TUBE COLLET GRIPPER Russian patent published in 2013 - IPC B66C1/54 G21C3/00 

FIELD: transport.

SUBSTANCE: invention relates to nuclear machine building, particularly, to equipment intended for dismantling radioactive structures, for example, tubes. Device comprises cylindrical body with central bore wherein slide with groove may displace. Said slide is furnished with bearing plate fitted on axle to transfer device gravity force to bearing cable on resting upon body bore inner face surface, and bearing axle fitted in slide groove. Slide is fitted on thread of conical rod interacting with lugs of collet fitting. Outer surfaces of said lugs are provided with tenons that come in contact with tube outer surface. Device includes inclined guide cone that enters the tube to allow its vertical arrangement. With tube put on end face and loose cable, bearing plate turns to release the slide. Device upward displacement makes lugs press against tube inner walls to allows displacement jointly with the tube.

EFFECT: simplified design, higher reliability.

2 dwg