Electromechanical small-sized variable speed control moment gyro

Abstract

The invention relates to an electromechanical small-sized variable speed control moment gyro, especially a variable-speed small-sized single gimbal control moment gyro, belonging to the technical field of control moment gyro. The control moment gyro disclosed herein comprises a high speed assembly, a high speed drive circuit assembly, a connection support and a low speed assembly, wherein the high speed assembly provides a moment of inertia required by an angular momentum; the high speed drive circuit assembly is arranged at the back of the high speed assembly, drives a high speed motor rotor, a bearing assembly rotor and a wheel body in the high speed assembly in control moment gyro mode to rotate in an instructed rotating speed to generate the constant angular momentum required by the control moment gyro, and drives the high speed motor rotor, the bearing assembly rotor and the wheel body in the high speed assembly in momentum wheel mode to raise / reduce speed to input the moment of the rotor axial direction. According to the invention, the electromechanical design is realized without adding structural volume, the product has small volume, light weight, and good heat radiation, and is suitable for attitude control and rapid maneuvering application of small and medium size spacecrafts.

Description

technical field [0001] The invention relates to a mechatronic small variable-speed control moment gyroscope, in particular to a variable-speed small single-frame control moment gyroscope, which belongs to the technical field of control moment gyroscopes. Background technique [0002] As small and medium-sized spacecraft have more and more urgent requirements for attitude control agility, small single-frame control moment gyroscopes emerge as the times require. At present, there is no strict division of the size of single-frame control torque gyroscopes. Generally, those with angular momentum less than 5Nms are called micro control torque gyroscopes, those with angular momentum between 5Nms and 50Nms are called small control torque gyroscopes, and those with angular momentum Those between 50Nms and 500Nms are called medium-sized control moment gyroscopes, and those with angular momentum greater than 500Nms are called large-scale control moment gyroscopes. The single-frame co...

AI Technical Summary

Problems solved by technology

Although the United States, the United Kingdom, and Japan have developed the principle prototypes of miniature variable-speed control moment gyroscopes, none of them have mechatronic design technology, and because of their small angular momentum, it is difficult to be applied to small and medium-sized spacecraft.

Images