（毕业设计论文）《Z32K型摇臂钻床变速箱的改进设计》.doc

PAGE 毕业设计报告 课题：Z32K型摇臂钻床变速箱的改进设计 系 部： 机电工程系 专 业： 机电一体化技术 班 级： 机电 姓 名： 学 号： 指导教师： 2012年3月 目 录 摘要···········································································3 第1章 绪论································································4 1.1 课题背景····························································4 1.2 发展趋势····························································4 第2章　液压机的设计及参数选择········································6 第3章　工况分析···························································7 3.1 动力（负载）分析及负载循环图··································7 3.1.1 摩擦负载······················································7 3.1.2 惯性负载······················································7 3.1.3 工作负载······················································8 3.1.4 负载循环图···················································8 3.2 运动分析及运动循环图············································9 3.2.1 位移循环图L—t·············································9 3.2.2 速度循环图···················································9 3.2.3 运动循环图···················································10 第4章 拟订液压原理图··················································11 第５章　确定液压系统主要参数··········································13 5.1 确定液压缸几何尺寸··············································13 5.2 计算液压缸所需流量··············································15 5.3 计算系统所需的压力··············································16 5.4 绘制冲压机主缸工况图···········································17 5.5 液压缸主要零件的结构材料及技术要求·························19 5.5.1 液压缸的基本参数··········································19 5.5.2 液压缸的类型和安装方式··································19 5.5.3 液压缸的主要零件及技术要求·····························19 5.6 液压缸结构参数的计算···········································21 5.6.1 计算液压缸的厚度··········································21 5.6.2 液压缸油口的计算··········································22 5.6.3