Automatic apparatus for handling and screwing bolts

Abstract

Abstract 1. An automatic device for screwing and handling pins and specially pins for fastening the cover of a nuclear reactor vessel comprising pin handling means displaceable along the periphery of the vessel and disposed between the upper edge of the vessel and a circular guide rail (10) placed above the said upper edge, characterized by the fact that the said pin handling means comprise in combination : a main frame (4) comprising an assembly of horizontal guide beams (21, 22) ; an auxiliary frame (5) displaceable horizontally by means of lifting beams (24) co-operating with the above-mentioned horizontal guide beams ; a screwing mechanism comprising a screwing device (40) displaceable vertically relatively to the above-mentioned auxiliary frame ; and a pin gripping mechanism (55) mounted on the auxiliary frame and displaceable jointly with the screwing device.

Inventors

• 👤 Georges Boudet
• 👤 Jean-Claude Desmoulins

Bibliographic Details