Document x1a8QE4mNb9aqNYbxo7zx0eb0

DownloadSearchable PDFRandom document
I 11\* at v - * * ' "X1 VV\ * XI V`- 505 electro mechanical brakestorque ranges available from 65 to 9000 fb. ft. I SEVEN WHEEL SIZES AVAILABLE: 8", 10", 13", 16", 19", 23" & 30" Cutler-Hammer electro mechanical, magnetic shoe brakes conform to NEMA-AISE standards and are designed for application on movable bridges, cranes, rolling mill drives, hoists, etc. Wear and freezing are virtually non-existent on C-H brakes due to their design which' eliminates all pivot pins but one (pull rod to armature). This single pin type pivot is maintained because it is doubly functional In that it also allows the pull rod to be easily swung out of the way if straightup removal of the wheel is necessary. The structural members of the 8" thru 23" brakes are made of ductile iron and their bases and arma tures are made of cast steel. The 30" differs only in the base which is a steel weldment with lam inated steel armatures. Three enclosures are available to protect the brake from severe environments: (1) Partial Wheel Cover -- which goes over the top of the wheel and ex tends over the shoes; (2) NEMA 3 Lift Off -- which covers everything but the coil and outer arma ture; and (3) NEMA 4-5 -- which is watertight and dusttight. optional manual release lever Quick acting, self resetting, this device permits simple, controlled torque release in the event of power failure. Operator merely raises the lever which cams the armatures together thus allowing controlled release of the brake holding force. There's no change in brake adjustment, no delay in resetting, and no downtime for re-adjustment. Available for 8" thru 23" brajte sizes. CH-000478 SCF-EC-1037 SC-EEI-0810 ;..^;"'iv:'; 506 ` & ' `I1 *v i vi 509 hydraulic brakes variable braking provides the ultimate in stopping control 509-- Hydraulic FIVE WHEEL SIZES AVAILABLE: 8", 10", 13", 16" & 19" 506 -- Electro hydraulic Hydraulic brakes give operators complete control of speed at which load is moving-- thus increasing effi ciency and improving safety. With the Type 506 Elec tro Hydraulic Brake the electrical system holds the brake released, and the pedal-operated hydraulic sys tem enables controlled variable pressure braking for slowing and stopping functions. Type 509 is hydraulic only, depending on spring tension to hold the brake released. The hydraulic systems in both models oper ate the same as the braking system of an automobile -- the more pressure applied to the pedal, the greater the braking torque. Both systems operate over the full range of speeds. - C-H hydraulic brakes comply with NEMA-A1SE stan dards. Eight out of ten parts are interchangeable with mechanical brakes to considerably reduce parts inven tory requirements for users of both mechanical and hydraulic systems. ` optional power assist accessory This new device enables the use of hydraulic braking power on as many as four brakes simultaneously from a single control station. What's more, control, may come from any remote source such as a footswitch, pendant station or radio control transmitter. The pow er assist greatly increases braking efficiency on many applications and reduces operator fatigue. CH-000479 CUTLER-HAMMER INDUSTRIAL SYSTCMS DIVISION. Mihutukta. Wit S32DI COh C SOi HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic 1 T ECHMICM ' I HFORMATH3N P UlLtCATION 505/506 DESIGN CHARACTERISTICS GENERAL - D-c operated shoe brakes. Short- stroke magnet and armature structure. Electrically released and spring set. 506 has added hydraulic system independent of spring-set mechanisms. STANDARDS -- AISE and NEMA ratings and dimensions. NEMA 1 mounting (base on horizon tal surface). TORQUE RATINGS-65 lb-ft through 9,000 Ib-ft. Equal stopping and holding when spring-set. Equal torque for either direction of wheel rotation. Hydraulically applied torque infinitely variable. COILS - Series V, or 1 hour. Shunt intermittent of continuous. Class B insulated. NEMA 3 enclosed. Leads (about 4" long) supplied with copper lugs. Revisible so that leads point toward or away from wheel. Separately supplied resistor for shunt brakes. LININGS -- Asbestos with constant coefficient of friction under'Operating conditions. Pinned to brake shoes. WHEELS -- Special cast