Reliability testing platform for large radio hydraulic oil cylinder

Abstract

The invention relates to the technical field of mechanical manufacturing, in particular to a reliability testing platform for a large radio hydraulic oil cylinder. The reliability testing platform forthe large radio hydraulic oil cylinder comprises a power module, a testing module and a loading module. According to the reliability testing platform, the function of testing the reliability of a plurality of oil cylinders synchronously with high precision, variable loads and low power consumption is realized with a simpler component combination; a current situation that data tested by an existing oil cylinder testing platform is single is improved, two oil cylinders is subjected to a reliability test synchronously, and the testing stability is improved; a current situation that the existingoil cylinder testing platform only pays attention to a working state and a fault state is improved, the leakage amount of the oil cylinders is detected accurately in real time through 3 displacement sensors and 2 pressure sensors, and test data of a whole cycle is recorded; and a current situation that the existing oil cylinder testing platform cannot carry out a variable load test is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a reliability test platform for large radio hydraulic cylinders. Background technique [0002] The 500-meter Aperture Spherical Radio Telescope (FAST) is the largest and most sensitive radio telescope in the world. The active deformation of its reflecting surface is jointly driven by 2225 hydraulic actuators. The surface accuracy of the reflector is the basis for the high performance of the telescope, and the flexible cable-net structure is highly sensitive to the error of the node position of the reflector, so strict requirements are placed on the reliability of the actuator. In order to improve the reliability of the actuator, it is necessary to conduct a reliability test on the key component of the actuator, the cylinder, to grasp the remaining reliability of the actuator and ensure the long-term reliable and stable operation of the telescope. [0003] The ex...

AI Technical Summary

Problems solved by technology

[0003] The existing oil cylinder reliability test system has a constant load, and the load needs to be continuously loaded on the test platform. Because the reliability test has the characteristics of a long period, the power consumption of the oil cylinder reliability test is very large

At the same time, the existing cylinder reliability test only focuses on the two states of work and failure, and cannot monitor its degradation process

In addition, the existing oil cylinder reliability test platform can only test one oil cylinder to be tested, and it is impossible to do multiple simultaneous tests, and the data measured by different test platforms cannot be consistent in working conditions, resulting in certain errors in test data and results

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