Infinitely variable friction drive - has cone drives with motor shaft angled to hold cone surface parallel to drive plane

摘要

The motor shaft (1) is angled at twice the core angle of the drive cone (F) and drives a friction ring (7) on a central bearing (9). The other end of the bearing has a similar cone drive (E) driving a friction ring (12) on the output shaft. The central bearing is moved laterally by a control to change the gear ratio. The two cone surfaces are set parallel and the bearing is displaced along the parallel planes. No axial adjustment is required and a simple gear ratio control is obtained.