| 摘要 |
FIELD: drilling and blasting operations in hard rocks, applicable in various branches using blasting operations in hard rocks. ^ SUBSTANCE: the device for localization of components of the blast hole net has a cylinder, bearing rod with a spacer installed in its axis for rotation and a detachable cover. The device is provided with a metal shell with a spider installed in its lower part, a bearing rod is fastened on it, the cylinder in its axis is cut in pieces, which are fastened to the spider by pins. The spacer is made in the form of cams fastened on the bearing rod, flanges for fastening of the power pipe with a pusher and a spring are made opposite them on the cut pieces of the cylinder, and the detachable cover is installed on the shell and provided with a locking component. ^ EFFECT: enhanced reliability of protection of the blast hole net against unauthorized use from the moment of hole charging to the beginning of laying of the surface blast net, enhanced safety of blasting operations. ^ 5 dwg |
