Double-acting life test bed for shock absorber

Abstract

The invention relates to a double-acting life test bed for a shock absorber. The device comprises an upper exciting mechanism and a lower exciting mechanism, wherein the upper exciting motion is low-frequency large-amplitude (simulating the vibration of a vehicle body) motion, the lower exciting motion is high-frequency small-amplitude (simulating the vibration of wheels) motion, and the upper excitation and the lower excitation can adopt step motion or simultaneously motion. The device is further provided with a lateral bending mechanism and a reciprocating knob mechanism so as to perform enhanced life testing and performance degradation monitoring on the tested shock absorber. The device can test the shock absorber and is faster and more economic than road testing. The device is equipped with a cooling system and can cool down the heating of the shock absorber during the high-speed testing, thereby ensuring that the tested part can be in line with actual working conditions during the whole testing process. The device adopts an advanced HMI (human-machine interface) control and a PLC (programmable logic controller) at an inlet for programming, thereby enabling a control interface to be clear, simple and manifest and enabling an operator to be convenient to master the operation and the use of the device within a short period of time.

Description

technical field [0001] The invention relates to a shock absorber test equipment, in particular to a shock absorber double-action life test bench, which simultaneously monitors the performance decay of the shock absorber during the shock absorber durability test. Background technique [0002] Shock absorber double-action (durability) life test bench is a kind of durability test equipment that simulates the actual working conditions of shock absorbers on automobiles or motorcycles. 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 carried out continuously at a specific test site. It took a long time for one million times, and the actual situation was not easy to observe and test. Later, a single-action life test rig was used to replace the car for experiments, but th...

AI Technical Summary

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 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 life test rig was used to replace the car for experiments, but the single-action life test rig has low vibration frequency and long test period, which cannot actually simulate the condition of the car on the actual road.

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