Variable stiffness spring for realizing conversion of work rings and support rings

Abstract

The invention discloses a variable stiffness spring for realizing conversion of work rings and support rings. The conventional spring has the disadvantages of small stiffness change, poor compactness of installation and work and small stroke. The variable stiffness spring is in a spiral shape, and is characterized in that the stiffness of work rings positioned at the middle position is less than that of work rings positioned at other positions in the axial direction of the spring, so that when both ends of the spring are subjected to a certain pressure, the work rings at the middle position contact axially to form the support rings and divide the spring into two sections; the diameters of the spring work rings are reduced gradually from the middle position to both ends; and the diameters of the two adjacent work rings positioned at both ends at least differs by two times from the diameter of a spring steel wire, so that the work rings do not contact axially and encircle together during pressurizing. Therefore, the aims of variable stiffness, space minimization and stroke maximization are achieved.

Description

technical field [0001] The invention relates to a spring, in particular to a spring with a variable stiffness that realizes the conversion between a working ring and a supporting ring, and is used to change the stiffness when the load changes to adapt to the change of the load to achieve reasonable support and buffering effects. Background technique [0002] Suspension spring is one of the important parts and safety parts in the automobile suspension system, and its main function is to support the weight of the vehicle body and dampen the vibration. [0003] In the increasingly fierce competition in the automobile industry, various automobile OEMs continue to improve the ride comfort and handling performance of vehicles to occupy the automobile sales market. While pursuing superior performance, automobiles undoubtedly put forward higher requirements for suspension springs, which are one of the important components. The traditional spring design has been unable to meet the ne...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved and the technical task proposed by the present invention are to overcome the shortcomings of existing springs such as small change in stiffness, poor installation and working compactness, and small stroke, and provide a variable stiffness spring that realizes the conversion between the working ring and the supporting ring

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