Loader work device load spectrum test system, work device and loader

Abstract

The invention relates to a loader work device load spectrum test system, a work device and a loader. The system comprises a load measurement module, wherein the load measurement module comprises a two-dimensional force detection part, the two-dimensional force detection part is arranged on the hinge position of a moving arm and / or a pull rod on a bucket and further penetrates through hinge holes at two sides of each hinge position to make the moving arm and / or the pull rod to rotate through taking the two-dimensional force detection part as a shaft, and the two-dimensional force detection part is used for detecting bearing forces of each hinge position along the vertical and transverse directions of the loader when the bucket is in operation. The system is advantaged in that the bearing forces are detected by the two-dimensional force detection part through acquiring cutting strain of each hinge position, a loading form is consistent with an original pin structure, reliability of the two-dimensional force detection part can be guaranteed in the test process, a problem of failure because of overlarge force bearing intensity is not easy to generate, load spectrum of the work device can be reliably acquired by the loader in operation, the original bucket structure can be fully utilized, setting is simple, and strong universality is realized.

Description

technical field [0001] The invention relates to the technical field of load testing of loaders, in particular to a load spectrum testing system for a working device of a loader, a working device and a loader. Background technique [0002] The fatigue life of the working device of the loader has gradually been paid attention to as an important index to measure the reliability of the loader, and the load spectrum of the working device of the loader is the premise and basis for studying the fatigue reliability of the working device of the loader. Researching a practical and systematic method of collecting, compiling and applying the load spectrum of working devices in engineering is the key to solving the bottleneck in the development of my country's loader industry. [0003] In the prior art, the load spectrum test of the working device of the loader is generally carried out by pasting strain gauges on the working device, and the load spectrum of the working device is deduced ...

AI Technical Summary

Problems solved by technology

[0004] However, when the loader is shoveling materials, due to the collision and friction of the materials and the harsh working environment, the pasted strain gauges are easy to fall off and damage, which greatly hinders the smooth progress of the load spectrum acquisition test. The measurement is inconvenient and the cost is high.

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