Device and method for handling drill string components and drill rig

A method for handling drill string components for a drill rig, the method comprising:

• swinging, with a swing unit comprising a flame, a grip unit into a first position for receiving the drill string components beside the drill rig,
• longitudinally displaces the grip unit through a to and fro moveable slide a longitudinal guide,
• rotating said grip unit with the gripped drill string component with a rotational actuator being operatively connected to the slide and having a rotational axis around an axis of rotation, which forms an angle with a longitudinal axis of the longitudinal axis of the longitudinal guide, the rotational actuator being arranged between the slide and the swing unit;
• and
• swinging the grip unit with the gripped drill string component with the swing unit utilizing a swing joint which interconnects a first link portion of the swing unit being operatively connected to said rotational actuator and comprising a first frame part extending perpendicular to the rotational axis, and a second link portion of the swing unit being operatively connected to the grip unit and including two sideways arranged frame parts and a traversal frame part, such that the swing unit swings the second link portion with respect to the first link portion from the first position lateral to the slide to a second portion utilizing the swing joint portion, thereby arranging the grip unit into the second position for assembling and disassembling of drill string components, wherein the swing joint portion includes a rotation device configured to swing the second link portion with respect to the first link portion.

A drill rig, comprising:

• a linear guide;
• a to and fro displaceable rock drilling machine;
• and
• a device for handling drill string components, the device comprising
• a longitudinal guide,
• a slide displaceably arranged on the longitudinal guide,
• a grip unit being supported by the slide and comprising a rotator unit configured to rotate a gripped drill string component,
• swing unit configured to swing the grip unit between a first position lateral to the slide for receiving and delivering of drill string components beside the drill rig and a second position for assembling and disassembling of drill string components in the drill rig, and a rotational actuator being operatively connected to the slide and having an axis of rotational formation an angle to a longitudinal axis of the longitudinal guide, wherein the rotational actuator is configured to rotate the grip unit and the swing unit,
• wherein the swing unit includes a first link portion which is operatively connected to said rotational actuator, such that the rotational actuator is arranged between the slide and the swing unit, a second link portion, which is operatively connected to the grip unit and a swing joint portion, which interconnects said first link portion and the second link portion for swinging the second link portion with respect to the first link portion,
• wherein the swing joint portion is configured to swing the second link portion and the grip unit with respect to the first link portion from the first position to the second position,
• wherein the first link portion comprises a first frame part extending perpendicular to said rotational axis,
• wherein the second link portion includes two sideways arranged frame parts and a transversal frame part, and
• wherein the swing joint portion includes a rotational device configured to swing the second link portion with respect to the first link portion.