航空飞行器用超高速角接触球轴承的研制与试验验证  

Development and Test Verification of Ultra-High Speed Angular Contact Ball Bearings for Aircraft

作　　者：郝大庆[1,2] 李鸿亮 郑艳伟[1,2] 韩涛 徐润润 HAO Daqing;LI Hongliang;ZHENG Yanwei;HAN Tao;XU Runrun(Luoyang Bearing Research Institute Co., Ltd., Luoyang 471039, China;Henan Key Laboratory of High Performance Bearing Technology,Luoyang 471039,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039 [2]河南省高性能轴承技术重点实验室,河南洛阳471039

出　　处：《轴承》2022年第6期38-42,共5页Bearing

摘　　要：针对某航空飞行器轴承工作转速120000 r/min,30次循环启停,寿命50 h的设计要求,开发了超高速角接触球轴承。通过动力学模型得到该轴承最大接触应力为2200 MPa,钢球最大旋滚比为0.5,保持架最大碰撞力为18 N,保持架最大打滑率为8%,轴承疲劳寿命为55 h。试验表明该轴承振动加速度不高于19.6 m/s^(2),最高温度不高于100℃。动力学分析和试验结果均说明轴承满足设计要求。According to design requirements of aircraft bearings with working speed of 120000 r/min,start and stop of 30 cycles,life of 50 h,the ultra-high speed angular contact ball bearings are developed.Obtained through dynamic model,the maximum contact stress in the bearings,maximum spin-to-roll ratio of steel balls,maximum collision force of cages,maximum slip rate of cages are respectively 2200 MPa,0.5,18 N,8%,and the fatigue life of the bearings is 55 h.Through verification test,the vibration acceleration of the bearings is less than 2.0 g,and the maximum temperature is lower than 100℃.The results of dynamic analysis and verification test show that the bearings meet the design requirements.

关 键 词：滚动轴承 角接触球轴承 航空发动机 高温轴承钢 转速 动力学分析 台架试验 

分 类 号：TH133.331[机械工程—机械制造及自动化] V263.5[航空宇航科学与技术—航空宇航制造工程]