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 4.1吊钩装置的构造………………………………………………………18 4.2吊钩装置的计算………………………………………………………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

桥式起重机起升机构设计

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

Design on gantry crane hoisting mechanism

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,