FR2311173A1 - Mine roof support for face conveyor - has intermediate cranked arms fitted between rear linkage and actuator cylinders - Google Patents
Mine roof support for face conveyor - has intermediate cranked arms fitted between rear linkage and actuator cylindersInfo
- Publication number
- FR2311173A1 FR2311173A1 FR7614685A FR7614685A FR2311173A1 FR 2311173 A1 FR2311173 A1 FR 2311173A1 FR 7614685 A FR7614685 A FR 7614685A FR 7614685 A FR7614685 A FR 7614685A FR 2311173 A1 FR2311173 A1 FR 2311173A1
- Authority
- FR
- France
- Prior art keywords
- roof support
- face conveyor
- rear linkage
- actuator cylinders
- mine roof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0427—Shield operating devices; Hinges therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
- E21D23/0039—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by a strut or by a row of struts parallel to the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0082—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor specially adapted for vertical or steep gradient seams
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0472—Supports specially adapted for people walking or transporting material
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Framework For Endless Conveyors (AREA)
- Earth Drilling (AREA)
Abstract
A mine support unit is arranged overhanging a face conveyor, and it has a swinging arm arrangement mounted on a sledge (2) at floor level, and carrying a large area roof supporting plate (6) at its end, and it has a horizontal actuator cylinder on the sledge, for adjustment towards and away from the conveyor. It has two 'L' shaped swinging arms (13) in an intermediate position between the linkage system (1, 10) carrying the roof support and a pair of actuator cylinders (4) further forwards, which raise and lower the roof support. Each 'L' shaped arm has a pivot point on the rear linkage and on a support (3) for the bottom of the first cylinder (4).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752135020A SU641115A2 (en) | 1975-05-16 | 1975-05-16 | Powered roof support section |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2311173A1 true FR2311173A1 (en) | 1976-12-10 |
FR2311173B1 FR2311173B1 (en) | 1978-05-19 |
Family
ID=20619688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7614685A Granted FR2311173A1 (en) | 1975-05-16 | 1976-05-14 | Mine roof support for face conveyor - has intermediate cranked arms fitted between rear linkage and actuator cylinders |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2621589A1 (en) |
FR (1) | FR2311173A1 (en) |
SU (1) | SU641115A2 (en) |
-
1975
- 1975-05-16 SU SU752135020A patent/SU641115A2/en active
-
1976
- 1976-05-14 FR FR7614685A patent/FR2311173A1/en active Granted
- 1976-05-14 DE DE19762621589 patent/DE2621589A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2311173B1 (en) | 1978-05-19 |
SU641115A2 (en) | 1979-01-05 |
DE2621589A1 (en) | 1976-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |