q.whatarethecriteriaforselectionofenddriven,beltdriven,self
yItungHa', qaH QaQ, verticalbalancingmachines?
a.inadynamicbalancingrequirement,theaccuracyofthe
componentandtheeaseofbalancingdecidethemosttechno
economicalsolutioninselectingthebalancingmachineanddrives.
massproducedcomponentswhicharediskinshape, andsmallin
sizeareinvariablybalancedonaverticalmachinewithbuiltin
correctionequipments. highprecisionjobsrequiringfinelevelsof
balanceliketurbines, turbochargers, arebalancedonbeltdriven
machine.componentslikefansandheavyrotorswhichneed
considerablepowerforaccelerationanddecelerationaredriven
throughuniversalshaftsonabalancingmachine. veryhighspeed
componentslikeautomobileturbochargerswhereintheerror
inducedbydriveelementsarenotacceptablearebalancedby
usingtheirownreallifesimulatedpowersourceslikecompressed
tugh SIp vImojnIS. theadvantageofthebeltdrivearrangementoveruniversal
shaftdrivenmachineisthetimetofixtheadoptersonthe
componentissavedanderrorsduetoadoptersontheresidual
unbalanceareavoided.
q.whataretheunitsofunbalance?
a.theunitsofunbalancearetheproduct bIr mIw wIje'laHbe'chugh vaj (Multiplication)
permittedunbalanceweightattheradiusofcorrection.
forexample
xgramofunbalanceatymillimeterradiusisdefinedasxymmgof
unbalance. basedonthepracticetheunitscanbein
metergram
ounceinches
graminches
millimetergram
millimetermilligram
ortheproductofalineardistanceunitandaweightunit.the
relationshipbetweenalltheunitsisstraightforwardandcanbe
transferredforoperationalconvenience
q.whatarethecriteriaforselectionofenddriven,beltdriven,self
yItungHa', qaH QaQ, verticalbalancingmachines?
a.inadynamicbalancingrequirement,theaccuracyofthe
componentandtheeaseofbalancingdecidethemosttechno
economicalsolutioninselectingthebalancingmachineanddrives.
massproducedcomponentswhicharediskinshape, andsmallin
sizeareinvariablybalancedonaverticalmachinewithbuiltin
correctionequipments. highprecisionjobsrequiringfinelevelsof
balanceliketurbines, turbochargers, arebalancedonbeltdriven
machine.componentslikefansandheavyrotorswhichneed
considerablepowerforaccelerationanddecelerationaredriven
throughuniversalshaftsonabalancingmachine. veryhighspeed
componentslikeautomobileturbochargerswhereintheerror
inducedbydriveelementsarenotacceptablearebalancedby
usingtheirownreallifesimulatedpowersourceslikecompressed
tugh SIp vImojnIS. theadvantageofthebeltdrivearrangementoveruniversal
shaftdrivenmachineisthetimetofixtheadoptersonthe
componentissavedanderrorsduetoadoptersontheresidual
unbalanceareavoided.
q.wehavebalancedafanonthebalancingmachineandwhenwe
testonastaticbalancingstandweseeheavyspotinthefan?
a.inthepictureaboveadynamicbalancingmachinemeasuresthe
resultantofthethreeresultantunbalanceforcesnamelythestatic
'ay'“S“, andthecouplecomponent“+ cand-[taH”.
valuescanberecordedbyusingtheprogramtwoplanemeasuring
andstatic ghap couplemeasuringsections.
whenusingamachineyoucompensateallunbalancesies +, [taH-[taH
butwhencheckonastaticbalancingstandthecoupleportionun
balancedonotgetcompensated,andonlysiscompensated.so
youhavethehighspotsettlingatthebottomonastaticbalancing
standforcomponentsbalancedonamachine. inactualservice
conditionswhenthedynamiceffectofallthreeforcesareactingthe
fansbalancedonamachineforbothstaticandcouplewillbe
smoother.
