Special drilling machine applied to coal mine getting working face

Abstract

The invention discloses a special drilling machine applied to a coal mine getting working face, wherein a propulsion unit of the special drilling machine adopts an air cylinder for driving, a piston of the air cylinder is dragged by a cable rope which is a steel wire cable rope, and a plastic wrapping layer is wrapped at the exterior of the steel wire cable rope. The invention has the advantages that the air cylinder is utilized to push a drill pipe and adopts the cable rope instead of a piston rod to connect the piston, thereby solving the problem that the piston rod occupies a large space during commanding; the cable rope is the steel wire cable rope, and the plastic wrapping layer is wrapped at the exterior of the steel wire cable rope so that the cable rope and the seal ring of an aircylinder end cover form favorable sealing during passing in and out the air cylinder to prevent dust from entering into the air cylinder, and in addition, the cable rope passing in and out the air cylinder is blown to be clean by internal exhaust air generated by the operation of drainage of the air cylinder and a seal gas ring is formed at a seal mouth so as to effectively prevent dust from entering into the air cylinder, and effectively prolong the service life of the air cylinder; and the drill pipe and a power head are connected by steep-lead threads, thereby greatly shortening the assembly and disassembly time and greatly enhancing the work efficiency.

Description

【Technical Field】 [0001] The invention relates to a mining machine, in particular to a special drilling rig applied to coal mining face. 【Background technique】 [0002] The special drilling rig used in the mining face of the coal mine is used to implement advanced discharge drilling on the mining face of the coal mine. The special drilling rigs currently used in coal mines can only be used to advance the drill pipe mechanically or hydraulically. The structure is complex, the whole machine is heavy, and the transportation and installation are inconvenient. At the same time, it is easy to cause jamming during drilling. When the cylinder is used to push the drill rod, the cylinder piston rod takes up a lot of space, which affects the safety of the operator. If the cylinder is used, due to the dusty working environment, a large amount of dust will easily enter the cylinder body. The service life of the drill rod will be very short; in addition, the thread used for the connection bet...

AI Technical Summary

Problems solved by technology

[0003] In view of the problems existing in the current known technology, the technical problem to be solved by the present invention is to provide a special drilling rig applied to the mining face of coal mines. This kind of drilling rig uses a cylinder to push the drill rod, which is light in weight, and uses a rope to replace the cylinder piston rod. , which solves the shortcomings of large space occupied by the cylinder piston rod and poor safety performance, and at the same time can ensure the tightness inside the cylinder, the cylinder has a long service life, and can also realize the rapid loading and unloading of the drill pipe and improve work efficiency

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