Linear rotation permanent magnet motor

Abstract

The invention discloses a linear rotation permanent magnet motor. The linear rotation permanent magnet motor comprises an inner stator, an outer stator, a rotor located between the inner stator and the outer stator, a left end cover (1), a machine shell (2), an outer stator winding (3), an outer stator iron core (4) with a groove, an inner stator winding (5), an inner stator permanent magnet (6), an inner stator iron core (7) with a groove, a rotor (8), a right end cover (9), an inner stator support (10), a rotation shaft (11), an outer stator permanent magnet (12) and a bearing (13), wherein the left end cover (1), the machine shell (2) and the right end cover (9) form a cavity, the inner stator support (10) is arranged in the cavity, and one end of the inner stator support (10) is connected with the right end cover (9). According to the linear rotation permanent magnet motor, the structure of the linear rotation two-freedom-degree motor is simplified, the size and the weight of the motor are reduced, magnetic coupling of linear and rotary motion units is eliminated, and the control difficulty of linear and rotary motions is lowered.

Description

technical field [0001] The invention relates to a linear rotary permanent magnet motor, which is suitable for linear, rotary and helical drive occasions, and belongs to the technical field of motors. Background technique [0002] As far as the current motor motion control is concerned, most of them are single-degree-of-freedom motors, which can only perform linear motion or rotary motion. With the increase in the complexity of industrial drive systems and the improvement of drive precision requirements, one-dimensional motion single-degree-of-freedom motors cannot meet the drive requirements, and a large number of multi-dimensional motion motors and their drive mechanisms are required. Compared with single-degree-of-freedom motors, multi-degree-of-freedom motors not only have the characteristics of multi-dimensional motion, but also have higher mechanical integration, higher material utilization and flexible control characteristics. Linear rotary motion motor is a kind of m...

AI Technical Summary

Problems solved by technology

[0005] 3) The cross-coupling of the rotating magnetic field and the traveling wave magnetic field is not conducive to the optimal design of the motor;

[0006] 4) The integrated structure often adopts concentrated winding, and the number of winding phases is large, the control is difficult and the control strategy is complicated;

[0007] 5) The structure of the stator and the mover is special, the manufacturing process of the motor is complicated, and the processing is difficult;

[0008] 6) The control theory and technology of the linear rotation two-degree-of-freedom motor need to be improved

Images