FIELD: mining industry, particularly mine roof supports.
SUBSTANCE: section comprises stay jack with shaft and piston, bearing unit, walling unit and beams of walling unit. Shaft is pivotally connected to bearing unit through additional three-hinged link by means of the first and the second connection rods. The second connection rod is pivotally connected to the second beam of walling unit.
EFFECT: increased working area volume due to reducing the number of stay jacks, increased support reliability.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| POWERED SUPPORT SECTION | 2010 |
|
RU2439329C1 |
| POWERED SUPPORT SECTION | 2005 |
|
RU2303699C1 |
| COMBINED-EXCAVATION POWERED STOPING SET | 0 |
|
SU798315A1 |
| PROCESS TO SUPPORT AND CONTROL OVER ROOF IN BREAKAGE FACE, SUPPORT TO IMPLEMENT THIS PROCESS, MECHANISM FOR TELESCOPIC TIGHTENING OF CLEARANCES IN ROOF AND ROCK BURST, CONNECTION OF BASES OF SECTIONS, GUIDING BEAM OF SUPPORT, MECHANISM TO SPREAD SECTIONS OF SUPPORT, MECHANISM TO COLLAPSE SUPPORT, DEFLECTOR OF SUPPORT FLOOR | 2001 |
|
RU2200843C2 |
| HYDRAULIC JACK OF POWERED SUPPORT UNIT | 2007 |
|
RU2329381C1 |
| POWERED SUPPORT FOR STEEP SEAMS | 2009 |
|
RU2411362C1 |
| POWERED SUPPORT FOR STEEP BEDS | 2009 |
|
RU2413846C1 |
| SECTION OF POWERED SUPPORT OF WORKING FACE OF THICK BED WITH FORCED COAL EXTRACTION | 2012 |
|
RU2513952C1 |
| POWER SUPPORT UNIT | 0 |
|
SU1234651A2 |
| METHOD FOR PREPARATORY MINE WORKING AND MECHANIZED SUPPORT FOR ITS IMPLEMENTATION | 2019 |
|
RU2724816C1 |
