Z5140立式钻床主传动系统设计

机制设计机床设计任务.............. ................................２
绪论..........................................................３
１主电机选用..................................................４
２转速图的拟定................................................５
　２.１选择公比...............................................５
　２.２选择结构式.............................................６
　２.３拟定转速图.............................................７
３确定各变速组变速副齿数......................................８
　３.１齿轮齿数的确定应注意的问题.............................９
　３.２齿轮的计算............................................１０
　３.３齿轮的布置............................................１１
３.４主传动系统图..........................................
４轴的计算和确定.............................................１２
　４.１确定主轴和各轴的计算转速..............................１２
　４.２确定传动轴的计算转速..................................１３
　　　４.３轴颈的确定............................................１４
　　　４.４主轴轴颈直径的确定....................................１５
５各变速组齿轮模数的确定和校核...............................１６
　５.１齿轮模数的初步计算....................................１７
　５.２齿轮校核..............................................１８
６轴的校核...................................................１９
　６.１主轴的扭转刚度校核....................................２０
　６.２扭转刚度校核..........................................２１
７联轴器的设计...............................................２２
　７.１选择联轴器的类型......................................２２
　７.２计算联轴器的计算扭矩..................................２３
　７.３确定联轴器的型号......................................２４
　７.４校核最大转速..........................................２５
　７.５协调轴孔直径..........................................２６
　７.６规定部件相应的安装精度................................２７
８轴承的选择和验算...........................................２８
　８.１轴承的选择............................................２９
　８.２轴承寿命的验算........................................３０
总结.........................................................３２
参考文献.....................................................３３