Stator and rotating linear two-degree-of-freedom permanent magnet motor with modular structure

Abstract

The invention provides a stator and a rotating linear two-degree-of-freedom permanent magnet motor with a modular structure. The rotating linear two-degree-of-freedom permanent magnet motor with the modular structure comprises a stator and a rotor, and the stator comprises a stator core, a rotating motion winding and a linear motion winding; the stator iron core is formed by a plurality of same modular iron core units in a three-phase mode on the circumference. Stator grooves are formed in the axial direction and the circumferential direction of an inner surface of the stator iron core at thesame time, so that stator teeth are distributed in an array mode and evenly distributed on all the modular iron core units. The rotating motion winding is wound on stator teeth which are axially arranged along an inner surface of the stator core along the linear motion direction to form a phase group centralized winding for driving rotary motion; and the linear motion winding is wound on the stator teeth arranged along the circumferential direction of the inner surface of the stator iron core along the circumferential direction to form a phase group centralized winding for driving linear motion. The structure is simple, the manufacturing is easy, and the material utilization rate is increased.

Description

technical field [0001] The invention belongs to the field of motor design and manufacture, and in particular relates to a stator and a rotary linear two-degree-of-freedom permanent magnet motor with a modular structure. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] With the further development of materials and equipment manufacturing technology, the industry has more and more urgent requirements for multi-dimensional drives. Two-degree-of-freedom drive motors have a very wide range of application prospects, such as robot joints, multi-dimensional machining platforms, and ship electric propulsion systems. , artillery turntable, offshore wave power generation, electric gyroscope, screw pump, automated office platform, etc. [0004] One of the traditional two-degree-of-freedom drive implementation methods is to combine multiple single-degr...

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Problems solved by technology

[0005] The inventors found that the rotary linear two-degree-of-freedom permanent magnet motor is still in the laboratory research and development stage at this stage, and there are the following problems: 1) The coaxial rotary linear two-degree-of-freedom motor adopts an axial series structure, and the motor is slender as a whole. The stroke of linear motion is limited; 2) The off-axis rotary linear two-degree-of-freedom motor still uses an auxiliary transmission device, the integration level is not high, the structure of the auxiliary transmission device is complex, and the reliability of the system is low; 3) The spiral rotary linear two-degree-of-freedom motor Because the high-degree motor can only perform helical motion in the axial direction and the pitch is fixed, its use is limited; 4) The magnetically coupled rotary linear two-degree-of-freedom motor usually adopts a reluctance motor structure, which has low torque / thrust density, and in some structures There is a cross-coupling between the rotating magnetic field and the traveling wave magnetic field, which is not conducive to independent control of single-degree-of-freedom motion

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