双铰接剪叉式液压升降台的设计本科毕业设计说明资料.doc
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目 录
第一章 绪 论························································ 1
1.1 举升机的发展简史·····················································1
1.2 汽车举升机的设计特点 ···············································2
1.3 汽车举升机的安全保证措施 ···········································3
1.3.1 设计制造方面的安全保证措施······································· 3
1.3.2 使用维护方面的安全保证措施······································· 4
第二章 剪叉式升降台的应用及其受力分析的讨论························· 5
2.1剪叉式升降平台的三种结构形式······································· 5
2.2 双铰接剪叉式升降平台机构的位置参数计算··························· 6
2.3 双铰接剪叉式升降平台机构的动力参数计算··························· 8
2.4 剪叉式升降平台机构设计时应注意的问题······························9
2.5 针对性比较小实例：··················································· 9
2.6双铰接剪叉式升降平台机构中两种液压缸布置方式的分析比较········· 12
2.6.1问题的提出：······················································13
2.6.2两种布置方式的分析和比较：······································14
2.6.3实例计算·························································15
第三章液压传动系统的设计计算·········································· 20
3.1明确设计要求 制定基本方案：········································· 20
3.2制定液压系统的基本方案·············································· 20
3.2.1确定液压执行元件的形式 ·······································20
3.2.2 确定液压缸的类型················································22
3.2.3 确定液压缸的安装方式···········································22
3.2.4 缸盖联接的类型··················································22
3.2.5拟订液压执行元件运动控制回路···································22
3.2.6液压源系统························································22
3.3确定液压系统的主要参数·············································· 23
3.3.1载荷的组成与计算：················································23
3.3.2初选系统压力······················································25
3.3.3计算液压缸的主要结构尺寸········································26
3.3.4确定液压泵的参数·················································28
3.3.5管道尺寸的确定 ··············································…30
3.3.6油箱容量的确定················································ 31
3.4液压缸主要零件结构、材料及技术
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