Mining roof cutting drilling rig combined step device and use method thereof

Abstract

The invention belongs to the technical field of mining machinery equipment, and particularly provides a mining roof cutting drilling rig combined step device and a use method thereof. Two pillars areused for supporting, and the two pillars are connected by a transverse oil cylinder and a transverse sleeve; the two pillars are mutually supporting points, and free expansion and contraction of the transverse oil cylinder drives the synchronous expansion and contraction of the transverse sleeve; cyclic expansion and contraction of extension rods of the two pillars realizes the step forward movement of a roof cutting drilling rig; and the front section of a drilling rig guide rail is connected to a cylinder block of the transverse oil cylinder, the rear section of the drilling rig guide rail is connected to the transverse sleeve, and the inclination angle of the drilling rig guide rail is adjusted by changing the length of an inclined supporting screw rod between the drilling rig guide rail and the transverse sleeve. According to the mining roof cutting drilling rig combined step device and the use method thereof, the structure is simple, the movement is convenient, adaptability is high, and labor intensity is greatly reduced; and the turning angle of the drilling rig guide rail is large, rapid and accurate positioning of the drilling rig is facilitated, and the work efficiency isimproved; and the construction of roof cutting drilling in straight-line shape small drilling spacing and various complex geological conditions can be met, and construction of roof cutting holes for narrow spaces inside belts can be further met.

Description

technical field [0001] The invention belongs to the technical field of mining machinery and equipment, and in particular relates to a combined stepping device for a mining top-cut drilling rig and a use method thereof. Background technique [0002] The geological conditions of my country's coal fields are complex, and natural disasters such as gas, water damage, and high ground stress seriously restrict the safe production of coal mines. In the process of coal mining, it is necessary to frequently construct top-cut drilling. And fully collapsed to reduce the coal pressure, or the collapsed rock filled the goaf to reduce gas accumulation. The main characteristics of this type of drilling are large angle, small spacing, high parallelism requirements, and the drilling depth is generally not large. The angle is generally 75°-90° with the horizontal direction, the spacing is generally 400-800mm, and the drilling depth is generally within 15m. [0003] Most of the currently used dr...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the crawler-type single-arm drilling rig or double-cantilever drilling rig in the above-mentioned prior art for roadways with complex geological conditions, large inclination angles, and small cross-sections, and it is difficult to construct top-cut drilling holes in the narrow space inside the belt, and propose a Combination stepping device of mining top cutting drilling rig

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