Dual radial directions magnetic field reaction type straight-line rotating stepper motor

Abstract

The invention relates to a biradial magnetic field reactive linear rotary stepping motor. The two sections of magnetic poles of a stator of the stepping motor generate an axial magnetic field and a radial magnetic field which are intersected. A magnetic path of a rotor has two space radial magnetic flux paths so that the rotor structure is greatly simplified and the lamination structure is used, thereby increasing the magnetic conductivity of the rotor and reducing the magnetic reluctance of the magnetic path and the volume of the motor. The stepping motor not only can move linearly but also rotate and do spiral motion. Compared with the reluctance linear stepper motor, the biradial magnetic field reactive linear rotary stepping motor has a simple structure and simple processing technique due to the absence of a permanent magnet, simply needs a unipolar drive power supply in the control aspect, and has a simple control circuit, low total cost and high reliability.

Description

technical field [0001] The invention relates to a stepping motor in the field of motors, in particular to a stepping motor with rotary motion, linear motion and helical motion with mixed motion. Background technique [0002] Traditional motors mainly use rotary motion or linear motion. When the system requires both rotation and linear motion, it must be realized by mechanical means, resulting in bulky equipment and increased weight. At present, as far as the principle of motor force generation is concerned, there are three forms: one is the principle of electromagnetic action, most of the motors in operation today are this type of motor, and it is difficult to accurately control the linear rotary motor made by this principle; the other is the principle of electromagnetic action. It is the principle of reluctance. Most of the precise control motors in operation today are this type of motor, but this type of motor basically only has linear motion or only rotational motion; the...

AI Technical Summary

Problems solved by technology

[0003] The present invention is aimed at the lack of stepping motors capable of both rotating and rectilinear motion, high efficiency and high power in the existing domestic market, and proposes a dual-radial magnetic field responsive linear rotary stepper motor, which can not only move rectilinearly, but also It can also rotate and spirally move. When the motor is moving in a straight line, it can accurately move linearly step by step, and it can also move linearly at different speeds continuously; when the motor rotates, it can rotate step by step accurately. Can also rotate continuously at different speeds

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