流体机械2017，Vol.45Issue(3)：15-20,6.DOI:10.3969/j.issn.1005-0329.2017.03.004
柔性极靴磁脂密封温度场和传热性能的研究
Performance Study of Temperature Field and Heat Transfer of Magnetic Grease Seal with Flexible Pole Piece
摘要
Abstract
With regard to existing problems of current magnetic grease seal and brush seal such as low bearing pressure ability,pole piece bumps against spindle frequently,biggish friction heat and necessary leakage,combining adventages of magnetic grease seal and brush seal,new Magnetic Grease Seal with Flexible Pole Piece (MGS-FPP)is presented.FEM model for MGS-FPP was set up by GAMBIT and thermal field of seal,temperature of magnetic grease and heat transfer characters were relatively studied in theory.The result shows that sealing contact line speed and the diameter of the flexible pole piece have effect on the temperature change,while arrangement angle and installation interference exerts an limited impact on the temperature rise.Due to thin coating,changing coating material has little influence on temperature of magnetic grease.In addition,test system for MGS-FPP was also established and it is verified that with the shaft speed increasing,the power consumption and the temperature of magnetic grease significantly rise.关键词
磁脂密封/柔性极靴/磁场分布/磁脂温升Key words
magnetic grease seal/flexible pole piece/magnetic field distribution/magnetic grease temperature分类
机械制造引用本文复制引用
李子贤,张东胜,张禹,李双喜..柔性极靴磁脂密封温度场和传热性能的研究[J].流体机械,2017,45(3):15-20,6.基金项目
国家重点基础研究发展计划973项目(2012CB026000) （2012CB026000）
