Rubber spring and its design method

Abstract

Rubber spring and design method thereof, comprising an upper metal plate, a lower metal plate and a rubber layer vulcanized between the upper metal plate and the lower metal plate, the circumferential outer profile of the rubber layer including radial bulges for constraining the rubber layer In the normal load range, the radial bulge of the rubber layer does not exceed the constraining ring surface of the edge of the upper metal plate and the lower metal plate and the axial stiffness limiting ring surface used to limit the axial stiffness of the rubber layer, the axial stiffness limit The annular surface is arranged at both ends of the restraining annular surface. The invention solves the technical problem that the hourglass spring bulges radially and easily interferes with surrounding equipment after vertical deformation or horizontal deformation, and has lower requirements for installation space, and replaces the hourglass spring as an auxiliary spring of the air spring system and will not be under load. Interference with the large curved bag during the process can improve the reliability of the air spring system, and the rubber spring has higher practicability. The adjustment of the stiffness characteristics of the rubber spring is simple and easy, and it is easy to adjust the adaptability and simple adjustment during the production process according to the requirements of the operating conditions. .

Description

technical field [0001] The invention relates to a rubber spring and a design method thereof, and belongs to the technical field of metal rubber elastic damping elements. Background technique [0002] The air spring system for rail transit is an important part of the train, which supports the car body, reduces vibration and provides lateral and torsional deformation to ensure the safe operation of the vehicle. The air spring is composed of an air bag and an auxiliary spring. As one of the types of auxiliary springs, the hourglass spring has the characteristics of small vertical stiffness, large lateral displacement, adjustable height and simple structure. It is often used in track routes that require air springs to be light in weight, good in stability and adjustable in height. The function of the hourglass spring is to transmit the vertical load, bear the vertical and horizontal deformation, and provide the air spring with operating dynamics through its stiffness characteri...

AI Technical Summary

Problems solved by technology

[0016] The rubber spring and its design method provided by the present invention solve the technical problem that the hourglass spring bulges radially and easily interferes with surrounding equipment after vertical deformation or horizontal deformation, has lower requirements for installation space, and replaces the hourglass spring as an air spring. The auxiliary spring of the spring system will not interfere with the large curved bag during the loading process, which can improve the reliability of the air spring system. The practicability of the rubber spring is higher. Adaptive and easy adjustments during production

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