Rail vehicle dual six degrees of freedom motion test platform

Abstract

The invention relates to a double-six-degree-of-freedom motion test platform for a railway vehicle. The double-six-degree-of-freedom motion test platform comprises two six-degree-of-freedom motion test platforms of the same structure. Each six-degree-of-freedom motion test platform consists of a motion platform, a transverse force application unit, a longitudinal force application unit, a verticalforce application unit, a double-air bag lifter, and a card installation test unit. The transverse force application unit, the longitudinal force application unit, the vertical force application unitand the double-air bag lifter are rotationally connected to the motion platform. The card installation test unit is fixed on the upper surface of the motion platform and is symmetrically arranged. Anactuator is directly fixed on the supporting surface of a corresponding movable supporting seat. The transverse force is eliminated through constraining the actuator. The oil inlet / outlet of the oilcylinder of the actuator is connected with a power source pipeline. The card installation test unit is composed of a three-dimensional force measuring platform and a fixture, and the fixture is fixedly connected to the upper surface of the three-dimensional force measuring platform through bolts. According to the invention, the longitudinal, transverse, radial, revolution and lateroversion stiffness of a railway vehicle bogie can be tested. Meanwhile, the abrasion of a piston rod and the abrasion of the oil cylinder are reduced and the service life is prolonged. The measurement precision is high, and the error is reduced. The double-six-degree-of-freedom motion test platform is high in automation degree, and simple and convenient in test.

Description

Technical field [0001] The invention relates to a rail vehicle bogie parameter test equipment, more specifically, the invention relates to a rail vehicle dual six-degree-of-freedom motion test platform. Background technique [0002] In the design and production of rail vehicle bogies, there are factors such as manufacturing technology. The actual values ​​of performance parameters are very different from theoretical values. It is necessary to detect whether the manufactured bogies meet the design performance requirements, and to ensure that a large number of rail vehicles can be put into operation. Safe and reliable operation requires regular detection of whether the bogie performance parameters of rail vehicles are at a normal level. Therefore, it is particularly important to develop a device for detecting bogie performance parameters. At present, similar testing equipment at home and abroad has problems such as large system errors caused by structural design, cumbersome manual ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a dual six-degree-of-freedom motion test platform for rail vehicles. The problem to be solved is: to test the longitudinal, transverse, radial stiffness, rotation stiffness and roll stiffness of the rail vehicle bogie; And the actuator is directly fixed on the support surface of the mobile support seat, which eliminates the lateral force to a certain extent, reduces the wear of the piston rod and the oil cylinder, and prolongs the service life; the three-dimensional force measuring platform can realize accurate measurement of the rail vehicle bogie The real load of the deformation of the first and second suspensions; it has a high degree of automation and is simpler and more convenient to test than similar equipment

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