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Double-stator three-freedom-degree decoupling lorentz-force magnetic bearing

A technology of Lorentz force magnetism and degree of freedom, applied in bearings, shafts and bearings, mechanical equipment, etc., can solve the problems of air gap reluctance increase and air gap width increase, so as to enhance magnetic density and flux, reduce Effects of small size and reduced suspension power consumption

Active Publication Date: 2015-06-24
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Four square coils and two toroidal coils are located in the same air gap, resulting in an increase in the width of the air gap, which causes an increase in the reluctance of the air gap

Method used

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Embodiment Construction

[0023] The embodiments of the present invention will be further described in detail below.

[0024] The preferred embodiment of the double-stator three-degree-of-freedom decoupling Lorentz force-magnetic bearing of the present invention is as follows figure 1 , 2 Shown:

[0025] It is mainly composed of two parts: the rotor system and the stator system;

[0026] The rotor system mainly includes: magnetic conduction ring 1, upper axial magnetic isolation ring 2A, lower axial magnetic isolation ring 2B, upper axial magnetic steel 3A, lower axial magnetic steel 3B, axial lock nut 4, upper deflection magnetic isolation Ring 5A, lower deflection isolation ring 5B, upper deflection magnet 6A, lower deflection magnet 6B and deflection lock nut 7;

[0027] The stator system mainly includes: deflection stator skeleton 8, left deflection winding 9A, right deflection winding 9B, front deflection winding 9C, rear deflection winding 9D, deflection stator epoxy resin glue 10, axial stato...

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Abstract

The invention discloses a double-stator three-freedom-degree decoupling lorentz-force magnetic bearing. The lorentz-force magnetic bearing mainly comprises two parts, namely, a rotor system and a stator system, wherein the rotor system mainly comprises a magnetic-conductive ring, an axial magnetic-isolated ring, an axial magnetic steel, an axial locking nut, a deflection magnetic-isolated ring, deflection magnetic steel and a deflection locking nut; the stator system mainly comprises a deflection stator skeleton, a deflection winding, an axial stator skeleton, an axial winding and epoxy resin glue. The double-stator three-freedom-degree decoupling lorentz-force magnetic bearing disclosed by the invention has the advantages that axial translation and radial two-freedom-degree deflection control can be realized and the translation control and the radial deflection control are completely decoupled, so that the control performance and the control accuracy of the magnetic bearing are improved; simultaneously, since the magnetic flux and the magnetic density in air gaps are constant, outputted force and torque and the control current have the relative good linearity, so that the control accuracy of the magnetic bearing is further improved.

Description

technical field [0001] The invention relates to a non-contact magnetic suspension bearing, in particular to a double-stator three-degree-of-freedom Lorentz force magnetic bearing. Background technique [0002] The flywheel precisely controls the attitude of the spacecraft by controlling the rotor speed to change the angular momentum and output torque. With the development of space technology, mechanical flywheels are becoming insufficient. The magnetic levitation flywheel adopts magnetic levitation non-contact support technology, which eliminates the friction and wear caused by mechanical bearings, reduces vibration, has the advantages of long life, high precision, and micro vibration, and is an ideal inertial actuator for spacecraft attitude control. The magnetic bearing is one of the core components of the magnetic levitation flywheel system. Its performance determines the maximum speed of the flywheel, the vibration amplitude of the flywheel, and the bearing capacity, th...

Claims

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Application Information

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IPC IPC(8): F16C32/04
Inventor 刘强武登云樊亚洪赵航缪存孝韩天张立元
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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