SERIES NEW PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES

Transcription

1 SERIES NEW PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 1

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3 SERIES 1 2 pag. pag. 5 Introduction Features 3 pag. pag. Versions Range and designation 5 pag. 9 pag. 10 Executions Method of selection pag. 1 Manufacturing program Accessories pag. 35 PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 3

4 1 INTRODUCTION The Motovario PBH series of gearboxes for heavy industries, is a range of parallel and bevel helical gearboxes up to reduction stages, built as standard and designed specifically to ensure maximum reliability in the most arduous conditions. PBH series reducers present the classic features of parallel and bevel helical gear reducers such as robustness, efficiency, compactness and reliability, combined with universality, ease of application and low maintenance which are a result of a modern design concept, typical of quality reducers. MAIN FEATURES OF THE PBH SERIES: - Universal mounting: suitable for horizontal or vertical mounting - Cast iron casing, rigid and with great lubricant capacity to enhance the thermal capacity - Casing split in two parts, with reduced and direct maintenance - Standard solid low speed shaft, with standard and double extension - Possibility of double extended high speed shaft - Possibility of fitting large size motors - IEC standard motor, with the possibility of coupling NEMA motors - High endurance of loads on both low and high speed shaft end - High performances, reliable and tested.

5 2 FEATURES SIZES AND TRAIN OF GEARS AVAILABLE SIZES: 10, 200, 225, 250, 20, 320, 355 Train of gears: 1, 2, 3 and stages for parallel helical reducers 2, 3 and stages for bevel helical reducers. MATERIALS (CASING, GEARS AND SHAFTS) Casing: 200 UNI ISO 15 cast iron Gears and pinions: 1CrMo, 15NiCr13, 1CrNiMo hardened and casehardened steel Low speed shafts: 2CrMo hardened steel. EXTERNAL PAINTING Electrostatically paint with epoxy polyester powder, minimum dry thickness 0 microns. Blue color RAL 5010 LUBRICANT OIL AND LUBRICATION Motovario PBH gear reducers have been designed to be lubricated by oil splash. Unless otherwise speficied, PBH gear reducers are supplied without oil and it is responsibility of the Customer to fill them to the specified level with mineral oil. In order to increase the oil change interval, the ambient temperature range, or to reduce the oil temperature, it is always recommended to use synthetic oil with polyglycol basis or with polyalphaolefines basis. Suggested mineral oils: ENI Blasia, ESSO Spartan EP, MOBIL Mobilgear, SHELL Omala, Kluberoil GEM1, TOTAL Carter EP. Suggested synthetic oils with polyglycol basis: KLÜBER Klübersynth GH, ENI Blasia S, MOBIL Glygoyle, SHELL Tivela S; or with polyalphaolefines basis: SHELL Omala HD, AGIP Blasia SX, KLÜBER Klübersynth EG, CASTROL Tribol 1510, ELF Reductelf SYNTHESE, ESSO Spartan SEP, KLÜBER Klübersynth EG, MOBIL SHC Molykote. PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 5

6 3 VERSIONS Parallel Helical Bell coupling input without motor Bevel Helical Bell coupling input without motor Parallel Helical Bell coupling input with motor Bevel Helical Bell coupling input with motor Parallel Helical Male input shaft Bevel Helical Male input shaft

7 RANGE AND DESIGNATION RANGE Size Output nominal torque M N2 [Nm] Transmission ratio Max Min Max PH ,2 2 PH ,22 59 PH ,2 PH ,23 10 PH ,2 0 PH ,25 10 PH ,2 0 Size Output nominal torque M N2 [Nm] Transmission ratio Max Min Max BH ,1 2 BH ,1 0 BH ,20 9 BH ,31 10 BH ,1 BH ,0 10 BH ,0 5 PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES

