Coal mine drilling angle measuring system and method

Abstract

The invention provides a coal mine drilling angle measuring system and method; the coal mine drilling angle measuring system comprises a laser reference line transmitting device and a digital angle measuring device, wherein the laser reference line transmitting device is used for generating a first laser plane and a second laser plane, which are vertical to each other; the first laser plane is coincided with an intersecting line of inner walls of a roadway and a midline of the roadway; the second laser plane is intersected with a drill pipe to be measured; the digital angle measuring device is used for measuring the angle of the drill pipe according to the second laser plane; and the digital angle measuring device is arranged on the drill pipe intersected with the second laser plane. Through the adoption of the coal mine drilling angle measuring system and method provided by the invention, the accuracy of drilling angle measuring parameters is enhanced, the construction quality of coal mine gas treatment drill hole is guaranteed, and a gas treatment effect is enhanced.

Description

technical field [0001] The invention relates to mine measurement technology, in particular to a drilling angle measurement system and method for coal mines. Background technique [0002] At present, underground gas control in coal mines has become an important topic in the prevention of coal mine gas disasters. The most effective means of gas control is gas drainage, which is usually achieved by drilling in the mine roadway. Hole precision directly affects the quality of drilling holes, and directly affects the effect of gas control. [0003] In the prior art, the method of shifting the center line of the roadway is used to measure the drilling angle of the mine. Before the measurement of the drilling angle by the method of shifting the center line of the roadway, at least two vertical lines need to be suspended, and four technicians are required to cooperate with the operation to realize the translation of the center line of the roadway , the operation time is long. Moreo...

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Problems solved by technology

[0003] In the prior art, the method of shifting the center line of the roadway is used to measure the drilling angle of the mine. Before the measurement of the drilling angle by the method of shifting the center line of the roadway, at least two vertical lines need to be suspended, and four technicians are required to cooperate with the operation to realize the translation of the center line of the roadway , long operating time

Moreover, the environment in the mine also has a great influence on the angle measurement, especially the wind will blow the hanging wires and human factors, resulting in a large measurement error, and finally the difference between the actual construction of the gas drainage borehole and the design large, bringing hidden dangers to coal mine gas control

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