风电轴承大尺寸钢球光球加工技术  

Ball Flashing Technology for Large Size Steel Balls of Wind Turbine Bearings

作　　者：袁浩[1] 刘疆 胡伟平 孙永杰 胡瑾 YUAN Hao;LIU Jiang;HU Weiping;SUN Yongjie;HU Jin(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China;Changzhou Yijingzhu Steel Ball Co.,Ltd.,Changzhou 213023,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212013 [2]常州亿精珠钢球有限公司,江苏常州213023

出　　处：《轴承》2024年第9期63-67,共5页Bearing

摘　　要：针对国内现有风电轴承大尺寸钢球光球机加工精度低,加工效率低的问题,对钢球在光球机动、静磨盘沟道内的运动规律、受力特点和磨削机理进行分析,光球时钢球受到的磨削力与动、静磨盘沟道深度比有关,并基于ADAMS仿真得到最佳动、静磨盘沟道深度比为7∶3,去两极和环带、成形、走圆工序最佳动磨盘转速分别为90,120,90 r/min。样机试验结果表明,改进后光球机的光球效率提高了30%,球形误差至少提高了0.2 mm,表面粗糙度Ra值至少减小了0.03 mm。In response to the problems of low machining precision and efficiency of existing ball flashing machine for large size steel balls of wind turbine bearings in China,the motion law,force characteristics and grinding mechanism of steel balls in grooves of movable and stationary grinding discs of the machine are analyzed.The grinding force on steel balls during ball flashing process is related to depth ratio of grooves of movable and stationary grinding discs.Based on ADAMS simulation,the optimal depth ratio of grooves of movable and stationary grinding discs is 7∶3,and the optimal rotational speeds of movable grinding discs for removing bipolar and circumferential belt,forming and rounding processes are 90,120 and 90 r/min respectively.The prototype test results show that the ball flashing efficiency of improved machine is increased by 30%,the spherical error is increased by at least 0.2 mm,and the surface roughness Ra value is reduced by at least 0.03 mm.

关 键 词：滚动轴承 风电轴承 钢球 仿真 磨削 转速 加工精度 

分 类 号：TH133.331[机械工程—机械制造及自动化] TM315[电气工程—电机]