EP0033152B1 - Mining roof support, in particular shield-type support - Google Patents

Mining roof support, in particular shield-type support 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
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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
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German (de)
French (fr)
Other versions
EP0033152A1 (en
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
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Publication date
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Priority to AT81100546T priority Critical patent/ATE8690T1/en
Publication of EP0033152A1 publication Critical patent/EP0033152A1/en
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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.

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  • 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)
  • Transmission Devices (AREA)
  • Clamps And Clips (AREA)

Abstract

1. A directly hydraulically spread roof support for mining, in particular a shield-type support, which has at least one pair of expanding arms (3, 4) pivotably connected to the horn (2) and the bed plate (1), which arms are pivotably connected together at their free ends in such manner that they form a tilted V-shape, the spreading arms being spreadable by means of a hydraulic cylinder (5) against the horn or against the bed plate, characterised in that the hydraulic cylinder (5) is arranged between the spreading arms (3, 4) and the ends of the hydraulic cylinder are connected to the spreading arms (3, 4) at arbitrary points of their length.

Description

Die Erfindung bezieht sich auf einen mittelbar hydraulisch gespreizten Ausbau für den Bergbau, insbesondere einen Schildausbau, welcher mindestens ein Paar von gelenkartig mit der Kappe und der Sohlenschwelle verbundenen Spreizhebeln aufweist, die an ihren freien Enden miteinander gelenkartig solcherweise verbunden sind, daß sie einen liegenden Buchstaben V bilden, wobei die Spreizhebel durch einen Hydraulikzylinder gegen die Kappe bzw. die Sohlenschwelle spreizbar sind, mit weitem Bereich von Höhen- und Ausbauwiderstandsänderungen. Ein derartiger Ausbau ist durch die PL-A 63 639 bekannt geworden.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. Such an expansion has become known from PL-A 63 639.

Weiter ist durch die DE-A1 2507263 ein Schildausbau bekannt geworden, bei welchem im Falle einer mittelbaren hydraulischen Spreizung Spreizhebel nicht an ihren freien Enden miteinander verbunden sind.Furthermore, 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.

Bei dem aus der PL-A 63 639 bekannten Ausbau ist das mittelbare Spreizsystem aus einem System von gelenkartig verbundenen Hebeln, in Form eines liegenden Buchstabens V, gebildet. Die das Hebelsystem und somit mittelbar den Ausbau spreizende Einheit ist ein waagerechter hydraulischer Zylinder, der mit einem Ende an dem die Hebel des Spreizsystems verbindenden Gelenk und mit dem anderen Ende an einem festen Gestell, zum Beispiel einer angemessen ausgelegten Sohlenschwelle befestigt ist. Das Spreizsystem kann ein Paar von gegenläufig angeordneten Hebeln bilden, wobei der Spreizzylinder die gegenüberliegenden Arme des Spreizsystems miteinander verbindet. Der Ausbau hat jedoch aus konstruktiv-betrieblichen Gründen keinen praktischen Einsatz gefunden, trotz dessen unzweifelhafter Vorteile, wie großer Höhenbereich und Steigerung der Stützkraft mit Steigerung der Höhe bei gleichzeitig abfallender Spreizkraft des hydraulischen Zylinders. Praktisch ist jedoch für eine volle Deckung des möglichen Höhenbereiches ein großer Hub des die Hebel streckenden Zylinders notwendig, was unter anderem den Verkehr der Mannschaft innerhalb des Ausbaus erschwert.In the expansion known from PL-A 63 639, 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. However, 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.

Zweck der Erfindung ist die Erreichung einer großen Multiplikation des Hubs des hydraulischen Zylinders in bezug auf die Höhenänderung des Ausbaus und einer broßen Multiplikation der Spreizkraft des hydraulischen Zylinders in bezug auf die Tragfähigkeit des Ausbaus, welche mit der Steigerung der Höhe steigt, bei gleichzeitiger Erweiterung des Verkehrsraums für die Mannschaft.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.

Dies wird mit einem Ausbau der eingangs beschriebenen Art erfindungsgemäß dadurch erreicht, daß der Hydraulikzylinder zwischen den Spreizhebeln und die Enden des Hydraulikzylinders mit den Spreizhebeln in beliebigen Punkten deren Länge gelenkartig verhunden sind.This is achieved according to the invention with an expansion of the type described in the introduction in that the hydraulic cylinder between the spreader levers and the ends of the hydraulic cylinder are articulated with the spreader levers at any point in their length.

