采煤机牵引部设计说明书.doc

编号：（）字号本科生毕业设计题目：姓名：学号：班级：二八年六月采煤机牵引部设计机械工程及自动化专业04-2摘要G400/900-WD型采煤机是一种多电机驱动，横向布置的交流电牵引采煤机。该机功率大，多电机横向布置，整机结构紧凑，采用交流变频调速系统，变频调速采用机载式。截割电机、牵引电机等主要元部件均可从采空区抽出，容易更换，方便维修。牵引电机输出的转矩经三级圆柱齿轮和二级行星齿轮减速器减速后，由行星架输出，通过驱动轮与行走轮相啮合，再由行走轮与工作面刮板输送机上的齿轨啮合使采煤机来回行走，同时制动轴输出轴通过键与制动器相连，实现电牵引部的制动。左右牵引部，中间电控箱的联结螺柱，定位销，摇臂与左右电牵引部铰接销轴四组，这些装置将采煤机各大部件联接成一个整体，起到紧固及连接的作用。牵引部与行走部做成一体，使机身整体尺寸紧凑，缩小了机身宽度。G400/900-WD型采煤机，操作方便，可靠性高，事故率低，开机效率高，可满足高产高效工作面的需要。关键词：采煤机；牵引部；行走部；行星齿轮ABSTRACTTheG400/900-WDcoalminingmachineismorethanonekindofmotor-driven,crosswisearrangementalternatingcurrenthaulingcoalminingmachine.Thismachinepowerisbig,themulti-electricalmachinerycrosswisearrangement,thecompletemachinestructureiscompact,usestheexchangefrequencyconversionvelocitymodulationsystem,thefrequencyconversionvelocitymodulationusesaircraft-borne-like.Cutstheelectricalmachinery,thepullingmotorandsoonmainparttobepossibletoextractfromtheworked-outsection,easytoreplace,facilitatestheservice.Thepullingmotoroutputstorquedeceleratesafterthethird-levelcylindricalgearsandthesecond-levelplanetgearreductiongear,bytheplanetcarrieroutputs,withwalksliningonthefeetandpalmsofbuddhameshingthroughthedrivinggear,bywalksagainroundandonworkingsurfacescraperconveyersrackrailmeshingcausesthecoalminingmachinebackandforthtowalk,simultaneouslythebrakespindleoutputshaftisconnectedthroughthekeyandthebrake,realizestheelectricityhaulingdepartmentbrake.Aboutthehaulingdepartment,themiddleelectricallycontrolledboxsjointstud,thepositioningpin,therockingshaftsellstheaxisfourgroupswithaboutelectricityhaulingdepartmenthinge,theseinstallmentsjoincoalminingmachinevariousmajorassembliesawhole,playsthefasteningandtheconnectionrole.Thehaulingdepartmentwithwalkstomakeabody,causedthefuselageoverallsizetobecompact,reducedthefuselagewidth.TheG400/900-WDcoalminingmachine,theeaseofoperation,thereliabilityishigh,theaccidentrateislow,thestartingefficiencyishigh,maysatisfythehighproductionhighlyeffectiveworkingsurfacetheneed.Keyword:Thecoalminingmachine；thehaulingdepartment；walks；Planetgear目录1概述.11.1采煤机的发展概况.21.2国际上电牵引采煤机的技术发展状况.31.3国内电牵引采煤机的发展状况.41.3.1.20世纪70年代是我国综合机械化采煤起步阶段.41.3.2.20世纪80年代是我国采煤机发展的兴旺时期.51.3.3.20世纪90年代至今是我国电牵引采煤机发展的时代.61.4采煤机的发展趋势.81.5采煤机类型.81.6采煤机的组成.121.7电牵引采煤机的优点.132牵引部的设计.152.1牵引机构传动系统.152.1.1主要技术参数.152.1.2电动机的选择.162.1.3传动比的分配.162.2牵引部传动计算.182.2.1各级传动转速、功率、转矩.182.3牵引部齿轮设计计算.192.3.1齿轮1和惰轮2的设计及强度效核.192.3.2齿轮3和惰轮4的设计及强度效核.252.3.3齿轮5和惰轮6的设计及强度效核.312.4牵引部行星机构的设计计算.362.4.1行星齿轮的计算.382.4.2行星轮啮合要素验算.503轴的设计及校核.543.1确定轴的最小直径.543.2轴的校核.573.3花键的强度校核.643.4轴承的校核.664采煤机的使用和维护.684.1采煤机的维护.684.2采煤机轴承的维护及漏油的防治.70