Flexible claw couplings ELKU-N

Transcription

1 Flexible claw couplings ELKUN KWN 01 Couplings from Dresden / Germany By specialists for specialists řemeny, převody a lineární technika

2 general information buffer part hub technical features The flexible claw coupling N (ELKUN) is a positivelocking, torsionally, flexible coupling which allows radial, axial and angular displacement between the driving and the driven shafts. It is slip proof. Torque is transmitted through the flexible buffer set into the pockets of the flexible buffer section which is distributed evenly over the circumference of the coupling. The claws on the guide ring or claw section grip into the buffer gaps. we also offer special models: design with spacer design with brake disc or brake drum design with radially removable brake disk design for vertical fitting design for explosive surroundings II G llb T 0 C T a 0 C ll D C 0 C T a 0 C design of claw couplings according to KWN 00 other designs on request The buffers are subjected to compression from which results slight wear and high loading capacity. The high damping of the coupling protects the drive from excessive dynamic overloading. The progressively rising spring charcteristic allows a rapid reduction in energy oscillations and limits their amplitude. Perfect operation can be guaranteed at a working temperature of C to + C. The standard design is in grey cast iron ENGJLDIN EN 11. Technical changes for the purpose of progress are reserved. The design may differ from pictorial representation; dimensions have to be complying with given ones.

3 technical features Table 1 Recommended values for influence factors temperature factor S ϑ numerical values for perbunan , S ϑ C von +0 bis starting factor S Z number of starts per hour number of starts per hour S Z over 0 starts per hour please request 1,0 1, 1, 1, impact factor S A or S L slight impacts medium impects high impacts S A or S L 1, 1,, calculation example: Coupling ELKUN searched for steady drive. Driving machine: AC motor type 1 L 00 kw 1 rpm, shaft diameter mm P AN 00 T AN = 9 0 = 9 0 = 1 7 [Nm] n AN 1 The variety of types Type A three parts design Type B in two parts design Type S1 design with brake disk Type S design with radial dismountable brake disk Type H design with spacer quantity Z = per hour ambient temperature ϑ = + C starting torque T AS T AN = 7 Nm Working machine: centrifugal pump with a relatively low mass inertia average load torque T LN = 1 Nm impact of the rated torque T KN T LN S ϑ = 1 Nm 1, = 1 Nm according to the rated torque is the ELKUN coupling in question for T KN = 00 Nm and T K = 000 Nm. Check for T K factors: starting factor: S Z = 1 temperature factor: S ϑ = 1, impact factor: S A = 1, T K T AS S Z S ϑ S A = 7 Nm 1 1, 1, = Nm With this example, a coupling selection is simplified by Bill passage represented. It is recommended that a coupling selection by the trained personnel of KWD leave to carry. T AN : installation torque [Nm] T KN : coupling torque [Nm] T LN : load torque [Nm] T K :. coupling torque [Nm] P AN : power [kw] n AN : input speed [rpm] Z : starting frequency ϑ : ambient temperature [ C]

4 type A hub buffer part Ordering example: ELKUN A 1 7 H7 (x) 1v ) (x) ) KWN 01 Designation of a flexible claw coupling N type A, nominal 1, bore d = 7 mm, tolerance zone H7, without keyway in the shortened buffer part (hub length l = mm) (for clamping unit) and pilot bore d = 1 mm (with hub length l = mm). Footnotes see page 1. main dimensions Table pilot bore ) d pilot bore ) d d d 1 d 1 l 1 l l l l 7 s 1 min min h

5 Table permissible shaft misalignment and alignment dimension dimension s min [mm] dimension s [mm] perm. axial displacement Δ K a [mm] perm. radial displacement Δ K r [mm] at speed n perm. angular displacement Δ K w * [mm] at speed n perm angular displacement Δ K w [ ] at speed n n [min 1 ] n [min 1 ] , 0, 0, 0, 0, 0, 0, 0, 00 0, 0, 0,7 0, 0 0,7 0, 00 0, 0, 0, 1 0, 1 1 0, 0, , , 1 1, 0, 0, , 0, , , axial displacement radial displacement angular displacement Table characteristic values speed torque [Nm] n [min 1 ] T KN T K ±T KW torsion angle ϕ [ ] at T KN dyn. torsional stiffness C dyn [ knm/rad ] rel. damping Ψ moment of inertia J [kgm ] T KN 0, K [ ] buffer part + hub buffer part mass m [kg] + hub ,,0,9,,,0,,, 9, ,, 7,1,,,,,,, 7, 777, 97, ,00 0,00 0,01 0,0 0,0 0,07 1 0, 0, 1,0 1, 1, 1,7,,,,,9, 1, 0,00 0,00 0,01 0,0 0,0 0,0 7 0, 1,0 1, 1,7,,,, 9, 1 0 1,,,,7,9 9, 1 17, ,,,,, 1 19,

