Three-degree-of-freedom motor with double-stator structure

Abstract

The invention provides a three-degree-of-freedom motor with a double-stator structure, and relates to the field of deflection type motion motors. The motor comprises an outer stator, an inner stator and a rotor. Coil windings with variable turns are distributed on the inner stator and the outer stator, corresponding autorotation and deflection permanent magnets are distributed on the rotor, an output shaft and a fixed shaft are connected through an oil film and arranged in the center of the motor, and the output shaft further comprises a corresponding sensor capable of detecting the motion state and the motion speed of the rotor. The autorotation permanent magnets and the deflection permanent magnets are isolated through the magnetism isolating layers, and mutual interference between the permanent magnets is avoided to a great extent; the three-degree-of-freedom motor has the advantages of being simple in structure, small in size, sensitive in control, free of electromagnetic interference, convenient to control and the like, and is applied to the fields of medical detection, robot joints, factory workshop cutting, mechanical bionic eyes and the like.

Description

technical field [0001] The invention relates to the technical field of three-degree-of-freedom motors. Background technique [0002] With the continuous advancement of science and technology, especially in high-tech industries, the requirements for motor movement are getting higher and higher. Some specific occasions require the motor to not only rotate around the output shaft, but also require the motor to achieve a certain degree of deflection. Tilt movement. However, the traditional multi-degree-of-freedom motor is not only complex in structure, but also has the disadvantages of large size and low efficiency that cannot be ignored due to the existence of the transmission mechanism, which makes the whole system difficult to maintain. For fields with special requirements such as aerospace and robotic arms, there is an urgent need for better motors to complete the motion. [0003] The three-degree-of-freedom motor has broad application prospects and application potential i...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a three-degree-of-freedom motor with a double-stator structure. The deflection motion coil and the rotation motion coil are placed on the same stator, and the electromagnetic interaction affects each other, which increases the complexity of the drive, increases the cost of the motor, is difficult to control, and has low operating accuracy.

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