机械专业专业英语翻译

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1、机械专业专业英语翻译1inbelongingtoseparatedevices(suchasmotorandgearbox)coupling,shaftprecisionlinearcalibrationisdifficult,sotheelasticcoupling・Thecouplingofthiscouplingcanminimizethedamagecausedbytheaxialcalibrationerror・Theelasticcouplingalsoallowstheshafttodeforminaseparateloadsystem,andt

2、hetwoaxiscanfloatfreelyintheaxisdirectionwithoutinterference.Theflexiblecouplingcanalsoservetoreduceshockloadsandreducethevibrationthatispassedbetweentheaxisandtheshaft・Therotorpartofthemotorhasamomentofinertia,andwhenthemotorstarts,thetorqueoftherotorisrequiredtomakethemotormeetthe

3、speedofdemand.Ifthemotorshaftandhasalotofmomentofinertiaoftheloadisfixedconnection,motorcircuitbreakerclosedsuddenlystartatthesametime,soatthetimeofmotorcurrenttoachievemaximumallowablecurrent,islikelytomotordoesnotproduceenoughtorquetothemotorshafttodemandandmakethemotorspeedofflex

4、iblegroupwasburnout・Theclutchbetweenthemotorandtheloadshaftwillrestrictthestartingtorqueofthemotortoonlytherotortorqueandtheclutch・Theamountoflubricantscontrollingtheamountoflubricatingoilandtheslidingsurfaceofthepropertiescanmakethefrictionoffrictionverydifferentfromthepast・Factors

5、relatedtoignoreas,forexample,temperaturehumidityandonlyconsideringthefrictionbetweentwolubricatingoilfilm,thefrictionforcecanbetwosamesurfacethanthetop200timesbuttherewasnolubricatingoilproducedbyfrictionisreduced.Inthecaseofthelubricatingoilfilm,thefrictionisdirectlyproportionaltot

6、heviscosityofthefluid.Certainlubricants,suchaspetroleumderivatives,canobtainaparticularlylargeviscosityspanrequirementandmeettheneedforextensivefunctionalrequirements.Inthecaseofboundaryfriction,theeffectofviscosityonfrictionismuchlowerthanthatofthenaturalchemicalpropertiesofthelubr

7、icantsthemselves・Theframeofalmostallmechanicaltoolsofcastironismadefromcast-iron,becauseitpossessestheinsetfeaturesthatnootherinsetmethodcanobtain.Thecastinghasexcellenthardnessratioandexcellentvibrationdamping・Itisveryeasytochangethethicknessofthecastwallandtheplacewhereitisneeded・

8、5threadfastenersare