A method of manufacturing an air spring for a rail transit passenger car

Abstract

The invention discloses an air spring for rail transit passenger cars and a manufacturing method thereof. It consists of upper cover plate, air bag, rubber seat, auxiliary spring, throttle flange located in the middle of the rubber seat and connected with the rubber seat; the rubber seat is installed on the auxiliary spring composition, the air bag is located on the rubber seat, and the upper cover The composition is located above the airbag; the composition of the upper cover includes a flat plate of the upper cover, positioning pins of the upper cover, vulcanized rubber of the upper cover, sealing rubber of the upper cover, and a supporting plate of the upper cover connected under the flat plate of the upper cover. The manufacturing method of an air spring for a rail transit passenger car comprises: making an upper cover plate composition; making an air bag; making a rubber seat; making an auxiliary spring composition; and assembling the air spring for a rail transit passenger car. The invention can provide high bearing capacity under the condition of relatively low installation height, and simultaneously provide suitable vertical and lateral rigidity values. The manufacturing process control ability of the air spring 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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