Efficient magnetic circuit optimization design mechanism of Hall thruster driven by stepping motors

The invention discloses an efficient magnetic circuit optimization design mechanism of a Hall thruster driven by stepping motors. Inner positive poles and outer positive poles are mounted inside and on the outer side of a ceramic cavity correspondingly and can move relative to the ceramic cavity. Magnetic steel is fixed on pole boots, and the pole boots are mounted on the outer side of the outer positive poles and can move relative to the outer positive poles. The inner positive poles, the outer positive poles and the pole boots adopt three sets of adjustment mechanisms to adjust relative positions. Each set of adjustment mechanism comprises a connecting rod, a driving face plate, a stepping motor and a guide rail. The three driving face plates are mutually parallel; the three sets of connecting rods and the three guide rails are mutually parallel; the three driving face plates are perpendicular to the guide rails and the connecting rods; and the trend of the guide rails is parallel to the axis of the Hall th