EP0033152A1 - 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
EP0033152A1
EP0033152A1 EP81100546A EP81100546A EP0033152A1 EP 0033152 A1 EP0033152 A1 EP 0033152A1 EP 81100546 A EP81100546 A EP 81100546A EP 81100546 A EP81100546 A EP 81100546A EP 0033152 A1 EP0033152 A1 EP 0033152A1
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EP
European Patent Office
Prior art keywords
levers
expansion
hydraulic cylinder
shield
spreading
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
Application number
EP81100546A
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German (de)
French (fr)
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EP0033152B1 (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
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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
Application granted granted Critical
Publication of EP0033152B1 publication Critical patent/EP0033152B1/en
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    • 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 a mining expansion, in particular a shield extension, with a wide range of height and expansion resistance changes and with an indirect spreading system.
  • a mining extension with an indirect spreading system is known from the Polish patent specification No. 63 639, which 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 structural and operational reasons, despite its undoubted advantages, such as a large height range and an increase in support force with an increase in height while the spreading force of the hydraulic cylinder decreases.
  • 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.
  • an indirectly hydraulically spreading mining expansion which has at least a pair of articulated levers connected to the cap and the sole sleeper, which are articulated to one another in such a way that they form a lying letter V, in that between the spreading levers a hydraulic cylinder is arranged, the ends of which are articulated to the levers at any point along their length.
  • the purpose is thus achieved by an articulated connection of the hydraulic expansion cylinder to the arms of a known lever system connecting 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 expansion cylinder in the direction of the rock is inclined.
  • the system of the levers forming the lemniscate arrangement can perform the function of a spreading system, in which case the spreading cylinder connects the removal plate to the outer lever of the lemniscate arrangement.
  • 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 expansion according to the invention between the sole threshold 1 and the cap 2 has at least a pair of levers 3, 4 which is connected articulated with the end on the cap 2 and to the sole threshold 1 and to each other such as articulated ' are that they have the shape of a lying letter V with the tip pointing towards the break.
  • the hydraulic cylinder 5 is arranged, the ends of which are articulated with the levers 3, 4. tig are connected in such a way that the expansion of the hydraulic cylinder 5 accompanies the opening of the levers 3, 4 and thus a change in the height.
  • a special one excellent force arrangement occurs in the case of the inclination of the hydraulic cylinder 5 to the side of the front of the rock.
  • 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.
  • 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. Furthermore, in the solution according to FIG. 3, the spreading cylinder 9 is inserted between the fracture removal shield 6 and the sole sleeper 1.
  • 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.
  • the mining expansion shown in the embodiment according to FIG. 5 corresponds to the embodiment according to FIG. 4 and has the hydraulic cylinder 10 fastened in an articulated manner between the cap 2 and the sole sleeper 1.
  • the spreading cylinder 5, on the other hand, is connected in an articulated manner to the fracture removal shield 6 and the arm 7.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Clamps And Clips (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)

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 Bergbau-Ausbau, insbesondere einen Schildausbau, mit weitem Bereich von Höhen- und Ausbauwiderstandsänderungen und mit mittelbarem Spreizsystem.The invention relates to a mining expansion, in particular a shield extension, with a wide range of height and expansion resistance changes and with an indirect spreading system.

Aus der polnischen Patentschrift Nr. 63 639 ist ein Berbau-Ausbau mit mittelbarem Spreizsystem bekannt, das aus einem System von gelenkartig verbundenen Hebeln, in Form eines liegenden Buchstabens V, gebildet ist. 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.A mining extension with an indirect spreading system is known from the Polish patent specification No. 63 639, which 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 structural and operational reasons, despite its undoubted advantages, such as a large height range and an increase in 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 großen 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 mittelbar hydraulisch gespreizten Bergbau-Ausbau, welcher mindestens ein Paar von gelenkartig mit der Kappe und der Sohlenschwelle verbundene Hebel aufweist, die miteinander gelenkartig solcherweise verbunden sind, daß sie einen liegenden Buchstaben V bilden, erfindungsgemäß dadurch erreicht, daß zwischen den Spreizhebeln ein Hydraulikzylinder angeordnet ist, dessen Enden mit den Hebeln in beliebigen Punkten deren Länge gelenkartig verbunden sind.This is achieved according to the invention with an indirectly hydraulically spreading mining expansion, which has at least a pair of articulated levers connected to the cap and the sole sleeper, which are articulated to one another in such a way that they form a lying letter V, in that between the spreading levers a hydraulic cylinder is arranged, the ends of which are articulated to the levers at any point along 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 Gesteins geneigt ist.According to the invention, the purpose is thus achieved by an articulated connection of the hydraulic expansion cylinder to the arms of a known lever system connecting 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 expansion cylinder in the direction of the rock is inclined.

In bekannten Schildausbauten; insbesondere des Lemniskatentyps, 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.In known shield extensions; In particular of the lemniscate type, the system of the levers forming the lemniscate arrangement can perform the function of a spreading system, in which case the spreading cylinder connects the removal plate to the outer lever of the lemniscate arrangement.

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 verwendeten 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:

  • Fig. 1 eine Seitenansicht des Schildausbaus mit mehrfachem Spreizsystem;
  • Fig. 2, 3, 4 und 5: Seitenansichten des Schildausbaus in Ausführungsbeispielen.
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.
  • 2, 3, 4 and 5: side views of the shield removal in exemplary embodiments.

