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Multiple rigidity-variable automotive suspension spring

A technology of automobile suspension and variable stiffness, which is applied in the direction of springs/shock absorbers, coil springs, mechanical equipment, etc., can solve the problems of spring coil collision, noise, ride comfort, poor comfort, etc., to reduce inclination, reduce Noise, the effect of lowering the center of gravity

Inactive Publication Date: 2008-11-19
ZHEJIANG MEILI HIGH TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects of poor ride comfort and comfort in the prior art, to provide a multiple variable stiffness automobile suspension spring, and to overcome its impact when it bears a large impact on this basis. , the defect that the spring coils are prone to collision and make noise

Method used

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  • Multiple rigidity-variable automotive suspension spring

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Embodiment Construction

[0021] As shown in Figures 1, 2, and 3, multiple variable stiffness automobile suspension springs are wound into a spiral shape by a spring wire whose diameter gradually becomes thinner from the middle to both ends, and the pitch of the helical spring is from the middle to both ends. From large to small, the outer diameter of the spring ring and the inner diameter of the spring ring change from large to small from the middle part to the two ends.

[0022] The following is a set of specific technical parameters:

[0023] Design stress: 1100-1200MPa.

[0024] Dimensional parameters (mm): the diameter of the spring wire d is 8-20; the inner diameter of the spring coil at both ends is D2≥30; the outer diameter of the spring coil at the middle part is D1≤200; the expansion length of the material diameter change at both ends can reach 1200; Pressure and limit height ≤ 45.

[0025] Load characteristics: 1. Stiffness changes with load; 2. Stiffness deviation ≤ ± 4%.

[0026] Fatigu...

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Abstract

The invention relates to a multi-rigidity automotive suspension spring, belonging to an elastic element. The prior art has the drawbacks in ride and comfort. The spring is formed by spiraling a spring wire, and is characterized in that the spring wire has a diameter reducing form middle to the two ends. The spring has comfort, steadiness, superstrength, small volume, light weigh, no noise and high fatigue resistance.

Description

technical field [0001] The invention belongs to elastic elements, in particular to a multiple variable stiffness automobile suspension spring. Background technique [0002] The automobile suspension spring is an elastic coupling element between the frame (or body) and the axle (or wheel). Stable posture for improved handling stability. Therefore, the form and performance of the suspension structure determine the ride comfort, handling stability and comfort of the car. [0003] The spring is the key part of the suspension structure, and the suspension spring is widely used in cars and small passenger cars. There are 4 suspension springs in each car. During the driving process of the car, it withstands high-frequency reciprocating compression movement and acts as a buffer. And the function of shock absorption, its quality is good or bad, plays a vital role to the stability and safety of the vehicle. Suspension springs widely used at present are cylindrical suspension spring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/04
Inventor 赵春萍鲁世民陈瑞枫梁月芳竺大年
Owner ZHEJIANG MEILI HIGH TECH
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