6 type B claw part buffer part Ordering example: ELKUN B 0 H7P1 ) (x) ) 1 H7P ) (x) KWN 01 Designation of a flexible claw coupling N type B, nominal, bore d = 0 mm, tolerance zone H7, with keyway in buffer part, (hub length l = mm), bore d = 1 mm, tolerance zone H7 and two keyways ( staggered) in the shortened claw part (with hub length l = mm). Footnotes see page 1. main dimensions Table pilot bore ) d pilot bore ) d d d 1 d 1 l 1 l l l l 7 s 1 min min h9,,

7 7 Table permissible shaft misalignment and alignment dimension dimension s min [mm] dimension s [mm] perm. axial displacement Δ K a [mm] perm. radial displacement Δ K r [mm] at speed n perm. angular displacement Δ K w * [mm] at speed n perm angular displacement Δ K w [ ] at speed n n [min 1 ] n [min 1 ] ,, 1 0, 0, 0, 0, 0, 0, 0, 0, 00 0, 0, 0,7 0, 0 0,7 0, axial displacement radial displacement angular displacement Table 7 characteristic values,, speed torque [Nm] n [min 1 ] T KN T K ±T KW torsion angle ϕ [ ] at T KN dyn. torsional stiffness C dyn [ knm/rad ] rel. damping Ψ moment of inertia J [kgm ] T KN 0, K [ ] buffer part claw part buffer part,,,, 1,,0,9,,,0,, 1,,,,, 7,1,,,,, 0,0001 0,000 0,000 0,0009 0,00 0,00 0,01 0,0 0,0 0,07 0,0001 0,0001 0,000 0,000 0,00 0,00 0,01 0,0 0,0 0, , 1,,,,7,9 9, 1 17, mass m [kg] claw part 0,7 1,,,,7 7,1, 11, 1, 1

8 type S1 hub buffer part brake disk Ordering example: ELKUN S1 1 0 H7P1 ) (x0) ) 1v ) (x0) ) KWN 01 Designation of a flexible claw coupling N type S1, nominal with brake disk d = 1 mm, bore d = 0 mm, tolerance zone H7, with keyway, (hub length l = 0 mm), pilot bore d = 1 mm, (hub length l = 0 mm). Footnotes see page 1. main dimensions Table pilot bore ) d d d d 1 d 1 d b 1 l 1 l l l 7 s 1 l min min brake torque dynamically brake torque statically h

9 9 special designs hub brake drum ELKUN P: flexible claw coupling with brake drum buffer part Table 9 characteristic values speed torque [Nm] n [min 1 ] T KN T K ±T KW torsion angle ϕ [ ] at T KN dyn. torsional stiffness C dyn [ knm/rad ] rel. damping Ψ moment of inertia J [kgm ] bufferpart + claw T KN 0, K brake disk ring + hub bufferpart + brake disk mass m [kg] + hub ,0,9,,,0,,,, 9,7 9, , 7,1,,,,,,,,, 7, 7, 777, 777, 97,9 97, [ ] , 0,9 1,07,,,,1 9,99,,,9 1,,,,9, 9,0 7 0,00 0,01 0,0 0,0 0,0 7 0, 1, ,,,0 9, 1,0 0,0 11, 1,0 17,,7 1,,1,7 91,0,7 117, 9, 1,,,, 17,,0 1, 0,0,0,0,0,0,0,,,, 1 19,

10 type S hub 1 hub buffer part brake disk ELKUN S: flexible claw coupling with brake disc, five parts Ordering example: ELKUN S 1x 0 H7P1 ) (x0) ) 1v ) (x0) ) KWN 01 Designation of a flexible claw coupling N type S, nominal with brake disk d = 1 mm, b 1 = mm, bore d = 0 mm, tolerance zone H7, with keyway, (hub length l = 0 mm), pilot bore d = 1 mm, (hub length l = 0 mm). Footnotes see page 1. main dimensions Table d d d d b 1 l 1 l l s 1 l min h

11 11 special designs ELKUN S: flexible claw coupling as connecting coupling for hydrodynamically coupling TKN S Table 11 characteristic values speed torque [Nm] n [min 1 ] T KN T K ±T KW torsion angle ϕ [ ] at T KN dyn. torsional stiffness C dyn [ knm/rad ] rel. damping Ψ moment of inertia J [kgm ] bufferpart + claw T KN 0, K [ ] BS + hub ring + hub bufferpart + BS + hub mass m [kg] + hub ,0,9,,,0,,,,,, 9,7 9,7 9,7 9,7, 7,1,,,,,,,,,,,,, 0, 0, 1,,7,,,, 7, 7, 7, 7, 0,00 0,01 0,0 0,0 0, , 0,, 9, ,,,, 1 19, 7 7

