Integrated drilling and rock bolting apparatus

Details Integrated drilling and rock bolting apparatus Integrated drilling and rock bolting apparatus

E - Fixed Constructions

21

D

E21D 21/00 (2006.01) E21B 7/00 (2006.01) E21B 10/44 (2006.01) E21D 20/00 (2006.01)

Patent

CA 2160379

The invention relates to an integrated drilling and rock bolting apparatus (1) consisting of a bolt member (2) and a drilling element located at one end of the bolt which is connectable at its opposite end to rotational drive means. A fracturable section connecting the bolt to the drilling element (3) which is operable in a drilling mode to prevent axial displacement between the bolt and the drilling element whereby on conjoined rotation of the bolt and drilling element the drilling element is adapted to have a hole in a substrate. The connection means (8) being subsequently operable in an anchoring mode to break the fracturable section in response to axial impact and permit axial displacement between the bolt and the drilling element and expanding locking means (11, 12, 13) associated with the drilling element to secure the bolt within the hole.

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