弧线齿面齿轮的根切与变尖研究  

RESEARCH ON ARC TOOTH FACE-GEAR WITH UNDERCUTTING AND POINTING

作　　者：崔艳梅[1] 方宗德[1] 王丽萍[2] 

机构地区：[1]西北工业大学机电学院,西安710072 [2]郑州航空工业管理学院机电学院,郑州450015

出　　处：《机械强度》2014年第4期572-577,共6页Journal of Mechanical Strength

基　　金：国家自然科学基金(51175423);航空科学基金(2011ZB55002)资助项目~~

摘　　要：采用了假想产形齿轮与弧线齿圆柱齿轮和弧线齿面齿轮同时共轭啮合的展成法加工,根据啮合原理、微分几何及几何学原理,建立了面齿轮非根切的条件和面齿轮避免尖顶的几何模型,采用Matlab自主编程得到弧线齿面齿轮的三维模型,得到面齿轮不产生根切条件下的最小内半径和不变尖条件下最大外半径。采用多轴联动数控机床加工弧线齿面齿轮,加工实例证实了三维模型与齿宽设计为数控加工提供了精准的数据依据,保证了展成法加工弧线齿面齿轮的精确性,为齿面接触应力、齿根弯曲应力及动力学分析提供了理论基础,从而为实验研究和实际应用提供了系统的理论指导。The generating method adopted for processing arc tooth face-gear, the generating gear was assumed to conjugate arc tooth cylinder gear and are tooth face-gear. The non-undercutting and avoiding pointing conditions for face gear were established based on meshing principle, differential geometry and geometry principle. The precise 3D model was build for the arc tooth face-gear by Matlab. The maximum outer radius and the minimum inner were acquired in non-pointing and non-undercutting conditions. The are tooth face-gear was processed with multi-axis NC machining tools. A processing example verifies that the 3D mode/and the tooth width design offers accurate data for NC machining. It ensures the precision of the generating method in processing the arc tooth face-gear. The method provides a theoretical and tentative basis for the analysis of tooth surface contact stress, tooth root bending stress and dynamics and further furnishes systematic theoretical direction for experiment and application.

关 键 词：弧线齿面齿轮 数控 机械传动 展成法 根切 

分 类 号：TH132[机械工程—机械制造及自动化]