Patent ID: 9151275
Filing Date: 2015-10-06
Classification: F03D,F05B,F05C,F16H,Y02E

Abstract:
1. A drive system for a wind turbine, comprising a transmission unit comprising at least one planetary gear stage which has a ring gear, a plurality of planetary gears, a planetary carrier and a sun gear, a first shaft which is associated with the transmission unit and has a coupling flange configured for connection to a work machine shaft or a rotor shaft, and which is supported by the planetary carrier, a gearbox housing enclosing the transmission unit as well as a motor or a generator unit, wherein the motor or generator unit is connected to a second shaft of the transmission unit, a rotor of the motor or generator unit which is connected in a rotatably fixed manner to the rotor shaft constructed as a hollow rotor shaft, a coupling or clamping connection arranged radially between the second shaft of the transmission unit and the hollow rotor shaft, a gearbox housing support arranged between transmission unit and the motor or generator unit and having a hollow cylindrical extension which concentrically encloses a motor-side or generator-side end section of the second shaft of the transmission unit and forms a bearing seat for a bearing arrangement radially disposed between the second shaft and the hollow cylindrical extension, wherein the rotor and the hollow rotor shaft concentrically enclose the hollow cylindrical extension, and at least one outer bearing element of the bearing arrangement which is connected to the hollow cylindrical extension, with the bearing arrangement supporting both the second shaft of the transmission unit and the hollow rotor shaft, wherein the first shaft of the transmission unit is a gearbox-side drive shaft and the second shaft of the transmission unit is a gearbox-side output shaft, with the coupling flange of the gearbox-side drive shaft being connected to the rotor shaft.