A Mechanical Device for Impact Fatigue Test of Components

Abstract

The invention provides a mechanical device for the impact fatigue test of parts, which includes a T-shaped bracket, a cylinder support is fixed on the horizontal bottom plate of the T-shaped support, an execution cylinder is connected to the cylinder support, and the execution cylinder The cylinder end of the cylinder is connected with the tripping mechanism assembly through a single-rod joint bearing; the upper part of the tripping mechanism assembly is connected with the cylinder bracket fixed on the vertical pole of the T-shaped bracket; the T-shaped bracket A guide bracket is fixed on the top of the vertical pole, and guide wheels are arranged on the guide bracket. The device is small in size, occupies a small space, and the load size can be adjusted, which can simulate the actual stress status of related parts; moreover, the detection process is controllable, and the fault observation and detection are convenient. In addition, the device has an all-mechanical structure, high reliability, and relatively low manufacturing and testing costs.

Description

technical field [0001] The invention relates to an impact fatigue test device, in particular to a mechanical device for impact fatigue test of components. Background technique [0002] During its life cycle, forklift parts are often subjected to cyclic impact of a certain load. After a long time, the parts will suffer from fatigue damage, which will lead to failure and unusability. For example, the steel cylinder bracket used by the liquefied gas forklift will be impacted by the full gas cylinder during the ventilation process; when the whole machine passes the bumpy blocks and stacking operations, the relevant parts of the door frame and the vehicle frame will be impacted by the impact from the ground and the pile. The impact of stacked goods, etc.; during use, parts such as forklift cylinder brackets, door frames, and vehicle frames, due to the cyclic effect of impact loads, often lead to failures such as weld tearing, which seriously affects the use and safety of the enti...

AI Technical Summary

Problems solved by technology

[0003] At present, the impact fatigue test simulation of parts is often realized by electromagnetic iron with large suction force, which occupies a large space and high test cost; and the all-mechanical test device cannot realize the freedom of test load due to the lack of a quick release mechanism. Shock; related tests using the cylinder with the quick abandonment valve, due to the air resistance of the cylinder itself, the effect is not ideal, it is difficult to accurately find the weak points of the parts, which affects the progress of product improvement and upgrading

Images