渐开线螺旋面包络蜗杆分度凸轮机构分度盘上接触线的分布特点  

Distribution Characteristics of Contact Line on Indexing Plate of Involute Screw Surface Envelope Worm Indexing Cam Mechanisms

作　　者：梅国晖[1] 任朝晖[1] 任立义[1] 肖正扬[2] 陶学恒[2] 

机构地区：[1]东北大学机械工程与自动化学院,沈阳110006 [2]大连轻工业学院机械工程系,大连116034

出　　处：《机械科学与技术》2001年第1期49-50,共2页Mechanical Science and Technology for Aerospace Engineering

摘　　要：利用微分几何、啮合原理 ,建立了渐开线螺旋面包络蜗杆分度凸轮机构分度盘轮齿的廓面方程 ,推导了接触线方程 ,分析了分度盘轮齿廓面上接触线分布规律与圆柱面及渐开线柱面相比 ,渐开线螺旋面作为分度盘轮齿廓面具有很多优点。The envelope worm indexing cam mechanisms was a new type of indexing mechanism. The indexing cams that were enveloped with the different surface of indexing plate showed different characteristics. Considering the screw gear had many good qualities, we attempted to envelope the indexing cam with involute screw surface and hope to get good results. Using the differential geometry theories, we built the surface formulas of indexing plate. Using the meshing theories, we built the space coordinate system of the indexing plate and cam, and derived the formulas of contact lines. The distribution rule of the contact lines was analyzed. Compared with cylindrical surface and involute columnar surface, the contact lines on indexing plate of involute screw surface distributed over more of the indexing plate area, the distribution rule have much benefit.

关 键 词：渐开线螺旋面 包络蜗杆 接触线 分度凸轮机构 

分 类 号：TH132.47[机械工程—机械制造及自动化] TH112.1