ductile iron. Standard castings for most -^requirements. Tapered bore (with keyway), tolerance .005", tapers of 1.250" or 1.219" per fool on diameter. Straight bote (with keyway and setscrew), tolerance .001". Physical and metallurgical properties not affected by excessive temperatures. ; CONSTRUCTION -- Structural members made of ductile iron, except 30" base which is plate steel. Laminated armatures in 30", cast steel armatures in 8" through 23". -' INSTALLATION - Magnet end can be to. left or right. Adjustments and settings require only 1 cresent wrench. AH adjustment points are readily accessible. ' - sas, OPTIONAL MANUAL RELEASE LEVER OPTIONAL FEATURES ' . COIL CIRCUIT FOR SHUNT BRAKES - Pro- iective panel to obtain intermittent duty ratings on continuous duly applications. A-c. rectifier pane) which has coil protective circuit included for 8" through 23" brakes. A-c rectifier panel for 30" brakes but without coil protective feature. Increased or decreased release and/or set time, special voltages, etc. ENCLOSURE -- Wheel protective caver on pull rod of 505 only. NEMA 3 weather resistant. NEMA 4-5 watertight and dustlight. WHEEL -- Special offsets, bores, castings, etc. Safety flange, VS" x lZ", on motor side, shoes retain wheel if wheel loosens or if motor shaft breaks. . 1 DUPLEX INSTALLATION, 506 ONLY - 1 brake operated from 2 master Stations. 2 brakes operated from 1 or 2 master stations. MOUNTING -- NEMA 2 mounting (base on ver tical surface with magnet structure up). MANUAL OPERATION, 505 8" THROUGH 23" ONLY -- Manual self-returning variable ' torque lever.Screw type non self-returning release. CH-000480 6CHNICAI ' I NFORMATION UBIICATION _J 5/5 06 HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic ' GSCRIPTION -H 505 And 506 brakes are electromechanical D-coperated hoe brakes. They are elctrically released and spring set ad are therefore fail-safe under power failure. Torque due spring-setting Is Hxed as adjusted. 506 brakes have iddec!) hydraulic linkages which permit variable torque inependent or spTing-set torque. loth brakes are identical except for the pull rod and the iner shoe Lever. 505 brakes shipped since January, 1962, an readily be converted to 506 brakes, stalled descriptions of standard and optional features of `505 and 506 brakes start on this page Immediately fter 4'Selection". ITERATION lien the coil Is energized, the armatures move together to empress the torque spring and move the shoes away from le wheel to release the brake. De-energizing the coll Hows the torque spring to separate the armatures and press le shoes against the wheel to'set the brake. Torque is onstant during stopping and holding. 06 brakes operate exactly as SOS brakes with the exception net the operator can impose hydraulically actuated torque t any time. In normal (service) operation, the brake is leclrically released constantly, and braking is hydraulic, pke Is spring-set only to hold (park) the system. f a hydraulic system la used, options are available to operte 1 or 2 brakes from 2 masters or from l master, SELECTION ror most applications, the brakl torque must simply equal he full load motor torque as reflected to the wheel. The ormula for this figure is: _ 5250 * HP e RPMwheej Ifllh the torque requirement known, and the type and duly :ycle established, the Selection Table on page 4 will ndicate a suitable brake either with or wlthout optional anels. n some applications it Is common to use a different torque aling for the brake. A crane trolley Is an example where i 50% brake Is typical. A crane hoist typically employs i 125% or a 150% brake. k few applications require a thorough analysis ol the brake rod the system. The items which must be considered, ogether with data and formulae, begin on page 11. Detailed descriptions of standard and optional features f C-H50S and 506 brakes follow. USE AND MEftA STANDARDS t' 7 .brakes conform to AISE and NEMA standards for mill j. Js. These standards prescribe items such as: wheel iiamelcrs and widths, torque increments, height of wheel ;enterline, mounting dimensions, voltage and current values or release and set, etc. For mill motors, these same itnndards also fix wheel offsets, hares, and mounting interlines between the motor and the brake. Dimensions m<J drawings of