Breaking-down effected by force or pressure applied to side of slit, e.g. by wedges (E21C27/14)

E   Fixed constructions(158735)
E21C     ining or quarrying(17294)
E21C27/14                     Breaking-down effected by force or pressure applied to side of slit, e.g. by wedges (breaking-down by means inserted in boreholes e21c0037000000)(31)

ethod of production by impact cutting and impact cutting loading machine for method implementation // 2563467
FIELD: oil and gas industry.SUBSTANCE: impact guiding part is installed. Two ends of the impact guiding part are fitted with impact heads or one end of the impact guiding part is fitted with the impact head, and another end is fitted with the counterbalance. The impact guiding part is installed in the guiding device, the power impact part is installed. The power impact part is installed in the impact actuating unit. The guiding device and the impact actuating unit are integrated with formation of the reciprocating impact part; the power impact part puts the impact guiding part into reciprocating movement. The impact guiding part puts in action impact heads / impact head for impact effect on a coal or rock wall for material crushing; the frame is installed. The frame is fitted or not fitted with the lifting device. The reciprocating impact part is installed on the frame or on the lifting device; the frame is installed on the housing of the machine, or the frame and the lifting device are integrated and installed on the machine housing, the mobile part is installed. The mobile part is installed in the lower part of the machine housing. The mobile part puts the machine housing in motion; the machine housing supports impact heads / impact head for impact effect in a reciprocating manner for material crushing. The impact cutting loading machine contains: the machine housing, the mobile part and the reciprocating impact part. The reciprocating impact part contains the guiding device and the impact actuating unit. The guiding device contains the impact guiding part; meanwhile the reciprocating impact part also contains the impact head, two ends of the impact guiding part have impact heads, or one end of the impact guiding part has the impact head, and another end has the counterbalance; and the impact actuating unit contains the power impact part; the power impact part puts in action impact heads / impact head for execution of reciprocating motion; the impact guiding part puts in action impact heads / impact head for impact effect on a coal or rock wall with material crushing. The machine housing contains a frame and has or has no lifting device, and the reciprocating impact part is installed on the frame; or, when the machine housing has a lifting device, the reciprocating impact part is installed on the lifting device. The lifting device is installed on the frame, and the mobile part is installed in the lower part of the machine housing and puts in motion the machine housing.EFFECT: mining efficiency improvement.29 cl, 128 dwg

Shuttle coal cutter machine // 2467167
FIELD: mining.SUBSTANCE: invention relates to rock cutters and is intended for mechanisation of mining. Proposed machine comprises body, control board, hydraulic tools, motor and reduction gearboxes. It is provided with two cutting shafts and two cutting chains engaging gear wheels of reduction gearbox output shafts with those of actuator cutting shafts. Machine body is composed of two identical parts made of solid metal sheets with recesses to receive bearings of actuator shafts. Said shafts support cutoff cutters arranged 0.15 m one from another perpendicular to cutting shaft axes. Note here that every cutter is locked on shaft by key and is composed of two halves locked on shaft by steel plates and bolts. Additional cutters are welded to every tooth of cutter on both sides at 30 to each other. Lengths of cutting chains are welded between planes of cutters over cutting shaft length. Hydraulic tools represent a cabinet provided with tube lengths welded thereto to receive hydraulic jacks fitted therein with rods provided with hydraulic wedges welded thereto to fit in coal slots made by working cutters.EFFECT: simplified design, better coal quality.4 cl, 4 dwg
 
2550992.
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