锥齿轮传动行星式平面研磨机主传动设计及分析

Design and Analysis of Main Transmission of Planetary Plane Lapping Machine with Bevel Gear Drive

为了实现较大工件的平面研磨,研磨机需要完成大回转直径的行星运动。通过分析工件与研磨盘的相对运动,确定了获得较佳研磨效果的研磨轨迹和研磨速度,然后分析了采用锥齿轮传动实现研磨工件的大回转直径平动的可行性,设计了锥齿轮传动平面研磨机的主传动系统的具体传动机构,并对锥齿轮传动的主要参数进行了设计计算。对锥齿轮传动行星运动传动比进行了计算,通过合理选择各锥齿轮齿数,实现了工件的平动。加大锥齿轮传动轴的长度,可以获得更大回转直径的平面研磨运动。

To accomplish the plane lapping of the bigger workpiece, the lapping machine should adopt planetary motion with large rotation diameter. The lapping trace and velocity were ensured to achieve better lapping effect by analyzing relative motion between workpiece and lapping disk. The feasibility of translational motion of lapped workpiece with bevel gear drive was analyzed. The system of main transmission with bevel gear drive was designed in detail. The main parameters of the bevel gear drive were designed and figured out. The transmission ratio of planetary motion with bevel gear was calculated. Results shown that choosing the number of teeth of these bevel gears could accomplish translational motion of lapped workpiece. By inereasing the length of transmission shaft, the larger rotation diameter would be obtained