
SKF轴承供油体系6316-2RS的重新定义
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油膜反馈可以大大降低静液ya轴承的刚度,但在机床的运行中,经常出现夹套、切槽、压力损失等现象。SKF轴承薄膜反馈是***重要的。在实践中,造成灌木***和毛发的主要原因如下:Oilfilmfeedbackcangreatlyreducethestiffnessofhydrostaticyabearing,butintheoperationofmachinetools,jackets,grooving,pressurelossandotherphenomenaoftenoccur.SKFbearingfilmfeedbackisimportantfor***.Inpractice,themaincausesofshrubdeathandhairsareasfollows:(1)薄膜的塑性变形;(1)Plasticdeformationofthinfilms;(2)反馈慢。当外载荷突然变化时,当油膜不反转时,轴和套筒会产生摩擦。(2)Feedbackisslow.Whentheexternalloadsuddenlychanges,whentheoilfilmdoesnotreverse,theshaftandsleevewillproducefriction.(3)胶片延迟。薄膜使用时间长,变形延迟,与反馈参数的变化成正比。(3)Filmdelay.Thefilmhaslongservicetimeanddelayeddeformation,whichisproportionaltothechangeoffeedbackparameters.通过增加薄膜厚度和使用一些耐用材料可以获得良好的效果。这SKF轴承通常是接受刚性薄膜、预压荷载和预留漏洞的关键。具体方法是:用4mm厚的刚性薄膜代替1.4mm厚的薄膜,在0.05mm厚的下室垫层中,将轴承调整到比要求位置高0.05mm。Goodresultscanbeachievedbyincreasingfilmthicknessandusingsomedurablematerials.ThisSKFbearingisusuallythekeytoacceptingrigidfilm,preloadingloadandreservingloopholes.Specificmethodis:4mmthickrigidfilminsteadof1.4mmthickfilm,in0.05mmthicklowerchambercushion,thebearingisadjustedto0.05mmhigherthantherequiredposition.三。供油系统创新:Three.Innovationofoilsupplysystem:在SKF轴承静液ya轴承供油系统中,除粗、细滤外,其它部件对静液ya轴承有保护作用。供油系统应在原有系统的基础上进行改造。IntheoilsupplysystemofSKFbearinghydrostaticyabearing,othercomponentsh***eprotectiveeffectonhydrostaticYabearingexceptcoarseandfinefiltration.Theoilsupplysystemshouldbereformedonthebasisoftheoriginalsystem.(1)压力继电器和压力表(以前在蓄能器前面)连接到储能面板后面的出口,例如允许操作员查看燃烧室压力和入口压力的大小。当压差大于定值时,可立即停机,防止衬套断裂。例如,入口压力为2兆帕,而出口室压力为1.2-1.6兆帕。如果入口压力低于1.2兆帕,机器将停止。(1)Pressurerelaysandpressuregauges(formerlyinfrontofaccumulators)areconnectedtotheoutletbehindtheenergystoragepanel,suchasallowingoperatorstoseethemagnitudeofcombustionchamberpressureandinletpressure.Whenthepressuredifferenceisgreaterthanthefixedvalue,themachinecanbestoppedimmediatelytopreventbushingfrombreaking.Forexample,theinletpressureis2MPa,whiletheoutletchamberpressureis1.2-1.6MPa.Iftheinletpressureislessthan1.2MPa,themachinewillstop.(2)数字生长检测装置:(2)Digitalgrowthdetectiondevice:耐磨静电轴承主轴与轴瓦间隙为0.04-0.05mm。间隙中的油具有一定的阻力值。如果检测到电阻值变化,则可以知道时间间隔。以主轴为一极,衬套为另一极,测量电阻变化。经过处理后,信号送至光电bao警控制系统放大器,控制SKF轴承主轴电机的启动和停止,以停止轴与轴套之间的摩擦。Theclearancebetweenwear-resistantelectrostaticbearingspindleandbearingbushis0.04-0.05mm.Theoilintheclearancehasacertainresistancevalue.Ifachangeinresistancevalueisdetected,thetimeintervalcanbeknown.Measuretheresistancechangewiththespindleasonepoleandthebushingastheotherpole.Afterprocessing,thesignalissenttotheamplifierofphotoelectricBaoalarmcontrolsystemtocontrolthestartandstopofSKFbearingspindlemotortostopthefrictionbetweentheshaftandthesleeve.孔贾tou票:KongjiatouTicket:(1)将静液ya轴承的内部储蓄改为外部储蓄,增加压力表,并立即显示上下腔的压力。(1)Changetheinternals***ingsofhydrostaticYabearingtoexternals***ings,increasethepressuregauge,andimmediatelydisplaythepressureofupperandlowerchambers.为了便于维修,特别是定期清洗,它与内部省煤器是***的。Inordertofacilitatemaintenance,especiallyregularcleaning,itisincomparablewiththeinternaleconomizer.(二)储蓄率。储蓄率β的理论值介于1.2和1.5之间。根据多年的经验,***好是1.25。例如,在维修时,bi须严格控制轴承、前后衬套、同轴度、圆度和锥度的精度,以保证β值。根据机床的承载能力,确定E值(主轴和轴承套的中xin优先级),使β值***佳。(2)S***ingsrate.Thetheoreticalvalueofs***ingsratebetaisbetween1.2and1.5.Basedonyearsofexperience,***isgoodat1.25.Forexample,inmaintenance,Bimuststrictlycontroltheaccuracyofbearing,frontandrearbushing,coaxiality,roundnessandtapertoensurethevalueofbeta.Accordingtotheload-carryingcapacityofthemachinetool,theEvalue(middleXinpriorityofspindleandbearingsleeve)isdeterminedtomakethebetavalue***better.(3)当每个油室内没有SKF轴承主轴时,每个出油口的油柱bi须相同(检查方法)。当两者相差相等时,应接受挡板式省煤器开度的关键点,改变流量。(3)WhenthereisnoSKFbearingspindleineachoilchamber,theoilcolumnBiofeachoiloutletmustbethesame(inspectionmethod).Whenthedifferencebetweenthetwoisequal,thekeypointofbaffleeconomizeropeningshouldbeacceptedandtheflowrateshouldbechanged.文章来自:SKF轴承www.wh-Articlefrom:SKFBearingwww.wh-文章来自:INA轴承a-Articlesfrom:INABearinga-文章来自:NSK轴承Articlefrom:NSKBearing***:524085168电话:0510-81207777手机:13311666672/13395185757)