FIELD: mining.
SUBSTANCE: main differential peculiarity of the proposed method is in the fact that shock mass lifted to the operating height of the arming accumulates the first derivative of movement in time that immediately turns into acceleration energy dynamic component. It is done under the influence of power pulse independent of energy drive flow, the value of which can be automatically increased within wide range due to instrument embedding. The value of the range is specified by the operator. The other peculiarity is in the fact that this range is additionally extended by the use of balance-beam position battery. ICE percussive mechanism with forced energy and power includes the case inside of which there installed is power-operated bell crank kinematically connected to the tool that consists of the instrument, sliding block, connection rod, the dimensions of which are defined according to one algorithm through eccentricity of bell crank, and two energy batteries - spring mechanical and pneumatic. The peculiarities of the structure are in the fact that the case is rigidly installed in relation to the handle at its end flange - support, ensured by this the control system is made by the difference of dimensions between maximum instrument stroke and the height of its lifting at arming. The instrument has a stepped form with two coaxial centering surfaces installed in two grease boxes. Casing guides are performed in a form of angles, the internal surfaces of which are equipped with welded plates and rib of triangular section. Note that angle shelves are equipped with lateral vertical slots with T-shaped flanges installed in them, with anti-friction strips, with the help of pads, pressure dog fixed with the help of bolts with lateral washers. The lower end of the blank is spherical performed with radius equal to the length from half of the distance between the grease boxes to the instrument shank in clamped condition.
EFFECT: maintaining constant unit pressure at the instrument surface while it moves in the rock, reduction of drive motor energy output ratio, increase of mechanism safety and reduction of production and operation cost.
6 cl, 7 dwg
