Two-stage magnetic gear transmission motor for robot joints

A technology of robot joints and transmission motors, applied in the direction of electromechanical devices, magnetic circuit rotating parts, magnetic circuits, etc., can solve the problem of small transmission and achieve the effect of increasing torque

CN112713737APending Publication Date: 2021-04-27JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-04-27

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Abstract

The invention relates to a two-stage magnetic gear transmission motor for robot joints. The motor is characterized in that: the motor comprises a magnetic isolation fixing ring, a vernier motor part arranged at the periphery of the magnetic isolation fixing ring, a magnetic gear part arranged at the inner periphery of the magnetic isolation fixing ring, a stator winding arranged at the periphery of the stator winding, a vernier motor rotor arranged at the periphery of the stator winding, and a vernier motor stator core is arranged on the inner periphery of the stator winding. The gear transmission motor has the following beneficial effects that: 1, the two-stage magnetic gear transmission motor for the robot joints expands the speed reduction transmission characteristic, the intrinsic flexibility and the inherent overload protection characteristic of a magnetic gear to the field of human-machine co-fusion, and lays a foundation for design and application of a novel robot integrated joint; and 2, a magnetic gear and a vernier motor are compounded into a whole with a compact structure by the two-stage magnetic gear transmission motor for the robot joints, the gear transmission motor has the characteristic of large transmission ratio, the aims of reducing speed and improving torque are fulfilled under the condition of not using a mechanical gear reducer, and a direct driving effect is achieved.
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Description

technical field

[0001] The invention belongs to the technical field of human-machine fusion robots, and relates to a two-stage magnetic gear transmission motor for robot joints. Background technique

[0002] At present, the robot joints are driven by motors and reducers through shaft connections. On the one hand, the structure, volume and quality of the joint are restricted by the non-functional parts, so the volume is large and the mass is heavy; on the other hand, the reducer is made of traditional mechanical gears, and the contact meshing of mechanical gears inevitably produces friction and heat , vibration and noise, etc., require regular lubrication and maintenance.

[0003] Compared with mechanical gears, magnetic gears have obvious advantages: (1) Magnetic gears have a transmission ratio, which can replace mechanical gears to achieve low-speed, high-torque transmission; (2) The input and output shafts of magnetic gears are isolated from each other, and through magnet...

Examples

Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments of some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] It should be noted that the terms "f...