FIELD: mining industry.
SUBSTANCE: ceiling has screen, inside of which in guides extending screen is mounted and hydro-jack for moving extending screen. Ceiling is provided with guiding beam rigidly fixed on screen and cylindrical groove, cut-in gear with possible movement along guiding beam and cylindrical guide positioned transversely to screen and also with possible removal from them. Cut-in gear has saw, mechanically connected to engine through reducer, on body of which ring fixing is rigidly mounted for cylindrical guide.
EFFECT: higher reliability.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| POWERED SUPPORT SECTION COVERING | 2004 |
|
RU2276270C1 |
| CEILING OF MECHANIZED SUPPORT SECTION | 2003 |
|
RU2243380C1 |
| POWERED SUPPORT SECTION | 0 |
|
SU1102976A1 |
| UNIVERSAL MINERAL EXTRACTION COMPLEX | 1997 |
|
RU2130554C1 |
| OUTFIT FOR MINING THICK STEEPLY DIPPING SEAMS | 1991 |
|
RU2037049C1 |
| POWERED TUNNELING AND STOPING COMPLEX (UNIT) | 1998 |
|
RU2172410C2 |
| POWERED SUPPORT SECTION ROOF | 0 |
|
SU1439257A1 |
| METHOD FOR ADVANCING POWERED SUPPORT FOR FRONTAL AND PLOUGH POWERED MINING COMPLEXES AND UNITS AND POWERED SUPPORT FOR ITS REALIZATION | 1990 |
|
RU2021524C1 |
| POWERED SUPPORT ROOF | 0 |
|
SU1573200A1 |
| ROOFING OF POWERED SUPPORT UNIT | 1992 |
|
RU2015339C1 |
