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兵工学报 ›› 2021, Vol. 42 ›› Issue (10): 2223-2232.doi: 10.3969/j.issn.1000-1093.2021.10.018

• 论文 • 上一篇    下一篇

同轴磁齿轮极数配合规律

何明杰1, 彭俊1, 罗英露1, 李伟业2   

  1. (1.中车株洲电力机车研究所有限公司, 湖南 株洲 412001; 2.襄阳中车电机技术有限公司, 湖北 襄阳 441047)
  • 发布日期:2021-11-03
  • 作者简介:何明杰(1991—), 男, 高级工程师, 博士。E-mail: hemj@csrzic.com

Combination Principles of Pole-pair Numbers for Coaxial Magnetic Gear

HE Mingjie1, PENG Jun1, LUO Yinglu1, LI Weiye2   

  1. (1.CRRC Zhuzhou Institute Co.,Ltd.,Zhuzhou 412001,Hunan,China;2.Xiangyang CRRC Electric Motor Technology Co.,Ltd.,Xiangyang 441047,Hubei,China )
  • Online:2021-11-03

摘要: 为解决同轴磁齿轮的内转子永磁体极对数、外转子永磁体极对数和调制环齿数选取问题,研究其极数配合规律。介绍同轴磁齿轮的基本结构,推导其气隙磁密解析式;基于磁齿轮气隙磁密谐波分析,对磁齿轮内转子永磁体极对数、外转子永磁体极对数和调制环齿数的相互配合关系进行研究,给出极对数配合的选取原则;详细对比分析4种不同极对数配合磁齿轮的转矩特性;设计一台内转子永磁体极对数为5、外转子永磁体极对数为19、调制齿个数为24的同轴磁齿轮,并进行样机制造与试验。结果表明:当磁齿轮内转子永磁体极对数与外转子永磁体极对数之和等于调制环齿数时,磁齿轮可获得较高的传动比和较强的转矩输出能力。

关键词: 同轴磁齿轮, 极数配合, 气隙磁密, 传动比

Abstract: The combination principles of pole-pair numbers of inner rotor,outer rotor and modulation teeth for the coaxial magnetic gear are studied. The topology of coaxial magnetic gear is introduced and the air-gap flux densities are investigated theoretically. The possible combinations of the pole-pair numbers of inner rotor,outer rotor and modulation tooth are studied based on the analysis of air-gap flux density harmonics. Four magnetic gears with different combinations of pole-pair number are designed and comprehensively compared based on finite element algorithm.A magnetic gear with 5 inner-rotor pole pairs,19 outer-rotor pole pairs and 24 modulated teeth was manufactured and tested.Both the theoretical analysis and test results demonstrate that the magnet gear could enjoy strong torque transmission capability and high gear ratio when the number of modulated teeth is the sum of pole pair numbers of inner and outer rotors.

Key words: coaxialmagneticgear, combinationofthepole-pairnumbers, air-gapfluxdensity, gearratio

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