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轮心堆焊机总体方案及减速器设计论文[带图纸].doc

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轮心堆焊机总体方案及减速器设计论文[带图纸].doc

编号无锡太湖学院毕业设计(论文)题目轮心堆焊机总体方案及减速器设计信机系机械工程及自动化专业学号学生姓名指导教师(职称副教授)(职称)2013年5月25日无锡太湖学院本科毕业设计(论文)诚信承诺书本人郑重声明所呈交的毕业设计(论文)轮心堆焊机总体方案及减速器设计是本人在导师的指导下独立进行研究所取得的成果,其内容除了在毕业设计(论文)中特别加以标注引用,表示致谢的内容外,本毕业设计(论文)不包含任何其他个人、集体已发表或撰写的成果作品。班级机械93学号0923112作者姓名2013年5月25日II摘要机车轮心是指车轮与车轴配合的部分,它是列车的重要牵引传动部件。轮心内孔与车轴为过盈配合,采用热涨法装配。在这种条件下,列车行走时轮心内孔与车轴无相对运动、无磨损。当出现更换轴或维修车轴上零件等情况时,需要将车轮解体,此时车轴将从轮心内孔中被强行压出,孔轴配合面就会被破坏。为使轮轴达到可工作的状态,轮心内孔面需堆焊及机加工,恢复内孔外形及表面的光洁度。本文所设计的堆焊机减速器就用于此工序。轮心堆焊机主要由动力头、尾架、焊接小车、底座、导轨及控制箱六大部分组成。本文所设计的减速器属于该堆焊机的动力头的一部分。本文所设计的轮心堆焊机减速器,工作重点在于传动机构和轴的设计。工作的首要目的是满足基本的使用性能,其次是在此基础上尽量减少减速器的体积和重量使其结构紧凑、加工制造方便。动力头减速器构造有很多种类,本文首要满足的性能指标是速比和强度,之后再从装配方便、缩小体积、降低成本等方面加以考虑。设计后的减速器应具有容易生产、结构简单、可靠实用、安装方便、成本低的特点。关键词轮心,堆焊机,减速器,动力头。IIIAbstractThemotorcycleroundheartmeansthepartmatchingwithaxlecarwheel,itistheimportanceoftherailroadtraintoleadtospreadaparts.RoundboreinsidetheheartandaxleinordertoleadYingtomatchwith,justrisemethodassemblewiththeheat.Inthiscase,therailroadtrainrunsaboutroundboreinsidetheheartwithaxlehavenooppositesport,dontwearaway.Whileappearingtoreplacestalkormaintainingcircumstanceslikespareparts,etcofaxle,needtodisintegratecarwheel,atthistimeaxlewillfromtheroundtheboreinsidetheheartdrivestronglineofpressout,theborestalkmatchnoodleswillbebroken.Inordertomaketheaxleattainthestatusthatcanwork,theroundborenoodlesinsidetheheartneedsaheapofHanandmachinetoprocessandresumesinsidethecleandegreeoftheboreshapeandthesurface.TheheapHanmachinedesignedbythistextdeceleratesamachinetousedforthisworkpreface.RoundtheheartheapHanmachinemainlyfrompowerhead,tail,weldasmallcar,baseandleadtrackandcontrolboxsixgreatestpartstoconstitute.ThedecelerationmachinedesignedbythistextbelongstoapartofthepowerheadoftheheapsHanmachine.TherounddesignedbythistexttheheartheapHanmachinedeceleratemachine,workBeparticularlylieinspreadingmotivetoreachandstalkofdesign.Theinitialpurposeoftheworkissatisfybasicusefunction,secondlyisonthisfoundationasfaraspossibledecreasedeceleratemachineofphysicalvolumeandweightmakeitsstructuretightlypacked,processtomakeconvenient.Powerheaddecelerationmachinethestructurecontainalotofcategories,thetextinitialcontentedfunctionindexsignissoonratioandstrength,afteragainfromassemblebeenconvenience,narrowaphysicalvolumeanddeclinelowcostetc.totakeintotoconsider.Itiseasytoshouldhavethedecelerationmachineafterdesigningproduction,simplestructure,credibilitypractical,installacharacteristicswithconvenientandlowcost.Keywordsroundheart,heapHanmachine,decelerationmachine,powerheadV目录摘要............................................................................................................................................IIABSTRACT..................................................................................................................................III目录............................................................................................................................................V1绪论.............................................................................................................................................11.1本课题的研究内容和意义...................................................................................................11.2国内外的发展概况...............................................................................................................11.3本课题应达到的要求...........................................................................................................32轮心堆焊机的主要技术.............................................................................................................42.1堆焊.......................................................................................................................................42.2轮心堆焊...............................................................................................................................43总体方案的选定与设计.............................................................................................................63.1初选电动机类型和结构型式...............................................................................................63.2电动机的容量.......................................................................................................................73.2.1确定减速器所需的功率P...........................................................................................73.2.2确定传动装置效率.........................................................................................................73.2.3电动机的技术数据.........................................................................................................84传动装置的传动比及动力参数计算.........................................................................................94.1传动装置运动参数的计算.................................................................................................94.1.1各轴功率计算.................................................................................................................94.1.2各轴转速的计算.............................................................................................................94.1.3各轴输入扭矩的计算.....................................................................................................95减速器部件的选择计算...........................................................................................................105.1蜗杆传动设计计算...........................................................................................................105.1.1选择蜗杆、蜗轮材料..............................................................................................105.1.2确定蜗杆头数Z1及蜗轮齿数Z2...........................................................................105.1.3确定蜗杆蜗轮中心距a...........................................................................................105.1.4蜗杆传动几何参数设计............................................................................................115.1.5热平衡计算................................................................................................................135.2环面蜗轮蜗杆校核计算.....................................................................................................135.3轴的结构设计.....................................................................................................................155.3.1蜗杆轴的设计..............................................................................................................155.3.2蜗轮轴的设计..............................................................................................................17

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