EP1719876A1 - Stope support for underground gallery. - Google Patents

Stope support for underground gallery. Download PDF

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Publication number
EP1719876A1
EP1719876A1 EP05012960A EP05012960A EP1719876A1 EP 1719876 A1 EP1719876 A1 EP 1719876A1 EP 05012960 A EP05012960 A EP 05012960A EP 05012960 A EP05012960 A EP 05012960A EP 1719876 A1 EP1719876 A1 EP 1719876A1
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EP
European Patent Office
Prior art keywords
runner
cap
cylinder
frame according
support frame
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
EP05012960A
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German (de)
French (fr)
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EP1719876B1 (en
Inventor
Gregor Pieczyk
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Maschinenfabrik Glueckauf & Co KG GmbH
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Maschinenfabrik Glueckauf & Co KG GmbH
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Application filed by Maschinenfabrik Glueckauf & Co KG GmbH filed Critical Maschinenfabrik Glueckauf & Co KG GmbH
Priority to PL05012960T priority Critical patent/PL1719876T3/en
Publication of EP1719876A1 publication Critical patent/EP1719876A1/en
Application granted granted Critical
Publication of EP1719876B1 publication Critical patent/EP1719876B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/0086—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries
    • E21D23/0091—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries at the junction with the working face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/083—Advancing mechanisms forming parts of the roof supports acting on a firm abutment adapted thereto
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
    • E21D23/086—Details of fixing devices therefor

Definitions

  • the invention relates to an expansion rack for an underground track according to the features in the preamble of claim 1.
  • Each support frame comprises at least one runner, a consistently multi-limbed cap and hydraulically loadable punches incorporated between the runner and the cap. It can also be provided as part of a Lemniskatenlenkeran Ich between the runner and the cap, in particular in the rear region of the expansion rack guide.
  • a Lemniskatenlenkeran Mr then often includes a rupture shield to prevent ingress of debris in the inner region of the To prevent expansion frames. Further, it ensures relative relative displacements of the cap to the skid a substantially rectilinear vertical movement of the cap.
  • a vertically pivotable stem cap protrudes over the front part of the skid in order to undercut the track ridges above the machine frame without stamping.
  • the runner of the expansion rack is traversed in the longitudinal direction by a force-guided on the runner rear linkage, which is connected on the one hand via a hydraulically loadable back cylinder to the runner and on the other hand via a stop unit at least indirectly with the machine frame overlapped by the cap.
  • a vertically oriented, hydraulically actuated lifting cylinder can be provided to lift the runner at the back of the expansion rack.
  • the cap Since the cap is usually underpinned by two juxtaposed stamp, at least parts of the expansion frame can rotate about the longitudinal edge of the cap, which is in contact with the Streckenfirste. This results in a twisting of the entire system of the expansion rack, which not only has adverse effects on the individual components of the expansion rack.
  • the track ridge can also be scavenged.
  • the invention is - based on the prior art - the object of the invention to provide an expansion rack for an underground track, which is not harmful even with an inclined course of the Streckenfirste relative to the track sole Influences, in particular on torsion, is exposed and in which the track ridges is gently underpinned.
  • each partial cap is freely movable by at least one stamp mounted on the undivided skid. Consequently, each partial cap can be pressed against the laterally inclined partial length of the guide without being influenced by the adjacent partial cap.
  • a triangular gusset in the form of a fine-grained gusset arises owing to the different height position of the two partial caps between the upper side of the lower partial cap, the adjacent lateral surface of the higher-lying partial cap and the extended gusset Accumulate debris.
  • the expansion frame is combined with at least one further expansion frame according to the invention to form a track expansion team.
  • all movements of the different parts of the expansion station can be linked control technology.
  • a preferred embodiment of the invention consists in the features of claim 3. Thereafter, each sub-cap by two successive punch and a Lemniskatenscher assembly connected to the runner. Conceivable, however, are other commonly used in practice stamp assemblies.
  • the Lemniskatenlenker arrangement is advantageously provided with a rupture shield to prevent the ingress of debris in the expansion rack.
  • the rear cylinder is hinged with its piston rod to the rear end of the rear linkage and with its cylinder housing to a the rear linkage in the front part of the runner bridging cross member articulated.
  • the at least partially relieved in terms of the stamp extension frame is tightened under support on the machine frame of the longwall conveyor, whereas when a loading of the piston rod space is clamped between Streckenfirste and track sole braced expansion rack of the machine frame to the amount predetermined by the recovery amount.
  • the return linkage, together with the rear cylinder is protected in a longitudinal channel of the runner.
  • the features of claim 5 provide that a vertically oriented, hydraulically actuated lifting cylinder is provided.
  • the lifting cylinder is connected via its cylinder housing with the front end of the rear linkage and its piston rod to the crossbar. Consequently, when the piston chamber of the lifting cylinder is acted upon, the piston rod extends and raises the front end of the runner via the traverse. Parallel to this, the punches between the runner and the partial caps have been relieved accordingly.
  • the stop unit is fixed to a bottom plate of the machine frame reversible according to claim 7.
  • the invention makes it possible, without major problems, to automate control of all actions of the various hydraulic cylinders.
  • a track expansion team of two juxtaposed expansion points 2 is designated.
  • FIG. 3 designates an underground section which is substantially rectangular in cross-section, with an approximately horizontally extending track bottom 4 and, on the other hand, inclined track ridges 5 (FIG. 3).
  • the free path cross section is secured by anchor 6.
  • the drive head of a longwall conveyor 8 is referred to transition to a track conveyor 9 and with drives 10 for the longwall conveyor 8 and 11 for an unspecified extraction machine.
  • the machine frame 12 of the drive head 7 is supported on a bottom plate 13 lying on the track bottom 4.
  • Each support frame 2 has a runner 14, four telescopic and hydraulically actuated punch 15, a cap 16 carried by the punches 15 and two in the rear region of the expansion frame 2, the runner 14 with the cap 16 hingedly connecting Lemniskatenlenkeran Aunt 17 from two guide arms 18 and a Bruchschildlenker 19 on.
  • the Bruchschildlenker 19 prevents ingress of debris HW in the expansion station. 2
  • the cap 16 is divided in the longitudinal direction into two partial caps 20 which, as shown in FIG. 3, contact their mutually facing lateral surfaces 21.
  • Each partial cap 20 is underpinned by two punches 15 arranged one behind the other in the longitudinal direction of the partial caps 20. Further, a Lemniskatenscheran Aunt 17 is provided between each partial cap 20 and the skid 14.
  • FIGS 1 and 2 show that each partial cap 20 is provided with a stem cap 22 which projects beyond the drive head 7 and with respect to the partial cap 20 by means of a hydraulically acted upon oblique cylinder 23 about an axis 24 is vertically pivotable.
  • the cylinder housing 25 are hinged to the partial cap 20 and the piston rod 26 to the stem cap 22.
  • connections 27 of the punches 15 to the respective partial caps 20 are offset with respect to the vertical contact plane KE between the partial caps 20 of a support frame 2 in the direction of the side surfaces 28 facing away from each other.
  • the partial caps 20 are consequently underlaid asymmetrically by the punches 15.
  • each triangular gusset 30 formed in which heap 31 accumulates.
  • This heap 31 is entrained over the entire length of the partial caps 20 and fills the gussets 30 on. In this way, even with an inclined track ridge 5, an extensive surface contact pressure of the partial caps 20 on the track ridges 5 and thus a distribution of the surface pressure is ensured.
  • the runners 14 of the expansion station 2 have longitudinal channels 32, in which return rods 33 are positively guided.
  • the rear ends of the expansion point 2 front ends 34 of the return linkage 33 are fastened via U-shaped sliding sleeves with the interposition of joints 36 on guide rails 35 of stop units 38.
  • the stop units 38 are set to be repositioned on the bottom plate 13.
  • the sliding sleeves 35 of the return linkage 33 can be displaced transversely to the longitudinal extent of the return linkage 33 along the guide rails 37 by means of hydraulically loadable displacement cylinders 39.
  • the rear ends 40 of the linkage 33 are pivotally connected to the piston rods 41 of hydraulically loadable rear cylinders 42.
  • the cylinder housing 43 of the rear cylinder 42 are struck on cross members 44 of the runners 14, which bridge the front ends of the rear linkage 33.
  • the expansion point 2 remain clamped between the track sole 4 and the track ridge 5, so that they form an abutment.
  • the piston rod chambers of the back cylinder 42 is applied, the machine frame 12 is further shifted by the desired amount in the direction of degradation. If this level is reached, the punch 15 are relieved accordingly, so that the tension between the track ridge 5 and the track sole 4 is canceled. Thereafter, the lifting cylinder 45 are acted upon in Ausfahrsinne and raised in this way the front parts 48 of the skids 14. Subsequently, the piston chambers of the return cylinder 42 are acted upon and pulled in this way, the two expansion point 2.
  • the lifting cylinder 45 is relieved again, lowered the runners 14 on the track sole 4 and then clamped the punch 15 again, so that the skids 14 are pressed against the track sole 4 and the partial caps 20 to the Streckenfirste 5.

