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A magnetic levitation spherical electric drive actuator

An actuator and electric drive technology, applied in the direction of electromechanical devices, magnetic attraction or thrust holding devices, electrical components, etc., can solve problems that are not conducive to the miniaturization of multi-degree-of-freedom motion actuators, increase weight, volume and power consumption , large space occupation, etc., to achieve the effect of servo control and low-cost operation, simple structure, and small space occupation

Active Publication Date: 2022-03-01
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional space multi-degree-of-freedom motion actuators are generally composed of multiple single-degree-of-freedom motion motors and a set of mechanical transmission devices. The structure is complex, the power density is low, and the space occupation is large.
Compared with a single motor, it greatly increases the weight, volume and power consumption of the system, which is not conducive to the miniaturization of multi-degree-of-freedom motion actuators and their applications in high-power-density applications

Method used

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  • A magnetic levitation spherical electric drive actuator
  • A magnetic levitation spherical electric drive actuator
  • A magnetic levitation spherical electric drive actuator

Examples

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Embodiment 1

[0024] This embodiment is used to provide a magnetic levitation spherical electric drive actuator, such as figure 1 As shown, the device includes three stator pairs, a spherical rotor 9 and a controller;

[0025] Each stator pair includes two stators 1 , and the two stators 1 are respectively fixedly arranged on both sides of the spherical rotor 9 , and there is a gap between each stator 1 and the spherical rotor 9 . Preferably, the distances from the centroids of the two stators 1 in each stator pair to the spherical center of the spherical rotor 9 are equal, and the opposing surfaces of the stators 1 and the spherical rotor 9 are spherical surfaces.

[0026] The line connecting the centroids of the two stators 1 in each stator pair is the virtual axis of the stator pair, the virtual axis of the stator pair passes through the spherical center of the spherical rotor 9, and the virtual axes of the three stator pairs are perpendicular to each other. That is, if the spherical ce...

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Abstract

The invention relates to a magnetic levitation spherical electric drive actuator, which comprises three stator pairs, a spherical rotor and a controller. Each stator pair includes two stators, and the two stators are respectively fixed on both sides of the spherical rotor. The line connecting the centroids of the two stators is the virtual axis of the stator pair, and the virtual axis of the stator pair passes through the spherical center of the spherical rotor. , and the virtual axes of the three stator pairs are perpendicular to each other. The spherical rotor uses magnetic force to levitate in the space formed by three stator pairs. Each stator includes stator windings. By controlling the electrification process of the stator windings, the controller drives the spherical rotor to levitate along the virtual axis of the stator pair, and drives the spherical rotor to rotate around the virtual axis of the stator pair to realize the suspension of the spherical rotor. The motion and rotation motion have simple structure and small space occupation, which can reduce the weight, volume, power consumption and cost of the multi-degree-of-freedom motion actuator, and are beneficial to the miniaturization and low-cost operation of bionic humans and spacecraft.

Description

technical field [0001] The invention relates to the technical field of multi-degree-of-freedom motion actuators, in particular to a magnetic levitation spherical electric drive actuator. Background technique [0002] Traditional space multi-degree-of-freedom motion actuators are generally composed of multiple single-degree-of-freedom motion motors and a set of mechanical transmission devices, with complex structures, low power density, and large space occupation. Compared with a single motor, it greatly increases the weight, volume and power consumption of the system, which is not conducive to the miniaturization of multi-degree-of-freedom motion actuators and their applications in high-power-density applications. [0003] Based on this, there is an urgent need for a new type of motion actuator with simple structure, small space occupation, and high power density. Contents of the invention [0004] The purpose of the present invention is to provide a magnetic levitation s...

Claims

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Application Information

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IPC IPC(8): H02N15/00H02K16/00
CPCH02N15/00H02K16/04
Inventor 赵静何威刘向东
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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