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50-10t双梁桥式起重机小车主起升机构设计说明书.doc

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50-10t双梁桥式起重机小车主起升机构设计说明书.doc

毕业设计论文50/10t双梁桥式起重机小车主起升机构设计THEDESIGNOFTHESMALLCARMAINLIFTINGMECHANISMIN50/10TDOUBLEBEAMBRIDGECRANE学生姓名学院名称机电工程学院专业名称机械设计制造及其自动化指导教师2008年06月02日徐州工程学院毕业设计论文I摘要起重机械广泛应用于工矿企业、港口码头、车站仓库、建筑工地、海洋开发、宇宙航行等各个工业部门,可以说陆地、海洋、空中、民用、军用各个方面都有起重机械在进行着有效的工作。起重机械与运输机械发展到现在,已经成为合理组织成批大量生产和机械化流水作业的基础,是现代化生产的重要标志之一。在我国四个现代化的发展和各个工业部门机械化水平、劳动生产率的提高中,起重机必将发挥更大的作用。此次设计的起重机为50/10t双梁桥式起重机,主要用于各车间、分段生产线和钢材堆场等处。桥式起重机本身作横向移动,车架上的绞车作纵向移动,吊在绞车上的吊钩作垂向移动,三个方向的运动的合成才能使起重机起作用。为了防止桥式起重机在驾驶员看不清楚具体的吊钩运动方式,地面上一般配备有起重工进行指挥或夹、放吊钩。本课题主要对50/10t双梁桥式起重机的主起升机构进行总体设计,设计过程中查阅了大量国内外的相关资料,所做的设计运用了大量的专业课程。首先通过确定传动方案,选择滑轮组和吊钩组,选择合适的钢丝绳,计算滑轮的主要尺寸,确定卷筒尺寸并验算其强度,计算高速浮动轴,选择合适的电动机、减速器、制动器和联轴器。要求起重设备运行平稳,定位准确,安全可靠,技术性能稳定。关键词起重机桥式起重机起升机构设计徐州工程学院毕业设计论文IIAbstractThehoistingmachinerywidelyappliesintheindustrialandminingestablishment,theharborwharf,thestationwarehouse,theconstructionsite,theoceandevelopment,theastronauticsandsooneachindustrysector,itmaysaythattheland,thesea,airborne,civil,themilitaryeachaspecthasthehoistingmachinerytocarryontheeffectivework.Thehoistingmachineryandthetransportmachinerydevelopstothepresent,havealreadybecamethereasonableorganizationingroupsmassproductionsandthemechanizationstreamlinedproductionfoundation,itistheoneofmodernizedproductionimportantsymbols.Inourcountryfourmodernizationsdevelopmentandeachindustrysectormechanizationlevel,inlaborproductivitysenhancement,thehoistcranewillcertainlytoplaythemajorrole.Thisdesignofhoistcraneisthe50/10tdoublebeambridgetypehoistcrane,mainlyusesinvariousworkshops,thepartitionproductionlineandthesteelproductsdumpsiteandsoonplace.Thebridgetypehoistcraneitselfmakesthederailing,onframeswinchmakesthelongitudinalshift,hangsmakestheverticalmigrationonwinchslifthook,threedirectionsmovementssynthesiscancausethehoistcranetohaveaneffect.Inordertopreventthebridgetypehoistcranetolookatnottheclearconcretelifthookmodeofmotioninthepilot,assoonasinthegroundisamatchhastheheavyindustrytocarryonthedirectionortoclamp,putsthelifthook.Thistopicmainlycarriesonthesystemdesigntothe50/10tdoublebeambridgetypehoistcraneshosthoistingmechanism,designedintheprocesstoconsultthemassivedomesticandforeigncorrelationdata,didthedesignhasutilizedthemassivespecialcourses.Firstthroughthedefinitetransmissionplan,thechoiceblockandtackleandthelifthookgroup,choosestheappropriatesteelwire,calculatespulleysmaindimension,thedefinitereelsizeandcheckingcalculationitsintensity,thecomputationfloatsthemovingaxishighspeed,choosestheappropriateelectricmotor,thereductiongear,thebrakeandtheshaftcoupling.Therequesthoistingequipmentmovementissteady,thelocalizationisaccurate,safereliable,thetechnicalperformanceisstable.Keywordscranebridgecraneliftingmechanismdesign徐州工程学院毕业设计论文I目录1绪论..............................................................................................................................................11.1起重机概述............................................................................................................................11.2起重机的分类........................................................................................................................11.3起升机构介绍........................................................................................................................22起重机的国内外发展状况..........................................................................................................42.1起重机的国外发展状况........................................................................................................42.2起重机的国内发展状况........................................................................................................63桥式起重机的主要技术参数与工作级别..................................................................................83.1桥式起重机的主要技术参数................................................................................................83.2桥式起重机的工作级别......................................................................................................104传动方案的选择........................................................................................................................114.1驱动装置的布置方式..........................................................................................................114.1.1电动起升机构................................................................................................................114.1.2液压起升机构................................................................................................................115钢丝绳的选择............................................................................................................................135.1钢丝绳的特性......................................................................................................................135.2钢丝绳的种类......................................................................................................................135.2.1根据钢丝绳的捻绕次数分类........................................................................................135.2.2按钢丝绳的捻向分类....................................................................................................135.2.3根据股的形状分类........................................................................................................145.2.4根据股的构造分类........................................................................................................145.2.5根据钢丝表面处理分类................................................................................................155.2.6根据钢丝绳股数的数目分类........................................................................................155.2.7根据绳芯分类................................................................................................................155.3钢丝绳的选择......................................................................................................................156滑轮、卷筒的计算....................................................................................................................176.1卷筒的构造与类型..............................................................................................................176.1.1按钢丝绳在卷筒上的卷绕层数分类............................................................................176.1.2按卷筒的表面不同分类................................................................................................176.1.3.按卷筒的制作方法分类................................................................................................186.2卷筒、滑轮的设计计算......................................................................................................186.2.1滑轮、卷筒最小直径的确定........................................................................................186.2.2卷筒长度和厚度的计算................................................................................................186.2.3卷筒转速........................................................................................................................19

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