DESCH Habix HWN / HWT Flexible Couplings

Transcription

1 DECH Habix HWN / HWT Flexible Couplings HW B

2 Flexible Habix couplings Flexible Habix couplings Type HWN The flexible DECH Habix coupling, type HWN, is a distorsionfree jaw coupling with a flexible element for the torsionally flexible connection of two shafts. The advantage of the allroundmachined DECH Habix couplings is the precision of the operating characteristic as well as the increased durability. DECH Habix couplings are distorsionfree up to the breaking load of the cast iron jaws and insure a maximum of operational safety. The flexible element is available in white color with a hardness of 92 hore A and in red color with a hardness of 98 hore A. It is highly resistant against wear as well as against oil, ozone and aging. The flexible of the couplings absorbes efficiently shockloads, torsional vibrations and noises. The flexible element of the couplings has been designed to compensate radial, axial and angular movements between the couplinghalves. By the fixed position of the flexible element its deformability in axial direction is free and no harmful axial forces may disturb the bearings even with changing torques. The flexible element of the DECH Habix coupling allows a permanat thermal load up to 80 C. Even low temperatures up to C are allowed. The two halves of the DECH Habix coupling can easily be connected and do not require a high accuracy of the shaft alignment. The couplings are balanced according to DIN IO, quality. Type HWT with Taperbush The DECH Habix couplings type HWT join the advantages of the HWNtypes with the advantages of the taperbush system, which is an easy and simple way of fitting on the shafts for a safe transmission of the torque and for the compensation of shaft misalignments. 2 Type > > > > tandard coupling HWN Taperbush type HWT combined type standard/taper HWNT Components can be combined as needed. The HWTtypes with the taperbush system allow a safe and backlashfree fixation of the hubs on the shafts even at bigger shaft tolerances. The slide fit allows the axial alignment of the coupling. The exchange of the felxible element is possible by simply sliding the coupling halves in axial direction without removing the driving or driven machine. The field of application of the DECH Habix coupling is all the engineering industry wherever a safe connection between motor and driven machine is required.

3 Technical data Torque Nm ize ax. rotational speed rpm nominal TKN max Tkmax Torque Nm changing TKW nominal TKN 92 hore A white max Tkmax changing TKW 98 hore A red 000 2, , ax. shaft misalignment2) ize radial1) Kr / axiale Ka / angular1) Kw / rad 0, 0, 1,4 0,9 0, 0,9 0, 1,8 1,0 0, 2,0 1,0 0,36 2,1 0, 2,2 0, 2,6 0, 3,0 0, 3,4 > Torques for shaft fit with keyway 1) The values mentioned are valid for 1.0 rpm and may occur only seperataly. At multiple misalignments or higher speeds the values must be reduced (see page 7). 2) The values mentioned are valid for an ambient temperature of C. At higher temperatures the values must be reduced. 3

4 Type HWN l1 l2 s u d2 D2 D1 d1 da u 1 Part 1 2 Part 2 D1 d1 l1 D2 d2 l2 da u s ize Pre. max. Pre. max , , oments of inertia kgm2 Weight / kg ize 4 Part 1 Part 2 Part 1 Part 2 0, 0,21 0, , , 0, 0,000 0, ,52 0,76 0,000 0, ,4 0, ,0013 1,7 2,3 0,00 0,0031 2,8 3,1 0,0031 0,0052 3,7 4,6 0,062 0,0 5,7 7,0 0,013 0,0 8,8 0,027 0, ,068 0,0 > Drill holes H7 with keyway in accordance with DIN 6885/1; tolerance zone J9 and set screws on the keyway; weight and moments of inertia valid for medium bore diametes; coupling half materials: ENJL0 () in accordance with DIN EN 1561

5 l3 Type HWT u D4 3 d4 da u D3 d3 l4 s 4 Part 4 Part 3 D3 D4 d3 l3 min. max. Taper bush no. d4 l4 da u s ize min. max. Taper bush no , ,5 6 64,5 64, Weight kg oments of inertia kgm2 ize Part 3 Part 4 Part 3 Part 4 0,39 0,39 0, , , 0, 0,000 0,000 0,86 0,86 0, , ,4 1,4 0,0017 0,0017 2,5 2,5 0,0037 0,0037 2,7 2,7 0,0054 0,0054 3,4 4,8 0,0082 0,0012 6,8 7,3 0,023 0,026 9,5 0,044 0,081 > Weight and moments of inertia valid for medium bore diameters inc. Taperbushes. aterial of coupling halves: ENJL0 () DIN EN

