CPC F02B 39/04 (2013.01) [F02B 37/105 (2013.01); F16H 13/14 (2013.01); F16H 13/08 (2013.01)] | 28 Claims |
1. A planetary traction drive comprising:
a sun shaft;
a plurality of planet rollers with outer roller traction surfaces that interface with said sun shaft;
a ring roller assembly comprising:
a ring gear;
a sprung traction ring and a second traction ring located concentrically with said ring gear that interface with slanted inner roller traction surfaces of said plurality of planet rollers;
a preload spring located between said ring gear and said sprung traction ring that provides a preload force on said slanted inner roller traction surfaces of said plurality of planet rollers during assembly and operation of said planetary traction drive;
an anti-rotation mechanism that connects said sprung traction ring and said ring gear such that said sprung traction ring can slide axially on said anti-rotation mechanism wherein said anti-rotation mechanism transmits torque between said sprung traction ring and said ring gear.
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