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基于摇臂钻床轴向螺旋直线驱动设计毕业论文.doc

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基于摇臂钻床轴向螺旋直线驱动设计毕业论文.doc

南京理工大学毕业设计(论文)基于摇臂钻床轴向螺旋直线驱动设计南京理工大学毕业设计(论文)目录摘要..............................................................................................................................................IIIAbstract.............................................................................................................................................II1绪论...............................................................................................................................................31.1研究目的和意义..................................................................................................................31.2研究的主要内容....................................................................................................................12基本内容和技术方案......................................................................................................................13摇臂的回转设计.............................................................................................................................23.1导套的设计.........................................................................................................................23.2导套加紧块的设计................................................................................................................33.3摆动块的设计.......................................................................................................................43.4推力轴承的选择..................................................................................................................53.5旋转模型图.........................................................................................................................64.左摇臂部件设计.............................................................................................................................74.1左横臂设计..........................................................................................................................74.2导轨的设计.........................................................................................................................84.3丝杠螺母传动设计...............................................................................................................84.3.1丝杠的设计.......................................................................................................................94.3.2螺母的设计...................................................................................................................104.4丝杠安装轴承的选用和校核.................................................................................................114.5蜗杆蜗轮传动设计..............................................................................................................124.6蜗杆安装轴承的选用和校核................................................................................................134.7电机的选用.........................................................................................................................145右摇臂部件设计............................................................................................................................155.1右横臂的结构设计..............................................................................................................155.2传动轴的设计.....................................................................................................................165.3传动轴轴承的选用和校核...................................................................................................166.总结............................................................................................................................................17参考文献..........................................................................................................................................18致谢.................................................................................................................................................19南京理工大学毕业设计(论文)摘要普通钻床只能加工形体较小,结构简单的工件,而对于在特殊的加工条件下,如工件体积和重量都较大、固定不能移动等,普通钻床便很难加工,只能采用专用钻床。专用钻床是在普通机床的基础上,根据待加工工件或加工所处的特殊条件而设计制造出来的,因而能够满足特定的加工要求。水力发电机为了满足大发电量的要求一般都做的体积都比较大,重量可达几吨甚至几十吨。其安装孔不便于在车间里进行,只能在工地现场加工,所以需要设计出符合实际情况的专用钻床。我国的水电站发电机机座安装孔的加工一直依赖于进口的专用摇臂钻床,价格昂贵,加工成本较高。因此设计出我国的水电站发电机安装孔专用摇臂钻床具有重大意义。我主要针对专用摇臂钻床的摇臂部件进行研究和设计。根据此专用摇臂钻床的设计要求,摇臂要能够绕立柱摆动(360°)和直线移动(1000mm),直线移动能机动,到位后能夹紧。根据设计要求和特点,设计如下将摇臂的结构设计成双边式的,即将变速箱与主轴箱分别安装在摇臂的两边。变速箱的动力通过中空的摇臂传递给回转部件,最后传递给主轴箱。摇臂的摆动可通过在立柱外安装导套,导套与立柱上的丝杠组成丝杠螺母副,丝杠旋转,则可带动整个摇臂沿立柱上下移动。将摆动块安放在到导套上,导套与摆动块之间通过推力轴承连接。摇臂设计成左、右两个,分别位于摆动块的两侧,并以摇臂的底面与摆动块组成导轨副。导套静止,摆动块可绕导套自由摆动。导套沿立柱上下移动到位后、摆动块摆动到位后,采用液压哈弗机构将他们加紧。左摇臂内部通过丝杆螺母传动和蜗杆蜗轮传动驱动整个摇臂左右移动,右摇臂内部通过传动轴将变速箱的动力传递给回转部件。摇臂水平移动到位后通过摆动块上的液压加紧柱将摇臂加紧。关键词摇臂钻床变速箱丝杠蜗杆。南京理工大学毕业设计(论文)IIAbstractNormaldrillingmachinecanprocessisverysmall,Simplestructure。Forthespecialprocessingconditions,Suchasthevolumeandweight,Fixedcannotmove,etc。Normaldrillinganddifficultprocess,Onlyuseappropriativedrill。Specialdrillmachineisinthecommonbasisformachining,accordingtothespecificprocessingormanufacturingconditionsanddesign.Thuscansatisfythespecificrequirementsoftheprocessing.Hydraulicgeneratorsinordertomeettherequirementsofthelargevolumeofusuallydoislarger,Theweightofseveraltonsofevenafewtons.Themountingholesdonotfacilitateintheworkshop,onlyatthesite,Soweneedtodesignatallywiththeactualsituationofspecialdrill.Ourhydropowerinstallationholemachiningstandbygeneratorisalwaysrelyonimportsofradialdrillingmachine,expensivecostishigher.Designofhydropowerstationinradialdrillholespecialgeneratorinstallationisofgreatsignificance.Imajorinspecialradialdrillrockercomponentsresearchanddesign.Accordingtothespecialrequirementsoftheradialdrillingmachinedesign.Therockertoaroundthemastswing360,Straightlinemovement1000mm,Linearmotorcanmove,Afterputtinginplacetoclamp.Accordingtothecharacteristicsanddesignrequirements,designbelowThestructuredesignintotherockerwillbilateraltype,Soongearboxandspindleboxinstalledinthesideoftherockerrespectively.Thepowertransmissionthroughhollowrockertorotaryparts,Finallytospindlebox.Theswingthroughradialinstallationguideinthepost,Withtheguideoftheballscrewcomponentballscrewnutpair,Ballscrewrotation,Candrivetherockermovealongthepillar.Willswingtoguidetheblockplacedswingwith,throughthethrustbearingconnectionbetweenblocks.Therockerdesignintoleftandright,locatedintwosidesofswingingblock,Andinthebottomrockerandswingingblocksguide.Still,bushingswingingblockcanthesetoffreeswings.Movealongthepillarbushingafterputtinginplace,Swingmatedswingblock,Adoptshydraulicharvardinstitutionswillinte.Leftrockerinternalthroughwirerodnutwormandwormgeartransmissionoftheradialmovearound,Rightradialshafttransmissionthroughtheinternalmotivationtobeturningparts.Aftermovingthroughtherockerlevelpositionontheblockupswingingcolumnwillrockerhydraulicintensify.

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