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英文原文THEVERTICALBOOMTYPEROADHEADERDESIGN1INTRODUCTIONMECHANICALDESIGNISINTHEPROCESSOFPRODUCTDESIGNANDANIMPORTANTPARTOFTHEMAINLINKS,ITISFOLLOWEDINPROGRAMMEDESIGNAFTERTHEDESIGNWORKTHEVERTICALBOOMTYPEROADHEADERTHEROADHEADERTOTHEOVERALLDESIGNOFTHEMERITSOFCOMPLETEMACHINEPLAYADECISIVEROLE,ANDTHEDECISIONOFTHEASSEMBLY,THESYSTEM,COORDINATIONBETWEENTHEVARIOUSCOMPONENTSOFTHEUNITYANDMATCH,TOOBTAINTHEHIGHENDPERFORMANCEANDOVERALLBETTERECONOMICEFFICIENCYTECHNOLOGYROADHEADERDESIGN,INCLUDINGTHEFOLLOWING1ACCORDINGTODESIGNPROJECTDESCRIPTIONCHOICETYPEANDVARIOUSCELLULARCONSTRUCTIONPATTERN2DECIDESTHECOMPLETEMACHINETHEMAINTECHNICALPERFORMANCEPARAMETER,INCLUDINGSIZEPARAMETER,HEAVYPARAMETER,THEPARAMETEROFMOVEMENTANDTHETECHNICALECONOMYREFERPARAMETER,3ACCORDINGTOSYSTEMDESIGNPERFORMANCEREQUIREMENT,DEFINITECOMPLETEMACHINESYSTEMCOMPOSITIONANDBETWEENTHEMMATCHASWELLASEACHPARTMAINTECHNICALSENATEPARAMETER,4THENECESSARYWHOLE,ANDTHEMAPPINGOFTRANSMISSION,HYDRAULIC,ELECTRONICCONTROLSYSTEMS,ANDOTHERPLANS2THESELECTEDMODELSANDVARIOUSCOMPONENTSANDSTRUCTURALTYPE,DRIVE,ANDTHEOVERALLLAYOUTOFTHEREASONABLEINDETERMININGTHECONTENT,FIRSTTASKSHOULDBEDESIGNEDTOMEETTHECONTENTS,ESPECIALLYTHEUSERSOFTHEMAINDEMANDSOFTHEINVESTIGATION,THETWOSIDESEXCHANGEDVIEWSREPEATEDLY,TOSATISFYBOTHUSERSORSUPERIORCONDITIONS,CANBETTERMEETTHEPRODUCTDEVELOPMENTOFTHEOVERALLPLAN21THESELECTEDMODELSACCORDINGTOROADHEADERUSE,FORTHECOALMINETUNNELBORINGORUSEDFOROTHERSECTORSOFTHEWORKS,ROADHEADERWORKINGCONDITIONSFORCUTTINGCOALROADWAYORSEMICOALLANE,THECOMPRESSIVESTRENGTHOFCOALANDROCKONEWAYORTHEVALUEOFPLATTSCOEFFICIENTFANDTHEROCKABRASIONFACTORATTHESAMETIMETHECONTROLLINESHOULDBESUPERSCRIPTMT1381995CANTILEVEREDROADHEADERTYPESANDPARAMETERS,ACCORDINGTOCUTTINGCOALANDROCKTHEBIGGESTONEWAYCOMPRESSIVESTRENGTH,THETYPEOFSELECTEDMODELS22THESTRUCTUREOFTHEVARIOUSCOMPONENTS,THEWAYTHEDRIVERIDENTIFIEDROADHEADERBYCUTTINGGENERALAGENCIES,SHIPPINGAGENCIES,WALKING,HYDRAULICSYSTEM,ELECTRONICCONTROLSYSTEMSANDAUXILIARYDEVICESSUCHASDUSTREMOVALDEVICES