Q입니다.Whyismeasuringofbalancingspeedofthecomponentvery
importantinabalancingmachine?
1.Balancingmachineisanindustrialmachine.Themachineis
locatedinafactoryenvironmentalongtheprocessline입니다. Manytypes
ofindustrialnoiseselectrical, 기계, magneticwillexistinan
industrialenvironment입니다. Besidesthisbalancingmachinehasdrive
elementslikemotors, 폴 리, beltswhichalsorotatealongwiththe
구성 요소입니다. Thecomponentismountedonrollers, androllersalso
rotatealongwiththecomponent입니다. Thetransducerswillpickup
signalsfromallrotatingelements입니다. Theelectronicsofthebalancing
machineneedsareferencesignaltoextracttheunbalancesignalof
thecomponentbeingbalanced입니다. Thespeedsignalofthecomponent
beingbalancedprovidesthereferenceforsignalextraction입니다.
Inolderstroboscopemachines, itcanbeobservedthatthe
unbalancelocationwillstartshifting/oscillatingoverawideangle
whenbalancingisdone입니다. Inmodernmachineswithphaselockloop,
theshiftofangleisreducedtoinsignificantlevels입니다.
Q.Whydoweneedmultispeedbalancingmachines?
A.Multispeedbalancingmachinesarenormallybigsizemachines
andmachineswhichhandlearangeofjobs입니다. Incasethecomponent
isamassproducedcomponentwithpredictablelevelsof
불균형, singlespeedmachinescanbetunedtobalancethe
componentsfasterandwellwithinthetolerance입니다. Butinheavy
구성 요소, thelevelofunbalancemaynotbeknowninitially입니다. 그것은
maybehazardousfromthepointofsafetytodirectlyrunthe
componentattherequiredbalancingspeed입니다. 그래서, heavycomponents
arerunatlowerspeeds, initialbalancingisdone Furtherbalancing
isdoneathigherspeedstillthedesiredlevelofaccuracyis
달성.
Q.DoweneedtoputDynamicBalancingMachinesonafoundation?
A.Balancingmachineisanindustrialmachineusedtomeasure
Vibrationandcomputetheresidualunbalance.ModernHardBearing
BalancingMachinesareforcemeasuring.ItisessentialthattheMachine
donotvibrateorshakeforcorrectmeasurementofunbalanceamountand
phaseangle입니다.
Formorepreciseresultsitisrequiredtomountthemachinesfirmlyonanindustrialfloor입니다.
Q.Whatisunbalancereductionratio?
A.Balancingmachineinstrumentationindicatesthelevelofunbalanceon
thecomponentbeingbalanced입니다. Agoodmachinecanindicateavalueand
whenacorrectionequivalenttothevalueshownisexecutedthenextresultantresidual
unbalanceshouldbebelow90-95 %ofthefirstindicatedvalue.
어, onthefirstrun, ifthemachinehasshownsay50gramatagivenlocation
Whena50gramweightisaddedatthatlocationandaresidualunbalancereadingtaken,
incasethemachineindicatesavalueof5gramandbelow, thenitissaidthatthemachine
ishavinganunbalancereductionratioofabout90 %입니다.
FormoredetailsrefertotheISOstandards1940, 2953etc
Q.Whatisplaneseparation,crosseffect,influence?
A.Intwoplanedynamicbalancingmachines,theresultsareindicatedintwo
correctionplanes입니다. Whenacorrectionismadeononeplane, theeffectofthe
unbalancecompensationonthesecondplane, isdefinedasplaneseparation
orcrosseffectorinfluence입니다. 일반적으로, theplaneseparationwillbewellbelow3 %입니다.
Incomputerbasedhardbearingdynamicbalancingmachines, theplane
separationisachievedmathematically입니다. Souserstendtogetbetter
levelsofplaneseparationoncomputerizedhardbearingdynamic
balancingmachinesandthatisnotthecasewithsoftbearing
machineswhereinunbalancesignalsareelectronicallymixedand
modulatedforindicatingtheresults입니다.
