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双铰接剪叉式液压升降台的设计论文

更新日期:2010-12-12 | 来源:可好网 | 热门量:1005
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设计描述:
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、材料及技术要求················31
3.4.1缸体·······························31
3.4.2活塞·····························32
3.4.3活塞杆···························33
3.4.4活塞杆的导向、密封和防尘··················33
3.4.5液压缸的排气装置·····················34
3.4.6液压缸安装联接部分的型式及尺寸···············35
3.4.7绘制液压系统原理图····················35
第四章 台板与叉杆的设计计算 ··················39
4.1确定叉杆的结构材料及尺寸 ···················39
4.2横轴的选取························· 43
结 论························· 44
致 谢·························· 45
参考文献·························· 46

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