Automatic adjustment method for smoothness of cutting path of roller of coal cutter in real time

Abstract

The invention discloses an automatic adjustment method for smoothness of a cutting path of a roller of a coal cutter in real time. The method comprises the following steps of establishing a static reference coordinate system according to original data of a dip angle of a coal cutter body; and during an operation process of the coal cutter, taking the static reference coordinate system as a reference standard, establishing a dynamic operation coordinate system, and automatically controlling a rocker arm of the coal cutter in real time according to a derivative control principle, so that the roller of the coal cutter is subjected to automatic height-adjustment continuously, and the roller is ensured to be operated continuously and stably. According to the method, a derivative control system is adopted, so that the cutting path of the coal cutter can be kept to be operated in a smooth path, the pushing and the waling of other equipment are favored, the continuousness and the production efficiency of coal cutting are improved, favorable operation mode and smoothness of coal cutting equipment are maintained, the risk of accident occurrence is reduced, and the method is simple and easy to implement, and can meet the requirements of smoothness of the cutting path of the coal cutter under the condition of different coal beds.

Description

technical field [0001] The invention relates to a real-time automatic adjustment method for the flatness of a cutting path of a shearer drum, and belongs to the technical field of shearer equipment. Background technique [0002] At present, the smoothness of the cutting path of the shearer is mainly controlled manually by the driver of the shearer. However, due to the harsh production environment of the coal mining face, the changeable geological conditions, and the limited observation ability of the driver of the shearer, it is difficult to achieve or maintain the smoothness of the cutting path. The expected smoothness of the cutting path of the coal mining machine, but the unevenness of the cutting path of the coal mining machine will easily lead to the following problems: the increased resistance of the scraper conveyor, the hydraulic support is not in place, etc., resulting in production interruption, and in severe cases Equipment damage and personal injury or death may ...

AI Technical Summary

Problems solved by technology

[0002]At present, the smoothness of the cutting path of the shearer is mainly controlled by the driver of the shearer manually. However, due to the harsh production environment and changeable geological conditions of the coal mining face, Moreover, the observation ability of the shearer driver is limited, and it is difficult to achieve or maintain the expected smoothness of the shearer's cutting path, and the unevenness of the shearer's cutting path will easily lead to the following problems: the resistance of the scraper conveyor increases, the hydraulic pressure Insufficient support of the bracket, etc., resulting in production interruption, and in severe cases, equipment damage and casualties

Chinese patent CN 101887273 B and Chinese patent CN 102797462 A respectively disclose real-time automatic control methods for the cutting height of the shearer drum, but these methods are all for indirectly realizing the function of coal-rock interface recognition, but cannot adjust the flatness of the drum itself At present, there is no literature on the real-time automatic adjustment of the flatness of the cutting path of the shearer.

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