Research on Characteristics of Permanent Magnet Eddy-current Coupling Drive

doi:10.3901/JME.2016.08.023

Abstract

Abstract: The technology of permanent magnet eddy-current coupling drive can achieve softer transmission characteristics by using non-contact transmission mode. There is a very good effect in some special occasions. Permanent magnet eddy-current coupling has the advantages of energy-saving, overload protection, allowing the larger misalignment, simple structure, long service life and so on by using technology of permanent magnet eddy-current coupling drive. The permanent magnet eddy-current coupling of application in the oil field is designed for researching on the characteristics of permanent magnet eddy-current coupling drive. Mathematical model of permanent magnet eddy-current coupling is established by analyzing the theory of the coupling drive. Transmission characteristics of the coupler is simulated by establishing three dimensional finite element model using simulation software Ansoft. The relationship among torque, space and rotation difference is got. Coupling torque increases with the decrease of the gap or the increase of rotation difference. Experimental study on the prototype is done by establishing the coupler drive experimental platform. It verifies that finite element simulation is a research method of transmission characteristics of coupler. And the reasonable work area of coupler can be determined from the experimental result’s curve. Within the working area, the coupler has high efficiency, high starting torque and can buffer the load fluctuation, and shows good driving performance.

Key words: coupler, experimental research, finite element, permanent magnetic eddy-current

CLC Number:

TH113

HE Fujun, ZHONG Yuhai, ZHANG Ruijie, SONG Xuemei. Research on Characteristics of Permanent Magnet Eddy-current Coupling Drive[J]. Journal of Mechanical Engineering, 2016, 52(8): 23-28.

References

[1] LEQUESNE B, LIU Buyun, THOMAS W. Eddy-current machines with permanent magnets and solid rotors [J]. IEEE Transactions on Industry Applications, 1997, 33(5)：451-457.
[2] EDWARDS J D, JAYAWANT B V, DAWSON W R C, et al. Permanent magnet linear eddy-current brake with a non-magnetic reaction plate[J]. IEEE Proc-Elector Power Apprl, 1999, 146(6)：627-631.
[3] HOFMANN M, WERLE T, PFEIFFER R, et al. 2D and 3D numerical field computation of eddy-current brakes for traction [J]. IEEE Transactions on Magnetics, 2000, 36(4)：1758-1763.
[4] 王玉良, 王新昱. 永磁联轴器传动力矩的一种新算法[J]. 机械传动, 2004, 28(3)：16-17.
WANG Yuliang, WANG Xinyu. A new calculation on the transmission torque of magnetic couplings[J]. Journal of Mechanical Transmission, 2004, 28(3)：16-17.
[5] GAY S, EHSANI M. Analysis and experimental testing of a permanent magnet eddy-current brake[C] //IEEE Vehicle Power and Propulsion Conference. Chicago, 2005：756-765.
[6] 赵韩, 王勇,田杰. 磁力机械研究综述[J]. 机械工程学报, 2003, 39(12)：31-36.
ZHAO Han, WANG Yong, TIAN Jie. Review of study on magnet machine and mechanism[J]. Chinese Journal of Mechanical Engineering, 2003, 39(12)：31-36.
[7] 彭科容. 永磁磁力耦合器结构与特性研究[D]. 哈尔滨：哈尔滨工业大学, 2008.
PENG Kerong. Research on the structure and characteristics of permanent magnetic coupling[D]. Harbin：Harbin Institute of Technology, 2008.
[8] 刘虎, 房建成. 新型永磁偏置轴向磁轴承的磁力特性[J]. 机械工程学报, 2010, 46(8)：167-174.
LIU Hu, FANG Jiancheng. Magnetic force characteristics of a novel permanent magnet biased axial magnetic bearing[J]. Journal of Mechanical Engineering, 2010, 46(8)：167-174.
[9] 何富君,仲于海,张子华,等. 抽油机永磁耦合驱动研究[J]. 石油机械, 2014, 42(10)：60-64.
HE Fujun, ZHONG Yuhai, ZHANG Zihua, et al. Research on permanent magnet coupling driving for pumping unit[J]. China Petroleum Machinery, 2014, 42(10)：60-64.
[10] 杨超君,管春松,丁磊,等. 盘式异步磁力联轴器传动特性[J]. 机械工程学报, 2014, 50(1)：76-84.
YANG Chaojun, GUANG Chunsong, DING Lei, et al. Transmission characteristics of axial asynchronous permanent magnet couplings[J]. Journal of Mechanical Engineering, 2014, 50(1)：76-84.
[11] 张泽东. 永磁磁力耦合器设计及关键技术研究[D]. 沈阳：沈阳工业大学,2012.
ZHANG Zedong. Design and key technology research of permanent magnet coupling[D]. Shenyang：Shenyang University of Technology,2012
[12] 仲于海. 抽油机用永磁磁力耦合器特性研究[D]. 大庆：东北石油大学,2014.
ZHONG Yuhai. Study on the character of permanent magnetic coupler applied to pumping unit[D]. Daqing：Northeastern University of Petroleum,2014.
[13] 孔繁余, 陈刚,曹卫东,等. 磁力泵磁性联轴器的磁场数值计算[J]. 机械工程学报, 2006, 42(11)：213-218.
KONG Fanyu. CHEN Gang, CAO Weidong, et al. Numerical calculation of magnetic filed in magnetic couplings of magnetic pump[J]. Chinese Journal of Mechanical Engineering, 2006, 42(11)：213-218.
[14] 李桃,林鹤云,黄允凯,等. 基于三维涡流场分析的永磁涡流联轴器特性[J].东南大学学报, 2010,40(2)：301-305.
LI Tao, LIN Heyun, HUANG Yunkai, et al. Characteristics study of permanent magnet eddy-current coupling based on 3D moving eddy-current field analysis[J]. Journal of Southeast University, 2010,40(2)：301-305.
[15] 孔立军,张涛,赵兵. 永磁磁轴承数学模型的研究[J].机械工程学报, 2005, 41(4)：69-74.
KONG Lijun, ZHANG Tao, ZHAO Bing. Study of mathematical model of permanent magnet bearings[J]. Chinese Journal of Mechanical Engineering, 2005, 41(4)：69-74.
[16] 何富君, 仲于海,常忠伟,等. 抽油机用永磁磁力耦合器试验研究[J]. 石油矿场机械, 2014, 43(11)：61-65.
HE Fujun, ZHONG Yuhai, CHANG Zhongwei, et al. Research of permanent magnetic coupler on oil pumping machine[J]. Oil Field Equipment, 2014, 43(11)：61-65.