Machine element or mechanism – Gearing – Interchangeably locked
Patent
1995-06-06
1997-08-05
Marmor, Charles A
Machine element or mechanism
Gearing
Interchangeably locked
74333, 74339, 74340, 74341, F16H 330
Patent
active
056531435
ABSTRACT:
A variable ratio transmission system for coupling a load to a source of rotational power includes a selector shaft having a selector gear axially movable on a fork dolly by an actuator including a lead screw, and a control motor; an inclined cluster shaft having a plurality N of spur gears rotatably supported thereon for being selectively meshed with the selector gear, at least N-1 of the spur gears being variably coupled to the cluster shaft by a one-way clutch for rotation therewith; and a controller for activating the actuator while preventing substantial torque-loading of any of the spur gears unless that spur gear is substantially meshed with the selector gear, the controller comparing a set of operating conditions of the power source with a predetermined operating envelope, and activating the actuator for bringing the set of operating conditions within the operating envelope, the operating conditions including an input operating speed and a set point variable that can be throttle position, torque, power, applied voltage, applied current, modulation duty cycle, or acceleration, the controller being operative for interrupting power from the source for only approximately 0.01 second.
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Grabow Troy
Marmor Charles A
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