Bengt Olovssons Mekaniska AB.

Transcription

1 lastic Coupling Bengt Olovssons Mekaniska AB

2 STANDARD COUPLING A and C BRAKWHL COUPLING PF PAG. 3 PAG. STANDARD COUPLING FOR TAPR BUSH TB FLYWHL COUPLING B PAG. 1 PAG. 9 SPACR COUPLING A and C DISC COUPLING DF PAG. 7 PAG. SPACR COUPLING DL PAG.

3 SAMIFLX LASTIC COUPLING The new SAMIFLX elastic coupling is the result of the experience and development of the last twenty seven years of involvement in all industrial sectors. The new SAMIFLX couplings are characterized by: 1. The option of attaching the ring to the elastic insert to prevent it moving axially. 2. The option of working vertically, using the standard retaining ring and the new design of elastic insert. 3. xpansion of the range of polyurethane elastic inserts, colour coded according to characteristic and performance. We would highlight the high performance elastic insert, with which we have increased the torque rating by 4%. 4. Limited end float coupling for all sleeve bearing motor applications. One of the major advantages of this coupling is that the standard hub can be easily modified for this requirement. 5. Increase of the performance, with the incorporation of the new models A45, A55 and A.. xpansion of the range of materials used in the standard design, incorporating high resistance aluminium alloy, stainless steel, high performance polyurethane, shock-resistant polyamide and carbon fibre composites. DSCRIPTION There are only four parts to SAMIFLX couplings. The two identical hubs (1) and (2) are made from high-strength cast iron, ductile iron, cast steel or aluminium alloy, each with eight teeth, (except for the A and A, which have six and four respectively). The elastic insert (3), which is made from a special polyurethane elastomer, fits between the hubs. The outer retaining ring (4) is made of steel or polyamide, with interior pins for adjusting this ring on the elastic insert. The ring also has two threaded holes, symmetrical to each other, through which two set screws can be fitted. The set screws are aligned to a mating holes in the elastic insert and once secured ensures that the ring can not move during operation (see. fig. 3). ASSMBLY AND DISASSMBLY After machining the bores, the hubs (1) and (2) are fitted onto the shafts. Note, the retaining ring should be located over the shaft prior to setting the DBS (Distance Between Shaft nds) and aligning. The teeth of the hubs are positioned facing each other, to the correct gap (). The elastic insert (3) can then be installed in the slots formed by the parallel teeth. When the insert is in position, slide the ring (4) onto the polyurethane insert, tapping gently into place with soft-headed hammer, until the ring s inner pin falls into place in center hole of insert. Centrifugal force will expand the elastic insert to fix it tightly to the inside of the ring. If the alignment cannot be kept within the admissible tolerance, the ring can be secured using locking set screws (fig. 3). To disassemble, remove the ring. The insert can then be quickly and easily removed and replaced. No special tools, screws, bolts or other fasteners are needed. SAMIFLX MANS SAVING IN MANPOWR AND DOWNTIM, ASY OF INSTALLATION, CONOMY AND LONG, TROUBL-FR SRVIC. Fig. 1. Fig. 2. FATURS AND BNFITS Assembly and disassembly of the elastic insert without having to displace the motor or the unit being driven. This advantage permits the inspection of the insert at any time without a lengthy shut-down. Simply displace (move to one side) the ring, remove the insert, inspect and if necessary replace with a new one. All this takes a few minutes. The two hubs works independently as the coupling transmits torque. This concept allows free-wheeling of the motor or driving unit in the system by simply moving the ring and removing the insert. This is specially helpful when the driving unit is a combustion engine and it becomes necessary to repair or test the engine without any load. As the hubs are independent of each other, if the insert ruptures or breaks, there is no metal to metal contact creating any spark thus enhancing the explosion proof properties of the coupling. The polyurethane insert is a key part of the coupling and is made of a very special elastomer compound. Its estimated average lifetime is 25, hours work under normal conditions. The coupling is easily aligned without expensive tools or measuring devices (see our installation instructions). Fig. 3. 3

