Test module, system and test method for testing damping valve of oil damper

Abstract

The invention provides a test module, a system and a test method for testing the dynamic characteristic of the damping valve of an oil damper at high / low temperature. The test module includes an oil storage cylinder component, a guide component, a guide exhaust plate, a pressure cylinder, a piston-piston rod component, hydraulic oil, a bottom valve component, a pressure cylinder gasket, a bottom valve gasket, an oil guide plate component, a magnet, an oil return component, a framework oil seal, a screw cap, and a dustproof ring. The test module integrates the hydraulic oil, an oil supply mechanism, a tested damping valve and a sensor through the principle of integrated design. The entire test module can be placed in a high / low-temperature box. The problem on how to control the oil temperature of the tested damping valve can be conveniently, effectively and accurately solved. An automatic test system based on the test module and a related test method are further provided.

Description

technical field [0001] The invention relates to an integrated test module, an automatic measurement and control system and a test method capable of performing dynamic characteristic tests on oil pressure shock absorber damping valves in high and low temperature environments, belonging to hydraulic component test equipment and hydraulic component test technology , Technical field of hydraulic damper product testing. Background technique [0002] Oil shock absorber is an important part of modern railway vehicles such as high-speed rail, which plays an important role in the motion stability and comfort of the vehicle system, and the damper valve is a key component inside the oil pressure The damping characteristics of the compression shock absorber play a decisive role. Therefore, it is of great significance to test the dynamic characteristics of the oil pressure shock absorber damper valve and understand its performance and index. In addition, with the development of modern ...

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Problems solved by technology

[0006] (2) A complete set of hydraulic system including hydraulic pumps, various hydraulic control valves and oil tanks is used to supply oil to the piston valve, so the system is complex and bulky

Because at low temperatures, such as below -30°C, general hydraulic pumps can no longer effectively absorb oil, and many hydraulic control valves and pipelines cannot work normally, let alone carry out relevant tests effectively and accurately; moreover, in high and low temperature tests In the process, it is inconvenient and not energy-saving to control the temperature of the hydraulic oil of the entire hydraulic system

[0008] (4) Only the "flow-pressure characteristics" of the piston valve can be tested, and its dynamic characteristics and indicators such as response, opening and closing cannot be tested

[0009] In order to test the dynamic characteristics of the oil pressure shock absorber damper valve in high and low temperature environments, the conventional test method in the prior art is not feasible, so it is necessary to invent a new test principle and test module, automatic measurement and control system and experiment method

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