,SECURITYDEVICES,REMOTEMONITORINGDEVICESANDOTHERCOMPONENTS1CUTTINGAGENCIESCUTTINGTHEDRIVEFROMACMOTORDRIVEN,INTHETRANSMISSIONSYSTEMLOCATEDINTHEGENERALPROFILECOUPLINGWITHNOMECHANICALOVERLOADPROTECTIONDEVICE,THETWOPLANETSREDUCERDRIVENSPINDLEFRONTOFTHECUTTINGHEADSOMESECTIONSOFTHEWORKINGBODIESBORINGMACHINEHASCUTCHAIN,DISCMILLINGANDCUTTINGSUCHASCANTILEVERCANTILEVERDUETOTHECUTTINGBORINGMACHINEBODYFLEXIBLE,RELATIVELYSMALL,CANCUTAVARIETYOFSHAPESANDSECTIONSOFTHEROADWAY,ANDTOACHIEVESELECTIVECUTTING,BUTCUTTINGGOODEFFECT,AHIGHERRATEOFBORING,SONOWUSEDMAINLYCANTILEVERCUTTINGANDHASBECOMEBORINGMACHINEWORKINGBODYOFABASICPATTERNBYCUTTINGHEADOFTHELAYOUT,ISDIVIDEDINTOHORIZONTALANDVERTICALAXISOFTHETWOTHELINECUTTINGHEADOFTHEADVANTAGESARETRANSMISSIONCONVENIENT,COMPACTANDCANBECUTTOANYSHAPEOFTHEPROFILE,EASYACCESSTOTHEFORMATIONOFACROSSSECTIONANDISCONDUCIVETOEXPANSIONINTHEUSEOFCANTILEVER,ORDITCHDIGGING,INWATERLOOCUTTINGHEADTHESHAPEOFACYLINDRICAL,CONEANDTHECONEANDCYLINDRICAL,ASTHELATTERTWOCUTTINGHEADTODRILLING,ANDTHECUTTINGSURFACETHANTHEFORMATION,USEITMORETHISISTHEWORKOFTHESHORTCOMINGSASTHELONGITUDINALAXISOFCUTTINGHEADINTHEHORIZONTALSWINGATTHECUTTINGREACTIONFORCEISNOTPASSEDMACHINECENTRES,WITHCANTILEVEREDFORMOFTORQUETOBORINGMACHINEHAVEAGREATERVIBRATION,STABILITYISPOORTHEREFORE,THECOALROADWAYEXCAVATION,THENEEDTOINCREASETHEBODYWEIGHTORSUPPORTTHEINSTALLATIONOFAUXILIARYEQUIPMENTATPRESENT,SUCHABORINGMACHINEINSOMESECTIONSOFTHEUSEOFMOREBORINGMACHINE2SHIPMENTOFBODIESITGENERALLYFROMTHEMIDDLELOADINGANDCONVEYORCOMPONENTSTHEYWEREDRIVENORFOCUSMAYBELINKED,EITHERBYACMOTORDRIVE,CANALSOBEUSEDHYDRAULICMOTORDRIVETRAILINGCLAWISTOUSEATURNMOVESTHERAKECLAWSTOCONTINUETORAKEMATERIALSANDINAREPRINTFROMTRANSPORTOPERATORSTHISSTRUCTUREISSIMPLE,RELIABLE,SMALLFORMFACTOR,LOADINGGOODEFFECT,THEAPPLICATIONISWIDESPREADHOWEVER,SUCHINSTITUTIONSLOADINGWIDTHRESTRICTEDBECAUSEBORINGMACHINERUNNINGTRACKWHENAGENCIESGENERALLYDONOTAROUSETOEXPANDTHELOADINGWIDTH,WILLSHOVELTHEENTIREHARROWBOARD,TOGETHERWITHTHECLAWAGENCIESINTHELEVELOFSWING,ORDESIGNDUALRAKECLAWS,TOEXPANDTHESCOPEOFLOADINGINSTITUTIONSTHANTHERAKEWHEELCLAWSIMPLE,HIGHINTENSITY,RELIABLE,BUTWITHLESSBULKMATERIALSLOADINGAGENCYPROGRAMMEISNOTONLYTHEINSTALLATIONOFTHECLAWRAKEWHEELCANALSOBEINSTALLED,THETWOCANBEUSEDINTERCHANGEABLYUSUALLY,THECHOICERAKECLAWLOADED,BUTCONSIDERINGLOADINGWIDTHOFTHEPROBLEM,MAYCHOOSETODOUBLERAKECLAWS,CANALSOBEDESIGNEDTORAKECLAWROUNDINTERCHANGEABLEWITHTHELOADINGMECHANISMSOMESECTIONSBORINGMACHINEUSEOFSCRAPERCHAINCONVEYORAGENCIESTRANSPORTATIONAGENCIESAREGENERALLYUNDERTAKENBYTHETAILTOTHENOSETILTEDUPWARDDIRECTIONOFTHELAYOUTTRANSPORTATIONAGENCIESCANBETHEDRIVER,ISABOUTTOMOTORORHYDRAULICMOTORANDREDUCERLAYOUTINTHESCRAPERCONVEYORANDAROUNDTHESIDEOFTHEFUSELAGE,THEBODYINTHEDRIVERLOADINGATTHESAMETIME,INDIRECTLY,TOTRANSPORTBODIESTOTAKETHEINITIATIVETOTHETAILSHAFTDRIVENSCRAPERTRANSPORTATIONAGENCIESTHISDRIVESYSTEMCOMPONENTSINSMALL,RELATIVELYSIMPLEBODIES,BUTLOADINGANDTRANSPORTATIONAGENCIESINVOLVEDINTHETWOCAMPAIGNS,MUTUALINFLUENCEASTHELOCATIONLESSSPACELAYOUTMOREDIFFICULTTRANSMISSIONORGANIZATIONSTOADOPTANINDEPENDENTDRIVER,ISABOUTTOMOTORORHYDRAULICMOTORLAYOUTAWAYFROMTHEMACHINESIDE,DRIVENBYSLOWDELIVERYAGENCIESTHISMODEOFTRANSMISSIONDRIVELAYOUTSIMPLE,ANDFILLINGTHECAMPAIGNHUBUYINGXIANGHOWEVER,DUETOTRANSMISSIONANDMOREDYNAMICCOMPONENTS,THEPOINTOFFAILUREHASINCREASEDATPRESENT,THETWOTRANSPORTATIONAGENCIESAREUSED,ASAPPROPRIATE,THEDESIGNSHOULDBEIDENTIFIEDGENERALLOADINGANDINSTITUTIONSOFTENUSETHESAMEDRIVELOADINGAGENCIESCANUSEMOTORDRIVEN,CANALSOBEUSEDHYDRAULICMOTORDRIVEHOWEVER,INCONSIDERATIONOFTHEWORKINGENVIRONMENTANDWETWITHMUD,OPTIONALHYDRAULICMOTORDRIVEFORGOOD3RUNINSTITUTIONSWALKINGAGENCIESTRACKEDTHEGENERALPATTERN,CRAWLERRUNINSTITUTIONSAPPLYTOTHEFLOORISUNEVENORSOFTCONDITIONS,NOROADTRACKLAYINGTRACTIONWITHLARGECAPACITY,GOODMOBILITY,RELIABILITY,FLEXIBILITYANDMOBILITYONTHEFLOORADAPTABILITYOFTHEADVANTAGESOFGOODBUTITSCOMPLEXSTRUCTURE,COMPONENTSANDWEARMORESERIOUSATPRESENTCROSSSECTIONOFTHEBORINGMACHINEISUSUALLYUSEDCRAWLERRUNINSTITUTIONSWALKINGAGENCIESTRACKEDTHEGENERALPATTERN,THETWOTRACKEDSEPARATELYBYTHERESPECTIVEPOWERTODRIVE,TOACHIEVEINSITUCATERPILLARISTHEDRIVINGFORCEOFTWOMOTORSANDHYDRAULICMOTORS,MOTORDRIVERISGENERALLYSETUPAWALKINGSPEED,HYDRAULICMOTORDRIVENLARGELOWSPEEDTORQUEMOTORCANBEDRIVENDIRECTLYTRACKEDSPROCKET,ORUSEDINTHEHYDRAULICMOTORSPEEDREDUCERLEDTHEDRIVESPROCKETTRACK,ITCANACHIEVEPROMISEGOVERNORTRACKEDSTRUCTUREOFASLIDINGANDROLLINGTWO,WHENTHESPEEDMACHINETOMOBILIZE≤10M/MININTHELIGHTROADHEADER,SHOULDADOPTTHESTRUCTUREOFSLIDINGWHENTHEMOBILIZATIONOFSPEEDMACHINES10M/MINOFHEAVY,SEVEREROADHEADERSHOULDBEUSEDROLLINGSTRUCTURALTYPE4THEHYDRAULICSYSTEMHYDRAULICSYSTEMSUSEOFOPENWAYVALVESYSTEMMORECENTRALIZEDCONTROLDIRECTORREMOTECONTROLMANIPULATIONWAYDOMESTICANDFOREIGNUSEOFTHEPAST,GEARPUMPS,HYDRAULICSYSTEMINRECENTYEARSROADHEADERUSEDPISTONPUMPHAVEINCREASEDTHETREND5ELECTRONICCONTROLSYSTEMELECTRONICCONTROLSYSTEMS,INCLUDINGSOMEPOWER,CONTROLANDINSPECTIONOFTHEPARTELECTRONICCONTROLSYSTEMMUSTBEINACCORDANCEWITHTHEREQUIREMENTSOFCOALMINEEXPLOSIONPROOFDESIGN,MANUFACTURE,TESTING,GB38362000MUSTMEETTHESTANDARDSOFTHERELEVANTPROVISIONSANDREQUIREMENTSINORDERTOIMPROVEOPERATIONSATTHEROADHEADERINTHESECURITY,OPERATIONALFLEXIBILITYANDMECHANICALTRANSMISSIONPARTOFTHEFAULTDIAGNOSISANDMONITORINGFUNCTIONS,FROMTHEPRACTICALPOINTOFVIEW,THEINSTALLATIONOFTHENECESSARYMACHINESFROMAREMOTECONTROLDEVICE,MONITORINGPRESSURE,TEMPERATURE,LEVELANDKEYPARTSTHEFAULTDIAGNOSISDEVICE23LAYOUTGENERALLAYOUTOFTHECONTENTSINCLUDETHEFOLLOWING1IDENTIFYTHECOMPONENTSINCOMPLETEMACHINESAIDTHELOCATION,SHAPEANDSIZEOFTHEREQUEST;2TOIDENTIFYTHEPARTS,COMPONENTSANDTHECONNECTIONSBETWEENCOMPLETEMACHINE;3ESTIMATESCOMPLETEMACHINEWEIGHTANDTHEWEIGHTOFALLCOMPONENTSREQUESTED;4LAYOUTOFTHEMANIPULATIONOFINSTITUTIONS,THEDRIVERSSEAT;5EXAMINATIONOFMOVINGPARTSOFTHEMOVEMENTSPACE,RULEOUTTHEPOSSIBILITYOFINTERFERENCEINTHECAMPAIGN24SPECIFICREQUIREMENTSBORINGMACHINEINTHEGENERALLAYOUT,THENEEDTOPAYATTENTIONTOTHEFOLLOWINGQUESTIONS1INSTITUTIONSINTOTHEREDUCERREDUCER,ASFARASPOSSIBLETOCOAXAXIS;2CANTILEVERANDSPADESUITEDTOTHESIZEOFRELATIONS,NOTONLYCONDUCIVETOLOADING,TOAVOIDCUTTINGTHEFIRSTSHOVELCUTTINGBOARD;3THELEVELOFCANTILEVERANDVERTICALPOSITIONCANSWINGTHECENTERCOINCIDENCE,CANNOTOVERLAPFROMTHEINCREASEDSTABILITYOFTHEMACHINE,THESEAREHIGHLYSWINGSHOULDBEREDUCEDINTHECANTILEVERISNOTGUARANTEEDTOINTERFEREWITHOTHERAGENCIESUNDERTHECONDITIONSOFSWINGCENTRESARELOCATEDSHOULDTRYTORELYON,BUTMUSTENSURETHATTHEMACHINESINTHECENTREPLANEOFVERTICALSYMMETRY;4WHENALLTHEMAJORCOMPONENTSDESIGNEDAFTERCHECKINGSHOULDBECARRIEDOUT,DOESNOTMEETREQUIREMENTSTOBEADJUSTEDJUSTSOTHATTHEFOCUSINTRACKANDLESSTHANTHEFORMERCENTERSHAOPIANL/6LGROUNDINGFORTHETRACKLENGTHINADDITION,THECENTEROFGRAVITYPOSITIONINTHEDEMANDFORCUTTINGBODIESTURRETAFTERTHECENTERLINE,ANDYUEDIYUEHAOHIGHCENTEROFGRAVITYTOENHANCESTABILITYWHENOPERATINGMACHINERY5THEOVERALLLAYOUTSHOULDCONSIDERTHEWEIGHTOFSYMMETRICALLEFTANDRIGHTANDTAKECAREOFWORKHABITSANDTOFACILITATETHEOPERATIONGENERALDRIVERINTHELEFTSIDEOFTHEFUSELAGEANDTHEFUSELAGEINTHEREAR,DRIVERSEATHEIGHTSHOULDENSURETHATTHEPEOPLESATTENTION,WHATGOODCONTROLOFTHEIRMACHINES,CUTTINGOUTTHERULESOFTHEROADWAY;6CAOZONGTAIPOSITIONSHOULDBEAPPROPRIATE,SHOULDENSURETHATDRIVERSEASYMANIPULATION,ANDEFFORTINSTRUMENTSSHOWEDTHATTHELOCATIONDEVICESFORDRIVERSTOOBSERVE,NOTSCATTEREDNORMALOPERATIONOFTHEDRIVERSATTENTION25TYPESANDPOWERTRANSMISSIONCOMPONENTSCHOICETRANSMISSIONPATTERNSANDCOMPONENTSSHOULDFOLLOWTHEPRINCIPLEOFCHOICE1THEADVANCEDNATUREOFTECHNOLOGYMACHINESTOIMPROVEPERFORMANCE,INCREASEPRODUCTIVITY;2ECONOMICRATIONALITYDRIVESYSTEMASSIMPLEASPOSSIBLE,FEWERCOMPONENTSANDEASYPROCESSING,LOWPRICE,EASYMAINTENANCE,LONGLIFE;3RELIABILITYOFTHEWORKTHETRANSMISSIONSYSTEMRELIABILITYPERFORMANCEFORTHELIFEOFCOMPONENTS,ASWELLASCOMPONENTQUALITYREQUIREMENTS;4ADAPTATIONTHEDRIVESYSTEMCOMPONENTSSHOULDBEADAPTEDTOLOAD,WORKINGCONDITIONSANDENVIRONMENTALCONDITIONSOFTHEREQUESTAGENCIESTOTHETRANSMISSIONSYSTEMREQUIREMENTSANDTHECHOICEOFTRANSMISSIONPATTERNSBORINGMACHINECUTTING,LOADING,TRANSPORT,WALKINGANDOTHERINSTITUTIONSGENERALLYARERESPECTIVELYTRANSMISSION,ALLPARTSOFTHESTATEANDSUBJECTTODIFFERENTWORKINGCONDITIONS,THUSDRIVINGP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