JAC COUPLING
JAC COUPLING
Description
Power transmission from gearbox to generator
Accommodation of axial misalignment
Electrical isolation between gearbox and generator
Prevention of overload
Properties
Torque limiters
When overload to be more than specified torque happened, Slipping unit embedded in torque limiter cuts the power to protect power train components and it operates without remarkable decrease of torque during required life period. It is applied to over 2MW.
Shaft connection
It is easy to install because keyless type is applied when connecting shaft between generator and gearbox.
Pretension nut enables to clamp bolt by means of hand work without using hydraulic torque wrench.
Space Tube
When leakage current occurred, Glass fiber reinforced plastic with superiority of electrical isolation and strength is applied in order to prevent the damage of power train components.
It is designed to be able to endure temperature range of -30℃ to +70℃.
Miscellaneous
Exterior coupling parts is designed to meet ISO 12944 grade C3 for onshore and C4 for offshore. Suitable damping capacity of material is provided effectively to prevent the vibration of axial direction.
Dimension
|
Type
|
Torque
|
Speed
|
Misalignment
|
|||||
|
Rated (Nm)
|
Max. (Nm)
|
Slip (Nm)
|
Rated (Nm)
|
Max. (Nm)
|
Axial (mm)
|
Angle (deg)
|
Radial (mm)
|
|
|
0.75MW
|
7,800
|
8,500
|
N/A
|
750~1,500 |
1,735
|
±12
|
2
|
15.9
|
|
2MW
|
14,500
|
15,300
|
16,700~25,900 |
800~1,610 |
1,820
|
±6
|
1
|
10
|
|
3MW
|
21,000
|
23,925
|
30,000~35,000 |
|
1,980
|
±10
|
1
|
33
|
|
5.5MW
|
50,950
|
57,000
|
63,000~86,000 |
350~1,300 |
1,500
|
±10
|
1
|
25
|
* JWPT Type is coupling embedded Torque Limiter.
|
Type
|
Size
|
A
|
B
|
CF
|
D1/ D2
|
E
|
F
|
G
|
H
|
I
|
J1/ J2
|
K
|
L
|
|
JWP JWP
|
0.75MW
|
220
|
700
|
350
|
100/110
|
20
|
420
|
35
|
490
|
545
|
65
|
165
|
765
|
|
JWP JWPT
|
2MW
|
265
|
830
|
400
|
130/140
|
30
|
905
|
55
|
1,015
|
1,115
|
76.5
|
277
|
1,268
|
|
JWP JWPT
|
3MW
|
320
|
1,000
|
530
|
150
|
30
|
989
|
58
|
1,105
|
1,165
|
83
|
354
|
1,371
|
|
JWPJWPT
|
5.5MW
|
370
|
1,200
|
670
|
180
|
40
|
1,159
|
48
|
1,375
|
1,498
|
94
|
431.5
|
1,686
|
Assembly
① Clamping set on gearbox shaft
② Brake disc with disc pack
③ GFRP spacer
④ Torque limiter with disc pack
⑤ Clamping set on generator shaft
Wind Turbine Coupling by JAC
 |
Rated torque : 7,800Nm Maximum torque : 14,800Nm Slip torque (Torque limiter) : None Max. axial misalignment : ±12mm Max. angle misalignment : 2.0˚ Max. radial misalignment : 15mm With Composite or steel materials spacer With Composite materials disc pack |
 |
Rated torque : 12,500Nm Maximum torque : 15,300Nm Slip torque (Torque limiter) : 16,700~25,900 Max. axial misalignment : ±6mm Max. angle misalignment : 1.0˚ Max. radial misalignment : 10mm With Composite materials spacer With Composite materials disc pack |
 |
Rated torque : 21,000Nm Maximum torque : 23,925Nm Slip torque (Torque limiter) : 30,000~35,000 Max. axial misalignment : ±10mm Max. angle misalignment : 1.0˚ Max. radial misalignment : 33mm With Composite or steel materials spacer With Composite materials disc pack |
 |
Rated torque : 50,950Nm Maximum torque : 57,000Nm Slip torque (Torque limiter) : 63,000~86,000 Max. axial misalignment : ±10mm Max. angle misalignment : 1.0˚ Max. radial misalignment : 25mm With Composite materials spacer With Composite materials disc pack |
Inspection
 |
Attached Certificate
|
 |
Design Calculation
|
Order Specification
| Dimensions A mm(with tolerance) B mm C mm(with tolerance) D1 mm(with tolerance) D2 mm(with tolerance) DBSE mm E mm F mm G mm H mm I mm(with tolerance) |
Technical data electrical power operating speed maximum speed electric resistance rated torque max. torque in operation minimum slip torque maximum slip torque maximum braking torque brake disc material maximum axial misalignment maximum angle misalignment maximum radial misalignment |
※Adjoining order sheet is required to check your requirement of coupling.