Torque measuring system special for butt-joint lock driving combination and in-situ calibration method

Abstract

The invention discloses a torque measuring system special for a butt-joint lock driving combination and an in-situ calibration method. The device comprises an upper computer, a torque accurate loading module, a torque overload protection module, a torque measuring module, a torque and rotating speed sensor in-situ calibration module, a torque transmission module, a high and low temperature environment controller, a supporting frame and an experimental platform. In calibration, the torque and rotating speed sensor is calibrated through a standard sensor. In torque measurement, under the temperature of each point, the measurement value of the torque and rotating speed sensor is recorded, and a torque set value is compared with the measurement value of the torque and rotating speed sensor, so that the torque output of the lock-joint driving combination under the measurement point can be obtained, and the test of the lock-joint driving combination is completed. According to the system and method of the invention, the torque and rotating speed sensor can be calibrated without being dismounted, and the output torque characteristic of the lock-joint driving combination can be measured at the high and low temperature of-70 DEG C to 100 DEG C.

Description

technical field [0001] The invention relates to the field of torque measurement of a docking lock driving combination, in particular to a torque measuring system and an in-situ calibration method dedicated to a docking lock driving combination. Background technique [0002] The aerospace industry is the most challenging high-tech industry in the world today and can most stimulate the development of related industries. The development of the aerospace industry is a symbol of the country's scientific and technological level, and it is also a strategic measure to enhance the country's economic strength and national defense strength. The successful completion of the rendezvous and docking of Tiangong-1 and Shenzhou-8 marks that my country has entered the space station era. However, there is still a considerable gap between my country's space docking technology and that of the United States and Russia, and the ground test and calibration technology for the torque performance of ...

AI Technical Summary

Problems solved by technology

[0005] At present, in order to ensure the measurement accuracy of the torque speed sensor, it is necessary to periodically disassemble the sensor for inspection, and there may be deviations caused by installation and environmental factors when it is reinstalled into the measuring device; after the verification, the device needs to be re-adjusted, resulting in The verification and maintenance time is long, and at the same time, in order to increase the reliability of the spacecraft, the products of the docking mechanism have been carefully selected, a large number of repeated tests, and a lot of time and money have been used in exchange for cost. my country will build a space station around 2022, and the follow-up space station tasks will surge , obviously this method has seriously slowed down the progress of the space station mission

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