可控式液体润滑高速螺旋槽端面密封试验  

Experimental study for water-lubricated high-speed controllable spiral-groove face seals

作　　者：张国渊[1] 赵伟刚[2] 闫秀天[1] 袁小阳[3] 

机构地区：[1]西北工业大学机电学院,西安710072 [2]中国航天科技集团公司西安航天动力研究所,西安710100 [3]西安交通大学机械工程学院现代设计及转子轴承系统教育部重点实验室,西安710049

出　　处：《航空动力学报》2011年第4期947-953,共7页Journal of Aerospace Power

基　　金：中国博士后科学基金(20100481367)

摘　　要：研制了电磁加载装置和摩擦力矩测试装置,并将其应用于液体润滑的螺旋槽端面密封试验中.试验研究了端面密封坝处液膜特性、端面温升、端面摩擦力等密封性能参数以及端面闭合力对密封性能的影响.试验结果表明,密封坝处压力随转速的增加而增加,当转速较大时,端面的温升也较高.端面密封在液膜润滑下具有较小的摩擦力.利用电磁加载装置和摩擦力矩测试装置实现了对端面密封端面接触及润滑状态的监控,体现了可控式端面密封的设计概念,这对进一步发展动态端面密封性能动态监控技术及其主动控制具有重要的工程参考价值.Electromagnetic loadable device and testing device for face friction torque were developed,and applied into experimental study of controllable,full water-film lubricated spiral-groove mechanical face seals.Controllable parameters of face seal,such as face temperature,friction torque,and face pressure,were measured,and the influence of axial balancing controlled load on the controllable parameters was studied.Experimental results show that the face pressure increases with increasing rotation speed,and the face temperature is higher with higher speed.The full water-film lubricated face seal has less friction force.The performance parameters of electromagnetic loadable device and testing device for face friction torque were tested in the experiment process,and the target for testing and verifying the controllability of spiral-groove face seals was implemented.The study has the important engineering value for developing real-time monitoring and active control of the spiral-groove face seal.

关 键 词：端面密封 可控性 螺旋槽密封 水润滑 端面摩擦力 

分 类 号：TH117[机械工程—机械设计及理论]