东北林业大学毕业设计设计题目：桥式起重机小车设计学生：李铎指导教师：孟春副教授学院：工程技术学院专业：森林工程2008级3班2012年6月16日桥式起重机小车设计摘要根据机械设计标准和起重机设计标准及各零部件的选择标准，依据所给参数和具体工作环境，设计出了桥式起重机小车各个机构。起升机构采用电动机驱动，布置方式采用电动机轴与卷筒轴平等布置。小车运行机构主动轮采用对面布置方式，集中驱动。各零部件间采用具有补偿性能的齿轮联轴器连接，带制动轮的联轴器安装在减速器的高速轴上，这样，即使联轴器被损坏，制动器仍可将卷筒制动，确保机构安全。为使起升机构布置方便并增大补偿能力，在电动机与减速器之间采用浮动轴连接。带制动轮的半齿联轴器和制动器靠近减速器，万一浮动轴被扭断，制动器仍可以制动住卷筒。小车架有两根端梁和两根横梁组成，端梁焊接成箱形，在端梁与横梁上边焊有钢板，钢板上在安装电动机、减速器、制动器和轴承座的地方焊有垫板。关键词：桥式起重机；起升机构；小车运行机构；小车架TrolleybridgecranedesignAbstractAccordingtothemechanicaldesignstandardsanddesignstandardsforcranesandotherpartsoftheselectioncriteria,basedonthegivenparametersandthespecificworkingenvironment,thedesignofthebridgecranecaragencies.Liftingbodiesusingmotor-drivenlayoutwiththeuseofmotoraxisequalaxisreellayout.Cardrivingwheelusedtoruninstitutionsacrossthelayout,concentrateddrive.Betweenthevariouscomponentsofcompensationwiththeperformanceoftheuseofthegearcouplingtoconnectwiththecouplingwheelbrakeinstalledontheaxisofhigh-speedreducer,sothatevenifthecouplinghasbeendamagedcanbebrakedrumbraketoensurethatsecurityagencies.Inordertofacilitatethehoistingmechanismandincreasethecompensationarrangementofcapacitybetweenthemotorandreducerwithfloating-axisconnection.Semi-roundwithbrakeandbrakegearcouplingnearthereducer,ifthefloating-axishasbeenbroken,brakescanstillbrakedrumlive.Therearetwosmallframesidebeamsandtwobeamsoftheclientintoabox-beamwelding,intheendbeamandthebeamsareweldedtopplate,steelplateinstalledonthemotor,reducer,brakeandbearingarethelocalweldingplate.Keywords:bridgecrane;hoistingmechanism;carruninstitutions;smallframe目录摘要AbstractTOC\o"1-2"\h\z\uHYPERLINK\l"_Toc106859474"1绪论PAGEREF_Toc106859474\h1HYPERLINK\l"_Toc106859475"对起重机研究的意义PAGEREF_Toc106859475\h1HYPERLINK\l"_Toc106859476"国内外起重机发展PAGEREF_Toc106859476\h1HYPERLINK\l"_Toc106859477"本设计的内容PAGEREF_Toc106859477\h2HYPERLINK\l"_Toc106859478"2起升机构的设计计算PAGEREF_Toc106859478\h3HYPERLINK\l"_Toc106859479"钢丝绳的选择PAGEREF_Toc106859479\h3HYPERLINK\l