Selection of the type and design of the shield base of powered support units

The results of the operation of shield powered support units during the excavation of flat and edge coal are presented. It is established that the choice of the type and design of the base of the shield powered support unit greatly depends on the efficiency of the mechanized complex in conditions of soft floor and the presence of «thresholds» in the flat wall. The wellknown designs of the bases of the shield powered support units are presented: solid rigid and divided into elements, i.e. on the right and left skids connected to each other by a tubing hanger and (or) a hinged rod. It is established that the consequence of the fracture of the skid lugworm and the deformation of the hinged rod connecting the bottom of the skid of the divided base of the powered support unit is their displacement relative to each other, both in the vertical and longitudinal planes when the unit passes the «thresholds» in the in the flat wall. Recommendations are proposed for equipping solid rigid and divided into two elements (skids) bases with lifting devices or rotary skids mounted on the toes of the bases, ensuring the movement of the shield powered support units without plowing the ground. A matrix of compliance of types and design features of mechanisms for adapting the bases of the powered support unit to the conditions of use and the mechanism for moving the powered support unit, providing directional movement of the combine and plough shield powered support unit when excavating flat and edge coal, has been developed.

Keywords: powered support unit, shield support unit, base of the powered support unit, construction and type of base, solid rigid base, base divided into two elements, hydraulic jack of movement, mechanism of movement.
For citation:

Turuk Yu. V., Sysoev N. I., Lugantsev B. B., Streltsov S. V., Bogomazov A. A. Selection of the type and design of the shield base of powered support units. MIAB. Mining Inf. Anal. Bull. 2022;(8):121-134. [In Russ]. DOI: 10.25018/0236_1493_2022_8_0_121.

Acknowledgements:
Issue number: 8
Year: 2022
Page number: 121-134
ISBN: 0236-1493
UDK: 622.23.05
DOI: 10.25018/0236_1493_2022_8_0_121
Article receipt date: 26.01.2022
Date of review receipt: 21.03.2022
Date of the editorial board′s decision on the article′s publishing: 10.07.2022
About authors:

Yu.V. Turuk1, Dr. Sci. (Eng.), Assistant Professor, Professor, e-mail: uraturuk@mail.ru, ORCID ID: 0000-0002-4257-0744,
N.I. Sysoev2, Dr. Sci. (Eng.), Professor, e-mail: sysoevngmo@gmail.com, ORCID ID: 0000-0002-0372-427Х, 
B.B. Lugantsev2, Dr. Sci. (Eng.), Assistant Professor, Professor, e-mail: boris4721@mail.ru, ORCID ID: 0000-0002-8296-7922,
S.V. Streltsov1, Cand. Sci. (Eng.), Assistant Professor, e-mail: streltcov_s@rambler.ru, ORCID ID: 0000-0003-4989-4327,
A.A. Bogomazov1, Cand. Sci. (Eng.), Assistant Professor, e-mail: sbog@rambler.ru, ORCID ID: 0000-0002-7176-3393,
1 Shakhty Road Institute, Branch of Platov South-Russian State Polytechnic University (NPI), 346500, Shakhty, Russia,
2 Platov South-Russian State Polytechnic University (NPI), 346428, Novocherkassk, Russia.

 

For contacts:

Yu.V. Turuk, e-mail: uraturuk@mail.ru.

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