Triaxial air bearing table high-precision mass center balance adjusting device and method

Abstract

The invention provides a triaxial air bearing table high-precision mass center balance adjusting device and method. The device comprises a laser tracker, a laser gyroscope, a reaction flywheel, an under-table control computer, vertical direction mass center adjusting mechanisms and horizontal direction mass center adjusting mechanisms. The laser tracker is used for measuring change of the swing angle of a table body mass center. The laser gyroscope is used for measuring the angular velocity change cycle of the table body mass center. The under-table control computer is used for computing table body mass center deviation according to change of the swing angle, the swing cycle and the wheel control rotating speed output value of the reaction flywheel so that a movement displacement control instruction is generated according to mass center deviation. The vertical direction mass center adjusting mechanisms and the horizontal direction mass center adjusting mechanisms are used for moving positioning blocks according to the movement displacement control instruction so as to perform table body mass center adjustment. The vertical direction mass center adjusting mechanisms and the horizontal direction mass center adjusting mechanisms are arranged so that the three-dimensional direction mass center adjustment capacity and adjustment precision requirement can be realized.

Description

Technical field [0001] The invention relates to a three-axis air bearing table, in particular to a high-precision mass center balancing device and method for a three-axis air bearing table. Background technique [0002] The three-axis air bearing table is mainly used to simulate the zero-gravity and frictionless space environment, realize three-axis free rotation, and is widely used in the ground physical simulation test of spacecraft. In order to ensure the effectiveness of the ground simulation test, it is necessary to ensure that the interference torque of the three-axis air bearing table meets the mission requirements. [0003] The load-bearing component of the three-axis air bearing table is the air bearing, and the air film between the air bearing ball and the air bearing ball socket carries the quality of the simulation part and at the same time ensures the three-axis low friction rotation of the air bearing ball. When the center of mass of the three-axis air bearing table ...

AI Technical Summary

Problems solved by technology

Li Yanbin and Baotou Steel theoretically proposed in the paper "Dynamic Modeling of Automatic Balance System of Three-degree-of-Freedom Air-floor Table" (see "Journal of Chinese Inertial Technology", 2005, Volume 13, No. 5, Page 83-87). The three-axis air flotation table automatic balancing device was proposed, and no specific implementation plan was given, which is difficult for engineering application

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