Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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PHYSICAL MODELING OF DRILLING TECHNIQUES BLAST-HOLES WITH SUPERPOSITION OF AXIAL AND MOMENT IMPULSES ON THE TOOL

Grinko D.A. 1
1 Platov South-Russian State Polytechnic University (NPI)
Necessity of research drilling techniques of blast-holes with superposition of axial and moment impulses on the tool by the physical modeling is proved. Analyzed the existing structures of the stands for investigation of rock drilling and proposed an original design of an experimental stand with the possibility of imposing additional axial and moment impulses to the instrument. The technique of experimental studies, which allow to reduce the number of experiments in the experiment without compromising the reliability of the results and evaluate the joint effect of the two factors on the speed of drilling was developed. The experimental studies of the effect of superimposed on the tool axis and moment impulses on the drilling speed indicate that applying an axial impulses increases drilling speed greater extent than when applied moment impulses. Superposition moment and axial impulses on the tool, as well as the selection and maintenance of regime parameters of drilling including moment and axial impulses on a rational level may be implemented by boring machines mechatronic class. Superposition moment and axial impulses on the tool, as well as the selection and maintenance of regime parameters of drilling including moment and axial impulses on a rational level may be implemented by blast-hole drilling machines of mechatronic class.