Method and arrangement for controlling percussion rock drilling

Details Method and arrangement for controlling percussion rock drilling Method and arrangement for controlling percussion rock drilling

2007-04-03

2007-04-03

Bagnell, David (Department: 3672)

Boring or penetrating the earth

Automatic control

Of advance or applied tool weight

C175S024000, C173S008000, C173S009000, C173S011000

Reexamination Certificate

active

10913365

ABSTRACT:
The invention relates to a rock drilling arrangement and a method and program for controlling rock drilling on the basis of specific energy consumption. The specific energy of drilling is the quantity of energy used per a unit of length of the drilled hole. Not only the used impact energy, but also the energy used by at least one other sub-process is taken into account when determining the specific energy. Rotation energy is typically included, but feeding energy and flushing energy can also be considered. Drilling variables are adjusted so that the specific energy is of a predetermined size.

REFERENCES:
patent: 3971449 (1976-07-01), Nylund et al.
patent: 5348106 (1994-09-01), Mattero
patent: 5358058 (1994-10-01), Edlund et al.
patent: 5771981 (1998-06-01), Briggs et al.
patent: 0112810 (1984-07-01), None
patent: 0825330 (1998-02-01), None

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