Atlas Copco Rock Drills Ab

Atlas Copco Drilling Solutions, LLC

Epiroc Rock Drills Aktiebolag

Epiroc Drilling Solutions, LLC

Deyi Jiao

Jonas Sinnerstad

Eugene Cheng

Per Krainer

Marcus Leü

Hans Gustavsson

Marcus Leu

A hydraulic fluid control system for controlling pressure fluid supplied to consumers () of a rock drilling machine, a regulating valve () for each for each consumer and fluid conduits between the regulating valves and the consumers, an electronically controlled auxiliary control unit () having an electrically controlled auxiliary valve () for connection to a fluid conduit, a sensor for sensing fluid parameter values and sending sensor signals to the auxiliary control unit as sensor input signal actual values, micro-controller () having at least one parameter sensor input signal entry (S-S, I-I) for receiving the sensor input signal actual values and a control signal exit (V-V) for signal control of an auxiliary valve, the processor () is being arranged to compare the actual and predetermined values and to emit control signals to an auxiliary valve in response to the comparison to adjust fluid flow.

Control system, rock drill rig and control method

An arrangement in a rock drill righas an inlet valvearranged upstream from a displacement compressorthat is used for supplying an air flowto at least one flushing holein the surface of a drill bit. The rock drill rigalso has an air regulatorarranged to regulate the system pressure in the air flow pathdownstream from the compressor and a detector for detecting air flow through the at least one flushing holein the surface of the drill bit. The detector has a pressure sensor, arranged between the air regulatorand the inlet valve, for measuring the reduced system pressure.

Arrangement and a method for monitoring an air flow in a drill rig

A method and a device for controlling a drill rig () which includes a carrier vehicle with at least one feed-beam (), wherein a drill machine () is movable to-and-fro, wherein rig parameters are set by a control unit () and wherein each one of a plurality of operating modes (M-M) includes specified operating settings for different operating parameters of the rig. Each operating mode (M-M) is selectable such that operation of the rig is related to a particular type of rock, in which drilling is to be performed, and each operating mode (M-M) includes operating settings that are adapted to the prevailing type of rock. The invention also concerns a drill rig.

Method and device for controlling a rock drill rig

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Plano, TX, United States of America

Deyi Jiao