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1、VariableArcGearPrincipleandtheFormationof颦崧辛始嗯盛魈审邯钛炒AbstractToaclassofvariablearcgear.Useofdeviationfunction,giventhetoothprofileofthestructuralintegrityoftheprocess,proveditstoothprofileengagementtomeetthebasiclawoftoothprofileequationderivedbasicformula,discussedthecha
2、ngingarcofthegear,giventhechangingarctoothProfileexamples;suchgearhasahighcarryingcapacity,especiallyforhigh-speed,high-precisionCNCmachining,itwillbeoccasionsintheheavytransmissionapplications.Keywords：gear,profile,deviationfunction,engagementprinciple,gearstrengthIntro
3、duction Withthedevelopmentofscienceandtechnology,todrivetherequirementshavebeenincreased,particularlyintheareaofheavyandsmallisparticularlyprominent.Atpresent,thegearusedinthedesignofainvolutesline,andcycloidarctoothprofilethreeofthem,involutesgearduetomanufacturingsi
4、mpledeviationfromtheCentrenotsensitivetotheadvantagesofwidelyused,butitbearerLessandlessforheavytransmission;cyclonicalgearcontactstresssmall,toothprofileofthecoincidenceoflargeandisconducivetotheimprovementofbendingstrength,butthemeshingofgearsprecisionmanufacturinganda
5、ssemblyhigher;lastcentury1950sthearcgearbendingstrengthisnothigh,inordertoachievecontinuouscontacttobemadegenerallyhelicalgears,andsmallmanufacturersintheareahavebeengreatlyrestricted.Inordertoincreasethecarryingcapacityofgears,theresearchersputforwardanumberofnewtoothpr
6、ofile,forexample:micro-segmentgearprofile,dual-bandinvolutesgear,thegearincreasetheintensitycouldplayarole,butthesenewteethProfileinthemanufacturingorassemblyareastherearestillcertaindeficiencies.Thisdeviationfromtheconceptoffunction,anewtypeofgear-gearchangearc.Thepaper
7、introducedthearcgearchangetheformationofprinciple,derivedToothformula,discussedthechangingarcofthegearisgiventoothprofileexamples.1Avariablearctoothprofileofaprinciple1.1Variablearctoothprofileofaprinciple BelowD.C.H.YangaccordingtoAmericanscholars,suchasthedeviationf
8、unction(DF),variablearctoothprofileontheformationofprinciple. P1isaradiusofacircleofthegearsection,θ
