A composite elastic element with multiple free surfaces

Abstract

A multi-free surface composite elastic element, including metal parts and elastic parts, the metal parts and elastic parts are combined to form a composite elastic element; the metal parts of the composite elastic element include metal outer rings, metal inner rings and metal side rings, metal The outer ring and the metal side ring are arranged in parallel to the axial direction, there is a gap in the axial direction between the metal outer ring and the metal side ring, the metal inner ring is located on the inner surface of the inner diameter of the metal outer ring, and the metal inner ring is also in the metal outer ring. Arranged in parallel, there is also a gap between the metal inner ring, the metal outer ring and the metal side ring; in the gap formed by the metal outer ring, the metal inner ring and the metal side ring, there is an elastic body, and the elastic body and the metal outer ring, metal The inner ring and the metal side ring are compounded together and form a composite elastic element with a multi-elastomer free surface. The composite elastic element of the present invention can realize the matching of stiffness characteristics in a special ratio, meet the requirements of large axial stiffness and reduce radial stiffness, and maintain the characteristics of low deflection and low torsional stiffness.

Description

technical field [0001] The invention relates to a vehicle component, especially an elastic damping element for a vehicle, which can effectively improve the comprehensive performance of the elastic damping element in all directions, so as to meet the needs of various complex working conditions. The invention relates to demand for elastic damping components; it belongs to the technical field of rail transit manufacturing. Background technique: [0002] With the continuous development of modern rail transit technology, the running speed of the vehicle is getting higher and higher, which makes the requirements for the operation of the whole vehicle higher and higher, such as the requirements for the elastic damping components used in the vehicle are also higher and higher. At present, as the speed of the vehicle is getting higher and higher, the vibration and impact of the high-speed motor vehicle under high-speed operating conditions are very large, so the requirements for the ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the existing motor suspension method is difficult to apply to various load conditions, especially the existing elastic damping elements cannot meet the requirements of large axial stiffness and low radial stiffness. A new type of composite elastic element, which can greatly improve the comprehensive vibration reduction performance of the motor suspension, has a large axial stiffness and low radial stiffness, and effectively meets the elastic vibration reduction requirements of the motor suspension of the high-speed train system

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