6 Taper bushes with keyway acc. to DIN 6885/1 Tolerance J9 Bore ø of available Taperbushes Taperbush no * * 12 * * / * These bohrholes are with lat keyway DIN 6885/3 6

7 Allowable misalignments Radial misalignment Axial misalignment Angular misalignment > Reduction of the allowable values of misalignment when the combination of misalignments occur or at other rotational speeds: Wr Wa Kr + Ka + Ww Kw X Wr/a/w = measured radial, axial or angular misalignment of the shafts resp. of the couplinghalves. Kr/a/w = allowable radial, axial or angular misalignment of the shafts resp. of the couplinghalves 2 Reduction factor X 1,8 1,6 1,4 1 0,8 0, Rotational speed (rpm) 7

8 Allocation to IEC motor Power P of the IEC motor and allocated Habix couplings ize of the three phase motor rpm P Habix kw ize 10 rpm P Habix kw ize 00 rpm P Habix kw ize 0,09 0,06 0,037 0,12 0,09 0,0 0, 0,12 0,06 0, 0, 0,09 0 rpm P Habix kw ize Form E DIN 7 part 3 d x l at speed approx. 10 rpm and less 00 rpm 9 x x 23 0,37 0, 0, 0,09 0, 0,37 0, 0,12 x 0, 0, 0,37 0, 0, 0, 0, 0, 0,37 x L 2,2 0, x 2,2 0, 3 2,2 3 2, L ,5 5,5 7,5 7,5 1 0 L,5 15 0, L L ,5 37 x x x x 80 5, ,5 7,5,5 15 x 1 x 1 x 1 x 80 x 1 x 1,5 x 1 x 0 5 x 1 x x 0 x x 0 x 0 0 x 0 x x 0 80x x 0 80x x 0 80x x 0 95 x x x L 3 L L 8 haft ends

9 > As proposed in the table (page 8) for surface cooled threephase motors with cage rotor acc. to DIN 673, page1 (data for motor 56, 63, 71, 80, 315 L, 3 L, 0 L, see catalogne iemens). This allocation is a preliminary selection for normal conditions of operation. For conditions of operation under shock and changing loads the selection must be made according to the following. election > The torque of the machine TAN is determind by: TAN [Nm] = 90 x Potor [kw] n [rpm] This torque TAN mutiplied by a safty factor depending on the application and the temperature factor T (see table page) gives the required nominal coupling torque TKN Result: TKN x T x TAN Design example for IEC standard motors Dates of the plant Driving machine: Threephase motor Power of the motor Rotation at speed Driven machine: ixer Ambient temperature: 5 P = kw n = 15 rpm + C Layout of the coupling TAN [Nm] = 90 x kw 15 rpm = 2 Nm TAN = 1, x x 2 Nm = 544 Nm election: Habix size flexible element 92 hore A TKN = 6 Nm > In case that bigger shock or changing load occur we recoend a revision according to DIN 7. An adequate calculation progra is available. For such a revision the following information is required: Kind of the driving machine Kind of the driven machine Power of driving and driven machines Rotational speed of operation hock loads Exciting loads oments of inertia of load and driving sides tarts per hour Ambient temperature 9

