最專業(yè)的英文版叉車參數(shù)解釋

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Explanationofforkliftterms

Loadcapacityandloadcenter

Theloadcapacityofaforklifttruckvaries

dependingonthehorizontaldistancebetweenthe

verticalsurfaceoftheforksandthecenterof

gravityoftheload.Aforklifttruckisequipped

withaloadchartindicatingthisrelationship

betweenthedistanceandtheloadcapacity.TheX

shownonthisloadchartiscalledtheloadcenter,

andtheYwhichcorrespondstotheXisthe

maximumloadcapacity.

Dimension

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Maximumforkheight

Themaximumforkheightdenotestheheightfromthegroundtotheuppersurfacesoftheforkswhentheforksareraisedtotheirhighestpositionwiththemastpositionedvertically.

Freelift

Thefreeliftisthemaximumliftingheightoftheforkswiththemastpositionremainingunchanged.

Overalllength

Withforks: Thelengthfromthefrontendoftheforkstotherearendofthetruck

body.

Withoutforks: Theoveralllengthminusthelengthoftheforks,i.e.,thelengthfrom

the verticalsurfaceoftheforkstotherearofthetruckbody.

Overallwidth

Themaximumwidthofaforklifttruckwiththesteeringwheelsetinthestraightaheadposition.

Overallheight

Theheighttothetopoftheforklifttruck.Themastoverallheightisclassifiedin

twocategories:mastextendedoverallheightwhentheforksarefullyraisedandmastloweredheighttheforksarefullylowered.Themastloweredoverallheightmustbecomparedtotheheightoftheoverheadguard.Thisdimensionisessentialwhenjudgingwhetherornotaforklifttruckwillbeabletopassthroughandentrancetoabuildingorsomestructure.

Wheelbase

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Thehorizontaldistancebetweenthecentersofthefrontandtherearaxle.

Frontoverhang

Distancefromthefrontaxlecentertotheverticalsurfaceoftheforks.

Rearoverhang

Distancefromrearaxlecentertorearofthetruckbody.

Tread

Distancebetweenthecenteroftheleftandrighttiresonthesameaxle,orindual-tiremodels,thedistancebetweenthecentersoftheleftandrightdualtires.

Turningradius

Theradiusofthelocusdrawnbytheextremeoutwardside

ofthetruckbodywhentheforkliftturnseitherrightor

leftattheminimumforwardspeedwiththesteeringwheel

turnedcompletelyiscalledthe “outsideminimumturning

radius”.Theradiusofthelocusdrawnbytheinnerfront

tireiscalledthe “insideminimumturningradius ”.

Rightangle(90 °)stackingaisle

Therightanglestackingaisledenotestheminimumwidthofanaisleinwhichaforklifttruckisabletoloadand

unloadaftercompletinga90degreeturn.

Rightangle(90 °)intersectingaisle

Theminimumturningradiusindicatesthesharpnessofaturn,butitdoesnotindicatehowlargeaspaceisrequiredtomakeaturn.Therightangleintersectingaisleisdefinedastheminimumwidthofaislewhichintersectsatrightanglesthroughwhichtheforklifttruck

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isabletopass.Thecatalogdataisforanon-loadedwiththeforkssetattheirwidestposition.

Forklength

Thelengthfromtheverticalsurfacesoftheforkstothefrontendoftheforks.

Floorheight

Theheightfromthegroundtotheupperfaceofthefloorboard.

Stepheight

Theheightfromthegroundtotheupperfaceofstep.

Seatheight

Theheightfromthegroundtotheupperfaceoftheseatwhentheoperator[90kg(199lbs)]isseated.

Headclearance

Theheadclearancefromtheunderfaceofoverheadguardtotheupperfaceofseatwhentheoperator[90kg(199lbs)]isseated.

Counterweightheight

Theheightfromthegroundtothetopofthecounterweight.

Backrestheight

Theheightfromupperoftheforkstothetopofbackrest.

Maximumforkspread

Thedistanceofouterforkswhentheforksaremovedontheoutsidernotchesofcarriage.

