外文翻译--带式输送机的调试及对其液压自动拉紧装置的研究.doc

英文原文CommissioningofthebeltconveyorandautomaticallytightenitshydraulicdeviceofHydraulicbeltconveyorautomaticallytensioningdeviceisbasedontapeandinnormaloperationatthestartofthestrainofthedifferentneedsofthetape,afterreasonableanalysisoftensionmodeldesigned.Hydraulicautomaticallytensioningdeviceisthetraditionalwaytightentheupgradingproductscanbewidelyusedincoal,metallurgical,powerplants,cementplants,terminalsandotherbulkmaterialconveyorbeltofthetake-upequipment.Beltconveyoraftertwocenturiesofdevelopment.Hasbecomefromtheinitialprototypedevelopmentwithahigh-speed,longdistance,high-power,thecapacityofmodernmeansoftransport,beltconveyorwidelyusedinmetallurgy,mining,chemicalindustry,ports,powerplants,lightindustry,buildingmaterialsandfoodAndmanyotherenterprisesonthefield.Becauseoftheirsteadyandreliableworkbeltconveyor,thenoiseofsmall,simplestructureandoperationoflow-cost,anywhereinfeedingorunloading.Hasbecomeamajorgranularmaterialtransportequipmentone.Astheconveyorbeltoftheviscoelasticproperties,inordertoensurebeltconveyorrunningthenecessaryfriction,wemustprovideasuitablestrainof.TensionbeltconveyordeviceisanimportantandindispensablecomponentofitspropertieshaveadirectimpactontheoverallperformanceofbeltconveyorsConveyorbeltbythenose,tail,drive,dragroller,roller,askedplanes,belts,consistingofcleaning,etc.Conveyorbeltinstalledintheend,officiallyputintouse,theequipmentneededtodebug.1.Aconveyorbeltofthedebuggingprocess1.1beltconveyorbeltconveyorbeltdeviationrunningbeltdeviationisthemostcommonfault.Failuretoresolvethefocusofattentionshouldbepaidtosuchinstallationofdimensionalaccuracyandday-to-daymaintenance.Deviationduetoacombination,dependingontheneedtoaddressthereasonsfordifferences.Suchas:1.1.1adjustmentdragrollerbearingGroupThebelt-beltinthecentralbeltofthetransportplanedeviation,theycandragrollbyadjustingthegrouptoadjustthelocationofdeviation.Specificmethodisbiasedbeltwhichsideofthetrailerrollgroupwhichsideofthedirectionofadvancementinthebelt,ortheothersideaftertheshift.1.1.2adjustmentbenddrum-drivendrumandthelocationofdrum-drivendrumandbendtheadjustmentdeviationadjustmentofthebeltisanimportantlink.Becauseabelttransportplanesatleast2-5drum,drumalltheinstallationlocationmustbeperpendiculartothelengthofthebelttransportsthecenterline,ifskewedtoomuchinevitabledeviation.1.2unusualnoiseRunningitstransportbeltdrive,drivepulleyandbenddrumrollanddragGroup,isnotnormalinabnormalnoisewillbeissued,accordingtotheabnormalnoisejudgementofequipmentfailure.1.2.1seriousdragrolleccentricitywhenthenoise.Conveyingbeltrunningtractorswillhappenveryoftenrollnoiseandvibrationmixiscyclical.Inparticular,isareturndragroll,becauseoftheirgreaterlength,itsownweight,andalsomorenoise.Noiseinthetwomainreasons:First,manufacturingtractorsrollofseamlesssteelpipewallthicknessuneven,thegreaterthecentrifugalforceandtheotherisintheprocessingofbearingsateitherendoftheroundholewiththeheartofbias,sothatwastoolargecentrifugalforce.Bearinginnotallowingthenoiseanddamagetotheexistenceoftoolarge.Bearinginnotallowingthenoiseanddamagetothecircumstancesmaycontinuetouse.1.2.2shaftcouplingthetwodifferentheartwhenthenoise.Inthehigh-speeddrivemotor-reducerandaskedthecouplingofthebandorbrakecouplingDepartmentissuedaroundoftheunusualnoise,thenoiseandalsowiththesamefrequencyofrotatingmotorvibration.Thisshouldbeanoisereducerintimetomotortoadjustthelocation,inordertoavoidreducerinputshaftfracture.1.2.3bendandrollingChienChien-drivenrollerabnormalnoise.Bendanddrum-drivendrumnormalworkinghoursnoiseisverysmall,unusualnoiseingeneralisdamagedbearings,housingsDepartmentissuedKakabeep,atthistimetoreplacebearings1.3beltskid.Tensioningdeviceusingaheavyhammerofthebeltwhentheplaneskidinthebelttoaddweighttoresolve,addedtothebeltsofarnotslippery.Butshouldnotaddtoomuch,soastokeepthebelttoomuchtobearunnecessarytensionandreducebeltlife.2.tensioningdeviceresearch2.1tensioningdevicefeaturesInthecourseofrunningbeltconveyors,shouldbeabletosolvethestart-up,parkingatthetapeskid,andtheimpactofthelossoftensionandotherissues,withtheuseofthebeltconveyorcontinuousexpansionandtheconstantdevelopmentofscienceandtechnology,andrationaldesigntensioningdeviceItisparticularlyimportant.Tensioningdevicefunctionsinthefollowingpoints:2.1.1ensurethatthetapedrivefromthepointofrollerBensufficienttension,thusensuringdrivemustrelyonthefrictiondrivetransmissionfrictiontraction,drivenconveyortothenormaloperation,Theconveyorsystemtopreventskidding.2.1.2ensurethatthesmallestbranchofcarryingthetensionpointmustbetension,restrictionsontheconveyorbeltintherolleraskedthesag,andensurenormaloperationofbeltconveyors,notbecauseoftheconveyorsystemdownthroughtheverticaljumpimpactcausedthecoalrollerLossescausedbytheelectricalenergyandthematerials,suchasfleshlitteredthephenomenon.2.1.3compensationtapeandplasticdeformationtransitionconditionelongationqualitativechange.Asloadwillcausechangesinthelengthoftheconveyorsystemchanges,creepphenomenonmaycauseconveyorbeltextension,thetensionthereisachangeinthetrendofsmall,toabsorbtheneedtensioningdevicebythecreepoftheSIN,tomaintainnormaloperationoftheconveyorTheminimumrequiredtension,thusensuringthenormaloperationofbeltconveyors.2.1.4fortheconveyorbelttomakethenecessaryjointtrippreparations.Eachhasanumberofjointbeltconveyor,whenaskedinapossiblejointwillhaveproblems,wemustfirstcutredo,tensioningdeviceforbeltconveyorpreparedaloadotherthanthetransportbelt,thiscanbethroughjointfailureRelaxationoftensionjointstosolvethere-installation.2.2PrincipleHydraulic-tensioningdeviceistheautomaticuseoftheconveyorbeltsensorsRallyRally,andgivenaftertherallytocompare.Tightlycontrolthehydrauliccylindermovement.Priortothecommencementofthebeltconveyor,hydraulictensioningdevicefirstlaunchedbyhydrauliccylindermovestotightenT1valueoftheconveyorsystemtoactivateRallyvalue(thevalueofthenormaloperationofabout1.5times).Conveyorandthenstartthemotor,sothattheT2=:eremainconstantthisrelationship,soastoachievetheobjectivetopreventslipping.Afterthelaunch,aftertheconveyorbelttotheratedspeed,T2areautomaticallyconvertedtothestablefunctioningofvalue.Inthestableoperationofstate,theconveyorbeltRallyalmostunchanged,tensioningdevicefixed.WhentheloadchangesorbecauseofothercausesRallydistributionchanges,