精密角接触球轴承综合参数测量仪  

Multi-parameter measuring instrument for precise angular contact rolling bearing

作　　者：胡鹏浩[1] 胡毅[1] 党学明[1] 

机构地区：[1]合肥工业大学仪器科学与光电工程学院,安徽合肥230009

出　　处：《光学精密工程》2014年第11期3038-3043,共6页Optics and Precision Engineering

基　　金：国家自然科学基金资助项目(No.51175140);中央高校基本科研业务费专项资金资助项目(No.2013HGCH0005)

摘　　要：结合惯性导航测试设备精密轴系的技术要求,研发了滚动轴承综合参数测试仪。该测试仪能检测轴承回转过程中的摩擦力矩、轴承刚度及几何精度,并能以图表或曲线的形式给出摩擦力矩与轴系预紧载荷、预紧载荷与轴承轴向位移等的关系。该系统集成了压力、位移、力矩等类型的传感器,在虚拟仪器平台上设计硬件控制、测量系统和软件,具有可扩展性好,成本低等特点。该系统将装配中难以控制的最佳预紧力转换为对轴承隔套高度差的控制问题,较好地解决了轴系装配过程中的最佳预紧问题并保证了轴系具有平稳的摩擦力矩。测量轴系的摩擦力矩特性显示,在8r/min转速下,运行平稳后的转动摩擦力矩为(0.62±0.16)Nm。该实验数据为控制转台的低速率运动和建立准确的补偿干扰力矩模型提供了理论依据。According to the technical requirements of precision shafting of inertial navigation test equipment,a comprehensive parameter tester for the rolling bearing is developed.The tester is used to measure the friction torque,bearing stiffness and geometric accuracy in the rotary processing of the rolling bearing and it gives the relations between the friction torque and the axial pre-tightening load,as well as the axial pre-tightening load and the bear axial displacement in the form of a chart or a curve.The system integrates several kinds of sensors and designs hardware control,measuring system and software on a virtual platform.It is characterized by good expandability and lower costs.The system converts control of the best pre-tightening force into control of the bearing bushing height difference,which better solves the best pre-tightening problem in the process of shafting assembly and ensures a stable friction torque for the shafting system.The experiment results show that the system not only finishes all parameter detection successfully,but also can track the variation of frictional torque in bearing running.Under a rotation speed of 8 r/min speed,the rotation friction torque at stable operation is （0.62 ±0.16） Nm.The experimental data provide theoretical foundation for the control of low rate motion of turntables and the establishment of compensation model for disturbance torques.

关 键 词：角接触球轴承 摩擦力矩检测 预紧力 预紧量 综合参数测量仪 

分 类 号：V233.45[航空宇航科学与技术—航空宇航推进理论与工程]