Front-end energy-absorption device of subway vehicle

Abstract

The invention discloses a front-end energy-absorption device of a subway vehicle, and belongs to the field of a hitting-prevention energy-absorption device at the front end of a railway vehicle head.The front-end energy-absorption device comprises a movable anti-crawling device, a fixed anti-crawling device, an energy-absorption aluminum honeycomb, two crushing pipes, two split-type slide grooves, two regression guiding slide rails and two movable anti-crawling device long bolts. The energy-absorption aluminum honeycomb serves as a first-level energy-absorption element in an overall structure, and directly bears collision impact force transmitted from the movable anti-crawling device, through compressive deformation of the energy-absorption aluminum honeycomb itself, collision kinetic energy is converted into deformation internal energy and heat, and thus energy-absorption buffering is achieved; the two crushing pipes serve as a second-level energy-absorption buffering device, the collision energy is further absorbed, thus buffering protection of a vehicle chassis is further achieved, it is ensured that when collision occurs, the impact energy can be sequentially moved in the predetermined direction and sequence according to multiple levels and sequences, and the reliability of the motion of the energy-absorption device is guaranteed.

Description

technical field [0001] The invention belongs to the field of an anti-collision energy-absorbing device for a front end of a rail vehicle, and in particular relates to a front-end energy-absorbing device for a subway vehicle. Background technique [0002] The front end of the lead car of a rail vehicle is usually equipped with an anti-collision energy-absorbing device. For existing subway vehicles with an energy-absorbing device, the energy-absorbing device usually adopts the structural form of an integrated design of the car body chassis structure and the energy-absorbing device. , this structural form uses the energy-absorbing device as an inherent part of the underframe of the car body. When the front end of the train collides, the energy-absorbing device of the car body is connected to the underframe of the car body to bear the impact charge and absorb it as deformation internal energy. But at the same time, it also means that the structure of the car body chassis and ene...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the front-end energy-absorbing devices of existing subway vehicles usually adopt the integrated design of the car body chassis structure and the energy-absorbing device, the energy-absorbing device is not divided into multiple levels, and the integrated structure of the chassis and the energy-absorbing device cannot For the technical problem of separate replacement of the front end energy absorbing device, the present invention provides a front end energy absorbing device for subway vehicles

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