Designing cutting tools of mining machines for coal auger mining
V. Krasnyk1
1SE “Science and Technical Center “Coalinnovation”, Kyiv, Ukraine
Min. miner. depos. 2016, 10(3):13-19
https://doi.org/10.15407/mining10.03.013
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ABSTRACT
Purpose. The need for new technologies and techniques for the efficient development of thin coal seams.
Methods. Mathematical and experimental modeling of the contact interaction of multipoint cutter with the rock.
Findings. A mathematical model describing contact interaction of multipoint cutter with the rock and the kinetics of its cutting elements wear has been developed. Departing from the results of the performed analysis and experimental research, we created a number of innovative designs of a drilling tool, taking into account peculiarities of the load distribution on its cutting elements in the process of work, which allowed to develop new tool designs, including those for auger machines.
Originality.A mathematical model of contact interaction of multipoint cutter with the rock and the kinetics of its cutting elements wear has been developed.
Practical implications.For auger machines “BSHK-2DM” produced by “Buran” plant, we have developed innovative effectors of 650 mm and 750 mm which reduce energy consumption of the drilling process, lessen the load on the main drive, increase the speed of drilling, and also improve the grade of coal mined.
Keywords: contact interaction, rock, coal auger mining, mathematical modelling
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