| 摘要 |
FIELD: mining.SUBSTANCE: there proposed is the method of automatic obtaining of specified bottom-hole region in the acting working faces in underground mining of bituminous coal, where by means of tilt sensors mounted on, at least, three out of four main structural details of movable shield framing there defined is the tilting of shield details relatively the horizontal, and calculation machine unit calculates the height of shield framing corresponding to the formation. Besides, there performed is the recording of step movement of each framing of movable shield and there defined is the depth of shearer cut with drum executive mechanism at each winning step. Also by means of sensors mounted on shearer there recorded is the height of shearer cut. By means of bottom-hole area geometry calculated on the basis of the obtained data at each movable shield framing there mounted is the angle of bed top passing and the setting of shearer cut height with drum executive mechanism is sent to the corresponding angle of bed top passing for obtaining the specified bottom-hole region.EFFECT: automation of mining and fixing works in relation to the specified bottom-hole region.20 cl, 10 dwg |