4 MISALIGNMNT ADMISSABL Assembly dimensions () and tolerances in mm Type A A A1 A2 A3 A4 A45 A5 A55 A A7 A A9 A1 A Assembly 1,5 1,5 1, Axial X +,3 +,3 +,5 +,5 +,7 +, +1, +1, +1, +1, +1, +1,5 +1, Radial Y,1,1,1,1,15,2,2,2,2,2,3,3,3,4,4 Angular Z,1,1,2,2,3,4,4,5,5,,9 1,1 1,3 1,7 1,7 COUPLING SLCTION FACTOR F1 DRIVN MACHIN / XAMPLS LCTRIC MOTOR DISL AND PTROL NGINS 4 - CYLINDRS 1-3 CYLINDRS Uniform operation, with small masses to be accelerated. Hydraulic and centrifugal pumps, light generators transmissions ventilators, transfer equipment. 1,-1,2 1,5 2, Uniform operation, with medium masses to be accelerated. Sheet metal bending machines, wood working machines, mills, textiles machines, mixers. 1,5 1, With medium masses to be accelerated and irregular operation. Rotating ovens, printing and colourinmachines, generators, shredders, winders, pumps for viscous fluids. 1, 2, 2, With medium masses to be accelerated, irregular operation and shocks. Concrete mixers, drop hammers, cable cars, paper mills, compression pumps, propeller pumps, rope winders, centrifuges. 2, 3, Large masses to be accelerated, irregular operation and heavy shocks. xcavators, hammer mills, piston pumps, presses, rotary boring machines, shears, forge presses, stamping presses. 2,2 2, Very large masses to be accelerated, irregular operation and very heavy shocks. Piston type compressors and pumps without speed variations, heavy roll sets, welding machines, brick presses, stone crushers. 3, 3, FACTOR F2 FACTOR F3 OPRATION PRIOD HOURS / DAY STARTS PR HOURS MOR THAN 2 MOR THAN UP TO 2 24 UP TO SWITCHINGS FACTOR F2 1 1,15 1,3 1 1,25 1,75 3 PR HOUR MTHOD Data needed to correctly select coupling size. - Kw of driver. - R.p.m. of driver - Service coefficiency F, (see below). - Shaft size of driver and driven equipment. (1) Calculate the nominal torque (Pn) in. 7.1 H.P Kw Pn = Pn = r.p.m. r.p.m. (2) Use figures obtained from tables F1, F2 and F3 to determine the service coefficiency F. F = F1 x F2 x F3 Calculate the maximum torque (Pc) Pc = Pn x F (3) In the TCHNICAL DTAIL SAMIFLX COUPLING table, obtained nominal torque and maximum torque for each size coupling. Select size the coupling whose nominal torque is higher than Pn, or whose maximum torque is higher than Pc. XAMPL lectric motor 55 Kw R.P.M. 1.5 Shaft motor 5 Shaft pump 4 Driven equipment Centrifugal pump. Working 24 hours per day Pn = = F1 = 1,2 F2 = 1,3 F3 = 1 F = F1 x F2 x F3 = 1,2 x 1,3 x 1 = 1,5 Pc = Pn x F = 35 x 1,5 = 54 Select size A4 Nominal torque = 4 Maximum torque = 1. Max. bore = 5 4

5 TCHNICAL DTAIL AND DIMNSIONS () COUPLING A A A1 A2 A3 A3B A4 A4B A45 A5 A55 A A7 A A9 A1 A KW PR 1. RPM,7 2 5,5 1, NOM. (TKn), (Tkmax.) SPD R.P.M TORSIONAL STIFFNSS,21,32,95 2,1 4,2 4,2 9,5 9,5, (CTdyn) 1 3. rad -1 RLATIVLY DAMPING (Ψ) MOMNT OF INRTIA J(Kg-m 2 ) Weight Kg,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 - -,1,5,,2,5,75,,155,275,437,25 2,325 4,95 1,2 1, 1, 3,,2,5, , COUPLING A A A1 A2 A3 A3B A4 A4B A45 A5 A55 A A7 A A9 A1 A d PR G L d D D D K J H ,5 1,5 1, * Nominal torque / Maximum torque, with Standard elastic insert hardness 95 Shore A (yellow colour). High performance inserts. Reference HD (ochre colour), enable the torque rating to be increased by 4%. Please consult us. Hubs material: cast iron GG-25 / ductile iron GGG-4 / cast steel GS-45 / stainless steel AISI 31 / aluminium alloy C135 (ALCAN). Unless that quality is specified in advance, supply is made with hubs material GG-25 and insert 95 shore A. 5

