EP0033152B1 - Ausbau für den Bergbau, insbesondere Schildausbau - Google Patents

Ausbau für den Bergbau, insbesondere Schildausbau Download PDF

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Publication number
EP0033152B1
EP0033152B1 EP81100546A EP81100546A EP0033152B1 EP 0033152 B1 EP0033152 B1 EP 0033152B1 EP 81100546 A EP81100546 A EP 81100546A EP 81100546 A EP81100546 A EP 81100546A EP 0033152 B1 EP0033152 B1 EP 0033152B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic cylinder
arms
shield
spreading
expansion
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
Application number
EP81100546A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0033152A1 (de
Inventor
Stanislaw Romanowicz
Wojciech Skoczynski
Edward Janik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centrum Mechanizacji Gornictwa Komag
Original Assignee
Centrum Mechanizacji Gornictwa Komag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Centrum Mechanizacji Gornictwa Komag filed Critical Centrum Mechanizacji Gornictwa Komag
Priority to AT81100546T priority Critical patent/ATE8690T1/de
Publication of EP0033152A1 publication Critical patent/EP0033152A1/de
Application granted granted Critical
Publication of EP0033152B1 publication Critical patent/EP0033152B1/de
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to an indirectly hydraulically expanded expansion for mining, in particular a shield extension, which has at least a pair of articulated expansion levers connected to the cap and the threshold, which are articulated together at their free ends in such a way that they form a horizontal letter V form, the spreading levers are spreadable by a hydraulic cylinder against the cap or the sole threshold, with a wide range of changes in height and resistance to expansion.
  • a shield extension which has at least a pair of articulated expansion levers connected to the cap and the threshold, which are articulated together at their free ends in such a way that they form a horizontal letter V form, the spreading levers are spreadable by a hydraulic cylinder against the cap or the sole threshold, with a wide range of changes in height and resistance to expansion.
  • DE-A1 2507263 has disclosed a shield construction in which, in the case of indirect hydraulic spreading, spreading levers are not connected to one another at their free ends.
  • the indirect expansion system is formed from a system of levers connected in an articulated manner, in the form of a lying letter V.
  • the unit which spreads the lever system and thus indirectly the expansion is a horizontal hydraulic cylinder which is attached at one end to the joint connecting the levers of the spreading system and at the other end to a fixed frame, for example an appropriately designed sole threshold.
  • the expansion system can form a pair of levers arranged in opposite directions, the expansion cylinder connecting the opposite arms of the expansion system to one another.
  • the expansion has not been used in practice for constructional and operational reasons, despite its undoubted advantages, such as a large height range and increased support force with an increase in height while the spreading force of the hydraulic cylinder decreases. In practice, however, a large stroke of the cylinder extending the levers is necessary for full coverage of the possible height range, which, among other things, complicates the traffic of the team within the expansion.
  • the purpose of the invention is to achieve a large multiplication of the stroke of the hydraulic cylinder in relation to the change in height of the extension and a large multiplication of the spreading force of the hydraulic cylinder in relation to the load-bearing capacity of the extension, which increases with the increase in height, while expanding the Traffic space for the team.
  • the purpose is thus achieved by an articulated connection of the hydraulic spreading cylinder to the arms of a known lever system which connects the sole sleeper to the cap, the lever system preferably being set up in such a way that the connecting joint is directed to the side of the break and the spreading cylinder in the direction of the upcoming one Minerals is light.
  • the system of the levers forming the lemniscate arrangement can perform the function of an expansion system, in which case the expansion cylinder connects the expansion plate to the outer lever of the lemniscate arrangement.
  • the spreading levers form a breakage shield and an outer arm of a lemiskate arrangement of the shield extension.
  • the design according to the invention makes it possible to cover a considerable range of changes in the height of the expansion with a relatively small stroke of the expansion cylinder and at the same time maintaining the principle of increasing the expansion resistance with increasing the amount of the expansion.
  • the system used does not limit the team traffic area along the expansion outside the limits that occur in the currently used extensions.
  • the embodiment shown in Fig. 4 has a pair of spreading levers.
  • the expansion lever system forms the breakage removal plate 6 and the outer arm 7.
  • the expansion cylinder 8 is connected in an articulated manner between the breakage removal plate 6 and the cap 2.

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Supports For Plants (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Clamps And Clips (AREA)
  • Transmission Devices (AREA)
EP81100546A 1980-01-25 1981-01-26 Ausbau für den Bergbau, insbesondere Schildausbau Expired EP0033152B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100546T ATE8690T1 (de) 1980-01-25 1981-01-26 Ausbau fuer den bergbau, insbesondere schildausbau.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL221610 1980-01-25
PL1980221610A PL124332B1 (en) 1980-01-25 1980-01-25 Mine lining

Publications (2)

Publication Number Publication Date
EP0033152A1 EP0033152A1 (de) 1981-08-05
EP0033152B1 true EP0033152B1 (de) 1984-07-25

Family

ID=20001044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100546A Expired EP0033152B1 (de) 1980-01-25 1981-01-26 Ausbau für den Bergbau, insbesondere Schildausbau

Country Status (4)

Country Link
EP (1) EP0033152B1 (forum.php)
AT (1) ATE8690T1 (forum.php)
DE (1) DE3164933D1 (forum.php)
PL (1) PL124332B1 (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3627205C1 (en) * 1986-08-11 1988-04-07 Hemscheidt Maschf Hermann Hydraulic self-advancing support assembly in combination with a winning apparatus circulating at the roof and floor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111706378B (zh) * 2020-06-28 2022-09-27 中煤科工开采研究院有限公司 一种薄煤层端头液压支架

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507263A1 (de) * 1975-02-20 1976-09-09 Johannes Winkler Schildausbau mit kappenlenkvorrichtung
FR2340445A1 (fr) * 1976-02-03 1977-09-02 Bochumer Eisen Heintzmann Chevalet de soutenement a bouclier
DE2848506A1 (de) * 1977-11-14 1979-05-17 Voest Ag Schildausbaugestell

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360742A1 (fr) * 1976-05-21 1978-03-03 Bennes Marrel Pile a fleche de soutirage pour un soutenement marchant utilisable dans les mines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507263A1 (de) * 1975-02-20 1976-09-09 Johannes Winkler Schildausbau mit kappenlenkvorrichtung
FR2340445A1 (fr) * 1976-02-03 1977-09-02 Bochumer Eisen Heintzmann Chevalet de soutenement a bouclier
DE2848506A1 (de) * 1977-11-14 1979-05-17 Voest Ag Schildausbaugestell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3627205C1 (en) * 1986-08-11 1988-04-07 Hemscheidt Maschf Hermann Hydraulic self-advancing support assembly in combination with a winning apparatus circulating at the roof and floor

Also Published As

Publication number Publication date
ATE8690T1 (de) 1984-08-15
DE3164933D1 (en) 1984-08-30
PL124332B1 (en) 1983-01-31
PL221610A1 (forum.php) 1981-08-07
EP0033152A1 (de) 1981-08-05

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