1.2l汽油機(jī)曲軸動(dòng)平衡在加工工藝中的研究(1)

1、青島理工大學(xué)碩士學(xué)位論文1.2L汽油機(jī)曲軸動(dòng)平衡在加工工藝中的研究姓名：李曉敏申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械工程指導(dǎo)教師：王優(yōu)強(qiáng)201106青島理工大學(xué)工程碩士學(xué)位論文AbstractInmostofautomobileenginecomponents，crankshaftisoneofthemostimportantkeypartsTosomeextentcrankshaftdimensionparameterandmachiningq

2、ualitywillinfluencethereliabilityofwholeengineThereforecrankshaftoccupiesallextremelyimportantpositioninenginedesignandimprovementReasonablearrangementscrankshaftmachiningprocesshasasignificantimpactonoperatingperformanc

3、eofengineBasedontheanalysisofexistingcrankshaftcastingandmachiningprocessfor12LcrankshaftatsametimeanalysisoftwoplanebalancingtheoryofcommonrigidrotorandmainreasonsofunbalanceareanalyzedandlistedAccordingtothetheoretical

4、analysisofcrankshaftbalancingabove，studied、)~，iththestructuralcharacteristicsofthemeasurementsystemandtestingsystemforvibrationsignalsamplingandprocessingofcrankshaftbalancingmachinesFormeasuringsystemthemainjobisprovidi

5、ngthepositionandangleofamountofunbalanceafterprocessingthevibrationsignalscollectedbythesensorstotheriddingsystemAndthen，drillsystemCanridtheunbalanceaccordingtotheinformationtransmittedbythemeasuringsystemCrankshaftmach

6、iningprocessisdrilltwoendscenterholesandafteraseriesofmechanicalprocessingtobalancingprocessInbetweencrankshaftcenterholehavesignificanteffectsoninitialunbalancedistributionFurthermoreamountofinitialunbalanceanddirection

7、alsohasasignificantimpactoncrankshaftfinaldynamicbalancing，whichwilldirectlyaffectthecontrolofcrankshaftamountofunbalanceBasedonthisproposedanoveralloptimizationsolutionbetweencenterholesmachiningandbalanceprocessUse12Lg

8、asolineenginecrankshaftmachiningprocessandbalanceoptimizationapplicationasanexample，highlighttheinfluenceofcrankshaftprocessingarrangementonbalancing，effectivelysolvethe12Lgasolineenginecrankshaftbalancingequipmentuptime

9、andcycletimepracticalproblemsAccordingtothecomparisontestcouldfound，crankshaftwhichthroughtheoptimizedcenterholesprocess，initialunbalanceissmallerthantheformercrankshaftSeconddistributionofinitialunbalanceismorefocused，a