E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/12 (2006.01) E21B 10/20 (2006.01) E21C 25/18 (2006.01) E21D 9/10 (2006.01)
Patent
CA 2079893
Ring clamp for securing of a cutter ring to a cutter roll in a tunnel drilling machine, the cutter ring comprising at least two segments having a dovetail shaped basis and the ring clamp (3) having a corresponding wedge shape and also comprising at least two segments (3A, 3B, 3C) whereby the segments are secured to the roll by means of bolts (4), CHARACTERIZED IN the inner radius (R) of the segments (3A, 3B, 3C) being different from the radius (r) in the groove (5) in which the segments of the ring clamp are secured.
Un anneau de serrage servant à fixer une bague coupante à un rouleau coupant dans une machine à forer des tunnels, la bague coupante comprenant au moins deux segments ayant une base en forme de queue d'aronde. L'anneau de serrage (3) a un profil d'insertion en queue d'aronde et comprend aussi au moins deux segments (3A, 3B, 3C) qui sont fixés au rouleau à l'aide de boulons (4). L'invention est caractérisée par le fait que le rayon interne (R) des segements (3A, 3B, 3C) est différent du rayon (r) de la rainure (5) dans laquelle les segments de l'anneau de serrage sont fixés.
Shapiro Cohen
Stein Narvestad A/s
LandOfFree
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