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Bushing for automotive trailing arm

A trailing arm and bushing technology, which is applied to springs, springs, springs/shock absorbers made of plastic materials, can solve the problems of reducing the fatigue performance of bushings, reducing the radial thickness of rubber main springs, and achieving improved life, improving fatigue performance, and ensuring fatigue life

Active Publication Date: 2016-10-12
NINGBO TUOPU GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing automobile trailing arm bushing generally sets a nylon drum on the outer wall of the inner tube, and then vulcanizes the inner tube between the nylon drum and the outer tube through the rubber main spring to install the inner tube into the outer tube, and sets a nylon drum on the outer wall of the inner tube. Nylon bulges can increase the radial stiffness of the bushing, but the presence of nylon bulges reduces the radial thickness of the rubber main spring, thereby reducing the fatigue performance of the bushing

Method used

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  • Bushing for automotive trailing arm
  • Bushing for automotive trailing arm
  • Bushing for automotive trailing arm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one: if Figure 1 to Figure 3 As shown, an automobile trailing arm bushing includes an outer tube 1 and an inner tube 2, the inner tube 2 is arranged in the outer tube 1, and the outer tube 1 is provided with two mounting seats 3 for installing the inner tube 2, two The mounting seat 3 is arranged symmetrically in the outer tube 1, the outer wall of the mounting seat 3 and the inner wall of the outer tube 1 are vulcanized and connected by a rubber main spring 4, and an inner tube mounting cavity 31 is formed between the two mounting seats 3. The inner tube 2 is inserted into the inner tube installation cavity 31 , and the inner tube 2 is tightly matched with the two mounting seats 3 respectively.

[0021] In this specific embodiment, the outer side wall and the inner side wall of the mounting seat 3 are both arc-shaped walls matching the curvature of the inner side wall of the outer tube 1 . The outer side wall and the inner side wall of the mounting seat 3 ...

Embodiment 2

[0029] Embodiment 2: other parts are the same as the embodiment, the difference is that the material of the mounting seat 3 is aluminum. Mounting seat 3 is made of aluminum, which can reduce the weight of the product while ensuring the strength, and achieve the purpose of light weight. In addition, aluminum does not require anti-corrosion treatment, which reduces the cost compared with iron parts and improves the competitiveness of parts. .

[0030] In this particular embodiment, the material of the mounting block 22 is aluminum. The mounting block 22 is made of aluminum, which can reduce the weight of the product while ensuring the strength, and achieve the purpose of light weight. In addition, the aluminum does not need anti-corrosion treatment, which reduces the cost compared with iron parts and improves the competitiveness of the parts. .

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PUM

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Abstract

The invention discloses a bushing for an automotive trailing arm. The bushing for the automotive trailing arm comprises an outer pipe and an inner pipe, wherein the inner pipe is arranged in the outer pipe. The bushing for the automotive trailing arm is characterized in that two mounting bases used for mounting the inner pipe is arranged in the outer pipe; the two mounting bases are symmetrically arranged in the outer pipe; outer side walls of the mounting bases are connected with the inner side wall of the outer pipe through rubber main springs in a vulcanization manner; the two mounting bases are enclosed and arranged to form an inner pipe mounting cavity; the inner pipe is inserted into the inner pipe mounting cavity; and further, the inner pipe is in tight fit with the two mounting bases respectively. The bushing for the automatic trailing arm has the advantages that the inner pipe is connected with the rubber main springs through assembly structures; as the rubber main springs have elasticity, at this moment, the different pre-compression amounts of the rubber main springs under the same structures of the rubber main springs can be realized through regulating the size of the structure of the inner pipe, so as to realize the maximum pre-compression amount of the rubber main springs; even though the pre-compression amounts of the rubber main springs are greater, in the condition that the rubber main springs are thick enough, the high enough radial rigidity of the bushing can be also guaranteed; and moreover, the fatigue properties of the bushing of the automotive trailing arm can be furthest improved.

Description

technical field [0001] The invention relates to an automobile bushing, in particular to an automobile trailing arm bushing. Background technique [0002] Existing automobile trailing arm bushings generally consist of three parts: an outer tube, an inner tube and a rubber main spring, wherein the outer tube is connected to the trailing arm, and the inner tube is connected to the vehicle body or vehicle frame through bolts. In order to meet the requirements of driving comfort and safety, the bushing of the automobile trailing arm needs to bear a huge side load and a large torsion angle. The performance and fatigue requirements of the arm bushing are higher. [0003] The existing automobile trailing arm bushing generally sets a nylon drum on the outer wall of the inner tube, and then vulcanizes the inner tube between the nylon drum and the outer tube through the rubber main spring to install the inner tube into the outer tube, and sets a nylon drum on the outer wall of the inn...

Claims

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Application Information

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IPC IPC(8): F16F1/38
CPCF16F1/38F16F1/3842
Inventor 王磊
Owner NINGBO TUOPU GROUP CO LTD