摘要··········································································Ⅰ

Abstract·····································································Ⅱ

第1章  绪论·································································1

1.1 课题背景·····························································1

1.2 发展趋势·····························································1

第2章　方案论证···························································3

2.1 传动方案的论证·····················································3

2.2 控制元件的分析·····················································4

第3章　液压机的设计及参数选择·········································5

第4章　工况分析···························································6

4.1 动力（负载）分析及负载循环图··································6

4.1.1 摩擦负载······················································6

4.1.2 惯性负载······················································6

4.1.3 工作负载······················································7

4.1.4 负载循环图···················································8

4.2 运动分析及运动循环图·············································8

4.2.1 位移循环图L—t·············································8

4.2.2 速度循环图···················································9

第５章　确定液压系统主要参数··········································10

5.1 确定液压缸几何尺寸··············································10

5.2 计算液压缸所需流量··············································13

5.3 计算系统所需的压力··············································13

5.4 绘制冲压机主缸工况图···········································15

5.5 液压缸主要零件的结构材料及技术要求·························17

5.5.1 液压缸的基本参数··········································17

5.5.2 液压缸的类型和安装方式··································18

5.5.3 液压缸的主要零件及技术要求·····························18

5.6 液压缸结构参数的计算···········································19

5.6.1 计算液压缸的厚度··········································19

5.6.2 液压缸油口的计算··········································21

5.6.3 缸底厚度的计算·············································21

5.7 液压缸的校合······················································22

5.7.1 液压缸中背压力的校合·····································22

5.7.2 活塞杆的校合···············································23

第6章  拟订液压原理图··················································24

第7章  液压元件和液压油的选择········································26

7.1 液压泵的选择······················································26

7.1.1 确定泵的最大工作压力·····································26

7.1.2 确定液压泵的流量Q和排量q···························27

7.1.3 选择液压泵的规格··········································28

7.1.4 确定驱动液压缸的功率·····································28

7.2 电动机的选择······················································29

7.3 控制阀的选择······················································29

7.4 管道（导管）的选择·················································31

7.4.1 管道内径的确定·············································31

7.4.2 管道壁厚b的计算···········································32

7.5 确定油箱的容量···················································33

7.5.1 液压油的选择···············································34

7.5.2 过滤器的选择···············································34

7.6 联轴器的设计·····················································34

第8章  液压系统的性能验算·············································36

8.1 管路系统压力损失·················································36

8.1.1 沿程压力损失的计算·······································37

8.1.2 管路内的局部压力损失·····································38

8.1.3 阀类元件的局部压力损失··································38

8.2 液压冲击的计算···················································39

8.3 液压系统热分析及其计算·········································41

8.3.1 液压泵功率损失产生的热流量（热量）·····················41

8.3.2 液压系统的散热计算·······································42

第9章  限程装置的设计··················································44

第10章  机架的设计······················································45

10.1 机架材料的选择··················································46

10.2 肋的作用··························································46

第11章  液压系统的安装与调试·········································47

11.1 液压系统的安装··················································47

11.1.1 安装前的准备工作·········································47

11.1.2 管子加工···················································47

11.2 液压系统的调试··················································48

11.2.1 调试前的检查··············································48

11.2.2 启动液压泵·················································48

11.2.3 系统排气···················································49

11.2.4 系统耐压实验··············································49

12.2.5 负载试车···················································49

结论··········································································50

致谢··········································································51

参考文献·····································································52

结论

毕业设计已经完成，我的设计题目是100吨校正压装液压机。本设计之所以选择液压系统，是因为其体积小、重量轻、可实现无级调速、结构简单，工作寿命长。另外，液压传动是一项年轻的技术，有着很大的发展前途。

本设计的液压机适用于轴类零件、型材的校正和轴套零件的压装。通过这次设计，让我对其结构和工作原理有了一定的理解。设计中对液压缸的外型、活塞、油箱等的尺寸进行了设计和校合。通过各种参考材料和参考同类机器，对液压泵、电动机、各种阀、滤油器和冷却器等进行了选择。绘制了液压原理图、总装图和部装图。

虽然设计已经做完，但还存在很多问题和不足。由于本人能力有限，有很多的先进的、更方便的技术都没能用上。例如：控制系统可以用PLC控制。这些都是我应该在以后的学习工作中进一步学习的。

同时，这次设计也用上了大学四年内所学的各种知识，如：机械设计、材料力学、互换性等等，是对大学四年学习成绩的一次检验，锻炼了我的设计动手能力，为以后的工作打下了良好的基础。这次设计也是我学生时代的总结。不久我将走向自己的工作岗位，这次设计让我明白，以后要学的东西还有很多，我会在未来的工作岗位上不断努力，刻苦学习，做一个有用的人。