Abstract

The support has a runner (14), and a cap integrated with hydraulic plungers (15). The cap (16) is divided longitudinally and each partial cap (20) has a plunger stored on the runner allowing free movement. The plunger is linked to the caps allowing vertical movement (KE) between the partial caps in a side direction. Each partial cap is connected behind the plungers with a steering setup (17) for the runners.

Description

Die Erfindung betrifft ein Ausbaugestell für eine untertägige Strecke gemäß den Merkmalen im Oberbegriff des Anspruchs 1.The invention relates to an expansion rack for an underground track according to the features in the preamble of claim 1.

Zur örtlichen Lagefixierung eines Bestandteil eines Strebförderers bildenden Antriebskopfs mit Maschinenrahmen in einer untertägigen Strecke und zur abbaubedingten Nachführung des Antriebskopfs in Längsrichtung der Strecke werden zwischen der Streckensohle und der Streckenfirste verspannbare Ausbaugestelle eingesetzt. Derartige Ausbaugestelle können auch in Doppel- oder in Dreifachanordnung nebeneinander vorgesehen werden. Jedes Ausbaugestell umfasst mindestens eine Kufe, eine durchweg mehrgliedrige Kappe sowie zwischen die Kufe und die Kappe eingegliederte hydraulisch beaufschlagbare Stempel. Außerdem können zwischen der Kufe und der Kappe, insbesondere im rückwärtigen Bereich des Ausbaugestells Führungslenker als Bestandteil einer Lemniskatenlenkeranordnung vorgesehen sein. Eine solche Lemniskatenlenkeranordnung umfasst dann häufig einen Bruchschild, um ein Eindringen von Haufwerk in den inneren Bereich des Ausbaugestells zu verhindern. Ferner gewährleistet sie bei Relativverlagerungen der Kappe zur Kufe eine im Wesentlichen geradlinige vertikale Bewegung der Kappe.For local fixation of a constituent of a longwall conveyor forming drive head with machine frame in an underground route and for dismantling tracking the drive head in the longitudinal direction of the track between the track sole and the Streckenfirste bracing expansion station are used. Such expansion station can also be provided side by side in double or in triple arrangement. Each support frame comprises at least one runner, a consistently multi-limbed cap and hydraulically loadable punches incorporated between the runner and the cap. It can also be provided as part of a Lemniskatenlenkeranordnung between the runner and the cap, in particular in the rear region of the expansion rack guide. Such a Lemniskatenlenkeranordnung then often includes a rupture shield to prevent ingress of debris in the inner region of the To prevent expansion frames. Further, it ensures relative relative displacements of the cap to the skid a substantially rectilinear vertical movement of the cap.

Eine vertikal schwenkbare Vorbaukappe kragt über den vorderen Teil der Kufe vor, um die Streckenfirste oberhalb des Maschinenrahmens stempelfrei zu unterfangen.A vertically pivotable stem cap protrudes over the front part of the skid in order to undercut the track ridges above the machine frame without stamping.

