【文档说明】叉车稳定性及其他安全问题中英双语版.docx,共(19)页,26.908 KB,由小魏子文库上传
转载请保留链接:https://www.ichengzhen.cn/view-234395.html
以下为本文档部分文字说明:
Forkliftstabilityandothertechnicalsafetyissues叉车稳定性及其他安全问题Thestabilityofforkliftshasimpactsonsafetyinrespectof:叉车稳定性会以下的安全问题1.Th
elikelihoodofforwardtipover–thatis,theforklifttiltingforward;前向翻车的可能性-是指叉车前倾的情形2.Thelikelihoodofsidetipover–thatis,theforkl
ifttiltingtoeitherside;and侧向翻车的可能性-是指叉车向一侧翻车3.Themaximumlevelsofbrakingthatcanbeappliedforanyloadingsituat
ion,andhencethestoppingdistance–toohighalevelofbrakingwillinitiateforwardtipover;and在任何条件下的最大的刹车力度,比如载货条件或者高位提升等都可能前向翻车4.Themaximuml
evelsofrearwardacceleration-toohighalevelwillalsoinitiateforwardtipover.在任何条件下后向极大的加速度或者高位操作可能导致前向侧翻。1.Counte
rbalanceforklifts平衡重叉车ThisreportandtheassociatedMonashUniversityAccidentResearchCentreproducedguidebook(AGuidebookofIndustrialTrafficManagem
ent&ForkliftSafety)focusoncounterbalanceforkliftsofthestyleshownbelow,astheyarethemostcommonstyleusedinVictoria本报告机Monsah大学事故研究中心制作了一个关于平衡重叉车的指
导手册。(工业车辆管理及叉车安全手册)Theseforkliftsgenerallyhave:这些叉车具有以下要素•Thebodywithitscounterbalanceandcagerigidlyattac
hedtothefrontordriveaxle;车身具有配重块和一个结实的货叉架在叉车前轮轴上•Themastpivotedatornearthefrontaxle;门架可以在前轮轴上或接近轮轴的位置摆动
•Thesteeraxlepivotedaboutitscentresothatthesteertyresremainincontactwiththegroundwheretherearesmall
variationsintheleveloftheoperatingsurface;and转向轴在中心位置转动,这样转向轮就可以保持和地面的接触,即使地面有些小的不平整•Brakesfitte
dtothefrontdriveaxleonly.只有前轮有制动•Fortheonebody,forkliftscanbefittedwith:同一类的车身可以配置•Diff
erentmaststosuitvariousliftheights.Theserangefrom1500to7500mm.Thenumberofmaststagescanvarydependingonavailableheadroo
m.不同高度的门架。这些范围从1500-7500mm。门架梯级依据屋顶高度。•Differentwheelsandtyres–solid,pneumaticshapedcushionorpneumatictyres;不同轮毂及轮胎-实心胎
、充气胎及充气弹性胎等•Arangeofforktynessuitedtotheforkliftoperation,withorwithoutsideshift;and不同货叉类型来适配不
同工况,是否具有侧移器及•Otherspecialistattachments.其他特别专用属具2.“Stabilitytriangle稳定三角形Therearethreewaysacounterbalanceforkliftcantipoverforwardsor
sideways:有三种可能性导致平衡重叉车侧翻或前翻1.Itcantipforwardwiththecontactpointsofthedriveaxletyresandthegroundactingasthepivot;它前翻的原因可能是接触点的轮
胎和地面原地打转2.Itcantipsidewaystotheleftwithtipoverinitiallypivotingalongalinethroughthelefthandfronttyrecontactpointandthepivotpointoftherear
steeraxle;or它左侧翻的原因可能一个左前轮打转和后转向大幅摆动3.Itcantipsidewaystotherightwithtipoverinitiallypivotingalongalinethr
oughtherighthandfronttyrecontactpointandthepivotpointoftherearsteeraxle.它右侧翻的原因可能一个右前轮子打转和后转向大幅摆动Thesethreelinescombineddefinethestabilitytriangl
easshowninthediagram.有三条线来定义了稳定三角形Notethattherearsteeraxlehasalimittoitstravelarounditspivotpoint,sothatatsomepointsidetipoverchangestopivotabou
tthetwolefthandortworighthandtyres.Atthisstagetheforkliftsometimesstopstippingoverandfallsbackonitswheels.Mostlyhowevertipovercon
tinues.请注意转向轮轴需要到极限,这样的话侧翻可能会改变。在这个条件下侧翻可能会停止和回到承载轮平衡。大部分情况下还是会继续侧翻。3.Centreofmass重心Anyphysicalobjecthasapointlocatedin
threedimensionswhereitactsasthoughallitsmassislocated.Thisisknownasitscentreofmass.许多物体在三维上都有重心Itisapointaboutwhichtheforkliftwouldbalanceifplacedont
opofapointedsupport.许多情况下叉车获得平衡,只要这个点上给与支持。Whentheforkliftisstationary,theonlyforceactingonthispointistheforceofgravityverticall
ydown.Forastationaryforklift,providedthiscentreofmassiswithinthestabilitytriangle,theforkliftwillneithertipforwardsorsideways.
