Coal mine rock tunnel three-axis slotting punching rock breaker

Abstract

The invention relates to a coal mine rock tunnel three-axis slotting punching rock breaker which comprises a plurality of drill rods parallelly arranged on an adjusting support at intervals. The drill rods are horizontal in the rod length direction, one end of each drill rod is connected with a horizontal driving mechanism, the horizontal driving mechanism drives the drill rods to horizontally move, punching operation is performed, and the spatial positions of the drill rods positioned on the adjusting support can be adjusted. The coal mine rock tunnel three-axis slotting punching rock breaker is simple in structure, high-speed and high-quality punching construction can be performed on the premise of ensuring safety, three holes are punched once, the number of the holes punched in unit time is increased, punching time is shortened, parallelism and angle uniformity of the punched holes is ensured, blast hole integrity is good, depth errors along blast holes are decreased, the use ratio of blasting energy is increased, blasting procedures are perfected, expenditure of time of staff is decreased, and construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of blasting and drilling, in particular to a rock-breaking device for three-axis cutting and drilling in coal mine rock roadways. Background technique [0002] Due to the narrow construction section and high rock strength of coal mine roadway excavation in my country, the construction efficiency of roadheaders is low, the equipment cost is high, and the mechanical wear is large. It is especially affected by the underground construction environment and has poor adaptability. Cut blasting has good adaptability to geological conditions, low construction cost, relatively mature technology, and is currently widely used. Cutting blasting mainly arranges cutting holes on the excavation surface, and uses low-level detonators to detonate the explosives in the cutting first, forming a cutting cavity, adding a new free surface for the blasting of the rear blasthole, and improving the roadway blasting with only one free...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a three-axis cutting and drilling rock breaking device for coal mine rock roadway, which solves the limitation of the excavation section size on the drilling machine, long construction time, low drilling efficiency, discontinuous blasting process, and the cutting hole Digging angle and depth errors are large and other problems

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