Fan drive planetary gear system integrated carrier and torque frame

摘要

A fan gear drive system includes a torque frame having a base with integrated gear shafts circumferentially spaced relative to one another. A fan shaft is integrated with the base, such that the torque frame provides rotational output from the fan gear drive system. Each shaft provides a shaft axis. A bearing assembly is mounted on each of the gear shafts and provides a bearing assembly. The bearing assembly includes a spherical bearing configured to permit angular movement of the bearing axis relative to the shaft axis.

主权项

1. A fan gear drive system comprising:
a torque frame comprising a base with integrated gear shafts circumferentially spaced relative to one another, a fan shaft integrated with the base, and each shaft providing a shaft axis; a bearing assembly mounted concentrically on each of the gear shafts and providing a bearing axis, the bearing assembly including a spherical bearing supported on the gear shaft and configured to permit angular movement of the bearing axis relative to the gear shaft axis, and a race mounted on the spherical bearing; and a gear supported for rotation about the bearing axis on a non-meshing support interface provided solely by the race, the gear configured to slidingly rotate on and about the race.