Troubleshooting and energy absorbing device and leading car of motor train unit

Abstract

The invention provides a troubleshooting and energy absorbing device and a leading car of a motor train unit. The troubleshooting and energy absorbing device is provided with a troubleshooting beam and a buffering crossbeam which are arranged oppositely, an energy absorbing tube component is fixedly connected between the troubleshooting beam and the buffering crossbeam and is provided with energy absorbing tubes, one ends of the energy absorbing tubes are fixedly connected with a mounting seat, crushing supports are penetratingly mounted at the other ends of the energy absorbing tubes, each crushing support is provided with an reducer through hole, the inside of each reducer through hole is provided with a crushing protruded portion, a recess portion matched with the crushing protruded portion is arranged at one end of each energy absorbing tube penetrating into the crushing support, the mounting seat is connected with the troubleshooting beam fixedly, and the crushing supports are connected with the buffering crossbeam fixedly. By the above technical scheme, due to the energy absorbing tube component, the energy absorbing tubes of the energy absorbing tube component can absorb a great deal of impact energy by generating crushing deformation when the troubleshooting and energy absorbing device collides with an obstacle and produces high impact, so that a car body is stressed by low impact, and stability and safety of the car in running is guaranteed.

Description

technical field [0001] The invention relates to rail vehicle technology, in particular to an obstacle-removing energy-absorbing device and a head car of an EMU. Background technique [0002] The obstacle removal device is a safety protection device for rail trains to remove possible obstacles on the line to avoid derailment and other operating accidents. [0003] Such as figure 1 As shown, the obstacle removal device used on locomotives in the early stage was welded by a profiled bent plate 1 and a rib plate, and a support beam 2 for the obstacle removal device was welded at both ends of the profiled bent plate 1, and the support beam 2 for the obstacle removal device There is a mounting plate 3 at the end far away from the profiled bending plate, and the obstacle removal device is installed on the lower part of the locomotive traction beam with bolts passing through the installation plate. The obstacle removal device with this structure does not have the functions of buffe...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an obstacle-removing energy-absorbing device and a head car of an EMU, which are used to solve the problem that the obstacle-removing device in the prior art has limited cushioning characteristics and cannot guarantee driving stability and safety.

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