ES400459A1 - Mine roof support - Google Patents
Mine roof supportInfo
- Publication number
- ES400459A1 ES400459A1 ES400459A ES400459A ES400459A1 ES 400459 A1 ES400459 A1 ES 400459A1 ES 400459 A ES400459 A ES 400459A ES 400459 A ES400459 A ES 400459A ES 400459 A1 ES400459 A1 ES 400459A1
- Authority
- ES
- Spain
- Prior art keywords
- shield
- shield unit
- plates
- debris
- gap
- 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.)
- Expired
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
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
-
- 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
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)
- Excavating Of Shafts Or Tunnels (AREA)
- Actuator (AREA)
- Processing Of Solid Wastes (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A closure and rectification mechanism for mine shield supports that has gap closure plates between adjacent shield units and plates that are attached so that they can be pushed to the deck, start shield, and debris shield of the shield unit supported by coaxial guide tubes on the sides of the roof and of the debris of the shield unit, in which the limiting stops of the gap closure plates are pressed against the side wall of the Adjacent shield unit, characterized by the fact that in the direction of the axes of symmetry of the coaxial guide tubes (10 and 11) that slide one inside the other and that belong to each plate (5) is arranged a push rod (18), one end of which is particulate with the piston rod (21) of the hydraulic rectifier cylinder (19), rotatably fixed to the inner wall of the shield unit and the other e End to the limit stop (5) of the gap closing plate by means of unions (13a or 17). (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUBA2550A HU162717B (en) | 1971-03-05 | 1971-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES400459A1 true ES400459A1 (en) | 1974-12-16 |
Family
ID=10993327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES400459A Expired ES400459A1 (en) | 1971-03-05 | 1972-03-04 | Mine roof support |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5512520B1 (en) |
AT (1) | AT318522B (en) |
AU (1) | AU459296B2 (en) |
BE (1) | BE780246A (en) |
DE (2) | DE2210757B2 (en) |
ES (1) | ES400459A1 (en) |
FR (1) | FR2128636B1 (en) |
GB (1) | GB1381544A (en) |
HU (1) | HU162717B (en) |
PL (1) | PL75035B1 (en) |
YU (1) | YU34450B (en) |
ZA (1) | ZA721304B (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2308424C3 (en) * | 1973-02-21 | 1982-09-16 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Dust extraction device for mining operations |
DE2319909C2 (en) * | 1973-04-19 | 1982-07-01 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Shield support frame with support and delay device that can be opened to the side |
DE2407227B1 (en) * | 1974-02-15 | 1975-06-05 | Bochumer Eisen Heintzmann | Hang end cap arrangement for shield support frames |
DE2547853C2 (en) * | 1975-10-25 | 1984-04-05 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Shield support unit |
GB1568967A (en) * | 1976-02-06 | 1980-06-11 | Dowty Mining Equipment Ltd | Mine roof support |
DE2808205C2 (en) * | 1978-02-25 | 1985-10-10 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulic control for a gap cover arranged on the cap or on the breakage shield of a walking support |
DE2832875C2 (en) * | 1978-07-27 | 1985-11-07 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulic control for a gap covering and alignment device arranged on one side on the cap or on the fracture shield of an extension member |
DE2853050C2 (en) * | 1978-12-08 | 1985-10-03 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Lateral sealing device for a support frame in underground mining |
DE2942269A1 (en) * | 1979-10-19 | 1981-04-30 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | GAP COVERING FOR SCREAMING AND THE LIKE |
HU179856B (en) * | 1980-05-06 | 1982-12-28 | Varpalotai Szenbanyak | Apparatus for nining particularly expolating thick seams |
DE3833842C1 (en) * | 1988-10-05 | 1989-08-31 | Bochumer Eisenhuette Heintzmann Gmbh & Co Kg, 4630 Bochum, De | Powered support assembly |
DE4214690C2 (en) * | 1992-05-02 | 1998-09-17 | Dbt Gmbh | Gap cover for removal frames, in particular shield removal frames |
CN108222934B (en) | 2015-06-24 | 2019-11-05 | 北京中矿创新联盟能源环境科学研究院 | Equipment system of roadway-free coal-pillar-free self-retained roadway mining method |
CN117108331B (en) * | 2023-10-23 | 2024-01-02 | 山西新龙重工高分子科技有限公司 | Unit type hydraulic support |
-
1971
- 1971-03-05 HU HUBA2550A patent/HU162717B/hu unknown
-
1972
- 1972-02-28 ZA ZA721304A patent/ZA721304B/en unknown
- 1972-02-29 AT AT165372A patent/AT318522B/en not_active IP Right Cessation
- 1972-03-02 YU YU525/72A patent/YU34450B/en unknown
- 1972-03-03 PL PL1972153871A patent/PL75035B1/en unknown
- 1972-03-03 FR FR7207604A patent/FR2128636B1/fr not_active Expired
- 1972-03-04 JP JP2269972A patent/JPS5512520B1/ja active Pending
- 1972-03-04 ES ES400459A patent/ES400459A1/en not_active Expired
- 1972-03-06 GB GB1037572A patent/GB1381544A/en not_active Expired
- 1972-03-06 AU AU39649/72A patent/AU459296B2/en not_active Expired
- 1972-03-06 DE DE19722210757 patent/DE2210757B2/en not_active Ceased
- 1972-03-06 BE BE780246A patent/BE780246A/en not_active IP Right Cessation
- 1972-03-06 DE DE19727208525U patent/DE7208525U/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU459296B2 (en) | 1975-03-05 |
JPS5512520B1 (en) | 1980-04-02 |
YU52572A (en) | 1978-12-31 |
DE7208525U (en) | 1978-08-24 |
BE780246A (en) | 1972-07-03 |
PL75035B1 (en) | 1974-12-31 |
AT318522B (en) | 1974-10-25 |
GB1381544A (en) | 1975-01-22 |
DE2210757B2 (en) | 1977-10-20 |
AU3964972A (en) | 1973-09-13 |
FR2128636B1 (en) | 1981-04-30 |
DE2210757A1 (en) | 1972-11-02 |
FR2128636A1 (en) | 1972-10-20 |
ZA721304B (en) | 1973-06-27 |
YU34450B (en) | 1979-07-10 |
HU162717B (en) | 1973-04-28 |
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