ZHANG Jin-song, ZHANG Da-li. Investigation on Improving Life of Vertical Motor Thrust Bearing by Axial Magnetic Force[J]. Journal of University of Electronic Science and Technology of China, 2012, 41(4): 637-640. DOI: 10.3969/j.issn.1001-0548.2012.04.031
Citation: ZHANG Jin-song, ZHANG Da-li. Investigation on Improving Life of Vertical Motor Thrust Bearing by Axial Magnetic Force[J]. Journal of University of Electronic Science and Technology of China, 2012, 41(4): 637-640. DOI: 10.3969/j.issn.1001-0548.2012.04.031

Investigation on Improving Life of Vertical Motor Thrust Bearing by Axial Magnetic Force

  • To solve the heavy wear and poor life of thrust bearing in vertical motor because of its axial load long-term overload, the paper proposes a method that the axial load is offset by axial electromagnetic tension generated after the asynchronous motor rotor magnetized. Taking the vertical motor of condensed water pump in a 200 MW thermal power unit as example, the life of thrust bearing is calculated in the case of a part of axial loads on the axial magnetic force auxiliary. Experiment result shows that the method can lower the wear of thrust bearing and improve its life.
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