Three-degree-of-freedom implicit Lorentz force magnetic bearing with superimposing effect

Abstract

The invention discloses a three-degree-of-freedom implicit Lorentz force magnetic bearing with a superimposing effect. The three-degree-of-freedom implicit Lorentz force magnetic bearing with the superimposing effect is composed of a rotor system and a stator system. The rotor system mainly comprises an outer mounting sleeve, an outer magnetism conductive ring, an outer magnetism insulation ring,outer radial magnetizing steel, outer axial magnetizing steel, an outer paramagnetic ring, an outer magnetic steel lock nut, an outer assembly lock nut, a rotary plate, an inner mounting sleeve, an inner magnetism conductive ring, an inner magnetism insulation ring, inner radial magnetizing steel, inner axial magnetizing steel, an inner paramagnetic ring, an inner protective sleeve, an inner magnetic steel lock nut and an inner assembly lock nut. The stator system mainly comprises a stator framework, a winding, epoxy resin glue and an aluminum substrate. According to the three-degree-of-freedom implicit Lorentz force magnetic bearing with the superimposing effect, six circles of axial magnetizing steel are additionally arranged on the basis of an existing three-degree-of-freedom implicit Lorentz force magnetic bearing, so that inner implicit magnetic circuits and implicit magnetic circuits are superimposed at air gaps of the magnetic bearing, and the flux density of the air gaps and the rigidity of a suspension bearing are improved. Meanwhile, the inner implicit magnetic circuits and the implicit magnetic circuits at different positions in the axial direction are all superimposed at the air gaps, so that the flux density of the air gaps and the rigidity of the suspension bearing are further improved.

Description

technical field [0001] The invention relates to a non-contact magnetic suspension bearing, in particular to a three-degree-of-freedom implicit Lorentz force magnetic bearing with a superposition effect. Background technique [0002] The maglev gyro flywheel is a new generation of inertial mechanism that integrates attitude control and sensitivity with more development potential. It also has high-precision attitude control functions and radial two-degree-of-freedom attitude sensitivity functions. Ideal way. The magnetic bearing is one of the core components of the magnetic levitation control sensitive gyroscope, which has an important influence on the attitude control accuracy and sensitivity accuracy of the gyroscope. [0003] Compared with the magnetic resistance magnetic bearing, the electromagnetic levitation force of the Lorentz force magnetic bearing is proportional to the current, which has the advantages of good linearity and high control precision, and is more suita...

AI Technical Summary

Problems solved by technology

However, the magnetic steel is far away from the magnetic pole surface, and the air gap magnetic density is low, which reduces the axial translational suspension stiffness and deflection suspension stiffness of the magnetic bearing.

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