Railway vehicle test stand

Abstract

The invention relates to the technical field of railway vehicle crash test, and specifically relates to a railway vehicle test stand. Automatic speed monitor and acceleration stop of the railway vehicle crash test are achieved by the application of a drive trolley, an air cylinder, a speed monitor, a controller and an unlocking mechanism. In the prior art, testers operate an actual haulage motor to accelerate the tested vehicle in the railway vehicle crash test; the manual operation causes delays to speed data receiving response and haulage motor operation, meanwhile, the actual haulage motor does not meet the test precision requirements of the system reaction sensitivity to acceleration and stop. Comparing to the prior art, the railway vehicle test stand greatly increases the precision of tested vehicle speed control in the railway vehicle crash test. Additionally, the compressed driving measure in the railway vehicle test stand is able to meet the crash test requirements of short distance acceleration, large mass and high speed railway vehicle.

Description

technical field [0001] The invention relates to the technical field of rail vehicle crash tests, in particular to a rail vehicle test bench. Background technique [0002] With the rapid development of the rail transit industry since my country entered the 21st century, the manufacturing technology of rail vehicles including trains and subways has been continuously improved. Among them, among the test methods based on safety and other performance requirements, the most effective and realistic test method is to conduct crash tests on real rail vehicles. [0003] In recent years, for the purpose of obtaining various real data, in the actual vehicle crash test of rail vehicles, the speed accuracy of the control test vehicle is required to be higher and higher. Therefore, the improvement of velocity accuracy during rail vehicle crash tests becomes a design goal. [0004] In the existing rail vehicle crash test, the test vehicle is driven and accelerated by the real automatic po...

AI Technical Summary

Problems solved by technology

In this detection process, the real locomotive is used as the power source to drive. Since the locomotive needs manual operation, the operator has a lag in the operation of the train after receiving information such as speed. At the same time, the design function of the locomotive itself is to drag Passenger cars or freight cars are running normally, so the response sensitivity of the locomotive to the acceleration, deceleration or braking system of the operation is low, and its acceleration and braking processes cannot respond sensitively at important time and speed nodes, and it is difficult to achieve in a short control window period Precise Conversion Control

Therefore, in the prior art, the speed accuracy of the rail vehicle crash test completed by using the real rail vehicle including the locomotive as the power source is low, and the detection data cannot be obtained accurately

[0005] In the above-mentioned prior art, the low accuracy of speed control of the test vehicle during the rail vehicle crash test is a technical problem currently to be solved by those skilled in the art

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