文档介绍：摘要
本设计主要分析了起重机的工作原理,工作环境和工作特点,并结合实际,对起重机的整体结构进行设计,对各部分的元件进行了计算,选型和校核。
本起重机为20-5t桥式起重机,其结构主要由小车,大车,桥架结构,电气设备,控制装置等构成。主要用于车间,仓库类货物的吊装和搬运。
本起重机结构简单,维修方便,安全可靠,能够大幅提升生产效率。
关键词:桥式起重机;起重小车;大车;桥架结构
Abstract
This design mainly analyzes the working principle of the crane, working environment and job characteristics, bined with the practice, design the overall structure of crane, on the part of ponents of the calculation, selection and checking.
The crane for 20-5t bridge crane, the structure mainly by car, crane, bridge structure, electrical equipment, control device. Mainly used for workshop, warehouse goods lifting and handling.
The crane has the advantages of simple structure, convenient repair, safe and reliable, can greatly improve production efficiency.
Key words: Bridge crane lifting trolley crane bridge structure
目录
摘要 1
ABSTRACT 2
目录 3
1 概述 7
7
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2 吊钩桥式起重机设计任务书 16
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3 小车起升机构和运行机构的计算 17
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,选择滑轮组和吊钩组 17
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24
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37
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4 大车运行机构的计算 48
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,并验算其强度 48
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61
5 桥架结构的计算参数 63
63
大车轮距 63
主梁高度 63
端梁高度