高速轻载圆柱滚子轴承打滑特性试验与分析  

Test and analysis of skidding characteristics of high-speed and light-load cylindrical roller bearings

作　　者：张家铭 邱明[1,2] 庞晓旭 董艳方[1] ZHANG Jiaming;QIU Ming;PANG Xiaoxu;DONG Yanfang(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang Henan 471003,China;Henan Collaborative Innovation Center for Advanced Manufacturing of Mechanical Equipment,Luoyang Henan 471003,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]机械装备先进制造河南省协同创新中心,河南洛阳471003

出　　处：《航空动力学报》2023年第12期2991-2999,共9页Journal of Aerospace Power

基　　金：国家自然科学基金(52275186)。

摘　　要：针对航空发动机圆柱滚子轴承在高速轻载条件下的打滑问题,开展试验与理论研究。基于滚动轴承打滑试验,探究内圈转速、径向载荷对轴承打滑特性的影响。同时考虑轴承工作径向游隙变化,求解滚子受力情况与轴承总力矩,并结合试验结果进行分析。研究表明,轴承内圈转速低于10000 r/min时,径向载荷增大使轴承工作径向游隙增大,同时加剧轴承打滑程度。随着内圈转速升高,轴承工作径向游隙逐渐减小;存在内圈临界转速,此时轴承打滑率最大。不同径向载荷下内圈临界转速有所差别,本次试验所得内圈临界转速在7000~8000 r/min之间。轴承整体滚子的总力矩直接影响轴承打滑程度。Experimental and theoretical studies were carried out to solve the problem of aeroengine cylindrical roller bearing skidding under high speed and light load.Based on the skidding test of rolling bearing,the influence of inner ring speed and radial load on bearing skid characteristics was investigated.At the same time,considering the variation of working radial clearance of the bearing,the force on the roller and the total torque of the bearing were solved,and analyzed with the test results.The results showed that when the speed of the inner ring of the bearing was lower than 10000 r/min,the increasing radial load increased the radial clearance of the bearing and aggravated the degree of skidding.With the increase of inner ring speed,the working radial clearance of bearing decreased gradually.There was a critical inner ring speed,when the bearing slip rate was the maximum.The critical speed of inner ring was different under different radial loads,and the critical speed of inner ring was between 7000—8000 r/min in this test.The total torque of the integral roller of bearing directly affected the sliding degree of bearing.

关 键 词：打滑特性 工作径向游隙 圆柱滚子轴承 临界转速 高速摄影机 

分 类 号：V232[航空宇航科学与技术—航空宇航推进理论与工程]