The Power Characteristics of the Reversible Radial Crowns with Disk Tools for Roadheaders of Selective Action

DOI

10.2991/coal-16.2016.45How to use a DOI?

Keywords

roadheader, effector, crown, triangular prism, disc tool, reverse, displacement, rock face, contact strength, effort, moment.

Abstract

The areas of improvement in the design of the crowns of roadheaders of selective action and other mining machines. Suggested was the usage of biconical, conical disk tools and their attachment assemblies to the triangular prisms on the crowns of roadheaders and shearers-bladed screws for the destruction of structurally inhomogeneous working faces. The solution to the problem of combining the processes of rock destruction, crushing and loading by boom-type cutting bodies in driving headings by roadheaders of selective action is presented. The recommendations are given on agreed reverse modes of two radial crowns with the disc tool mounted on triangular prisms for the extension of loading area in the near-sidewalls spaces of mine workings. The process of formation of loads on the disc tool during destruction of rock was studied. The calculated dependences are presented of the transverse efforts on the cutting body with two kinematiccally connected radial reversible crowns for eight standard fixed stages of rotation of the crowns with the disc tools in the destruction.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Leonid Mametyev
AU  - Alexey Khoreshok
AU  - Aleksandr Tsekhin
AU  - Sergey Mukhortikov
AU  - Andrey Borisov
PY  - 2016/10
DA  - 2016/10
TI  - The Power Characteristics of the Reversible Radial Crowns with Disk Tools for Roadheaders of Selective Action
BT  - Proceedings of the 8th Russian-Chinese Symposium “Coal in the 21st Century: Mining, Processing, Safety"
PB  - Atlantis Press
SP  - 232
EP  - 237
SN  - 2352-5401
UR  - https://doi.org/10.2991/coal-16.2016.45
DO  - 10.2991/coal-16.2016.45
ID  - Mametyev2016/10
ER  -