| 摘要 |
The specification describes a mining machine, in particular slot drilling machine for mining of minerals, especially ores of non-ferrous metals from narrow layers of reefs in hard rock, comprising at least one drilling head pivotable about a vertical pivoting axis for arcuate drilling of a slot cavity and a carrier comprising a front part and a rear part joined by thrust cylinders and hydraulic props supportable against the upper and lower slot cavity walls, characterized in the drilling head having at least one oscillation disc segment armed with at least two or preferrably more drilling tools and provided with at least one operation cylinder engaging eccentrically to the disc segment and this oscillation disc segment being supported oscillatingly in horizontal position about the vertical pivoting axis in the front part of the carrier. |
