Abstract：In order to improve the torque transmission ability of magnetic gear, the magnetic field modulation mechanisms and structure requirement were investigated to propose three kinds of structure of ferromagnetic pole pieces. To improve the torque transmission capacity of stacked structure of ferromagnetic pole pieces, the structural parameters of ferromagnetic pole pieces were analyzed numerically by the finite element method. The results show that the output torque of magnetic gear increases firstly and then decreases with the increase of the relative teeth width of the ferromagnetic pole pieces. The output torque is large when the relative teeth width is between 0.4 and 0.5, and the torque change is relatively stable. The output torque increases firstly and then decreases with the increase of tooth height of ferromagnetic pole pieces. The maximum of output torque is obtained with the tooth height of 3 mm, and the output torque increases by 18% more than that of simulation result of experimental. The output torque decreases with the increasing of connecting bridge height, and the torque increases by 62% more than that of simulation result of experiment without connecting bridge.
杨超君, 李志宝, 周曰华, 胡友, 杨巧绒. 磁力齿轮中调磁极片结构参数的数值模拟分析[J]. 江苏大学学报（自然科学版）, 2014, 35(1): 80-86.
YANG Chao-Jun, LI Zhi-Bao, ZHOU Yue-Hua, HU You, YANG Qiao-Rong. Numerical simulation and analysis of structural parameters of ferromagnetic pole pieces in magnetic gears[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2014, 35(1): 80-86.
2014, Vol. 35 
