FIELD: mining industry.
SUBSTANCE: device has pipe catcher with inserts and wedges mounted in their slanting grooves, interacting with drive via sub-rotor ring with grooves, supports with holders and guiding boards connected to the latter by fingers, and positioned in through aperture of rotor table. Outer surfaces of guiding boards are made circular and mounted with possible interaction with walls of through aperture of table of rotor. Second portion of guiding boards is made with T-shaped head, connecting fingers of which for connection to holders are provided with spring-loaded holders. Distance between adjacent guiding boards below T-shaped heads is greater than width of wedges, lower portion of guiding boards is made with shelves on inside surfaces, and walls of grooves in sub-rotor ring - with responding recesses.
EFFECT: higher reliability, higher personnel safety, higher serviceability, increased load capacity.
4 cl, 14 dwg
