Patent ID: 8584530

Claim:
A wind turbine gearbox test device comprising: a cradle configured to support a gearbox relative to a fixed input shaft to be coupled to the gearbox, the fixed input shaft driven at a predetermined number of revolutions per minute (rpm) to rotationally drive the gearbox during a test procedure; a base configured to mount on a support structure; and load devices interconnected between the cradle and base and configured to input at least one of thrust, radial and yaw loads to the gearbox through the cradle, the load devices including a first set of load devices arranged in a transverse direction relative to a second set of load devices arranged to provide input loads about three axes, the first set of load devices arranged in a vertical direction and the second set of load devices arranged in a horizontal direction; wherein the cradle includes a bottom wall generally parallel with the base, the first set of load devices arranged between the base and the bottom wall; and wherein the base includes spaced apart sidewalls on each of opposing sides and extending vertically from the bottom wall, and the cradle includes an ear on each of the opposing sides and each arranged between a respective pair of the sidewalls, the load devices of the second set provided between the ears and their respective sidewalls.