A New Method to Improve the Magnetic Gear Torque

Jing Libing; Zhang Ting; Lin Ying; Cheng Jia; Xie Lihui

doi:10.16578/j.issn.1004.2539.2018.03.030

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A New Method to Improve the Magnetic Gear Torque

更新时间：2022-10-20

- A New Method to Improve the Magnetic Gear Torque
- Vol. 42, Issue 3, Pages: 144-148(2018)
- 作者机构：
  
  1. 三峡大学电气与新能源学院
  2. 水电机械设备设计与维护湖北省重点实验室(三峡大学)
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2018.03.030
  CLC：
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[1]井立兵,张廷,林颖,成佳,解立辉.一种提高磁齿轮转矩新方法[J].机械传动,2018,42(03):144-148.

Jing Libing, Zhang Ting, Lin Ying, et al. A New Method to Improve the Magnetic Gear Torque. [J]. 42(3):144-148(2018)
[1]井立兵,张廷,林颖,成佳,解立辉.一种提高磁齿轮转矩新方法[J].机械传动,2018,42(03):144-148. DOI： 10.16578/j.issn.1004.2539.2018.03.030.

Jing Libing, Zhang Ting, Lin Ying, et al. A New Method to Improve the Magnetic Gear Torque. [J]. 42(3):144-148(2018) DOI： 10.16578/j.issn.1004.2539.2018.03.030.

摘要

相比机械齿轮接触式传动,磁齿轮是一种结构新颖、具有广阔发展前景的新型传动装置,它利用磁场调制原理实现大转矩传递。在传统磁齿轮结构基础上对内、外转子永磁体进行改进,内永磁体为三角形-扇形相间,内外永磁体均为Halbach阵列。运用二维有限元法对改进型磁齿轮模型进行仿真,并计算磁齿轮电磁场和电磁转矩,同时与传统磁齿轮磁场和转矩进行比较。仿真结果表明,改进型磁齿轮能有效增强气隙磁密幅值,减小气隙谐波含量,同时输出转矩较传统磁齿轮提高。这对同心式磁力齿轮转矩密度的提高研究及应用具有重要意义。

Abstract

Comparing with the mechanical gear contact transmission,magnetic gear is a new transmission device with a novel structure and a broad development prospect. The large torque transmission is achieved by using the magnetic field modulation principle. On the basis of the traditional magnetic gear structure,the inner and outer rotor permanent magnets are improved,which the inner permanent magnets are triangular-fan-shaped phase and the inner and outer permanent magnets are Halbach arrays. The two dimensional（ 2 D） finite element（ FE） method is used to simulate the modified magnetic gear model,and the electromagnetic field and electromagnetic torque of the magnetic gear are calculated. At the same time,the magnetic field and torque are compared with the conventional magnetic gear. The simulation results show that the output torque of the improved magnetic gear is greatly than the traditional magnetic gear,which can effectively enhance the air gap magnetic density and reduce the air gap harmonic content. It is a great significance to study and apply the torque density of concentric magnetic gear.

关键词

磁齿轮磁场调制气隙磁密电磁转矩

Keywords

Magnetic gearMagnetic field modulationAir-gap flux densityElectromagnetic torque

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