文档介绍：目录第一章绪论----------------------------------------------------------------------------4第二章工艺参数和工况分析---------------------------------------------------------6第三章升降机机械机构的设计计算-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------14第四章液压系统的设计要求,总体规划------------------------------------------22第五章执行元件的速度载荷---------------------------------------------------------、数量、安装位置----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------25第六章液压系统主要参数的确定--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------