DISPOSITIF POUR MANIPULER LES ELEMENTS CONSTITUTIFS DU COEUR D'UN REACTEUR

DANS CE DISPOSITIF, LE MECANISME D'ENTRAINEMENT D'UNE BARRE DE COMMANDE COMPORTE DES ORGANES DE PREHENSION 87 PORTANT DES CROCHETS RENTRANTS ET SAILLANTS ENGRENANT AVEC UNE TETE DE MANIPULATION DE LA BARRE DE COMMANDE ET AVEC UNE TETE DE MANIPULATION DE CHAQUE ELEMENT CONSTITUTIF DU COEUR DU REACTEUR, UNE TETE DE MANOEUVRE 92 OUVRANT ET FERMANT LES ORGANES DE PREHENSION, UN MECANISME D'ENTRAINEMENT 71, 73 DEPLACANT LONGITUDINALEMENT LA TETE 92, UN SUPPORT DE LEVAGE 65 SUPPORTANT LEDIT MECANISME DE LEVAGE ET LES ORGANES DE PREHENSION, UN MECANISME DE LEVAGE 60, 61, 62 ENTRAINANT LONGITUDINALEMENT LE SUPPORT 65, UN SUPPORT DE LEVAGE 54 SUPPORTANT LE MECANISME DE LEVAGE 60, 61, 62 ET LE SUPPORT 65, UN MECANISME DE LEVAGE 50, 51, 52 ENTRAINANT LONGITUDINALEMENT LE SUPPORT DE LEVAGE 54 ET UN SUPPORT 40 RACCORDANT LE DERNIER MECANISME A BOUCHON ROTATIF DU COEUR DU REACTEUR.APPLICATION NOTAMMENT AUX REACTEURS SURREGENERATEURS RAPIDES. The present invention provides an apparatus for handling core constituent elements of a reactor that comprises a core having as core constituent elements control rod assemblies each containing a control rod and fuel assemblies each containing nuclear fuel, a small rotating plug rotatably provided on the core, and a control rod drive mechanism provided on the small rotating plug, the control rod drive mechanism being characterized by comprising a plurality of grippers each having a hook projecting inwards so as to be able to engage with a handling head of the control rod and a hook projecting outwards so as to be able to engage with a handling head of each of the core constituent elements as a distance in the longitudinal direction; an operational head for opening and closing the grippers; and a third elevating drive mechanism for vertically driving the operational head; a second elevating frame for supporting the third elevating drive mechanism and the grippers; a second elevating drive mechanism for vertically driving the second elevating frame; a first elevating frame for supporting the second elevating drive mechanism and the second elevating frame; a first elevating drive mechanism for vertically driving the first elevating frame; and a frame which supports the first elevating drive mechansim and is provided on the small rotating plug.