Atlas Copco Rock Drills Ab

Epiroc Rock Drills Aktiebolag

Atlas Copco Drilling Solutions, LLC

Epiroc Drilling Solutions, LLC

Hans Gustavsson

Jan Olsson

Fredrik Öberg

Jonas Sinnerstad

Morgan Kanflod

René Deutsch

Deyi Jiao

Martin Ekefalk

Eugene Cheng

Tommy Persson

Tapio Toivonen

Niclas Örjas

Göran Sjöstedt

Björn Anders Larsson

Per Tingö

Arne Hildingsson

Bertil Planeskog

Peter Bray

A rig adapted for rock bolting comprising a feeding magazine is provided. The feeding magazine comprises a holding structure for bolts and is arranged in conjunction with a rock reinforcement unit. The rig further comprises a feeding device that is arranged to provide the rock reinforcement unit with bolts from the feeding magazine. The rig further comprises a loading magazine comprising a holding structure for bolts, as well as a, relative to the feeding magazine and the loading magazine, moveable picking device arranged to move bolts that are located in the loading magazine such that they are accessible to the feeding device.

Rock bolting rig and method at rock bolting rig

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

The present invention is related to a method for manual installation of rock bolts expandable by means of a pressure media comprising manual coupling of a pressure source to a rock bolt to be expanded. The method comprises the steps of an operator starting a sequence whereby the rock bolt is pressurized to a predetermined pressure, and it being ensured that the predetermined pressure is kept for a predetermined period of time. The present invention is also related to such a control system, and an apparatus comprising such a control system.

Controlled expansion of rock bolt

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Örebro, Sweden

Hans Gustavsson