液压课程设计-钻镗专用机床液压系统设计.doc

目录一液压课程设计任务书.............................................................................. 2 二液压系统的设计与计算.......................................................................... 3 ........................................................................................ 3 ............................................................ 3 三拟订液压系统原理图................................................................................ 5 .................................................................................... 5 .................................................................................... 5 ............................................................................ 5 .................................................................................... 5 .................................................................................... 5 ............................................................................ 5 .................................................................... 5 ............................................................................ 5 四确定执行元件主要参数.............................................................................. 7 .................................................................................... 7 D和活塞竿直径 d................................................ 7 ........................................................... 7 ,流量和功率..................................... 7 ................................................................................... 9 五确定液压泵的规格和电动机功率及型号................................................ 10 .............................................................................. 10 .............................................................................. 10 ...................................................