MAINTENANCE SYSTEM FOR CRDM NOZZLES OF REACTOR HEAD

摘要

PURPOSE: A maintenance system is provided to improve operation control performance by reducing the sinking and vibration of a manipulator. CONSTITUTION: A cyclic rail part(1) is arranged in the upper end surface of an inner cylindrical body(310). A trolley(2) moves along the cyclic rail part. A multi-joint manipulator(3) is arranged in the trolley. The multi-joint manipulator executes maintenance and repair work of the inner surface of an atomic reactor head. The multi-joint manipulator comprises a link part and a mast. The link part transfers a working tool on a horizontal surface. The mast raises the link part.