction component also includes a second elastic pad 10, and the second elastic pad 10 is fixedly connected to one end of the bushing body 1 away from the first elastic pad 3.

[0022] First, when the bushing body 1 is twisted, the bushing body 1 is firstly damped by its own rubber properties, and then a damping component is provided in the internal cavity 7 of the bushing body 1 for further damping, thereby alleviating the direct impact of the torque on the bushing body 1, thereby extending the service life of the bushing body 1, thereby increasing the durability of the bushing body 1, and then injecting lubricating oil into the wear-resistant component, and then the wear-resistant component evenly distributes the lubricating oil on the contact surface between the support inner tube 4 and the bushing body 1, so that the lubricating oil can form a lubricating film on the contact surface between the support inner tube 4 and the bushing body 1, reducing the friction between the moving parts and effectively reducing the degree of wear, and then the first elastic pad 3 and the second elastic pad 10 are provided at both ends of the bushing body 1 to buffer the collision between the two ends of the bushing body 1 and the metal bracket, and finally the wear-resistant coating 2 is made of polyethylene material, which has good wear resistance and chemical corrosion resistance, and can effectively protect the surface of the rubber bushing body 1 from wear.

[0023] like Figure 1-Figure 4 As shown, the shock absorbing assembly includes an anti-seismic spring 8, which is fixedly installed inside the cavity 7. The shock absorbing assembly also includes two damping pads 9, which are arranged inside the cavity 7 and located on the outside of the anti-seismic spring 8.

[0024] When torsion occurs, the anti-vibration spring 8 is compressed and stretched to buffer the torsion force, and then the damping pad 9 can further buffer the torsion force, thereby achieving a better shock absorption effect.

[0025] like Figure 1-Figure 4 As shown, the wear-resistant component includes an oil filling hole 6, and the oil filling holes 6 are equidistantly opened inside the bushing body 1. The wear-resistant component also includes an oil inlet hole 5, and the inner wall of the bushing body 1 is equidistantly opened with oil inlet holes 5, and one end of the oil inlet hole 5 extends to the inside of the oil filling hole 6.

[0026] Lubricating oil is injected into the oil filling hole 6 and then enters the contact surface between the bushing body 1 and the supporting inner tube 4 through the oil inlet holes 5 equidistantly opened on one side of the oil filling hole 6, thereby forming a lubricating film, thereby increasing the durability of the bushing body 1.

[0027] The utility model provides a vehicle shock-absorbing suspension bushing with a wear-resistant structure, and the specific working principle is as follows: first, lubricating oil is injected into the oil filling hole 6, and then the lubricating oil enters the contact surface between the bushing body 1 and the supporting inner tube 4 through the oil inlet holes 5 equidistantly opened on one side of the oil filling hole 6, thereby forming a lubricating film, thereby increasing the durability of the bushing body 1, and then, when the bushing body 1 is twisted, shock absorption is first performed through the rubber properties of the bushing body 1 itself, and then the anti-vibration spring 8 in the internal cavity 7 of the bushing body 1 is compressed and stretched to buffer the twisting force, and then the damping pad 9 can be used to further buffer the twisting force, thereby achieving a better shock-absorbing effect, and then, the first elastic pad 3 and the second elastic pad 10 are provided at both ends of the bushing body 1 to buffer the collision between the two ends of the bushing body 1 and the metal bracket, and finally, the wear-resistant coating 2 is made of polyethylene material, polyethylene has good wear resistance and chemical corrosion resistance, and can effectively protect the surface of the rubber bushing body 1 from wear.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle shock-absorbing suspension bushing with a wear-resistant structure, comprising a bushing body (1), characterized in that: The interior of the bushing body (1) is provided with a supporting inner tube (4), the interior of the bushing body (1) is provided with cavities (7) at equal intervals, the interior of the cavity (7) is provided with a shock absorbing component, both ends of the bushing body (1) are provided with noise reduction components, the exterior of the bushing body (1) is provided with a wear-resistant coating (2), and a wear-resistant component is provided between the interior of the bushing body (1) and the exterior of the supporting inner tube (4).

2. The vehicle shock-absorbing suspension bushing with a wear-resistant structure according to claim 1, characterized in that: The shock absorbing assembly comprises an anti-shock spring (8), and the anti-shock spring (8) is fixedly installed inside the cavity (7).

3. The vehicle shock-absorbing suspension bushing with a wear-resistant structure according to claim 2, characterized in that: The shock absorbing assembly further comprises two damping pads (9), which are arranged inside the cavity (7) and outside the anti-seismic spring (8).

4. The vehicle shock-absorbing suspension bushing with a wear-resistant structure according to claim 1, characterized in that: The wear-resistant component comprises an oil injection hole (6), and the inside of the bushing body (1) is provided with oil injection holes (6) at equal intervals.

5. The vehicle shock-absorbing suspension bushing with a wear-resistant structure according to claim 4, characterized in that: The wear-resistant component also includes an oil inlet hole (5). The inner wall of the bushing body (1) is provided with oil inlet holes (5) at equal intervals, and one end of the oil inlet hole (5) extends to the inside of the oil injection hole (6).

6. The vehicle shock-absorbing suspension bushing with a wear-resistant structure according to claim 1, characterized in that: The noise reduction component comprises a first elastic pad (3), wherein the first elastic pad (3) is fixedly connected to one end of the bushing body (1).

7. The vehicle shock-absorbing suspension bushing with a wear-resistant structure according to claim 6, characterized in that: The noise reduction component further comprises a second elastic pad (10), wherein the second elastic pad (10) is fixedly connected to an end of the bushing body (1) away from the first elastic pad (3).

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