基于纳米磁性液体的托辊密封与润滑设计及仿真  

Design and Simulation of Seal and Lubrication of Idler Based on Nano Magnetic Liquid

作　　者：徐浩 鲍久圣[1,2] 阴妍 刘同冈[1] XU Hao;BAO Jiusheng;YIN Yan;LIU Tonggang(School of Mechanical and Electrical Engineering,China University of Mining and Technology,Xuzhou Jiangsu 221116,China;Jiangsu Collaborative Innovation Center of Intelligent Mining Equipment,China University of Mining and Technology,Xuzhou Jiangsu 221008,China)

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116 [2]江苏省矿山智能采掘装备协同创新中心,江苏徐州221008

出　　处：《润滑与密封》2019年第6期109-112,共4页Lubrication Engineering

基　　金：中科院兰州化学物理研究所固体润滑国家重点实验室开放课题(LSL-1805);中国矿业大学重大项目培育专项(2014ZDPY10)

摘　　要：针对托辊通常采用的迷宫密封和唇形密封存在的不可靠、寿命短等问题,提出基于纳米磁性液体的托辊密封与润滑方案。通过设计托辊内外磁性液体密封件,选用兼顾密封与润滑性能的纳米磁性液体,形成可靠液体密封的同时对轴承进行润滑。利用ANSYS有限元软件分析磁性液体密封结构的磁场强度分布规律,计算密封间隙处磁感应强度和磁性液体密封的耐压能力。仿真结果表明,托辊的磁性液体密封结构设计合理,密封耐压能力满足使用要求。Aimed at the unreliable and short service life problems of labyrinth seal and lip seal commonly used in idlers,a sealing and lubrication scheme based on nano-magnetic liquid was proposed.By designing the magnetic liquid seals inner and outer the idler,the nano magnetic liquid with both sealing and lubricating properties was selected to form a reliable liquid sealing and lubrication of the idler roller at the same time.The distribution of magnetic field strength of the magnetic liquid sealing structure of the idler was analyzed by ANSYS finite element software.The pressure resistance of the magnetic liquid seal was calculated by taking the magnetic induction strength at the sealing gap.The results show that the design of the magnetic liquid sealing structure of the idler is reasonable,and the pressure resistance of the seal meets the application requirements.

关 键 词：托辊 磁性液体密封 磁性液体润滑 磁感应强度 耐压能力 

分 类 号：TB42[一般工业技术] TH117.2[机械工程—机械设计及理论]