Patent ID: 8109847
Filing Date: 2012-02-07
Classification: F16H

Abstract:
1. A belt-driven conical-pulley transmission comprising: a conical disk pair on a power input side and on a power output side, each disk pair including an axially fixed disk and an axially displaceable disk, wherein the disk pairs are positioned on respective input side and output side shafts and each axially displaceable disk includes an annular hub that surrounds the associated shaft; an endless torque transmitting member extending between and interconnecting the input side and output side disk pairs for transmitting torque therebetween; and at least one stop adjacent to an axial end of the annular hub of at least one axially displaceable disk and spaced axially inwardly of the axial end, the stop including an elastically deformable damping ring positioned between a radially-inwardly-extending surface of the annular hub of the at least one axially displaceable disk and an axially spaced radially-extending surface of an associated shaft that carries the at least one axially displaceable disk, wherein the radially-inwardly-extending surface of the annular hub of the at least one axially displaceable disk extends inwardly toward the longitudinal axis of the associated shaft and is positioned axially inwardly of the axial end of the annular hub of the at least one axially displaceable disk, wherein the axially spaced radially-extending surface of the associated shaft extends radially inwardly from an outer surface of the shaft toward the longitudinal axis of the associated shaft to form a radial wall of an annular groove in the shaft, wherein the elastically deformable damping ring is received in the annular groove and between the radially-inwardly-extending surface of the shaft and the radially-inwardly-extending surface of the annular hub of the at least one axially displaceable disk to provide an axially-deformable cushioned retarding component for automatically retarding axial movement of the at least one axially displaceable disk and for minimizing axially-acting disk impact loads imposed by the at least one axially displaceable disk against the at least one stop, wherein the damping ring is a multiple-element component.