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.As shown in Fig. 1, the expansion according to the invention between the sole threshold 1 and the cap 2 has at least a pair of levers 3, 4 which is connected articulated with the end on the cap 2 and to the sole threshold 1 and to each other such as articulated ' are that they have the shape of a lying letter V with the tip pointing towards the break.

Zwischen den Hebeln 3, 4 ist der Hydraulikzylinder 5 angeordnet, dessen Enden mit den Hebeln 3, 4 gelenkar- . tig 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.Between the levers 3, 4, the hydraulic cylinder 5 is arranged, the ends of which are articulated with the levers 3, 4. tig are connected in such a way that the expansion of the hydraulic cylinder 5 accompanies the opening of the levers 3, 4 and thus a change in the height. A special one excellent force arrangement occurs in the case of the inclination of the hydraulic cylinder 5 to the side of the front of the rock.

Für die Schildausbauten eines Lemniskatentyps bilden das Spreizhebelsystem der Bruchausbauschild 6 und der Außenarm 7 der Lemniskatenanordnung, zwischen welchen der Spreizzylinder 5 eingesetzt ist.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.

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 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. Furthermore, in the solution according to FIG. 3, the spreading cylinder 9 is inserted between the fracture removal shield 6 and the sole sleeper 1.

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.

Der im Ausführungsbeispiel nach Fig. 5 dargestellte Bergbau-Ausbau entspricht dem Ausführungsbeispiel nach Fig. 4 und weist den zwischen der Kappe 2 und der.Sohlenschwelle 1 gelenkartig befestigten Hydraulikzylinder 10 auf. Der Spreizzylinder 5 ist hingegen gelenkartig mit dem Bruchausbauschild 6 und dem Arm 7 verbunden.The mining expansion shown in the embodiment according to FIG. 5 corresponds to the embodiment according to FIG. 4 and has the hydraulic cylinder 10 fastened in an articulated manner between the cap 2 and the sole sleeper 1. The spreading cylinder 5, on the other hand, is connected in an articulated manner to the fracture removal shield 6 and the arm 7.

Claims (3)

1. Mittelbar hydraulisch gespreizter Bergbau-Ausbau, insbesondere Schildausbau, welcher mindestens ein Paar von gelenkartig mit der Kappe (2) und der Sohlenschwelle (1) verbundene Hebel (3,4) aufweist, die miteinander gelenkartig solcherweise verbunden sind, daß sie einen liegenden Buchstaben V bilden, dadurch gekennzeichnet, daß zwischen den Spreizhebeln (3, 4) ein Hydraulikzylinder (5) angeordnet ist, dessen Enden mit den Hebeln (3, 4) in beliebigen Punkten deren Länge gelenkartig verbunden sind.1. Indirectly hydraulically expanded mining expansion, in particular shield expansion, which has at least one pair of levers (3, 4) connected to the cap (2) and the sole sleeper (1) in an articulated manner, which are connected to one another in an articulated manner such that they lie horizontally Letters V form, characterized in that a hydraulic cylinder (5) is arranged between the spreading levers (3, 4), the ends of which are connected in an articulated manner to the levers (3, 4) at arbitrary points. 2. Bergbau-Ausbau nach Anspruch 1, dadurch gekennzeichnet, daß der Hydraulikzylinder (5) in Richtung der Front des anstehenden Gesteins geneigt ist.2. Mining expansion according to claim 1, characterized in that the hydraulic cylinder (5) is inclined in the direction of the front of the upcoming rock. 3. Bergbau-Ausbau nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Hebel (3, 4) des Hebewerks einen Bruchausbauschild (6) und einen Außenarm (7) einer Lemniskatenanordnung des Schildausbaus bilden.3. Mining expansion according to claim 1 or 2, characterized in that the levers (3, 4) of the elevator form a breakage shield (6) and an outer arm (7) of a lemniscate arrangement of the shield extension.
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
PL221610 1980-01-25
PL1980221610A PL124332B1 (en) 1980-01-25 1980-01-25 Mine lining

Publications (2)

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

Country Status (4)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602545A1 (en) * 1986-08-11 1988-02-12 Hemscheidt Maschf Hermann Walking hydraulic pit support
CN111706378A (en) * 2020-06-28 2020-09-25 中煤科工开采研究院有限公司 Hydraulic support for end of thin coal seam

Citations (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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507263C2 (en) * 1975-02-20 1984-09-13 Johannes 4300 Essen Winkler Shield support with stabilization device
GB1569822A (en) * 1976-02-03 1980-06-18 Bochumer Eisen Heintzmann Roof-supporting frame of the caving shield type for underground workings in mines
AT350991B (en) * 1977-11-14 1979-06-25 Voest Ag SHIELD STRUCTURE

Patent Citations (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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Soviet Inventions Illustrated" Week B18, 14. Juni 79 Section Q 49 & SU - A - 612 044. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602545A1 (en) * 1986-08-11 1988-02-12 Hemscheidt Maschf Hermann Walking hydraulic pit support
CN111706378A (en) * 2020-06-28 2020-09-25 中煤科工开采研究院有限公司 Hydraulic support for end of thin coal seam

Also Published As

Publication number Publication date
ATE8690T1 (en) 1984-08-15
DE3164933D1 (en) 1984-08-30
EP0033152B1 (en) 1984-07-25
PL221610A1 (en) 1981-08-07
PL124332B1 (en) 1983-01-31

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