Epicyclic transmission having cam driven roller retainer
AssigneeAdvanced Energy Concepts '81 Ltd.
InventorRobert G. Distin, Jr.
Life of this patent
Estimating the term…
Abstract
An epicyclic speed reducing transmission having first and second sets of conjugate epitrochoidal and hypotrochoidal races and first and second sets of rollers transmitting torque between respective sets of races includes a retainer structure for the first and second sets of rollers. The retainer structure is apertured so as to receive the rollers, and independent retainer elements for each set of rollers are provided, with both of these elements being conjointly orbitally driven. The retainer structure may be positively orbitally driven by means of a cam driven spider provided either centrally of or externally of the pair of epitrochoidal races.
Claims17
In an epicyclic speed reducing transmission of the type employing gear members having opposed gear surfaces with a plurality of rollers in rolling engagement with and transmitting torque between the same, the improvement comprising retainer means directly guiding said rollers, and cam means for orbitally driving said retainer means while said retainer means maintains said rollers in a circular array, said cam means being centered at the center of the circle defined by said rollers.
In an epicyclic speed reducing transmission of the type employing opposed gear surfaces with a plurality of rollers in rolling engagement with and transmitting torque between the same, the improvement comprising retainer means for guiding said rollers, said retainer means including a pair of roller retainers and means for joining said roller retainers for conjoint orbital and independent rotary motion.
Dependencies are inferred from the claim text.