SHIELD COVERING FOR SHIELD MINE SUPPORT Russian patent published in 2012 - IPC E21D23/06 

Abstract RU 2461715 C1

FIELD: mining.

SUBSTANCE: shield covering includes cover plate 2, receiving devices 4 for connection of heads of hydraulic cylinders with shield covering and support structure 3 welded under cover plate 2 and having multiple longitudinal cross beams. Besides, at least two longitudinal cross beams consist of H-section beams 10 with upper flange 12 of section, lower flange 11 of section and intermediate flange 13 passing perpendicular to two above mentioned flanges of the section, and distance between upper and lower flanges of section decreases at least on some part of length of H-section beam.

EFFECT: higher bending strength of shield covering and reduction of metal consumption of the design.

20 cl, 14 dwg

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RU 2 461 715 C1

Authors

Onsori Siamak

Khengstler Shtefan

Khan Detlef

Mundri Sebast'Jan M.

Lettau Detlev

Dates

2012-09-20Published

2009-06-19Filed