设计简介
摘 要：本起重机为起重量Q=50t,起升高度H=4.2m,起升速度v=7.5m/min的桥式起重机。本课题主要对起重机的起升机构进行总体设计，该起重机具有一个起升机构，由一台电动机，一台减速器，一台制动器，一套卷筒装置，一套吊钩装置和一套滑轮装置构成。要求起重设备运行平稳, 定位准确, 安全可靠, 技术性能先进。
关键词：起重机，桥式起重机，起升机构设计
Abstract：The crane is bridge crane for lifting weight Q = 50 t, hoisting height H = 4.2 m, lifting speed v = 7.5 m/min . This topic is mainly to the overall design of hoisting mechanism of crane, the crane is consisted of a lifting mechanism, an electric motor, a speed reducer, a brake, a set of drum unit, a set of hook device and a pulley. Required lifting equipment running smooth, accurate, safe, reliable and advanced technical performance.
Key word：Crane;bridge crane; hoisting mechanism design;
目 录
摘要…………………………………………………………………………1
关键词…………………………………………………………………………1
1前言…………………………………………………………………………1
2起升机构的计算…………………………………………………………3
2.1确定起升机构传动方案………………………………………………3
2.2选择钢丝绳…………………………………………………………3
2.3确定滑轮主要尺寸………………………………………………………4
2.4确定卷筒尺寸…………………………………………………………5
2.5选择电动机…………………………………………………………6
2.6验算电动机发热条件……………………………………………………7
2.7选择减速器…………………………………………………………7
2.8验算起升速度和实际所需功率……………………………………7
2.9校核减速器输出强度……………………………………………………7
2.10选择制动器…………………………………………………………8
2.11选择联轴器…………………………………………………………8
2.12验算起动时间………………………………………………………9
2.13验算制动时间………………………………………………………9
2.14高速浮动轴的计算…………………………………………………10
2.14.1疲劳计算………………………………………………………10
2.14.2强度验算………………………………………………………10
3.6.1卷筒心轴计算…………………………………………………14
3.6.2轴承……………………………………………………………16
3.6.3绳端固定装置计算……………………………………………17
4吊钩装置的设计………………………………………………………18
4.2.1确定吊钩装置构造方案……………………………………………18
4.2.2吊钩弯曲部分断面的验算………………………………………19
5结论……………………………………………………………………………22
参考文献……………………………………………………………………22
致谢……………………………………………………………………………23
关键词：起重机，桥式起重机，起升机构设计
Abstract：The crane is bridge crane for lifting weight Q = 50 t, hoisting height H = 4.2 m, lifting speed v = 7.5 m/min . This topic is mainly to the overall design of hoisting mechanism of crane, the crane is consisted of a lifting mechanism, an electric motor, a speed reducer, a brake, a set of drum unit, a set of hook device and a pulley. Required lifting equipment running smooth, accurate, safe, reliable and advanced technical performance.
Key word：Crane;bridge crane; hoisting mechanism design;
目 录
摘要…………………………………………………………………………1
关键词…………………………………………………………………………1
1前言…………………………………………………………………………1
2起升机构的计算…………………………………………………………3
2.1确定起升机构传动方案………………………………………………3
2.2选择钢丝绳…………………………………………………………3
2.3确定滑轮主要尺寸………………………………………………………4
2.4确定卷筒尺寸…………………………………………………………5
2.5选择电动机…………………………………………………………6
2.6验算电动机发热条件……………………………………………………7
2.7选择减速器…………………………………………………………7
2.8验算起升速度和实际所需功率……………………………………7
2.9校核减速器输出强度……………………………………………………7
2.10选择制动器…………………………………………………………8
2.11选择联轴器…………………………………………………………8
2.12验算起动时间………………………………………………………9
2.13验算制动时间………………………………………………………9
2.14高速浮动轴的计算…………………………………………………10
2.14.1疲劳计算………………………………………………………10
2.14.2强度验算………………………………………………………10
3卷筒部件的设计………………………………………………………11
3.1卷筒……………………………………………………………113.2联接盘……………………………………………………………12
3.3卷筒轮毂………………………………………………………12
3.4卷筒轴、轴承及轴承座…………………………………………13
3.5钢丝绳在卷筒上的固定装置……………………………………14
3.6卷筒部件计算……………………………………………………143.6.1卷筒心轴计算…………………………………………………14
3.6.2轴承……………………………………………………………16
3.6.3绳端固定装置计算……………………………………………17
4吊钩装置的设计………………………………………………………18
4.1吊钩装置的构造………………………………………………………18
4.2吊钩装置的计算………………………………………………………184.2.1确定吊钩装置构造方案……………………………………………18
4.2.2吊钩弯曲部分断面的验算………………………………………19
5结论……………………………………………………………………………22
参考文献……………………………………………………………………22
致谢……………………………………………………………………………23
