最专业的英文版叉车参数解释

World-LiftSalesManual2005PAGE6ExplanationofforklifttermsLoadcapacityandloadcenterTheloadcapacityofaforklifttruckvariesdependingonthehorizontaldistancebetweentheverticalsurfaceoftheforksandthecenterofgravityoftheload.Aforklifttruckisequippedwithaloadchartindicatingthisrelationshipbetweenthedistanceandtheloadcapacity.TheXshownonthisloadchartiscalledtheloadcenter,andtheYwhichcorrespondstotheXisthemaximumloadcapacity.DimensionMaximumforkheightThemaximumforkheightdenotestheheightfromthegroundtotheuppersurfacesoftheforkswhentheforksareraisedtotheirhighestpositionwiththemastpositionedvertically.FreeliftThefreeliftisthemaximumliftingheightoftheforkswiththemastpositionremainingunchanged.OveralllengthWithforks:Thelengthfromthefrontendoftheforkstotherearendofthetruckbody.Withoutforks:Theoveralllengthminusthelengthoftheforks,i.e.,thelengthfromtheverticalsurfaceoftheforkstotherearofthetruckbody.OverallwidthThemaximumwidthofaforklifttruckwiththesteeringwheelsetinthestraightaheadposition.OverallheightTheheighttothetopoftheforklifttruck.Themastoverallheightisclassifiedintwocategories:mastextendedoverallheightwhentheforksarefullyraisedandmastloweredheighttheforksarefullylowered.Themastloweredoverallheightmustbecomparedtotheheightoftheoverheadguard.Thisdimensionisessentialwhenjudgingwhetherornotaforklifttruckwillbeabletopassthroughandentrancetoabuildingorsomestructure.WheelbaseThehorizontaldistancebetweenthecentersofthefrontandtherearaxle.FrontoverhangDistancefromthefrontaxlecentertotheverticalsurfaceoftheforks.RearoverhangDistancefromrearaxlecentertorearofthetruckbody.TreadDistancebetweenthecenteroftheleftandrighttiresonthesameaxle,orindual-tiremodels,thedistancebetweenthecentersoftheleftandrightdualtires.TurningradiusTheradiusofthelocusdrawnbytheextremeoutwardsideofthetruckbodywhentheforkliftturnseitherrightorleftattheminimumforwardspeedwiththesteeringwheelturnedcompletelyiscalledthe“outsideminimumturningradius”.Theradiusofthelocusdrawnbytheinnerfronttireiscalledthe“insideminimumturningradius”.Rightangle(90°)stackingaisleTherightanglestackingaisledenotestheminimumwidthofanaisleinwhichaforklifttruckisabletoloadandunloadaftercompletinga90degreeturn.Rightangle(90°)intersectingaisleTheminimumturningradiusindicatesthesharpnessofaturn,butitdoesnotindicatehowlargeaspaceisrequiredtomakeaturn.Therightangleintersectingaisleisdefinedastheminimumwidthofaislewhichintersectsatrightanglesthroughwhichtheforklifttruckisabletopass.Thecatalogdataisforanon-loadedwiththeforkssetattheirwidestposition.ForklengthThelengthfromtheverticalsurfacesoftheforkstothefrontendoftheforks.FloorheightTheheightfromthegroundtotheupperfaceofthefloorboard.StepheightTheheightfromthegroundtotheupperfaceofstep.SeatheightTheheightfromthegroundtotheupperfaceoftheseatwhentheoperator[90kg(199lbs)]isseated.HeadclearanceTheheadclearancefromtheunderfaceofoverheadguardtotheupperfaceofseatwhentheoperator[90kg(199lbs)]isseated.CounterweightheightTheheightfromthegroundtothetopofthecounterweight.BackrestheightTheheightfromupperoftheforkstothetopofbackrest.MaximumforkspreadThedistanceofouterforkswhentheforksaremovedontheoutsidernotchesofcarriage.MinimumforkspreadThedistanceofouterforkswhentheforksaremoveontheinsidenotchesofcarriage.MaximumgroundclearanceTheheightfromthegroundatthepositionwheretheclearancefromthegroundisconsideredminimum,excepttheelevatingportionoftheloadingdeviceandaroundthewheels.C1:undermastC2:underpowerunitC3:underframeGradeclearanceTheangle(α)betweentheplanecontactingthefronttiresandpassingthefrontlowerendofthemastandgroundiscalledthe“Approachangle”.Theangle(β)betweentheplanecontactingtherearwheelsandpassingtherearlowerendoftheforklifttruckandgroundiscalledthe“Departureangle”.Theangle(γ)betweenthelaneintersectingontheundersidepartsofthebodywherethefirstplaneistangenttothefronttiresandthesecondplaneistangenttothereartiresiscalled“Rampbrakeoverangle”.Theseanglesareessentialforassessingtheabilityofaforklifttrucktoclimboveranobstacleonthegroundwhentraveling.ApproachAngleDepartureAngleRampbreak-overAnglePerformanceTheperformanceofforklifttruckischangedbyroadsurfaceandoiltemperatureofthetransmissionorreductiongearetc.Thevalueonthishandbookshowsontheconcreteorasphaltroadandoiltemperatureasbelow.Engineoil:morethan50oC(122oF)Transmission:morethan50oC(122oF)Torqueconverter:morethan80oC(176oF)Reductiongear:morethan50oC(122oF)Hydraulictank:morethan40oC(104oF)Lifting/LoweringspeedThespeedoftheforksastheymoveupwardsanddownwardsisexpressedbothfortheirloadedstateandunloadedstate.Theloweringspeedhasbeenlimited(reduced)topreventbothvehicleinstabilityanddamagetotheloadwhichcanresultfromsuddendropscausedbytheweightoftheload.TravelspeedThemaximumtruckspeedwhentheacceleratorpedalisfullyopened.DrawbarpullTheforklifttruckisoftenusedasatractorforatrailerorotherequipment.Insuchinstances,themaximumtractionvariesaccordingtotheenginetorque,reductiongearratio,roadsurfaceandotherfactors.Italsovarieslargelydependingonwhetherornotthetruckisloaded.GradeabilityThe“Gradeability”indicatestheabilityoftheforklifttoascendaslope.Thisabilitydiffersdependingonwhetheritisloadedornot.TheunitofmeasuringtheGradeabilityvariesfrommanufacturertomanufacturer.Theconversiontablegivenbelowmaybeutilizedforcomparisonpurposes.TheGradeabilityofTailiftforklifttrucksisnormallyexpressedintangentpercent(tan0%).GradeabilityConversionTableDegreeFractiontan0%sin0%DegreeFractiontan0%sin0%(0)(B/A)(B/A)(B/C)(0)(B/A)(B/A)(B/C)11/57.21.81.8241/2.244.540.621/28.63.53.5251/2.146.642.231/19.15.25.2261/2.148.843.841/14.37.07.0271/2.051.045.451/11.48.88.7281/1.953.247.061/9.510.510.5291/1.855.448.571/8.112.312.2301/1.757.750.081/7.114.013.9311/1.760.051.591/6.315.815.6321/1.662.553.0101/5.717.617.4331/1.564.954.5111/5.119.419.1341/1.567.455.9121/4.721.320.8351/1.470.057.4131/4.323.122.5361/1.472.758.8141/4.024.924.1371/1.375.460.2151/3.726.825.8381/1.378.161.6161/3.528.727.5391/1.281.062.9171/3.330.629.2401/1.283.964.3181/3.132.530.9411/1.286.965.6191/2.934.432.5421/1.190.066.9201/2.736.434.2431/1.193.368.2211/2.638.435.8441/1.196.669.5221/2.540.437.4451/1.0100.070.7231/2.442.439.0    WeightTruckweight:Totalweightofaforklifttruckwithoutload.Grosstruckweight:Thetruckweightplusthemaximumload.Inaforklifttruckthegrosstruckweightalsoincludestheweightofanoperator.Weightdistribution:Theweightofatruckinbothanunloadedandloadedstateisdistributedtothefrontwheelsandrearwheels.