Patent ID: 8591368

Claim:
A drive system for a wind turbine, including: a gear unit including at least one planetary gear stage having a ring gear, a plurality of planetary gears, a planetary gear carrier and a sun gear, a first shaft associated with the gear unit and supported via the planetary gear carrier, the first shaft having a coupling flange configured for connection to a shaft of a working machine or a rotor, a gearbox housing enclosing the gear unit and a motor unit or a generator unit connected to a second shaft of the gear unit, a rotor of the motor unit or generator unit, wherein the rotor is non-rotatably connected to a hollow rotor shaft which is axially spaced apart from the second shaft of the gear unit, an electrically isolating, detachable flange connection disposed between the hollow rotor shaft and the second shaft of the gear unit, with a gear-side end of the flange connection being connected to a hollow gear shaft, a motor-side or generator-side end section of the second shaft of the gear unit being concentrically enclosed by the hollow gear shaft and connected to the hollow gear shaft via a coupling or clamping connection disposed inside the hollow gear shaft, and a gearbox stub disposed between the gear unit and the motor unit or generator unit and concentrically enclosing a gear-side end section of the hollow gear shaft and forming a bearing seat for a bearing arrangement associated with the second shaft of the gear unit, with the bearing arrangement also supporting the hollow rotor shaft.