Emergency air spring assembly

Abstract

The invention discloses an emergency air spring assembly. The emergency air spring assembly comprises an upper cover plate, air bags, an upper end plate and a lower end plate; the periphery of the upper end plate is connected with the periphery of the lower end plate through the air bags; a plurality of steel springs are arranged between the upper cover plate and the lower end plate in the peripheral direction; and a damper is also mounted between the upper cover plate and the upper end plate. The emergency air spring assembly has the advantages of simple structure, convenience in mounting, low overload vertical stiffness, large vertical deformation, high comfortableness and stability, and capacity of preventing creepage and realizing soft stop.

Description

technical field

[0001] The invention mainly relates to shock absorbing technology, in particular to an emergency air spring assembly. Background technique

[0002] Air spring components are used in a wide range of applications, such as railway carriages, heavy-duty vehicles, and other applications where cushioning or shock absorption is important. Typically, such spring assemblies include an elastomeric body positioned between a pair of rigid end plates. The elastomer is made of rubber and is compressed by the load applied to the spring assembly. In the prior art, the rubber emergency spring will creep during the service life due to the characteristics of the rubber, and at the same time, due to the nonlinearity of the rubber, the vertical stiffness will increase when the load increases. In some high-speed train projects, the emergency spring is required to have a small change in vertical stiffness, a large dynamic displacement, and no padding is allowed during the service...

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