汽车离合器英语论文.docx

汽车离合器英语论文.docx

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汽车离合器英语论文

毕业设计（论文）

英文翻译

、

年级、专业:

2008级机械设计制造

及其自动化

******************

学号:

***************

指导教师:

孙书民徐红

Thedesignofdiaphragmspring

Abstract

Theclutchistheimportantcomponentsinautomobiletransmissionsystem,themainfunctionistoachieveiscutoffandtheenginetothepowertransmission,guaranteedthattheautomobilestartssmoothly,ensuredrivesystemwhentheshiftworksmoothlyandlimitthetransmissionsystemtowithstandthemaximumtorque,preventthetransmissionsystemoverload.Diaphragmspringclutchisinrecentyearsinthevehicleandlightvehicleusedinaclutch,thetorquecapacityoflargeandrelativelystable,convenientoperation,goodbalance,canbemassproduction,andtheresearchonithasbecomemoreandmoreimportant.

Keywords:

diaphragmspringclutch;

Diaphragmspringclutchoverview

Diaphragmspringclutchisinrecentyearsinthecarandlighttruckusedaclutch.Becauseofitsasapressurespring,canalsoplaytheseparationlevereffect,wherebytheclutchinordertosimplifythestructure,qualityreduction,andremarkablyreducetheaxialsizeofclutch.Secondly,asaresultofdiaphragmspringandpressurewiththecircumferentialcontact,sothatuniformdistributionofpressure.Inadditionduetothediaphragmspringwithnonlinearelasticproperties,itcanbeinthedrivendiscfrictionplateabrasion,springcanstillreliablytransferthetorqueoftheengine,withoutcausingslipawayfrom.Clutch,theclutchpedalmanipulationoflight,reducethelaborintensityofthedriver.Inaddition,becauseofthediaphragmisasymmetricparts,goodbalance,athighspeed,thepressingforcereducingrarely,buttheweekarrangedelasticclutchathighspeed,duetothecentrifugalforcewillgeneratetransversebending,springseveredrum,therebyreducingthepressureplatepressure,therebycausingtheclutchtotransmittorquecapacity.Ascanbeseen,forlightdiaphragmspringclutchdesignresearchfortheimprovementofautomobileclutchperformanceinallaspectshasveryimportantsignificance.

Asthehold-downspringcalleddiaphragmspring,ismadeofspringsteelstamped,with"nobottomplate"shapeofthetruncatedconeshapedthinwalldiaphragm,andthesmallendsurfaceonapluralityofradialgroove,toformanelasticlever,whiletheremainingslotscutendtruncatedconicalpartisaspringaction.Diaphragmspringarearrangedonthebothsidesofthesupportingring,andthelatterbymeansofafixedonaclutchcoversome（radialgroovescutinhalfnumberofrivetstoinstalllocation）.Whentheclutchcoverboltfixedtotheflywheel,theflywheelclutchcovertotherearsupportring,diaphragmspringtogenerateelasticdeformation,theapexangleoftheconebecomeslarge,andevenalmostflatteneddiaphragmspring.Atthesametimethelargerendofthediaphragmspringpressureplatepressingforcegeneratedontheclutchisinthecoupling.Whentheclutchisdisengaged,theseparationbearingforwarddiaphragmspringpressurebeforethesupportingringasafulcrumofreversetaperedtransition,sothatthediaphragmspringaftertheshift,andbyseparatingthehookpullingthepressureshiftclutch.Diaphragmspringclutchhasmanyadvantages:

firstofall,asaresultofthediaphragmspringwithnonlinearcharacteristic,thereforethedesignofthefrictionplateabrasion,springpressureisnearlyconstant,andcanreducetheseparationwhentheclutchpedalforce,makethemanipulationoflight;secondly,diaphragmspringclutchmountedpositiononthecenterlineoftheshaftaresymmetrical,sothepressingforceactuallyfromtheinfluenceofthecentrifugalforce,stableperformance,balanceor;furthermore,diaphragmspringitselfandpressingspringandseparationoftheclutchlevereffect,simplestructure,lessnumberofparts,thequalitydecreasesobviouslyshortenstheaxialdimension;inaddition,thediaphragmspringandthepressureplateistheentirecircumferentialcontact,sothatthepressureuniformdistribution,goodcontactfrictionfrictionplate,uniform,easytoachievegoodventilationandcooling.

Pulltypediaphragmspringclutchhastheadvantages

Comparedwithpush,pulltypediaphragmspringclutchhasmanyadvantages:

amiddlesupportingcomponents,anddonotsupportringoronlyasupportingring,thestructureissimple,compactstructure,fewerparts,qualityless;pulltypediaphragmspringiscentralandtheplatenpressplatensizeinthesameconditionsthelargerdiameterdiaphragmspring,improvesthepressingforceandtheabilitytotransfertorque,anddoesnotincreasethepedalforce,inthetransmissionofthesametorque,canusethesmallsizestructure;inthejointorseparatestate,theclutchcoverdeformationsmall,largestiffness,higherseparationefficiency;pullleverageratiogreaterthanpush-downleverrat