当平稳行驶的时候,只有一个作用力就是重力,那就可以保证重心在稳定三角形内。Whenweplaceanincreasingloadontheforktynes,thecentreofmassoftheforkliftandloadcombined
movesforwardtowardsthefrontaxle当我们增加重量在货叉上,载荷中心就会前移Ifsufficientloadisaddedtheforkliftwillreachapointwhereittipsfo
rward.Thisgenerallyoccursifanoperatortriestoliftaloadthatismuchtooheavyfortheforklift,andthesteeraxleliftsofftheground.当货物足够重时,中心点临界后,就会
前翻。基本上会出现在司机想要超载或者转向轮离地。4.Dynamicforces,centreofmassandstability活动受力,重心及稳定性Whenaforklifttravelsonaslope,orwhenaforklif
tistravellingaroundacorneratsomespeed,orwhenaforkliftbrakesoraccelerates,forcesaredevelopedthatactontheforklift
sidewaysortothefrontorrear.当叉车行驶在斜坡或在拐弯的时候,当叉车刹车和加速的时候,受力会作用在叉车侧面或前后。Ifthesumofalltheforcesactingonthecentreofmassactsuchthattheypassoutsi
dethestabilitytriangle,thentheforklifteithertipsforwardsofsideways.当所有受力作用在重心,导致它们偏出稳定三角形,就会导致侧翻或前翻。5.Tipoversidewaysversu
stipoverforwards侧翻与前翻Asnotedabove,addingloadtothetynesmakesthecentreofmassoftheforkliftandtynescombined
moveforwardclosertotheforwardtipoveraxisofthestabilitytriangle.Theforkliftbecomesprogressivelylessstab
leinrespectofforwardtipover.如上面所述,增加载荷至叉车重心,以及货叉接近前向轴心,会导致重心前移至侧翻的稳定三角形轴线。叉车会渐渐变得不稳定,从而导致前向侧翻。Howeverthec
entreofmassatthesametimeismovingawayfromthetwoothertippingaxis.SotheForkliftbecomesmorestableinrespectoftippingsideways.无论如何叉车的重心会远离稳定
轴线,这样叉车就能保持更稳定。Henceforkliftsaremuchmorelikelytotipsidewayswhenempty–75%oftheseincidentsoccurwhentheforkliftisempty.所以叉车在空载的时候更容
易侧翻-75%的事故发生在空车的时候。Andtheyaremorelikelytotipforwardwhenloaded.而载货后更容易发生前翻。6.Stabilityandraisedloads稳定性与举升的载荷Raising
theloadreducesstabilityinalltipoverdirectionsasthesizeofside,frontorrearforcesrequiredtocauseforwardorsideortipoverarereduced.举升载荷后会降低稳定性,导致不同方向
的侧翻。7.Australianandinternationalstandardsforforkliftstabilityorsafety澳大利亚和国际关于叉车稳定性和安全的标准Alistofthesestandardsisshownbelow.Notethatinaddi
tionJapan,amajorsupplierofforklifts,hasitsownstandards.一些列的标准显示如下。请注意在日本主要的叉车供应商有其自身的标准。Andthereareotherstandardsthatalsoimpactonf
orkliftsafetyincludingstandardsforpalletsandcontainers.还有其他的标准同样会影响叉车额安全,包括托盘和集装箱STANDARD标准COMMENT说明AS/NZS1425:1999LPGasfuels
ystemsforvehicleengines车辆液化燃油系统ForLPGpoweredforklifts液化天然气叉车AS/NZS1596:2002ThestorageandhandlingofLPGas存储液化天然气ForLPGpoweredforklifts液
化气叉车AS2402-1994Tractionbatteries-Lead-acid铅酸动力电池Forbatterypoweredforklifts电动叉车AS2548.1-1998Batterychargersforlead-acidtractionbatteries
