Abstract: Equipment for handling drill rods, comprising a slot-like storage space for storing drill rods side by side, a gripping jaw for gripping the drill rod, and a linearly movable displacing arm for displacing the drill rod from the outlet opening of the storage space by a linear movement to the drilling center of the drilling equipment and back. The equipment comprises a closing device positioned in the outlet opening of the storage space and movable in a direction transverse to the direction of movement of the displacing arm. The closing device has two inclined support surfaces facing away from the storage space, and the displacing arm similarly has an outwardly inclined guide surface at its end close to the storage space. On picking up a drill rod from the storage space, the gripping jaw presses the closing device at its support surface inwards so that the drill rod to be picked up is able to push the closing device inwards when the displacing arm is moved.

Abstract: A method, a rock drilling equipment (1) a measuring device (10) for aligning a feeding beam (5) in the rock drilling equipment (1) with a drilling direction. In the method, an angle Sg(g) between the drilling direction (S.sub.p) and a direction (S.sub.t) defined by a fixed point selected as a point of sight (T) is measured and stored in a memory, and the feeding beam (5) is adjusted at the following holes so that it is positioned at an angle .beta. corresponding to the drilling direction (S.sub.p) measured with respect to a direction (S.sub.a) of a carrier (1a) by means of the point of sight (T). The measuring device (10) comprises two mutually turntable discs (11, 12) of which one is positioned to indicate the drilling direction (S.sub.p) and the other is turned in such a way that its measuring line points towards a fixed point serving as a point of sight (T), thus defining a reference line (S.sub.t).

Abstract: An arrangement for handling a drilling equipment comprising clamping jaws (11a, 11b) mounted rotatably with respect to the axis of a drill tube (8a, 8b) and a breaking device (7) mounted rotatably about the axis of the drill tube (8a, 8b) and movably in the longitudinal direction of a feed beam (3), which breaking device can be connected to the drill tube (8a, 8b) or the like unrotatably with respect thereto. To move the drill tube (8a, 8b) or the like to the drilling position and away from it, respectively, the breaking device (7) is mounted turnably about an axis transverse to the longitudinal axis of the feed beam (3), which makes it possible to push the horizontal tube (8b) or the like into the breaking device (7) turned to the direction transverse to the feed beam (3) and to fasten it to the breaking device, after which the tube (8b) can be turned into a drilling center between a rotating mechanism (5) and the previous drill tube (8a) by moving the breaking device (7) along the feed beam (3).