Fully mechanized coal mining face scraper conveyor full-length fluctuation state detection system and method

Abstract

The invention discloses a fully mechanized coal mining face scraper conveyor full-length fluctuation state detection system and method, and the detection system consists of a hydraulic support pedestal proximity switch triggering module, a single-section scraper conveyor pose regulation digital oil cylinder displacement detection module, a single-section scraper conveyor middle groove fluctuationangle calculation module and a scraper conveyor full-length fluctuation state output module. The detection method specifically comprises the following steps: detecting the pitching-up angle of a hydraulic support pushing rod through a hydraulic support base proximity switch triggering module, and detecting the telescopic amount of a push rod of a pose control oil cylinder of the scraper conveyer through a pose control digital oil cylinder displacement detection module of the single-section scraper conveyer; and the single-section scraper conveyor middle groove fluctuation angle calculation module calculates the single-section scraper conveyor middle groove fluctuation angle, and finally the scraper conveyor full-length fluctuation state output module draws a full-length fluctuation curve of the whole working face scraper conveyor. Based on the hydraulic support base proximity switch and the single-section scraper conveyor pose regulation and control digital oil cylinder displacement monitoring device, the dynamic fluctuation change of the scraper conveyor in the vertical direction of the working face can be effectively monitored, and a data basis is provided for follow-up fluctuation degree regulation and control of the scraper conveyor.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to a detection system and a detection method for the full-length undulation state of a scraper conveyor in a fully mechanized mining face. Background technique [0002] The scraper conveyor is an important supporting equipment in the fully mechanized mining face. The middle grooves of adjacent single-section scraper conveyors are connected by dumbbell pins to form an overall equipment with a certain degree of curvature. Therefore, the continuous operation of the scraper conveyor is the premise to ensure the normal production of the fully mechanized mining face. However, during the recovery process of the fully mechanized mining face, due to various reasons such as the structural limitation of the overall curvature of the scraper conveyor, the undulation of the coal seam in the underground stope, and the deformation of the piled coal on the bottom plate of the working face, the ...

AI Technical Summary

Problems solved by technology

However, during the recovery process of the fully mechanized mining face, due to various reasons such as the structural limitation of the overall curvature of the scraper conveyor, the undulation of the coal seam in the underground stope, and the deformation of the piled coal on the bottom plate of the working face, the scraper conveyor sometimes appears "floating". "Phenomenon, that is, the scraper conveyor that should be perpendicular to the bottom plate of the working surface has an upward deflection angle, especially the head and tail of the scraper conveyor. The overlap distance between the coal mines changes, resulting in problems such as poor coal pulling, coal pulling back, or insufficient safety exits; at the same time, the "floating" of the single-section scraper conveyor causes the overall fluctuating situation of the scraper conveyor on the working face, which seriously affects The "three-level" state of straight scraper machine, straight coal wall and straight support on the working face brings huge hidden dangers to safe production

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