Minimumforkspread

Thedistanceofouterforkswhentheforksaremoveontheinsidenotchesofcarriage.

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Maximumgroundclearance

Theheightfromthegroundattheposition

wheretheclearancefromthegroundis

consideredminimum,excepttheelevating

portionoftheloadingdeviceandaroundthe

wheels.

C1: undermast

C2: underpowerunit

C3: underframe

Gradeclearance

Theangle( α)betweentheplanecontactingthefronttiresandpassingthefrontlower

endofthemastand groundiscalledthe “Approachangle”.

Theangle( β)betweentheplanecontactingtherearwheelsandpassingtherearlower

endoftheforklifttruckandgroundiscalledthe “Departureangle ”.

Theangle( γ)betweenthelaneintersectingontheunders idepartsofthebodywhere

thefirstplaneistangenttothefronttiresandthesecondplaneistangenttotherear

tiresiscalled “Rampbrakeoverangle”.

Theseanglesareessentialforassessingtheabilityofaforklifttrucktoclimboveranobstacleonthegroundwhentraveling.

ApproachAngle DepartureAngle Rampbreak-overAngle

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Performance

Theperformanceofforklifttruckischangedbyroadsurfaceandoiltemperatureofthetransmissionorreductiongearetc.

Thevalueonthishandbookshowsontheconcreteorasphaltroadandoiltemperatureasbelow.

Engineoil:

morethan50

oC(122

oF)

Transmission:

morethan50oC(122

oF)

Torqueconverter:

morethan80

oC(176

oF)

Reductiongear:

morethan50

oC(122

oF)

Hydraulictank:

morethan40

o

o

C(104

F)

Lifting/Loweringspeed

Thespeedoftheforksastheymoveupwardsanddownwardsisexpressedbothfortheirloadedstateandunloadedstate.Theloweringspeedhasbeenlimited(reduced)topreventbothvehicleinstabilityanddamagetotheloadwhichcanresultfromsuddendropscausedbytheweightoftheload.

Travelspeed

Themaximumtruckspeedwhentheacceleratorpedalisfullyopened.

Drawbarpull

Theforklifttruckisoftenusedasatractor

foratrailerorotherequipment.Insuch

instances,themaximumtractionvaries

accordingtotheenginetorque,reductiongear

ratio,roadsurfaceandotherfactors.Italso

varieslargelydependingonwhetherornotthe

truckisloaded.

Gradeability

The“Gradeability ”indicatestheabilityof

theforklifttoascendaslope.Thisability

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differsdependingonwhetheritisloadedornot.TheunitofmeasuringtheGradeabilityvariesfrommanufacturertomanufacturer.Theconversiontablegivenbelowmaybeutilizedforcomparisonpurposes.TheGradeabilityofTailiftforklifttrucksisnormallyexpressedintangentpercent(tan0%).

GradeabilityConversionTable

Degree

Fraction

tan0%

sin0%

Degree

Fraction

tan0%

sin0%

(0)

(B/A)

(B/A)

(B/C)

(0)

(B/A)

(B/A)

(B/C)

1

1/57.2

1.8

1.8

24

1/2.2

44.5

40.6

2

1/28.6

3.5

3.5

25

1/2.1

46.6

42.2

3

1/19.1

5.2

5.2

26

1/2.1

48.8

43.8

4

1/14.3

7.0

7.0

27

1/2.0

51.0

45.4

5

1/11.4

8.8

8.7

28

1/1.9

53.2

47.0

6

1/9.5

10.5

10.5

29

1/1.8

55.4

48.5

7

1/8.1

12.3

12.2

30

1/1.7

57.7

50.0

8

1/7.1

14.0

13.9

31

1/1.7

60.0

51.5

9

1/6.3

15.8

15.6

32

1/1.6

62.5

53.0

10

1/5.7

17.6

17.4

33

1/1.5

64.9

54.5

11

1/5.1

19.4

19.1

34

1/1.5

67.4

55.9

12

1/4.7

21.3

20.8

35

1/1.4

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