METHOD AND DEVICE FOR SELF-BRAKING OF ROTOR

摘要

PURPOSE:To provide self-braking within a low range of reductive gear ratio by interposing meshingly a gear for load free to swing and rotate between the major dia. cogged part of a differential planet gear with its minor dia. cogged part meshing with a sun gear and a central idling gear loosely fitted on a main shaft. CONSTITUTION:With an arm rod 50 interposed, a gear for load 24 is by any means arranged freely to swing and rotate between the major dia. cogged part 18 of a differential planet gear 16 with its minor dia. cogged part 17 meshing with the cogged part 19 of a sun gear 12 and a central idling gear 20 loosely fitted on a main shaft 11. When this gear for load 24 is meshed with the central idling gear 20 and the major dia. gear 18 of the differential planet gear 16 using a cable for load 27, it is going to rotate the major dia. cogged part 18 in the direction of load while the differential planet gear 16 is going to run in the direction opposite to the load with the meshing point with the sun gear 12 as the starting point so as to confront with the load, and self-braking applies at a certain specified point on the radius on the load side of the sun gear 12, and the differential planet gear 16 is braked from running. Thus the load itself can apply brakes to rotor even within a low range of reductive gear ratio.