Structural Layout and Parameters of Hydroimpactors for End Effectors of Mining Machines

The authors substantiate the design of an excavator’s end effector for joint rock crushing and loading. The structural layout and parameters of hydroimpactors included in the end effectors of mining machines are described. The physical model of the hydroimpactors is constructed, tested and adjusted....

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Bibliographic Details
Published in:Journal of mining science 2023-02, Vol.59 (1), p.82-90
Main Authors: Gorodilov, L. V., Korovin, A. N., Kudryavtsev, V. G., Pershin, A. I.
Format: Article
Language:English
Subjects:
Comparative analysis
Construction equipment industry
Design
Earth and Environmental Science
Earth Sciences
End effectors
Excavating machinery
Excavators
Flow rates
Flow velocity
Fluid flow
Fluids
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Layouts
Mineral industry
Mineral Resources
Mining industry
Mining machinery
Parameters
Science of Mining Machines
Simulation models
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Description
Summary:The authors substantiate the design of an excavator’s end effector for joint rock crushing and loading. The structural layout and parameters of hydroimpactors included in the end effectors of mining machines are described. The physical model of the hydroimpactors is constructed, tested and adjusted. The test data on the dynamics and outputs of the model at different power fluid flow rates are compared. The simulation model of the hydroimpactor is constructed and verified using the test data. The capabilities of the hydroimpactors are calculated for the planned modes of operation. For the excavator’s end effectors, it is proposed to use the hydroimpactor design with the lagged return travel of the piston toward the flexible adjustment of the hydroimpactor performance and to reach the required impact capacity at lower flow rates of power fluids.
ISSN:1062-7391
1573-8736
DOI:10.1134/S106273912301009X