牛头刨床的椭圆齿轮法优化设计  

Optimization Design of Elliptical Gear for Shaper

作　　者：黄志东[1] 徐君[2] 

机构地区：[1]辽宁科技学院机械工程学院,辽宁本溪117004 [2]华东交通大学信息工程学院,江西南昌330013

出　　处：《机械传动》2014年第4期67-70,共4页Journal of Mechanical Transmission

基　　金：辽宁省教育厅科研项目(L2012452);辽宁省普通高等学校本科重点支持专业(ZD201245);江西省教育厅科技青年基金项目(GJJ13320)

摘　　要：建立牛头刨床传动机构数学模型,分析牛头刨床的运动特性,提出将椭圆齿轮机构引入牛头刨床传动机构中,通过与复合形法优化的牛头刨床对比,表明椭圆齿轮法优化的牛头刨床推程速度平稳性显著提高,空行程时间大大减少。同时明确偏心率大小对推程速度误差和空行程时间的影响。最后,为简化结构,将椭圆齿轮机构内置于减速器中,设计出相应的椭圆齿轮减速器,并完成椭圆齿轮的三维建模及椭圆齿轮减速器的虚拟装配,为椭圆齿轮减速器在牛头刨床中的应用提供一定的理论依据。The mathematical model of shaper transmission mechanism is set up. The kinematic characteristic of shaper is analyzed. Introducing elliptical gear into transmission mechanism of shaper is presented. Compared with the complex--shape method, the result shows that velocity stationarity of push stroke is improved evidently and the time of non--working stroke is shortened obviously after u- sing shaper optimized by elliptical gear. And the effect of eccentricity on velocity error of push stroke and time of non--working stroke is clarified. At last, for simplifying structure, the elliptical gear mechanism is placed into reducer. The corresponding elliptical gear reducer is designed. The model of elliptical gear and the virtual assembly of elliptical gear reducer are achieved, which facilitates the ap- plication of elliptical gear reducer in shaper.

关 键 词：牛头刨床 椭圆齿轮 减速器 运动特性 虚拟装配 

分 类 号：TG552.1[金属学及工艺—金属切削加工及机床]