8 DESIGNATION Series PBH P 1H 10 AU I d1 x l1 HC DxL 1,22 B3 B 2H 200 AZ P d x P HL. B 3H 225 DU HS. B H 250 DZ CS. B 20 LR SS 2,3 V5 320 LL CD V 355 SR SD SL DR DL Type P: Parallel helical reducer B: Bevel helical reducer Mounting position Train of gears Transmission ratio Size Execution Output dimensions Input I: Male input shaft P: Bell coupling input Output HC: Hollow low speed shaft with keyway HL: Hollow low speed shaft with shrink disk HS: Splined hollow low speed shaft CS: Cylindrical solid low speed shaft SS: Splined solid low speed shaft CD: Cylindrical double extended solid low speed shaft SD: Splined double extended solid low speed shaft Input dimensions

9 5 EXECUTIONS PARALLEL HELICAL BEVEL HELICAL MOUNTING POSITIONS - PARALLEL HELICAL MOUNTING POSITIONS - BEVEL HELICAL PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 9

10 METHOD OF SELECTION LEGEND i N = nominal transmission ratio i= effective transmission ratio n 1 = input speed [rpm] n 2 = output speed [rpm] fs= service factor required by the application fa= service factor according to classification of load and daily working hours fb= service factor according to number of starts per hour fc= service factor according to motor installed type Pth= nominal thermal power (kw) ta= thermal factor according to ambient temperature and intermittent duty tb= thermal factor according, depending on cooling fan Tamb= ambient temperature [ C] P N1 = nominal power at high speed shaft[kw] M N2 = nominal output torque at low speed shaft [Nm] P 1 = input power [kw] M 2 = output torque at low speed shaft [Nm] M 2max = overload torque at low speed shaft [Nm] 10

11 METHOD OF SELECTION 1) Calculate the required transmission ratio i = n 1 / n 2 2) Calculate the available torque at low speed shaft M 2 = P 1 * 9550 * / n 2 [Nm] 3) Define the minimum service factor fs required by the application based on: Classification of load (uniform, moderate, heavy) Daily working hours [h/d] Number of starts / hour [starts / hour] Type of installed motor See tables 1, 2,3 e. ) Define the minimum reducer performance M N2 = M₂ * fs [Nm] 5) Select the reducer size, train of gears and transmission ratio based on MN₂, n₂ and n1 Verifications a) Verify the thermal power. See tables 5, and. b) When there are overloads due to starting on full power, breaking, high inertia loads, check the overload torque (M₂max) M₂max <= 1, * M N2 Note: overloads are instantaneous peaks (maximum acceptable duration 10 seconds) c) For radial and / or axial loads on high and low speed shaft, please contact us. d) Contact Motovario technical service for: n1> 1000 rpm for P1H and B2H n1> 150 rpm P2H, P3H and B3H n1> 2000 rpm for PH and BH Service factor The minimum service factor required by the application is defined as fs = fa * fb * fc Table 1: classification of load PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 11

12 METHOD OF SELECTION TABLE N. 1 CLASSIFICATION OF LOADS Applications Type of load CONVEYORS (for heavy and not uniform loads) Scraper or scoop Belt Buckets Elevators Rollers For furnaces Reciprocating Jerking Screws MACHINE TOOLS Punching presses Shears Planes Main movements Ancillary Movements (feeders, advances, etc.) Uniform PUMPS Centrífugal Rotating and geared (for heavy and not uniform loads) Uniform (variable density) Reciprocating with free unloading Uniform Reciprocating with multiple cylinders double-acting Reciprocating with single cylinder LIFTS Types similar to transporters Goods lifts-freight Passenger PAPER INDUSTRIES Mixers (agitation) Conveyors Cylinders Felt tighteners Calenders Presses Winders Applications Type of load FOOD INDUSTRIES Mixers Kneading machines Beaters Meat choppers COMPRESSORS Centrifugal Uniform Lobulated Reciprocating with multiple cylinders with suitable flywheel Reciprocating with single cylinder RUBBER INDUSTRIES Mixers Calenders for rubber Rolling mills Machinery for tyres SIEVES Rotary (sand or stone) Reciprocating AGITATORS Semi-liquid Variable density MACHINE FOR THE TEXTILE INDUSTRY Washing mills Calenders Cards Machines for dyeing Looms Pickers Spinning machines DREDGERS Cable drum Conveyors Pumps Stackers Goods lifts Sieves Buckets 12

