A car shock absorber based on variable friction damper

Abstract

The invention belongs to the technical field of dampers, in particular to a vehicle shock absorber based on variable-friction-force damper. The vehicle shock absorber comprises a bottom plate, an assembly shell, a triggering plate, a damping spring, a driving mechanism, a driving rod and a shaft bush; when people use the shock absorber designed in the invention, during a shock process, when the triggering plate moves downwards, the triggering plate can drive the driving rod to move downwards through the shaft bush; the driving rod moves downwards to enable pressing force transmitted by the driving rod to a friction arc plate to reach a stable state; friction force of the friction arc plate to a first rack reaches a stable state; meanwhile, the driving rod which moves downwards can also drive a corresponding first gear to rotate; and the first gear can drive a corresponding first rack to move during rotating; the first rack rubs the corresponding friction arc plate during a moving process; moving speed of the first rack can be lowered through the friction force; and a damping effect can be realized through the friction force.

Description

technical field [0001] The invention belongs to the technical field of shock absorbers, in particular to an automobile shock absorber based on a variable friction damper. Background technique [0002] At present, the shock absorption system of automobiles is composed of springs and shock absorbers. The shock absorber is not used to support the weight of the car body, but to suppress the shock when the spring rebounds after absorbing the shock and absorb the energy of the road impact. The spring plays the role of easing the impact, changing "one impact with large energy" into "multiple impacts with small energy", and the shock absorber gradually reduces "multiple impacts with small energy". If you've ever driven a car with broken shock absorbers, you can feel the bouncing after every pothole and bump that the shock absorbers are designed to dampen. Without a shock absorber, the rebound of the spring cannot be controlled. When the car encounters a rough road, there will be s...

AI Technical Summary

Problems solved by technology

Without a shock absorber, the rebound of the spring cannot be controlled. When the car encounters a rough road, there will be serious bounce, and the vibration of the spring up and down when cornering will also cause the loss of tire grip and tracking.

However, it is impossible for ordinary shock absorbers to absorb all the shock when the spring rebounds after absorbing the shock and absorb the impact of the road surface; so it is very necessary to design a shock absorber with better shock absorption effect.

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