sothatlargervalueofT2,hydrauliccylinderswillbeautomaticallymoves,sothattheelasticdeformationoftheconveyorsysteminordertoreducetheT2lower.Whenthe112hoursofchange,sensingvigorousrallywillsendasignaltopromotethehydrauliccylinderhydraulicpumpoilsupplytension.T2toachievethisratiotoaconstantvalue.3.Mainfeaturesandfunctions.Beltconveyorhydraulicwinchdynamictensioningdevicewiththecharacteristicsofthefollowingareas:3.1Takingintoaccountcurrentindirectresponsetoloadontheconveyorbeltofchange,drum-drivenmotorcurrentuseasafeedbacksignal,andthenundertheconveyorbelt,loadonthedirectregulationofchangesintheconveyorbelttension,Thiswillfundamentallyovercomethetraditionaldesignoftheproblemssothattheconveyorbeltattheturnoftensionandrelaxationofthestate,toextendthelifeofaconveyorbelttomeettheconveyorbeltontheslippery,Droopoftheconditionsisnotoverrun,beltconveyortomaintainnormaloperationoftherequiredminimumtake-upofdynamictension,youcanachievethebesteffectofdynamictension,thetensioningdevicecanalsoisstudyingtheconveyorThedynamicdesignofthematch,conveyortothecurrentsituationofthepotential.3.2Accordingtotheconveyorbeltontheconditionandthetension.Differentrequirements,simplymodifyproceduresinthecorrespondingSCMconditionsofparameters,youcanmaketheconveyorbelttensioningdevicesadapttotheneedsofallkinds,canbearbitraryregulationconveyorstartandstableoperationofthetension,tomeetthefullcommencementofTensionoverthestableoperationofthetensiononthe1.4to1.5timestherequest.3.3systemresponsespeed,highstability.Commencementofbeltconveyors,hydraulicstationcanimmediatelymovetotheelectromagneticvalvebrake-byreducingthefueltankpressuretoincreasemetresfromtheclutchasked,tensioningdevicereleasedtape,timelycompensationtapeelongation,Reducingthetape-edge-to-bear-impact,notonlystableandreliabletransmissionisactivated,itisbettertoprotectthetape,brokenbeltcanreduceaccidents.Hydraulicbeltconveyordynamictensioningdevicecanautomaticallyachievedynamictension,andfundamentallyresolvethetensionregulatingtheissueoflackofcoordination,fastresponse,thetake-upbetter-performing,haveagoodeconomicvalue,hasabroadApplication,toconveyorcurrenttrendofdevelopment.中文译文带式输送机的调试及对其液压自动拉紧装置的研究带式输送机液压自动拉紧装置是根据胶带在起动和正常运转时对拉紧力的不同需要，经合理的胶带张力模型分析研究而设计的。液压自动拉紧装置是传统拉紧方式的更新换代产品，可广泛应用于煤矿、冶金、电厂、水泥厂、码头等各种散物料带式输送设备的张紧。带式输送机经过两个世纪的发展。已成从最初的雏形发展成为高带速、长运距、大功率、大运量的现代化运输工具，带式输送机广泛应用于冶金、矿山、化工、港口、电站、轻工、建材和粮食等许多上企业领域。带式输送机因其工作平稳可靠、噪声小，结构简单，运行费用低，可在任意位置加料或卸料。已成为主要的散体物料运输设备之一。由于输送带的粘弹性的特性，在带式输送机运行时为了保证必要的摩擦力，必须提供合适的拉紧力。张紧装置是带式输送机不可缺少的重要组成部分，它的性能好坏直接影响带式输送机整体的性能。皮带输送机是由机头、机尾、驱动装置、拖辊、滚筒、中问架、皮带、清扫器等组成的。在皮带输送机安装结束，正式投入使用前，需对设备进行调试。1.皮带输送机的调试过程1.1皮带输送机皮带跑偏皮带输送机运行时皮带跑偏是最常见的故障。为解决这类故障重点要注意安装尺寸精度与日常的维护保养。跑偏的原因有多种，需根据不同的原因区别处理。如：1.1.1调整承载拖辊组皮带机的皮带在整个皮带运输机的中部跑偏时，可通过调整拖辊组的位置来调整跑偏。具体方法是皮带偏向哪一侧，拖辊组的哪一侧朝皮带前进方向前移，或另外一侧后移。1.1.2调整驱动滚筒与改向滚筒的位置驱动滚筒与改向滚筒的调整是皮带跑偏调整的重要环节。因为一条皮带运输机至少有2到5个滚筒，所有滚筒的安装位置必须垂直于皮带运输机长度方向的中心线，若偏斜过大必然发生跑偏。1.2异常噪音皮带运输机运行时其驱动装置、驱动滚筒和改向滚筒以及拖辊组，在不正常时会发出异常的噪音，根据异常噪音判断设备的故障。1.2.1拖辊严重偏心时的噪音。皮带运输机运行时拖辊常会发生异常噪音，并拌有周期性的振动。尤其是回程拖辊，因其长度较大，自身重量大，噪音也比较大。发生噪音的原因主要有两个：一是制造拖辊的无缝钢管壁厚不均匀，产生的离心力较大；二是在加工时两端轴承孔与外圆圆心偏差较大，使离心力过大。在轴承不损坏并允许噪音存在的情况过大。在轴承不损坏并允许噪音存在的情况下可以继续使用。