Abstract: Control equipment for guiding a drill rod. The control equipment including a frame and two guide jaws provided with guide surfaces and mounted movably in relation to the frame. The drill rod is set between the guide jaws during drilling. Actuators move the guide jaws in relation to the drill rod. Synchronization means are coupled between the guide jaws, such that the guide jaws always move in opposite directions to one another and at the same speed. A detector detects that the guide surfaces of the guide jaws are in contact with the drill rod.

Abstract: Control equipment for guiding a drill rod. The control equipment including a frame and two guide jaws provided with guide surfaces and mounted movably in relation to the frame. The drill rod is set between the guide jaws during drilling. Actuators move the guide jaws in relation to the drill rod. Synchronization means are coupled between the guide jaws, such that the guide jaws always move in opposite directions to one another and at the same speed. A detector detects that the guide surfaces of the guide jaws are in contact with the drill rod.

Abstract: The invention relates to a feed apparatus for feeding capsular cartridges into a drilled hole, the apparatus being intended to be used in conjunction with a rock drill apparatus. The feed apparatus comprises a rotatable roll-like cartridge magazine (1) with charge tubes (2) which are arranged on at least one perimeter and into which the capsular cartridges can be loaded in advance. The apparatus further comprises means for indexing a magazine, whereby the desired charge tubes (2) can be rotated to align with the feeding line. In an embodiment of the invention the feed is performed by feeding pressure air into the rear end of the charge tube at a high pressure, whereby the cartridge loaded into the charge tube moves from the charge tube to a connecting pipe (7) positioned at the firing line at the front end of the cartridge magazine and further along a feed hose 86) to a hole drilled in advance. The apparatus can also comprise a control apparatus for automatic control of the feed apparatus from the cabin.

Abstract: A feeding device for a rock drilling machine (3) comprising a cradle (1); and a feeding beam (2) mounted longitudinally displaceably with respect to the cradle (1), the drilling machine (3) being displaceable along the feeding beam. Displacing means comprise a chain (6) forming a closed loop, being arranged to move around turning wheels (4, 5) provided at both ends of the feeding beam (2), and connected stationary with respect to the drilling machine (3). The drilling machine (3) is arranged to be connected stationary with respect to the feeding beam (2) over its whole range of movement relative to the feeding beam (2) and the feeding beam (2) with respect to the cradle (1) over its whole range of movement relative to the cradle (1).

Abstract: A method of and an arrangement for controlling rock drilling when a feeding beam (3) is displaced so that the forward end thereof makes contact with a rock surface to be drilled. The arrangement comprises a displacing device for displacing the feeding beam in the longitudinal direction thereof and a control device for controlling the operation of the displacing device. The control means comprise a control element which is mounted at the forward end of the feeding beam (3) so that when the feeding beam is displaced in the longitudinal direction, the control element is the first to make contact with the rock surface. The control element is connected to stop the operation of the displacing device of the feeding beam (3) when it hits the rock surface.

Abstract: A mechanism for reversing the direction of rotation in a drilling apparatus comprising a feeding beam (1) and a drilling machine (3) supported by the beam for longitudinal movement back and forth along the beam in a drilling direction (A) and an opposite return direction (B) by a feeding mechanism (4). The drilling machine is provided with a pressure medium driven rotating device (9) for rotating a drilling rod and with a reversing valve (13) connected to the pressure medium system of the rotating device. The reversing valve is provided with a spindle rotatable between two positions in which the rotating device rotates the drilling rod in opposite directions. The reversing mechanism comprises two actuating elements (24,27) rotatable with respect to each other. One element (24) is in rotational engagement with the spindle and is moved axially together with the spindle at least at the end of the return direction of the drilling machine.