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 of shock absorbers and poor shock absorption effects, and improve the shock absorption effect , improve ride comfort, protect the effect of damage

Active Publication Date: 2020-06-16
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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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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PUM

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Abstract

The invention discloses a damping piston assembly which comprises a piston body, a sliding sleeve and an elastic part. The piston body is provided with a damping channel used for communicating with anupper chamber and a lower chamber of an outer barrel. The bottom of the damping channel is provided with multiple sets of lower liquid passing holes arranged in the axial direction and used for communicating with the lower chamber of the outer barrel. The sliding sleeve is arranged on the piston body in a sleeving manner by being capable of sliding up and down. The elastic part provides elastic force for the sliding sleeve, wherein the elastic force is used for limiting upward sliding of the sliding sleeve. When the piston assembly moves downwards in the outer barrel, the sliding sleeve is driven by damping liquid in the lower chamber of the outer barrel to advance relative to the piston body, and therefore the lower liquid passing holes are closed one by one from bottom to top. Accordingto the damping piston assembly, the damping in a damper can be self-adaptively changed according to road conditions, adaptability to road conditions is good, damping force is gradually increased in the damping process, damping force changes are quite smooth, the damping effect is improved, and riding comfort is improved; and the piston assembly can effectively prevented from bottoming out in theouter barrel under the condition that roads are jolty.

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 Applications(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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