standard brakes with respect to mill motors 5IZE, TYPE AND DUTY CYCLE Brakes are categorized by the factors of: 1) size, wheel diameter, 2) type, power supply to coll, and 5) duty cycle, coil tlme-on lime-off. These are summarized hi the "Selec tion Table" on page 4, SIZE --See "Selection Table", TYPE -- Brakes are designated as series or shunt' Series brakes have their colls In the armature circuit of a D-c motor. Shunt brakes have their coils separately energired from a D-c source. The separate supply may be A-c if an optional rectifier panel Is used, (page 5). DOTY CYCLE -- The tlmc-on time-off of a brake coil determines its duty cycle. The duty cycle definitely affects the maximum torque rating of a brake, and the followiag will illustrate this. Given a fixed volume for the coil, wattage dissipation limits the time the coll can be energized without over heating, This is analogous with mill motor ratings, and the duty cycle of brakes Is purposely selected to coincide with mill motor standards. A coll energized for a short period can carry relatively high currents and compress a "stiff** torque spring. With this spring as a reference, the torque rating Is established as the practical maximum for this cycle. Standards are: series Vi hour, and shunt Intermittent. For longer cycles, the coil can carry less current, compress a "less-stiff11 spring, and brake torque must be reduced. Series 1 hour ratings are reduced to 65% of % hour brakes, and qhunt continuous ratings are reduced to 75% or intermittent brakes. Shunt applications which use an auxiliary protecting panel (either A-c or D-c) can have Intermittent ratings for all applications if these panels incorporate a forcing and protecting circuit. See page 3, From these considerations, standard duty cycles are listed below. > l, Series. D-c motor only. 505 only. a. V] hour duty, or crane duty. The coll carries 100% of full load armature current for % -hour without over heating. This corresponds to 1 minute on, 2 minutes off, or `/j time duty. b. \ hour duty, or mill duty. The coil carries 100% of full load armature current for 1 hour without over heating. This corresponds to 1 minute on, 1 minute ofr, or ^ time duty. . c. C-H and NEMA standards are that series brakes will release at 40% and set at 10% of full load armature current. 2, Shunt, D-c supply, A-c or D-c motor. CH-000481 a. Intermittent, or L hour shunt. The coll and Its perma nent series resistance are across 100% of line voltage for l hour without overheating. b. 1 Continuous, or 8 hour shunt. The coil and its perma nent series resistance are across 100% of line voltage for 5 hours (considered to be continuously) without overheating. c. With optional coil protective panel. (See page 3). The coll circuit i$ across 100% of Line voltage continuously without overheating. Torque rating is the same as intermittent duty brakes. d. C-H and NEMA standards are that shunt brokes will HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic 3 T ECHNICAl ' I NFORMATION P UBUCATION 505/506 SIZE, TYPE AND DUTY CYCLE (Continued) 3. Shunt, A-c supply, A-c or D-c motor, A-c rectifier panel. a. panel for 8" through 23" brakes. See below. The optional panel for these sizes includes the protecting circuit and a rectifier. The pane] and the coll cir cuit can be continuously energized at ]00?< of A-c supply voltage without overheating. Torque rating Is the same as for intermittent duty. . b. Panel for 30" brakes. See below. This provides D-c from an A-c supply, but without the protecting feature* Therefore brakes are rated either intermittent or con tinuous. The panel and the coil circuit, at 100% of the' A-c supply voltage, can be energized without . overheating, for 1 hour for intermittent duty, or continuously for continuous duty. c. C-H and NEMA standards are that brakes will operate at 85% or the A-c supply volLage. ' WHEELS C-H brake wheels ere made of specially formulated ductile iron. This has friction characteristics similar to cast iron, and shock and strength characteristics like steel. Because C-H wheels are not heat treated or carburized^ they retain their physical and metallurgical properties at temperatures where wheels made of other materials undergo significant changes in their mierostruclure, C-H wheels wear evenly