Improving the technique for assessing the condition and predicting the wear of the rock destruction tool equipment
Jaroslav Grydzhuk, Andriy Dzhus, Andriy Yurych, Lidiia Yurych, Maksym Dorokhov, Andrii Livinskyi
To ensure the trouble-free operation of the rock-destroying tool, the peculiarities of its interaction with the rock at different stages of work must be additionally studied. Still unexplored in full is the relationship between the state of the equipment of the rock-destroying tool and the oscillatory processes during the operation of the drilling tool. The basic dependences for determining the wear indicators of the equipment of the rock-destroying tool have been proposed. The scheme for implementing the method of assessing the condition and predicting the wear of equipment, taking into account the peculiarities of its interaction with the rock, has been improved. Underlying its implementation is the presence of a law of change of at least one generalized coordinate of an arbitrary cross-section of a drilling tool. Bench experimental studies were carried out, according to the results of which the dependence of the depth of the face deepening on the mode parameters of drilling and the geometry of the equipment was established. It was found that the wear of the cutter by 1 mm causes a decrease in the amplitude of longitudinal oscillations by an average of 1.4 times. The obtained functions of deepening the face were used to determine the energy indicators of the process of rock destruction. Given the peculiarities of the implementation of the experiment, the work and power of the axial load for the destruction of the rocks of the pit were used for such indicators. It should also be noted that the construction of numerical models is necessary for a complete assessment and prediction of the wear of rock-destructive tools. They should reflect the mechanical system and provide the ability to obtain the values of parameters that are not determined by the results of a laboratory experiment.
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How to cite paper:
Grydzhuk, J., Dzhus, A., Yurych, A., Yurych, L., Dorokhov, M., & Livinskyi, A. (2022). Improving the technique for assessing the condition and predicting the wear of the rock destruction tool equipment . Eastern-European Journal of Enterprise Technologies, 4(1 (118), 103–109. https://doi.org/10.15587/1729-4061.2022.263532