-Batterychargersforventedcells动力电池充电器Forbatterypoweredforklifts电动叉车AS1763-1985Industrialtrucks-Glossaryofterms工业车辆名词术语AS2359-1995Poweredi
ndustrialtrucks–动力工业车辆Part1:GeneralRequirements.Part2:Operation.Part3:Counterbalancedforklifttrucks-Stabilitytests.Part4:Reachandst
raddleforklifPrincipalAustralianstandardforforklifts.BeingprogressivelychangedbytheadoptionofequivalentISOstandarttrucks-Stabilityte
sts.Part5:Controlsymbols.Part6:SafetyCode.Part7:Terminology.Part8:Palletstackersandhigh-liftplatformtrucks–S
tabilitytests.Part9:High-liftridertrucks–Overheadguards.Part10:Forklifttrucks–Hookontypeforkarms-Vocab
ulary.Part11:Forklifttrucks–Hookontypeforkarms–Dimensions.Part12:Hazardousareasds澳大利亚叉车标准AS3713-1989Acoustics-Industrialtrucks-N
oisemeasurement叉车遭遇AS4972(Int)-2001Counterbalancedtruckshandlingfreightcontainersfor6m(20ft)lengthandabove-Additionalstabilitytests平衡重叉车处理的集装箱Aust
ralianversionofISO10525–additionalnotesonrisksaddedAS4973-2001Industrialtrucks-Inspectionandrepairofforkarm
sinserviceonfork-lifttrucks检查和维修叉车叉齿BasedonISO5057:1993ISO1074:1991Counterbalancedfork-lifttrucks;sta
bilitytests平衡重叉车稳定性测试EquivalenttoAS2359Pt3:1995ISO2328:1993Fork-lifttrucks;hook-ontypeforkarmsandforkarmcarriages;mountingdimensions叉车连接型货叉Equivale
nttoAS2359Pt11:1995ISO2330:2002Fork-lifttrucks-Forkarms-Technicalcharacteristicsandtesting货叉技术特征和测试ISO2
331:1974Fork-lifttrucks–Hookontypeforkarms–Vocabulary连接型货叉词汇EquivalenttoAS2359Pt10:1995ISO3184:1998Reachandstr
addlefork-lifttrucks-Stabilitytests前移式和跨腿式叉车稳定性测试EquivalenttoAS2359Pt4:1995ISO5057:1993Industrialtrucks;inspectionandrepairoffork
armsinserviceonfork-lifttrucks叉车检查和维修EquivalenttoAS4973:2001ISO5766:1990Palletstackersandhighliftplatformtrucks.Stabili
tytests托盘堆高机和升降台稳定性测试EquivalenttoAS2359Pt8:1995ISO5767:1992Industrialtrucksoperatinginspecialconditionofstackingwithmasttiltedforward;additionalstabi
litytest叉车高位前倾ISO6292:1996Poweredindustrialtrucksandtractors-Brakeperformanceandcomponentstrength动力叉车和拖车的刹车Tobean
AustralianStandard-additionalnotesrelatingtoriskISO10525:1997Counterbalancedtruckshandlingfreightcontainersof6m(20ft)leng
thandabove-Additionalstabilitytests平衡重叉车处理的集装箱EquivalenttoAS4972(Int)2001lessAppendixZZISO10658:1996Industrialtrucksoper
atinginspecialconditionsofstackingwithloadlaterallydisplacedbypowereddevices-Additionalstabilitytest叉车堆垛和直接摆放ISO13284:2003Fork-lifttrucks-
Fork-armextensionsandtelescopicforkarms-Technicalcharacteristicsandstrengthrequirements货叉延长套ISO13562:2000
