TELESKOPIC FEEDING BEAM FOR DRILLING MACHINE Russian patent published in 2008 - IPC E21B19/86 

FIELD: mining.

SUBSTANCE: invention relates to the mining industry, namely to the telescopic feeding beam for the drilling machine. The feeding beam is composed of the upper and the lower parallel beams arranged one above the other so that the drilling machine can travel in the upper beam in its longitudinal direction; the first transfer cylinder is located so as to provide interaction between the upper and lower beams that is to provide the movement the beams relative to each other; the cross section of the lower beam is provided with a sulcate recess in the bottom and the first transfer cylinder is mounted in the space between the upper and the lower beams in such a way that it is protected against material falling down at the top and the sides of the feeding beam and against impacts. The feeding beam is also provided with a cradle connected with the lower beam so that it can slide relative to the latter; the second transfer cylinder is arranged so that the cradle and the lower beam can move relative to each other. The feeding beam has a connecting piece connected with the lower beam. One end of the first transfer cylinder is connected with the upper beam and the second end - with the connecting piece; accordingly one end of the second transfer cylinder is connected with the connecting piece and the other end - with the cradle.

EFFECT: quick and simple servicing to minimise time losses of the drilling rig during drilling operations in parent materials.

2 cl, 4 dwg