Rail transportation second-system damping method and rubber hourglass overlapping spring

Abstract

The invention discloses a rail transportation second-system damping method and a rubber hourglass overlapping spring. A composite rubber metal spring combined by a rubber hourglass and overlapping spring rubber serves as a rail transportation second-system auxiliary damping spring to perform auxiliary damping on a rail transportation second-system; and the rubber hourglass and overlapping spring rubber are integrally vulcanized on two sides of an overlapping spring metal clapboard and are combined and connected into an elastic body through a connecting strip, wherein the rubber hourglass is positioned on the overlapping spring rubber; and a smaller end of the hourglass rubber is vulcanized with an upper metal plate, and a larger end of the hourglass rubber is vulcanized with the overlapping spring rubber through the overlapping spring metal clapboard. An hourglass spring is vulcanized with a flat spring, and the hourglass spring has the characteristic of low vertical rigidity and alsohas high horizontal displacement capacity with the overlapping spring; therefore, a mounting space can be made into the size the same as that of the overlapping spring. Therefore, the requirements onsmall space, high horizontal displacement capacity and low vertical rigidity of an air spring are met.

Description

technical field [0001] The invention relates to a rail transit vibration reduction method and an elastic vibration reduction element, in particular to a rail transit secondary vibration reduction method and a rubber-metal laminated spring, which is mainly used in rail traffic secondary air springs and plays the role of an auxiliary spring . technical background [0002] The development trend of rail transit today is high speed, comfort and safety. It is mainly the air spring system for rail transit that provides these functions for the train. The air is mainly composed of an air bag and an auxiliary spring. Generally, there are four types of auxiliary springs: rubber laminated springs, conical springs, hourglass springs, and laminated cone composite springs, all of which are used individually. The rubber laminated spring has large lateral displacement capacity and small installation space, but the vertical stiffness is too high, and there is a risk of derailment; the vert...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a kind of air spring that can realize large spring in a small space in order to solve the problem that the existing rail transit secondary air spring cannot meet the requirements of having low vertical stiffness and large lateral displacement capacity in a small installation space. Rail Transit Secondary Auxiliary Damping Method with Horizontal Displacement and Low Vertical Stiffness and Rubber-Metal Laminated Spring

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