13 METHOD OF SELECTION TABLE N. 1 CLASSIFICATION OF LOADS Applications Type of load FANS (uniform speed and balanced) Centrífugal Uniform Ligth, with small diameter Uniform For cooling towers For forced air flow For mines CRANES Derrick Uniform Slewing Uniform Transfer movement Drum movement METAL INDUSTRIES Drawing benches Stamping presses Cutting machines Small rolling machines MIXERS Constant density Uniform Irregular density Concrete Applications Type of load TRANSMISSIONS For industrial equipment machines Subgroup movement Secondary transmissions Uniform CRUSHERS Mineral Stone MILLS (rotary type) Ball Hammer Ring roll For cement PACKING MACHINES Uniform WASHING MACHINES AND PUMPS PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 13

14 METHOD OF SELECTION TABLE N. 2 fa SERVICE FACTOR ACCORDING TO CLASSIFICATION OF LOAD AND DAILY WORKING HOURS 2 h/d h/d h/d 1 h/d 2 h/d Uniform 0,0 0,90 1,00 1,25 1,35 1,00 1,15 1,25 1,50 1,5 1,25 1,50 1,5 2,00 2,25 TABLE N. 3 fb SERVICE FACTOR ACCORDING TO NUMBER OF STARTS / HOUR < starts/h..32 starts /h 32.. starts /h..12 starts /h Uniform 1,00 1, ,50 1,00 1,15 1,25 1,35 1,00 1,05 1,15 1,25 TABLE N. fc SERVICE FACTOR ACCORDING TO MOTOR INSTALLED TYPE Electric motor 1,00 Explosion motor multiple cylinders 1,15 Explosion motor single cylinder 1,25 1

15 .1 THERMAL POWER The nominal thermal power (Pth), table 5, is the power that can be applied to reducer high speed shaft without exceeding approximately 95 C of oil temperature, in the following reference conditions: Mounting position B3 Continuous operation Input speed 1500 rpm Ambient temperature 20 C Sea level altitude Air speed near the gear reducer 1 m/s Absence of external radial and / or axial loads Except for continuous operating times below 2 hours and successive pauses capable of bringing the gear reducer back to ambient temperature (1-2 hours), for each application is advisable to verify the gear reducer s thermal limit according to the following formula: P₁ < Pth * ta * tb Nominal thermal power Pth [kw] Reducer size Type Size P1H P2H P3H PH B2H B3H BH PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 15

16 .1 THERMAL POWER TABLE N. THERMAL FACTOR ta, ACCORDING TO AMBIENT TEMPERATURE AND INTERMITTENT DUTY Intermittent duty [%] T_amb 100% 0% 0% 0% 20% 10 C 1,15 1,25 1,35 1, C 1 1,05 1,15 1,35 1,5 30 C 0,9 1,00 1,05 1,25 1,50 0 C 0,5 0, 0,9 1 1,35 50 C 0, 0,3 0, 0, 1 TABLE N. THERMAL FACTOR tb, DEPENDING ON COOLING FAN All sizes - Parallel helical Train of gears Input speed [rpm] tb P1H P2H P3H PH n1= ,5 n1= ,12 All sizes - Bevel helical Train of gears Input speed [rpm] tb B2H B3H BH n1= ,5 n1= ,35 1

