Ilyin S.R., Kirichenko V.Ye., Ilyina I.S. Analysis of results of experimental studies of the shaft multiple-rope hoist with monoblock eflecting pulley and automatic system for monitoring parameters

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Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 127

 

Geoteh. meh. 2016, 127, 151-166

ANALYSIS OF RESULTS OF EXPERIMENTAL STUDIES OF THE SHAFT MULTIPLE-ROPE HOIST WITH MONOBLOCK EFLECTING PULLEY AND AUTOMATIC SYSTEM FOR MONITORING PARAMETERS 

¹Ilyin S.R., ²Kirichenko V.Ye., ²Ilyina I.S.

¹IGTM NAS of Ukraine, ²SHEI «National Mining University» 

UDC 622.673.1

Abstract. The article presents materials with experimental studies of multiple-rope hoist with deflecting monoblock pulley, which is equipped with the first in Ukraine hardware-software complex for controlling the rope tensions. The developed scientific methods and software of the complex allow, when the hoist is in operation, receiving, displaying and storing in accumulating database continuous information about the tension of each of the ropes in the plumb areas, each of the rope tension deviations from the mean value, and comparing actual tension deviation with normalized values in the Safety Regulation. The obtained results presented in the article show that the second monoblock pulley installed in the system transforms a short sector of the rope line between the pulleys into concentrator of the unbalanced tensions and leads to the situation when some ropes slide down and slip on the deflecting pulley each 20-40 meters if a skip is lifted up 7 – 8 times per cycle. The rope slippage is so large that it causes a synchronous local inelastic rope slipping on the drive pulley. Basing on the data of measured rope tensions, the developed methodology and software can automatically calculate values for the recommended correction of the lining gutter radius per each of the pulleys and rope length in order to ensure a more even distribution of tensions between the ropes. This extends service life of the ropes, reduces load impact on the shaft equipment and improves safety of the hoist operation.
Keywords: mine multi-rope hoist, deviation of the rope tension, deviations of the rope lengths, multi-rope leading pulley, multi-rope deflecting pulley, system for monitoring the rope tension. 

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About the autors:

Ilyin Sergey Rostislavovich, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher of the Department of Rock Thermoaerodynamics and Automated Systems, N.S. Polyakov Institute of Geotechnical Mechanics of National Academy of Sciences of Ukraine (NASU IGTM), Dnepropetrovsk, Ukraine. This email address is being protected from spambots. You need JavaScript enabled to view it. .

Kirichenko Vladimir Yevgeniyevich, Candidate of Technical Sciences (Ph.D), Associate Professor of the  Department of Automation and Computer Systems , State Higher Educational Institution "National Mining University" (SHEI "NMU"), Dnepropetrovsk, Ukraine.

Ilyina Inna Sergeevna, Candidate of Technical Sciences (Ph.D), Associate Professor of the Department of Mining Mechanics, State Higher Educational Institution "National Mining University" (SHEI "NMU"), Dnepropetrovsk, Ukraine.

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