Drilling control apparatus of rock drill
AssigneeFurukawa Co., Ltd.
InventorsKazuya Goto, Masashi Yanagisawa, Toshihiko Gomi
Life of this patent
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Abstract
A drilling control apparatus for automatically controlling the drilling operation of a rock drill includes a control unit for storing known criteria drilling patterns for various rock properties. A specific drilling pattern is selected based upon a collaring procedure for operation of the rock drill. A detector continually monitors variables such as rotational pressure, feed pressure and flushing pressure during the drilling process to determine a change in condition of the rock for determination of automatic selection of another more appropriate drilling pattern.
Claims9
A drilling control apparatus of a rock drill having a first drill rod comprising:
- detection means for detecting an operating condition of an impacting mechanism, a rotating mechanism, a feed mechanism, and a flushing mechanism of the rock drill mounted movably forward and backward on a guide shell;
- a control unit for controlling a drilling operation of the rock drill by storing required drilling data and by judging a drilling condition on the basis of detection data from said detection means;
- and
- a rod exchange device for adding a second drill rod when a length of a hole to be drilled is longer than a length of the first rod, thereby to enable to drill a hole automatically to a predetermined depth even when the predetermined depth is larger than the first drill rod.
A drilling control apparatus for a rock drill having a bit at one end of a drill rod for drilling into a rock, the apparatus comprising:
- means for continually monitoring the operating condition of the rock drill;
- means for adjusting the operation of the rock drill;
- means for detecting an arrival position of the rock when the bit first communicates with the rock;
- means for determining the presence of an abnormality in the drilling operation;
- and
- means for adding drilling length to the drill rod.
Dependencies are inferred from the claim text.