17 MANUFACTURING PROGRAM Performances PARALLEL HELICAL REDUCERS - P1H (SINGLE STAGE) P1H - n 1 = 1500 min -1 Gear reducer size i n N2 i N * , , 93 1, 33 1, ,2 00 2,5 53 2, 3, , , , M N2 P N1 1,2 1,22 1,2 1,23 1,2 1,25 1, ,1 1,3 1,3 1,1 1,3 1, 1, ,59 1,3 1,1 1,59 1,2 1, 1, , 1, 1,1 1, 1,3 1, 1, ,0 1,9 2,0 2,0 1,9 2 1, ,1 2,23 2,1 2,1 2,29 2,2 2, ,55 2,55 2, 2,52 2,55 2,5 2, , 2, 2, 2, 2, 2, 2, ,11 3,11 3,0 3,1 3,11 3,15 3, ,3 3,5 3,5 3,5 3, 3,55 3, ,9,12 3,9 3,9, ,5,5,5,5,1,5, ,9 5,12 5,13 5,13 5,0 5, ,3 5,53 5,53 5,53 5, 5, 5, Nm kw * For this size please contact Technical Support PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 1

18 PARALLEL HELICAL REDUCERS - P2H (DOUBLE STAGE) Gear reducer size i M N2 P N1 Nm kw n N2 i N * 355 5,2 5,1 5, 5, 5,52 5, 5, 2 5, ,09,09,11,3,21,3,29 23, ,12,01,9,1,22,1,1 211, ,,0,92,9,02, ,5,5 9,09 9, 9 9, , 9,3 9, 9, 9, 10 10,0 P2H - n 1 = 1500 min , , , ,2 11,3 11, 11,0 11,3 11,2 11, ,0 13,0 12, 12, 12, 12,5 12, ,2 13,5 1,1 13,9 13, 1 1, ,9 15,2 15,1 15,1 15,3 1 15, , 1,5 1, 1,0 1, 1 1, ,9 20,1 19,2 19,2 20, , ,1 22,0 22,3 22,2 21, 22, 22, ,32 25,01 25,3 2,9 2,9 25 2, ,3 2,02 2,3 2, 2,93 2 2, * For this size please contact Technical Support 1

19 PARALLEL HELICAL REDUCERS - P3H (TRIPLE STAGE) Gear reducer size i M N2 P N1 Nm kw n N2 i N * 355 2,0 25,0 2, 2, 2, 25 25, ,3 2,1 2,9 2,2 2, , ,5 30,5 31,1 30,2 30,3 31,5 32,1 31, ,3 3,2 35,9 3,1 35,1 35,5 3,5 2 35, ,0 39, 3,9 3, 39,5 0 0, ,2,1,,1 3,0 5, , 9,2,1 50,1,3 50 9,5 P3H - n 1 = 1500 min , 5,3 5,1 5,5 5,9 5 5, , 2, 1,2 3, 1,9 3 3, ,,2 0, 1,1,3 1 0, , 5, 5,,2 5, 0, ,2,,1,1, 90, ,2 9,1 9, 100 9, , * For this size please contact Technical Support PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 19

20 PARALLEL HELICAL REDUCERS - PH (FOUR STAGE) Gear reducer size i M N2 P N1 Nm kw n N2 i N * * , , , PH - n 1 = 1500 min -1, 22, , 20, 315, , 00 3,3 50 3, , 50 2, , ,9, ,, , 9, ,, ,2, 9, , 5, ,5,, ,1 3, 5,1 9, , ,2,3 5,5, * For this size please contact Technical Support

21 Dimensional drawings P1H (SINGLE STAGE) DIMENSIONS (mm) L D Nominal ratio i n i 3,15 i>3,15 Size [kg] a a 1 a 2 b b 2 b 3 c e f h i i 2 m o 1 q s s 2 D L d 1 l 1 d 1 l Approximate weights are shown in the tables. We reserve the rights to modify any dimensions, without changing the type number of reducers. For missing values please contact Technical Support. PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 21

