Railway vehicle and hook buffer device thereof

Abstract

The invention provides a railway vehicle and a hook buffer device thereof. While curve pass is realized, a connecting structure is simplified, a fit clearance is reduced, and the fitting tightness between a tail hook pin and a pin hole is improved. The hook buffer device comprises a front slave plate base, a rear slave plate base and a bidirectional buffer, wherein the front slave plate base and the rear slave plate base are connected with a vehicle body; the bidirectional buffer is fixedly connected between the front slave plate base and the rear slave plate base and is provided with a carrying body with a buffering function and a connecting component acting on the carrying body; the connecting component is hinged to a vehicle hook through the tail hook pin; the tail hook pin extends up and down; a rotating component is assembled between at least one of the connecting component and the vehicle hook, and the tail hook pin, so that the connecting component and the vehicle hook relatively rotate in a vertical plane; the rotating component is matched with the connecting component and the vehicle hook, so that relative displacement between the connecting component and the vehicle hook in the front-back direction is limited. Due to the fact that the vehicle hook and the connecting component can be relatively fixed in the front-back direction, no matter in an assembling state or various working states, the longitudinal impact caused in a vehicle driving process can be obviously reduced, the usability of the vehicle is improved, and the abrasion is reduced.

Description

technical field [0001] The invention relates to the technical field of railway transportation, in particular to a railway vehicle and a hook and buffer device thereof. Background technique [0002] The coupler 4 is one of the most basic and important parts of a railway vehicle. It is installed at both ends of the vehicle. The coupler 4 generally needs to form a coupler buffer device through coupler pin 5, coupler frame, buffer and other parts. Its function is to connect Locomotive carriages, transmission of train longitudinal forces (traction and compression) and mitigation of longitudinal impact between carriages. In addition, the coupler 4 also needs to be able to rotate horizontally and vertically to ensure that the vehicle passes through the horizontal curve and the vertical curve smoothly. [0003] Please refer to figure 1 with figure 2 , figure 1 It is a schematic diagram of a state of a hook buffer device in the traction working condition in the prior art; figu...

AI Technical Summary

Problems solved by technology

[0022] The purpose of the present invention is to provide a coupler buffer device for railway vehicles, which not only solves the problem of too large longitudinal fit gap of existing coupler devices, but also simplifies the connection structure while realizing the curve passing, thereby reducing the number of coupler and coupler frames. Connect the required parts, reduce the fit clearance, and improve the fit tightness between the coupler pin and the pin hole

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