 |
 |
||||||||||||||||||
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
||||||||||
 |
 |
||||||||||||||||||
|
 |
|
|
 |
|
 |
 |
||||||||||||
|
|
||||||||||||||||||
|
 |
|
|
 |
 |
||||||||||||||
|
|
||||||||||||||||||
|
 |
|
|
 |
|
||||||||||||||
|
 |
||||||||||||||||||
|
 |
|
|||||||||||||||||
|
|||||||||||||||||||
|
 |
|
|||||||||||||||||
 |
|||||||||||||||||||
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
||
|
|
|
|
||
|
 |
|
|
||
|
 |
|
|
||
|
|
 |
|
|
||
|
 |
|
|
||
Designed for high loads:
Flexshaft torque shafts in offshore
wind turbines
Drive trains in wind turbines are constantly exposed to varying wind speeds and loads. Resulting misalignments in the drive train between connected components such as the rotor, couplings and the generator must be compensated to reduce wear and bearing reactions. flexshaft 5.0 torque shafts are specially designed with these particular demands of wind turbine transmissions in mind.
The flexshaft 5.0 enables a direct transfer of torque loads from the rotor to the generator, and is designed for a permanent load of 2,000 kNm; up to 5,000 kNm at peak loads. This ensures safe operation under any conditions, even during strong gusts of wind.
 |
||
|
|
|
 |
 |
 |
||||
|
|
|
|
|
|
|
Reliable compensation of misalignments
and offsets
Flexshaft torque shafts also offer sufficient bending flexibility to counterbalance the misalignments that typically affect wind turbines. This is achieved through targeted intrinsic deformation over the lateral axis. The flexshaft 5.0 absorbs angle displacements and axial offsets, thus serving as a flexible coupling. As a result, there’s no need for moving parts that require a lot of maintenance. This significantly reduces system complexity and the need for maintenance of mechanical components.
Nominal torque ..............................
Max torque ....................................
Material ..................................................
Length ............................................
Diameter ............................................
Weight ..............................................
Patent Pending
2,000 kNm
5,000 kNm
CFK
8,500 mm
995 mm
3,500 kg
High bending flexibility can balance angle and axial misalignments; shown here, an angle displacement of 2 rad*10e-3 and an axial offset of 17 mm.
High torque strength: The double tapered design ensures easy load transfer between the carbon fibre shaft and the steel attachments.
High buckling strength: Balanced aspect ratio provides a torsional stiffness of > 28,000,000 Nm/rad and ensures maximum torque capacity.
Low bending stiffness can compensate mialignments.
flexshaft drive shafts for wind turbines are designed and manufactured in accordance with DNV standard DS-J102 (“Design and Manufacture of Wind Turbine Blades”). Reduced weight (important when it comes to simplifying logistics and improving handling) is a key factor in the assembly of wind turbines – especially with offshore wind farms.
It’s here that flexshaft torque shafts offer decisive advantages, with significant weight reductions versus drive shafts made of steel. Considering the absolutely maintenance-free operation over its complete service life, the flexshaft 5.0 decisively contributes to the economical generation of wind energy, particularly on offshore wind farms that are difficult to access.
Maintenance-free drive elements for reliable operation on the high seas
Features and benefits at a glance
significantly reduced weight
compared to conventional drive shafts made of steel
low upfront investment
due to reduced design complexities and simplified layouts
less effort in assembly
through avoidance of further mechanical components
wear- and maintenance-free
over the complete service life
high operational reliability
thanks to a fully integrated manufacturing process
thermal stability
due to a low coefficient of thermal expansion
