Active protection type automatic machine-following pushing-sliding systematic quantitative control method

Abstract

The invention relates to an active protection type automatic follow-up push-sliding systematic quantitative control method. The control method is a set of electro-hydraulic control system control method systematically designed after a coal mining machine, a scraper conveyor, a hydraulic support, a coal mine fully-mechanized coal mining process and complex environment factors of a working face are comprehensively considered. According to the method, the minimum support number of a machine-following push-sliding slope section is calculated according to the mechanical structure size characteristics of the scraper conveyor, and the actual number and the push-sliding stop value of the slope section supports are designed according to the mining process requirements. According to the method, a safety protection and supportability control scheme is designed for the jumping of the position of the coal mining machine on site and the complex condition of the working face. By means of the design, quantitative accurate control over automatic machine following of the support and active protection for safety of the scraper conveyor in the push-sliding process are achieved, and the problems of accurate quantification of machine following and push-sliding numerical values and protection of dumbbell pins of the scraper conveyor are fundamentally solved. The method is suitable for automatic and intelligent mining of coal seams with various thicknesses, and has general applicability.

Description

technical field [0001] The invention relates to a hydraulic support automatic follow-up control method for coal shearers with all coal seam thicknesses or working faces of rocker-arm type shearers, and in particular to a hydraulic support automatic follow-up push-slide control function for the structure protection function of a scraper conveyor Systematic Quantitative Control Method. Background technique [0002] With the launch of the State Administration of Work Safety's special action of "replacing people with mechanization and reducing people with automation", there are more and more automation projects in coal mine fully mechanized mining face, and the level of automation and integration are getting higher and higher. More New technologies and concepts are continuously introduced into the fully mechanized mining face for automated and intelligent mining. The entire industry is pursuing high-end and the promotion and application of new technologies, but neglects to impr...

AI Technical Summary

Problems solved by technology

[0003] The existing working face that adopts the support electro-hydraulic control system to push the support, whether it is manually pushed in groups or automatically followed by the machine, has been centered on the support electro-hydraulic control system, and the shearer and scraper conveying have not been considered comprehensively. machine, hydraulic support and fully mechanized mining face mining technology and the complex geological environment of the face, so the overall pushing control method is simple and rough, which is not conducive to the protection of mechanical equipment, especially not conducive to the protection of related parts of the scraper conveyor, there are serious problems Production safety hazards, and affect the effect of automated mining and mining efficiency

Although some electro-hydraulic control system equipment manufacturers tried to make some improvements, they did not grasp the core of the problem, and thus did not fundamentally solve the problem

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