Die Kufe des Ausbaugestells ist in Längsrichtung von einem an der Kufe zwangsgeführten Rückgestänge durchsetzt, das einerseits über einen hydraulisch beaufschlagbaren Rückzylinder mit der Kufe und andererseits über eine Anschlageinheit zumindest mittelbar mit dem von der Kappe übergriffenen Maschinenrahmen verbunden ist. Zum Anheben der Kufe beim Rücken des Ausbaugestells kann ein vertikal ausgerichteter, hydraulisch beaufschlagbarer Hubzylinder vorgesehen sein.The runner of the expansion rack is traversed in the longitudinal direction by a force-guided on the runner rear linkage, which is connected on the one hand via a hydraulically loadable back cylinder to the runner and on the other hand via a stop unit at least indirectly with the machine frame overlapped by the cap. To lift the runner at the back of the expansion rack, a vertically oriented, hydraulically actuated lifting cylinder can be provided.

Das vorbeschriebene Ausbaugestell zählt im Umfang der DE 200 12 245 U1 zum Stand der Technik. Es hat sich in der Praxis prinzipiell bewährt. Bei diesem Einsatz haben sich jedoch Schwierigkeiten ergeben, wenn der Querschnitt der Strecke weitgehend rechteckig gestaltet ist und die Streckenfirste, im Gegensatz zur annähernd horizontal ausgerichteten Streckensohle, quer zur Streckenlängsrichtung dachartig schräg verläuft. Aufgrund ihrer Breite kommt die Kappe dann nicht vollständig an der Streckenfirste zur Anlage. Vielmehr tritt im Bereich einer Längskante der Kappe aufgrund der linienförmigen Belastung durch das Gebirge eine sehr hohe Flächenpressung auf, während die anderen Bereiche der Kappe einer deutlich geringeren Druckbelastung ausgesetzt sind. Die Folge ist, dass das gesamte Ausbaugestell auf Torsion beansprucht wird. Da die Kappe in der Regel durch zwei nebeneinander angeordnete Stempel unterfangen ist, können sich zumindest Teile des Ausbaugestells um die Längskante der Kappe drehen, die mit der Streckenfirste in Kontakt steht. Hierdurch kommt es zu einem Tordieren des gesamten Systems des Ausbaugestells, welches nicht nur auf die einzelnen Komponenten des Ausbaugestells nachteilige Auswirkungen hat. Auch die Streckenfirste kann ausgeklüftet werden.The above expansion rack counts within the scope of DE 200 12 245 U1 to the state of the art. It has proven itself in practice in principle. In this application, however, difficulties have arisen when the cross section of the track is designed to be substantially rectangular and the track ridges, in contrast to the approximately horizontally oriented track sole, transversely to the longitudinal direction obliquely roof-like. Due to their width, the cap then does not fully come to the Streckenfirste to the plant. Rather, occurs in the region of a longitudinal edge of the cap due to the linear load through the mountains a very high surface pressure, while the other areas of the cap are exposed to a much lower pressure load. The result is that the entire expansion rack is subjected to torsion. Since the cap is usually underpinned by two juxtaposed stamp, at least parts of the expansion frame can rotate about the longitudinal edge of the cap, which is in contact with the Streckenfirste. This results in a twisting of the entire system of the expansion rack, which not only has adverse effects on the individual components of the expansion rack. The track ridge can also be scavenged.

Der Erfindung liegt - ausgehend vom Stand der Technik - die Aufgabe zugrunde, ein Ausbaugestell für eine untertägige Strecke zu schaffen, das auch bei einem geneigten Verlauf der Streckenfirste relativ zur Streckensohle keinen schädlichen Einflüssen, insbesondere auf Torsion, ausgesetzt ist und bei welchem die Streckenfirste schonend unterfangen wird.The invention is - based on the prior art - the object of the invention to provide an expansion rack for an underground track, which is not harmful even with an inclined course of the Streckenfirste relative to the track sole Influences, in particular on torsion, is exposed and in which the track ridges is gently underpinned.

Die Lösung dieser Aufgabe besteht nach der Erfindung in den Merkmalen des Anspruchs 1.The solution to this problem consists according to the invention in the features of claim 1.

Demgemäß wird nunmehr die Kappe in Längsrichtung geteilt, so dass zwei voneinander unabhängige Teilkappen entstehen. Jede Teilkappe ist durch mindestens einen auf der ungeteilten Kufe gelagerten Stempel frei beweglich unterfangen. Folglich kann jede Teilkappe unbeeinflusst von der benachbarten Teilkappe gegen die in Querrichtung geneigte Streckenfirste gepresst werden. Im Hinblick darauf, dass die Teilkappen mit den einander zugewandten Seitenflächen sich kontaktieren, entsteht aufgrund der unterschiedlichen Höhenlage der beiden Teilkappen zwischen der Oberseite der unteren Teilkappe, der benachbarten Seitenfläche der höher liegenden Teilkappe und der Streckenfirste ein im Querschnitt dreieckförmiger Zwickel, in welchem sich feinkörniges Haufwerk ansammeln kann. Dieses Haufwerk wird auch bei einer Verlagerung des Ausbaugestells in Längsrichtung der Strecke mitgeschleppt und füllt stets den Zwickel aus. Auf diese Weise kommt es zu dem positiven Effekt einer indirekten größeren Anlage der Teilkappen an der Streckenfirste mit einer Verteilung der Flächenpressung. Dadurch wird eine deutliche Verminderung der Torsionsbeanspruchungen und eine wesentlich geringere Aufklüftung der Streckenfirste erzielt.Accordingly, now the cap is divided in the longitudinal direction, so that two independent partial caps arise. Each partial cap is freely movable by at least one stamp mounted on the undivided skid. Consequently, each partial cap can be pressed against the laterally inclined partial length of the guide without being influenced by the adjacent partial cap. In view of the fact that the partial caps contact the mutually facing side surfaces, a triangular gusset in the form of a fine-grained gusset arises owing to the different height position of the two partial caps between the upper side of the lower partial cap, the adjacent lateral surface of the higher-lying partial cap and the extended gusset Accumulate debris. This heap is dragged along in the longitudinal direction of the route even with a displacement of the expansion rack and always fills the gusset. In this way, there is the positive effect of an indirect larger investment of the sub-caps on the Streckenfirste with a distribution of surface pressure. As a result, a significant reduction in the torsional stresses and a much lower Aufklüftung the Streckenfirste is achieved.

