全圆齿根设计及其应力特性研究  

Study on Circular Fillet Design and Stress Behavior

作　　者：马贵叶[1] 张祖智[1] 杜万里[1] 刘越[1] 

机构地区：[1]中国北方车辆研究所车辆传动重点实验室,北京100072

出　　处：《车辆与动力技术》2012年第3期25-28,共4页Vehicle & Power Technology

摘　　要：通过理论推导,求解了相切全圆滚刀参数和考虑齿根挖根量的全圆滚刀参数.通过仿真渐开线齿轮的加工方法,得到了全圆弧槽形齿轮和普通齿轮三维仿真模型,然后使用有限元方法对其齿根应力进行分析,结果是小轮齿根应力降低了33%,从而表明采用全圆弧槽形可提高轮齿弯曲强度.By the theoretical way, the parameters of the tangent circular fillet and the circular fillet with undercut are deduced, and the method of practical application is proposed. By simulating the machining of involute gears, 3 D models of the gear with and without circular fillet are separately created. With finite element method, their bending stresses are analyzed and the results show that the bending stress of pinion reduces 33%. The analysis shows that it can increase gear bending strength to use circular fillet.

关 键 词：齿轮 全圆齿根 齿根应力 

分 类 号：TH132.41[机械工程—机械制造及自动化]