Universal shock absorber valve seat and shock absorber

A shock absorber, a generalized technology, applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problem of small damping adjustment range of shock absorber valve seat, various types of shock absorber valve seat, and inconvenience Issues such as production consistency management and control, to achieve the effects of reducing production management costs, realizing generalization, and increasing the damping adjustment range

CN113757294AActive Publication Date: 2021-12-07ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-12-07

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Abstract

The invention relates to a universal shock absorber valve seat and a shock absorber. A shock absorber valve seat body is of a hollow cylindrical structure with the upper end closed, a piston rod penetrating hole is formed in the center of the upper end face of the shock absorber valve seat body, three concentric circular-ring-shaped protruding structures are arranged on the outer side of the piston rod penetrating hole, and are respectively a first circular ring protrusion, a second circular ring protrusion and a third circular ring protrusion, through holes penetrating through the upper end face are evenly distributed between the first circular ring protrusion and the second circular ring protrusion, throttling holes are formed in the positions, outside the first circular ring protrusion and the second circular ring protrusion, of the through holes, and the height of the first circular ring protrusion and the height of the third circular ring protrusion are the same and are both larger than the height of the second circular ring protrusion. According to the shock absorber valve seat technology of the technical scheme, generalization is achieved, the damping adjusting range is enlarged, shock absorber valve seats can be completely the same even if damping forces of different vehicle types or vehicle types with different configurations are different, and the cost of production management and the like is reduced.
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Description

technical field

[0001] The invention belongs to the technical field of shock absorbers, and in particular relates to a generalized shock absorber valve seat and a shock absorber. Background technique

[0002] The damping characteristic of the shock absorber is one of the important characteristics of the shock absorber, which directly affects the handling, comfort, NVH and safety of the car. Different cars require different damping characteristics, and even different configurations such as the powertrain of the same car have different damping characteristics. Therefore, the adjustability and differentiated damping characteristics of the shock absorber are highly required. There are not many types of damping adjustment structures used for shock absorber valve systems, but the differences are quite large. In terms of damping adjustment methods, there are mainly: one is to rely on the variable stiffness limit spring to change the hydraulic flow and flow speed to realize hydrau...

Examples

Embodiment Construction

[0026] The technical solution of the present invention is described in detail below through the examples, and the following examples are only exemplary and can only be used to explain and illustrate the technical solution of the present invention, rather than being interpreted as a limitation to the technical solution of the present invention.

[0027] The damping characteristics of the shock absorber are as figure 1 As shown, where a is the first inflection point, b is the second inflection point, c is the damping characteristic of the low-speed section, d is the damping characteristic of the medium-speed section, and e is the damping characteristic of the high-speed section.

[0028] The damping adjustment structure of the hydraulic shock absorber in the prior art is as follows: figure 2 As shown, the valve seat structure is as image 3 As shown, it includes the piston rod 1, the working cylinder 2, the valve seat 3 and the bushing 31 on the valve seat, the upper limit blo...