Service life testing platform of control element of heavy-duty car gearbox operating system

Abstract

The invention relates to a service life testing platform of a control element of a heavy-duty car gearbox operating system, comprising a testing platform control cabinet and a testing control element mounting platform, wherein the testing platform control cabinet is internally provided with a manual stop valve, a decompression valve, a pressure gage and an air filtering adjusting device, which are sequentially connected through gas circuit pipelines; and the testing control element mounting platform is provided with a multi-path control element service life testing system formed by a cam, two double-H air valves, a secondary box air cylinder assembly, a motor, a counter, a secondary box air cylinder, a middle position air cylinder assembly and the like. In actual work, compressed air enters the double-H air valves through the air filtering adjusting device; ejection rods of the double-H air valves move continuously to change high-gear and low-gear gas circuits to drive the air cylinders to carry out conversation of a high gear and a low gear; and after the counter is used for carrying out counting treatment, the measurement of continuous and automatic air control motion to each control element is further realized. The product has the advantages of simple structure, low cost, high testing efficiency, convenience for operation, capability of carrying out a plurality of service life tests of the control element and the like.

Description

technical field [0001] The invention belongs to the technical field of test equipment for automobile components, and relates to a test stand capable of carrying out life tests on the control elements of the transmission control system of heavy-duty vehicles. Background technique [0002] The automobile transmission control system is one of the key components of the automobile. In the prior art, there are many control elements on the operating mechanism adopted by the known heavy-duty vehicles equipped with double countershaft series transmissions, such as single H air valve, double H air valve, air filter regulator, preselection valve, range gear, etc. Cylinder, reverse gear and neutral gear pressure switch, etc., the reliability of the service life of these control components is directly related to the use and safety performance of the heavy-duty vehicle. At present, the method of testing the service life performance of the above-mentioned control components in this field ...

AI Technical Summary

Problems solved by technology

At present, the method of testing the service life performance of the above-mentioned control components in this field is generally to conduct a life test for each control component separately, which undoubtedly increases the test cost and prolongs the test time for multiple control components in the vehicle. , so there is an urgent need for a test bench that can do multiple control component life tests at the same time

In addition, the existing control component life test system still has the disadvantages of complex structure, poor monitoring and control performance, inconvenient operation and installation, and low test efficiency.

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