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Damping Piston Assembly

A technology of damping pistons and components, applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problems of poor adaptability and poor shock absorption effect of shock absorbers, and improve the shock absorption effect , improve ride comfort, protect the effect of damage

Active Publication Date: 2021-11-09
DFSK MOTOR LTD CHONGQING BRANCH CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The damping effect of the shock absorber will directly affect the driving stability of the car and the life of other parts. The commonly used two-way acting barrel shock absorber usually has a constant damping damping. The shock absorber is adaptive to different driving conditions. Poor performance, poor shock absorption

Method used

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  • Damping Piston Assembly
  • Damping Piston Assembly

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Effect test

Embodiment Construction

[0020] figure 1 It is a schematic diagram of the structure of the damping piston assembly; figure 2 It is a structural schematic diagram of the damping piston assembly applied in the shock absorber;

[0021] As shown in the figure: this embodiment provides a shock-absorbing piston assembly, including a sliding column 1, an outer cylinder 2, a piston assembly and a main shock-absorbing spring 3, the sliding column is sleeved inside the outer cylinder, and the piston assembly is connected to the sliding The main spring 3 is placed on the column and is axially sliding and sealingly matched with the inner circle of the outer cylinder. The shock-absorbing main spring 3 is sleeved on the sliding column and the outer cylinder at the same time to provide elastic buffer force for the sliding column. The piston assembly includes a piston body, a sliding sleeve 4 and an elastic 5, the piston body is connected to the sliding column, the piston body has a damping channel 6 connected to t...

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Abstract

The invention discloses a shock-absorbing piston assembly, which comprises a piston body, a sliding sleeve and an elastic member. The piston body has a damping channel for communicating with the upper and lower chambers of an outer cylinder. The bottom of the damping channel has several sets arranged axially. And it is used to communicate with the lower liquid hole of the lower chamber of the outer cylinder. The sliding sleeve can slide up and down on the piston body. The elastic member provides the elastic force for the sliding sleeve to limit its upward sliding. The piston assembly is inside the outer cylinder When going down, the sliding sleeve is driven by the damping fluid in the lower chamber of the outer cylinder to move upward relative to the piston body and close the lower liquid passage holes one by one from bottom to top; the shock-absorbing piston assembly of the present invention can adaptively change the shock-absorbing force in the shock absorber according to the road conditions. Damping, better adaptability to road conditions, the damping force gradually increases during the shock absorbing process, and the damping force changes more smoothly, which improves the shock absorbing effect and ride comfort. The piston assembly can effectively prevent the piston assembly in bumpy road conditions. Bottom inside the outer barrel.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing and relates to a damping piston assembly. Background technique [0002] In order to quickly attenuate the vibration of the frame and the body and improve the ride comfort and comfort of the car, the car suspension system is equipped with a shock absorber, and the two-way acting barrel shock absorber is widely used in the car. The damping effect of the shock absorber will directly affect the driving stability of the car and the life of other parts. The commonly used two-way acting barrel shock absorber usually has a constant damping damping. The shock absorber is adaptive to different driving conditions. Poor performance, poor shock absorption effect. [0003] Therefore, based on the above problems, there is a need for a shock absorbing piston assembly, which can gradually change the shock absorbing damping in the shock absorber based on road conditions, which has better adaptabil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/32F16F9/34F16F9/512
CPCF16F9/3214F16F9/3405F16F9/5123F16F9/5126F16F2222/12
Inventor 周林熊恩林郭时松
Owner DFSK MOTOR LTD CHONGQING BRANCH CO
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