Double-acting durability test bed for vibration absorber

Abstract

The invention relates to a double-acting durability test bed for a vibration absorber. The double-acting durability test bed comprises an upper vibration exciter with an upper crankshaft and connecting rod mechanism and a lower vibration exciter with a lower crankshaft and connecting rod mechanism, wherein the upper crankshaft and connecting rod mechanism is connected with a swinging device which is connected with a rod part of a vibration absorber to be detected through a pressure sensor; the up-down polarization movement of the swinging device is realized by the upper crankshaft and connecting rod mechanism; the lower crankshaft and connecting rod mechanism is connected with a lower connecting base which is connected with a cylinder part of the vibration absorber to be detected; the up-down polarization movement of the lower connecting base is realized by the lower crankshaft and connecting rod mechanism; a rotary cylinder is mounted on the swinging device and drives a vibration absorber sample to swing in a reciprocating manner through a pull rod; a lateral cylinder is mounted at the cylinder part of the vibration absorber to be detected; and a piston rod of the lateral cylinder is arranged towards the cylinder part of the vibration absorber. The double-acting durability test bed can accord with some special vibration absorbers to do durability tests and can provide more accurate and reliable data.

Description

[0001] The invention relates to a shock absorber double-action durability performance test bench, in particular to a test device for testing the durability performance of automobile shock absorbers. Background technique [0002] The shock absorber double-action durability test bench is a kind of durability test equipment for simulating the actual working condition of the shock absorber in the car. And in the shock absorber durability test, the performance attenuation of the shock absorber is monitored at the same time. [0003] In the early stage of my country's shock absorber test and development, the durability test was done on the car, and the test was done continuously in a specific test field by driving. It took a long time for one million times, and the actual situation was not easy to observe and test. Later, a single-action durability test bench was used to replace the car for experiments, but the single-action durability test bench had a low vibration frequency and a ...

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Problems solved by technology

[0003] In the early stage of my country's shock absorber test and development, the durability test was done on the car, and the test was carried out continuously in a specific test field. It took a long time for one million times, and the actual situation was not easy to observe and test.

Later, a single-action durability test bench was used to replace the car for experiments, but the single-action durability test bench has a low excitation frequency and a long test period, which cannot actually simulate the condition of the car on the actual road.

Later, there was a double-action durability test bench, but its function and performance had many defects, for example: the stroke of the test sample was small, which could not meet the durability tests of more shock absorber sample seats; The lateral force cannot be tested and displayed, and cannot accurately reflect all the stress conditions of the sample; moreover, the upper movable mounting plate of the existing test bench cannot be adjusted, only the lower movable plate can be adjusted, and it cannot be fixed after adjustment. The range and accuracy of the test are greatly affected; the movement of the cooling water tank and the shock absorber will also have a certain impact on the accuracy of the test data

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