Selecting Shape of Reinforcement Insertions for Tangential Swivel Cutters of Mining Machines
P. D. KRESTOVOZDVIZHENSKY1, V. I. KLISHIN2, S. M. NIKITENKO2, P. B. GERIKE2
1Mining Tool LLC, ul. Bugareva 29, Novokuznetsk, 654034 Russia
2Institute of Coal, Siberian Branch, Russian Academy of Sciences, Leningradskii pr. 10, Kemerovo, 650065 Russia
Keywords: tangential swivel cutter, reinforcement composite insertion, shape, strength, destruction
Abstract
The article focuses on improvement of strength and wear resistance of tangential swivel cutters intended for high-productivity coal cutting at minimized energy input. It is proposed to reinforce cutters by hard-allow indenter-ellipsoid that has no stress concentrations and cuts rock mass by shearing. Tests of engineering samples of tangential cutters in Kuzbass mines confirm the analysis data on the design of the reinforcement insertion.
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