Fully mechanized mining working face bending detection and straightening method and system

Abstract

The invention discloses a fully mechanized mining working face bending detection and straightening method. A track and a posture of a coal mining machine running along a scraper conveyer 2 are detected in real time by using an inertial sensitive element on a coal mining machine 6 or a combination of the inertia sensitive element and an angular sensor and a signal processing circuit; and working face detection data is analyzed, is output through the signal processing circuit and is transmitted to a support controller 4 of each hydraulic support 12 through a data transmission line and a full working face electro-hydraulic control system to control and push a push jack 3, so that the scraper conveyer meets a linear requirement. The detection data can also be transmitted to a coal mining machine control system to control a height adjusting jack to adjust the height of a drum cut bottom; and the coal mining machine cuts a coal wall again to straighten the bend. A fully mechanized mining working face bending detection and straightening system comprises the inertial sensitive element, the combination of the inertia sensitive element and the angular sensor, a signal processing system, thefull working face electro-hydraulic control system, the coal mining machine control system and the like. The method and the system are used for fully mechanized mining working face bending detection and straightening, so that the bend of the working face is automatically straightened.

Description

technical field [0001] The invention relates to the field of measurement and automatic control of coal mine fully mechanized mining face, in particular to a fully mechanized mining face bending detection and straightening method and system for automatically detecting and correcting fully mechanized mining face bending. Background technique [0002] At present, in the major coal producing countries in the world, the working faces using the longwall coal mining method are basically fully mechanized mining faces characterized by electro-hydraulic control of supports and linkage between shearers and supports. However, there are inevitably cumulative errors in each step distance of the electro-hydraulic control bracket, resulting in bending of the working face and a series of problems in fully mechanized mining production, such as increased load on the scraper conveyor, increased wear, and passage of the shearer Difficulties, the failure rate of the traveling mechanism of the coa...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of currently relying on manual use of ropes and rulers to detect the curvature of the fully mechanized mining face and manually correct the deflection, the present invention provides a method and system for detecting and straightening the fully mechanized mining face, which can solve the problem of measuring the curvature of the working face , to automate the bending detection and correction of the fully mechanized mining face

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