22 P2H (DOUBLE STAGE) DIMENSIONS (mm) D L Nominal ratio i n i < 1 i 1 Size [kg] a a 1 a 2 a 3 b b 2 b 3 c e f h i i 2 m o 1 q s s 2 D L d 1 l 1 d 1 l Approximate weights are shown in the tables. We reserve the rights to modify any dimensions, without changing the type number of reducers. For missing values please contact Technical Support. 22

23 P3H (TRIPLE STAGE) DIMENSIONS (mm) D L Size [kg] a a 1 a 2 a 3 b b 2 b 3 c e f h i i 2 m o 1 q s s 2 D L d 1 l Approximate weights are shown in the tables. We reserve the rights to modify any dimensions, without changing the type number of reducers. For missing values please contact Technical Support. PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 23

24 PH (FOUR STAGE) DIMENSIONS (mm) D L Size [kg] a a 1 a 2 a 3 b b 2 b 3 c e f h h 1 h 2 i i 2 m o 1 q s s 2 D L d 1 l Approximate weights are shown in the tables. We reserve the rights to modify any dimensions, without changing the type number of reducers. For missing values please contact Technical Support. 2

25 BELL COUPLING INPUT P1H (SINGLE STAGE) DIMENSIONS (mm) P N holes holes M Size d max P N M f1 i2 s1 Nr. holes P2H (DOUBLE STAGE) DIMENSIONS (mm) Size d max P N M f1 i2 s1 Nr. holes P N holes holes M *00 *50 *550 *00 *50 *550 *00 *50 *550 *00 *50 * * With adaptation supplement PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 25

26 BELL COUPLING INPUT P3H (TRIPLE STAGE) DIMENSIONS (mm) P N holes holes M Size d max P N M f1 i2 s1 Nr. holes * * M12 M12 M *00 *50 * *00 *50 * * * With adaptation supplement PH (FOUR STAGE) DIMENSIONS (mm) P N holes holes M Size d max P N M f1 i2 s1 Nr. holes * M10 M M12 * With adaptation supplement 2

27 Performances BEVEL HELICAL REDUCERS - B2H (DOUBLE STAGE) Gear reducer size i M N2 P N1 Nm kw n N2 i N * 355* 5,1 5,1 5,2 5,31 5,1 5, 5, 2 5, ,5,5,3,53,5,3,3 23, ,5,53,5,3,5,1,1 211, ,19,,19,3, , 9,21 9,,1 9, , 9, 9,0 9,0 9, B2H - n 1 = 1500 min , , , , 10, 11,2 10, 11,1 11,2 11, ,2 12,9 12,2 12,2 12,5 12,5 12, ,1 1,1 1,1 1,1 13, ,5 1,1 1,1 15, 15, ,0 1, 1, 1,1 1, ,0 20,1 19,0 1, 19, ,0 22,0 22,0 21, 21, 22, 22, ,2 25,1 25,1 2,5 2, ,0 2,1 2,1 2, 2, * For this size please contact Technical Support PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 2

28 BEVEL HELICAL REDUCERS - B3H (TRIPLE STAGE) Gear reducer size i M N2 P N1 Nm kw n N2 i N * 355* 25,3 23,9 2,0 2,2 23, ,5 2,5 29, 29,2 2, , 31,9 31, 31, 32,2 31,5 31,5 31, ,5 3, 3,1 35, 3, 35,5 35,5 2 35, ,2 2,3 0,5 0,3 39, ,5,3,2,3, B3H - n 1 = 1500 min ,0,,5 50, 9, ,5 5,9 55, 53, 5, , 3,2 0,5 0,2 1, ,5 9,1 0,0 9,, ,, 9,,2, ,0 5,,2 5,2, , 9, , 9, , * For this size please contact Technical Support 2