and smoothly in the form of fine flakes. For this reason, wheel scoring and lining erosion arc significantly reduced* LININGS C-H brake linings are made of high grade impregnated asbestos fibers. They are technically called "folded and compressed" linings. The materials used In C-H linings result In a lining which has a constant coefficient of fricLion under operating conditions os well as Long life. COILS ' Coils are made with Class 8 insulation, and they are NEMA 3 enclosed in stainless steel, Colls have 2 leads (about 4* long), and each lead Is supplied with a suitable Jug. Coils are reversible so that the leads can point toward or away from the wheel. MOUNTING 5QS and S06 brakes are designed for NEMA 1 mounting (base on horizontal surface). Optionally they are available for NEMA 2 mounting (base on vertical surface, magnet end up). Dimensions are the same for either mounting. ' CONSTRUCTION Structural members are made of ductile iron, except the 30" base, which is a steel weldment. Armatures in 81(-23n brakes are cast steel; 30" armatures are made of laminated steel. C-H brakes have only 1 true pivot pin (pull rod to arm ature). By using hardened sockets wherever possible, wear and slicking al pivot points Is negligible. , D-c PROTECTIVE PANEL, SHUNT ONLY In some continuous applications, the required torque Is between the intermittent end the continuous rating for a brake. Normally* a larger brake would be selected. As an option, a protective panel which permits using the Smaller brake is available* The scheme utilized Is below. The panel uses a forcing circuit to release the brake and a timer and switch lo insert-resistance into the coil circuit. This keeps the coil temperature In bounds, and Intermit!enl torque ratings are possible on continuously energized brakes* This same forcing and protecting scheme Is used in A-c rectifier panels for B"-23H brakes. A-C RECTIFIER PANEL,'SHUNT, a"-23" ONLY For A-c application, similar to the above, the protective panel is enlarged lo Include a suitable rectifier. This allows intermittent ratines for continuous applications from an A-c source. D-c voltage is 81% of A-c voltage. A-e RECTIFIER PANEL, SHUNT, 30" ONLY This optional panel does not include the forcing/protecting circuit. It only makes il possible to use 30" brakes from an A-c source. Separate series resistance is Included, as is an integral 3 phase transformer, D-c voltage is 230 V. CH-000482 ECHHICAl I HFORMATION (' \ UBUCATK3M >05/506. HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic 9/15/64 NCLOSURES Land u id brakes are open type, but they (unction successlily lit moist or dusty environments. For extreme conditions, enclosures are available. They are: . Partial wheel cover. This is a partial cover over the top of the wheel and extends aver the shoes. It.Is mounted on the pull rod, and la not available (or 506. , NEMA 3. This U a lift-off enclosure ' which covers everything but the coil and the outer armature. The Centerline height of the wheel Is unaf(ected, and the shaft cut-out is Included. . NEMA 4-S watertight and dusttight. This Is a splitcase gasketed enclosure without cutouts. The height of the wheel centerline Is increased. As an option1, a shaft hole, gasket or shaft seal and retainer can be provided. Holes, boll holes, and gaskets for mounting directly to other machinery are not available. MANUAL RELEASE, 505 ONLY, 8"-23" ONLY. Two mechanisms are available. They are: 1. A cam-action lever which is self-returning to the set position. Due to the cam action, a set brake can be released and re-set as desired. . 1. A screw-type release, non-self returning. This is a wrench-operated release and must be releesed and re-set with a wrench. BRAKE ADJUSTMENT . In any application, torque should be adjuated for best performance rather than maximum. The permissible range of adjustment Is: ALL series brakes: 100% to 50% of % HOUR RATING. ALL shunt brakes; 100% to 50% of INTERMITTENT. The importance of proper installation and adjustments cannot be overemphasized. Check the nameplate on the brake for the 100% torque setting. ELECTION TABLE, 505 AND 504 BRAKES RATED TORQUE, Lb-Ft Sprg. (spring set) or Hyd. (hydraulically set) f1 Brake Silo Series (505 Only) Yl Hour 9 Hour or Of Crane Mill D-c Shunt, 5 1 5, 230 