Planetary gear set
AssigneeOrbital2 Limited
InventorsFrank Cunliffe, Raymond John Hicks
Life of this patent
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Abstract
The present epicyclic gear includes a carrier (12), a generally central sun gear (11), an outer annular gear (13) and an intermediary helical planet gear (14) which is mounted on the carrier (12) by a flexible pin assembly (15). The gear further includes a reaction member in the form of a rolling ring (22) at each axial end of the helical planet gear (14) to provide a respective radially inward reaction load onto the planet gear (14) in a sense that the reaction members (22) together resist a twisting moment on the planet gear (14) arising from the tooth loads on that gear.
Claims6
A gear having a carrier, a generally central sun gear mountable on a shaft, an outer annular gear and an intermediary helical planet gear mounted on the carrier by a flexible pin assembly characterised in that the gear further includes a reaction member in the form of a rolling ring at each end of the helical planet gear for each reaction member to provide a respective radially inward reaction load onto the planet gear in a sense together resist a twisting moment on the planet gear arising from the tooth loads on the helical gear.
Dependencies are inferred from the claim text.