Straightening system and method for hydraulic support in coal mine working face

Abstract

A coal mining face hydraulic support straightening system comprises a support controller and a laser transceiver. The laser transceiver has a structure of multiple groups of arrays. The support controller is connected with the laser transceiver electrically. The laser transceiver comprises an emitting unit and a receiving unit which have the structure of multiple groups of arrays. According to the coal mining face hydraulic support straightening system, adjacent supports or supports at intervals can be moved and positioned conveniently according to moving laser positioning signals, so that situations that hydraulic supports are moved or added or multiple hydraulic support are moved simultaneously in the automatic machinery tracking process can be adapted; the hydraulic support which is moved can serve as a benchmark for hydraulic support movement to control, and straight degree control of the mining face hydraulic support is implemented.

Description

technical field [0001] The invention relates to a straightening system and a straightening method of a hydraulic support on a working face, in particular to a system and a method for installing a laser transceiver on a hydraulic support column to control the straightness of a hydraulic support group. Background technique [0002] The coal mining working face is formed by arranging multiple hydraulic supports in sequence on the working face to support the roof of the working face and move the scraper conveyor. During work, in order to realize the normal operation of the working face, a certain straightness needs to be maintained between the multiple working face hydraulic supports, that is, the multiple working face hydraulic supports are basically on the same straight line. At the same time, in the coal mining process, the scraper conveyor is the track on which the shearer runs, so the straightness of the hydraulic support on the working face is the premise to ensure the str...

AI Technical Summary

Problems solved by technology

In the working face equipped with the electro-hydraulic control system, due to the accumulation of sensor errors in the control system and the delay in the feedback of the hydraulic system, most of the operations on the working face are controlled by hydraulic support straightening with manual electric control operation as the main means.

Moreover, in the prior art, the control of straightness basically depends on the travel distance of the stroke sensor to determine, without a set of calibration feedback mechanism, once the stroke sensor fails, the straightness of each hydraulic support and scraper conveyor will be greatly deviated In severe cases, underground accidents will be caused, which will have a serious impact on the normal mining work of the working face.

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