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机械制造与自动化管理专业论文27854
毕业设计书
班级:2008级机械制造与自动化管理班
设计(论文)题目:LD型电动单梁桥式起重机
学生姓名:
日期:2011年6月至2011年 月
目录
2/n 一 概述··············································································1
1.单梁桥式起重机的工作方式················································1
2.单梁桥式起重机的机构特点················································1
3.桁架梁和箱的比较···························································1
4.LD型电动单梁桥式起重机各部件作用····································1
5.运行机构······································································3
6.发展趋势······································································4
7.工作条件及设计要求·························································4
8.型式及设计的构造特点······················································5
二 选择电动葫芦的型号规格·······················································6
三 主梁设计计算····································································6
1.主梁断面几何特性····························································6
2.主梁强度的计算·······························································7
3.主梁刚度的计算······························································10
4.主梁稳定性的计算·····························································12
四 端梁设计计算····································································12
1.轮距的确定·····································································12
2.端梁中央断面集合特点······················································13
3.起重机最大轮压······························································14
4.最大歪斜侧向力······························································19
5.断面中央断面合成压力······················································20
五 主、端梁连接计算·······························································20
1.主、端梁连接形成及受理分析··············································20
2.螺栓拉力的计算······························································20
六 大车运行机构设计计算··························································23
1.确定机构的传动方案·················
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