car shock absorber

Abstract

The invention discloses an automobile damper which comprises a damper cylinder, a piston assembly, a sealing element, an upper connection installation hole and a lower connection installation hole. One part of a piston is arranged in a tube body, and a sealing element is arranged at the connection position of the damping tube and the piston. The damper is further provided with a dustproof device formed by a flexible portion and a rigid portion. By means of the technical scheme, the automobile damper is capable of effectively resolving the technical problem in the prior art that service life is reduced due to oil leakage caused by the fact that a piston rod and an oil seal are scratched due to the fact that dust or silt deposits on the oil seal and the piston rod through a lower opening of an open type dustproof cover, the damper is blocked and cannot work normally under severe conditions, and the comfortable performance of a whole automobile is greatly affected. The automobile damper further has the advantages of being good in dustproof effect, long in service life, low in manufacture cost, good in working stability and the like.

Description

technical field [0001] The invention belongs to the technical field of automobile parts manufacturing, and in particular relates to an automobile shock absorber. Background technique [0002] At present, shock absorbers are widely used in automobile suspension systems. The principle is that when the frame and the axle reciprocate relative to each other and the piston reciprocates in the cylinder barrel of the shock absorber, the oil in the shock absorber shell will repeatedly flow from the inner cavity through some narrow pores to the other. a cavity. At this time, the friction between the liquid and the inner wall and the internal friction of the liquid molecules form a damping force on the vibration. [0003] In order to provide the comfort of the vehicle, the chassis system of the car uses a shock absorber for shock absorption and buffering. The elastic element in the shock absorber suspension system vibrates due to impact. In order to improve the ride comfort of the ca...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that since the dust cover in the prior art is open and has a certain gap with the outer cylinder of the shock absorber, dust or silt will be deposited in the open dust cover through the lower opening. On the oil seal and piston rod, it will cause scratches on the piston rod and oil seal, resulting in oil leakage, thereby reducing the service life; it will cause the shock absorber to lock, and in severe cases, the shock absorber will not work normally, greatly affecting the comfort of the vehicle. To solve the technical problems such as excessive long-term extrusion of the dust cover and damage, an automobile shock absorber is provided

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