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Control moment gyroscope

A technology for controlling torque gyroscopes and torque motors, which is applied in non-electric variable control, control/regulation systems, torque/mechanical power control, etc., can solve problems that cannot meet the high pointing accuracy and light weight of agile satellites, and the low precision of resolvers , heavy weight and other issues, to achieve high-precision position output, avoid magnetic interference, and light weight

Active Publication Date: 2019-04-09
SHANGHAI AEROSPACE CONTROL TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used control torque outer frame angle measuring sensors at home and abroad include resolvers and circular induction synchronizers. The resolution of the resolver is low and the weight is heavy. The circular induction synchronizer has high precision but heavy weight, which cannot meet the high pointing accuracy of most agile satellites. and lightweight requirements

Method used

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Embodiment Construction

[0020] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, a control torque gyroscope provided in this embodiment includes: a momentum wheel 10, an outer frame system 20, a torque motor 30 and a photoelectric encoder 40. In this embodiment, the photoelectric encoder 40 is an absolute photoelectric encoder Encoder.

[0022] The outer frame system 20 includes an outer frame 200, a driving end supporting frame 201 and a sensing end supporting frame 201' respectively fixed on both sides of the outer frame 200, a precision bearing 202, a driving end main shaft 203 and a sensing end main shaft 204 , the driving end main shaft 203 is installed on the driving end supporting frame 201 through the precision bearing 202 , and the sensing end main shaft 204 is installed on the sensing end supporting frame 201 ′ through the precision bearing 202 . ...

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Abstract

The invention discloses a control moment gyroscope, which comprises a momentum wheel, an outer frame system, a moment motor and an optoelectronic encoder, wherein the momentum wheel is used for providing a constant angular momentum; the outer frame system is used for supporting the momentum wheel and providing a fixing interface for mounting a satellite; the a torque motor is used for driving thehigh torque output and the low-speed smooth rotation of the outer frame system; and the photoelectric encoder is used for measuring the absolute position of the outer frame angle of the outer frame system. Under the maneuvering condition of the control moment gyroscope, the high-precision moment required for the rapid maneuvering of the whole satellite is generated, and the high-precision angularmomentum exchange with the whole satellite is realized through the accurate control of angular momentum direction. The control moment gyroscope adopts the absolute photoelectric encoder to realize high-precision outer frame control, improves the high control accuracy over the moment of the control moment gyroscope, and meets the requirement of high pointing accuracy of the agile satellite.

Description

technical field [0001] The invention relates to the technical field of aerospace actuators, in particular to a control moment gyroscope. Background technique [0002] The control moment gyro is composed of a momentum wheel and an outer frame system. Through the rotation of the outer frame, the vector pointing control of constant angular momentum is carried out, and the angular momentum is quickly exchanged with the satellite to realize the function of maneuvering and stabilizing the satellite attitude. It has a large output torque. , small mass, low power consumption and other advantages. [0003] From the working principle of the control torque gyroscope, it can be seen that the high-precision outer frame pointing control is the key to realize the high torque accuracy of the control torque gyroscope, and the high-precision angle measurement technology is the core of this technology. At present, the commonly used control torque outer frame angle measuring sensors at home an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D17/02
CPCG05D17/02
Inventor 张广林魏新生申友涛孙丹峰包旭光
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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