A three-rocker arm test device for composite motion microgravity deployment of space mechanism

Abstract

The present invention provides a three-rocker arm test device for composite motion microgravity deployment of a space mechanism, comprising a rocker arm support, a No. 1 spindle support, a No. 2 spindle support, a No. 1 rocker arm assembly, a No. 2 rocker arm assembly, a No. No. 1 rocker arm assembly, No. 1 spindle body, No. 2 spindle body, double shaft assembly and single shaft assembly; the rocker arm bracket is mounted to the truss, and the top and bottom ends of one side of the rocker arm bracket are respectively installed with a No. A No. 1 spindle body is installed between the No. 1 spindle brackets, a No. 2 spindle bracket is installed on the top and middle of the other side of the rocker arm bracket, and a No. 2 spindle body is installed between the two No. 2 spindle brackets; the No. 1 rocker arm The assembly and the No. 2 rocker arm assembly are connected to the No. 1 spindle body through a double shaft assembly, and the No. 3 rocker arm assembly is connected to the No. 2 spindle body through a single shaft assembly. The invention always provides a device for deployment in a microgravity environment, which reliably verifies the feasibility of the ground deployment test of the deployment mechanism.

Description

technical field [0001] The invention belongs to the field of test devices, in particular to a three-rocker test device used for compound motion microgravity deployment of a space mechanism. Background technique [0002] With the continuous development of human space exploration technology, the continuous expansion of the scale of exploration, the increasing frequency of human activities, and the increasing number of launchers, in the face of high development and launch costs, space agencies gradually tend to have a high storage ratio. The weight of the mechanism is continuously reduced, and the launch cost can be reduced as much as possible while realizing its function. For the lightweight design of the mechanism, it is very important to be able to realize its function. For the deployment mechanism, the robustness of the system design needs to be verified on the ground. Due to the difference of the ground gravity environment, it is necessary to carry out the microgravity gr...

AI Technical Summary

Problems solved by technology

Due to the difference in the ground gravity environment, the gravity of the mechanism needs to be unloaded on the ground, and the microgravity ground verification test is carried out. The development process of the microgravity unloading system is also constantly improving; the simulation technology of the rocker suspension test device is widely used in spacecraft For the ground microgravity deployment test of mechanisms, for the mechanism deployed around a fixed axis in the plane, the rocker suspension unloading method is often used, but for the working condition that the center of mass of the deployment mechanism changes continuously with the deployment process, the traditional suspension The hanging method cannot be satisfied with the microgravity deployment of the mechanism, and it is necessary to develop a test device for multi-rocker suspension unloading

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