Besonders vorteilhaft erweist es sich, wenn das Ausbaugestell mit zumindest einem weiteren erfindungsgemäßen Ausbaugestell zu einem Streckenausbaugespann zusammengefasst ist. Hierbei können alle Bewegungen der verschiedenen Teile der Ausbaugestelle steuerungstechnisch verknüpft sein.It proves particularly advantageous if the expansion frame is combined with at least one further expansion frame according to the invention to form a track expansion team. Here, all movements of the different parts of the expansion station can be linked control technology.

Aufgrund der Merkmale des Anspruchs 2 werden die über die Stempel in die Teilkappen eingeleiteten Stützkräfte in Richtung der einander abgewandten Seitenflächen der Teilkappen verlagert. Die Teilkappen werden somit asymmetrisch unterfangen.Due to the features of claim 2 introduced via the stamp in the sub-caps supporting forces are displaced in the direction of the opposite side surfaces of the sub-caps. The partial caps are thus underlined asymmetrically.

Eine bevorzugte Ausführungsform der Erfindung besteht in den Merkmalen des Anspruchs 3. Danach ist jede Teilkappe durch zwei hintereinander liegende Stempel und eine Lemniskatenlenkeranordnung mit der Kufe verbunden. Denkbar sind aber auch andere, in der Praxis gebräuchliche Stempelanordnungen. Die Lemniskatenlenkeranordnung ist vorteilhaft mit einem Bruchschild versehen, um das Eindringen von Haufwerk in das Ausbaugestell zu verhindern.A preferred embodiment of the invention consists in the features of claim 3. Thereafter, each sub-cap by two successive punch and a Lemniskatenlenker assembly connected to the runner. Conceivable, however, are other commonly used in practice stamp assemblies. The Lemniskatenlenker arrangement is advantageously provided with a rupture shield to prevent the ingress of debris in the expansion rack.

Ein ordnungsgemäßes Verlagern des Ausbaugestells in Längsrichtung der Strecke kann mit den Merkmalen des Anspruchs 4 gewährleistet werden. Hierbei ist der Rückzylinder mit seiner Kolbenstange an das rückwärtige Ende des Rückgestänges und mit seinem Zylindergehäuse an eine das Rückgestänge im vorderen Teil der Kufe überbrückende Traverse gelenkig angeschlagen. Bei Beaufschlagung des Zylinderraumes des Rückzylinders wird das zumindest teilweise hinsichtlich der Stempel entlastete Ausbaugestell unter Abstützung am Maschinenrahmen des Strebförderers nachgezogen, wohingegen bei einer Beaufschlagung des Kolbenstangenraums bei zwischen Streckenfirste und Streckensohle verspanntem Ausbaugestell der Maschinenrahmen um den jeweils durch die Gewinnung vorgegebenen Betrag vorverlagert wird. Das Rückgestänge liegt mitsamt dem Rückzylinder geschützt in einem Längskanal der Kufe.A proper displacement of the expansion rack in the longitudinal direction of the route can be ensured with the features of claim 4. Here, the rear cylinder is hinged with its piston rod to the rear end of the rear linkage and with its cylinder housing to a the rear linkage in the front part of the runner bridging cross member articulated. When loading the cylinder chamber of the rear cylinder, the at least partially relieved in terms of the stamp extension frame is tightened under support on the machine frame of the longwall conveyor, whereas when a loading of the piston rod space is clamped between Streckenfirste and track sole braced expansion rack of the machine frame to the amount predetermined by the recovery amount. The return linkage, together with the rear cylinder, is protected in a longitudinal channel of the runner.

Damit das Rücken des Ausbaugestells unter Abstützung am Maschinenrahmen erleichtert wird, sehen die Merkmale des Anspruchs 5 vor, dass ein vertikal ausgerichteter, hydraulisch beaufschlagbarer Hubzylinder vorgesehen ist. Der Hubzylinder ist über sein Zylindergehäuse mit dem vorderen Ende des Rückgestänges und über seine Kolbenstange mit der Traverse verbunden. Wird folglich der Kolbenraum des Hubzylinders beaufschlagt, fährt die Kolbenstange aus und hebt über die Traverse das vordere Ende der Kufe an. Parallel hierzu sind die Stempel zwischen der Kufe und den Teilkappen entsprechend entlastet worden.Thus, the back of the expansion rack is supported under support on the machine frame, the features of claim 5 provide that a vertically oriented, hydraulically actuated lifting cylinder is provided. The lifting cylinder is connected via its cylinder housing with the front end of the rear linkage and its piston rod to the crossbar. Consequently, when the piston chamber of the lifting cylinder is acted upon, the piston rod extends and raises the front end of the runner via the traverse. Parallel to this, the punches between the runner and the partial caps have been relieved accordingly.

Zwecks Einstellung der Relativlage der Kufe zur mit dem Antriebskopf bzw. dem Maschinenrahmen mindestens mittelbar verbundenen Anschlageinheit ist entsprechend den Merkmalen des Anspruchs 6 vorgesehen, dass der Koppelbereich des Rückgestänges mit der Anschlageinheit durch einen sich quer zum Längsverlauf der Kufe erstreckenden horizontalen, hydraulisch beaufschlagbaren Verlagerungszylinder entlang der Anschlageinheit verschiebbar ist.In order to set the relative position of the runner for at least indirectly connected to the drive head or the machine frame stop unit is provided according to the features of claim 6, that the coupling region of the rear linkage with the stop unit by extending transversely to the longitudinal course of the runner horizontal, hydraulically loadable displacement cylinder along the stop unit is displaceable.

Zur weiteren erleichterten Anpassung an die jeweiligen örtlichen Gegebenheiten ist gemäß Anspruch 7 die Anschlageinheit an einer Bodenplatte des Maschinenrahmens umsteckbar festgelegt.To further facilitate adaptation to the respective local conditions, the stop unit is fixed to a bottom plate of the machine frame reversible according to claim 7.

Die Erfindung erlaubt es ohne größere Probleme, sämtliche Beaufschlagungen der diversen hydraulischen Zylinder steuerungstechnisch zu automatisieren.The invention makes it possible, without major problems, to automate control of all actions of the various hydraulic cylinders.

