A method and device for testing the stiffness of an anti-roll torsion bar for a rail vehicle

Abstract

The invention relates to an anti-side-rolling torsion bar rigidity testing method and apparatus for rail vehicles. The anti-side-rolling torsion bar rigidity testing method for rail vehicles is implemented by installing a torsion bar in the anti-side-rolling torsion bar rigidity testing apparatus for rail vehicles, that is, the anti-side-rolling torsion bar rigidity testing method for rail vehicles includes the following steps: fixing the torsion bar through a clamping module of the testing apparatus, connecting a non-loading end of a torsion arm to a fixing module of the testing apparatus through a connection module of the testing apparatus for fixing, connecting a loading end of the torsion arm to a loading measuring module of the testing apparatus through the connection module, loadingthe torsion bar by means of the loading measuring module, and obtaining the rigidity value of the torsion bar according to displacement and load. For the anti-side-rolling torsion bar rigidity testingmethod s for rail vehicles, through modularized design of the testing apparatus, a plurality of modules are general; and the connection module is designed with a plurality of models according to thedemands of different torsion bars, so that when rigidity testing is performed on different torsion bars, testing of rigidity of various torsion bars with different shape can be realized only by exchanging the connection module with the corresponding model according to the specification of the torsion bar. Therefore, the anti-side-rolling torsion bar rigidity testing apparatus for rail vehicles hashigh universality and can reduce the test cost.

Description

technical field [0001] The invention relates to a stiffness test method and device, in particular to a stiffness test method and device for an anti-rolling torsion bar for a rail vehicle, and belongs to the technical field of locomotive detection. Background technique [0002] The anti-roll torsion bar is an important safety component to prevent the car body from rolling when the rail vehicle passes through a curve. When the car body rolls, the two connecting rods of the anti-roll torsion bar move in the opposite direction, and one Up, a connecting rod is down, the torsion bar bearing is subjected to combined bending and torsion loads, and deforms, and its elastic reaction moment resists the side roll of the car body. The stiffness of the torsion bar reflects the strength of the elasticity, directly affects the roll angle of the car body, and indirectly affects the comfort of the passengers, and requires a stiffness performance test before it is put into use. [0003] At pr...

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Problems solved by technology

[0007] The above-mentioned patents are some technical solutions declared by the applicant before, but there are still some problems. For example, in the solution of CN201520344577.4, the installation center distance of this structure is fixed, which cannot be universally applied to the stiffness of torsion bars of various shapes and models. test, and it is not known how to provide strong support for the loading cylinder when loading, so it is not known how to load the torsion bar; and the scheme CN200820158556.3 has a complex structure, the equipment is not easy to move, and the test time is long, so the operation and maintenance higher cost

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