or 550 V. Intermittent or 1 Hour Shunt Continuous dr 3 Hour Shunt Continuous with Coil Protective Panel A-e Shunt Continuous with A-c Rectifier Panel m2 Wheel of. RPM, Wheel Max. WEIGHTS, Lb. Wheel Only Brake and Whee 1 Sprg. Sprg. Sprg. or Hyd, Sprg. Hyd. Sprg. or Hyd. Sprg. or Hyd- Lb* Ft2 RPM Ship. Met Ship. Her B" 100 10" ZOO 13" 550 16" 1,000 .65 L30 365 650 100 200 550 1,000 75 100 150 200 400 550 750 1,000 100 200 550 1,000 100 200 ' 550 1,000 1.1 5,000 IB 12 178 150 3' 4,000 35 25 263 240 12 3,180 75 59 510 465 36 2,500 120 102 700 645 19" 2,000 1,300 2,000 1,500 2,000 .2,000 2,000 70 2,110 185 160 1,220 1,150 23" $05 only 4,000 30" 505 only 9,000 2,600 6,000 4,000 9,000 3,000 6,750 - 4,000 9,000 4,000 9,000 int, 6,750 coni. 210 880 1,740 315 290 1,830 1,735 1,340 1,180 1, IQ0 4,100 3,920 T) Actual hydraulically applied torque is dependent only on force on pedal. See page 6. i> 208-240/1/60-or 44Q-480/1/60 for 8"-23". Same voltages except 3 phase for 30". CH-000483 HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic POWER FOR SHUNT BRAKES Broke Site 8" 10" 13" 16" 19" 23" D-c Opcrfllftd 115, 230, or 550 V. Intermittent Separate (j) Permanenl Series Resistance Power, Continuous Seporofe Permoncnl Series Rcilsfonce Power, Quon, Type KW. Quon. Type KW. i H .44 i H .26 i H .SO i H .28 i H .66 i H .43 i H .62 i H .49 i H 1.24 i H .60 2 H 1.92 i H .79 30" 1 ws 4.50 2 WS 2.95 Resistance data Tot 230 V. Refei to C-H for other voltages. From A-c Rectifier Ponel, 208-240 V. 60 Cycle or 440-480 V. 60 Cycle Separate Permanent Series Resi stance Power, KVA. Inrush Sealed - - Int. 1 - WS Box Cant, 2 - WS Box 1.75 1.85 2.60 2.82 3.22 4.17 3.5 ,25 ' .25 .26 .26 .41 .51 3.5 1 1 1 1 1 1 3 5 T ECHNtCAL '' I NFORMATION P UBUCATION 505/506 Prom D-e Protective Panel i jj u t-. 57 OVS SHUNT BRAKES, MAXIMUM SPEEDS OF OPERATION Brake Site STANDARD Intermittent or Continuous Partial Voltage Coil and Separate Resistance OPTIONAL Intermittent Duty Coil Protective Panel or A-c Rectifier Panel RELEASE, Sec. SET, Sec. RELEASE, Sec. SET, See. B" ,25 .25 .22 .15 10" .30 .30 .25 .20 13" .35 .40 .30 .22 16" .45 .45 .40 .25 19" .50 .50 . .45 .30 23" .55 .55 .50 .32 30" .55 .10 ,55 . .10 Use of either on all but A-c operated 30" brake allows intermittent duly rating on continuously energized coll circuits. The A-c opeiated 30" brake is raled either 6,750 lb-it continuous or 9,000 Ib-ft intermittent. D STANDARD WHEEL CASTINGS AB C Mort.(J) Dimensions, Inches DE Mox, Min. Min. Max. Min* Bare T aperad Straight Max* Bore WR2 Lb k Ft! Weight Lb. Ship Net 8 3li 3 4 4 3 2* 2X 2V. *4 i i2 1.1 18 12 10 3*4 3*4 4'4 37* 2*4 4 i i 2 3 35 25 2*4 4V, 5V. 4*4 3*4 3*4 2 13 5*4 4`4 6 3*4 4*4 4V, i i 354 12 75 59 4*4 4*4 2V, 4`4 3*4 4`4 6V, 1*4 5*4 3V, CH-00046 5V, 6*4 4'4 4 16 6*4 19 8*4 5 5 5 5 5`4 7V, 35i 5 4*4 7*4 8 5*4 5*4 5*4 3V. 2V, GV, 7*4 3 3*4 2K 3*4 36 3*4 3*4 3 4% 70 120 102 185 160 23 1111 6 8*4 5% 8*4 9*4 4* 4 5 210 315 290 30 14 % n 12*4 ion 10*4 10*4 S`4 5 7 380 1,180 1,100 Standard castings have hub dimensions of C Max., D Max., and E Min. Re let to C-H (or whoels fiom special castings. ECHHICAl I NFORMATION USLICATION t i)5/506 HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic V-C RECTIFIER PANEL, APPROXIMATE DIMENSIONS Broke Size Dimensions, Inches Mounting Height Width Depth Weights, Lb. Ship, Net 8 10" Floor 24 16V, 1114 95 85 13" 16" 1 9" Floor 23" 16V, 1114 no Panel (Not Shown) 30" Separate Resistance (Mot Shawn) Wall Floor 30V,, 6 17V, UVu ISO 12 28 160 22 3) 1 supplied for Inleunl lien I duly, 2 supplied for continuous duly. 'EDAL AND MASTER STATION DATA, 506 BRAKES Brake . Xife () ` O-c Torque, Lb-Ft Park (Spring Set) D-c with eojl protect!ve panel Service (hydraulically applied) Pedal Data far Service Torque Force 0 or 2 Brakes), Pounds Stroke, Inches 1 Brake 2 Brakes a- .75 IQ" 150 13" 400 100 200 550 1.. 100 200 .550 100 200 550 20 IV, 3V. 30 2 4M, 60 2V, 4V, 16" 750 1,000 1,000 1,000 60 3V. T/u.' 19" 1,500 2,000 2,000 2,000 80 6 12 Master Station Smal I Small Small Large, IS" Lever Large, 24" Lever tYDRAULIC SCHEMATICS, 506 BRAKES SINGLE MASTER, 8"-13" BRAKES TO BRAKE(S) _________ i RES. --i TO BRAKE (S) __________ i RES. TWO MASTERS, 8 -13" BRAKES SINGLE MASTER, IR"-|9" lAKES TO 8RAKE(S) MASTER TO BRAKE(S) SHUTTLE TEE- TWO MASTERS. 