Indicating piece and crushing energy absorbing device

Abstract

The invention provides an indicating piece and a crushing indicating device. The indicating piece is used in cooperation with a first base body and a second base body which can move relatively, and comprises an indicating piece mounting part and an indicating part which are arranged by an angle, the mounting part is mounted on the first base body, and the indicating part can be in contact with thesecond base body in the movement process of the first base body and the second base body to generate deformation relative to the mounting part. The crushing energy absorbing device comprises a forcetransmitting part and a crushing pipe, and the force transmitting part is inserted in a pipe port of the crushing pipe; the crushing indicating device further comprises the crushing deformation indicating piece, the crushing deformation indicating piece comprises the indicating piece mounting part and the indicating part, the indicating piece mounting part is mounted on the force transmitting part, the indicating part and the indicating piece mounting part are arranged by an angle, and can be in contact with the caliber of the crushing pipe in the process that the force transmitting part movestowards the crushing pipe, and then deformation occurs. By means of the indicating piece and the crushing indicating device, a simple structure is adopted for detecting and indicating the tiny strokeand precise deformation of the crushing pipe, the principle is simple, and the use is convenient.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to an indicator and a crushing energy-absorbing device. Background technique [0002] Rail vehicles have certain safety problems during operation, among which the collision problem is particularly important, so the research on passive protection measures for vehicles is very important. Rail vehicle buffer energy-absorbing devices can buffer and absorb train collision energy. There are many forms of buffer energy-absorbing devices, and crush energy-absorbing devices are one of the important forms of products. [0003] In order to meet the energy absorption requirements of rail vehicles, couplers with crushing devices are generally used in the car end connection. The crushing device mainly has various forms such as planing type and expansion type. Energy is absorbed through non-recoverable deformation forms such as planing energy absorption or expansion of the crushing tube. Th...

AI Technical Summary

Problems solved by technology

The elastic pin is installed on the force transmission part. At present, after the assembly of the crushing tube is completed, the distance between the edge of the expansion tube and the elastic pin cannot be adjusted, and there is a certain elastic deformation at the initial stage of deformation. If the crushing tube is slightly triggered (when the stroke is less than 5mm ), the spring pin cannot accurately detect the

[0005] In the prior art, there is no crush deformation indicating structure that can effectively check the micro deformation of the crush tube

However, once the crush tube is deformed, no matter how small the deformation is, the crush tube should be replaced, otherwise it will affect the safety performance of the train operation

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