Rock cutting assembly

Details Rock cutting assembly Rock cutting assembly

1986-06-09

1988-04-12

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Tooth mounted on helical head portion or head with helical...

125 5, 175343, 175350, 409200, 409236, E21B 1008, E21B 1010

Patent

active

047369876

ABSTRACT:
A rock cutting assembly which includes a rock cutting roller with the roller being composed of a central hub portion and an annular cutting element which is rotatably mounted on the hub and carries rock cutting formations, means for driving the hub portion of the roller about an axis which is eccentrically displaced from the hub axis, means engaged with the annular cutting element to limit its direction of rotation relatively to that of its hub to one direction only and means for balancing the roller against its eccentricity as the hub is rotated about its drive axis. Preferably the assembly includes a plurality of rock cutting rollers which are rotatable about a common drive axis with the axes of each roller hub being eccentrically displaced by a common distance and in such a direction from the drive axis so that the rollers balance each other as the rollers are rotated about their drive axis.

REFERENCES:
patent: 3374034 (1968-03-01), Conner
patent: 3412816 (1968-11-01), Lautsch
patent: 3860292 (1975-01-01), Bechem

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