Tool driving or impacting – With indicating or signaling means
Patent
1987-06-26
1989-08-22
Yost, Frank T.
Tool driving or impacting
With indicating or signaling means
173 43, E21B 702
Patent
active
048587001
ABSTRACT:
Disclosed is an articulated apparatus for positioning a rock drill comprising a self-propelled vehicle having a chassis propelled by endless tracks, a carriage for carrying an engine for driving the tracks, and a rotary drive for power actuated rotation of the carriage relative to said chassis through a full 360.degree. about an upright first axis. A boom is mounted with one end at the carriage for power actuated pivoting thereon about a second axis perpendicular to the upright first axis. An arm is carried by another end of the boom for power actuated pivoting thereon about a third axis parallel with the second axis. A feedshell is provided for guiding and reciprocating a rock drill toward and away from a drill point entry location adjacent to one end of the feedshell. The feedshell is mounted at the distal end of the arm by a feedshell pivot member for power actuated pivoting of the feedshell about a fourth axis parallel with the second and third axes, and for power actuated pivoting of the feedshell about a fifth axis to tilt the feedshell in a plane perpendicular to a plane defined by articulation of the boom and the arm, the fifth axis being perpendicular to the second, third and fourth axes.
REFERENCES:
patent: 3481409 (1969-12-01), Westerlund
patent: 3565184 (1971-02-01), Gustafsson
patent: 3721304 (1973-03-01), Hanson
patent: 3823902 (1974-07-01), Bumueller
patent: 3922017 (1975-11-01), Cobb
patent: 4199033 (1980-04-01), Van Gundy, Jr.
patent: 4288056 (1981-09-01), Bergstrom
Brochure on Komatsu PC120-3 Hydraulic Elevator.
Brochure on Atlas Copco ROC 820H All-Hydraulic Production Drill Rig.
Brochure on LeRoi Lion I Hydraulic Crawler Rig.
Wolfe James L.
Yost Frank T.
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