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1、附录A英文原文ABriefDescriptionofLiftTruckSystemDesignMartinW.CrouseAbstract：Inthispaper,dumptruckthroughabriefdesignanalysis,inviewofthelengthofthelargerfeaturesofheavy-dutydumptruck,liftingthesystemfromnodeStructuredesignandhydraulicdesignofthecorrespondingmeasuresforth
2、eliftingofheavytruckdesignacertainguidingfunction.Keywords：heavy-duty；lifting；system1.ThemainstructureofdumptruckDumptruck,includingthestructureofthemainliftsystem,chassis,frame,vice,componentcompartments,2.liftingbodydesignandanalysisHeavy-dutydumptruckliftingsyst
3、eminthedesignprocessofthemainissuesthatneedtobeaddressedinclude:liftingformsofselection,intheliftcarintheprocessofstability,beforeandafterthebridge,thereasonablenessofaxle-loaddistributionandhydraulicsystemreliability.Chassisbyfollowingthedesignof7.2metersonconcret
4、eexamplesofthedumptruck,dumptruckliftingmechanismonthegeneralideaofsystemdesign.2.1CompartmentvolumetodetermineinitialChassisinaccordancewiththeparameters:Wheelbase3900mm+1350mm,rearoverhang900mm,setthequalityof17500kg,andthewhole1600mmrearoverhangfortherequesttode
5、terminecar-size5600mm*2300mm*1500mm.Determinetheinitialcarpositioninthechassisforthecarbackoutoftheback-endchassisframe870mm.Indeterminingtheformoflifting,theneedforfurtheranalysisofCountbeforeandafterthebridgeandaxle-loaddistributionofthecartoverifythelocationofth
6、evehicleinthesecondcategoryisreasonable.2.2determinetheformofliftingLifttruckusedmainlyintheformofF-type,T-style,front-straighttopform.TnF-type,T-style,front-straighttopthreeidentifiedintheformofliftingoneofthemostsuitable,weneedthreeconditionsontheanalysisofcalibr
7、ation.Lifttheformofthethreehasitsownadvantagesanddisadvantagesofpre-straight-topcompactstructure,liftingandhighefficiency.Simpleprocesswithlowcosts.However,afterliftingthestabilityofpoorroadconditionsonthehigher;F-typeandT-typeliftingmechanismagooddegreeofcross-cut
8、tingsteel,smoothliftingsmoothrotation,thefueltankoftheworkpistonshorttrip,buttheliftcoefficientthantheGreat.Inordertodeterminewhetherthechoiceofw
