Journal of Mechanical Engineering >

2017 , Vol. 53 >Issue 20: 192 - 201

DOI: https://doi.org/10.3901/JME.2017.20.192

Non-contact Rotation Driving System Using Permanent-magnetic Suspension

  • SUN Feng ,
  • WEI Wei ,
  • JIN Jiaqi ,
  • JIN Junjie ,
  • TONG Ling ,
  • OKA Koichi
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  • 1. School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870;
    2. Department of Intelligent Mechanical System Engineering, Kochi University of Technology, Kochi 782-8502, Japan

Received date: 2016-11-30

  Revised date: 2017-06-29

  Online published: 2017-10-20

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Abstract

Permanent magnetic suspension and non-contact rotation driving system is presented, in which consists of two parts, the suspension part and the non-contact rotation driving part. To realize the stable suspension in the vertical direction, the suspension part is using the permanent magnet driven by the voice coil motor on the motion control mode. The rotary driving part is that the radial magnetized permanent magnet is driven by a DC servo motor, formating variation magnetic field and realizing the rotation of non contact driving suspension. The suspension and driving principle of the system is introduced. A mathematical model of non-contact driving is established and simulation and experiment are used to analyze the rotating driving characteristics of the system. The analysis results show that non-contact rotation driving of suspension body can be driven by voice coil actuator disk permanent magnets rotate. Whether iron ball rotation regardless of the number of magnets, the driving number of magnet is proportional to the system response speed. As the number of the driven magnet is increasing, linearity between output and input speed is improved relatively, which causes the stability of rotating system. The non-contact driving characteristics of the system are clarified, which lays a theoretical foundation for the non-contact manipulation and attitude control of ferromagnetic objects or parts in isolated environment.

Key words： permanent magnetic suspension; non-contact; rotation driving; experimental analysis; mathematical model

Cite this article

SUN Feng , WEI Wei , JIN Jiaqi , JIN Junjie , TONG Ling , OKA Koichi . Non-contact Rotation Driving System Using Permanent-magnetic Suspension[J]. Journal of Mechanical Engineering, 2017 , 53(20) : 192 -201 . DOI: 10.3901/JME.2017.20.192

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