TOOL FOR EXTRACTING PROCESS CHANNEL FROM URANIUM-GRAPHITE REACTORS Russian patent published in 1997 - IPC

FIELD: nuclear reactors. SUBSTANCE: device has ball-type channel gripping mechanism with cylindrical-conical disk axially displacing in hollow case, cutting tool holder connected to drive spindle and its axial displacement mechanism, power cylinder for channel demolishing, and central rod fixed on one end to demolishing cylinder. Device is provided with stop mounted on cutting tool and spring-loaded thereon in tangential direction. Loose end of central rod is attached to ball- type gripping mechanism case and inner space of the latter houses guide trunnion concentrically mounted therein, kinematically coupled with cutting tool holder, and carrying axially displacing cylindrical-conical disk spring-loaded in axial direction relative to trunnion. EFFECT: improved design. 4 cl, 10 dwg