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Shock absorber piston assembly and self-adjusting damping shock absorber comprising same

A piston assembly and automatic adjustment technology, which is applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problems of affecting the shock absorption effect, unadjustable damping, and high cost, so as to facilitate popularization and use and reduce processing Difficulty, the effect of reducing production costs

Inactive Publication Date: 2009-10-14
柳州市江航工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing hydraulic damping shock absorbers, the damping size is generally not adjustable, which not only greatly affects the damping effect, but also is difficult to adapt to various road conditions; therefore, in recent years, many engineers and technicians They are all studying shock absorbers with adjustable damping. These shock absorbers generally have an orifice on the piston, and the flow of the orifice is adjusted through an external control mechanism, so as to achieve the purpose of adjusting the damping force. The operation is relatively Troublesome, complex structure, high cost, and short life, so it has not been widely used

Method used

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  • Shock absorber piston assembly and self-adjusting damping shock absorber comprising same
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  • Shock absorber piston assembly and self-adjusting damping shock absorber comprising same

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Experimental program
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Effect test

Embodiment 1

[0034] Figure 1 ~ Figure 2 Disclosed in is a shock absorber piston assembly, which is mainly composed of a main piston 31, an auxiliary working cylinder 32 and a floating piston, the inner hole of the main piston 31 is fixedly connected with the outer circle of the auxiliary working cylinder 32, and the outer circle of the auxiliary working cylinder 32 One end is fixedly connected with a piston rod 33, and a snap ring 34, a floating piston, a floating piston return spring, and a spring seat 39 are respectively installed in the auxiliary working cylinder 32, and a throttling valve is arranged on the inner cylinder wall of the auxiliary working cylinder 32 in the axial direction. Groove, the cross-sectional area of ​​the throttling groove changes gradually, that is, its longitudinal cross-sectional shape is a trapezoidal structure.

[0035] The above-mentioned floating piston is composed of a compression floating piston 35 and a recovery floating piston 36 installed at both ends...

Embodiment 2

[0042] Figure 7 Disclosed in is another shock absorber piston assembly, which has the function of automatically adjusting damping only in the recovery stroke. The basic structure of the piston assembly is the same as that of Embodiment 1. The working cylinder 32 is composed of a floating piston, the difference is that the compression stroke assembly is cancelled, so that the structure is simpler and the production cost is lower, that is, the floating piston is a recovery floating piston 36 with a check valve B361, The floating piston return spring is a return floating piston return spring 38, and the throttling groove is a return throttling groove 322, and the longitudinal section shape of the restoration throttling groove 322 is a trapezoidal structure with a large top and a small bottom.

[0043] As a modification of the second embodiment, the longitudinal cross-sectional shape of the restoration throttle groove 322 may also be a multi-level stepped structure, that is, the ...

Embodiment 3

[0045] Figure 8 Disclosed in is a double-barrel type automatic adjustment damping shock absorber containing a shock absorber piston assembly. The shock absorber includes an oil storage cylinder 1, a working cylinder 2, a piston assembly 3 and an elastic element connected to the frame. The piston described above is the shock absorber piston assembly 3 described in Embodiment 1. The outer circle of the main piston 31 of the shock absorber piston assembly 3 is in sliding fit with the inner cylinder wall of the working cylinder 2, and the piston rod 33 extends out of the working cylinder 2. And connect with frame.

[0046] The shock absorber piston assembly 3 is mainly composed of a main piston 31, an auxiliary working cylinder 32 and a floating piston, the inner hole of the main piston 31 is fixedly connected with the outer circle of the auxiliary working cylinder 32, and one end of the auxiliary working cylinder 32 is fixedly connected with a The piston rod 33 and the auxiliar...

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Abstract

A shock absorber piston assembly and a self-adjusting damping shock absorber comprising same relate to a shock absorber part and a shock absorber; the shock absorber piston assembly comprises a main piston, a floating piston, and an auxiliary working cylinder; the inner hole of the main piston is fixedly connected with the excircle of the auxiliary working cylinder; one end of the auxiliary working cylinder is fixedly connected with a piston rod; a clamping ring, the floating piston and a floating piston reset spring are respectively installed in the auxiliary working cylinder; and the inner cylinder wall of the auxiliary working cylinder is axially provided with a throttling groove; the shape of the longitudinal section of the throttling groove is a trapezoid or a multi-level ladder-shaped structure. The self-adjusting damping shock absorber comprising the shock absorber piston assembly comprises an oil storage tank, a working cylinder, a piston assembly, and a shock absorber spring, and the piston assembly is the shock absorber piston assembly. The invention can automatically adjust the damping, has very good shock-absorbing effect, and also has the advantages of simple structure, low cost, reliable performance, long service life, and the like, and ensures the running ride comfort and the stability of the vehicle.

Description

Technical field: [0001] The invention relates to a shock absorber component and a shock absorber, in particular to a shock absorber piston assembly and an automatically adjustable damping shock absorber containing the piston assembly. Background technique: [0002] Shock absorber is an important part of a car, and its performance directly affects the operating stability, comfort and safety of the car. At present, hydraulic damping shock absorbers are generally used in parallel with elastic elements in automobile suspension systems, and the energy of automobile vibration is consumed by the resistance of liquid flow. In the existing hydraulic damping shock absorbers, the damping size is generally not adjustable, which not only greatly affects the damping effect, but also is difficult to adapt to various road conditions; therefore, in recent years, many engineers and technicians They are all studying shock absorbers with adjustable damping. These shock absorbers generally have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/32F16F9/22B60G13/08
Inventor 陈蕊建
Owner 柳州市江航工贸有限公司
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