摘要本文主要介绍了桥式起重机的整体设计理论和设计过程，其中重点设计了桥式起重机的运行机构起升机构等，主要包括桥式起重机小车运行机构的整体设计及传动机构的布置，小车运行机构计算。还有轴承的选择、联轴器的选择、电动机的选择、减速器的选择和校核。桥式起重机是桥架型起重机的一种，它依靠起升机构和在水平面内的两个相互垂直方向移动的运行机构，能在矩形场地及其上空作业，是工矿企业广泛使用的一种起重运输机械。它具有承载能力大，工作可靠性高，制造工艺相对简单等优点。关键词：桥式起重机；起重机小车；卷筒；减速器。AbstractThisarticlemainlyintroducedtheentiredesigntheoryanddesignprocessofbridge-typehoistcrane，whichfocusedonthedesignofthebridgecraneoperationofinstitutionsandhoistingmechanism．Theoveralldesignthatmainlyincludesthebridgetypederricksmallcartocirculateorganizationandspreadthedecorationthatthemotivereaches,thesmallcarcirculatesanorganizationcalculation.Stillhavethechoiceofthechoice,electricmotorofthechoice,alliedstalkmachineofbearings,deceleratemachineofchoiceandpitintheschool.Thebridgecraneisabridge-typecrane,itreliesontheliftingmechanismandinthehorizontalplane,twomutuallyperpendiculardirectionoftheruninstitutions,intherectangularspaceoverthejob,theindustrialandminingenterpriseswidelyusedasastartingheavytransportmachinery.Ithasalargecarryingcapacity,highreliability,work,andmanufacturingprocessisrelativelysimple.Keyword:Bridgetypederrick;Thederricksmallcar;Booktube;Decelerateamachine.目录设计任务书---------------------------------------------------------------------------------1第1章概述------------------------------------------------------------------------------2第2章总体设计------------------------------------------------------------------------------22.1总体设计方案---------------------------------------------------------72.2四连杆变幅臂架系统运动学设计---------------------------------72.3总体尺寸规划----------------------------------------------------7第1章主起升机构计算-------------------------------------------------------------71.1确定传动方案，选择滑轮组和吊钩组---------------------------------71.2选择钢丝绳-------------------------------------------71.3确定卷筒尺寸并验算强度--------------------------------81.4初选电动机-------------------------------------------101.5选用标准减速器---------------------------------------111.6校核减速器输出轴强度-----------------------------------