Elastic Clay Buffer for Metro Vehicles

A technology of elastic clay and buffer, which is applied in the direction of buffer, railway car body parts, solid shock absorber, etc., can solve the problems of steep characteristic curve, high static impedance, high initial resistance, etc., to meet performance requirements, The effect of high sealing reliability and low initial resistance
CN110901681BActive Publication Date: 2021-01-05BEIJING INST OF STRUCTURE & ENVIRONMENT ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF STRUCTURE & ENVIRONMENT ENG
Publication Date
2021-01-05

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Abstract

The invention discloses an elastic daub buffer of a subway vehicle. The damper comprises an outer piston rod assembly, an inner piston rod assembly, a cylinder cover assembly, a cylinder body and elastic cement gum, the outer piston rod assembly comprises an outer piston rod, an outer guide belt, a one-way valve steel ball, a positioning flat plug in threaded connection, an inner guide belt, a sealing piece, a positioning ring and an elastic check ring, the inner piston rod assembly comprises an inner piston rod, a guide belt, a one-way valve steel ball and a positioning flat plug in threadedconnection. The cylinder cover assembly comprises a cylinder cover, a static sealing piece, a dustproof ring, a sealing piece, a guide belt, a guide ring, an elastic check ring, a one-way valve steelball, a positioning flat plug in threaded connection, a reverse one-way valve steel ball and a set screw. By adopting an inner and outer double-piston-rod structure, a two-stage damping system, a double-sealing structure, a built-in sealing structure and the like which are alternately used under different impact speed working conditions, the shock absorber has the advantages of being stable in performance, good in sealing performance, low in initial impedance, good in restorability, long in service life and the like.
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Description

technical field

[0001] The invention relates to a buffer for rail transit equipment couplers, in particular to an elastic cement buffer for subway vehicles, and belongs to the technical field of rail transit equipment. Background technique

[0002] The buffer is one of the important parts of the rail vehicle. It mainly plays the role of transmitting the longitudinal traction force when the train is pulling, and mainly plays the role of easing the longitudinal impulse of the train when braking. The comprehensive performance of the buffer directly affects the running quality of the train and the reliability of the car body structure. A good buffer can effectively reduce the coupler force, reduce knuckle wear, reduce longitudinal impulse, and improve the service life of the coupler and the vehicle.

[0003] In recent years, with the acceleration of China's urbanization process, the urban population density has gradually increased. In order to alleviate urban traffic pressure a...

Claims

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