高速混合陶瓷轴承性能试验  

Friction characteristics of hybrid ceramic bearing under low-volatility grease lubrication

作　　者：白越[1,2,3] 刘治华[1,2] 吴一辉[1,3] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,长春130033 [2]中国科学院研究生院,北京100049 [3]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《哈尔滨工业大学学报》2009年第7期169-171,共3页Journal of Harbin Institute of Technology

基　　金：国家高技术研究发展计划资助项目(B02X04Z);中科院"十一五"预研项目(61501020304);长春光机所青年创新基金资助项目(Q03Q20Z;O59X12Q050)

摘　　要：为进一步研究陶瓷轴承摩擦性能,通过混合陶瓷球轴承与同型号同精度钢制球轴承的对比试验,分析高速精密陶瓷球轴承应用于卫星姿控飞轮的可行性,试验结果表明:陶瓷球轴承的静态摩擦力矩、高速运转下的温升和摩擦功耗均小于钢制球轴承;陶瓷球轴承加速度振动性能和钢制球轴承相当;速度振动性能值在低频和中频段陶瓷球轴承小,但在高频段速度振动值大,飞轮工作转速远低于高频段所对应的转速,陶瓷球轴承的综合振动性能优于钢制球轴承;将陶瓷球轴承应用于小卫星调姿飞轮中,可以极大地提高飞轮的角动量/质量比,减轻系统质量,从而获得更大的功能密度.To further study the friction characteristics of ceramic bearing, differences of friction characteristics between the hybrid ceramic bearing and the all-steel bearing were investigated by experiments using the basic friction tester under low-volatility grease lubrication. The results show that the static friction torque, the temperature rise and the friction power loss at high-speed running of hybrid ceramic bearing are less than those of all-steel bearing. The acceleration vibration performance of both bearings is almost the same. The value of velocity vibration of the hybrid ceramic bearing is much smaller than that of the all-steel bearing at low and intermediate frequency, while the result is reverse at high frequency. The application of ceramic bearing to the momentum wheel of satellites can improve the angular momentum - mass ratio of wheel, reduce the mass of the system and obtain better function density.

关 键 词：混合陶瓷球轴承 卫星 动量轮 低挥发脂 摩擦试验 

分 类 号：TH133.7[机械工程—机械制造及自动化] V474.2[航空宇航科学与技术—飞行器设计]