MECHANIZED PNEUMATIC SUPPORT Russian patent published in 2005 - IPC

FIELD: mining, particularly for supporting roof in flat-lying or steep seam faces without people present in production face.

SUBSTANCE: support has a number of trays the first of which are rigidly connected to face beams and odd-numbered pneumocylinders. The second trays are connected to goaf beams and even-numbered pneumocylinders. Sections of the support are provided with rests. The first rests are rigidly connected to above outer basic goaf beam in cross-section with odd-numbered and even-numbered pneumocylinders and at odd-numbered tray end from goaf side. The second rests are arranged above inner basic goaf beam of odd-numbered tray and between basic beams on even-numbered trays. Support section trays have different lengths and are arranged in staggered order.

EFFECT: increased operational reliability of the support in unstable wall rock.

4 dwg