MAGNETIC LEVITATION MOMENTUM SPHERE

摘要

A magnetic levitation momentum sphere, used for spacecraft attitude adjustment. The magnetic levitation momentum sphere comprises a spherical-housing-shaped rotor (4) and multiple stators (1). There are three groups of stators (1). Each group of stators (1) comprises two stators (1) using the sphere center of the rotor (4) as a symcenter, and axes of the three groups of stators (1) are mutually orthogonal. Each stator (1) comprises a stator core (2) and a coil array (3). An inner surface of each stator core (2) fitted to the rotor (4) is a spherical surface, and an air gap is reserved between the spherical surface and the outer surface of the rotor (4). Through grooves (6) are radially formed in the stator cores (2), and are evenly distributed on the circumferences of the stator cores (2). The coil arrays (3) are disc-type motor stator windings. Two effective sides (8) of each coil (7) in each coil array (3) are placed in two through grooves (6) of the corresponding stator core (2) respectively. The magnetic levitation momentum sphere has low cost; suspension and rotation driving are integrated; the magnetic levitation momentum sphere has a simple and compact structure, a small size and a low mass, and relates to inherent stable levitation; and the levitation control is simple.