Engineering machinery axle housing vertical bending fatigue test system

Abstract

The invention relates to an engineering machinery axle housing vertical bending fatigue test system. The engineering machinery axle housing vertical bending fatigue test system aims at overcoming the shortcomings that an axle housing in an existing test system is prone to damage, a high-intensity connection tool is needed in the testing process, and the testing working condition and the real working condition have difference. The test system comprises an axle housing sample piece, supports and hydraulic actuators, the hydraulic actuators are installed on a portal frame, the axle housing sample piece is horizontally and reversely arranged on the upper portions of the supports and is fixedly connected with the supports, and the hydraulic actuators exert pulse loads on the axle housing sample piece at the position of the wheel interval of the axle housing sample piece. According to the system, the tested axle housing sample piece is horizontally and reversely arranged, the supports are fixed on a test platform so that high intensity can be achieved and vehicle frames can be simulated really, a connection tool for simulating the vehicle frames in a traditional test system is not needed, the hydraulic actuators are connected with two crossed knuckle bearings to convey pulse loads, the free deformation movement of the sample piece is released to the maximum degree, the sample piece bears vertical and downward loads, and the actual load stress condition of an axle housing is simulated approximately.

Description

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AI Technical Summary

Benefits of technology

This new design improves upon existing tools by providing support for them at different angles from their usual position when used properly. It also ensures they are located correctly along the axis's length during use without interferring or affecting its performance.

Problems solved by technology

This patented describes an existing testing process for assessment of mechanical properties related to the design of railway vehicles' housings during use under various environmental stress levels (bearthquake). However, current methods have limitations with regards to accurately measuring these physical characteristics due to their limited ability to provide accurate data over large areas while being able to accommodate different types of loads applied simultaneously.

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