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Magnetic suspension fly wheel locking device

A locking device and magnetic levitation technology, which is applied in the direction of the guidance device of the aerospace vehicle, can solve the problems of polluting the working environment of the magnetic levitation flywheel system, etc., and achieve the effects of simple structure, few moving parts and high reliability.

Inactive Publication Date: 2015-05-06
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The excess generated under this kind of fretting seriously pollutes the working environment of the magnetic levitation flywheel system

Method used

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  • Magnetic suspension fly wheel locking device
  • Magnetic suspension fly wheel locking device
  • Magnetic suspension fly wheel locking device

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Experimental program
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Embodiment Construction

[0070] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are only used to explain the present invention, but not to limit the present invention.

[0071] Such as figure 1 As shown, the present invention is mainly made up of flywheel system 1, unlocking relay 3, locking electromagnet 2.

[0072] Among them: flywheel system 1 mainly includes: flywheel stator 10, flywheel stator shaft 12, flywheel rotor 11, base 13, lower rubber pad 16, key 17, stator shaft end cover 14, limit screw 15, positioning plane 18 and positioning groove 19 .

[0073] The flywheel stator 10 is fixedly mounted on the flywheel stator shaft 12, the flywheel rotor 11 is arranged outside the flywheel stator 10, and...

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Abstract

The invention relates to a locking device for a magnetic suspension fly wheel, which can be repeatedly used and comprises a fly wheel system, an unlocking relay and a locking electromagnet, wherein the unlocking relay and the locking electromagnet are positioned above a fly wheel rotor of the fly wheel system. When the fly wheel system is locked, the locking electromagnet is conducted with locking current and generates locking flux so that the locking electromagnet drives the fly wheel rotor of the flywheel system to downwards move, then, the fly wheel rotor is locked on a base through the unlocking relay; and when the fly wheel system is unlocked, the unlocking relay is conducted with unlocking current and generates unlocking flux so that the fly wheel rotor is unlocked from the base and upwards moves under the effect of the axial recovery force generated by a fly wheel stator of the fly wheel system, so the unlocking state is recovered. The locking device protects the magnetic suspension fly wheel system and has the advantages that the locking device can be repeatedly utilized, the control is easy, the reliability is high, the structure is simple, the generation of excessive materials can be prevented, and the like.

Description

technical field [0001] The invention relates to a magnetic suspension flywheel locking device, in particular to a magnetic suspension flywheel locking device which is reusable, easy to control, high in reliability and simple in structure, and can be used as a protection device for a magnetic suspension flywheel system. Background technique [0002] Magnetic levitation flywheel is a new type of actuator for spacecraft attitude control system. Compared with flywheels supported by mechanical bearings, it has obvious advantages in control accuracy, stability and service life. It is an ideal for high-precision earth observation satellite attitude control. executive body. Since the magnetic levitation flywheel adopts magnetic bearing technology, there is a gap between the stator and the rotor, and the spacecraft will generate severe vibration and shock during launch. The flywheel system has a large vibration load. In order to prevent damage to the flywheel system, an additional lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/24
Inventor 肖凯侯二永王昊泽单小强刘昆
Owner NAT UNIV OF DEFENSE TECH
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