friction clutches - Arten Freios e Embreagens Industriais

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Table of Contents◗FUNCTION EXAMPLES“Air Champ” ®REVERSING AND MULTIPLESPEED:Multiple clutches can change speedand/or direction — providing areduced load on the motor andstarter (the motor never stops),faster changes and higher cyclingcapabilities.◗ SELECTION CONSIDERATIONS:Transmitted horsepowerTorqueRPM◗ EXAMPLETwo clutches are used a reversing drive.By alternating engagement from oneclutch to the other, the line shaft reversesdirection. Because the sprocket diametersvary from drive A to B, the speed ofthe drive changes each time it reversesdirection. The clutches are mounted onthe output shafts of a bevel gear boxwhich are rotating at 383 RPM. The gearbox is driven by a 1/2 horsepower motor.◗ TORQUE CALCULATION:Torque =D0412341963000(HP)K =63000(.5)2 = 165 in. lbsRPM 383◗ UNIT SELECTED:Two L-600, Pilot Mount clutches,Product Number 805270.D05123420◗ CONTROL CIRCUITEach clutch is cycled six times perD06123421minute. For this reason, a doublesolenoid, 4-way spool valve is selected.The double solenoid feature providesquick response in both spool shiftdirections.4-WAY DOUBLE SOLENOID SPOOLCONTROL INTERNALLY OPERATED FORCLUTCH AND BRAKE OPERATING FROM30 TO 100 PSI◗ “AIR CHAMP”D01129429PRODUCT CONSIDERATIONS:BW-XHWF–450L–600M–800H–1000DPC9T–15T4H30P–4H70PLSCC5H30P–5H80P4-WAY CONTROL–INTERNAL PILOTEDPROD. NO. 2169REGULATORPROD. NO. 940001QUICK EXHAUST VALVESPROD. NO. 945125MUFFLER–OPTIONALPROD. NO. 939400FILTERPROD. NO. 939101LUBRICATORPROD. NO. 939201376
Table of Contents“Air Champ” ®FUNCTION EXAMPLESINCHING AND JOGGING:To position, set-up, thread or checkout a machine. This motion isusually sudden and uncontrollable;hard on motors and starters.A clutch or clutch/brake providesgentle inch/jog function that isindependent of the drive motor.◗ SELECTION CONSIDERATIONS:Linear inertiaRotational inertiaTransmitted horsepowerRPMTorqueCycle rateContinuous thermal horsepowerrating◗ EXAMPLEA clutch-brake is placed in the drivesystem to position boxes, carried on aconveyor, under a hopper which fills theboxes with a product. A box is positionedunder the hopper every second. This applicationis classified as a cyclic start-stop.◗ UNIT SELECTED:An FWCB Clutch-Brake-Sheave with a 3.35O.D. sheave, Product Number 826700.◗ THERMAL CHARACTERISTICS:Check the continuous thermal horsepower(HPt) requirement based on theTotal Inertia, RPM and cycle rate.◗ ENERGY PER CYCLE:E c = .00017(WK 2 ))(RPM 2 ) =.00017(7)(180 2 ) = 38.56 ft. lbs.Where: E c = Energy per cycle in ft. lbs.WK 2 = Total inertiaRPM = Speed at the clutch-brake◗ “AIR CHAMP”PRODUCT CONSIDERATIONS:MODULAR CLUTCHES &CLUTCH BRAKES625–1375◗ CONVEYOR REFLECTED INERTIA:WK 2 r = W( V ) 22πNWhere:= 120( 189 ) 2 2π180 = 3.35 lb. ft 2W =120 lbs. (Conveyor load including belt)V =189 FPMN =180 RPM at the clutch brake◗ DRUM AND PULLEY REFLECTEDINERTIA:WK 2 r =WK 2 ( N 1) 2N cb◗ THERMAL HORSEPOWER DISSIPATIONREQUIREMENT:HP T = E c (CPM) =3300038.56(60) = .07 horsepower33000Where:HP T = Thermal horsepower requirementE C = Energy per cycleCPM = Cycles per minuteFrom the Thermal Horsepower vs. RPMgraphs the FWCB will dissipate .07horsepower at 180 RPM.D03133440DO1131433FWCDB–HWCDBFCB-450, LCB-600, MCB-800BWCB–HWCB= 25 ( 60 ) 2 = 2.78 lb. ft 2180Where: WK 2 = 25 lb.ft 2N 1 = Speed of the loadN CB = Speed at the clutch brakeInertia of the pulley, shaft and clutchbrake= .87 lb. ft 2Total inertia =3.35 + 2.78 + .87 = 7 lb. ft 2◗ CONTROL CIRCUITA 4-way, double solenoid (with quickexhaust valves), control circuit isused because of the rapid cycle rate.4-WAY DOUBLE SOLENOIDSPOOL CONTROL INTERNALLYPILOTED FOR CLUTCH ANDBRAKE OPERATING ABOVE 30CPM — FROM 30 TO 100 PSI.D03131435D04131436FMCB–130–19 AND 24FMCB–7–28 AND 38FMCB–8–38 AND 42FMCBE625, 875, 1125, 1375◗ TORQUE CALCULATION:T = .039(WK2 )RPM .039 (7)180t =1 =49 in. lbs.Where:WK2 = Total inertia in lb. ft 2RPM =Speed at the clutch-braket = Time in secondsT = Torque in inch poundsREGULATORPROD. NO. 940001FILTERPROD. NO. 939101LUBRICATORPROD. NO. 9392014-WAY CONTROLINTERNAL PILOTEDPROD. NO. 2169QUICK EXHAUST VALVEPROD. NO. 945125MUFFLER–OPTIONALPROD. NO. 939400D05131437377
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Table of ContentsPRODUCTCAT ALOG10-
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Table of Contents◗PRODUCT NUMBER
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Table of Contents◗FAMILY OF PRODU
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Table of Contents◗FAMILY OF PRODU
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Table of Contents“Air Champ” ®
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Table of Contents◗APPLICATION GUI
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Table of ContentsWeb ProductsGUIDE
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Table of Contents◗ MICRO FRICTION
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Table of Contents◗“Air Champ”
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Table of ContentsWeb ProductsIn acc
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Table of ContentsWeb ProductsTENSIO
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Table of ContentsWeb ProductsHousin
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Table of Contents◗ AIR PRESSURE C
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Table of ContentsEclipse SERVOMOTOR
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Table of ContentsEclipse SERVOMOTOR
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Table of ContentsEclipse LINEAR MOT
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Table of ContentsEclipse NEMA AC MO
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Table of ContentsEclipse METRIC AC
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Table of Contents◗ BW MODEL BRAKE
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Table of Contents◗CALIPER BRAKES
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Table of Contents◗CALIPER BRAKESS
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Table of Contents◗DRUM BRAKES“A
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Table of ContentsDRUM BRAKES “Air
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Table of ContentsDRUM BRAKES “Air
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Table of Contents◗HEAVY DUTY BRAK
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Table of Contents◗METRIC BRAKES
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Table of Contents◗BRAKESWeb Produ
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Table of Contents◗TENSION CONTROL
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Table of Contents◗CLUTCH/BRAKES
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Table of Contents◗CLUTCH/BRAKESFM
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Table of Contents◗CLUTCH/BRAKESA
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Table of ContentsCLUTCH/BRAKES “A
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Table of Contents◗METRIC CLUTCH/B
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Table of Contents◗WEB GUIDING CON
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friction clutches - Arten Freios e Embreagens Industriais

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