Die Erfindung ist nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Figur 1
im Schema einen vertikalen Längsschnitt durch eine untertägige Strecke im Bereich eines Streb-Streckenübergangs mit einem Ausbaugestell in der Seitenansicht und einem Antriebskopf eines Strebförderers in dünner Linienführung;
Figur 2
einen horizontalen Querschnitt durch die Darstellung der Figur 1 entlang der Linie II-II, in Richtung der Pfeile lla gesehen und
Figur 3
einen vertikalen Querschnitt durch die Darstellung der Figur 1 entlang der Linie III-III, in Richtung der Pfeile IIIa gesehen.
The invention is explained in more detail with reference to an embodiment shown in the drawings. Show it:
FIG. 1
in the diagram, a vertical longitudinal section through an underground route in the region of a Streb-Streckenübergangs with a Ausbaugestell in the side view and a drive head of a longwall conveyor in thin lines;
FIG. 2
a horizontal cross section through the representation of Figure 1 along the line II-II, seen in the direction of the arrows lla and
FIG. 3
a vertical cross section through the representation of Figure 1 along the line III-III, seen in the direction of the arrows IIIa.

Mit 1 ist in den Figuren 1 bis 3 ein Streckenausbaugespann aus zwei nebeneinander angeordneten Ausbaugestellen 2 bezeichnet.With 1 is in Figs. 1 to 3, a track expansion team of two juxtaposed expansion points 2 is designated.

3 bezeichnet eine im Querschnitt im Wesentlichen rechteckige untertägige Strecke mit annähernd horizontal verlaufender Streckensohle 4 und demgegenüber geneigt verlaufender Streckenfirste 5 (Figur 3). Der freie Streckenquerschnitt ist durch Anker 6 gesichert.3 designates an underground section which is substantially rectangular in cross-section, with an approximately horizontally extending track bottom 4 and, on the other hand, inclined track ridges 5 (FIG. 3). The free path cross section is secured by anchor 6.

Mit 7 ist der Antriebskopf eines Strebförderers 8 mit Übergang auf einen Streckenförderer 9 sowie mit Antrieben 10 für den Strebförderer 8 und 11 für eine nicht näher veranschaulichte Gewinnungsmaschine bezeichnet. Der Maschinenrahmen 12 des Antriebskopfs 7 stützt sich auf einer auf der Streckensohle 4 liegenden Bodenplatte 13 ab.7, the drive head of a longwall conveyor 8 is referred to transition to a track conveyor 9 and with drives 10 for the longwall conveyor 8 and 11 for an unspecified extraction machine. The machine frame 12 of the drive head 7 is supported on a bottom plate 13 lying on the track bottom 4.

Jedes Ausbaugestell 2 weist eine Kufe 14, vier teleskopierbare sowie hydraulisch beaufschlagbare Stempel 15, eine von den Stempeln 15 getragene Kappe 16 sowie zwei im rückwärtigen Bereich des Ausbaugestells 2 die Kufe 14 mit der Kappe 16 gelenkig verbindende Lemniskatenlenkeranordnung 17 aus jeweils zwei Führungslenkern 18 und einem Bruchschildlenker 19 auf. Der Bruchschildlenker 19 verhindert ein Eindringen von Haufwerk HW in die Ausbaugestelle 2.Each support frame 2 has a runner 14, four telescopic and hydraulically actuated punch 15, a cap 16 carried by the punches 15 and two in the rear region of the expansion frame 2, the runner 14 with the cap 16 hingedly connecting Lemniskatenlenkeranordnung 17 from two guide arms 18 and a Bruchschildlenker 19 on. The Bruchschildlenker 19 prevents ingress of debris HW in the expansion station. 2

Die Kappe 16 ist in Längsrichtung in zwei Teilkappen 20 geteilt, die, wie die Figur 3 erkennen lässt, mit ihren einander zugewandten Seitenflächen 21 sich kontaktieren. Jede Teilkappe 20 wird von zwei in Längsrichtung der Teilkappen 20 hintereinander liegenden Stempeln 15 unterfangen. Ferner ist zwischen jeder Teilkappe 20 und der Kufe 14 eine Lemniskatenlenkeranordnung 17 vorgesehen.The cap 16 is divided in the longitudinal direction into two partial caps 20 which, as shown in FIG. 3, contact their mutually facing lateral surfaces 21. Each partial cap 20 is underpinned by two punches 15 arranged one behind the other in the longitudinal direction of the partial caps 20. Further, a Lemniskatenlenkeranordnung 17 is provided between each partial cap 20 and the skid 14.

Die Figuren 1 und 2 lassen erkennen, dass jede Teilkappe 20 mit einer Vorbaukappe 22 versehen ist, die über den Antriebskopf 7 ragt und gegenüber der Teilkappe 20 mit Hilfe eines hydraulisch beaufschlagbaren Schrägzylinders 23 um eine Achse 24 vertikal schwenkbar ist. Dazu sind das Zylindergehäuse 25 an die Teilkappe 20 und die Kolbenstange 26 an die Vorbaukappe 22 angelenkt.Figures 1 and 2 show that each partial cap 20 is provided with a stem cap 22 which projects beyond the drive head 7 and with respect to the partial cap 20 by means of a hydraulically acted upon oblique cylinder 23 about an axis 24 is vertically pivotable. For this purpose, the cylinder housing 25 are hinged to the partial cap 20 and the piston rod 26 to the stem cap 22.

Wie die Figur 3 ferner erkennen lässt, sind die Anbindungen 27 der Stempel 15 an die jeweiligen Teilkappen 20 bezüglich der vertikalen Kontaktebene KE zwischen den Teilkappen 20 eines Ausbaugestells 2 in Richtung auf die einander abgewandten Seitenflächen 28 versetzt angeordnet. Die Teilkappen 20 werden folglich von den Stempeln 15 asymmetrisch unterfangen.As can be seen further from FIG. 3, the connections 27 of the punches 15 to the respective partial caps 20 are offset with respect to the vertical contact plane KE between the partial caps 20 of a support frame 2 in the direction of the side surfaces 28 facing away from each other. The partial caps 20 are consequently underlaid asymmetrically by the punches 15.

