A high-precision hydraulic buffer and an actuator dynamic and static test platform

Abstract

The invention discloses a high-precision hydraulic buffer and an actuator dynamic and static test platform. A marble test bench, a guide rail sliding block connection plate A, a stator, a mover, a guide rail sliding block and a grating ruler are comprised; the left side of the marble test bench is provided with a voice coil motor; and the voice coil motor includes a stator and a mover. One end ofthe mover is provided with a mover connecting plate, and a side wall of the mover connecting plate is provided with a sliding block connecting plate. The two sides of a tested component are respectively connected by ball joints. The left side of the tested component is connected with the guide rail sliding block connecting plate A. The right side of the tested component is connected with a guide rail sliding block connecting plate B. The guide rail sliding block connecting plate B is connected with a pulling pressure sensor connecting piece. A pulling pressure sensor is connected with a load guide rail connecting plate installed on the left side of a load. The system of the invention adopts the voice coil motor as a servo driving device, and uses the grating ruler to test the relative displacement of the tested component. The invention is applied to dynamic and static testing of the buffer and the actuator, and can conveniently and quickly adjust the load form during testing, thus improving the convenience of testing and reducing the cost of testing.

Description

technical field [0001] The invention relates to a test platform, in particular to a dynamic and static test platform for high-precision hydraulic shock absorbers and actuators. Background technique [0002] With the continuous development of my country's high-speed railways, people's requirements for the safety of train operation and ride comfort are gradually increasing; but with the continuous improvement of operating speed, the vibration level of trains is also increasing. In order to attenuate the vibration energy transmitted from the track to the car body and improve the ride comfort and running stability of the train, it is necessary to design the suspension system reasonably. The train suspension system mainly includes: primary springs, primary vertical shock absorbers, rubber nodes, secondary transverse shock absorbers, air springs, anti-snaking shock absorbers, etc. As the main component of the suspension system, the shock absorber can effectively reduce the vibrat...

AI Technical Summary

Problems solved by technology

At present, both the shock absorber and the actuator test bench have problems such as low test accuracy and large internal errors of the system.

In addition, the measurement of the shock absorber and the actuator requires two different test benches, and only a single actual working condition can be simulated during the measurement, and the dynamic performance of the two cannot be obtained, and the test cost is relatively high

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