INTEGRATED SHAFT COUPLING (ISC) GENERAL INFORMATION
GeNeRaL iNFORMaTiON, WORKiNG PRiNCiPLe The new VULKAN Integrated Shaft Coupling (ISC) combines in a unique way the well proven RATO DS torsional rubber coupling with a double cardanic intermediate shaft. The working principle of the ISC is based on the fact that the RATO DS cou-
It was found that the angular deflection of the RATO DS causes – even at high
pling transmits the torque primarily by shear stresses in the rubber which
misalignment levels – a rather low strain level compared to the torque load
have a pre-dominant radial/circumferential component. Therefore the RATO
and thus a low power loss.
DS coupling has a high radial stiffness compared to RATO R couplings. The
Therefore no misalignment coupling is required between RATO DS and the inter-
high radial stiffness and the low axial and bending stiffness make the RATO
mediate shaft. The shaft will be directly connected to the inner ring of the radially
DS suitable to work not only as a torsional coupling but rather as an inte-
unsupported RATO DS element. Together with the misalignment coupling at the
grated misalignment coupling when rigidly connected to an intermediate
rear end of the shaft the ISC is always of double cardanic design thus featuring
shaft with a second bending flexible pivot at the shaft rear end.
high misalignment capacity and low reaction forces.
iSC arrangement between resiliently mounted diesel engine and Z-drive gearbox
Adapter Steel flange plate membrane assembly
Comp intermedi
posite iate shaft
adVaNTaGeS Compared to pure torsional or conventional misalignment couplings the Integrated Shaft Coupling (ISC) offers the following advantages: Significant reduction of parts due to bearing less design.
high misalignment capacity, low reaction forces.
advantageous weight saving of the entire coupling.
No noise transmission path through metallic or bearing parts.
Up to seven meters long Composite intermediate shaft.
extended torsional vibration tuning capabilities.
iSC arrangement between electric motor and Z-drive gearbox
RATO DS dual
Adapter flange plate
Hub
Technical data ISC Size
Nominal Torque
Size
TKN kNm
Perm. Rotational Bending stiffness Nominal diameter Composite of RATO DS Speed Intermediate Shaft Element nKmax 1/min
Cw kNm/rad
Proposed Max. Length Composite Intermediate shaft
Coupling Radial Stiffness (Referred to Max. Intermediate Shaft Length)
Coupling Radial Misalignment Capacity (Referred to Max. Intermediate Shaft Length)
Coupling Axial Stiffness
Coupling Axial Misalignment Capacity
Lcs mm
Cr kN/mm
∆K r mm
Ca kN/mm
∆K a mm
dcs mm
A2115 S
10,0
2100
25
239
1000
0,050
8,7
0,4
9,4
A2116 S
10,0
2100
38
239
3000
0,008
26,2
0,7
6,2
A21D5 S
20,0
2100
67
246
1500
0,059
13,1
0,9
9,4
A21D6 S
20,0
2100
101
246
4000
0,013
34,9
1,5
6,2 10,0
A2315 S
12,5
2050
31
255
1000
0,062
8,7
0,5
A2316 S
12,5
2050
47
255
3000
0,010
26,2
0,8
6,6
A23D5 S
25,0
2050
82
262
1500
0,073
13,1
1,0
10,0
A23D6 S
25,0
2050
124
262
4000
0,015
34,9
1,6
6,6
A2515 S
16,0
1800
38
281
1000
0,076
8,7
0,5
10,8
A2516 S
16,0
1800
58
281
3000
0,013
26,2
0,8
7,1
A25D5 S
31,5
1800
101
281
1500
0,090
13,1
1,0
10,8
A25D6 S
31,5
1800
153
281
4000
0,019
34,9
1,7
7,1
A2715 S
20,0
1700
48
304
1000
0,096
8,7
0,6
11,6
A2716 S
20,0
1700
73
304
3000
0,016
26,2
0,9
7,6
A27D5 S
40,0
1700
127
304
1500
0,113
13,1
1,1
11,6
A27D6 S
40,0
1700
193
304
4000
0,024
34,9
1,8
7,6
A2915 S
25,0
1600
62
330
1000
0,124
8,7
0,6
12,7
A2916 S
25,0
1600
94
330
3000
0,021
26,2
1,0
8,3
A29D5 S
50,0
1600
164
330
1500
0,146
13,1
1,2
12,7
A29D6 S
50,0
1600
248
330
7000
0,010
61,1
2,0
8,3
A3115 S
31,5
1410
77
355
1000
0,154
8,7
0,7
13,6
A3116 S
31,5
1410
116
355
7000
0,005
61,1
1,1
8,9
A31D5 S
63,0
1410
203
355
3000
0,045
26,2
1,3
13,6
A31D6 S
63,0
1410
308
355
7000
0,013
61,1
2,1
8,9
A3315 S
40,0
1350
97
384
1000
0,194
8,7
0,7
14,7
A3316 S
40,0
1350
147
384
7000
0,006
61,1
1,1
9,7
A33D5 S
80,0
1350
256
384
3000
0,057
26,2
1,4
14,7
A33D6 S
80,0
1350
388
384
7000
0,016
61,1
2,3
9,7
A3415 S
50,0
1250
120
412
3000
0,027
26,2
0,8
15,8
A3416 S
50,0
1250
182
412
7000
0,007
61,1
1,2
10,4
A34D5 S
100,0
1250
318
412
7000
0,013
61,1
1,5
15,8
A34D6 S
100,0
1250
481
412
7000
0,020
61,1
2,5
10,4
A3915 S
80,0
1040
186
477
3000
0,041
26,2
0,9
18,3
A3916 S
80,0
1040
282
477
7000
0,011
61,1
1,4
12,0
A39D5 S
160,0
1040
492
477
7000
0,020
61,1
1,7
18,3
A39D6 S
160,0
1040
745
477
7000
0,030
61,1
2,8
12,0
Notice: In addition to the above shown technical data of the ISC all technical data and advises given in the RATO DS catalogue (issue 05/2011) apply without restriction to the DS elements. The present catalogue shall replace all previous editions, any previous printings shall no longer be valid. Based on new developments, VULKAN reserves the right to amend and change any details contained in this catalogue respectively. The new data shall only apply with respect to couplings that were ordered after said amendment or change. It shall be the responsibility of the user to ensure that only the latest catalogue issue will be used. The respective latest issue can be seen on the website of VULKAN on www.vulkan.com. The data contained in this catalogue refer to the technical standard as presently used by VULKAN with defined conditions according to the explanations. It shall be the sole responsibility and deci-
sion of the system administrator for the drive line to draw conclusions about the system behaviour. VULKAN torsional vibration analysis usually only consider the pure mechanical mass-elastic system. Being a component manufacturer exclusively, VULKAN assumes no system responsibility with the analysis of the torsional vibration system (stationary, transiently)! The accuracy of the analysis depends on the exactness of the used data and the data VULKAN is provided with, respectively. Any changes due to the technological progress are reserved. For questions or queries please contact VULKAN. Status: 05/2011 All duplication, reprinting and translation rights are reserved. We reserve the right to modify dimensions and constructions without prior notice.
Head Office: VULKAN Kupplungs- und Getriebebau Bernhard Hackforth GmbH & Co. KG | Heerstraße 66 | 44653 Herne | Germany Phone + 49 (0) 2325 922-0 | Fax + 49 (0) 2325 71110 | Mail info.vkg@vulkan.com