Combined type railway vehicle energy absorption anticreeper

Abstract

The invention discloses a combined type railway vehicle energy absorption anticreeper. The combined type railway vehicle energy absorption anticreeper comprises a piston rod, a cylinder body, a flangeand a cooling pipe. The cylinder body is internally provided with cooling liquid. One end of the cylinder body is connected with one side of the flange. The flange is provided with a guiding hole, wherein the piston rod is connected with the guiding hole in a sliding manner. A piston is arranged at the tail end of the piston rod, wherein the piston is connected with the inner wall of the cylinderbody in a sliding manner. A cutting tool is mounted at the other side of the flange and extends into a guiding groove in the piston rod. The cooling pipe unidirectionally extends to the mounting position of the cutting tool in a communicating manner from the interior of the cylinder body. According to the combined type railway vehicle energy absorption anticreeper, the mode that the tool is cooled through the cooling liquid is adopted; the probability that the tool is molten in the cutting process is lowered; reliability of the cutting tool is improved; meanwhile, after cutting, a cutting portion pushes the piston to extrude the cooling liquid in the cylinder body, and when vehicle collision occurs, part of kinetic energy can be converted into kinetic energy and pressure energy of the cooling liquid; and the breakage probability of the tool is lowered.

Description

technical field [0001] The invention relates to the field of rail traffic buffering and energy absorption, in particular to a combined energy-absorbing anti-climbing device for rail vehicles. Background technique [0002] With the rapid development of the rail transit industry, while improving the active safety of trains, more and more attention has been paid to the passive safety performance of rail vehicles. When the train collides at a high speed, a huge acceleration pulse will be generated, which will lead to serious damage phenomena such as arching, climbing, and overturning of the train, causing large deformation of the colliding vehicle and greatly reducing the living space of passengers. In order to reduce the damage to the car body and the injury of the occupant in the train collision accident, a large energy-absorbing and high-efficiency anti-climbing device is usually installed in the limited space at both ends of the train. [0003] At present, the commonly used...

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Problems solved by technology

[0003] At present, the commonly used cutting, planing and broaching energy-absorbing anti-climbing devices have the following deficiencies: (1) the processing technology is strict, and the cutting parts have higher requirements on the cutting tools; (2) the temperature is relatively high when the cutting parts are cut. High, resulting in severe tool melting and poor tool reliability; (3) The initial cutting process has a large impact force, and the tool is easy to break; (4) There are certain fluctuations in the smooth cutting process, and the anti-climbing device has poor anti-eccentric load performance

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