Sun wing hinge moment testing device

Abstract

The invention discloses a solar array hinge torque tester which includes a motor, a support, a base and a reducer, and is characterized in that the base and the support with rack are vertically fixed and connected; a fixed tip is arranged on the base; the motor and the reducer are arranged in the base; the motor and the reducer are fixed and connected by a coupler; the fixed tip is fixed on the reducer; the support is provided with a movable tip movably connected with the rack; the reducer is provided with an angle sensor; the movable tip is provided with a torque sensor; the tested data is connected to a PC to be processed; the invention is integrated with movement, control and measurement, adopts a special heating structure of initiative temperature control, can work under -100 DEG C to +70 DEG C of wide temperature, solves the problems of poor adaptability and stability of the tester under vacuum, high-temperature and low-temperature environment, is very applicable in ground simulation test of hinge assembly components of all star and ship solar array unfolding mechanisms, and has the advantages of high test precision, good load matching performance, little temperature drift of the torque and angle sensors.

Description

technical field [0001] The invention relates to the testing field of space application equipment, in particular to a solar wing hinge moment testing device. Background technique [0002] At present, the hinge assemblies used for star and ship solar wing deployment mechanisms are generally in the form of root hinge assemblies (single hinge) or inter-plate hinge assemblies (double hinge), each hinge assembly includes a locking hook, a locking hook shaft, U6 Joint bearings, bearing sleeves, bearing retaining rings, slideways, outer gaskets, planar scroll spring movable parts, etc., because the driving torque, pressing torque and frictional torque of the solar wing hinge assembly are the indicators that reflect the comprehensive performance of the product, so it is important for the solar wing The torque test of the wing hinge is particularly important. The structure of the solar wing hinge assembly is relatively complex. It has complex working conditions such as surface contact...

AI Technical Summary

Problems solved by technology

[0002] At present, the hinge assemblies used for star and ship solar wing deployment mechanisms are generally in the form of root hinge assemblies (single hinge) or inter-plate hinge assemblies (double hinge), each hinge assembly includes a locking hook, a locking hook shaft, U6 Joint bearings, bearing sleeves, bearing retaining rings, slideways, outer gaskets, planar scroll spring movable parts, etc., because the driving torque, pressing torque and frictional torque of the solar wing hinge assembly are the indicators that reflect the comprehensive performance of the product, so it is important for the solar wing The torque test of the wing hinge is particularly important. The structure of the solar wing hinge assembly is relatively complex. It has complex working conditions such as surface contact, line contact, sliding friction, and "edge-edge" friction, and the thermal vacuum environment affects the cooperation between the parts. , in the harsh space environment, the contact stress of the friction pairs is constantly changing, especially during the deployment of the solar wing, the contact stress of each friction pair of the hinge assembly changes even more, and the working conditions of the friction pairs of the entire hinge assembly Difficult to analyze and determine

Therefore, it is impossible to accurately calculate the driving torque of the hinge. In order to realize the quality control of the hinge components, it is necessary to use a combined test method to test under the conditions of the simulated space environment on the ground to obtain accurate and reliable test data to improve the reliability of space application equipment. and the level of research and development, there is currently no dedicated solar wing hinge torque testing equipment

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