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1、中文题目：龙门式起重机总体设计及金属结构设计外文题目：DragonGateCranesdesignandmetalstructuredesign毕业设计（论文）共页（其中：外文文献及译文02页）图纸共2张摘要：起重运输机金属结构主要构件所用的材料有普通碳素钢，优质碳素结构钢，普通低合金钢，合金结构钢。金属结构的支座常用铸钢。金属结构的联分为焊接和螺栓联接两大类。关键词：起重机，金属结构，承载能力，疲劳强度，强度。SummarySincethereformandopeningup,withtherapiddevelopmento
2、fthenationaleconomy,thegrowingmarketdemandforcranes.Inrecentyears,thecraneindustryhasbeenaroundfor15%growthrate,rapiddevelopment,theownershipofcomponentscraneindustryhasundergonetremendouschanges,withtheexceptionofstate-ownedprofessionalcraneplant,collective,jointve
3、ntures,investmentandprivatedevelopmenthasbeenrapid.Promoteresearchtoimproveproductivityandproductquality,reducecostsandexpandthescopeofapplicationofthevariousfieldcranesandcranetechnologydevelopmentdirections.Currentandemerginghigh-performancesuccessionprocess,theca
4、pacitytoadapttotheworkingenvironment,supportsastrongabilitytofunction,toresistfatiguestrengthtoresistbendingperformanceandtheperformanceofrefinedperformance,colleges,andeconomiccranedesignnewmethods.AlthoughChinesecraneindustryinthepast10yearshasmaderemarkableprogre
5、ss,butwithmanyindustrylagsfarbehinddevelopedcountries.Currently,themajorlifttransportaircraftstructuralcomponentsusedinthemetalmaterialswithordinarycarbonsteel,qualitycarbonstructuralsteel,lowalloysteelordinary,alloystructuralsteel.Commoncaststeelbasemetalstructure.
6、Metalweldingandboltsintothestructureofthelinksintwobroadcategories.keywordS:Cranes,metalstructure,carryingcapacity,fatiguestrength,intensity目录2龙门式起重机设计的总体设计方案………………………………52.1龙门起重机总体设计所需的基本参数……………………………………52.2起重机的选型…………………………………………………62.2.1起重机基本型式的选择…………………………………………6
7、2.2.2起重机主要性能指标的选择………………………………………63起重机金属结构设计………………………………………………73.1金属结构概述……………………………………………………73.2箱形结构门架强度计算……………………………………………83.2.1金属结构的基本参数选择与设计计算…………………………103.2.2主减速器的润滑…………………………………………………163.3驱动桥-差速器……………………………………………………183.3.1对称式圆锥行星齿轮差速器的基本参数选择与设计计算……193.4驱动桥-半轴………
8、………………………………………………253.4.1全浮式半轴的设计计算与校核…………………………………253.5驱动桥-桥壳………………………………………………………283.5.1钢板冲夺焊接整体式桥壳的受力分析及强度计算……………294总结……………………………………………
