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MDL-50A型锚固钻机使用说明书-1-MDL-50ADrillingRigOperationChinaistheworldsfirstnationalmachinerydevelopment.ChinesemechanicalengineeringtechnologynotonlyhasalonghistoryandsplendidachievementsinChineseisnotonlythematerialcultureandsocialeconomicdevelopmentplaysanimportantroleintheworld,andhasmadegreatcontributiontopromotetheprogressoftechnologycivilization.Machineinthetraditional,ourcountrywithinalongperiodareleadingintheword.Inmoderntimes,especiallyfromtheearly18thcentury,tothe19century40s,duetotheeconomicandsocialandmanyotherreasons,themachineryindustryofChinesewasstagnation,butthe100yearsiswesternbourgeoispoliticalrevolutionandindustrialrevolutiontime,mechanicalscienceandtechnologyisdevelopingrapidly,andfarmorethanthelevelofChina.So,Chinamechanicaldevelopmentlevelandthewesterngapwidens,tothe19thcenturymiddle,ourcountryalreadybehindwesternmorethanonehundredyears.Overthepast40years,roofbolterofChinaaredevelopingfromnothing,insomeplacesroofbolterwerealsocalledanchorrig,thevarietiesfromtheoriginalsingletovariety,fromsinglepowertomultiplepower.Ourcountrysuccessivelyhasdevelopedamechanicalsupportlegtypeelectricroofbolter,drillroofbolter,supportinglegandtheguiderailtypehydraulicpressureroofbolter,supportinglegtypepneumaticroofbolter,non-mechanicaltransmissionsupportlegelectricroofbolter,airborneroofbolteranddouble-stageAir-legdrilletc.Accordingtothemainpowersource,roofbolterhastwokinds-Pneumaticandhydraulic.Butelectro-hydrauliccombinationwillbethetrendofitsdevelopment.Overthepast40years,roofbolterofChinaaredevelopingfromnothing,insomeplacesroofbolterwerealsocalledanchorrig,thevarietiesfromtheoriginalsingletovariety,fromsinglepowertomultiplepower.Ourcountrysuccessivelyhasdevelopedamechanicalsupportlegtypeelectricroofbolter,drillroofbolter,supportinglegandtheguiderailtypehydraulicpressureroofbolter,supportinglegtypepneumaticroofbolter,non-mechanicaltransmissionsupportlegelectricroofbolter,airborneroofbolteranddouble-stageAir-legdrilletc.Accordingtothemainpowersource,roofbolterhastwokinds-Pneumaticandhydraulic.Hydraulicroofbolterismainlycomponentofthemediumofhydraulicoilandthedriveactuatorwitchisincludingcylinderandmotor.Pointingfromthewalkinginthedomesticthehydraulicroofboltermainlyhastwokindsskidandcrawler.StructureofskidhydraulicRoofbolterissimple,butthestrengthishigher,operationissimple,manufacturingcostisrelativelylow.SuchasWuxidual-fanproductionofYG-80,ChengduHammaproductionofYXZ-70,ChongqingprospectingplantproductionofMGJ-50etcHolingmaintechnologyisdoubleeccentric,commonlyusedindrillpipeis73,89,accordingtodifferentdesignofjackettubedrillpipecommonlyuse108,127,146etcspecifications.Theyneedtobeequippedwithproperaircompressortodrivenimpactpower,becausethebottomofimpactalwaysroleinthehole,sooftenbecalledasblow.Anti-floatinganchor,excavation,soilnailwallsupportarewidelyusedinworkersoftheconstructionprocess.Buttheyaremovingheavy,functionsingle,andincreasedwiththeprocessingcosts,muchhigherandhigherbuildings,thiskindoftypehasbeenunabletomeettheneedsofthemarket.Soanchorboltdrillandtrackedautomaticallywalkinggotquicklydevelopment.Inthedomestictherearemanytypesofthecrawlerroofbolter,whichfeaturesinthemainpowerheadadoptsthehightorquemotordrive,speedrangeusuallyisvariablespeed.Theyaregreatlyimprovingtherigperformance.ThetrackisdrivenbyMDL-50A型锚固钻机使用说明书-2-ahydraulicmotor,whichmadethedrillingmachinemoreflexibilityandreducesthecomplexoftheartificialjoint.Thistypeofdrillalsoadoptedtheattackmode,suchastheOrientalindustrialproductionofDF-3000,XuanhuaIngersoll-RandproductionofCM-351.Thistypeofdrillsamewiththeslidedrillonthepullingsleevealsoneedbeequippedwithauxiliaryequipmentandotherauxiliaryequipment.InChinathereisakindofdoubleanchorrigpowerheadroofbolter,characteristicofthiskindofdrillrigisdrillpipeandcasingaredrivenrotationbyeachpowerhead,anddonotinfluenceeachother,pullcasingcanbedoneautomaticallybythemachine.Everyrigallhavetheyownoperationmanual.ThefollowisMDL-50ADrillingRigoperationmanual.1.PrefaceThecompanyhasadopteditslatestassemblingtechnologyforallmainpartsandcomponentsofthisproduct.Andtherigiscompletedwithchassisforpretrialandpipewrenchandotheraccessories,whichthere-designedfullynewhydraulicsystemincorporatesintooneentity.Keyelementsareallrenownedbrandseitherlocalorimported,andarefullyhydraulicallycontrolledanddisplayedthroughinstruments.Thedrillingrigiseasyandflexibleofoperationandhashighworkingefficiencyandsowellmeetstherequirementsbythecustomer.MDL-50ADrillingRigisanewtypefullyhydrauliclong-strokeanchoreddrilling-rigforengineeringpurposesdevelopedandmanufacturedbyJiangsuWuxiMineralExplorationMachineryGeneralFactoryCo.LTD(formerlyJiangsuWuxiMineralExplorationMachineryGeneralFactory).MDL-50ADrillingRigisahydraulicallycontrolled,anchoredpowerheadengineeringdrill.Itsoverallweightisunder4000kg,ismainlyfortheanchoringengineeringofcoastanddangerousrock/cliffmassforgeologicaldisasterpreventionactivity,andtheanchoringengineeringofrockbodyetctocontroldisplacementofbuildings,andalsoforsupportingofdeep-foundationpitandgroundworkreinforcingengineeringinurbanconstructionsite,forblowingupengineeringorblowingupholeetc.ButtheDrillingRigisntsuitableforanchoringengineeringofhigh-edgeslopeordangerousrockbody.MDL-50ADrillingRigpossessesthecharacteristicsofstableperformance,highworkingefficiency,multiplyusage,aswellasthecapabilityofdrillingsophisticatedstratumandhandlingaccidentsetc.Thisdrillingrig,deployedbycommonalloydrilltoolsorotherdrilltools,canperformrevolving-and-drilling.Intherigidrockstratum,thedrillingrigdeploysthespheroiddrillbittoperformstrikingandrevolvinganddrillingtohavehigh-speed-boredhole;ifdeployedwithair-compressorandpneumaticin-the-holehammer,andacceptedthecannula-followeddrilltools,thedrillingrigcandrilltheholewithcannulatogetherinthoseunstablestratumsuchasconglomeratestratum.Followingarethemainfeaturesofthedrillingrig:1)Compactinstructure,fullyhydraulicallycontrolled,easyandflexibleofoperationandeasytomove,goodmobility,time-savingandenergy-saving.2)Fittedwithexclusivedrillingfollow-updevices(drillrod,thimble,andeccentricdrillbitetc).Whendrillinginunstablestratumthimblecanbeusedatcollaringandtheholecanbefinishedwithconventionalballteethbittoachievegooddrillingefficiencyandgoodqualityholes.MDL-50A型锚固钻机使用说明书-3-3)Optimizedheatdiffusionsysteminthelightofcustomersplantconditionstoensurethatthemaxtemperatureinthehydraulicsystemdoesnotexceed70whenoutdoorstemperaturereaches50.4)Powerheadofthedrillingrighasbigtorqueandlongstrokewithhighdrillingefficiency,whichgreatlyenhancesworkingefficiency.Fittedwithdevicesformechanicallymounting/dismountingdrillingrodtoreducetheoperatorslaborintensity.2.TechnicalSpecificationMaindrillingmodeofthisproductis:conventionaldrilling,alloybitdrilling,andspiraldrilling1)Holedia.