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Abstract

In this study, a magnetic planetary gear drive is proposed and its operating principle is introduced. The equations of the geometrics and kinematics for the drive are given. The equations of the magnetic induction intensity for the magnetic gear teeth are deduced. The equations of the torques between the planetary gears and sun gear or crown gear are developed. The available parameters of the magnetic planetary drive are presented and the magnetic flux density distributions of the magnetic gear teeth are investigated. The torques between the planetary gears and sun gear or crown gear are analysed. When the relative rotating angle between the gears is increased, the magnetic torque grows, gets to a maximum value, and then drops. The maximum torque represents extreme load-carrying ability of the drive system. The pole pair number, the tooth thickness and the tooth width of the magnetic gears, and the speed ratio of the drive have obvious influence on the output torques. To obtain a large magnetic torque, a large tooth width of the gear, a proper pole pair number, a proper radial thickness of the tooth, a large planetary gear number, and a large speed ratio should be chosen.

Keywords

planetary drive magnetic gear torque magnetic flux density

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References

Tsurumoto

Kikuchi

, ‘New magnetic gear using permanent magnet’ IEEE Trans. Magn 23 5 (1987): 3622–3624.

Ikuta

Makita

Arimoto

, ‘Non-contact magnetic gear for micro transmission mechanism. In Proceedings of the IEEE Micro Electro Mechanical Systems, Nara, Japan, 30 January - 2 February 1991, pp. 125–130.

Tsurumoto

, ‘Generating mechanism of magnetic force in meshing area of magnetic gear using permanent magnet’ IEEE Trans. J. Magn. 6 6 (1991): 531–536.

Furlani

E. P.

, ‘Analytical analysis of magnetically coupled multipole cylinders’ J. Phys. D, Appl. Phys. 33 1 (2000): 28–33.

Yao

Y. D.

Huang

D. R.

Lee

C. M.

, ‘Magnetic coupling studies between radial magnetic gears’ IEEE Trans. Magn. 33 5 (1997): 4236–4238.

Nagrial

M. H.

Rizk

, ‘Design and performance of a magnetic gear. In Proceedings of the IEEE International Magnetics Conference-2000 IEEE INTERMAG, Toronto, Ontorio, 9–13 April 2000, pp. 644–648.

Zhao

Yang

Huang

, ‘Torque characteristic analysis and optimal design of permanent-magnetic gears by using finite element method. In Proceedings of the International Conference on Mechanical transmissions, Chongqing, China, 5–9 April 2001, pp. 318–321.

Zhao

Yang

Tian

, ‘Study on calculation method of the torque of permanent magnetic gears’ Chin. J. Mech. Eng. 37 11 (2001): 69–70.

Zhao

Yang

, ‘Three-dimensional analysis and calculation of the torque of permanent magnetic gears’ Trans. Chin. Soc. Agric. Mach. 32 6 (2001): 95–98.

10.

Jorgensen

F. T.

Andersen

T. O.

Rasmussen

P. O.

, ‘Two dimensional model of a permanent magnet spur gear - a mathematical method used to model a parallel magnetised magnetic spur gear. In Proceedings of the 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting, Hong Kong, China, 2–6 October 2005, pp. 261–265.

11.

Tian

Deng

Zhao

, ‘Dynamic simulation study on the permanent thulium magnetism gear driving system’ China Mech. Eng. 17 22 (2006): 2315–2318.

12.

Kikuchi

Tsurumoto

, ‘Trial construction of a new magnetic skew gear using permanent magnet’ IEEE Trans. Magn. 30 6 (1994): 4767–4769.

13.

Kikuchi

Tsurumoto

, ‘Design and characteristics of a new magnetic worm gear using permanent magnet’ IEEE Trans. Magn. 29 6 (1993): 2923–2925.

14.

Joergensen

F. T.

Andersen

T. O.

Rasmussen

P. O.

, ‘The cycloid permanent magnetic gear. In Proceedings of the 41st IAS Annual Meeting (IEEE Industry Applications Society), 2006 IEEE Industry Applications Conference, Tampa, FL, USA, 8–12 October 2006, pp. 373–378.

15.

Jorgensen

F. T.

Andersen

T. O.

Rasmussen

P. O.

, ‘The cycloid permanent magnetic gear’ IEEE Trans. Ind. Appl. 44 6 (2008): 1659–1665.

16.

K. H.

Y. J.

Hong

J. P.

, ‘Design and characteristic analysis of non-contact magnet gear for conveyor by using permanent magnet. In Proceedings of the 37th IAS Annual Meeting and World Conference on Industrial applications of electrical energy, Pittsburgh, PA, USA, 13–18 October 2002, pp. 1922–1927.

17.

Jian

L. N.

Chau

K. T.

Zhang

, ‘A magnetic-geared outer-rotor permanent-magnet brushless machine for wind power generation. In Proceedings of the 2007 IEEE Industry Applications Conference 42nd Annual Meeting, New Orleans, LA, USA, 23–27 September 2007, pp. 573–580.

Magnetic planetary gear drive

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