| 摘要 |
FIELD: mining.SUBSTANCE: section of lining of mining face comprises a base, a floor slab with the hood, hydraulic racks of goaf and bottomhole raw, the supports corresponding to them, jibs connecting the goaf part of the floor slab with the supports of the bottomhole raw, hydraulic jacks of advance mounted on both sides of the base, the upper and lower barriers at the goaf side with technological gaps made in them and electrical and hydraulic equipment. The section is structurally connected to the excavation and a delivery vehicle made in the form of a horizontally oriented auger equipped with a cutter. The upper barrier at the goaf side of the lining section normally to the floor slab the hydraulic cylinders of the jacks are welded supplying additional cutting tool mounted in parallel to the excavation and delivery vehicle, in the floor slab at the goaf side the technological gap is made, in which the additional cutting tool is placed in the starting position. The base is made telescopic - the upper part of the base in the space between the supports of the same raw is made a series of grooved shape with two longitudinal slots, the lower part is made pulled out due to hydraulic jacks connected to the upper part of the base. The lower barrier at the goaf side of the section of lining with welding and reinforcement ribs is connected to the pulled out part of the base, and the amount of stroke of the jacks of pulling out of the base is not less than the advance increment of the section of lining and the reinforcement ribs are inserted into the slots of the upper part of the base.EFFECT: increased efficiency of maintaining workspace of the mining face and extension of the scope.7 dwg |
