FIELD: support of mine workings. SUBSTANCE: roofing has capping with supporting wedges, canopy hinged with capping, hydraulic cylinder controlling the canopy. Capping has pocket opened from below and accommodating canopy made with face cantilever, and supporting wedges installed parallel to packing longitudinal axis. Hydraulic cylinder controlling the canopy is located square to capping longitudinal axis for engagement of hydraulic cylinder with supporting wedges. Hydraulic cylinder controlling the canopy may be installed on canopy and arranged between supporting wedges rigidly secured in capping and made with stops on opposite sides. EFFECT: increased supporting force and resistance of face part of powered support-canopy with preserved minimal height of roofing, reduced minimum height of support moving apart, reduced lower limit of extracted thickness with help of powered support, improved state of roof in zone of breakage face, higher technical level and maintainability of roofing of powered support unit. 6 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CEILING OF SECTION OF MECHANIZED SUPPORT | 2002 |
|
RU2232897C1 |
| MECHANIZED SUPPORT FOR LEAVING UNDERGROUND WORKINGS | 1995 |
|
RU2083845C1 |
| DEVICE FOR JOINING OF CAPPING AND ROOFING OF POWERED SUPPORT UNIT | 1999 |
|
RU2169268C1 |
| METHOD FOR INTERACTION OF SUPPORT UNIT WITH SIDE ROCKS | 1990 |
|
RU2028452C1 |
| WORKING-FACE CANTILEVER BEAM FOR ROOF SUPPORT | 0 |
|
SU1364740A1 |
| METHOD FOR SUPPORT OF LONGWALL FACE-TO-GATE JUNCTION | 1992 |
|
RU2067176C1 |
| POWERED SUPPORT FOR THICK SEAMS | 1990 |
|
RU2010976C1 |
| ROOFING OF POWERED SUPPORT UNIT | 2000 |
|
RU2178083C1 |
| SELF-ADVANCING DRIFT SUPPORT | 1991 |
|
RU2012816C1 |
| SECTION OF POWERED SUPPORT | 1996 |
|
RU2134792C1 |
