Patent ID: 9677659
Date: 2017-06-13
CPC Classifications: F01D,F02C,F02K,F05D,F16C,F16F,F16H

Claim:
1. A planet gearbox for connection to a carrier of an epicyclic gearing arrangement that has only a single input and a single output and that includes a sun gear and a ring gear surrounding the planet gearbox and the sun gear, the planet gearbox comprising: a support pin is configured to be fixed to the carrier, the support pin is a hollow body that is defined by a cylindrical outer surface that is radially equidistant from a virtual central axis that extends in an axial direction, the support pin is further defined by an inner surface disposed opposite the cylindrical outer surface; an inner ring is non-rotatably connected to the support pin and defines an inner surface opposed to the outer surface of the support pin, the inner ring defining an outer surface that defines at least one track, each track defined in the outer surface being configured to receive and rotatably guide therein a respective plurality of cylindrical rollers; an outer ring defines an inner cylindrical surface that is disposed facing toward the at least one track, the outer ring defining an outer cylindrical surface that is disposed facing toward the ring gear; a respective plurality of cylindrical rollers rotatably disposed within each respective track of the inner ring, and each of the plurality of rollers rotatably contacting the inner cylindrical surface of the outer ring; and a planet gear is non-rotatably connected to the outer ring and defines an inner surface opposed to the outer surface of the outer ring, the planet gear defining an outer surface that defines a gear tooth surface that is configured to mesh with both the sun gear and the ring gear; and an attenuation spring disposed between the outer surface of the outer ring and the inner surface of the planet gear.