Q.Whyismeasuringofbalancingspeedofthecomponentvery
ta importantinabalancingmachine wáaj.
.Balancingmachineisanindustrialmachine.Themachineis
locatedinafactoryenvironmentalongtheprocessline. Manytypes
ofindustrialnoiseselectrical, mecánico, magneticwillexistinan
industrialenvironment. Besidesthisbalancingmachinehasdrive
elementslikemotors, poleas, beltswhichalsorotatealongwiththe
componente. Thecomponentismountedonrollers, androllersalso
rotatealongwiththecomponent. Thetransducerswillpickup
signalsfromallrotatingelements. Theelectronicsofthebalancing
machineneedsareferencesignaltoextracttheunbalancesignalof
thecomponentbeingbalanced. Thespeedsignalofthecomponent
beingbalancedprovidesthereferenceforsignalextraction.
Inolderstroboscopemachines, itcanbeobservedthatthe
unbalancelocationwillstartshifting leti' oscillatingoverawideangle
whenbalancingisdone. Inmodernmachineswithphaselockloop,
theshiftofangleisreducedtoinsignificantlevels.
Ta Q.Whydoweneedmultispeedbalancingmachines wáaj.
A.Multispeedbalancingmachinesarenormallybigsizemachines
andmachineswhichhandlearangeofjobs. Incasethecomponent
isamassproducedcomponentwithpredictablelevelsof
desequilibrio, singlespeedmachinescanbetunedtobalancethe
componentsfasterandwellwithinthetolerance. Butinheavy
componentes, thelevelofunbalancemaynotbeknowninitially. U
maybehazardousfromthepointofsafetytodirectlyrunthe
componentattherequiredbalancingspeed. Beyo', heavycomponents
arerunatlowerspeeds, initialbalancingisdone. Furtherbalancing
isdoneathigherspeedstillthedesiredlevelofaccuracyis
Náakal.
Ta Q.DoweneedtoputDynamicBalancingMachinesonafoundation wáaj.
A.Balancingmachineisanindustrialmachineusedtomeasure
Vibrationandcomputetheresidualunbalance.ModernHardBearing
BalancingMachinesareforcemeasuring.ItisessentialthattheMachine
donotvibrateorshakeforcorrectmeasurementofunbalanceamountand
Tu'ux.
Formorepreciseresultsitisrequiredtomountthemachinesfirmlyonanindustrialfloor.
Ta Q.Whatisunbalancereductionratio wáaj.
A.Balancingmachineinstrumentationindicatesthelevelofunbalanceon
thecomponentbeingbalanced. Agoodmachinecanindicateavalueand
whenacorrectionequivalenttothevalueshownisexecutedthenextresultantresidual
ofthefirstindicatedvalue unbalanceshouldbebelow90 - 95 ti chúumuk.
Porejemplo, onthefirstrun, ifthemachinehasshownsay50gramatagivenlocation.
Whena50gramweightisaddedatthatlocationandaresidualunbalancereadingtaken,
incasethemachineindicatesavalueof5gramandbelow, thenitissaidthatthemachine
ishavinganunbalancereductionratioofabout90 ti chúumuk.
FormoredetailsrefertotheISOstandards1940, 2953etc.
Ba'ax Q.Whatisplaneseparation, crosseffect, influence.
A.Intwoplanedynamicbalancingmachines, theresultsareindicatedintwo
correctionplanes. Whenacorrectionismadeononeplane, theeffectofthe
unbalancecompensationonthesecondplane, isdefinedasplaneseparation
orcrosseffectorinfluence. Normalmente, theplaneseparationwillbewellbelow3 ti chúumuk.
Incomputerbasedhardbearingdynamicbalancingmachines, theplane
separationisachievedmathematically. Souserstendtogetbetter
levelsofplaneseparationoncomputerizedhardbearingdynamic
balancingmachinesandthatisnotthecasewithsoftbearing
machineswhereinunbalancesignalsareelectronicallymixedand
modulatedforindicatingtheresults.
