Hydraulic buffering protection device for automobile damper

A technology of hydraulic buffer and protection device, applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problems such as the reduction and disappearance of the limit buffer function and the reduction of the service life of the shock absorber, so as to avoid abnormality. The effect of noise reduction, impact reduction, and bending resistance increase

Active Publication Date: 2013-06-12
JINZHOU LEADER SHOCK ABSORBER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the service life of the shock absorber increases, the limit buffer function of the components decreases or disappears due to material aging or sports fatigue, resulting in a reduction in the service life of the shock absorber

Method used

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  • Hydraulic buffering protection device for automobile damper
  • Hydraulic buffering protection device for automobile damper
  • Hydraulic buffering protection device for automobile damper

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Embodiment Construction

[0012] The following is a detailed description in conjunction with the accompanying drawings: as shown in the figure, the hydraulic buffer protection device for automobile shock absorbers is provided with a piston rod assembly 2 in the working cylinder 1, and a limit clip spring 3 is installed at the limit groove of the piston rod, and The piston rod of the rod assembly 2 is equipped with a limit seat 4, a limit buffer pad 5 and a floating piston assembly 6. The floating piston assembly 6 is composed of a bush 6a, a floating piston 6b and a piston ring 6c; There are several small through holes 6a1, the bush 6a made of three-layer composite material is pressed into the small through hole 6a1 of the floating piston, the floating piston 6b is in clearance fit with the piston rod of the piston rod assembly 2, the piston ring 6c is in contact with the working Cylinder 1 clearance fit, limit cushion 5 and the piston rod of piston rod assembly 2 interference fit, fixed on the end of l...

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PUM

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Abstract

The invention discloses a hydraulic buffering protection device for an automobile damper. A piston rod assembly is arranged in a working cylinder; a limiting clamp spring is arranged in a piston rod limiting groove; a limiting base, a limiting cushion and a floating piston assembly which can move in a reciprocating way along the axial directions of the piston rod and the working cylinder are arranged on the piston rod of the piston rod assembly; the limiting cushion is in interference fit with the piston rod of the piston rod assembly, and is fixed on the end part of the limiting base; a guide sleeve and a positioning sleeve are sleeved on the piston rod of the piston rod assembly, and are fixed on the inner cavity of the working cylinder; and a reset spring is arranged between the floating piston assembly and the positioning sleeve. Due to the innovative adoption of the structure, the extreme buffering stroke is longer, the impact on damper parts at extreme positions can be effectively reduced, and the service life of the damper is prolonged. The floating piston is buffered by adopting a hydraulic small through hole throttling way, the buffering resistance can change along with the change of the speed, and the extreme damping performance can be adjusted according to different overall automobile parameters to match with overall automobile movement, so that the riding comfort is improved greatly, and meanwhile, oil in the upper cavity of the floating piston can be supplied immediately through a small through hole in the compressing process of the damper.

Description

technical field [0001] The invention relates to a hydraulic buffer protection device for an automobile shock absorber. Background technique [0002] The existing limit buffer protection structure of automobile shock absorber is mainly mechanical. Its main function is to generate a certain amount of stretching resistance when the wheel suddenly leaves the ground and the shock absorber is stretched to the maximum, which plays a certain buffering role. Avoid damage to internal parts due to rigid impact of components, and prolong the service life of the shock absorber. However, due to the short buffer stroke of the mechanical structure, the protection against the large impact of the shock absorber is limited, and the problem of abnormal noise of the shock absorber is very easy to occur. As the service life of the shock absorber increases, the limit buffer function of the components decreases or disappears due to material aging or sports fatigue, resulting in a reduction in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/58F16F9/32
Inventor 王一臣薛玉斌张晓龙王健
Owner JINZHOU LEADER SHOCK ABSORBER
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