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Method and system for automatically identifying coal rock interface of coal cutter, and automatically heightening roller

An automatic identification and shearer technology, which is applied in the direction of earthwork drilling and cutting machinery, etc., can solve the problems of different processing methods of drums, complexity, and limited application of memory cutting technology, and achieve comprehensive and accurate results of automatic identification of coal-rock interface. Avoid frequent adjustments and easy signal pickup

Inactive Publication Date: 2012-10-10
XUZHOU NORMAL UNIVERSITY
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Problems solved by technology

However, due to the actual cutting conditions of the coal shearer, there are working conditions such as fluctuations in coal seam properties, cutting hard coal seams, cutting roofs, cutting gangue and cutting faults, which are relatively complicated, and under different cutting medium conditions, Drum height requires a different approach
Therefore, the simple identification of the drum cutting medium as coal cutting and rock cutting is too rough and inaccurate compared with the actual cutting conditions of the drum, which also limits the application of the memory cutting technology to a certain extent. This is one of the reasons why memory cutting technology is rarely used in current actual production

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  • Method and system for automatically identifying coal rock interface of coal cutter, and automatically heightening roller

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Embodiment Construction

[0025] Such as figure 1 As shown, taking the cutting of the roof by the right drum of the shearer as an example, the automatic recognition of the coal-rock interface of the shearer and the automatic height adjustment system of the drum are mainly composed of the fuselage 1, the controller 2, the cutting motor 3, the height sensor 4, Cutting force response sensor 5, rocker arm 6, cylinder 7, position sensor 8, output driving wheel 9 and output shaft 10 constitute. The fuselage 1 is a rigid whole, the fuselage 1 is hinged with the rocker arm 6 , and the output end of the rocker arm 6 is connected with the drum 7 . Cutting motor 3 and rocking arm 6 are fixed together. The output shaft 10 of the traction part of the coal shearer and the output driving wheel 9 drive the coal shearer to work forward. Install the controller 2 on the body 1. The shearer position sensor 8 is installed on the output shaft 9 of the traction part of the shearer to measure the position of the shearer on...

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Abstract

The invention discloses a method and a system for automatically identifying a coal rock interface of a coal cutter, and automatically heightening a roller, and relates to the technical field of automatically identifying the coal rock interface of the coal cutter, and automatically heightening the roller. A controller is arranged on the body of the coal cutter; and the controller stores a cutting force response value used for identifying various coal rock media, the maximum value of each cutting state continuous time, and a height preset value of the roller. When the coal cutter works, the controller determines the current cutting state continuous time, compares the current cutting force response value, the current cutting state continuous time, and the height of the roller with the preset value in the controller according to a corresponding algorithm, and automatically identifies the current cutting medium; and the roller is heightened according to the identifying result and the corresponding algorithm. The method and the system have the advantages that the identifying result of the coal rock interface is more comprehensive; and the roller is automatically heightened, and the height of the roller can be prevented from being frequently adjusted.

Description

technical field [0001] The invention relates to the technical field of coal-rock interface recognition and drum height adjustment of a shearer, in particular to a method and system for automatic recognition of a coal-rock interface of a coal shearer and automatic height adjustment of a drum, which is suitable for mining in mines with a memory cutting function. coal machine. Background technique [0002] The coal-rock interface automatic identification technology of the shearer and the drum automatic height adjustment technology are closely linked together. The automatic recognition of the coal-rock interface of the shearer and the automatic height adjustment control technology of the drum are the key technologies to realize the automatic control of the coal mining face. At present, the automatic recognition of the coal-rock interface of the shearer and the automatic height adjustment technology of the drum have developed to the stage of "memory cutting" control technology. ...

Claims

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Application Information

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IPC IPC(8): E21C35/24
Inventor 苏秀平韩继光周连佺王广丰
Owner XUZHOU NORMAL UNIVERSITY
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