弹流润滑高速滚动轴承性能分析

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1、北京工业大学硕士学位论文弹流润滑高速滚动轴承性能分析姓名：李智慧申请学位级别：硕士专业：机械制造及其自动化指导教师：伍良生20070501AbstractThispaperstudiestheslnmtureparameterandoptilnullldesignofhighspeedangularcontactballbearinginthetheoryandtestonhowtoimprovetheperfommc≈andstabilityofthebearingthatusedinthehighspeedspindle码咖ofnumericalcontrolmachine．Fir

2、stofalI，buildthemathematicsmodels，calculateandanalysisthemodelbasedOnthetwodiffesentworkCOnditions．LoadedOntheaxialloading；loadedOncombinationloading．Thesemathematicsmodelsinvolvedthethcorimincludingthedeformationandloaddistributionofbearing，geometricalrelationshipandkinematicsofbearingandelasto

3、hydrodynamiclubricationtheory,ere．BasedOnthemathematicsmodels．andmtheresultstocalculateandanalysistheratioofrevolutionandrollingandgettherelationofthebearingparameterandtheratioofrevolutionandrollingforrunningstabilizationofhJighspeedrollingbearing．Secondly,calculateandanalysisthe鹏chanaeristicso

4、fthehighspeedbearing,mainlyincludingrigidityandthefrictionmomefitofthebearing．Thedynamicalcharacterofspindlesystemdepends011therigidityofsupporfngbearing,especiallydependsOnradialrigidityandaxialrigidityofb∞—n参ThefrictionmometRaIllBc瓠I目gylossandtemperatureincranentintheplD∞韶ofbearingnaming．Throu

5、ghthecalculationandthe卸alysis，providesthebasisandtheoryforthedesignandselectioninmebearingofthehigh印鲥spindlesystem．Atlastofthepaper,buildthetesttableofthehigh$pl：edbeating．Testandcollectthedataoftemperatureandvibrationofthebearinginhighspeed．Inthetest,choosetheanglecontactbearingastestbearing,an

6、dworkinthedifferentpositionofspindlesystem,thentestthetemperatureandvibrationofthebearingsindiffea'entspeedanddifferentloading,andanalysisthedatatoV耐母themathematicsmodels．Bythemathematicscalculationandtest,providesthetheorybasisandtestrefereaceforthehighspeedbearinginthedesignworkandoptimum,asth

7、eeffectivetheorycouldusedinthehighspeedspindlesystemandlnskebearinghavegoodperformanc&KeywordsAngularcontactballbearing；Elastohydrodynamiclubrieadon(El-IL)，RigidityFrictionmoment,Ratioofrevolutionandrolling．Ⅱ．独创性声明本人声明所呈交的论文