对轴向柱塞水液压泵润滑油腔的热力学仿真分析

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1、机床与液压Dec．2012HydromechatronicsEngineeringVo1．40No．24DOI：10．3969／j．issn．1001-3881．2012．24．018TheThermodynamicsSimulationAnalysisfortheLubricantChamberofanAxialPistonWaterHydraulicPumpTANGHui，WUDefa，TANGZhenyu，LIDonglin，LIUYinshuiMechanicalScienceandEngineering．Huazho

2、ngUnwenityofScienceandTechnology，Wuhan43oo74，ChinaAbstract：Inthispaper，athermodynamicequationofthemajormovingpartsinlubricantchamberofoil．waterseparationaxialpistonwaterhydraulicpumpisestablished，andaheatbalanceequa-tionofthelubricantchambersystemisobtained．Throughn

3、umericalsimulationbyusingMatlab，theequilibriumtemperatureofoiIjfltheIubricantchamberisobtained．andthechangeofviscosi—t、，fOrtheoilandtheworkingconditionsofthefrictionpairintheIubricantchamberisanalyzed．Theresearchofthisarticlehasaguidingsignificanceandreferencevaluet

4、odesigntheoil。waterseparationwaterhydraulicpumpandthechooselubricatingoiIoftheIubricantchamber．Keywords：waterhydraulics，oil-waterseparation，pistonpump，thermodynamicsThewaterhydraulictechnologyisoneofthelubricantchamberareaffectedbylubricantcharacter．mostsophisticate

5、dtechnologiesinmodemhydraulicistics，especially，theviscosityoftheoil，whichisfield．Itcanbeusedwidelyinthefieldofindustrialrelatedwithpressureandtemperature．Thelubricantproductionandotherfieldssincewatermediumhaschamberofoi1-waterseparationaxialpistonwaterhy—theadvanta

6、gesofextensivesources，goodflameretar—draulicpumpisaclosedconstantvolumechamberdance，low—costandnon—pollution[1]．Thecoreandthepressureofthechamberisassameasatmos-componentsofwaterhydraulicsystemarewaterhy-phericpressure．Therefore，thetemperatureisthedraulicpumpandmoto

7、r，theirperformanceaffectsmainfactorthataffectsoilviseosityinthelubricantthereliabilityofthewholewaterhydraulicsystem．chamber．Thefrictionpairs，viscosityresistanceofTheoil—waterseparationaxialpistonwaterhy．thecomponentsandlubricatingmediumwillproducedraulicpumpseparat

8、esthelubricantchamberandlotsofheat，whichcannotbecarriedawayimmedi·waterchamberbyusingspecialsealstructuretopre—atelybecauseofthesmallheatr