Air spring for railway passenger vehicle and production method of air spring

Abstract

The invention discloses an air spring for a railway passenger vehicle and a production method of the air spring. The air spring comprises an upper cover plate assembly, an air bag, a rubber seat, an auxiliary spring assembly and a throttling flange which is located in the middle of the rubber seat and connected with the rubber seat, wherein the rubber seat is mounted above the auxiliary spring assembly; the air bag is located above the rubber seat, and the upper cover plate assembly is located above the air bag; the upper cover plate assembly comprises an upper cover plate flat plate, an upper cover plate locating pin, upper cover plate vulcanized rubber, upper cover plate sealing rubber and an upper cover plate support plate connected to the lower side of the upper cover plate flat plate. The production method of the air spring for the railway passenger vehicle comprises the following steps: producing the upper cover plate assembly; producing the air bag; producing the rubber seat; producing the auxiliary spring assembly; assembling the components to form the air spring for the railway passenger vehicle. The air spring can provide high bearing capacity under the condition of smaller mounting height and provide proper vertical and horizontal stiffness values. The air spring manufacturing process control capacity is improved, and the manufacturing cost of the air spring is reduced.

Description

technical field [0001] The invention relates to the technical field of rail transit passenger cars. Background technique [0002] The air spring is a system component used on the bogie of rail transit vehicles to support the load and realize the deformation of the bogie in the vertical direction and in the horizontal plane. Railway passenger cars are different from subways and high-speed trains. With the rapid development of rail transportation, the application environment of rail lines has become more and more diversified. Air springs used in some lines and bogies are required to be able to It provides high bearing capacity at a low installation height, while providing suitable vertical and lateral stiffness values. [0003] In the prior art, the Chinese invention patent application with application number 200820199063.4 discloses an air spring for railway passenger cars with high bearing capacity, which includes an upper cover, a rubber stack and a capsule. The bottom of ...

AI Technical Summary

Problems solved by technology

In the prior art, the manufacturing cost of the throttle valve is relatively high, and at the same time, the protruding air intake interface and the cover plate are actually welded, which has a high risk of air tightness. At the same time, the connection between the air spring system and the car body frame has Risk of frictional damage

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