JASO E109-1994 英文版 汽车多楔带

JAPANESEAUTOMOBILESTANDARDJASOE10994AUTOMOTIVEVRIBBEDBELTS1SCOPETHISSTANDARDSPECIFIESTHEVRIBBEDBELTSHEREINAFTERREFERREDTOAS“BELTS“FORDRIVINGTHECOOLINGFANS,ALTERNATORS,WATERPUMPS,COMPRESSORS,POWERSTEERINGPUMPS,SUPERCHARGERS,ETCOFAUTOMOBILEINTERNALCOMBUSTIONENGINESREMARKSTHEAPPLICABLESTANDARDSTOTHISSTANDARDAREASFOLLOWSJIS60601JISZ8401JASOE110JASOE111DEFINITIONSANDDESIGNATIONOFSURFACEROUGHNESSRULESFORROUNDINGOFFOFNUMERICALVALUESTESTMETHODFORTOOTHEDBELTSFORAUTOMOBILESSHAPEANDDIMENSIONOFVRIBBEDPULLEYGROOVESFORAUTOMOBILES2DEFINITIONSDEFINITIONSOFMAINTERMSUSEDINTHISSTANDARDAREASFOLLOWS1EFFECTIVELENGTHTHELENGTHOFALINECIRCUMSCRIBINGABELTTHROUGHTHEEFFECTIVECIRCUMFERENCEOFAMEASURINGPULLEYWHENTHEBELTISPLACEDONTOTWOMEASURINGPULLEYSWITHASPECIFIEDFORCEAPPLIEDBELTBREAKDOWN2PITCHZONEAZONEINABELTWHEREANYEXTENSIONANDRETRACTIONARENOTPRESENTWHENITISBENTITISUSEDTOCALCULATETHESPEEDRATIOOFTHEPULLEYASTATEOFABELTINWHICHTHEBELTISPLACEDWITHITSRIBSECTIONFACEDINWARDASTATEOFABELTINWHICHTHEBELTISPLACEDWITHITSRIBSECTIONFACEDOUTWARD3NORMALBENDING4REVERSEBENDING3CLASSIFICATIONTHEBELTISOFPKTYPEONLY4QUALITY41PERFORMANCETOTESTTHEPERFORMANCEOFTHEBELT,ATESTCOMPRISINGNORMALBENDINGONLYTHETESTCONDITIONSARELISTEDINAIORATESTINCLUDINGREVERSEBENDINGTHETESTCONDITIONSARELISTEDIN61ASINDICATEDINPARAGRAPH92SHALLBESELECTEDACCORDINGTOTHEPULLEYLAYOUTINWHICHTHEBELTISUSEDASTHERESULTOFTHETEST,ANYDAMAGESASSHOWNINFIG1MUSTNOTBEPRODUCED,ANDTHESECONDRETENSIONINGMUSTNOTBEREQUIREDFIG1RIBRUBBERCHUNKATONEORMOREPLACERIBRUBBERCRACKCRACKREACHEDTOTENSIONMEMBER42TENSILECHARACTERISTICS93,ANDTHETENSILESTRENGTHANDELONGATIONTHETESTOFTHEBELTFORTENSILECHARACTERISTICSSHALLBECARRIEDOUTONTHEMETHODINPARAGRAPHMUSTMEETTHEREQUIREMENTSINTABLE11JASOE10994NUMBEROFRIDS34567OROVERTENSILECHARACTERISTICSTENSILESTRENGTHELONGATIONMAXTENSILEFORCEFORCEATMEASUREMENTKNKN240OROVER30OR075320OROVERBELOW1O0400OROVER125480OROVER150080XNOROVER025XN43LOWTEMPERATURERESISTANCETHETESTOFTHEBELTFORLOWTEMPERATURERESISTANCESHALLBECARRIEDOUTONTHEMETHODINPARAGRAPH94,ANDANYCRACKMUSTNOTBEDEVELOPEDEFFECTIVEDIAMETER44PITCHZONEHEIGHTANDRIDEOUTTHEPITCHZONEHEIGHTANDRIDEOUTOFTHEBELTAREINDICATEDBYTHEHEIGHTSB,ANDBOPROTRUDEDNORMALBENDINGPULLEY55REVERSEBENDINGPULLEYOUTWARDFROMTHEEFFECTIVEDIAMETERDOFTHEPULLEYASSHOWNINFIG,2,RESPECTIVELYTHERIDEOUTISMEASUREDBYTHEMETHODINSUBPARAGRAPH913THEREFERENCEVAUESANDTOIERANCESOFPITCHZONEHEIGHTANDRIDEOUT,ANDTHEPITCHZONEHEIGHTMEASURINGMETHODSHALLBEDETERMINEDINACCORDANCEWITHTHEMUTUALAGREEMENTBETWEENTHEMANUFACTURERANDTHEUSERFIG2PITCHZONEHEIGHTANDRIDEOUTWHEREB,PITCHZONEHEIGHTMMBORIDEOUTMMDEPULLEYEFFECTIVEDIAMETERMM45MINIMUMPULLEYDIAMETERRECOMMENDEDPULLEYDIAMETERSARELISTEDINFORMINIMUMPULLEYDIAMETERS,THEMINIMUMTABLE2FORTHEDURABILITYOFTHEBELF85OUTERDIAMETER5CONSTRUCTIONTHEBELTMUSTBEENDLESSWITHTHECONSTRUCTIONASSHOWNINFIG3THECONSTRUCTIONWITHTHREERIBSISSHOWNINFIG3ASANEXAMPLE2JAS0E10994RADIUSATGROOVEBOTTOMBELTWIDTHFIA3CONSTRUCTIONRMAX025B1356XNOIADHESIVERUBBERRIBHEIGHTIRIBRUBBERH,I2TO3REFERENCE6NOMINALDIMENSIONS61NOMINALDIMENSIONSOFBELTCROSSSECTIONSTHENOMINALDIMENSIONSOFBELTCROSSSECTIONSARELISTEDINTABLE3OVER1500TOANDINCL2000OVER2000TOANDINCL2500TABLE3BELTCROSSSECTIONSF90K100TABLE3BELTCROSSSECTIONSUNITMMITEMSNOMINALDIMENSIONNAMERIBDITCHRIBANALEIAI4O“BELTTHICKNESSIH145TO6REFERENCENOMINALVALUEOFEFFECTIVELENGTHITOLERANCEUPTHROUGH1000IK50OVER1O00TOANDINCL1200F60OVER1200TOANDINCL1500IF80OVER2500TOANDINCL3000IF110REMARKTHETOLERANCESOFEFFECTIVELENGTHSEXCEEDING3000MMSHALLBEDETERMINEDINACCORDANCEWITHTHEMUTUALAGREEMENTBETWEENTHEMANUFACTURERANDTHEUSER3JACOELO9847APPEARANCETHEBELTMUSTBEFREEFROMANYVISIBLEHARMFULTWISTING,DISTORTION,FLAWS,PINHOLES,FOREIGNMATTER,ETC8MATERIALS81RUBBERTHEADHESIVERUBBERANDRIBRUBBERSHALLBEUNIFORMINCOMPOSITION82BACKSIDETHEBACKSIDESHALLBEMADEOFCOTTON,SYNTHETICPLAINWEAVEFABRIC,ORTHESEMIXEDFABRIC,ANDSHALLBEFREEFROMHARMFULFLAWS,DISTORTION,ETCTHEDENSITYOFITSWARPANDWEFTSHALLBEUNIFORM83TENSIONMEMBERTHETENSIONMEMBERSHALLBEMADEOFSYNTHETICFIBERCORDS,ETC,ANDITSTWISTSHALLBEUNIFORM9TESTPROCEDURE91MEASUREMENTOFEFFECTIVEBELTLENGTHANDRIDEAUT911MEASURINGFIXTURETHEMEASURINGFIXTUREISCOMPOSEDOFTWOROTATABLEPULLEYSWITHGROOVECROSSSECTIONDIMENSIONSASSHOWNINTABLE5ONEOFTHEPULLEYSISFIXEDINPOSITION,ANDTHEOTHERONEISMOVABLEWHILEASPECIFIEDFORCEISAPPLIEDINFORCINGDIRECTIONTHECONCEPTUALDRAWINGOFTHEFIXTUREISSHOWNINFIG4912MEASUREMENTOFEFFECTIVEBELTLENGTHTODETERMINETHEEFFECTIVEBELTLENGTHLE,PLACETHEBELTONTOTHEMEASURINGFIXTUREINSUBPARAGRAPH911,WITH100XNNMEASURINGFORCEAPPLIED,ANDROTATETHEBELTATLEASTTWOREVOLUTIONSTHENMEASURETHECENTERDISTANCEBETWEENTHEPULLEYSHAFTSANDCALCULATETHEEFFECTIVELENGTH,LE,OFTHEBELTUSINGTHEFOLLOWINGFORMULALEE,ERN,“U,WHEREI,EFFECTIVEBELTLENGTHE,MAXIMUMCENTREDISTANCEE,“MINIMUMCENTREDISTANCEU,EFFECTIVECIRCUMFERENCEOFMEASURINGPULLEYSNOTEFORFORCE,THEMEASURINGFORCEISAPPLIEDWITHAWEIGHTCALIBRATEDBYJAPANESEWEIGHTANDMEASUREACT,HYDRAULICPRESSURE,ORTHEEQUIVALENTMETHODFIG4EFFECTIVELENGTHMEASURINGFIXTUREMEASURINGFORCETABLE5GROOVEDIMENSIONSANDTOLERANCESOFMEASURINGPULLEYGROOVES4JAS0F10994CHECKINGBALLORRODDIAMETERDIAMETEROVERBALLS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ARECONFORMEDTOIS099812THEDYNAMICTESTITEMSCORRESPONDINGTOINCREASEINTHENUMBEROFPULLEYLAYOUTSINCLUDINGREVERSEBENDINGARESPECIFIEDTHEDYNAMICTESTMETHODISMADEBASICALLYINACCORDANCEWITHDIS117493THEGROOVEFORMSOFVRIBBEDPULLEYSANDTHEIRTOLERANCESWHICHAREDESCRIBEDFORREFERENCEINTHEEXPLANATORYNOTEOFLHEEXISTINGSTANDARDSAREDELETEDAFTERJASOE11193HASBEENESTABLISHED4THEFORM,TERMINOLOGY,ANDSYMBOLSUSEDINTHESTANDARDSARECHANGEDTOTHOSETHATCANBEJUDGEDAPPROPRIATEATTHEPRESENT3MAJORREVIEWPOINTSTHEFOLLOWINGPOINTSWEREREVIEWEDINTHEMEETINGFORREVISION1THOUGHONLYLIFETIMEISSPECIFIEDASDURABILITYINTHEEXISTINGSTANDARDS,ITWASREVIEWEDTHISTIME,ANDTHEITEMNAMEWASCHANGEDTOPERFORMANCEANDTHECONTENTWASALSOCHANGED2THEDURABILITYTESTISMADEINTHETESTCONDITIONSSPECIFIEDINDIS11749BECAUSETHESECONDITIONSARESIMILARTOTHOSEUSEDINJAPAN3THEMINIMUMPULLEYDIAMETERWASSPECIFIEDBECAUSEITISNECESSARYFORDRIVEDESIGNSINCETHELIMITATIONOFTHEMINIMUMPULLEYDIAMETERDEPENDSONLOADCONDITIONS,PULLEYLAYOUT,ETC,HOWEVER,AVALUETHATCARIBEACCEPTEDGENERALLYTOALARGEEXTENTWASSTUDIEDANDSPECIFIEDASTHEMINIMUMRECOMMENDEDEFFECTIVEDIAMETER4THOUGHTHEREWASANOPINIONTHATTHEBELTPROFILESFORNORMALANDREVERSEBENDINGCOULDBESPECIFIEDACCORDINGTOTHETHICKNESSTOTALTHICKNESSOFBELT,ITWASJUDGEDTHATTHEYCOULDNOTBESPECIFIEDACCORDINGTOTHETOTALTHICKNESSONLYBECAUSETHECHARACTERISTICSOFRUBBERITSELFAFFECTSLARGELYONTBEPERFORMANCE,ITWASJUDGEDTHATTHEYCOULDNOTSPECIFIEDBYTHETOTALTHICKNESSONLYANDTHISOPINIONWASNOTADOPTED5TOCOPEWITHTHEREQUIREMENTSFORTHENARROWERTOLERANCEINBELTLENGTH,THEACCURACYOFTHEEXISTINGBELTINLENGTHWASREVIEWEDAND,INTHERANGEOFBELTLENGTHWHERETHEBELTLENGTHWASLONGER,THETOLERANCEWASREVIEWEDTOBENARROWERTHANTHATSPECIFIEDINTHEEXISTINGSTANDARDS6THETESTCONDITIONSFORREVERSEBENDINGWEREALSOADDEDTOTHELOWTEMPERATURETESTCORRESPONDINGTOADDITIONOFPULLEYLAYOUTSINCLUDINGREVERSEBENDINGTOTHETESTCONDITIONSFORDURABILITYSOTHATTHETESTCONDITIONSCOULDBESELECTEDACCORDINGTOTHEPULLEYLAYOUT7THESTATICHIGHTEMPERATURETESTWASDELETEDBASEDONTHEJUDGMENTTHATTHESTATICHIGHTEMPERATURETESTWASNOLONGERNECESSARYBECAUSETHEDYNAMICTESTWASCHANGEDTOATESTATHIGHTEMPERATURE4SUPPLEMENTARYNOTEFOREACHSPECIFIEDTHEITEMSINTHISSTANDARDSTHATREQUIRESUPPLEMENTARYEXPLANATIONAREEXPLAINEDACCORDINGTOTHEITEMNUMBERSOFTHEMAINBODYASFOLLOWSTHECOMPARISONBETWEENTHEEXISTINGANDNEWSTANDARDSANDTHECONFORMITYOFTHEMTOIS0STANDARDSINCLUDINGDIS11749NOWUNDERDISCUSSIONAREEXPLAINEDINTHEAPPLICABLEITEMS,ANDSHOWNINEXPLANATORYTABLE1ASCOMPARISONTABLEITEM9JAS0E1099441TERMINOLOGYSECTION2OFMAINBODYTOHELPUNDERSTANDTHISSTANDARDS,EFFECTIVELENGTH,PITCHZONE,NORMALBENDING,ANDREVERSEBENDINGWERENEWLYSPECIFIEDTOPREVENTTHE”BELTLENGTHFROMBECOMINGAMBIGUOUS,THEEFFECTIVELENGTHWASSPECIALLYSPECIFIED42CLASSIFICATIONSECTION3OFMAINBODYTHOUGHTHEREAREFIVETYPESOFRIBBELTSWITHDIFFERENTRIBPITCHESSUCHASPH,PJ,PK,PL,ANDPM,PKTYPEONLYISSPECIFIEDINIS09981INJAPAN,PKTYPEONLYISUSEDFORAUTOMOBILESAND,THEREFORE,THISSECTIONOFTHESTANDARDSWASNOTREVISED43QUALITYSECTION4OFMAINBODY431PERFORMANCEPARAGRAPH41OFMAIN1THOUGHONLYLIFETIMEONDURABILITYTESTISSPECIFIEDINTHEEXISTINGSTANDARDS,THEITEMNAMEWASCHANGEDFROMDURABILITYTOPERFORMANCEINTHISSTANDARDSANDITWASSPECIFIEDINTHESTANDARDSTHATTHERESHALLNOTOCCURANYDAMAGEANDTHESECONDTENSIONADJUSTMENTSHALLNOTBEREQUIREDIN50HOURSRUNNINGTOCONFIRMTHATANYPREMATUREFAILURESHALLNOTOCCURINTHEFIELDTHETESTTIMEFORFAILUREAND/ORSECONDRETENSIONISRECOMMENDEDTOBEDETERMINEDINACCORDANCEWITHTHEAGREEMENTBETWEENTHEMANUFACTURERANDTHEUSERINDIS11749,THETESTTIMEFORDYNAMICTESTISNOTSPECIFIED,ANDISTOBEDETERMINEDACCORDINGTOTHEAGREEMENTBETWEENTHEMANUFACTURERANDTHEUSER2SINCETHEUSEOFPULLEYLAYOUTINCLUDINGREVERSEBENDINGHASBEENINCREASINGRECENTLYANDITISSEVERERINUSECONDITIONTHANTHEUSEOFPULLEYLAYOUTCONSTITUTEDWITHNORMALBENDINGONLY,EXCLUSIVETESTCONDITIONSINCLUDINGREVERSEBENDINGWEREADDEDTOTHEEXISTINGTESTCONDITIONSINCLUDINGNORMALBENDINGONLYANDONEOFTHETESTCONDITIONSSHALLBESELECTEDBASEDONTHEPRACTICALPULLEYLAYOUT3TOSPECIFYTHEJUDGMENTFORDAMAGEINDYNAMICTEST,THEFIGURESHOWINGTHECONFIGURATIONOFDAMAGEWASADDED4THOUGHDYNAMICTESTISTOBEMADEATTHEROOMTEMPERATUREINTHEEXISTINGSTANDARDS,ITWASCHANGEDTOBEMADEATTHEAMBIENTTEMPERATUREOF85OCWHICHISCONSIDEREDTOBODYREPRESENTTHEACTUALCONDITIONS432PITCHZONEHEIGHTANDRIDEOUTPARATHEVALUESOFPITCHZONEHEIGHTANDRIDEOUTAREUSEDTOCALCULATETHEROTATIONALRATIOOFPULLEYSANDTHEEFFECTIVEBELTLENGTHFORACTUALPULLEYLAYOUTSINCETHISVALUEISDETERMINEDBYTHECOMBINATIONWITHTHEBELTSANDTHEPULLEYS,POSITIONSANDSYMBOLSONLYARESHOWNHERE,ANDTHEACTUALLYUSEDVALUESAREDETERMINEDINACCORDANCEWITHTHEAGREEMENTBETWEENTHEMANUFACTURERANDTHEUSERALSO,SINCETHEPITCHZONEISDEFINEDASTHESURFACEOFBELTNOTEXTENDEDANDRETRACTEDSURFACEONWHICHANYSTRESSISNOTPRODUCEDWHENTHEBELTISBENT,FORTHEBELTINTHISSTANDARDS,ITMAYBECONSIDEREDTOBEEQUIVALENTTOTHECENTRELINEOFTHETENSIONMEMBERCENTRELINEOFTHECOREINCROSSSECTIONACCORDINGLY,THEHEIGHTOFTHECENTRELINEOFTHETENSIONMEMBERCANBEOBTAINEDFROMTHECROSSSECTIONDIMENSIONSTOSUBSTITUTEITFORTHEHEIGHTOFTHEPITCHZONEGRAPH44OFMAINBODY433MINIMUMPULLEYDIAMETERPARAGRAPHINTHEMARKET,PULLEYSOFSMALLERDIAMETERAREREQUESTEDFORCOMPACTDRIVEANDTHEROTATIONALRATIOINCREASEFOREXAMPLE,SOMEPULLEYSFORNORMALB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