Industrialvariable-reachtrucks-Part1:Stabilitytests.Part2:Additionalstabilitytestsfortruckshandlingfreightcontainers
of6mlengthandabove.ISO13563-1:2001Singlesideloadingfork-lifttrucks-Part1:Stabilitytests.Part2:Additionalstabilitytestsfortruckshandling
freightcontainersof6mlengthandabove单面载货CoveredinAS2359Pt1:1985:AppendixA5ISO15794:2001Bi-directionalandmulti-direction
alfork-lifttrucks-Stabilitytests双向和多向叉车ISO15870:2000Poweredindustrialtrucks-Safetysignsandhazardpict
orials-Generalprinciples动力叉车的安全标识ISO15871:2000Industrialtrucks-Specificationsforindicatorlightsforcontainerhan
dlingandgrapplerarmoperations叉车灯光8.Australianandinternationalstandards-forkliftstabilitytests关于叉车稳定性测试的澳大利亚和国际标准Therequiredteststodete
rminethemaximumratedcapacityofforkliftsareincludedinAS2359anditsparts,andinAS4972(Int).ForotherstylesofforklifttrucksISO
13563orISO15794mayapply要标识额度载荷能力测试的标准是AS2359和AS4972。其他类型的叉车标准有ISO13563和ISO15794Ingeneral,foreveryforkliftst
yle,therearefourstabilitytests,plusothersasappropriateforthestyleofforklift.总的来说,每种型号的叉车都有自己的稳定性测试,还有其他相关需要
的关于该型号叉车的测试Australianandinternationalstandards-counterbalanceforkliftstabilitytests澳大利亚和国际标准-平衡重叉车Forcounterbalanceforkl
iftstherearefourtests:关于平衡重叉车有四个测试项目1.Stacking–withthemastverticalandforksatmaximumheight,themaximumloadisdeterminedwhenthefor
kliftistiltedforwardonaplatformto:堆高-门架垂直提升至最大高度,最高处的载荷能力由前倾至最大时的能力来决定•Aslopeof4%forforkliftsofratedcapac
ityupto4999kg;and在4度的斜坡测试最大至4999kg的载荷能力•Aslopeof3.5%forforkliftswithcapacitiesof5000kgto50000kg
在3.5度的斜坡测试至5000-50000kg载荷能力2.Travelling–withthemastatfullrearwardtiltandforkslowered,themaximumloadisdeterminedwhent
heforkliftistiltedforwardonaplatformtoaslopeof18%行驶-门架前倾到底和货叉降落,最大载荷能力由18度的坡道行驶的载荷能力来决定3.Stacking–withthemastatfullrearwardtiltandforksat
maximumheight,themaximumloadisdeterminedwhentheforkliftistiltedsidewardsonaplatformtoaslopeof6%堆高-门架后仰到底和货叉在最高处,最大的载荷能力由6度的斜坡
上载荷能力来决定4.Travelling–withthemastatfullrearwardtiltandforkslowered,theforkliftistiltedsidewaysonaplatformto•aslopeofupto40%forforklifts
ofratedcapacityupto4999kg;and•Aslopeof50%forforkliftswithcapacitiesof5000kgto50000kgdependingontheforkliftcapacityandmaximumspeed行驶-门架完全后仰和
货叉降落,叉车在侧面倾斜的平台上剩余40%的额定载荷能力-4999kg以下的叉车剩余50%的额定载荷能力-5000-5000kg的叉车Tests1and2primarilydetermineforwardtipoverstabi
lity,test3determinessidetipoverstabilitywhenloaded,andtest4determinessidetipoverstabilitywhenempty.测
试1和测试2初步确定前向稳定性,测试3决定侧面稳定性和测试4决定空载的侧向稳定性。