Lateral load test structure of h-shaped force-measuring frame

Abstract

The invention provides a transverse load testing structure of an H-shaped dynamometric framework. The transverse load testing structure of the H-shaped dynamometric framework comprises a set of transverse load full bridge converter formed by a twenty-first strain gauge, a twenty-third strain gauge, a twenty-second strain gauge and a twenty-fourth strain gauge, the twenty-first strain gauge, the twenty-second strain gauge, the twenty-third strain gauge and the twenty-fourth strain gauge are identical in specification, the twenty-first strain gauge, the twenty-second strain gauge, the twenty-third strain gauge and the twenty-fourth strain gauge are all bonded on the center position of the root of a positioning tumbler base and perpendicular to the root of the positioning tumbler base, wherein two of the strain gauges are located on a position, close to the exterior, of the center position and both penetrate through the center of an outer side installation hole of the positioning tumbler base root, and the other two of the strain gauges are located on a position, close to the interior, of the center position. According to the transverse load testing structure of the H-shaped dynamometric framework, the relationship between the load exerted on a framework structure and output voltage can be obtained, and the quasi-static relationship between the load exerted on the framework structure and fatigue damage key position strain of the frame structure also can be obtained at the same time, so that the problem that the load tested through a traditional direct testing method is in a dynamic relationship with the fatigue damage key position strain of the frame structure is solved.

Description

technical field [0001] This invention relates to locomotive frames, and more particularly to a structure for load testing locomotive frames. Background technique [0002] In the prior art, when analyzing the load of the locomotive bogie frame structure, the direct load test method is adopted, that is, the axle box spring and the positioning arm of the bogie are respectively made into independent load cells, and the axle box spring and the positioning arm are tested synchronously. The load-time history of the arm under actual operating conditions, and combined calculations to obtain the main load of the frame structure. Although this method has high measurement accuracy, there is a dynamic relationship between the measured load and the structural strain. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a lateral load testing structure of an H-shaped force-measuring frame to solve the problem o...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a lateral load testing structure of an H-type force-measuring frame to solve the problem of a dynamic relationship between the load measured by the existing testing structure and the structural strain

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