29 BEVEL HELICAL REDUCERS - BH (FOUR STAGE) Gear reducer size i M N2 P N1 Nm kw n N2 i N * * , , , BH - n 1 = 1500 min -1,5 200, 22, , 20, 315, , 00 3,3 50 3, , 50 2, , , , ,, ,2, 9, ,2 5,, 9, ,5, 9, ,1 5,3,1 9, ,2,,,1 9, , 3, 5,1, 9, , ,1 3,2, 5,1 9, 15 * For this size please contact Technical Support 29

30 Dimensional drawings B2H (DOUBLE STAGE) DIMENSIONS (mm) D L L Size [kg] a a 1 a 2 b b 2 b 3 c e h h 1 i i 2 k m o 1 q s s 2 D L d 1 l Approximate weights are shown in the tables. We reserve the rights to modify any dimensions, without changing the type number of reducers. For missing values please contact Technical Support. 30

31 B3H (TRIPLE STAGE) DIMENSIONS (mm) D L L Size [kg] a a 1 a 2 a 3 b b 2 b 3 c e h h 1 i i 2 k m o 1 q s s 2 D L d 1 l Approximate weights are shown in the tables. We reserve the rights to modify any dimensions, without changing the type number of reducers. For missing values please contact Technical Support. PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 31

32 BH (FOUR STAGE) DIMENSIONS (mm) Size [kg] a a 1 a 2 a 3 b b 2 b 3 c e h h 1 i i 2 k m o 1 q s s 2 D L d 1 l Approximate weights are shown in the tables. We reserve the rights to modify any dimensions, without changing the type number of reducers. For missing values please contact Technical Support. 32

33 BELL COUPLING INPUT B2H (DOUBLE STAGE) DIMENSIONS (mm) holes holes M Size d max P N M f1 i2 i3 s1 Nr. holes 10 0 *00 * B3H (TRIPLE STAGE) DIMENSIONS (mm) * With adaptation supplement holes holes M P N P N Size d max P N M f1 i2 s1 Nr. holes * *00 50 *00 *00 *50 *50 * * With adaptation supplement M12 M12 PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 33

34 BH (FOUR STAGE) DIMENSIONS (mm) holes holes M P N Size d max P N M f1 i2 s1 Nr. holes * M10 M12 20 * M12 * With adaptation supplement 3

35 ACCESSORIES AND OPTIONS OUTPUT SHAFT VERSIONS Hollow low speed shaft with keyway Hollow low speed shaft with shrink disc Hollow low speed shaft with front holes Oversized and downsized hollow low speed shaft Stepped hollow low speed shaft Splined hollow low speed shaft Double integral low speed shaft Single/Double splined integral low speed shaft OIL AND LEVEL DEVICE Bearing lubrication pump Bearing lubrication motorpump Oil temperature probe PT100 Bearing temperature probe PT100 Bimetallic thermostat probe Pressure switch Electric signaling device of filter clogging Oil level switch with float Oil level column Infrared oil level probe COOLING AND HEATING DEVICE Cooling fan Cooling water with coil with or without thermostatic valve Independent cooling unit oil/water or oil/air Oil heater ACCESSORIES Backstop device Protection for hollow low speed shaft Protection for hollow low speed shaft with shrink disc Hollow low speed shaft washer Output flange Reaction bolt with spring disc Reaction arm Special anticorrosion painting Labyrinth seals with greaser on high and low speed shaft Fluoro rubber seals Vent plug with filter Magnetic plug NEMA adaptor input flange PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 35

36 Hollow low speed shaft HOLLOW LOW SPEED SHAFT WITH KEYWAY HOLLOW LOW SPEED SHAFT WITH SHRINK DISC Size D (H) D 1 (h) D 2 (h) D 3 (H/g) D D 5 (H/f) D D k 1 k 2 k 3 L 1 L 2 L 3 L L 5 L L L t u (H) x , , For missing values please contact Technical Support. 3

37 PARALLEL HELICAL AND BEVEL HELICAL GEARBOXES 3

38 PBH / 201 / REV.0