6 COUPLING SLCTION SAMIFLX COUPLINGS FOR I..C. STANDARD MOTORS MOTOR SIZ KW SPD 3. R.P.M. MOTOR Ø SHAFT ø SPD 1.5 R.P.M. SPD 1. R.P.M. SPD 75 R.P.M. COUPLING MOTOR COUPLING MOTOR COUPLING MOTOR COUPLING KW Ø SHAFT,37,25 71 A 1 A 1,25 A 1,55,37,75 1,1 19 9S 1, 24 A 24 1,1 24 A 24,75 24 A 24,37 24 A 9L 2,2 24 A 24 1,5 24 A 24 1,1 24 A 24,55 24 A 1L 3 2 KW Ø SHAFT,55,37 A A A 24,75,55 2,2,75 A1 3 2 A1 3 1,5 2 A1 3 2 A1 3 1,1 1M 4 2 A A1 3 2,2 2 A1 3 1,5 2 A1 132S 5,5 7,5 3 A1 3 5,5 3 A A1 3 2,2 3 A1 132M 7,5 3 A ,5 3 A A1 1M 4 42 A A2 42 7,5 42 A ,5 42 A2 1L 1,5 42 A A A2 42 7,5 42 A2 1M 22 4 A3 5 1,5 4 A3 5 1L 22 4 A A3 5 4 A3 3 1,5 2L 55 A3B A3B A3B A3B S 37 A4 5 1,5 A4 225M A3B A4 5 3 A A4 25M 55 A A A A4 2S 75 5 A A A A45 2M 9 5 A A A A45 315S 5 A4 5 A A A5 315M A A5 5 9 A A S 1 7 A A A A M 2 7 A A A A55 4S 25 1 A 2 1 A 1 1 A 4M A 25 1 A A7 KW Ø SHAFT

7 TH LASTIC INSRT SAMIFLX The elastic insert is made of a very special polyurethane elastomer compound which is manufactured to an exceptional quality, providing all the required characteristics of a high performance elastic coupling. High breakage and shearing resistance, and tensile strength. High shock-absorbing capacity, stable, constant resistance. High resistance to abrasion, humidity, oils, corrosive vapours and numerous chemical products. Stability of the performance characteristics from -4 ºC to ºC for standard manufacture insert. We manufacture elastic inserts (type HT) for applications between -4 and ºC. xcellent resistance providing a long life in abrasive, corrosive, humid atmospheres, all without lubrication or maintenance. Samiflex elastic inserts are manufactured in three qualities and five hardnesses, depending on the application. QUALITY RF. HARDNSS COLOUR TMP. RATING FIG. 1 Shore A CLAR STANDARD STD 9 Shore A BLU 4 / C 95 Shore A YLLOW HIGH TMP. HT 95 Shore A ORANG 4 / C HIGH PRFORMAN. HD 97 Shore A OCHR 4 / C HDT 97 Shore A RD 4 / C HR 5 Shore D GRN 4 / C Unless that quality is specified in advance, supply is made with standard elastic insert, hardness 95 Shore A, yellow colour. High-performance inserts. Reference HD and HDT, ochre and red respectively, enable the torque rating to be increased by 4%. Please consult the factory. The elastic insert has three types of symmetrical slots. Fig. 1. Slot 1, for inserting the pins of the holding ring in horizontal assembly. Slot 2, for inserting the pins of the holding ring in vertical assembly. Slot 3, optional application, enabling two set screws to be inserted through two tapped holes in the holding ring to prevent axial movement of this rings. HARDNSS Shore LASTIC INSRT / TORSIONAL STIFFNSS 1 3. rad 1 A1 A2 A3 A4 A45 A5 A55 A A7 A A9 A1A A,22,5 1,5 1,9 2,4 7,5 1, 19, ,7 74,2 92,7 9 A,43 1, 2, 4,35 5,3 7,25 19, 3,9 5, 95,2,9 29, 25, 95 A,95 2,1 4,2 9,5,2 1, 42, 5, 1, 2, 2, 4, 5, 97 A 1,71 3,7 7,5 17,1 2,1 2, 79, 2, 3, 4, 74, 1.95, 5 D 2,37 5,25 1,5 23,75 2, 4, 19,2 19, 291,2 52, 55, 1.19, 1.4, DGRS TORSIONAL ANGL 7

