Open AccessDurability increase of mining dump trucks through the use of protective coatings of the body
Author(s) -
Yuliya Lagunova,
S. A. Khoroshavin,
A. E. Kalyanov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/862/3/032029
Subject(s) - truck , stiffness , durability , mining engineering , vibration , natural rubber , productivity , stress (linguistics) , environmental science , structural engineering , engineering , automotive engineering , materials science , composite material , linguistics , philosophy , physics , quantum mechanics , economics , macroeconomics
The share of trucking in the total cost of open-cast mining is 50% or more. Therefore, reducing transportation costs is one of the tasks of increasing the technical and economic indicators of an open development method, which is an urgent task. Performance dump truck is estimated either by the volume of transported rock mass (in cubic meter or tons), or the value of cargo turnover (ton-kilometers). However, these indicators do not take into account the percentage of adhering rock that is transported uselessly and reduces productivity. The paper proposes methods for protecting the body of a mining dump truck from clay rocks adhering. Detail the method of protection with the help of vibration using metal structure is considered. A mathematical model of the stress-strain state of a two-layer beam is proposed. The dependence of the stress in the body on the stiffness of the elastic supports and impact energy when using a rubber lining is shown.