会员注册 | 登录 | 微信快捷登录 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--浅谈带式输送机的拉紧装置.doc

  • 资源星级:
  • 资源大小:66.50KB   全文页数:15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--浅谈带式输送机的拉紧装置.doc

1附录ADiscussionaboutpullinstallationofbeltconveyerBeltconveyeralsoclaimedrubberbeltconveyor,whichiscalledleatherbeltintheProducescene,isthecontinuousfacilityfortransportingofthecommonenterpriseoffactoriesandmines.Itiswidelyusedunderthewellofcoalmine,particularlyextensively.Themajorpartsofbeltconveyerincludeconveyerbelt,actuatingdevice,bearingroller,cylinder,frame,tensionstation,brake,supplementaryequipmentaswellaselectromechanicalprotectivedeviceandsoon.Whendesigningbeltconveyer,first,shoulddetermineoriginalenumerateddata,suchastheexpectedproductivity,conveyertransportlinepicture,thewayofgivingmaterialanddischargewaybyworkingconditionandtheinstallationfeatureofconveyeraswellasthephysicalmechanicalperformanceoftransportationstockandsoonAndinthedesigncaculationoftypeselectingneedtoselectrelatedparameterreasonably,forexamplebandwidth,beltspeedandwrapsangleofthedrivingpulley,theoperationresistancecoefficientofparts,makethemclosetoactualoperationstateworthinordertoraiseeconomicbenefitsandthecomprehensivetechnologyofbeltconveyer.Sincebeltconveyeristoleanconveyerbelt,thefrictionwithdrivepulleytransmitshaulage,thereforetensionstationcanbedesignedwithdefiniteparameteraccordingtotherequirementfortensionintheoperationofconveyerbeltwhichincludingcharacteristic,installationlocation,tensionadjustingrangeandthetypeoftensionstationandsoon.Tensionstationcandirectlyaffecttheperformanceofbeltconveyerasitsperformanceofessentialimportantcompositionpartofbeltconveyer.Inbeltconveyersystem,themaineffectoftensionstationhasthefollowing(1)Guaranteeconveyerbeltssplitofdrivingpulleyhavepropertensioninordertopreventconveyerbeltfromdozeningslippery.Beltconveyerdependonthefrictionbetweensupportconveyerbeltanddriveingpulley,inappearancemeetwithsplittoproduceatensionhaulageofsystem.Thereforetomakebeltconveyerstabilizeoperationneedtoguaranteeconveyerbelthaveenoughtensionindriveingpulleysplitplace,inordertomakeconveyerbeltrelyon,withthefrictionofcylinder,transmitingthehaulageneededbysystem.Ifsplitplacehaslittletension,thefriction2haulagethatconveyerbelttransmitscantmakebeltconveyerrun,conveyerbeltwouldhitoncylinderslippery.2Guaranteehavingnecessarytensioneachonthegirthofconveyerbeltsoassatisfysagrequirement.Conveyerbeltssagbetweentwobearingrollersshouldnotbeexceptional,otherwiseconveyerbeltwouldrelaxexcesslytolosegrooveshapecausethesideslipofconveyerbelt,arousespillage,increaseoperationresistance.Thereforeautomatictensionstationshouldguaranteethatconveyerbelthasenoughtensionintheminimumtensionplaceinordertorestrictsagbetweenbearingrollersonconveyerbelt,keepbeltconveyerssteadyoperation.3Theregulationoftensioninthenotsteadyworkingconditionofstart,brakeetc.Inthecourseofstarting,becauseofaccelerationsportofbeltconveyer,thehaulagethatconveyerbeltneedtotransmitbiggerthansteadyoperationmuch,thereforeithastoraisethetensionvalueinthesplitplaceofthedriveingpulleytoproducelargerhaulage.Andinbrakecourse,especiallyfortheconveyeroflongdistanceandbigvolume,astheroleofforce,thetensiononthetightsideofconveyerbeltcanreduce,evenarousethetapeoflayeruponlayerprobablyLooseside,thetensionofconveyerbeltcanincrease,evenarousesbeltbrokenprobably,thereforetensionvaluemustbepromptedintime.Additionally,inoperationcourse,thechangeofloadmakeleatherbeltappearsuddenlytensionunusual,tensionstationshouldbegivenpromptadjustment,inordertoreduceleatherbelttohittheaccidentssuchasbeltsliding,beltbroken.4Compensatelineviscouselongationandtheflexibleelongationofconveyerbelt.conveyerbeltcanautomaticelongationastimegoniong,andoccurpermanentelongationundertransitionaloperatingmode,,soitisneededtocompensateplasticityandthechangeofelongationintransitionaloperatingmode.Sinceloadchangecanarouseconveyerbeltslengthchanging,vermicularphenomenoncanalsocausetheelongationofconveyerbelt,andtensileforcechanges,ithastoregulatethelocationoftensionpulleyoften,andguaranteethenormaloperationofbeltconveyer.5Offernecessaryrouteforconveyerbelttocontactagain.Eachbeltconveyerhassomejoints,possibilityincertaincontactforashortwhilecanariseproblem,muststopfirstandthenmakethejointagain.Tensionstationhaspreparedthe3beltbesidesloadforbeltconveyer,socontactingfaultcanbecontactedagainthroughrelaxtensionstationtosolveproblem.Forstretchoutanddrawbackallowingbeltconveyer,whenstoringuptapedistricttostoreupfulltape