8 HINTS FOR INSTALLATIONS IN HAZARDOUS ARAS II 2G C IIC T4 II 2D C T4 According with the directive ATX 94/9/C, shaft couplings are classified as units to be part of a equipment, under the non-electrical material group. The Samiflex elastic coupling, meet all the ATX conformity requirements for group II, category 2G (gas) and 2D (dust), explosion group IIC and temperature T4. Installation instructions for the Samiflex coupling with ATX certification are published in our bulletin 7/23 and are available to consult and download in our websites and SAMIFLX SPACR COUPLINGS SPD R.P.M. d1 D5 D4 A4 DL , 5, 15, A45 DL , 5, 15, A5 DL , 15, 25 3 A55 DL A DL A7 DL e L1 L2 Type DL L* MATRIAL (ITMS 2+3): DUCTIL IRON GGG4. DYNAMIC BALANCING, GRAD.3 S/VDI 2. STANDARD SIZS IN STOCK. - CONSULT FACTORY FOR SPCIAL SIZS.

9 SAMIFLX SPACR COUPLINGS d1 SPD R.P.M. D1 D2 D3 Type A A L-1 1 A L-1 1 A L-1 1 A L-1 1 A L-1 1 A L A L A L A L D4 e L1 L4 L3 L2 L PUMP SID MOTOR SID Type C D1 D2 D3 D4 D5 e L1 L2 L SPD d1 d2 R.P.M. A1C L-1 1 A2C L-1 1 A3C L A4C L A45C L A5C L A55C L AC L A7C L RF , MATRIAL: CAST IRON GG-25 / DUCTIL IRON GGG-4. 9

10 SAMIFLX BRAKWHL AND DISC COUPLING Type PF Type DF d1 L G D2 A4 PF ,1 A5 PF ,9 A PF ,3 A PF ,25 A7 PF ,2 A7 PF ,45 A PF ,32 A PF ,75 A9 PF ,5 A9 PF , A1 PF ,72 D3 D T P WIGHT Kg. J TOTAL Kg. M 2 d1 L G D1 A4 DF ,152 A5 DF ,449 A DF ,27 A DF ,291 A7 DF ,75 A7 DF ,13 A DF ,42 A DF ,431 A9 DF ,9 A9 DF ,355 RF. 5-, MATRIAL: DUCTIL IRON GGG-4 / CAST STL GS-. RF. 1, MATRIAL: DUCTIL IRON GGG-4. FOR PRIPHRAL SPDS OF OVR V=3m/s, IT IS NCSSARY TO US DUCTIL IRON GGG-4.- DYNAMIC BALANCING IS ALSO NCSSARY. D2 D3 D C P WIGHT Kg. J TOTAL Kg. M 2 1

11 SAMIFLX FLYWHL COUPLINGS Type B Type B-SA d1 L L1 L2 G T D* D4 d2 D1 D2 D3 D5 WIGHT Kg. J TOTAL Kg. M 2 A2 B ,35 A3 B , A4 B A5 B A B RFR TO ORDR-SPCIFIC DRAWING ,23,35,45 A7 B ,75 A B ,41 D h9 D4 FLYWHL SA. J2 Z NUM. d2 T D5 L G d1 D2 D3 WIGHT Kg. J TOTAL Kg. M 2 A2 B-SA A3 B-SA A4 B-SA A5 B-SA A B-SA A7 B-SA A B-SA 215,9 241, ,3 22 3, ,32 352,42 3,32 352,42 4,72 352,42 4,72 517,52 4,72 517,52 571,5 517,52 571,5 73,1 2,2 222,25 244,47 222,25 244,47 295,27 244,47 295,27 333,37 295,27 333,37 43,15 333,37 43,15 4,95 43,15 4,95 542,92 4,95 542,92 41,35 1 / / / / / 2 1 / ,5 9,5 9,5,5,5,5,5,5 1, ,2,24,27,3,5,13,71,13,21,172,251,,23,7 1,1,21 1,23 1, ,15 3,1 RF. 1-4, MATRIAL: CAST IRON GG-25 / DUCTIL IRON GGG-4. FOR PRIPHRAL SPDS OF OVR V=3m/s IT IS NCSSARY TO US DUCTIL IRON GGG-4.- DYNAMIC BALANCING IS ALSO NCSSARY.