Erfindungsgemäß ist der Zweck also durch eine gelenkartige Verbindung des hydraulischen Spreizzylinders mit den Armen eines bekannten, die Sohlenschwelle mit der Kappe verbindenden Hebelsystems erreicht, wobei das Hebelsystem vorzugsweise derart aufzustellen ist, daß das Verbindungsgelenk zur Seite des Bruchs gerichtet und der Spreizzylinder in Richtung des anstehenden Minerals geneight ist.According to the invention, 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.

In bekannten Schildausbauten, insbesondere des Lemniskatentpys, kann das System der die Lemniskatenanordnung bildenden Hebel die Funktion eines Spreizsystems erfüllen, wobei in diesem Falle der Spreizzylinder den Ausbauschild mit dem Außenhebel der Lemniskatenanordnung verbindet. Die Spreizhebel bilden dabei einen Bruchausbauschild und einen Außenarm einer Lemiskatenanordnung des Schildausbaus.In known shield configurations, in particular of the lemniscate system, 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.

Die erfindungsgemäße Auslegung gestattet es, einen beträchtlichen Bereich der Höhenänderungen des Ausbaus bei verhältnismäßig geringem Hub des Spreizzylinders und gleichzeitiger Aufrechterhaltung des Prinzips der Steigerung des Ausbauwiderstandes mit Steigerung der Höhe der Spreizung zu überdecken. Darüber hinaus beschränkt das verwendete System das Mannschaftsverkehrsfeld längs des Ausbaus außerhalb der in derzeitig verwendenten Ausbauten auftretenden Grenzen nicht.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. In addition, the system used does not limit the team traffic area along the expansion outside the limits that occur in the currently used extensions.

Die Erfindung ist im folgenden an Ausführungsbeispielen näher erläutert. In der zugehörigen Zeichnung zeigen :

  • Figur 1 eine Seitenansicht des Schildausbaus mit mehrfachem Spreizsystem ;
  • Figuren 2, 3 und 4 Seitenansichten des Schildausbaus in Ausführungsbeispielen.
  • Wie in Fig. 1 dargestellt, weist der erfindungsgemäße Ausbau zwischen der Sohlenschwelle 1 und der Kappe 2 mindestens ein Paar von Hebeln 3, 4 auf, welche mit dem Ende an der Kappe 2 und an der Sohlenschwelle 1 gelenkartig und untereinander solcherweise gelenkartig verbunden sind, daß sie die Form eines liegenden, mit der Spitze zum Bruch gerichteten Buchstabens V aufweisen. Zwischen den Hebeln 3, 4 ist der Hydraulikzylinder 5 angeordnet, dessen Enden mit den Hebeln 3, 4 gelenkartig solcherweise verbunden sind, daß das Spreizen des Hydraulikzylinders 5 das Aufmachen der Hebel 3, 4 und somit eine Änderung der Ausbauhöhe begleitet. Eine besonders vorzügliche Kraftanordnung tritt im Falle der Neigung des Hydraulikzylinders 5 zur Seite der Front des anstehenden Gesteins auf.
  • Für die Schildausbauten eines Lemniskatentyps bilden das Spreizhebelsystem der Bruchausbauschild 6 und der Außenarm 7 der Lemniskatenanordnung, zwischen welchen der Spreizzylinder 5 eingesetzt ist.
  • Die in Fig. 2 und Fig. 3 dargestellten Ausführungsbeispiele entsprechen im wesentlichen dem Beispiel nach Fig. 1. Der Spreizzylinder 8 ist zwischen dem Bruchausbauschild 6 und der Kappe 2 angeordnet. Weiter ist in der Lösung nach Fig. 3 der Spreizzylinder 9 zwischen dem Bruchausbauschild 6 und der Sohlenschwelle 1 eingesetzt.
The invention is explained in more detail below using exemplary embodiments. In the accompanying drawing:
  • Figure 1 is a side view of the shield removal with multiple spreading system;
  • Figures 2, 3 and 4 side views of the shield removal in exemplary embodiments.
  • As shown in Fig. 1, the expansion according to the invention between the sole sleeper 1 and the cap 2 has at least one pair of levers 3, 4, which are connected at the end to the cap 2 and at the sole sleeper 1 in an articulated manner and in such an articulated manner to one another, that they have the shape of a lying letter V with the tip pointing towards the break. Between the levers 3, 4, the hydraulic cylinder 5 is arranged, the ends of which are articulated to the levers 3, 4 in such a way that the spreading of the hydraulic cylinder 5 accompanies the opening of the levers 3, 4 and thus a change in the height of removal. A particularly excellent force arrangement occurs in the case of the inclination of the hydraulic cylinder 5 to the side of the front of the rock.
  • For the shield extensions of a lemniscate type, the spreading lever system forms the fracture removal shield 6 and the outer arm 7 of the lemniscate arrangement, between which the spreading cylinder 5 is inserted.
  • The exemplary embodiments shown in FIGS. 2 and 3 essentially correspond to the example according to FIG. 1. The spreading cylinder 8 is arranged between the breakage removal plate 6 and the cap 2. 3 is the expansion cylinder 9 between the Fracture removal shield 6 and the sole sleeper 1 used.

