Buffer with dismantling device for railway vehicle

Abstract

The invention discloses a buffer with a dismantling device for a railway vehicle. The buffer comprises a mounting base, two or more elastic bodies, a draw bar and a locking piece. The elastic bodies are mounted on the draw bar in a sleeved mode and are locked through the locking piece. The buffer further comprises a rotary shaft drum, a snap bolt and a guide block. The mounting base is provided with a first mounting hole. The rotary shaft drum is located in the first mounting hole. The inner wall of the first mounting hole of the mounting base is provided with a guide groove. The guide block is provided with a rotary shaft hole. The guide block is connected with the guide groove in a sliding mode and is fixedly connected with the end face of the mounting base through the snap bolt. A rotary shaft is arranged on the periphery of the rotary shaft drum. The rotary shaft extends into the rotary shaft hole of the guide block. The rotary shaft drum is provided with a second mounting hole. A partition board is arranged in the second mounting hole. The partition board is provided with a partition board hole. The draw bar penetrates through the partition board hole, and the two sides of the partition board are respectively provided with at least one elastic body. The buffer is provided with a guide structure, so that the buffer is prevented from skewing and getting stuck in the dismantling process.

Description

Technical field [0001] The invention relates to a buffer with a release device for rail vehicles, in particular to an overload release device for a coupler buffer for rail vehicles. Background technique [0002] At present, the passive protection performance of urban rail vehicles has attracted more and more attention, and the coupler buffer, as a key component for transmitting and buffering the self-checking traction and impact of the vehicle, is directly related to the safety and comfort of train operation. In the event of a vehicle collision, the coupler buffer will absorb energy. When the load is too large, the coupler buffer installed at the front end of the cab will be detached and returned to the interior of the car body to make room for the head of the car. [0003] At present, due to the different buffering media, the types of buffers used by rail vehicles are various, so the design of the overload release structure is also different. Most of the release structures mainly ...

AI Technical Summary

Problems solved by technology

[0003] At present, due to the different buffer media, there are various types of buffers used in rail vehicles, so the design of the overload detachment structure is also different. Most detachment structures mainly use the bolts connecting the rotating shaft and the buffer mounting seat to break when overloaded. According to the principle of structural design, the bolts bear both tensile force and shear force, and lack of good guidance during detachment, which may cause deviation during detachment

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