16"-19" BRAKES CH-000485 A|| necessary fitting* lujiplied. Each brake j| equipped with 1001 of '4"* copper tubing. Each master station it equipped with 2-30" flexible hotel, Eaih inKoltafion >* provided wirh 1 gal, fire-resistanl brake fluid (C-H *637-796 or equal to Nyvoc No, 20), When 2 4--V 1 9,-15/64 HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic APPROXIMATE DIMENSIONS, 506 RESERVOIR AND MASTER STATIONS 7 T ECHN1CAL ' I flFORMATIQN P (JILICATION 505/506 master station 8", 10" 8. 13" BRAKES FLOOR MTG. ONLY RESERVOIR MUST BE AT HIGHEST POINT IN SYSTEM CH-000486 EOlNiqU . I NFORMATION P UJIICATION C 15/506 HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic PPROXIMATE DIMENSIONS, 505/506 BRAKES. intensions with * apply only to AISE standards established for indicated motors. :R1ES BRAKES FOR 400 AND 600 FRAME MOTORS r MOTOR DATA tilr Aril A fzm: " L *1 KiUJHF RPM *.* (',1*1 ISO lb ita| Ha i ',b fOfefl ws m tp lad i<a `.PU1J* lb lOty] CD r \b |$J w. CM lb Utd ua Kilrd iii-m <C 29 n H lid n m in Ink JUiH (is-r.l ra (4 too fiW ra ua ra m WHEEL DIMENSIONS, (iMItll tOCATIOH OWCHdaHS, (Mtl'll 1 C* O* i- F- C' II CC K 1* < < u 1* 4,JC USD rra t' * V'i J. HI JJ5 M 114 IS 1. iiH U5J im3 w vs US in 1000 i.5 ir.iz . .1,14 ui J.ftM iSi U.u 4" Vi in 1ft 3.11 B.n US u 113 CUAftAHCE DIMENSIONS, N r AA AA* a- a S T II Y V X T 1 us UAJ 11$ J! UJI (J 0,5 J,a 1S. M3 in 1341 144 JS 141 kji L3 j J.n IU Ml 3. 0. L3.JS IT49 M3 J3 (* 1M Ul $J il 14.75 Ul Ji 1. JMi FJi WC ',b Uta 414 lb J5M VS id ssa US 13d us 1. i.ii 2.500 i.m vs DJI it "4hr 45hp wo Iff Mir Hhe| in u ISO HD X5 US 14 1J1 1.4 J.000 Liii 20.11 1,11 105 5-5 14 4.4 ua 11. S.U 14 $.4 in H. !U U4 (1. 21* 41 EJ5 UJS Ml ' (JS 2IJS 3ji 1.5 I0J0 11U 14 (45 \bi 14ho ns JCS 1,000 id lb 5Qta| HO 3ZS (50 (.1 in uso 3.1*5 iVfc 11.13 IZJ5 5,n (4 i.ot U n. l, Ji 1UI IMS 17. 1131 3ua 14 7J4 M* lUhpl ID u 2,000 (17 lb Jim as .ft id I.HD u S mi* D Ujo Z.QOO 1 hf lOOWi D uua 1,300 3.WS 1C20 VS * IV K ` USd ITS fi-U JUS 13,13 in LJ a<,i. U4 24.(3 m 9.13 t,n ZJJ1 IM 1U IdJO SJ 10.Ll HI 1.3 L13 I0J3 Lisa IfiJ L,b rami KM (II Lb isam ( uto i,m JUS 14 IJH ZJM M8 (iib J2] Mr MSta *5 *$L1 ? ItattDta 110 MIQ Z.K0 4.0W J.( tip (. IJS 3.13 $.000 (355 worn m IbTftta ]T| Slid uu H.25 *J5 Lift J.no c.m 5,8/5 5JJ0 JOL33 IVIX, 1330 WJ3 IJI lift 3HU M.I! IV ft lUfl IMS 1. is Ul UJ3 2CJS lift j.i i.s U41 14* 13 M3 1343 11 TT i WiM l).M LU UJS :us U.L1 UJB VM 1. iJfl KL 30 *,iu Sea** JLO Lb HI 1,110 9,000 IUS i 5.100 t,0 UP '.buata MO IL.5W 9,000 H.ZS ib ram m t.iaa i,<xu ' $.130 Ul5 J.HM OS IVL 10.4 I0JS Lift 1U ID3I uz in if Iwii* 7 y.Itts requwd *ilh (21 fr** twlau Mfd ll Hid condidou. ERIE5 BRAKES FOR 800 FRAME MOTORS llil- MOTOR DATA Vt whfil A Fna Mo. Duhr h4 RefeJHP JbiW (PM fill'd Tn''*, nbTii Vir r4la T U1A L hr S-tv WJ t k.p5i |0bp (ft Hie Lb J'ita HQ 29 ft a V,Jtf Ljt'hp (ft IK atC (b lOHp IQQ H 10 *rhf l)bp (70 id HI lb nirp 721 109 *-,lir It), no (04 713 Lb ZOftp (50 1(( . 13 101 191, n HO Ibr Wi 7/4 V* (5hj 1 ICO 16 lai Lb Uh| 47S 504 "Ju Mho 440 1,0/4 no Ur TOha sn 115 10 "thr 115m m (.CM 117 i hr loom m 1.110 t1 t(Ar2Q0ta 4M 2.(20 ! 1 hr IVim <0 I./I4 'W lthD 400 1.U0 IK L h TOON) 4 l.M '.ru JJSta no 4,1*0 to 111 Thr now 410 1.200 e.4i. Itul^d (Uhl 100 IS l (3 m ID 700 ID ssa X5 Stt 3(4 uon do 2,000 1,100 2.000 E,J 1,000 7.(00 4.003 1W 9.000 (.000 VhCCl QWtNIIdHS. Instil Location dimensions, JUchrt} CLEARANCE DIMENSIONS, 1 C O* e* f* c* u 11.73 3> *. 2.31 1.150 as *P IS. CC N ii.i -7. 1- X- L J4 H f AA AA Q ll ` T U V W 1 Y i US L24 Ul 1.(9 .(9 us L1CI U,1 Jl .74 Ul 1C.II (.S (4 TJI LUG 743 L U5 1. 4. Lit u a*s 11 v; /. Hi 1.24 Ml 1.0 ft ITS LU3 US Jl JS 147 (fi.El C.S (.5 /.a im 7.13 3. l.ft 3. US 1.11 u Dfl V". 17.12 vn 1.18 1. MS !.M m il 4. IMS 17.19 l.ll JS Ul ll.ft 1. Ul Ml LJ. us SJ1 US i Ul IJI 2.000 139? '.'X Li.a vn 1.31 1.25 5. 1.IJ 1.H 41 1. IS./f IT.H l.ll JS UH IIJC 1. Ml M3 17* 7.D Ml US 1.M (JS 1.9a LOOO n vx 70.11 ^1 1,11 IJI 5.1 44 S.S Jl US 11. 7L 1. Jl (.ft 21,1$ i.n 14 10.31 11JI 14 MS US 1. 4J0 7. 7.S0D Cs -1*'4 20.11 %-l 111 uj.n S.S J1 175 11. 21. 1. 41 (JS 7IJ1 iji IS [Q.a uji 1.1 L73 CJ5 4.5 S.15 Ml 3.000 Iris U, ir 21.0 ll-K 12*13 II.M 5.(] S,fl (4 1. TVS 72*73 71 US L l.ft n. IMS LL l/.M 2Ml 14 7,75 Ift U 7. Ul USD His V/, S.lfl ivw I1.ZS 13 JS <JS IJ Ml \n US 71.