弧齿锥齿轮大重合度设计及啮合性能对比  

High Contact Ratio Design and Meshing Performance Comparison for Spiral Bevel Gear

作　　者：苏进展[1] 魏刚 杨羽 常乐浩[1] 郭家舜 Su Jinzhan;Wei Gang;Yang Yu;Chang Lehao;Guo Jiashun(Key Laboratory of Road Construction Technology and Equipment of MOE,Chang'an University,Xi'an 710064,China)

机构地区：[1]长安大学道路施工技术与装备教育部重点实验室,陕西西安710064

出　　处：《机械传动》2022年第2期60-65,95,共7页Journal of Mechanical Transmission

基　　金：陕西省自然科学研究计划项目(2019JQ-695,2020JQ-383)。

摘　　要：为了改善弧齿锥齿轮啮合性能,提出了一种接触路径沿齿长方向的大重合度设计新方法。预置弧齿锥齿轮副的设计重合度和传动误差幅值及对称性,通过迭代优化局部综合参数,获得内对角和沿齿长的大重合度齿面印痕。借助齿面接触分析和轮齿承载接触分析,进行了两种大重合度设计在轮齿强度和承载传动误差上的比较。算例表明,接触路径沿齿长方向的大重合度设计在小轮、大轮弯曲强度和齿面接触强度上,分别提高了13.67%、10.05%和5.77%,承载传动误差幅值下降了31.32%,并且能够改善齿面印痕对安装误差的敏感性。In order to improve the meshing performance of spiral bevel gears,a novel design method of large contact ratio along face width contact path is proposed.The design contact ratio,transmission error amplitude and symmetry of spiral bevel gear pair are preset,contact paths of the inner diagonal and along the face width with large contact ratio are obtained by iteratively optimizing the local synthesis parameter.With the help of tooth surface contact analysis and loaded tooth contact analysis methods,the comparisons in tooth strength and load transmission error of the two large contact ratios designs are performed.The numerical examples show that the large contact ratio of contact path along the face width increases up to13.67%and 10.05%in the bending strength of pinion and wheel,while up to 5.77%in contact strength of the gear pair,respectively,and the amplitude of the load transmission error decreases up to 31.32%,moreover it can also improves the sensitivity of the contact pattern to assemble errors.

关 键 词：弧齿锥齿轮 大重合度 接触印痕 轮齿强度 误差敏感性 

分 类 号：TH132.41[机械工程—机械制造及自动化]