利用端部漏磁的磁场调制式永磁齿轮  

Magnetic Field Modulated Permanent Magnetic Gear of Taking Advantage of End Leakage

作　　者：谢颖[1] 吕森[1] 

机构地区：[1]哈尔滨理工大学,哈尔滨150080

出　　处：《微特电机》2015年第5期33-36,共4页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(51107022);黑龙江省普通高等学校新世纪优秀人才培养计划(1252-NCET-015);黑龙江省博士后科研启动金资助项目(LBH-Q12061);黑龙江省自然科学基金项目(E201443);哈尔滨市科技创新人才研究专项资金项目(RC2014QN007005)

摘　　要：端部漏磁广泛存在与磁场调制式永磁齿轮,在无法消除端部漏磁的情况下,尝试对其进行利用,通过增加端部调磁环可以很好地利用端部漏磁。首先用有限元法对传统结构进行了研究并证实端部漏磁确实存在,其次用"假设-验证"的方法设计了端部调磁环,并对其进行了优化,优化过程同样采用有限元法。与传统结构比较后发现,增加了端部调磁环的新型磁齿轮可以在不增加永磁体用量的条件下有效地提高磁齿轮能够传递的最大转矩,最终方案转矩传递平稳可靠,传动比稳定。End leakage is widespread in magnetic field modulated permanent magnetic gear （PMG）. This paper tries to take advantage of end leakage, since it is unavoidable. End leakage can be well used by adding end modulating ring. Firstly, traditional PMG was studied and the existence of end leakage was verified by finite element method. Then, end modulating ring was designed using method of hypothesis-verification, and it was optimized also by finite element method. After comparing with traditional PMG, it can be seen that the new structure of PMG with end modulating ring can improve the maximum torque effectively without the increase of permanent magnets＇ volume. The torque is smooth and steady, and also the gear ratio is steady.

关 键 词：永磁齿轮 漏磁 新结构 优化 有限元法 

分 类 号：TM351[电气工程—电机]