Wheel wear resistance combined test stand of rail vehicle

Abstract

The invention provides a wheel wear resistance combined test stand of a rail vehicle. The test stand comprises mechanical components and a data collecting and processing system, wherein the mechanical components are mainly composed of a basic foundation, and a speed-regulating motor, an inertia wheel set, a universal coupling and a wheel test device which are installed on the basic foundation; the wheel test device mainly comprises a frame body, a test wheel, and an electric vertical loading lead screw, transverse loading lead screw, brake shoe braker and rail wheel of the test wheel; and allthe pressure load sensors of the test wheel are connected with the data collecting and processing system. The invention completely and truly simulates the wheel of the rail vehicle and performs the test and detection under the working conditions of real brake shoe braking and wheel over loading so as to realize multiple and continuous wearing resistance tests of the wheel tread and the wheel flange and shorten the research period of the wheel wear resistance test; and the invention provides a reliable basis for the various influencing factors of wheel wear such as the wheel brake shoe braking, operational load and speed of the rail vehicle, and the load of the wheel flange in curvilinear motion.

Description

technical field [0001] The invention relates to detection equipment for rail vehicle components, in particular to a comprehensive test bench for the wear resistance of rail vehicle wheels. Background technique [0002] The excessive wear of rail vehicle wheels is a non-negligible factor that causes the deterioration of vehicle performance. The wear of the wheel tread (the protruding ring surface of the wheel body circumferential direction) and the wheel rim will also lead to derailment of the rail vehicle in severe cases, resulting in major safety accidents. Therefore, it has become an important subject to be solved in the heavy-duty high-speed operation of rail vehicles in my country to carry out wear test on wheels and improve the wear resistance of wheels. Previously, the detection of wheel wear was limited to on-site detection of wheels in the on-site operating environment, and wear resistance measurement was carried out to determine whether the tested wheels meet the u...

AI Technical Summary

Problems solved by technology

In addition, it is difficult to distinguish and judge the factors that affect the wear of the wheel through on-the-spot testing, so as to make further improvements to the symptoms

Therefore, the above-mentioned situation has led to a long cycle and low efficiency for the current research on the wear resistance of wheels, which to a certain extent has restricted the rapid development of my country's railway transportation, especially the heavy-duty truck transportation and high-speed railway.

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