Rubel A.O. Research of forces acting on the skip turn angles in the structures of the rope-profile guides

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Parent Category: Geo-Technical Mechanics, 2021

Category: Geo-Technical Mechanics, 2021, № 156

Geoteh. meh. 2021, 156, 118-137

https://doi.org/10.15407/geotm2021.156.118

 

RESEARCH OF FORCES ACTING ON THE SKIP TURN ANGLES IN THE STRUCTURES OF THE ROPE-PROFILE GUIDES

¹Rubel A.О.

¹State Enerprise «United company «Ukrvuglerekstrukturyzatsiya»

UDC 622.6:622.674:622.673.1                               

Language: Russian

Abstract. For the vessels moving, vertical shafts are equipped with rigid and flexible equipment. In the shaft equipment, various guides are used: for rigid ones - box-shaped, rail and wooden guides; for flexible ones - steel ropes.
The rotary loads which occur in rope and rope-profile guides (hereinafter: - checkpoint - or guide) under the actiong of dissipative forces impacting on the angles of rotation of the vessels (skips) were studied, namely: - twisting of the ropes; - aerodynamic forces; - the action of the eccentricity of the vessel load in the frontal and lateral planes. The advantages and disadvantages of flexible and rigid shaft equipment were investigated, schemes for the arrangement of vessels in the shaft with a checkpoint were developed, and comparative analysis of indicators was carried out. Equations were formulated for calculating a vessel motion in the shaft with the checkpoint with taking into account the action of the following forces: - effect of tension; - torsion; - aerodynamic forces; - eccentricity of vessel loading, and others. On the basis of initial data, calculations were performed, and the results were summarized in a table for comparing the main characteristics of the rope and rope-profile shaft equipment. Development of the new design solutions for ensuring the vessels motion along the rope-profile guides will allow:
- to reduce capital costs during construction, due to a decrease in the diameter of the shaft;
- to reduce the metal consumption for the shaft equipment in comparison with the rigid shaft equipment ;
- to reduce the impact of moving vessels on the elements of the shaft equipment by reducing the angles of rotation;
- to increase the reliability and service life of the shaft equipment ;
- to reduce the aerodynamic resistance of the shaft equipment to the comparable level with flexible shaft equipment;
- to increase the level of reliability and safety of operation of the shaft equipment by ensuring safe clearance measures;
- to eliminate the need to use fenders;
- to increase the service life of the guides to the level of the guides of the rigid shaft equipment .
The result of the introduction of the developed structures and methods for their calculation is an increase in the level of safety and a reduction in costs when extracting minerals from deep horizons.
Keywords: mine shafts, rope-profile guides, cantilever firing, angles of rotation of vessels.

 
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About the author:

Rubel Andriі Oleksandrovych, Candidate of Technical Sciences (Ph.D.), Chief Power Engineer, State Enterprise «United Company «Ukrvuglerekstrukturyzatsiya», Kyiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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