,wecantakeoutextraconveyerbeltthroughtensionstation.Tensionstation,forbeltconveyertransportationsystem,hastheimportantrolethatcannotreplace,thereforedomesticandinternationalscholarhascarriedoutplentyofresearchesforit,hasdevelopedalotofnewproducts.Itsdevelopmentcoursecanbesumedupapproximatelyfor3followingstagesFirststageispuremechanicaltensionstage.ThemajorproductofthisstageSpiraltensionstationandstationarywinchtensionstationandheaveyhammertensionstation.Heaveyhammertensionstationreachesthepurposethatpulledthroughpulleygroupsandheaveyhammerpiece,,whentheelongationofgummedbelt,itcanabsorbitselongationvoluntarily.Thestationarywinchtensionstationsfunctionoftensionistopullonly,whenbeltelongationtensileforcedropbecauseofvariousreason,itcanbepulledagainonlyititsdiscoveredthatisreartopull.Sincebeltconveyerisdifferentinstartingandruningnormallycourseforthetensionrequirementofconveyerbelt,butthelocationofstationarywinchtensionstationistightedinconveyeroperationcourseandallalongtofix,tosurmountthisshortcoming,wecanalteritforhalfstationarystartstightly,thatistosaytensionpulleyfixedinstartinglocation,whenruningnormallyfixedinoperationlocation,twolocationsusesrouteswitchtocontrol,domesticalsocanproducethiskindoftensionstation.Secondstage,theadjustablestageoftensileforce.Thetypicalproductofthisstageisvoluntarilywinchmechanicalwinchorhydraulicwinchtensionstation.Itstechnologydeveloplookedthatitcanonlyrealizetheautomatictightinsteadyevenspeedstage,itisconstanttomaintainthetensionofgummedbeltinsteadystage.Anditstensileforceundertheinstabilityoperatingconditionsessuchasbrakeorstartingupissameasthestationarywinchidentical.ItsstructuralfeatureshowsWithfloodgate,whenwinchisopened,loosensfloodgate,whenstopingtightfloodgate.Thetimeofwinchoperationisveryshort,andthemostoftimesisinparkingawaitordersstate.Reducethehydraulicofairtightsystemistousecompressedemptywaredriveoilpump,offertightoilcylinderwithpressureoiltotightconveyerbelt.ThatsystemonlyinthecountriessuchasGermanyandEnglgetapplication,4itsstructureiscompact,hasreliablework,itcoveralittlearea.Thestageof3th,developmentautomatictightstage.Majorproducthashydraulicwinchautomatictensionstationandhydraulicautomatictensionstationofbigjar.SuchasKJ2029modelwhichisdomesticandinternationalwidelyusedbeltconveyeresprcialyusedinmines,thehydraulicautomaticofbigjartightsystemusedinAmodelbeltconveyerproducedinFrench,DYIhydraulictypeofbigjartightsystem,thesekindsofautomatictightsystemcanaccomplishthevoluntarilyregulationtensileforceofconveyerbelt,developmentisrespondedquickly,canoffercorrespondingtensileforceunderstartingstageandnormaloperationstagetwooperatingmodes.Hydraulicwinchisinworkingformheroforalongtime,itsstructuralfeatureishavenofloodgate.Automatictensionstationpullsconveyerbeltwiththetensionstationofpullingforce,automatictensionstationcannotonlycomefromaccordingtothehaulageofactivecylindertomoveregulationtensileforce,andcanalsocompensateplasticityandtheflexibleelongationofconveyerbelttowarp,atthesametime,allocatetensionsensorandchangetosendware,tosurveythetensionofconveyerbelt.Whenthetensionofconveyerbeltoccurschange,exceedsthescopeofconveyernormaloperation,thequickmovementoftensionstationadjustthetensionofconveyerbelt,guaranteethenormaloperationofconveyer.Automatictensionstationcombineswithmovingtailcoordinationtouse,itcanrealizeconveyerstailmovewithconveyerbeltstretchoutanddrawbackinconveyerwhiledonotneedtostopmachine,whichhasraisedtheworkingefficiencyofbeltconveyergreatly.Now,thedomesticandinternationalvariousdoesnothavetheunifyviewfortheapplicabilityoftensionstationsyet,thisshowsthatsomeconclusionswhichdeterminesthenaturestillnotperfect,itismusttohaverationconclusiontoguidedesign.Referingtoactualusecondition,winchtensionstationandhydraulictensionstationcanrealizeautomaticcontrolandtensileforceisadjustable,heaveyhammertensionstationhashigherreliability.Alongwiththedevelopmentofindustryandtechnology,thelargescalebeltconveyerthathaslongdistance,bigvolumeandthehighfeatureofbeltspeedhasbecomethemainstreamofdevelopment,soastensionstationputsforward,ishighertoask.Traditionaltensionstationshowsitsshortcominggradually,technicalpeoplewillalreadychangeovertoautomatictightfieldstepbystepastightingsystematicresearchdirection.SuchastheYZL

注意事项

本文(外文翻译--浅谈带式输送机的拉紧装置.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(发送邮件至[email protected]或直接QQ联系客服),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。

[email protected] 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5