12 SAMIFLX COUPLING FOR TAPR BUSH Type TB OUT SID Type TBI IN SID COUPLING TAPR BUSH TB MIN. ød ød L G K H D1 D2 D3 J M A1 TB/TBI , A2 TB/TBI A3 TB/TBI A4 TB/TBI A45 TB/TBI A5 TB/TBI A TB A7 - TB DIMNSIONS TAPR-BUSHS ø d b t ,4 1,4 1, 1, 2,3 2,3 2, 2, 2, 3,3 3,3 3,3 3,3 3,3 3,3 3,3 3,3 3,3 3,3 3, 3, 3, 4,3 4,4 4,4 4,9 4,9 5,4 5,4 5,4 5,4,4,4,4

13 SAMIFLX FLOATING SHAFT COUPLING LIMITD ND FLOAT COUPLING Type FX SPD R.P.M. d D1 A4 FX ,5,5 A45 FX ,5,5 A5 FX ,5 1, A55 FX ,5 1, A FX ,5 A7 FX ,5 A FX , 24, A9 FX , 24, A1 FX , 2, D2 D3 L K G F X FLOATING SHAFT COUPLING Type FXX SPD R.P.M. d A4 FXX A45 FXX A5 FXX A55 FXX RF , MATRIAL; ZINC PLATD STL (CORROSION RSISTANC). RF. 4, MATRIAL: CARBON FIBR COMPOSIT OR ZINC PLATD STL. TYPICAL APPLICATIONS INCLUD COOLING TOWR DRIVS, AND PAPR MACHIN DRIVS. D1 D2 D3 L1 H L* 13

14 INSTRUCTIONS FOR ASSMBLY OF SAMIFLX COUPLINGS 1. POSITIONING OF TH PARTS OF TH COUPLING. Standard coupling hubs, (type A+C) can be positioned on either shaft alike. We recommend putting the flange hub over the drive shaft in couplings with spacer. For couplings with a brakewheel or brakedisc, we recommend putting the hub which houses the wheel or disc, over the shaft of the machine driven. The couplings hubs are supplied pilot bore. Upon request, we supply the hubs finished bore to ISO tolerances and keyways as per DIN 5 Standard. The dynamic balancing of the coupling is made along two planes, quality G,3 as per VDI 2. The balance is made in couplings with finished bore, and indication must be given as to whether it should be made with or without a keyway. 2. RING ASSMBLY WITH LOCKING ST SCRWS. With the purpose of keeping the alignment within the maximum admissible tolerances, and in order to prevent the ring slipping axially, it must be fixed to the elastic insert using two set screws inserted through two tapped holes in the retaining ring. LOCKING ST SCRWS DIMNSIONS FOR RTAINING RINGS Type A A A1 A2 A3 A4 A45 A5 A55 A A7 A A9 A1 A DIN913 M5 M M M M1 M1 M1 M1 M1 M M M M Length ASSMBLY AND START-UP For assembly and start-up of the Samiflex couplings, please follow our installation instructions in our bulletin, 152/97. For ATX requirements, please follow our bulleting 7/ SAFTY PROCDURS The equipment (motor) must not be started up until the holding ring has been assembled and secured with the locking set screws to the elastic insert. The elastic insert is projected outwards from the hubs if the equipment (motor) is started up without the holding ring having first been assembled and secured. Coupling guards should be installed prior to start-up. All rotating equipments are potentially dangerous and can cause serious injury. They must be properly guarded in compliance with standards for the speed and applications in which they are used. It is the responsibility of the user to provide proper guarding accordance with regulations. STANDARD KYWAY DIN 5 & ISO TOLRANCS DIMNSIONS DIN 5 S KYWAY SHAFT TOLRANC OVR TO bxh t1 t2 t1/t ,2 1, 3, 4, 5, 5, 5,5, 7, 7,5 9, 9, 1,,, 13, 15, 17, 1, 1,4 1, 2,3 2, 3,3 3,3 3,3 3, 4,3 4,4 4,9 5,4 5,4,4 7,4,4 9,4 1,4,4 +,1 +,2 +,3 TOLRANCS ISO SHAFT OVR TO H7 H K j g h7 µm. µm. µm. µm. µm. µm

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16 Utg. 7-1 ng PDF, 25 /PO Bengt Olovssons Mekaniska AB Kärsbol 173 S-4 4 Frändefors Sweden Telefon Telefax info@bomab.se Distributor