Cutting mechanical study of pick cutting coal seams with coal and rock interface

Shearer is an indispensable and important equipment for coal mining and the mining efficiency of shearer depends on the performance of pick to a great extent. In this paper, we conducted a series experiments of single pick cutting on the coal and rock cutting testbed. Simultaneously, we built the si...

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Autores principales:	Chenxu Luo, Junbei Qiao, Jiawei Zhou, Zhijia Sun, Jun Cao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Helical vanedrum Coal–rock interface Pick Coal seam Cutting load Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/c455278582304ef8815fcb8cc6724bb3
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spelling	oai:doaj.org-article:c455278582304ef8815fcb8cc6724bb32021-12-04T04:34:48ZCutting mechanical study of pick cutting coal seams with coal and rock interface2352-484710.1016/j.egyr.2021.11.017https://doaj.org/article/c455278582304ef8815fcb8cc6724bb32022-05-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721011616https://doaj.org/toc/2352-4847Shearer is an indispensable and important equipment for coal mining and the mining efficiency of shearer depends on the performance of pick to a great extent. In this paper, we conducted a series experiments of single pick cutting on the coal and rock cutting testbed. Simultaneously, we built the single pick cutting coal seam model, based on which, considering the strength condition of coal seam and coal–rock interface, the rotary cutting mechanical model of pick cutting coal seam with coal–rock interface is established. According to the crushing theory of coal and rock interface, this paper analyzed stress strain and strength condition of the area surround the interface, which ensured the basics for the further research. The data of picking force in the cutting process under different experimental conditions was collected by the sensor installed on the drum, a phenomenon appeared in the amplitude domain analysis of the data that the bigger force arising along with the greater compressive strength difference between coal seam and coal–rock interface, which means the force is positively correlated with the compressive strength. The results of time domain analysis shown that some basic properties of the cutting load changes over times.Chenxu LuoJunbei QiaoJiawei ZhouZhijia SunJun CaoElsevierarticleHelical vanedrumCoal–rock interfacePickCoal seamCutting loadElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 8, Iss , Pp 51-59 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Helical vanedrum Coal–rock interface Pick Coal seam Cutting load Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Helical vanedrum Coal–rock interface Pick Coal seam Cutting load Electrical engineering. Electronics. Nuclear engineering TK1-9971 Chenxu Luo Junbei Qiao Jiawei Zhou Zhijia Sun Jun Cao Cutting mechanical study of pick cutting coal seams with coal and rock interface
description	Shearer is an indispensable and important equipment for coal mining and the mining efficiency of shearer depends on the performance of pick to a great extent. In this paper, we conducted a series experiments of single pick cutting on the coal and rock cutting testbed. Simultaneously, we built the single pick cutting coal seam model, based on which, considering the strength condition of coal seam and coal–rock interface, the rotary cutting mechanical model of pick cutting coal seam with coal–rock interface is established. According to the crushing theory of coal and rock interface, this paper analyzed stress strain and strength condition of the area surround the interface, which ensured the basics for the further research. The data of picking force in the cutting process under different experimental conditions was collected by the sensor installed on the drum, a phenomenon appeared in the amplitude domain analysis of the data that the bigger force arising along with the greater compressive strength difference between coal seam and coal–rock interface, which means the force is positively correlated with the compressive strength. The results of time domain analysis shown that some basic properties of the cutting load changes over times.
format	article
author	Chenxu Luo Junbei Qiao Jiawei Zhou Zhijia Sun Jun Cao
author_facet	Chenxu Luo Junbei Qiao Jiawei Zhou Zhijia Sun Jun Cao
author_sort	Chenxu Luo
title	Cutting mechanical study of pick cutting coal seams with coal and rock interface
title_short	Cutting mechanical study of pick cutting coal seams with coal and rock interface
title_full	Cutting mechanical study of pick cutting coal seams with coal and rock interface
title_fullStr	Cutting mechanical study of pick cutting coal seams with coal and rock interface
title_full_unstemmed	Cutting mechanical study of pick cutting coal seams with coal and rock interface
title_sort	cutting mechanical study of pick cutting coal seams with coal and rock interface
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/c455278582304ef8815fcb8cc6724bb3
work_keys_str_mv	AT chenxuluo cuttingmechanicalstudyofpickcuttingcoalseamswithcoalandrockinterface AT junbeiqiao cuttingmechanicalstudyofpickcuttingcoalseamswithcoalandrockinterface AT jiaweizhou cuttingmechanicalstudyofpickcuttingcoalseamswithcoalandrockinterface AT zhijiasun cuttingmechanicalstudyofpickcuttingcoalseamswithcoalandrockinterface AT juncao cuttingmechanicalstudyofpickcuttingcoalseamswithcoalandrockinterface
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Cutting mechanical study of pick cutting coal seams with coal and rock interface

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