E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/00 (2006.01) E21B 19/14 (2006.01) E21B 19/18 (2006.01) E21B 19/20 (2006.01)
Patent
CA 2727856
The invention relates to a drill bit magazine, drill bit hold-er, and method for changing a drill bit in a rock drilling unit. The maga-zine (16) has several spaces (30), each arranged to receive one drill bit holder (22). The drill bit (12) is supported into the magazine by means of the drill bit holder. In addition, transfers between the magazine and retain-er (14) take place by acting on the drill bit holder only. The drill bit holder is a projecting piece that is supported against at least one inside surface (41 ) of the drill bit.
L'invention concerne un magasin de trépans, un support de trépan, et un procédé pour changer le trépan dans une unité de perforation de rochers. Le magasin (16) comprend plusieurs espaces (30) qui sont chacun agencés de manière à recevoir un support de trépan (22). Le trépan (12) est supporté dans le magasin au moyen du support de trépan. En outre, des transferts entre le magasin et un dispositif de retenue (14) sont effectués en agissant sur le support de trépan uniquement. Le support de trépan est une pièce saillante qui est supportée contre au moins une surface intérieure (41) du trépan.
Siltala Hannu
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Sandvik Mining And Construction Oy
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