QTZ125塔式起重机总体、臂架、变幅机构设计【毕业论文+CAD图纸全套】.doc
文本预览下载声明
目录
第一章 前言··················································································1
1.1塔式起重机概述············································································1
1.2塔式起重机的发展趋势····································································3
第二章 总体设计············································································4
2.1 概述························································································4
2.2 总体设计方案的确定······································································5
2.2.1金属结构·················································································5
2.2.2工作机构················································································25
2.3 总体设计原则············································································29
2.3.1 整机工作级别··········································································32
2.3.2 机构工作级别··········································································32
2.3.3 主要技术性能参数····································································32
2.4平衡臂与平衡重的计算···································································33
2.5起重特性曲线·············································································35
2.6塔机风力计算·············································································37
2.6.1工作工况Ⅰ············································································38
2.6.2工作工况Ⅱ·············································································42
2.6.3工作工况Ⅲ·············································································44
2.6.4非工作工况Ⅳ···········································································46
2.7整机的抗倾翻稳定性·····································································48
2.7.1工作工况Ⅰ·············································································49
2.7.2工作工况Ⅱ·············································································50
2.7.3非工作工况Ⅲ·······································
显示全部