10 afety factors Assignment of load characteristics according to type of working machine DREDER Bucket conveyor Landing gear (caterpillar) Landing gear (rail) anoeuvring winches Pumps Impellers Cutter heads lewing gear ENERATOR, TRANFORER Frequency transformers enerators Welding generators CHEICAL INDUTRY Cooling drums ixers Agitators (liquid material) Agitators (semiliquid material) Drying drums Centrifuges (light) Centrifuges (heavy OIL INDUTRY Pipeline pumps Rotary drilling equipment CONVEYOR Pithead winches Winding engines jointedband conveyors Belt conveyors (bulk material) Belt conveyors (piece goods) Band pocket conveyors Chain conveyors Circular conveyors Load elevators Bucket conveyors for flour Passenger lifts Plate conveyors crew conveyors Ballast elevators Inclined hoists teel belt conveyors Drag chain conveyors BLOWER,VENTILATOR Rotary piston blowers Blowers (axial/radial) Cooling tower fans Induced draught fans Turbo blowers BUILDIN ACHINERY Hoists Concrete mixers Road construction machinery Driving machines RUBBER ACHINERY Extruders Calenders Kneading mill ixers Rolling mills WOOD WORKIN ACHINE Barkers Planing machines Wood working machines aw frames CRANE Luing gear block Travelling gear Hoist gear lewing gear Derricking jib gear PLAIC INDUTRY ACHINE Extruders Calenders ixers Crushers ETAL WORKIN ACHINE Plate bending machines Plate straightening machines Haers etal planning machines Presses hears Forging presses Punch presses Countershafts, line shafts achine tools (main drives) achine tools (auxiliary drives) FOOD INDUTRY ACHINERY Bottling and container illing machines Kneading machines ash tubs Packaging machines Cane crushers Cane cutters Cane mills ugar beet cutters ugar beet washing machines PAPER ACHINE Couches lazing cylinders Pulper Pulp grinders Calenders Wet presses Willows uction presses uction rolls Drying cylinders Operating factor Load characteristics of the working machine Electric motors, turbines, hydraulic motors 1 1, 1, Piston machines 46 cylinders, degree of nonuniformity 1:0 1:0 1, 2 Piston machines 13 cylinders, degree of nonuniformity up to 1:0 2 2,5 PUP Piston pumps Centrifugal pumps (light liquids) Centrifugal pumps (viscous liquids) Plunger pumps Press pumps TONE AND CLAY WORKIN ACHINE Crusher Rotary ovens Haer mills Ball mills Tube mills Beater mills Brick pressesn TEXTILE ACHINE Batchers Printing and dyeing machines Tanning vats Willows Looms COPREOR Piston compressors Turbo compressors ETAL ROLLIN ILL Plate shears anipulator for turning sheets Ingot pushers Ingot and slabbingmill train Ingot handling machinery Wire drawing benches Descaling machines Thin plate mills Heavy and medium plate mills Winding machines (strip and wire) Cold rolling mills Chain tractor Billet shears Cooling beds Cross tractor Roller tables (light) Roller tables (heavy) Roller straighteners Tube welding machines Triing shears Cropping shears Continuous casting plant Rollers adjustment drive anipulators LAUNDRIE Tumblers Washing machines WATER TREATENT Aerators crew pumps Temperature factor T ϑ [ C] < ϑ < + + < ϑ < + + < ϑ < + + < ϑ < +80 T 1,0 1,8

11 DECH DPC Couplings Hadelex Couplings Type X and TX Clamp Couplings DIN 5 Flange Couplings DIN 1 DECH HRC Couplings Clamp Couplings teel / tainless steel 1piece / 2piece design Hadelex Couplings Type F ini Couplings DECH Flex Couplings Conax Friction Clutches Orpex Couplings Planox Friction Couplings Catalogues available on request!

12 HW B DECH Antriebs t echnik mbh & Co. K DECH Antriebstechnik mbh & Co. K Powered by TCPDF ( DECH Canada Ltd. 0 hearson Crescent Cambridge, Ontario Canada N 1T 1J6 T F I E desch@desch.on.ca DECH Italia Drive Technology Ufficio di rappresentanza in Italia Via Cavriana, ilano/italy T F I E desch.italia@desch.de DECH China achinery ales (hanghai) Ltd. Building Nr. 3 No. 8 inshen Road, ongjiang Industrial Zone 12 hanghai/china T F I E desch.china@desch.de Technical changes reser ved DECH DPC mbh & Co. K Postbox 593 Arnsberg/ermany Kleinbahnstraße Arnsberg/ermany T F I E info@desch.de Postbox 593 Arnsberg/ermany Kleinbahnstraße Arnsberg/ermany T F I E info@desch.de