A system and method for measuring the multi-position state of the support and the shrinkage of the live column in the fully mechanized mining face

Abstract

Disclosed is comprehensive mechanized coal mining face support multi place-states and plunger descending amount measuring system and method. The comprehensive mechanized coal mining face support multi place-states and plunger descending amount measuring system comprises a system host, a top beam tilt angle sensor, a shield beam tilt angle sensor and connecting lines; the top beam tilt angle sensor is arranged on the top beam of a support and used for measuring the tilt angle of the top beam; the shield beam tilt angle sensor is arranged on the shield beam of the support and used for measuring the tilt angle of the shield beam; the connecting lines are used for connecting the top beam tilt angle sensor and the shield beam tilt angle sensor with the system host. The comprehensive mechanized coal mining face support multi place-states and plunger descending amount measuring system not only can accurately acquire multi place-states information of supports such as the top beam, the shield beam and a four-bar linkage, but also can accurately acquire support plunger descending amount value and effectively eliminate the defects of high labor intensity, high monitoring costs, poor data real time and low precision in comprehensive mechanized coal mining face support multi place-states and plunger descending amount measurement.

Description

technical field [0001] The invention relates to a system and method for measuring the multi-position state of a support in a fully mechanized mining face and the shrinkage of a living column. Background technique [0002] The mining depth and mining intensity of my country's coal mines are increasing day by day. In the harsh environment of coal mines, the hydraulic support of the working face bears the load of hundreds of tons of rock formations. Once the roof of the working face is pressed or the position of the support is not good, the hydraulic support column will have a large shrinkage, and even cause a vicious accident that the roof is cut off along the coal wall or the end face falls, which is not conducive to the safe and normal production of the working face. [0003] Since the support of the working face is composed of roof beams, cover beams, four-links, columns, bases, etc., once the stress condition of the supports deteriorates, not only the shrinkage of the colu...

AI Technical Summary

Problems solved by technology

However, there are many shortcomings in this method. First, the testing process requires workers to climb up and down on the working surface, which is labor-intensive, and the reading error of the tape measure is large under the condition of low illumination underground. , is not conducive to timely guidance of on-site safety production

[0006] To sum up, there is currently no system and method for measuring the position of supports in fully-mechanized mining faces and the shrinkage of living columns that can significantly reduce the labor intensity of workers, significantly improve monitoring accuracy, significantly save monitoring costs, and significantly improve monitoring efficiency.

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