Planetary Stage Layout

Structural decisions such as the number of planetary stages and the number of planets per stage have a major impact on the required design space.

The goal: Achieve higher power classes within the same design space. To this end, Winergy optimizes all gearbox components and uses new technologies to achieve a space-optimized design. An design space that could accommodate a 4.5 MW power class in 2017 can already handle twice as much in 2024: a 9 MW gearbox in the same size. Or: Gearboxes with the same power class are significantly smaller than previous models.
 

What distinguishes the gearboxes?

From two planetary stages to three: By adding a third planetary stage, a significantly higher overall gear ratio can be achieved without requiring each individual stage to handle a high ratio. In addition, the number of planets per stage is higher: In the first planetary stage, Winergy increases the number of gears from the original four to eight or nine. In a multi-stage planetary gearbox, the load to be transmitted is thus distributed over several gears and stages, reducing the load on individual components. Smaller gear sizes can now be used, which enables a higher power class without increasing the design space. The forces are distributed more effectively through several stages, reducing the load on the bearings and housings. This allows the design to be further optimized. With three stages, planetary gearboxes can often be better modularized and adapted to various design requirements, which optimizes the use of space and thus increases torque density.