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1、河北工程大学毕业设计（论文）外文原文：EXCAVATESTHECARLOADERDOMESTICPRESENTSITUATIONANDTHEMARKETDEVELOPMENTANALYSISTheloaderdiggerissocalled“twofavour”.Becauseithasspecialstructure,loadsdevicebeingtheheadandtheequipmentfortheexcavationbehind.intheworkplace,youneedtoturnthechair,c
2、ompletingthechangefromloadertotheexcavatorloaderdiggerismainlyusedforthehighwayconstructionandprotectofthecityandvillage,theelectriccablebuild,electricpowerandairportengineering,municipalservicesconstruction,farmlandirrigationconstruction,villageresidenceconst
3、ruction,openingmountaintotakestoneandvarioussmallscaledandmulti-functionengineeringmachine,generallyusedinthesmallprojectafterthecompletionofthebigones.FIRST:ACLASSIFICATIONOFTHELOADERDIGGERTheloaderdiggerissocalled“twofavour”havingtwokindsoffuncitionsoflading
4、andscoopingoutinthemeantime.TheclassificationsareasfallowsONE:fromthestructureAccordingtothestructure,loaderdiggershavetwokindsofforms:oneiswithobliquetonesmoveframe,thedingingdevicecanbemovedwithside,whichiseasytoworkinthespecialplace,thecenterofgravityislowe
5、rwhenittransports.Itisadvantageoustoloadingandtransporting.Theweaknessis:becauseoftherestrictionofthestructure,thegroundjackusuallyadoptsverticalleg.Thesupportingpointiswithinthewheeledge,thedistanceofthetwosupportingpointisrelativelysmall.Whilescoopingthewhol
6、emachine’sstabilityisbad.(especiallythescoopingdevicemovestooneside).Thefunctionalmainpointofthiskindofmachineisintheaspectsofloading,producingmoreinEurope;theexcavationdeviceofthelattercan’tmovetoside,thewholeexcavationdevicecanmake180°turn-overthroughtherota
7、rysupporting,thegroundjackislikethefrogleg,thesupportingpointcanstretchoutsidesidethewheel,thestabilityisgoodwhenexcavating,whichisadvantageoustotheexaltationofwithexcavationability.Becausehavingnoobliquetonesmoveframe,thecostofthewholemachineislower.Theweakne
8、ssisthebuckethangsatthetruck’stail,thesizeislong,whenthelocomotiveisinconveyanceandloads,thestabilityisbad,whichhascertainscooping,withtheUSproducingmost.10河北工程大学毕业设计（论文）TWO:fromth
