Perpendicularly-hung high-precision torque testing device in thermal vacuum environment
A technology of torque testing and thermal vacuum, applied in measuring devices, torque measurement, power measurement, etc., to achieve the effect of improving test accuracy
Inactive Publication Date: 2014-01-08
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology
[0006] Aiming at problems such as the deformation of the measured piece and the frictional influence of the magnetic fluid seal transmission device in the thermal vacuum torsion test, the present invention provides a vertically suspended thermal vacuum environment that eliminates friction and is not affected by the deformation of the measured piece. High precision torque test device
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[0015] The present invention is further described now in conjunction with accompanying drawing.
[0016] combined with figure 1 , a high-precision torque testing device in a vertically suspended thermal vacuum environment, comprising a thermal vacuum tank 1, a device under test 2 and an output shaft 3 of the device under test, the device under test 2 is fixedly connected to the output shaft 3 of the device under test, and is Both the test piece 2 and the output shaft 3 of the tested piece are in a thermal vacuum tank. The device also includes a transmission shaft 5, an air bearing sleeve, a non-magnetic base 8, and a magnetic core assembly. The air bearing sleeve includes a first air bearing sleeve 6 and a second air bearing sleeve. The second air bearing sleeve 7, the magnetic core assembly, the first air bearing sleeve 6 and the second air bearing sleeve 7 are sequentially set on the transmission shaft 5, the magnetic core assembly and the first air bearing sleeve 6, the fir...
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The invention relates to a perpendicularly-hung high-precision torque testing device in a thermal vacuum environment. The perpendicularly-hung high-precision torque testing device in the thermal vacuum environment comprises a thermal transmission shaft, air-bearing sleeves, a nonmagnetic base, a magnetic core assembly, a vacuum tank, a tested part and a tested part output shaft, wherein the tested part is connected with the tested part output shaft, the tested part and the tested part output shaft are arranged in the thermal vacuum tank, the thermal transmission shaft is sleeved with the magnetic core assembly and the two air-bearing sleeves in sequence, a flange plate is installed on the thermal transmission shaft, and an annular coding disk is installed on an outer disk of the flange plate in a sleeved mode. The perpendicularly-hung high-precision torque testing device in the thermal vacuum environment has the advantages that due to the fact that the thermal transmission shaft is sleeved with the two air-bearing sleeves, the thermal transmission shaft is supported; due to the advantage that air-bearing devices are free of friction, influence caused by friction of an ordinary bearing on torque measurement is avoided, and testing accuracy is further improved; due to the facts that exhaust holes are evenly distributed in the end faces, close to the flange plate, of the two air-bearing sleeves in the axial direction, and air film is formed between the two air-bearing sleeves and the flange plate, direct contact between the flange plate and the air-bearing sleeves is avoided, and influence caused by relative friction between the flange plate and the air-bearing sleeves in the process of rotation on measurement results is eliminated.
Description
technical field [0001] The invention relates to a sealing test device under a thermal vacuum experiment, in particular to a high-precision torque testing device under a vertically suspended thermal vacuum environment. Background technique [0002] Thermal vacuum test refers to the test to verify the performance and function of the tested part under the specified vacuum and thermal cycle conditions. The thermal vacuum test not only requires a vacuum simulation system capable of simulating the vacuum environment of outer space, but also requires a device that can drive or load the equipment to simulate the drive and load of the mechanism, as well as real-time high-precision measurement of the torque, Capability of information such as rotation angle and rotational speed. [0003] In the thermal vacuum test of torsional loading on the tested part, due to the thermal vacuum environment, the reliability of sensors and power equipment is reduced, the service life is shortened, and...
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IPC IPC(8): G01L3/00
Inventor 谢毅
Owner ZHEJIANG GONGSHANG UNIVERSITY