High-rigidity spherical Lorentz deflection bearing with auxiliary air gaps

Abstract

The invention discloses a high-rigidity spherical Lorentz deflection bearing with auxiliary air gaps. The high-rigidity spherical Lorentz deflection bearing comprises a rotor system and a stator system, wherein the rotor system comprises an installation sleeve, auxiliary magnetic steel, a magnetic conductive sleeve, a magnetic isolation ring, trapezoidal spherical magnetic steel, a spherical paramagnetic ring, a trapezoidal spherical magnetic steel gasket, an installation sleeve lock nut, an assembly lock nut and a rotor rotary disc; and the stator system comprises a stator framework, a winding and epoxy resin glue, and the auxiliary air gaps and air gaps exist in the stator / rotor system. According to the high-rigidity spherical Lorentz deflection bearing, the double-ring auxiliary magnetic steel and four-ring main magnetic steel are connected in series in a magnetic circuit loop, so that the magnetomotive force of the magnetic circuit loop is improved. Meanwhile, two auxiliary air gaps are additionally formed beside the double-ring auxiliary magnetic steel, so that most of the magnetic flux of the main magnetic circuit penetrates through the auxiliary air gaps to form a loop, themagnetic resistance of the loop of the magnetic circuit is reduced, the utilization rate of the magnetomotive force of the four-ring main magnetic steel is increased, and the air gap flux density andthe suspension rigidity are increased.

Description

technical field [0001] The invention relates to a non-contact magnetic suspension bearing with an auxiliary air gap, in particular to a high-rigidity spherical Lorentz deflection bearing capable of high dynamic control for a stable suspension platform. Background technique [0002] The inertial stabilization platform uses inertial measurement devices to detect the attitude information of the platform mover in real time, isolates various disturbances such as attitude changes of carriers (aircraft, ships, spacecraft, etc.), external impacts, and precisely controls the attitude of the load. According to different support methods, inertial stabilized platforms can be divided into four categories: mechanical, air-floating, liquid-floating, and magnetic levitation. Due to the advantages of simple structure and mature technology, mechanically stabilized platforms are widely used in remote sensing observation fields such as satellites, aircraft, and ships. However, the inevitable fr...

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Problems solved by technology

However, the series configuration of the magnets not only increases the magnetomotive force of the magnetic circuit, but also increases the reluctance of the entire magnetic circuit circuit, reducing the utilization rate of the magnetomotive force of the original two-sided four-turn magnet and the auxiliary magnet. , making the effect of bearing stiffness improvement unsatisfactory

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