Calculation and Justification Parameters of Strengthening Technology to Produce Drill Rig Shaft Gear on the Basis of Mechanics of Technological Inheritance

DOI

10.2991/coal-16.2016.51How to use a DOI?

Keywords

drilling machine, metal consumption, plastic deformation of the surface, static strength, fatigue crack life

Abstract

Gear shafts of drill rigs in case of holes drilling in coal mines work in complex aperiodical loading conditions. One way to reduce metal consumption of gear shafts is to use the combined strengthening technology on the basis of plastic deformation of the surface (PDS) method. FEM modeling of plastic deformation of the surface process and calculations of stress and strain state were done. It is shown that due to combined strengthening the yield points, stress limit and fatigue limit increase; these factors allow performing stress and fatigue crack life calculations in case of gear shafts mass is decreasing on 10-10%. It is estimated that in case of metal consumption decrease not less than in 1,5-2 times the necessary factors of safety and fatigue crack life are provided.

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  - Valeriy Blumenstein
AU  - Alina Ferranti
PY  - 2016/10
DA  - 2016/10
TI  - Calculation and Justification Parameters of Strengthening Technology to Produce Drill Rig Shaft Gear on the Basis of Mechanics of Technological Inheritance
BT  - Proceedings of the 8th Russian-Chinese Symposium “Coal in the 21st Century: Mining, Processing, Safety"
PB  - Atlantis Press
SP  - 264
EP  - 272
SN  - 2352-5401
UR  - https://doi.org/10.2991/coal-16.2016.51
DO  - 10.2991/coal-16.2016.51
ID  - Blumenstein2016/10
ER  -