(mm):85-1602)Holedepth(m):40-604)Boringangle():-15-905)Ratedspeed(r/min):12、25、45、60、90、1256)Ratedliftcapacity(kN):42.5kN7)Ratedpulldowncapacity(kN):25kN8)Feedstroke(mm):18009)Dynamic:Motor,18.5kw+11kw+1.5kw10)Weight(kg):400011)Shape(LWH,mm):42002000720012)Plumbcondition:38001800360013)Transportstate:3800180020003.StructureoftheDrillingRigMDL-50Adrillingrigcomprisesofthefollowingmaincomponents:(1)ThepowerassemblyThepowermoduleismadeupofthreeelectricmotorswhichrespectivelydrivethreesetsofpumps.Amongthem,onegroupisadoublegearpump.Thebigoneisresponsiblefordrillingquicklyofthedrill;andthesmalloneisresponsibleforthemovementandthesupportofonesideofcrutchaswellasthemedium-speed,low-speeddrilling.Onesetofpumpisresponsibleforthemovementandthesupportofanothersideofcrutchandthemedium-speeddrillingaswellasthequicklyliftofthepowerhead.Thelastsetofpumpisresponsiblefortheriseofthetower.Whenyoustartoperatingthedrill,youshouldnoticetherotateddirectionofthreeelectricmotors,itsturningshouldbeidenticalwiththeredarrowonthepumporthebackshellofthemotors,orthedrillcantworknormally.(2)ThepowerheadassemblyPowerheadofMDL-50AtypedrillingrigisdrivenbyDoublehydraulicmotorthroughgearboxtransmissionandspeedregulating,anditdrivesthemainshaftandforeenddrillingrodconnectiontoturninpositive/reversedirections,therebydrivingthedrillingbitsbelow.Inthepowerheadboxisstoredgearoil.Wheninoperationbesuretochecktheoillevelfromtimetotimetoseethereissufficientoil.Onthesideoftheboxisfittedanoillevelthreadedplug.Justbyraisingthemasttoverticalpositionandlooseningtheoillevelscrewyoucanchecktheoillevel.Theup/downmotionofthepowerheadiseffectedbytherollerassemblybeneathit,whichisdrivenbyMDL-50A型锚固钻机使用说明书-4-thechains.Afterthedrillingrighasworkedforaperiodoftimetherewillbeacertainamountofrockingmotionbecausetherollerassemblywillhaveworn.Nowisthetimetoloosenthelockingnutandturnthefixingscrewoftherollerassemblytoadjusttheslidingclearancebetweenthebottomandtheside,thenre-tightenthenut.Onlybesureyoudonottightenthewear-resistantplateexcessively.(3)ThepropellingrackassemblyThisassemblyispartoftheorifice-supportingdevice,powerheadassemblyandpressurizingelevationassembly.(4)ThepretrialchassisWiththepretrialfittedonitispossibletoeffectthedrillingrigsforward/backwardmovementandturningandlevelingthroughcontrollingtheproportionalpump.andthatiswhythedrillingrigcanmoveeasily,hasgoodmobilityandistime-savingandenergy-saving.(5)ThehydraulicsystemWorkingoilpumps,valves,executionelementsandpipe-fittingsofthehydraulicsystemofMDL-50drillingrigaremostlyimportedfinequalityparts,ensuringagoodworkingperformance.(6)TheelectricalsystemAsthedrillingrigisnotequippedwithpowergeneratoranexternalthree-phaseACpowersupplyhastobeconnectedtothecontrolcabinet.Themotorisstartedintheplanetarytrianglemodeforthesakeofreducingstartingcurrent.Totalinputpoweroftheelectricalcabinetis45kW.Thecabinetisfittedwithleakageprotectionswitchassafetydevice,whichalsoservesasexcessivevolt

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