A Conical Spherical Gyro Flywheel with External Rotor Magnetic Suspension

Abstract

The invention discloses an outer rotor magnetic levitation conical spherical gyro flywheel. The outer rotor magnetic levitation conical spherical gyro flywheel mainly comprises a static part and a rotor part, wherein the static part comprises an upper sealing cover, a middle gyro case, a lower sealing cover, a sealing ring, an upper gyro case, a lower gyro case, a motor component stator, an Lorentz force magnetic bearing stator, an axial displacement sensor component, a radial displacement sensor component, a mandrel, a protective bearing and a radial conical spherical magnetic bearing stator component. The rotor part comprises a gyro outer turntable component and a protective bearing cover. The outer rotor magnetic levitation conical spherical gyro flywheel disclosed by the invention adopts a spherical shell-shaped magnetic air gap structure and has the advantages of large inertia, easy control, large deflection angle, high torque accuracy and the like.

Description

technical field [0001] The invention relates to an outer rotor magnetically suspended conical spherical gyro flywheel with five degrees of freedom full active suspension control, which has the advantages of large inertia, easy control, large deflection angle, high torque accuracy, etc., realizes complete decoupling of five control channels, and can As the inertial actuator of the attitude control system of the agile mobile satellite platform. Background technique [0002] Because the momentum exchange system can provide high attitude control accuracy, it is widely used in the attitude control system of spacecraft (various satellites, manned spacecraft, space stations, space probes, etc.). The flywheel system precisely controls the attitude of the spacecraft by controlling the rotor speed and direction, changing the angular momentum and directional output torque. With the development of space technology, mechanical flywheels are becoming insufficient. The magnetic levitatio...

AI Technical Summary

Problems solved by technology

However, when the rotor is in a deflected state, one end of the magnetic gap at the magnetic pole is larger and the other end is smaller, the magnetic density at the larger magnetic gap is smaller, the electromagnetic force generated by the magnetic poles is relatively small, and the magnetic density at the smaller magnetic gap is larger , the electromagnetic force generated by the magnetic poles is too large, that is, there is a certain pull-off interference torque at the magnetic poles, which reduces the rotor suspension accuracy and the system's instantaneous output control torque accuracy

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