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时间:2020-03-25
《滑靴底面结构对轴向柱塞泵滑靴副油膜性能影响的数值分析.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、2014年5月润滑与密封Mav20l4第39卷第5期LUBRICATIONENGINEERINGVo1.39No.5DOI:10.3969/j.issn.0254—0150.2014.05.001滑靴底面结构对轴向柱塞泵滑靴副油膜性能影响的数值分析吴怀超何永勇简晓书(1.清华大学摩擦学国家重点实验室北京100084;2.贵州大学机械工程学院贵州贵阳550025)摘要:轴向柱塞泵滑靴的底面结构直接影响滑靴副的油膜性能,为了摸索出一种适合于35MPa高压轴向柱塞泵的滑靴结构,在分析滑靴副油膜压力调节原理的基础上,利用ANSYS软件的FLUENT
2、模块,分别对具有内辅助支承面(简称为“一环结构”)及具有内、外辅助支承面(包括“二环连通结构”和“二环不连通结构”)底面结构的滑靴对油膜性能的影响进行数值分析。分析结果表明,“二环连通结构”滑靴的性能最差,而“二环不连通结构”的滑靴的综合性能最优,是研制35MPa高压轴向柱塞泵的首选结构。但“二环不连通结构”的滑靴由于“一环”和“二环”间的外支承面属于高温区,且在密封带到边缘之间的坡度槽处压力损失过大,需进一步优化设计。关键词:轴向柱塞泵;滑靴结构;油膜性能;数值分析中图分类号:TH322文献标识码:A文章编号:0254—0150(2014
3、)5—001—5NumericalAnalysisofInfluenceofSlipperBottomStructureonOilFilmPerformanceofSlipperPairofAxialPistonPumpWUHuaichao‘’HeYongyongJianXiaoshu(1.StateKeyLaboratoryofTribology,TsinghuaUniversity,Beijing100084,China;.2.SchoolofMechanicalEngineering,GuizhouUniversity,Guiyang
4、Guizhou550025,China)Abstract:Thebottomstructureoftheslipperinaxialpistonpumpdirectlyinfluencesoilfilmperformanceoftheslipperpair.Inordertoseekakindofslipperstructureforthehighpressureaxialpistonpumpof35MPa,theregulatingprincipleofoilfilmpressureoftheslip—perpairwasanalyzed
5、,andtheinfluencesofthreeslipperswithdifferentbottomstructuresonoilfilmperformancewereinvestigatedrespec—tivelybymeansofFLUENTmoduleofANSYSsoftware,includingtheslipperswithbottomstructureofinnerauxiliarysupportingSurface(calledone—ringstructure)andbottomstructureofinnerando
6、uterauxiliarysupportingSurface(calledtwo—ringstructure,includingtwo—ringconnectedstructureandtwo—ringdisconnectedstructure).Theresultsshowthattheslipperoftwo—ringconnectedstructurehastheworstcomprehensiveperformances,whiletheslipperoftwo—ringdisconnectedstructurehasthebest
7、comprehensiveperformances,anditisrec—ommendedastheslipperfordevelopingthehighpressureaxialpistonpumpof35MPa.But,forthetwo—ringdisconnectedstructure,theouterauxiliarysupportingsurfacebelongstohightemperatureregion,andtheslopegloovebetweenthesealbeltandedgeresultsinbigpressu
8、redrop,SOthestructureneedstobefurtheroptimized.Keywords:axialpistonpump;slipperstructure;
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