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Coalface straightness control method

A coal mining face and control method technology, applied to mining equipment, earthwork drilling, mine roof support, etc., can solve the problems of lower production efficiency, uneven movement of scraper conveyors, etc., and achieve simple structure, low cost, The effect of high reliability

Active Publication Date: 2012-09-12
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the working face of the hydraulic support manual system is all manually pushed or pulled to control the straightening of the scraper conveyor. The electro-hydraulic control system of the hydraulic support uses a stroke sensor to control the movement of the hydraulic support. The connecting hole of the conveyor is U-shaped, and there is a large gap between it and the connecting head of the push rod of the hydraulic support. During the moving process of the hydraulic support, due to the accumulation of stroke sensor error and the influence of the clearance between the connecting pin lug of the conveyor, As a result, the movement of the scraper conveyor is uneven, and manual adjustment is required, which reduces production efficiency

Method used

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  • Coalface straightness control method

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Embodiment Construction

[0020] A preferred embodiment of the method for controlling the straightness of the coal mining face according to the present invention. In the working process, the coal mining face is basically a straight line, so its related equipment should also maintain a certain straightness. The straightness of the coal mining face in the present invention includes the straight lines of multiple hydraulic supports in the working face. And the straightness of its scraper conveyor. In the straightness control method of the coal mining face of the present invention, the straightness control device of the coal mining face includes a hydraulic support, a scraper conveyor, a distance meter, an angle sensor and a support controller. The scraper conveyor is usually arranged close to the coal mining face, and the shearer runs on it. It consists of multiple chutes. A group of multiple hydraulic supports arranged in sequence are provided on one side of the scraper conveyor to support coal mining. T...

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Abstract

The invention discloses a coalface straightness control method. A range finder and an angle sensor are mounted on the top beam of a hydraulic support, the range finder is used for measuring the distance between the hydraulic support and a coal wall, and the angle sensor is used for detecting the posture of the top beam of the hydraulic support; a support controller is mounted on the hydraulic support and is used for detecting the states of the hydraulic support and controlling the actions of the hydraulic support. The hydraulic support and a scraper conveyer are connected by a pin lug, and the movement of the scraper conveyer is realized through the push-slip control of the hydraulic support. In the moving process of the hydraulic support, the distance between the hydraulic support and the coal wall is detected, and the moving travel of the hydraulic support is controlled at the same time, so the distance between the moved hydraulic support of the coalface and the coal wall remains the same, the control on the straightness of the coalface hydraulic support is realized, the control on the straightness of the scraper conveyer is realized through the push-slip action of the coalface hydraulic support, and the control on the straightness of the whole coalface is accordingly realized.

Description

Technical field [0001] The invention relates to a method for controlling the straightness of a coal mining face, in particular to a method for controlling the straightness of a hydraulic support and a scraper conveyor for a fully mechanized mining face in a coal mine. Background technique [0002] The fully mechanized mining face is composed of shearers, scraper conveyors, hydraulic supports and other equipment. The scraper conveyor is composed of a chute connected by sections. The connecting hole of the scraper conveyor and the connecting head of the push rod of the hydraulic support pass through the pin. The sub is fixedly connected, and the movement of the scraper conveyor is realized by the telescopic action of the hydraulic support pushing the jack. Therefore, the posture of the scraper conveyor is completely controlled by the pushing and sliding actions of the hydraulic support. The hydraulic support is constrained by the scraper conveyor on the working surface. It is a flo...

Claims

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Application Information

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IPC IPC(8): E21D23/12
Inventor 牛剑峰魏文艳赵文生
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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