Special torque measuring device for lead screw connection combination and in-situ calibration method

Abstract

The invention discloses a special torque measuring device for a lead screw connection combination and an in-situ calibration method. The device comprises an upper computer, a driving module, a PID control torque loading module, an overload protection module, a measurement module, a torque transmission module, an extreme environment simulation module, a support frame and an experiment platform. In the torque measurement, under the temperature of each point, the measurement value of a torque and rotating speed sensor is recorded, and the torque set value and the measurement value of the torque and rotating speed sensor are compared, so that the torque output of the lead screw connection combination under the measurement point can be obtained, and the test of the torque performance of the lead screw connection combination is completed. In the calibration process, an in-situ calibration module is added, and a standard torque sensor is used for carrying out in-situ calibration on the torque and rotating speed sensor. According to the invention, the torque and rotating speed sensor can be calibrated without dismounting the torque and rotating speed sensor, and the output torque performance of the lead screw connection combination can be measured in a high and low temperature environment of -70 DEG C to 100 DEG C.

Description

technical field [0001] The invention relates to a screw connection combination torque measuring device, in particular to a screw connection combination special torque measurement device and an in-situ calibration method. 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. The ground test and calibration technology of the torque performance of key components of the space d...

AI Technical Summary

Problems solved by technology

[0005] In summary, the current research results obtained in the torque performance testing of key components of space docking mechanisms in my country cannot meet the ground testing requirements of future deep space exploration spacecraft.

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