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时间:2020-03-27
《推土机变速箱用润滑油黏温特性研究.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、2016年8月润滑与密封Aug.2016第41卷第8期LUBRICATIONENGINEERINGVol_41No.8DOI:10.3969/j.issn.0254—0150.2016.08.008推土机变速箱用润滑油黏温特性研究董德浩李方义李国彦朱兆聚王一凡刘军。(1.山东大学机械工程学院,高效洁净机械制造教育部重点实验室山东济南250061;2.潍柴动力股份有限公司发动机技术研究院山东潍坊261061)摘要:润滑油黏度的在线监测是实现设备状态监测与故障诊断的重要途径,但在实际工程应用中.润滑油的实时黏度需要根据润滑油的黏温特性换算成国家标
2、准100℃时的黏度。为研究推土机变速箱润滑油15W40CF一4的黏温特性,对SD22型推土机变速箱润滑油进行跟踪取样,测定新油、寿命中期油和废油在40~100℃时的运动黏度。采用Andrade方程、Wahher方程和Vogel方程对试验所得的数据进行回归拟合,分析和比较3种黏温方程的拟合精度。结果表明,用Vogel方程来描述这类润滑油的黏温特性更加准确,为在线监测的实时黏度换算提供依据。关键词:在线监测;润滑油黏度;黏温方程;实时黏度转换中图分类号:TH117.2文献标志码:A文章编号:0254—0150(2016)08—039—04Rese
3、archonViscosity.TemperatureCharacteristicsofBulldozerGearboxLubricatingOilDONGDehaoLIFangyiLIGuoyan。ZHUZhaojuWANGYifanLIUJun(1.KeyLaboratoryofEficientan.dCleanMachineryManufacturingofMinistryofEducation,SchoolofMechanicalEngineering,ShandongUniversity,JinanShandong250061,Ch
4、ina;2.EngineTechnologyResearchInstitute,WeichaiPowerCo.,Ltd.,WeifangShandong261061,China)Abstract:Theonlinemonitoringtolubricatingoilviscosityisanimportantwaytoachievethemechanicalconditionno-nitoringandfaultdiagnosis,butinpracticalengineeringapplications,thereal—timeoilvis
5、cosityneedstobeconveaedintothestandardviscosityat100℃accordingtotheoilviscosity—temperaturecharacteristics.Tostudytheviscosity-temperaturecharacteristicsofbulldozergearboxlubricatingoilof15W40CF一4.thegearboxlubricatingoilofSD22bulldozerwassam—pled,andthekinematicviscosityof
6、thenewoil,oilinmid—lifeandusedoi1wasmeasuresatthetemperaturerangefrom40℃to100cI=.BasedonAndradeequation,WahherequationandVogelequation,regressionanalysiswasperformedtofittheexperimentaldiscreteviscosity—temperaturedataoftheoils.Thefittingprecisionofthesethreekindsofviscosit
7、y-tempera—turerelationswascompared.TheresultsshowthatthehigheraccuracYisachievedwhenusingVogelequation.Thismethodcanprovidesthebasisforviscosityconversionofreal—timeonlinemonitoringoflubricatingoil.Keywords:on-linemonitoring;lubricating0ilviscosity;viscosity—temperatureequa
8、tion;conversionofreal-timeviscosity黏度是弹性流体动力润滑和流体动力润滑中最重同。不同润滑油的黏温关系式千差万别,要找到一种要的物
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