PROCESS CHANNEL EXTRACTOR FOR GRAPHITE-URANIUM REACTOR Russian patent published in 1997 - IPC

FIELD: type RBMK graphite-uranium reactors. SUBSTANCE: device has channel gripping mechanism, cutting-tool holder, coupled with drive spindle and its axial displacement gear, channel-blast power cylinder, and central rod fixed on one end to blast cylinder an attached through loose end to gripping mechanism case. Extractor is provided with reversing motor for high-speed displacement of cutting-tool holder arranged eccentrically to worm shaft of axial displacement gear and coupled with worm shaft of axial displacement gear of gear transmission through torque-limiting jaw clutch. Drive gear of gear transmission is rigidly coupled with driven half-coupling. Manual drive of vertical displacement gear has two locked positions. EFFECT: improved safety in operation. 10 dwg