(1 a. in i.n 10.(1 27.(1 LIS IM Mil 2(4 Lajl 1ft l.ft 1 74 i.ii 1.(11 fin X'\ 7M3 LVl" 13.74 IU1 US E.S Ml i.tt J.ft ZS.C3 a, 1.31 Ml I0J] 2741 114 114 ii,a SJ tt.D US lift 5. I. Ml 4.230 Ms U'i KH IV, 15.U [US ui 1. 14 Ul 11.74 D.U L.S U3 11.7! 11.75 II.Ll II.7S 17J id,a ii.n IDJ 11.23 V 1.74 742 Lift 1.(70 IX*'; D.74 l*a'ft ISW 11.11 i. 1. 9.4 1,31 II.ft H.U - I.S 1.11 lift 11.74 LIU IMS ii.n M.l LUI ,I(L4 L4.74 G, 7.V 1000 Oft * - 20JS I. t, 74 II. 144 LL tD.ft - 1, IJI 17. US 74.23 77Jl H.S (IJI (JZ laji CH-000487 HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic T tCHHtCAl , I NFORMATION P UIUCAHON 505/50* 50S. 8-23" SEE PAGE 4 FOR DIMENSIONS TYPICAL BRAKE AND STANOARD MOUNTING FOR MILL MOTOR (SHIM BRAKE AS REQUIRED) CH-000488 -CUTLBR-HAMMEF ECHNICM ' , I NFORMATtON ___________________ P UBUCAHON f p5/506 HEAVY DUTY MAGNETIC BRAtCES 505 Electro-Mechanical 506 Electro-Hydraulic PPROXIMATE DIMENSIONS, EMA 3 ENCLOSED 9/15/46 Brake Size L 2 M DIMENSIONS, Inches QR 2 SOS SOS S 4-M T a" 2V, US 5 7 7% 13 3% 14% 16% 16% 24%, 16 % 10" 3% 4 5V, ay. 9% 14% 4 16% 18% 18%. 27% 17% ' % 13" 4% 5% 6% 9% 11 17 5% 19% 21% 21% . 32% 20% % n16" 5% 7% 12% 13% 19% 6% 23% 25% 23% '37% 22% % ( 19" ' 6V, 9% 9% 13% 15% 23 6 26% 28% 27% 43% 26% % 23" 8 11% 10% 1S% 19% 26% 9% 31% 31% 51 ' 3'0% % APPROXIMATE DIMENSIONS, NEttA 4-5 ENCLOSED : Urefcc SUe FH DIMENSIONS, Inch.. K MN R. 505 50S CH-000489 S 8" 2% 1% 1% 17% 8% 1 28% % 18 9 27 5% 13% 17% 19% B`%, l'% 10" 3% 1% 1% 19% 10% 1 31% % 19% 10% 30 6%. 14% 19% 21% 10%, l`% 13" 4% 1% 1% 22% 12% 1 36% % 22% 12% 34% 1% 17% 23% 25% 11%, l`% IS" 5% 3 2 24% 14% 1% 41% i% 24V, 14% 39% a% 19% 27% 29% 14%, 2% 19" 6% 3 2 28% 16'.;' 1% 48% i% 29 17 46 9% 22% 30% 32% 15%, 2% 23" 8 3 2 33 20% 1% 56% i% 33 20% 53% 11%, 24% 35% - 18% 2% . HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical ' 506 Electro-Hydraulic T KHNICXl J I NFORMATION P UBltCATtON 505/50* ENGINEERED APPLICATIONS Many brake applications are such that a brake should be selected on considerations involving factors other than motor Lorque. The purpose of this section is to present the factors which enter into such a selection, and to provide the guide lines which should be used. slop. The absorption figure is about 2,100 ft-lb per square inch of wheel surface area ((or a wheel initially at a 104 F. ambient, or 40 C., and finally at 400 F.). The wheel must cool to ambient temperature before the next "long stop". FUNDAMENTAL A brake converts kinetic energy into heat. During the stopping cycle, this heat Is absorbed almost entirely by the brake wheel alone. It can be approximated that the linings absorb little heat, and that heat dissipated during the slop is negligible. The heat must then be dissipated during the time the wheel is rotating. ' ' By comparing dissipation rales and absorption capacity vs. the non-stopping parts of the cycle, it can be seen that the time between "long" stops varies from 7x slopping time (wheel spinning rapidly) to 14 x stopping lime (wheel spinning slowly or brake set). Thus the order of cycle time can be on the order of minutes rather than hours. WHEEL HEAT CAPACITY DATA WHEELS AND LININGS For long-|irne successful use, C-H brakes are rated and selected to limit the surface temperature of the wheel (and therefore lining temperature) to about 400 F. Linings contain organic binders which begin to deteriorate at about 450 F., and the asbestos itself begins to loose its 14% water of crystallization at about 500 F. Linings which are run at higher temper atures simply wear away more quickly and require more frequent adjustment and replacement. Wheel (Brake) Size 8" 10" 13" 16" 19" 23" 30" Wheat Surface Area ,. Sq. In. 81.5 117 236 338 521 815 1,350 At Peripheral Velocity of 2,500 Feel Per Minute: Heat RPM Disstpoti on, ' Ft*Lb/Mlnul 1190 24,500 1040 35,400 735 70,500 595 101,500 500 . 