一种新型轴向磁场调制式磁性齿轮  

A new axial-field flux-modulated magnetic gear

作　　者：诸德宏[1] 何承平 欧阳中萃 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212000

出　　处：《信息技术》2017年第12期153-157,共5页Information Technology

摘　　要：设计出了一种新型的轴向磁场调制式磁性齿轮(AF-FMMG)。该种磁齿轮可以通过两固定调制环的调制功能来实现内转子和外转子的旋转速度的不同。由于轴向磁通,该AF-FMMG具有结构简单等优点,理论上两转子之间的间隙长度是无限的。所以,提出的这种磁性齿轮非常适合用于输入和输出轴之间需要隔离的应用中,如在食品、农业和航空航天工业用泵。首先,介绍AF-FMMG的结构和工作原理。然后,通过使用有限元分析对其进行了优化,以获取最大的转矩输出。最后,对AF-FMMG的输出性能进行计算,并得到其转矩密度为77kNm/m。This paper proposes an axial-field flux-modulated magnetic gear（AF-FMMG）,in which the rotations with different speeds of inner rotor and outer rotor can be achieved based on the modulation function of two stationary modulation rings.Due to the axial flux configuration,the proposed AF-FMMG offers the advantages of simpler mechanical structure and theoretically limitless gap length between two rotors.So,the proposed MG is very suitable for applications which require a hermetic isolation between input and output shafts,such as pumps used in food,agriculture,and aerospace industries.Firstly,the configuration and operation principle of the AF-FMMG are described.Then by using the finite element analysis,several dimensions are optimized to obtain the maximum torque output.Finally,the output performances of proposed AF-FMMG are calculated and a torque density in excess of 77 kNm/m can be achieved.

关 键 词：有限元分析 永磁体 磁力齿轮 

分 类 号：TH132.41[机械工程—机械制造及自动化]