Abstract:In order to suppress the speed fluctuation of the passive magnet, increase the stability of the transmission speed and reduce the possibility of out of sync, it is proposed to add a damping system on the magnet of permanent magnet gear transmission mechanism. As an application example of permanent magnet gear transmission mechanism, the eddy current distribution and damping torque of the non-contact permanent magnet driving device for the power supply of artificial heart blood pump are analyzed and calculated using finite element method, and the damping characteristics with the damping cylinder and without the damping cylinder are compared. Research results show that the damping cylinder can produce larger damping torque in the speed fluctuations of the passive magnet and greatly increase the stability of the transmission speed. Through this research, the working mechanism and operational characteristics of the damping system of permanent magnet gear transmission mechanism are in-depth understood, and the theoretical foundation for the optimization design of the damping system is laid.
夏东. 永磁齿轮的阻尼系统及其在人工心脏无接触驱动装置中的应用[J]. 电工技术学报, 2013, 28(2): 91-96.
Xia Dong. Permanent Magnet Gear Damping System and Its Application in the Non-Contact Driving Device for Artificial Heart. Transactions of China Electrotechnical Society, 2013, 28(2): 91-96.
[1] Tsurumoto K Kikuchi S. A new magnetic gear using permanent magnet[J]. IEEE Transactions on Magnet, 1987, 23(5): 3622-3624. [2] Koji Ikuta, et al. Non-contact magnetic gear for micro transmission mechanism[C]. Proceedings of the 1991 IEEE Micro Electro Mechanical Systems - MEMS'91, Nara: Dept of Mechanical System Engineering, Kyushu Institute of Technology, 1991: 125-130. [3] Kikuchi S Tsurumoto K. Trail construction of a new magnetic skew gear using permanent magnet[J]. IEEE Transactions on Magnet. 1994, 30(6): 4767-4769. [4] Yao Y D, et al. The radial magnetic coupling studies of perpendicular magnetic gears[J]. IEEE Transactions on Magnet, 1995, 32(5): 5061-5063. [5] Yao Y D, et al. Magnetic coupling studies between radial magnetic gears[J]. IEEE Transactions on Magnet, 1997, 33(5): 4236-4238. [6] Ha, Kyung-Ho, et al. Design and characteristic analysis of Non-contact magnet gear for conveyor by using permanent magnet[C]. Conf. Rec. IAS Annu Meet, 2002(3): 1922-1927. [7] 张建涛, 夏东. 永磁齿轮传动特性研究[J]. 机械设计与制造, 2005(5): 69-70. Zhang Jiantao, Xia Dong. Research on the transmission characteristics of a magnetic gear[J]. Machinery Design and Manufacture, 2005(5): 69-70. [8] 夏东. 永磁齿轮的阻尼系统: 中国 10090285. 1[P]. 2009. [9] 夏东. 人工心脏的永磁磁体无接触式动力传递系统的研究[C]. 电工理论与新技术年会论文集, 2009: 468-471. [10] Xia Dong, Xia Lu. Non-contact driving device of artificial heart and its magnetic field analysis[J]. IEEE Transactions on Applied Superconducting, 2010, 20(3): 732-735. [11] Xia Dong, Xia Lu. The electromagnetic torque and eddy current loss analysis of the non-contact driving device of artificial heart[C]. Proceedings of the International Conference of Electrical Machines and Systems, 2010: 1931-1935.