Air spring assembly

An air spring and assembly technology, which is applied in the direction of springs, spring/shock absorbers, gas shock absorbers, etc., can solve the problems that the layout space is difficult to meet the requirements, and the space occupied by the air spring assembly increases.

Active Publication Date: 2020-10-20
CHINA FIRST AUTOMOBILE
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  • Abstract
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  • Application Information

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Problems solved by technology

However, because the air spring assembly needs to wrap the upper suspension, the occupied space of the entire air spri...

Method used

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Embodiment Construction

[0029] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the accompanying drawings only show some but not all of the parts related to the present invention.

[0030] like figure 1 and figure 2 As shown, this embodiment provides an air spring assembly, including a casing, a piston rod 2 and an upper suspension, wherein the casing includes a first casing 11 and a compression chamber 13 that is sealed and connected with the first casing 11 to form a compression chamber 13 . In the second housin...

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Abstract

The invention relates to the field of vehicles and discloses an air spring assembly comprising a shell, a piston rod and an upper suspension. One end of the piston rod penetrates through the shell andis connected to the upper suspension. The piston rod is sleeved with a seal assembly. The seal assembly is clamped between the upper suspension and the outer wall of the shell, so that the upper suspension does not make contact with compressed air in the shell throughout in the axial moving process of the piston rod. An installation cavity is formed in the outer wall of the shell in a concave mode. The upper suspension and the seal assembly are both arranged in the installation cavity. According to the air spring assembly, the upper suspension is arranged outside the shell, the upper suspension does not make contact with the compressed air in the shell throughout in the axial moving process of the piston rod through the seal assembly, durability of the upper suspension can be ensured, anddynamic stiffness and static stiffness of the upper suspension can also be lowered to a certain extent. In addition, the upper suspension and the seal assembly are both arranged in the installation cavity formed in the outer wall of the shell in the concave mode, and the occupied space of the air spring assembly is lowered as far as possible.

Description

technical field [0001] The present invention relates to the field of vehicles, in particular to an air spring assembly. Background technique [0002] For the air spring assembly in which the air spring and the shock absorber are integrated, the connection position between the upper suspension and the piston rod of the air spring assembly needs to be sealed. At present, there are mainly the following two methods to solve the above technical problems. [0003] The first is to use a pressure-bearing upper suspension. The upper suspension includes an upper suspension body made of rubber, and the upper suspension body with sealing performance is used as a part of the sealing assembly of the air spring structure, that is, the sealing assembly includes two seals ring and upper suspension body. However, during the working process of the vehicle, the upper mount always bears the internal pressure of the air spring, which has a great influence on the durability of the upper mount, an...

Claims

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Application Information

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IPC IPC(8): F16F9/02F16F9/36F16F9/32
CPCF16F9/0209F16F9/0236F16F9/361F16F9/3235F16F9/54B60G2204/128B60G15/12B60G2202/314B60G13/003B60G2204/1262
Inventor 李耀超李俊伟张洋郑文博单帅
Owner CHINA FIRST AUTOMOBILE
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