Das in Fig. 4 gezeigte Ausführungsbeispiel weist ein Paar von Spreizhebeln auf. Das Spreizhebelsystem bildet der Bruchausbauschild 6 und der Außenarm 7. Zwischen dem Bruchausbauschild 6 und der Kappe 2 ist gelenkartig der Spreizzylinder 8 angeschlossen.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.

Claims (3)

1. A directly hydraulically spread roof support for mining, in particular a shield-type support, which has at least one pair of expanding arms (3, 4) pivotably connected to the horn (2) and the bed plate (1), which arms are pivotably connected together at their free ends in such manner that they form a tilted V-shape, the spreading arms being spreadable by means of a hydraulic cylinder (5) against the horn or against the bed plate, characterised in that the hydraulic cylinder (5) is arranged between the spreading arms (3, 4) and the ends of the hydraulic cylinder are connected to the spreading arms (3, 4) at arbitrary points of their length.
2. Mining roof support according to claim 1, characterised in that the hydraulic cylinder (5) is inclined in the direction of the face of the outcrop of mineral.
3. Mining roof support according to claim 1 or 2, characterised in that the spreading arms (3, 4) form a roof support shield (6) and an outer arm (7) of a lemniscate arrangement of the shield roof support.
EP81100546A 1980-01-25 1981-01-26 Mining roof support, in particular shield-type support Expired EP0033152B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100546T ATE8690T1 (en) 1980-01-25 1981-01-26 REMOVAL FOR MINING, ESPECIALLY SHIELD REMOVAL.

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=20001044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100546A Expired EP0033152B1 (en) 1980-01-25 1981-01-26 Mining roof support, in particular shield-type support

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EP (1) EP0033152B1 (en)
AT (1) ATE8690T1 (en)
DE (1) DE3164933D1 (en)
PL (1) PL124332B1 (en)

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 (en) * 2020-06-28 2022-09-27 中煤科工开采研究院有限公司 Hydraulic support for end of thin coal seam

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507263A1 (en) * 1975-02-20 1976-09-09 Johannes Winkler Shield support for mines - has equipment for elastically stabilising cap to floor base
FR2340445A1 (en) * 1976-02-03 1977-09-02 Bochumer Eisen Heintzmann SHIELD SUPPORT EASEL
DE2848506A1 (en) * 1977-11-14 1979-05-17 Voest Ag SHIELD STRUCTURE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360742A1 (en) * 1976-05-21 1978-03-03 Bennes Marrel Advancing pit prop for deep seams - has side support with opening and flap for delivery of cut material onto conveyor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507263A1 (en) * 1975-02-20 1976-09-09 Johannes Winkler Shield support for mines - has equipment for elastically stabilising cap to floor base
FR2340445A1 (en) * 1976-02-03 1977-09-02 Bochumer Eisen Heintzmann SHIELD SUPPORT EASEL
DE2848506A1 (en) * 1977-11-14 1979-05-17 Voest Ag SHIELD STRUCTURE

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
EP0033152A1 (en) 1981-08-05
DE3164933D1 (en) 1984-08-30
PL221610A1 (en) 1981-08-07
PL124332B1 (en) 1983-01-31
ATE8690T1 (en) 1984-08-15

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