会员注册 | 登录 | 微信快捷登录 支付宝快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

   首页 人人文库网 > 资源分类 > DOC文档下载

外文翻译--打包机组液压原理及液压系统维护.doc

  • 资源星级:
  • 资源大小:70.00KB   全文页数:11页
  • 资源格式: DOC        下载权限:注册会员/VIP会员
您还没有登陆,请先登录。登陆后即可下载此文档。
  合作网站登录: 微信快捷登录 支付宝快捷登录   QQ登录   微博登录
友情提示
2:本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3:本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

外文翻译--打包机组液压原理及液压系统维护.doc

外文1HydraulicSystemforPrepresserAbstractThepaperintroducesthecomposition,operationprincipleandfeaturesofthepropressershydraulicsystem,andalsothemaintenanceofthesystemindetail.Keywordshydraulicsystem,maintenanceofhydraulicsystemAtpresent,highpressurehydraulictechnologyinachievingtheflowandhighefficiency,durabilityandahighdegreeofintegration,andotherrequirementshavemadesignificantprogress,isincreasinglyshowtheirvitality.Tobaccoindustryintheapplicationareverywide.1.Packingahydraulictransmissionunitandthecompositionoftheworkingprinciple1.1packingprinciplehydraulictransmissionunitPrepressurehydraulicsystemisthecoreofthepackageunit,hydraulicsystem,theECwillhaveadirectimpactonsurchargingpackingunitperformance.TwoofthehydraulicpresshydraulicsystemFigure1fromthemainhydraulicPumpingStation,hydraulicpipelinesystemsandcomponents,suchasfueltanks,hydraulicpumpstationandfromfueltanks,hydraulicpumpgroup,controlvalveblock,filtercoolingsystemcomponents,prepressurefueltanksandtoupgradethefueltankmovementsrelyingonliquidpressuretoachieve.whenthefueltanksdonotwork,theoilpumppressurereliefvalvecanbeelectromagneticorreversingvalvefunctiontothemedianunloading.electromagnetwhenDT15or16DTforelectricity,No.64.1or64.2hydrauliccontrolvalveopened,thefueltankcouldsurchargingformeddifferentialcircuit,thewhereaboutsoffreedomfastdownlinkcapabilities,inafreewhereaboutsstageliquidfilledtankfilledthroughthevalve68.1orserialnumber68.2tothemastercylinderonthecavityquicklyaddoil.surchargingamultipumpfueltankswereunloadingoilandtheformofprepressurefueltankstoachieverapid,slowspeed,andotherrequirementsoftheonewayexpenditurethefueltankvalveadjustablespeedbufferorspeed,thecoolingsystemcanstrictlycontroltheoiltemperature,sophisticatedfiltersystemcanimprovethecleanlinessofhydraulicoil,whichareguaranteedhydraulicsystemisreliableandeffectivemeasures.belowtothe1stsurchargingMachineasanexampletoillustrateStartpumpmotor,theoilabsorbingoilbytheOilFilter19.1,20.1closingvalves,joints21.1avoidvibration,22.1pumps,theonewayvalve34.1,36.1onewayvalve,71highpressurehose,72highpressurehose,46thereturnofelectromagneticreliefvalvetank.whenthefueltanksonthetriponthe1st,at46reliefvalveelectromagnetintheelectromagneticpower,62.1inthetwofourwayreversingvalveelectromagneticpower,tocontroloilby73highpressurehose,highpressure79Hose,48valvehydraulicvalveto68.1,68.1hydromechanicalvalveisopened,hydraulicoil,asoilabsorbingOilFilter19.1,20.1closingvalves,joints21.1avoidvibration,22.1pumps,theonewayvalve34.1,36.1valve,71highpressurehose,72highpressurehose,73highpressurehose,aonewayvalveplate58.1,59.1throttleoneway,oneway60.1throttleintothecavityunderthefueltank,thefueltankcavityOil68.1hydromechanicalvalvetothetankfilled,increasedfueltanksatthistime,whenonthestrokeattheendof46reliefvalveelectromagneticpower,62.12StoneSOLENOIDVALVEpower,hydraulicoilby46electromagneticoverflowthereturnvalvetank.Pistonsdownwhenoiltanks,fueltanksoftherequirementsoftheoilpressurethanpistontobaccoreactedlessfueltanksDetroitPistonsbarsandtheweightofthefueltankdownlinkthereforecanbedividedintofourstagesthefirstonePressurestageistheinitialstageofthefirstdownlink,andthenbecauseofpressurehead,rod,rodoriented,suchasgreaterweight,andmechanicalandelectricalequipmenttostarttripairisnottheresistancetotobacco,tobaccopressureheadstartcontactssincethenTobaccoisveryloosely,andsmallresistance,therebypressureheadcompletelyonthemselvesunderpressure,precavitypressureonthefueltankofavacuum.whereaboutsofthisstagethatfreestage.liquidfueltankattheatmosphericpressureintheroleofoilthrough68.1onthefueltankintothecavity,66.1electromagneticballvalvesfortwotothreelinkswillbe64.1cartridgevalveisopened,theinferiorvenacavathroughthedifferentialoiltothefueltankcavity,thepumpprovidedbytheoilpressurereliefvalvethroughtheelectromagnetic46inthefueltanks,enteredthesuperiorvenacava.Thesecondphase,duetobreathingcompressedtablets,thefirstdownwardpressuregrowingresistance,thisresistancewhenpressureisgreaterthanthefirst,andthentheweightofthepistonrod,thecavitypressuretothefueltankpressure,thepressureatthistimefirstontheoilpressuretopushthePistonstodownlink.filledat68.1valveclosedcavityundertheoildifferentialprogressivecavitytoreturn,thepumpprovidedbytheoilpressurereliefvalveintheelectromagneticthrough46,tocontinueintothecavityonthefueltank,Asthispressurelesspressurehydraulicpumpstationtothefueltanktoprovidethemaximumflowofhydraulicoilunderpressurerelativelyfastpace,sothisstage,knownasrapidpressurestage.Thethirdstage,whenthesmokecompressedtoacertainextent,thegradualincreaseinpressure,thenusingaslowerspeed,andpressedthisstage,knownasSlowstage.Cavityundertheoilatthistimedifferentialprogressivecavitytoreturn,thepumpprovidedbytheoilpressurereliefvalveintheelectromagneticthrough46,tocontinueintothecavityonthefueltank,thereliefvalve35.1,35.2ofelectromagneticpower,willpump2,thepressureoftheoilpump4tounloadingtank.Thefourthstage,whenpressureheadpressuretotherequiredsize,thepressureheadtostayforaperiodoftimeinordertopreventexcessivesmokereboundthisphaseknownasthepackingstage.Atall,thesolenoidvalveinthepower,allPumppressureunloadingoiltothefueltank.Thisisthemainfueltankofthebasiccourseofaction.Canbeseenfromthecasesofhydraulictransmissioncharacteristics1PrePressthemainfueltanksuseddifferentialcircuitandliquidfueltankintheformofdownwardpressureheadmakesfastworkofsmooth,supportingashorttime,thehighefficiencyandreducedenergyconsumption.2hydraulicsystemuseshydraulicoilcoolingdeviceinstalledHydraulicOilandfiltersystemssothattheworkofhighreliabilityequipment.3designofthefueltankandhydraulicoilcoolerelectricheatingsystemmakesthismachinehasawiderangeofadaptability.4amultigradeoilunloadingpumpmodel,thefueltanktoachievethevariouspistonspeed.5TheownerCircuitplateusingsoftswitchingmodes,reducingtheimpactofthehydraulicandhydraulicvibration.1.2packingunithydraulicsystemhydrauliccomponentsHydraulicpackingunitfromthehydraulicsystemhydraulicpumpstationsandhydraulicpiping外文3systemcomponents,hydraulicpumpstationandfromfueltanks,hydraulicpumpgroup,controlvalveblock,filtercoolingsystemcomponents.1.2.1FuelTankArectangulartankstructure,theeffectivevolumeofabout3.5m3aroundontheroofinstalledwithairfilter,airfilterUnscrewthetopofthetankisrefueledmouth.Onthesideofthetankwasopenedholesfortheworkerstoentercleaningtank.alsoinstalledatankwiththesurfacetemperatureshowdisplays,thetwoelectricalcontactsandathermometerliquidlevelcontroller.RangeOilFilterinstalledintheboxonthewall,thedischargeofoilabsorbingfilterremovedwillbecoveredOilFilterCore.filterinsideisaonewayvalve,filterout,theonewayvalvewillbeclosedquicklyOilFilter,inthecircumstancesbuildsitsoilfilterwillnotremoveoilspills.1.2.2PumpUnitThehydraulicsystemusestwopumps,eachpumpingsystemsfromamotordrivenadoublevanepump,surchargingthelargestsupplyofthefueltankto342.3l/min,feedbinenhancethesupplyofcylinderto70.3l/minhydraulicsystemusestheflangeofthevalve,pressurereliefvalve,electromagneticReliefValve,theorderofonewayvalvesandvalvesetswereinstalledinthepumpoutoilatthesite,thedesignofthisstructuretoamorecompacthydraulicpumpstation.1.2.3upgradecontrolofthefueltankvalveblockThevalveblockwiththetwofirsttwoelectrohydraulicdirectionalcontrolvalveandthesuperpositionoftwoonewaythrottle,fueltanksinstalledinthepumpingstation,thecontrolofgroupactivitiesexpectedmeraisefueltankmovementsandsuperpositionofonewayexpectedmethrottlecontrolrateofdecline.1.2.4ofthecoolingsystemofhydraulicfiltrationsystemusesanindependentcoolingsystemfiltersfromthevanepump,safety,finefilters,coolersandsoon.Thisvanepumpform.coolertheflowof82.8L/min,finefilterfilteringaccuracyof10coolinganareaof7.0m2,withthecirculatingwatercoolingofthesystemcanimprovethecleanlinessofoil,butalsotoensurethefullloadofoiltemperatureofnotmorethan50℃.2hydraulicsystemmaintenance2.1SummaryPracticeshowsthatthehydraulicoilcontaminationofhydraulicsystemfailureisthemainreason,ithasseriouslyaffectedthereliabilityofthehydraulicsystemcomponentsandthelife.Duetohydraulicoilpollution,theactuallifeofhydrauliccomponentsoftenmuchlowerthanthedesignlife.thereforetheproperuseofhydrauliccomponents,management,aswellaspollutioncontrol,istoimprovesystemreliabilityandextendtheservicelifeofimportantcomponentsmeans.2.2pollutantsandthetypesofhazardsHydraulicSystemofpollutants,isincludedinthesolidparticlesintheoil,water,air,chemicals,microorganismsandpollutionenergy,anddebris.Hydraulicoilpollution,andthecomponentsofthesystemhavethefollowingadverseeffects1solidparticlesacceleratedcomponentwear,andplugthegapOilFilter,pump,valveperformancedecreasenoise.2waterimmersionacceleratetheoxidationofoilandadditivesplayaroleandhaveaviscousresin,filterplugging.3airmixedwiththevolumeofoillowermodulusofelasticity,causecavitation,loweroillubrication.4solvents,surfactants,suchaschemicalcompoundstometalcorrosion.5thegenerationthatmicrobialoildegenerate,reducinglubricationperformance,acceleratedcorrosioncomponents.Highwaterbasedhydraulicoilofthemoredangerous.Addition,theimproperheat,electrostaticenergy,magneticfieldandradiationcanoftenOilisconsideredthepollution,theyhavetooiltemperatureexceedsthelimit,resultinginoildegeneration,whileothersareincurredfire.2.3pollutioncauses1NewOilPollutionPeoplebelievethatthepurchaseofanewhydraulicoilmustbeclean.Fact,thisunderstandingisnotcorrect,therearealsonewoilpollution,suchascontainersQicengandcoating,oilinghoserubberanddustintheatmosphere,andsolikelytobeoil.2thenewsystemofpollutionhydraulicsystemanditscomponentsinthemanufacture,assembly,storageandhandlingprocess,thesand,chip,abrasives,weldingslag,dustandrustsuchasworkinginthehydraulicsystemhasnotyetenteredthesystembefore.3theuseofthehydraulicsystemintheprocess,throughthereciprocatingmotionofthepistonrod,theoilinjectionsystem,theflowofairinthefueltank,thatmayorcondensationdroplets,thereturnofthefueltankleakageandotherpollutantsthatenterthesystem.4Hydraulicsysteminthecourseoftheirworkandcontinuetoproducemetalsealthewearparticles,particlefiltermateriallossorfiber,suchaspeelingpaintdebris.5Maintenancebroughtintotheprocess,suchasdustandVelveteen.6Oildegenerateafterachemicalreaction,sothatmetalcorrosion,Emergingparticles,rustfilmtoensureoilpollution.2.4Oilpollutionstandardsandtestmethods2.4.1pollutionOilpollutionandwhetheritcancontinuetouse,theremustbeastandardtestmethods.RegularontheinternationalstandardsadoptedforaUnitedStatesaerospacestandardclassificationNASandtheInternationalOrganizationforStandardizationISOreleasedthepollutionstandards.DevelopedinChinaHydraulicoilsolidparticlesofpollutionequivalentgradestandardsusinginternationalstandardsISO446,thepollutionlevelsbytwostandardcodethatoilpollutiongrade,infrontofthecodeonbehalfofoilmparticlesgradesbehindthecodeonbehalfofoilper1mLgreaterthan5mparticleslargerthanthenumberofgrades,thecodebetweenper1mLof15thetwoseparatedbyaslash,suchas20/17.2.4.2TestMethod1bloodcellcount2theweightoflaw,thatis,foreach100mLofoilparticlesintheweightofcomponentsthat.3Oilpollutiondetectedatthescene.Currentuseofvisualfieldtests,andlookatthecolorofolfactoryoilsmell,usuallythejudgementoflawisthefollowingIComparisonwiththenewoil,exteriorinspectiontoseewhetherthereisadifferencebetweenoilcolors,whethermixedcorrosion,whethersuchasdustandsediments.IiwhetherthereisasmellofthestenchorJiaochou.Iiicomparedshakenafterthedisappearanceofthebubblelevel.IvwithnitricacidetchingPHtestpaperordruguseindicators,AcidTests.VdropsaDiyouChekhotgrill,ifChiChisoundthatoilcontainingwater,thefollowing

注意事项

本文(外文翻译--打包机组液压原理及液压系统维护.doc)为本站会员(英文资料库)主动上传,人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知人人文库网([email protected]),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5