Three-shaft multifunctional crash trolley of railway vehicle

Abstract

Disclosed in the invention is a three-shaft multifunctional crash trolley of a railway vehicle. The three-shaft multifunctional crash trolley comprises an underframe unit and a running gear. The running gear mainly includes a single-shaft wheel and a two-shaft bogie. One end, far away from the single-shaft wheel, of the underframe unit is connected with a test piece mounting rack by a rotating shaft; and an overturning device is installed between the test piece mounting rack and the underframe unit. With the overturning device, the test piece mounting rack can be in a vertical standing or horizontal folding mode. The test piece mounting rack has a frame type transparent structure. The overturning device consists of a sliding block guide rail, a sliding block locking device, a sliding block, a sliding block fixed backstop, and an inclined strut; one end of the inclined strut is connected with the test piece mounting rack by a pin shaft and the other end is hinged with the sliding block; the sliding block is in a guide slot on an underframe side beam of the underframe unit and the sliding block fixed backstop is arranged at the other end of the guide slot; and the sliding block locking device is arranged on the underframe side beam. According to the invention, the structure is simple and reasonable; and the provided crash trolley not only can be used for parts crash testing but also can be used for the crash test of the overall railway vehicle.

Description

technical field [0001] The invention relates to a three-axis multifunctional collision trolley for rail vehicles. Background technique [0002] With the development of rail transit, rail vehicle crash test is an indispensable link. Accurate test results can be obtained by using real vehicles for crash tests, but the test costs are quite expensive and have certain risks. The commonly used method is to use a crash test bench, install and fix the energy-absorbing components of the test specimens such as the main energy-absorbing structure, anti-climbing device, and coupler on the test bench, and use the test bench and the test specimen as a whole to replace the actual Cars are subjected to crash tests to obtain test images and test data related to the test specimens, and evaluate the impact resistance of the test specimens. A currently known test bench is a crash test bench designed by the Japan Railway Comprehensive Technology Research Institute, with a self-weight of 120 kg...

AI Technical Summary

Problems solved by technology

Inadequacies of the prior art: the quality of the test piece, the running system, the height of the center of gravity from the rail surface are completely inconsistent with the real rail vehicle, and only small parts or scaled models of the rail vehicle can be used for impact tests. The collision test of large components such as the driver's cab, the end wall of the car body, and the underframe cannot be completed, and the test data is still far from the actual situation.

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