12 type H 1 spacer hub buffer part Ordering example: ELKUN H H7P1 ) (x0) ) 0v ) (x) ) KWN 01 Designation of a flexible claw coupling N type H, nominal with spacer s = mm, bore d = mm, tolerance zone H7, with keyway, (hub length l = 0 mm), pilot bore d = 0 mm, (hub length l = mm). Footnotes see page 1. main dimensions,, pilot bore ) d min d min d d 1 d 1 d 1 l 1 l l l s s h , 11, 11, 1, 1, 11, 11, 1, 1, 1,, 17,,, 17,,, 1, 17,. Table

13 1 special designs ELKUN: flexible claw coupling with taperlockclamping unit Table 1,, speed n [min 1 ] T KN T K ±T KW torque [Nm] torsion angle ϕ [ ] at T KN dyn. torsional stiffness C dyn [ knm/rad ] rel. damping Ψ l moment of inertia J [kgm ] mass m [kg] T KN 0, K [ ] buffer part buffer part +,,,, 1, 1, 1,,0,0,0,0,0,9,9,9,9,9,,,,,,,,,0,0,0,0,,,,,,,,,,,,,,, 7,1 7,1 7,1 7,1 7,1,,,,,,,,,,,,,,, , 11, 11, 1, 1, 11, 11, 1, 1, 1,, 17,,, 17,,, 1, 17,, 0,000 0,000 0,0009 0,0009 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,01 0,01 0,01 0,01 0,01 0,0 0,0 0,0 0,0 0,0 0,0 0,0 0,0 0,07 0,07 0,07 0,07 characteristic values + spacer + hub 0,001 0,001 0,00 0,001 0,00 0,000 0,00 0,0099 0,0 0,0 0,011 0,0 0,0 0,01 0,000 0,0 0,00 0,00 0,0 0,0 0,0 0,0 0,0 0,0 0,000 0,00 0, , 0, 1, 1, 1,,,,,,,,,,,,7,7,7,7,7,9,9,9,9 9, 9, 9, 9, , 17, 17, spacer + hub 1,9,7,9,,7,,,, 7,1, 9 9, 9,9 9,, 11, 11,7 1,7 1 1, 1, 19,7 0, 1,,,7, 9, 7, 9

14 remarks 1 ELKUN: flexible claw coupling in flange design If orders do not specify the length of the hub is, we have been supplying prospectus. Special designs are available on request: Available in cast iron ENGJS01U DIN EN 1, two keyways with locking thread finish bore without keyway (for clamping sets) Versions with hole for removing the shaft hard chromed brake disk 1) bore to ISOfit H7, keyway to DIN sheet 1, fit JS 9 ) without keyway, pilot bore untoleranced dimension, average to DIN ISO 7 ) see page 1 remarks ) see page 1 type of hub bore type of the hub bore Table 1 Tolerancefield H7 Hub bore pilot bored without keyway one keyway two keyways turned two keyways turned Abbreviation v P1 P P

15 1 remarks roll screen with ELKUN log washer drive with ELKUN Materials Hub,, claw body and buffer part: ENGJL DIN EN 11 brake disk: EN SJ+N / GS DIN 1 balancing condition In general, the elastic claw couplings in unbalanced state delivered. After the user s requirements, they can dynamically the quality Q. (ISO Recommendation 19) or static delivered balanced. buffer: Perbunan Shore A spacer: ENGJS01U DIN EN 1 alternative materials at the manufacturer s Installation and operating conditions The arrangement of the coupling parts to be connected to the Shaft ends is desired. The given permitted misalignment values provide general Values under the following conditions is: Load up to the rated torque Operating speed n = 1 00 rpm (for n <1 00 min 1 is the imum speed) ambient temperature of + C. Maximum values in radial or angular misalignment Size selection in accordance with DIN 7 Part Size selection in accordance with DIN 7 Part The design of the coupling is the laws of physics. It is recommended that a coupling selection the trained personnel of KWD perform to leave. If both shifts at the same time, the values may only be used proportionately. In this case, please consult with the manufacturer.

16 Issue: 0/01 Sídlo firmy a centrální sklad / Headquarters TYMA CZ, s.r.o. Na Pískách 71/1 CZ 0 0 Trmice Tel.: Fax: E mail: info@tyma.cz http: e shop: beltonline.com Certified in accordance with ISO 01: 00 Scope development, manufacture, sale and servicing of couplings in the drive technology field Certified Welding Company / GSI SLV