高速带式输送机的设计-外文翻译.doc

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1、附件AesignofHighSpeedBeltConveyorsG.Lodewijks,TheNetherlands.SUMMARYThispaperdiscussesaspectsofhigh-speedbeltconveyordesign.Thecapacityofabeltconveyorisdeterminedbythebeltspeedgivenabeltwidthandtroughingangle.Beltspeedselectionhoweverislimitedbypracticalconsiderations,whicharediscussedinthispa

2、per.Thebeltspeedalsoaffectstheperformanceoftheconveyorbelt,asforexampleitsenergyconsumptionandthestabilityofit'srunningbehavior.Amethodisdiscussedtoevaluatetheenergyconsumptionofconveyorbeltsbyusingthelossfactoroftransport.Withvariationofthebeltspeedthesafetyfactorrequirementsvary,whichwilla

3、ffecttherequiredbeltstrength.Anewmethodtoaccountfortheeffectofthebeltspeedonthesafetyfactorispresented.Finally,theimpactofthebeltspeedoncomponentselectionandonthedesignoftransferstationsisdiscussed.1INTRODUCTIONPastresearchhasshowntheeconomicalfeasibilityofusingnarrower,fasterrunningconveyor

4、beltsversuswider,slowerrunningbeltsforlongoverlandbeltconveyorsystems.Seeforexample[I]-[5].Today,conveyorbeltsrunningatspeedsaround8m/sarenoexceptions.However,velocitiesover10m/supto20m/saretechnically(dynamically)feasibleandmayalsobeeconomicallyfeasible.Inthispaperbeltspeedsbetweenthe10and2

5、0m/sareclassifiedashigh.Beltspeedsbelowthe10m/sareclassifiedaslow.Usinghighbeltspeedsshouldneverbeagoalinitself.Ifusinghighbeltspeedsisnoteconomicallybeneficialorifasafeandreliableoperationisnotensuredatahighbeltspeedthenalowerbeltspeedshouldbeselected.Selectionofthebeltspeedispartofthetotal

6、designprocess.Theoptimumbeltconveyordesignisdeterminedbystaticorsteadystatedesignmethods.Inthesemethodsthebeltisassumedtobearigid,inelasticbody.Thisenablesquantificationofthesteady-stateoperationofthebeltconveyoranddeterminationofthesizeofconveyorcomponents.Thespecificationofthesteady-stateo

7、perationincludesaquantificationofthesteady-staterunningbelttensionsandpowerconsumptionforallmaterialloadingandrelevantambientconditions.Itshouldberealizedthatfindingtheoptimumdesignisnotaone-timeeffortbutaniterativeprocess[6].Designfine-tuning,dete