MANUAL TWO-SPEED DRIVE FOR MULTI-PURPOSE ACCESSORIES Russian patent published in 2011 - IPC F16K31/53 

FIELD: machine building.

SUBSTANCE: two-speed manual drive consists of planetary mechanism, of central switching shaft, of central switching shaft position arrester and of adaptor. The planetary mechanism is positioned in a case. The central shaft is connected to a flywheel. The adaptor transmits torque from the drive to an actuating mechanism of multi-purpose accessories. The central switching shaft travels axially to two end positions, its travels are limited with arresters. The central switching mechanism transmits torque directly to the actuator of the multi-purpose accessories or via the planetary mechanism.

EFFECT: increased fast action at speed change and increased reliability of drive.

1 dwg