qtz40塔式起重机总体及臂架设计毕业设计说明书40含图纸41

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1、毕业设计说明书题目：QTZ40塔式起重机总体及臂架设计目录第1章前言··········································································11.1概述·············································································11.2发展趋势·······································································1

2、第2章总体设计····································································22.1概述············································································22.2确定总体设计方案····························································22.3总体设计原则································

3、································292.4平衡臂与平衡重的计算······················································302.5起重特性曲线·································································322.6塔机风力计算································································332.7整机的抗倾覆稳定性计算···

4、················································432.8固定基础稳定性计算························································49第3章吊臂的设计计算························································503.1分析单吊点与双吊点的优缺点··············································503.2吊臂吊点位置选择········

5、···················································513.3吊臂结构参数参数···························································523.4有限元模型建立过程的几点简化···········································533.5吊臂结构的有限元分析计算·················································543.6计算结果分析·········

6、························································693.7吊臂强度校核·································································763.8吊臂稳定性校核······························································76毕业设计小结·························································

7、·············87致谢··················································································88参考文献············································································89设计项目计算与说明结果前言概述发展趋势总体设计概述第1章前言1.1概述塔式起重机是我们建筑机械的关键设备，在建筑施工中起着重要作用，我们只用了五十年时间走完了国外发达国家上百年

8、塔机发展的路程，如今已达到发达国家九十年代末期水平并跻身于当代国际市场。QTZ40型塔式起重机简称QTZ40型塔机，是一种结构合理，性能比较优异的产品，比较国内同规格同类型的塔机具有更多的优点，能够满足高层