156,500 415 244,000 318 354,000 Heal Absorption Capacity During One Long Stap Ft-Lb 163,000 236,000 470,000 678,000 1,040,000 1,625,000 2,360,000 ' Heat Dissipation Wheels rotating at a peripheral velocity of 2,500 fpm dissipate energy (heat) at about 300 ft-lb per minute per square inch of wheel surface area. This decreases linearly by about 50% when velocity drops below 1,000 fpm. Factors which increase or decrease air circulation around' the wheel will alter the rate(s) accordingly. Most applications are such that the dissipation rate of the wheel is the important con sideration. In these applications, small amounts of heat are absorbed and dissipated frequently, and the wheel ' neither cools to ambient nor exceeds per missible temperatures. Absorption capacity In many applications the heat-absorbing capacity of the wheel becomes dominant. For example: to in frequently stop a high energy system in a short time (consider a centrifuge) requires- the absorption of a large block of energy during "one long stop". It is approximated that no heat is dissipated during the* 1 For making calculations, data from previous pages can be found as follows: lorque ratings............ page 4 release/set times .... page 5 - COILS From an application standpoint, series brakes have a limited coil selection range. Since the coil is in the motor circuit, the power to the coil is a function of the entire motor armature circuit. In addition, industry standards require series brakes to release 'on 40% and to slay released down to 10% of full load motor current. It is because of the coil design param eters plus industry standards that series brakes have the aforementioned limitations. Shunt brakes, however, have a relatively- wide range of coil selection. Where intermittent ratings ar< required on an otherwise eonlinous applications, o where release times must be shortened, a coil pro lective panel or an A-c rectifier panel can be employed, See page 3. CH-000490 CUTLER-HAMMEI 1 KMM1CAI ' I nfoumahoh _P UBUCATION ( 1)5/506 HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic . ALCULATIONS II applications should have brake sizing verified by jnsi dering time and distance to stop versus energy i the system at the time the brake is set. The eneralized formula is; t - t, + tj - ta 120 KE 2irTNb (1) here t = time, seconds, to stop the system from the time the coll circuit is de-energized. tB = time, seconds, for the brake to set tj = deceleration time, seconds KE = total kinetic energy, ft-lb, in the . system at the time the brake sets T = retarding torque, total available, lb-ft, consists of brake torque, friction, dynamic braking, overhauling torque, etc, Nb = rpm of the brake wheel. Usually con sidered base speed n most calculations, the retarding torque "T" is aken to be that of the brake LESS the overhauling orque. Friction and dynamic braking are usually >f~ Vd, This indicates a brake on the safe side. If )L ,<ate stopping/spotting is required, these (actors should be included. From equation (L), it-Is simple : calculate drift, ^topping distance, etc. To further simplify calculations, manufacturers of rotating machinery and other, elements usually list a term such as "WR3" or "WK3'' for their products. This term consists of the weight (in pounds) of the moving part(s) multiplied by the radius of gyration (in feet) squared. Equation (1) is modified to: Nb ( rotating WR3 + 2 linear WR3) (2) 308T t = ta Nb (sum of rotating WR3 + sum of "linear WR3'1) + 308T Two other equations are useful. Equation (3) converts the WR3' of an element rotating ' at other than base speed to the base speed; equivalent WR3 = (WR3),, (3) Equation (4) converts linear kinetic energy bo an equivalent system rotating at base speed; equivalent WR3 00 where: w = weight, lb, of an element with linear motion. ' (WR3)e = natural factor of element rotating at other than base speed, Ib-ft3. Ne = rpm of mass rotating at other than base speed. - V = linear velocity, fpm. CH-000491 HEAVY DUTY MAGNETIC BRAKES 505 Electro-Mechanical 506 Electro-Hydraulic SELECTOR CHART FOR DETERMINING MOTOR TORQUE T KHNICAl I ^FORMATION P UBUCATION 505/501 1000 500 400 *10 9 8 7 6 -5 4 300 200 o ui 2 LU in cc o X 100 1x ..9 = 8 .7 .6 50 40 .4 30 .3 20 15 -F 10 20,000 200 10, 000 100 5000 4000 3 00.0 2000. 50 40 =j 30 o CL . 20 1000 O' 10 cC o 500 . 400 - ~3'TfO"~` 200 - 5 4 3 100 - 50 .5 40 .4 30 .3 .20 2 T :. 5252 X HP R.P.M. -T- 300 400 500 600 xa. cc 700 800 900 1000 1500 2000 EXAMPLE: GIVEN: 50 HP., 900 RPM. MOTOR FIND REQ'D. BRAKE SIZE T = 300 POUND FEET USE 13" BUL. 505 BRAKE NOTE: ALWAYS USE CORRESPONDING SIDES OF H.P. AND "T" SCALES TO ARRIVE AT CORRECT SOLUTION. ' . qu Q00492 CUTLBR^HAM MEft