Durch die Aufgliederung der Kappe 16 eines Ausbaugestells 2 in zwei Teilkappen 20 werden oberhalb der jeweils unteren Teilkappe 20 zwischen deren Oberseite 29, der Seitenfläche 21 der nächsthöheren Teilkappe 20 und der Streckenfirste 5 sowie oberhalb der unteren Teilkappe 20 der einander benachbarten Teilkappen 20 der beiden Ausbaugestelle 2 jeweils dreieckförmige Zwickel 30 gebildet, in welchen sich Haufwerk 31 ansammelt. Dieses Haufwerk 31 wird über die gesamte Länge der Teilkappen 20 mitgeschleppt und füllt die Zwickel 30 auf. Auf diese Weise ist auch bei einer geneigten Streckenfirste 5 eine weitgehende flächige Anpressung der Teilkappen 20 an die Streckenfirste 5 und damit eine Verteilung der Flächenpressung gewährleistet.By the breakdown of the cap 16 of a support frame 2 in two sub-caps 20 are above the respective lower part of the cap 20 between the top 29, the side surface 21 of the next higher partial cap 20 and the Streckenfirste 5 and above the lower part of the cap 20 of the adjacent partial caps 20 of the two expansion point 2 each triangular gusset 30 formed in which heap 31 accumulates. This heap 31 is entrained over the entire length of the partial caps 20 and fills the gussets 30 on. In this way, even with an inclined track ridge 5, an extensive surface contact pressure of the partial caps 20 on the track ridges 5 and thus a distribution of the surface pressure is ensured.

Die Kufen 14 der Ausbaugestelle 2 weisen Längskanäle 32 auf, in denen Rückgestänge 33 zwangsgeführt sind. Die in Rückrichtung der Ausbaugestelle 2 vorderen Enden 34 der Rückgestänge 33 sind über U-förmige Gleithülsen unter Zwischenschaltung von Gelenken 36 an Führungsleisten 35 von Anschlageinheiten 38 befestigt. Die Anschlageinheiten 38 sind umsteckbar an der Bodenplatte 13 festgelegt. Die Gleithülsen 35 der Rückgestänge 33 können mit Hilfe von hydraulisch beaufschlagbaren Verlagerungszylindern 39 quer zur Längserstreckung der Rückgestänge 33 entlang der Führungsleisten 37 verlagert werden.The runners 14 of the expansion station 2 have longitudinal channels 32, in which return rods 33 are positively guided. The rear ends of the expansion point 2 front ends 34 of the return linkage 33 are fastened via U-shaped sliding sleeves with the interposition of joints 36 on guide rails 35 of stop units 38. The stop units 38 are set to be repositioned on the bottom plate 13. The sliding sleeves 35 of the return linkage 33 can be displaced transversely to the longitudinal extent of the return linkage 33 along the guide rails 37 by means of hydraulically loadable displacement cylinders 39.

Die rückwärtigen Enden 40 der Rückgestänge 33 sind mit den Kolbenstangen 41 von hydraulisch beaufschlagbaren Rückzylindern 42 gelenkig verbunden. Die Zylindergehäuse 43 der Rückzylinder 42 sind an Traversen 44 der Kufen 14 angeschlagen, welche die vorderen Enden der Rückgestänge 33 überbrücken.The rear ends 40 of the linkage 33 are pivotally connected to the piston rods 41 of hydraulically loadable rear cylinders 42. The cylinder housing 43 of the rear cylinder 42 are struck on cross members 44 of the runners 14, which bridge the front ends of the rear linkage 33.

Zwischen den vorderen Enden 34 der Rückgestänge 33 und den Traversen 44 sind hydraulisch beaufschlagbare Hubzylinder 45 angeordnet. Die Kolbenstangen 46 der Hubzylinder 45 sind an die Traversen 44 und die Zylindergehäuse 47 an die Rückgestänge 33 gelenkig angeschlagen.Between the front ends 34 of the rear linkage 33 and the trusses 44 hydraulically actuated lifting cylinder 45 are arranged. The piston rods 46 of the lifting cylinder 45 are hinged to the trusses 44 and the cylinder housing 47 to the rear linkage 33 articulated.

Beim Verlagern des Maschinenrahmens 12 mit dem Antriebskopf 7 entsprechend dem jeweiligen Maß des Gewinnungsfortschritts bleiben die Ausbaugestelle 2 zwischen der Streckensohle 4 und der Streckenfirste 5 verspannt, so dass sie ein Widerlager bilden. Werden nunmehr die Kolbenstangenräume der Rückzylinder 42 beaufschlagt, so wird der Maschinenrahmen 12 um das gewünschte Maß in Abbaurichtung weiter verlagert. Ist dieses Maß erreicht, werden die Stempel 15 entsprechend entlastet, so dass die Verspannung zwischen der Streckenfirste 5 und der Streckensohle 4 aufgehoben wird. Danach werden die Hubzylinder 45 im Ausfahrsinne beaufschlagt und auf diese Weise die vorderen Teile 48 der Kufen 14 angehoben. Anschließend werden die Kolbenräume der Rückzylinder 42 beaufschlagt und auf diese Weise die beiden Ausbaugestelle 2 nachgezogen.When relocating the machine frame 12 with the drive head 7 according to the respective degree of extraction progress, the expansion point 2 remain clamped between the track sole 4 and the track ridge 5, so that they form an abutment. Now, if the piston rod chambers of the back cylinder 42 is applied, the machine frame 12 is further shifted by the desired amount in the direction of degradation. If this level is reached, the punch 15 are relieved accordingly, so that the tension between the track ridge 5 and the track sole 4 is canceled. Thereafter, the lifting cylinder 45 are acted upon in Ausfahrsinne and raised in this way the front parts 48 of the skids 14. Subsequently, the piston chambers of the return cylinder 42 are acted upon and pulled in this way, the two expansion point 2.

Sodann werden die Hubzylinder 45 wieder entlastet, die Kufen 14 auf die Streckensohle 4 abgesenkt und dann die Stempel 15 wieder verspannt, so dass die Kufen 14 an die Streckensohle 4 und die Teilkappen 20 an die Streckenfirste 5 gedrückt werden.Then the lifting cylinder 45 is relieved again, lowered the runners 14 on the track sole 4 and then clamped the punch 15 again, so that the skids 14 are pressed against the track sole 4 and the partial caps 20 to the Streckenfirste 5.

