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英文原文THETECHNICALSITUATIONANDDEVELOPMENTTRENDOFELECTRICALHAULAGESHEARERSABSTRACTINTHISPAPER，THETECHNICALDEVELOPMENTHISTORYANDTECHNICALSITUATIONOFELECTRICALHAULAGESHEARERSFORTHINSEAMOFCHINAAREREVIEWED，ANDTHEMAINTECHNICALPARAMETERS，GENERALSTRUCTURE，SERIALIZATIONANDDEVELOPMENTTRENDOFSUCHSHEARESAREINTRODUCED．KEYWORDSTHINSEAM；SHEARER；ELECTRICALHAULAGE；MULTIMOTORDRIVING；TRANSVERSEARRANGEMENTGERMANEICKHOFFCOMPANYANDAMERICANJOYCOMPANY,THEMID70SIN20CENTURIESDEVELOPSADIRECTCURRENTTOLEADTOADOPTCOALMACHINEONEAFTERANOTHERHENCEFORTH,EACHMAINLYADOPTEDCOALMACHINEARESEARCHAMANUFACTURINGACOMPANYTOALLLEADTOADOPTCOALMACHINETOCARRYONTOTHEELECTRICITYINTHEWORLDAGREATDEALOFOFSTUDYADEVELOPMENT80THEAGEEXPECTEDTOAPPEARALTERNATECURRENTTOLEADTOADOPTCOALMACHINEBEHIND90AGE,THEBIGPOWERELECTRICITYWHICHDEVELOPSTOGATHERELECTRONICS,MICROELECTRONICS,INFORMATIONMANAGEMENTANDCALCULATORINTELLIGENCETECHNIQUEINTHEINTEGRALWHOLELEADSTOADOPTCOALMACHINE,LIKETHELSSERIESOFAMERICANJOYCOMPANY,BRITISHLONGAIRDOXTHEELECTRA,SLSERIESOFTHECOMPANY,THEEDW,SLSERIESOFGERMANEICKHOFCOMPANY,THREEWELLSINJAPANTHREEPONDCREATIONTHEMCLEDROFSERIESETCTHEELECTRICITYLEADTOADOPTCOALMACHINETHEELECTRICITYLEADSTOADOPTCOALMACHINEGOODANDDEPENDABLESEXWITHITSFUNCTIONPARAMETERGAO,AUTOMATIONDEGREEGAO,OPERATIONCONVENIENCE,SUPERVISIONPROTECTIONANDEXAMINATIONTHEFUNCTIONPERFECTANDECONOMICPERFORMANCEGAODENG3SADVANTAGEBEQUICKLYEXPANDEDANUSAGE1THEFOREIGNELECTRICITYLEADSLONGTOADOPTTHECOALMACHINEDEVELOPMENTGENERALSITUATION11GERMANEICKHOFCOMPANYAFTER1976DEVELOPPEDSUCCESSFULDIRECTCURRENTTOLEADTOADOPTCOALMACHINE,ITWASBASICTOSTOPPEDALIQUIDTOPRESSTOLEADADEVELOPMENTRESEARCHOFADOPTTHECOALMACHINEANDCONTINUOUSLYDEVELOPPEDVARIOUSFORMELECTRICITIESTOLEADTOADOPTCOALMACHINE90THESLSERIESTHATTHEAGEDEVELOPISHORIZONTALTOARRANGETHEALTERNATECURRENTLEADTOADOPTCOALMACHINE,CUTTOMOWELECTRICALENGINEERINGTOARRANGEINSHAKINGARMAMONGTHEM,THESTYPEELECTRICITYLEADSTOADOPTCOALMACHINETOPACKMACHINEPOWERTOREACHTOONE580KWS,BIGGESTLEADDINT998LSOKNSSL300TYPEELECTRICITYLEADSTOADOPTCOALMACHINETOALWAYSPACKMACHINEPOWERONE018KWS,THEADOPTIONDOUBLECHANGEONCETHEPINMACHINEDRAGALONGONESYSTEM,BIGGESTLEADSPEEDTOREACHTO545MS/RAISYSTEMTHESYSTEMHAVETOHANDOVERWITHEACHOTHERATYPEAPERSONTHEMACHINEDIALOGUE,EQUIPMENTSHEALTHILYFORECASTS,THEONLINECONTROL,DATADELIVERETCFUNCTION12BRITISHLONGAIRDOXCOMPANYAFTER1984DEVELOPPEDSUCCESSTHEFIRSTSETCUTTOMOWELECTRICALENGINEERINGTOARRANGEATMANYDECORATIONSWITHHORIZONTALELECTRICALENGINEERINGSOFSHAKETHEARMSGETELECTRA550TYPEDIRECTCURRENTLEDTOADOPTCOALMACHINE,ATITSFOUNDATIONTOPENLARGEMENTPOWER,ANDTHENDEVELOPINTOANELECTRA1000TYPEDIRECTCURRENTTOLEADTOADOPTCOALMACHINE90AGE,ONTHEMODELFOUNDATIONOFTHEELECTRASERIES,ENLARGEMENTPOWER,THEIMPROVEMENTCONTROLSSYSTEM,DEVELOPPEDELSERIESALTERNATECURRENTTOLEADTOADOPTCOALMACHINEANDTHEMAINMODELCONTAINSEL600,EL1000,EL1500,EL3000TYPEATELSERIESMODELUPEQUIPOFTHEIMPACTINTEGRATEPROTECTIONANDSUPERVISEANDCONTROLSYSTEMANDHAVEBURDENTOCONTROL,MACHINESUPERVISION,ADOPTCOALMACHINETOAUTOMATICALLYPOSITION,AUTOMATICALLYKEYUP,DISTRICTCONTROL,THEINTELLIGENCETURNSAFECATENAANDRANDOMBREAKDOWNDIAGNOSIS,DATATODELIVERETCFUNCTION13AMERICANJOYCOMPANY2070SINCENTURYSDEVELOPPINGSUCCESSFULLYA1LSMANYELECTRICALENGINEERINGSISSUCCESSFULLYHORIZONTALTOARRANGETHEDIRECTCURRENTAFTERLEADADOPTCOALMACHINECONTINUOUSLYDEVELOPPEDA2ISISS7SAGAINETCTYPEMANYELECTRICALENGINEERINGSAREHORIZONTALTOARRANGETHEDIRECTCURRENTLEADTOADOPTCOALMACHINE7155ADOPTTHECOALMACHINETOTALPOWERONE940KWS,LEADTHESPEED30MS/MINADOPTASTRONGDINTSELLSATRACKTOHAVENOCHAINTOLEADSYSTEM,THEENLARGEMENTCHAINTRACKSTANZAISAPARTFROMWITHWIDTH,ANDADOPTAFORGINGTOSELLAROW；EQUIPAND6LS5TYPETHEINGENERALUSEJNAMACHINECARRYCALCULATORINFORMATIONCENTERANDHAVEPERSONSMACHINECOMMUNICATIONINTERFACE,BREAKDOWNDIAGNOSISSKETCHTOSHOWANDSTORE,WIRELESSCONTROLFROMADISTANCE,LEADFUNCTIONSSUCHASCONTROLANDPROTECTIONETC14JAPAN1987THEYEARCONTINUOUSLYDEVELOPSTOSUCCEEDVARIOUSSERIESALTERNATECURRENTOFTHEMCLEDRWHICHMOWELECTRICALENGINEERINGTOLENGTHWAYSSETOUTSTOLEADTOADOPTCOALMACHINEBEHINDANDDEVELOPPEDTOCUTMANYELECTRICALENGINEERINGALTERNATECURRENTSOFMOWTHEELECTRICALENGINEERINGHORIZONTALDECORATIONSTOLEADTOADOPTCOALMACHINEAGAINFORTHELASTFEWYEARSADOPTTHECOALMACHINEHASTINYMACHINEWORKCONDITIONAMONITORANDBREAKSDOWNDIAGNOSISSYSTEM,CANTHENUMERICALMANIFESTATIONLEADSPEED,ROLLERPOSITION,STAYABOTTOMCOALTHICKNESS,ELECTRICALENGINEERINGLOADANDEVERYWHERETEMPERATURE,HAVEWIRELESSREMOTECONTROL,ANDCANADDINFRAREDRAYSHOOTTHEMACHINEMANIPULATEALIQUIDTOPRESSASUPPORT15POLANDTHEKOMAGMINEFORMINERALSAMECHANIZATIONRESEARCHCENTERPOLANDCONTINUOUSLYDEVELOPPEDKSEINDEVELOPPINGSUCCESSFULKSEA344THINCOALSEAMALTERNATECURRENTSWITHCHINESECOOPERATIONTOLEADFOUNDATIONOFADOPTTHECOALMACHINEA360,KSEA700,KSEONE800RWS/2BPS,KSEA535SS/2BPS,KSE1000TYPEETCALTERNATECURRENTLEADTOADOPTCOALMACHINEADOPTTHECOALMACHINECUTSDEEPLYFROM630171111RAISE8001000MMS16RUSSIATHEFORMERSOVIETUNION70SIN20CENTURIESDEVELOPSAK128ISISTHEDIRECTCURRENTAFTERLEADADOPTCOALMACHINEDEVELOPSTOSUCCEEDVARIOUSDIRECTCURRENTSTOLEADTOADOPTCOALMACHINEONEAFTERANOTHERAGAIN9THEAGEOFTHEODEVELOPPEDKA8ETCALTERNATECURRENTSTOLEADTOADOPTCOALMACHINEEVERYCONSIDER,THEELECTRICITYOFRUSSIALEADSTOADOPTCOALMACHINEPOWERSMALLER,THEDIRECTCURRENTLEADANDTHEFUNCTIONPARAMETERISLOWER2THELOCALELECTRICITYLEADSTOADOPTTHECOALMACHINEDEVELOPMENTGENERALSITUATIONINRECENTYEARSTHEOURCOUNTRYELECTRICITYLEDTOADOPTDEVELOPOFCOALMACHINETOOBTAINASUBSTANTIALPROGRESSWITHDEVELOPMENT,CARRYONTWODEVELOPMENTSINDIGESTINGTOABSORBABROADTOUSHERINTOADOPTTHECOALMACHINETECHNICALFOUNDATIONANDOWNEDMANYHAVEANINDEPENDENTINTELLIGENTPROPERTYRIGHTOFCHANGEAPRODUCT,ATOURCOUNTRYCOALMINECOMPREHENSIVETHEMECHANIZATIONADOPTCOALWORKNOODLES,COALSCIENCESTUDIESTOTALSHANGHAIBRANCHINTHEHOSPITALANDPOLANDCOOPERATES,AFTERTHELOCALINITIATIVEDEVELOPSUCCESSFULOURCOUNTRYSFIRSTADOPTIONEXCHANGESCHANGEPINADJUSTSOONTECHNICALTHINCOALSEAMTOCLIMBSCALEBOARDTOADOPTCOALMACHINE,BRANCHINSHANGHAIAGAINSUCCESSIVELYDEVELOPSUCCEEDCUTTOMOWTHEALTERNATECURRENTTHATTHEELECTRICALENGINEERINGLENGTHWAYSSETSOUTTOLEADTOADOPTCOALMACHINEANDCUTTOMOWELECTRICALENGINEERINGHORIZONTALSETOUTOFBEAPPLICABLETOINTHICKWITHTHEALTERNATECURRENTOFTHINNERCOALSEAMLEADTOADOPTCOALMACHINE,ANDSUCCEEDAPPLIEDATTHEJINCITY,HUAISOUTH,XU2ZHOU,BIGEQUALMINERALDUTYBUREAU3TECHNIQUECHARACTERISTICSANDDEVELOPTREND31PACKMACHINEPOWERTOENLARGETHEFUNCTIONPARAMETERRAISE1THESINGLESETPIECEMOWSELECTRICALENGINEERINGPOWERALLINTHE400KWSABOVETHEMOSTADOPTSTHECOALMACHINESINGLESETPIECETOMOWELECTRICALENGINEERINGPOWERTOALREADYARRIVE6OOKW,THE7LS5SADOPTSTHECOALMACHINESINGLESETPIECETOMOWELECTRICALENGINEERINGPOWERTOBEUPTO750KWS2LEADPOWERALLABOVEINTHE80KWS,BIGGESTALREADY220KWS3ALWAYSPACKMACHINEPOWERMORETHANONE000KWS,REACHTOONE94OKWSSUCHASTHE7LS5S,THEEL3000ALWAYSPACKSMACHINEPOWERASTALLESTAS2000KWS4LEADSPEEDANDLEADDINTTOSIGNIFICANTLYRAISELEADTHESPEEDL525MS/MIN,LEADTHEDINT500KNSABOVEBIGGESTLEADSPEED545MS/RAINSL300,BIGGESTLEADDINT998KNS5CUTTOMOWPOWERAGGRANDIZEMENT,THESUPPORTRANDOMPAYSTOPROTECTOFREALIZATION,THEENLARGEMENTROLLERCUTSDEEPLYTHELIS0YEARAGOSANDCUTDEEPLYMOSTLYISA630700INLL1S,WIDESPREADNOWADOPT10001200ZISTOCUTDEEPLY,SEPARATELYATTAIN1500INFNSESTOCUTDEEPLY6THEEXALTATIONADOPTSTHECOALMACHINECREDIBILITYWITHCANUTILIZATIONTHEABROADADOPTSCOALMACHINEADOLLARAPARTSADESIGNLIFESPANTHEWHEELGEAR12500HS,THEBEARINGSIS2000030000HSES,THEELECTRICALENGINEERINGINSULATESTHELIFESPAN44000HS,ANDTHEROLLERADOPTSCOAL640,000TSADOPTCOALMACHINETOGREATLYFIXAPERIODFOR2YEARS,THECOALMEASURE3005,000,000TSOURCOUNTRYREQUESTSTHATADOPTINGCOALMACHINECOALMEASURESA1502,000,000TSBUTNOTANDGREATLYFIXS,THEMARGINISVERYBIG32MEDIUMHIGHPRESSUREPOWERSUPPLIESALONGWITHADOPTCOALMACHINETOPACKTHEMACHINEPOWERSIGNIFICANTEXALTATION,THEWORKNOODLESCONTINUOUSLYLENGTHENS,THEWHOLEWORKNOODLESCAPACITYWORKSOVERTHE5000KWSTHENOODLESLENGTHATTAIN300MSINORDERTOREDUCEPOWERLINEROADTOEXHAUST,QUALITYANDELECTRICALENGINEERINGFUNCTIONOFTHEEXALTATIONPOWERSUPPLY,HIGHPRESSUREPOWERSUPPLYINTHEWIDESPREADADOPTIONTHEMAINPOWERSUPPLYGRADEHASA2300,3300,4160AND5000VETC33SUPERVISIONSPROTECTIONSYSTEMINTELLIGENCETURNTHEMODERNELECTRICITYLEADSTOADOPTTHEINTELLIGENCETHATTHECOALMACHINEALLHASESTABLISHMENTINTHEMICROPROCESSORFOUNDATIONTOTURNSUPERVISION,MONITORANDPROTECTIONSYSTEM,CANCARRYOUTTOHANDOVERWITHEACHOTHERTYPEPERSONMACHINEDIALOGUE,WIRELESSCONTROLFROMADISTANCE,THEWORKCONDITIONMONITORANDAPPEARANCESHOW,THEDATACOLLECTTOSAVEANDDELIVER,HEALTHBREAKDOWNDIAGNOSISANDWITHEARLYWARNING,AUTOCONTROL,AUTOMATICALLYKEYUPETCVARIOUSFUNCTIONS,ADOPTTHECOALMACHINEMAINTENANCEQUANTITYLEASTBYASSURANCE,THEUTILIZATIONISTHETALLEST,ANDCANCARRYOUTTOPRESSASUPPORTWITHLIQUIDANDWORKTHENOODLESTRANSPORTTHEINFORMATIONOFMACHINETOHANDOVERWITHEACHOTHERWITHALLIEDMOVEACONTROLETCFUNCTIONSUCHASANNEVIRTUOUSSENCOMPANYELSERIESTHEMODELUPEQUIPSIMPACTHETINTEGRATESPROTECTIONANDSUPERVISIONSYSTEM,THEEICHHOFOFTHEEICHHOFCOMPANYADATAGATHERSTOGETHERTECHNIQUESYSTEM,THEJOYCOMPANY6LSTYPETHEELECTRICITYLEADTHEJNANETWORKINFORMATIONCENTEROFADOPTTHECOALMACHINEETCSUPERVISEANDCONTROLPROTECTIONSYSTEMINTELLIGENCETOTURNMAINFUNCTION1LOADTHECONTROLPASSESTHEMONITORTHATTHEPIECEMOWSELECTRICALENGINEERINGELECTRICCURRENT,ADJUSTTOADOPTLEADOFCOALMACHINESPEEDANDMAKETOADOPTCOALMACHINEUNDERTHEDIFFERENTWORKCONDITIONWITHSUPERIORTURNOFTHEPARAMETERCARRYONAWORKANDPROMISETOSPREADTOMOVESYSTEMTODONTEASILYBECONTINUOUSLYPOUNDEDATINFLUENCE；2WORKNOODLESFIXEDPOSITIONCONTROLSIDENTIFYINGTOADOPTCOALMACHINEISWORKTHEPOSITIONOFNOODLES,AUTOMATICALLYDECELERATEINTHEMACHINEHEAD,MACHINETAILWITHSTOP,MATCHWITHAREALIZATIONAUTOWITHSUPPORTTORANDOMMOVE；3TRANSPORTMACHINEWITHWORKNOODLESALLIEDMACHINEBURDENTHECONTROLPASSABURDENMONITOROFTRANSPORTTHEMACHINETOREGULATETOADOPTTHEADOPTOFCOALMACHINEAMOUNTOFCOALANDMAKETOADOPTCOALMACHINEANDTRANSPORTTHEPRODUCTIONABILITYOFMACHINETOMATCHMUTUALLY；4AUTOMATICALLYKEYINGUPACONTROLWILLHAVETHECOALROCKBOUNDARYOFCERTAINRESOLUTIONTOIDENTIFYTOSPREADAFEELINGMACHINETOCOMBINEACALCULATORCONTROLANDCONSTITUTEACOALROCKBOUNDARYTOSPREADFEELINGDEVICEANDCOALROCKBOUNDARYTOIDENTIFYSYSTEMHAVEALREADYAPPLYTOPHYSICALLYORJUSTBEPLACEDINRESEARCHATTHEPRODUCTIONCURRENTLYWITHEXPERIMENTTHECOALROCKOFSTAGEIDENTIFYAMETHODANDANALYTICALTHESYSTEMMAINLYHAVEREMEMBERTHEINTELLIGENCEDISTANCECONTR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