Torsion experiment testing device under hot vacuum environment

Abstract

The invention relates to a torsion experiment testing device under hot vacuum environment. The torsion experiment testing device under the hot vacuum environment comprises an adjusting machine base, an observation group, a poking rod device, a connection spline and a hot vacuum box. The adjusting machine base and the poking rod device are installed in the hot vacuum box. A part to be tested is installed on the adjusting machine base. The output shaft of the part to be tested is connected with a sealed transmission shaft of a magnetofluid through the connection spline. The sealed transmission shaft of the magnetofluid penetrates through the hot vacuum box and is led out of the box. The connection spline is connected with the poking rod device. The observation group is arranged on a box wall of the hot vacuum box. According to the torsion experiment testing device under the hot vacuum environment, the observation group is used for observing and recording the position of the output shaft of the part to be tested. In the temperature variation process of the hot vacuum box, the poking rod device is controlled to disconnect the output shaft of the part to be tested and the sealed transmission shaft of the magnetofluid. After the temperature is stable, the adjusting machine base is used for adjusting the spatial position of the part to be tested in a hot vacuum tank, the output shaft of the part to be tested is connected with the sealed transmission shaft of the magnetofluid again and a follow-up test is carried out. Affection on the test by deformation of the part to be tested in the hot vacuum test is effectively avoided, the operation is easy and the testing precision is high.

Description

technical field [0001] The invention relates to a transmission test device under thermal vacuum test Background technique [0002] Aerospace equipment has extremely high performance requirements due to the particularity of its application in the outer space environment. In order to meet the design requirements, it is necessary to simulate the thermal vacuum environment of outer space on the ground, and test the performance and function of the DUT under vacuum and thermal cycle conditions. For example, in the thermal vacuum test that drives or loads the tested part to simulate the drive and load of the tested mechanism, not only a reasonable transmission device is required, but also real-time high-precision measurement equipment such as torque, rotation angle and rotational speed. Ability. [0003] Due to the reduced reliability of sensors and power equipment in a thermal vacuum environment, the service life is shortened, and it is difficult to control during the test proce...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the deformation of the test piece in the thermal vacuum torsion experiment affects the test, and the test of the no-load characteristics of the test piece in the thermal vacuum environment is difficult to operate, the present invention provides a conveniently operable machine that is not affected by the deformation of the test piece. Thermal vacuum environment torsion experiment test device

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