Bezugszeichen:Reference numerals:

1 -1 -
StreckenausbaugespannRoadway support team
2 -2 -
AusbaugestelleSupport units
3 -3 -
Streckeroute
4 -4 -
Streckensohlegallery floor
5 -5 -
Streckenfirsteroute ridges
6 -6 -
Ankeranchor
7 -7 -
Antriebskopfpowerhead
8 -8th -
Strebfördererface conveyor
9 -9 -
Streckenfördererdistance conveyor
10 -10 -
Antrieb f. 8Drive f. 8th
11 -11 -
GewinnungsmaschinenantriebMining machines drive
12 -12 -
Maschinenrahmenmachine frame
13 -13 -
Bodenplatte v. 12Base plate v. 12
14 -14 -
Kufen v. 2Skids v. 2
15 -15 -
Stempelstamp
16 -16 -
Kappencut
17 -17 -
LemniskatenlenkeranordnungLemniskatenlenkeranordnung
18 -18 -
Führungslenker v. 17Guide link v. 17
19 -19 -
Bruchschildlenker v. 17Breaker handlebar v. 17
20 -20 -
Teilkappen v. 16Partial caps v. 16
21 -21 -
Seitenflächen v. 20Side surfaces v. 20
22 -22 -
Vorbaukappenstem caps
23 -23 -
Schrägzylinderoblique cylinder
24 -24 -
Schwenkachsenswiveling axes
25 -25 -
Zylindergehäuse v. 23Cylinder housing v. 23
26 -26 -
Kolbenstange v. 23Piston rod v. 23
27 -27 -
Anbindungen v. 15 an 20Connections v. 15 to 20
28 -28 -
Seitenflächen v. 20Side surfaces v. 20
29 -29 -
Oberseiten v. 20Tops v. 20
30 -30 -
Zwickelgore
31 -31 -
Haufwerk in 30Heap in 30
32 -32 -
Längskanäle in 14Longitudinal channels in 14
33 -33 -
Rückgestängerear linkage
34 -34 -
vordere Enden v. 33front ends v. 33
35 -35 -
Gleithülsensliding sleeves
36 -36 -
Gelenkejoints
37 -37 -
Führungsleiste an 38Guide bar on 38
38 -38 -
Anschlageinheitstop unit
39 -39 -
Verlagerungszylindershift cylinder
40 -40 -
rückwärtige Enden v. 33rear ends v. 33
41 -41 -
Kolbenstangen v. 42Piston rods v. 42
42 -42 -
Rückzylinderrear cylinder
43 -43 -
Zylindergehäuse v. 42Cylinder housing v. 42
44 -44 -
Traversetraverse
45 -45 -
Hubzylinderlifting cylinder
46 -46 -
Kolbenstangen v. 45Piston rods v. 45
47 -47 -
Zylindergehäusecylinder housing
48 -48 -
vordere Teile v. 14front parts v. 14
HW -HW -
Haufwerkheap
KE -KE -
Kontaktebene zw. 20Contact level between 20

Claims (7)

Ausbaugestell für eine untertägige Strecke (3), das eine Kufe (14), eine Kappe (16) sowie zwischen die Kufe (14) und die Kappe (16) eingegliederte, hydraulisch beaufschlagbare Stempel (15) aufweist, dadurch gekennzeich-net, dass die Kappe (16) in Längsrichtung geteilt und jede Teilkappe (20) für sich durch mindestens einen auf der ungeteilten Kufe (14) gelagerten Stempel (15) frei beweglich unterfangen ist.An expansion rack for an underground track (3), which has a runner (14), a cap (16) and hydraulically loadable punches (15) incorporated between the runner (14) and the cap (16), characterized in that the cap (16) divided in the longitudinal direction and each sub-cap (20) by itself by at least one on the undivided blade (14) mounted stamp (15) is free to move undercounter. Ausbaugestell nach Anspruch 1, dadurch gekennzeichnet, dass die Anlenkungen (27) der Stempel (15) an die Teilkappen (20) bezüglich der vertikalen Kontaktebene (KE) zwischen den Teilkappen (20) in Richtung auf die einander abgewandten Seitenflächen (28) versetzt angeordnet sind.Support frame according to claim 1, characterized in that the linkages (27) of the punch (15) to the sub-caps (20) with respect to the vertical contact plane (KE) between the sub-caps (20) arranged offset in the direction of the opposite side surfaces (28) are. Ausbaugestell nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass jede Teilkappe (20) durch zwei hintereinander liegende Stempel (15) und eine Lemniskatenlenkeranordnung (17) mit der Kufe (14) verbunden ist.Support frame according to claim 1 or 2, characterized in that each partial cap (20) is connected to the runner (14) by two punches (15) arranged one behind the other and a Lemniskaten handlebar arrangement (17). Ausbaugestell nach einem der Ansprüche 1 bis 3, dadurch gekenn-zeichnet, dass die Kufe (14) in Längsrichtung von einem an der Kufe (14) zwangsgeführten Rückgestänge (33) durchsetzt ist, das einerseits über einen hydraulisch beaufschlagbaren Rückzylinder (42) mit der Kufe (14) und andererseits über eine Anschlageinheit (38) zumindest mittelbar mit einem von der Kappe (16) übergriffenen Antriebskopf (7) eines Strebförderers (8) verbunden ist, wobei der Rückzylinder (42) mit seiner Kolbenstange (41) an das rückwärtige Ende (40) des Rückgestänges (33) und mit seinem Zylindergehäuse (43) an eine das Rückgestänge (33) im vorderen Teil (48) der Kufe (14) überbrückende Traverse (44) angeschlagen ist. Support frame according to one of Claims 1 to 3, characterized in that the runner (14) is traversed in the longitudinal direction by a return linkage (33) forcibly guided on the runner (14) which, on the one hand, has a return cylinder (42) which can be hydraulically actuated Runner (14) and on the other hand via an abutment unit (38) at least indirectly connected to one of the cap (16) overlapped drive head (7) of a longwall conveyor (8), wherein the rear cylinder (42) with its piston rod (41) to the rear End (40) of the rear linkage (33) and with its cylinder housing (43) to a the rear linkage (33) in the front part (48) of the runner (14) bridging cross member (44) is struck. Ausbaugestell nach Anspruch 4, dadurch gekennzeichnet, dass ein vertikal ausgerichteter, hydraulisch beaufschlagbarer Hubzylinder (45) zum Anheben der Kufe (14) vorgesehen ist, wobei der Hubzylinder (45) über sein Zylindergehäuse (47) mit dem vorderen Ende (34) des Rückgestänges (33) und über seine Kolbenstange (46) mit der Traverse (44) verbunden ist.Removal frame according to claim 4, characterized in that a vertically oriented, hydraulically actuated lifting cylinder (45) for lifting the runner (14) is provided, wherein the lifting cylinder (45) over its Cylinder housing (47) with the front end (34) of the rear linkage (33) and via its piston rod (46) with the cross member (44) is connected. Ausbaugestell nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass der Koppelbereich (35) des Rückgestänges (33) mit der Anschlageinheit (38) durch einen sich quer zum Längsverlauf der Kufe (14) erstreckenden, horizontalen, hydraulisch beaufschlagbaren Verlagerungszylinder (39) entlang der Anschlageinheit (38) verschiebbar ist.Support frame according to claim 4 or 5, characterized in that the coupling region (35) of the rear linkage (33) with the stop unit (38) by a transverse to the longitudinal course of the runner (14) extending, hydraulically loadable horizontal displacement cylinder (39) along the Stop unit (38) is displaceable. Ausbaugestell nach einem der Ansprüche 4 bis 6, dadurch gekenn-zeichnet, dass die Anschlageinheit (38) an einer Bodenplatte (13) des Maschinenrahmens (12) des Antriebskopfs (7) umsteckbar festgelegt ist. Support frame according to one of claims 4 to 6, characterized marked characterized in that the stop unit (38) on a bottom plate (13) of the machine frame (12) of the drive head (7) is set to be repositioned.
EP05012960A 2005-05-03 2005-06-16 Stope support for underground gallery. Not-in-force EP1719876B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05012960T PL1719876T3 (en) 2005-05-03 2005-06-16 Stope support for underground gallery.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520007257 DE202005007257U1 (en) 2005-05-03 2005-05-03 Expansion rack for an underground track

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EP1719876A1 true EP1719876A1 (en) 2006-11-08
EP1719876B1 EP1719876B1 (en) 2007-10-17

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EP (1) EP1719876B1 (en)
AT (1) ATE376119T1 (en)
DE (2) DE202005007257U1 (en)
PL (1) PL1719876T3 (en)
RU (1) RU2299330C2 (en)
UA (1) UA82724C2 (en)

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CN101482022B (en) * 2008-01-10 2011-12-07 李泽宇 Integral bottom girder
CN103758554A (en) * 2013-12-05 2014-04-30 中煤北京煤矿机械有限责任公司 Reliable support beam structure for hydraulic support, and hydraulic support
CN104314595A (en) * 2014-09-28 2015-01-28 北京诚田恒业煤矿设备有限公司 Hydraulically-driven telescopic and overturning combination mechanism for bracket
CN107227966A (en) * 2017-06-22 2017-10-03 天地科技股份有限公司 Temporary supporting device for laneway tunneling
CN113356912A (en) * 2021-07-15 2021-09-07 安徽理工大学 Supporting device for shaft bottom inclined opening in coal mine
US11248464B2 (en) * 2020-03-11 2022-02-15 Shandong University Of Science And Technology Method of treating tunnel collapse with roof-contacted shield support

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CN101519973B (en) * 2008-02-25 2010-12-01 张学进 Hydraulic bracket with interconnected top and bottom
CN101644162B (en) * 2009-08-04 2011-07-06 山西东华机械有限公司 Self-circulation type advanced hydraulic support
CN102042024B (en) * 2010-11-13 2012-11-07 枣庄矿业（集团）有限责任公司第二机械厂 Advanced support bracket for sliding top beam
CN103557023B (en) * 2013-11-15 2016-07-06 中煤北京煤矿机械有限责任公司 Extremely soft seam hydraulic support
CN104196551A (en) * 2014-07-01 2014-12-10 三一重型装备有限公司 Hydraulic support
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
CN105240013B (en) 2015-06-24 2017-12-15 何满潮 Broadwall N00 engineering methods
CN106168138B (en) * 2015-09-30 2018-07-06 北京中矿创新联盟能源环境科学研究院 Transition support and equipment system of roadway-free and coal-pillar-free self-retained roadway mining method
CN109555154B (en) * 2017-12-28 2020-12-22 中建科技有限公司深圳分公司 Open excavation construction method for comprehensive pipe gallery

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DE3709437A1 (en) * 1987-03-21 1988-11-03 Ludwig Pawelski Stope support for pneumatic stowing
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101482022B (en) * 2008-01-10 2011-12-07 李泽宇 Integral bottom girder
CN103758554A (en) * 2013-12-05 2014-04-30 中煤北京煤矿机械有限责任公司 Reliable support beam structure for hydraulic support, and hydraulic support
CN104314595A (en) * 2014-09-28 2015-01-28 北京诚田恒业煤矿设备有限公司 Hydraulically-driven telescopic and overturning combination mechanism for bracket
CN107227966A (en) * 2017-06-22 2017-10-03 天地科技股份有限公司 Temporary supporting device for laneway tunneling
CN107227966B (en) * 2017-06-22 2023-10-10 天地科技股份有限公司 Temporary support device for tunnel excavation
US11248464B2 (en) * 2020-03-11 2022-02-15 Shandong University Of Science And Technology Method of treating tunnel collapse with roof-contacted shield support
CN113356912A (en) * 2021-07-15 2021-09-07 安徽理工大学 Supporting device for shaft bottom inclined opening in coal mine
CN113356912B (en) * 2021-07-15 2022-06-28 安徽理工大学 Supporting device for shaft bottom inclined opening in coal mine

Also Published As

Publication number Publication date
RU2299330C2 (en) 2007-05-20
ATE376119T1 (en) 2007-11-15
RU2005122395A (en) 2007-01-20
UA82724C2 (en) 2008-05-12
EP1719876B1 (en) 2007-10-17
PL1719876T3 (en) 2008-03-31
DE202005007257U1 (en) 2005-07-07
DE502005001735D1 (en) 2007-11-29

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