Effects of working conditions on excavator performance - longevity of metal structures

International Conference on Innovations and Prospects of Development of Mining Machinery and Electrical Engineering 2018

矿业工程;电工学

Nasonov, M.Y.^1 ; Lykov, Y.V.^1

Saint-Petersburg Mining University, 21 Line No.2, Saint-Petersburg

199106, Russia^1

关键词: Drilling and blasting operations;    Loading cycles;    Metal structures;    Technical conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/194/4/042017/pdf
DOI  :  10.1088/1755-1315/194/4/042017

来源: IOP

【 摘 要 】

This paper presents factors exerting significant influence not only on the productivity and performance of excavators but also on the formation of cracks in the metal structures of excavators. Based on the obtained experimental results and observations of excavators working under specific conditions and subsequent analysis, it was noted that these factors determine the durability (the number of loading cycles) of excavators. A relation between the working conditions of the spider and mine excavators in the faces and the durability of their metal structures and productivity was established. Mining technical conditions, technology of drilling and blasting operations, oversize yield and coarseness of grading of the rock have a significant impact on the reliability and performance of excavators. The derived graphical dependencies clearly show the influence of these various factors.