EP0242514B1 - Device for adjusting and shifting a loading installation for a winning element - Google Patents

Device for adjusting and shifting a loading installation for a winning element Download PDF

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Publication number
EP0242514B1
EP0242514B1 EP87101613A EP87101613A EP0242514B1 EP 0242514 B1 EP0242514 B1 EP 0242514B1 EP 87101613 A EP87101613 A EP 87101613A EP 87101613 A EP87101613 A EP 87101613A EP 0242514 B1 EP0242514 B1 EP 0242514B1
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EP
European Patent Office
Prior art keywords
adjusting
cutting unit
machine
axis
suspension means
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EP87101613A
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German (de)
French (fr)
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EP0242514A1 (en
Inventor
Rolf Dipl.-Ing. Sagner
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CNH Industrial Baumaschinen GmbH
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O&K Orenstein and Koppel GmbH
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Priority to AT87101613T priority Critical patent/ATE69486T1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/78—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements
    • E02F3/783—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements having a horizontal axis of rotation
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/126—Loading devices or installations

Definitions

  • the invention relates to an adjusting device of the cutting unit on a mining device which can be moved on caterpillars in opencast mining, the cutting unit being formed from at least one crushing and conveying screw interacting with a guide element and being articulated horizontally in front of the mining device by means of a suspension, and the broken material being from the outside can be transported to the center of the screw and can be transferred to a downstream conveyor through an opening provided in the guide element.
  • the loading elements are designed as screw conveyors, which can be swiveled arm-like on both sides of the conveying device with a supporting frame.
  • the screw conveyors are at least partially equipped with crushing tools on their screw web, the guide elements serving as crushing abutments in this area.
  • the support frames can be swiveled independently of one another about their vertical axes in order to ensure that the entire machine can move around curves.
  • the actual extraction organ is arranged in front of the screw conveyors, so that there is a separation between the extraction and removal processes.
  • Tunneling machines of the type mentioned are well suited for underground mining, where there are only low removal heights.
  • the actual extraction organs are connected upstream of the loading organs, so that the loading organs themselves only have to take up the cut material falling to the ground and possibly have to shred them.
  • the cutting unit is formed from at least one crushing and conveying screw which interacts with a guide element, the broken material being transported from the outside to the center of the screw and being transferred there to a downstream conveying means through an opening provided in the guide element.
  • the cutting units of both company brochures have in common that a continuous cutting and conveying process of the extraction organ is achieved.
  • the disadvantages of the cutting units described in the company brochures are essentially due to the fact that, depending on the diameter of the cutting unit, only very small rock layer heights can be detected in one operation.
  • the company brochure of the Paurat company (Senkhelix) a possibility of lifting the entire device is already described, whereby the continuity of the extraction process is interrupted by the option shown, since the caterpillars can no longer be moved. The material broken off at the top falls on the floor and may lead to difficulties in loading when lowering the cutting unit.
  • US Pat. No. 3,861,475 shows an earthworking machine or moving machine which has a chassis including a tire chassis with a roller body arranged behind it.
  • a soil cultivation device consisting of at least one screw and held in a frame, the frame being liftable on the one hand by means of a hydraulic cylinder and on the other hand being pivotable about a horizontal axis.
  • This device is only for loosening soil, be it for agricultural purposes or for road construction can be used with subsequent compression. Extraction, ie the cutting of layers of rock, as is done, for example, in open-cast mining, with the transfer of material to a discharge conveyor is neither provided nor possible here. Since this device is not suitable for extracting crushed rock on the ground, the height adjustment option or the possibility of pivoting the frame relative to the device can only be applicable to differently inclined ground conditions, so that a corresponding subgrade can be generated using this device.
  • the invention has for its object to further develop an adjustment device of the cutting unit described in the generic part of the main patent claim that in addition to the continuous cutting and conveying process, the cutting unit should also be usable for the dismantling of higher-lying materials. Furthermore, it should be ensured in all dismantling situations that the goods to be removed do not fall onto the ground when they are handed over to a conveyor arranged after the cutting unit, and so that the extraction device has to be moved back to collect the failed pile again. Furthermore, the construction of the extraction device in connection with the cutting unit and its employment should be simplified.
  • the features according to the invention ensure that a continuous cutting and conveying process can be implemented with a relatively simple structural design in any height or inclination position of the cutting unit.
  • the suspension preferably consists of a cross member and associated legs.
  • the cutting unit is pivotable about the axis extending between the free ends of the legs.
  • the relatively short lever arms formed in this way allow, on the one hand, a compact design and, on the other hand, easier lifting of the cutting unit around the horizontal axis.
  • At least one hydraulic cylinder which is articulated on the one hand on the cross member and on the other hand on an upward extension of the guide element can be used.
  • the conveying means is formed from a conveyor belt, the deflection of which on the cutting unit side is arranged almost coaxially with the axis.
  • the compact design is further improved by this measure, since the otherwise required separate deflection roller can be dispensed with, especially since it can be formed directly by the horizontal axis itself.
  • the horizontal axis in the region of the fork legs is preferably displaced by means of slide bearings in order to be able to absorb any transverse movements of the cutting unit without damage.
  • a surface mining device 1 which essentially has the following components: a crawler track 2 with a substructure 3, a superstructure 4 arranged thereon, a combined extraction and loading element 5, a guide element 6, a drive 7 for the extraction and loading element 5 , a suspension 8 for the extraction and loading member 5 and a conveyor 9 designed as a conveyor .
  • the extraction and loading element 5 is designed as a screw conveyor (not shown) which conveys in the opposite direction and is preferably equipped with breaking elements in the form of chisels or the like in the region of its outer peripheral surface.
  • the extraction and loading member 5 works undershot, i.e.
  • the material obtained is conveyed to the center between the extraction and loading element 5 and the guide element 6 arranged behind it and passed through an opening 11 provided here to the conveyor belt 9 provided on the device.
  • the combined extraction and loading element 5 and the guide element 6 are rotatably mounted about a horizontal axis 12 in the area of the suspension 8 formed from a fork.
  • the suspension itself and thus also the extraction and loading element 5 can be pivoted in the transverse direction on the device side about an axis pin 13 which also runs horizontally but is arranged in a different plane than the horizontal axis 12.
  • the horizontal axis 12 is arranged between the end regions 14 of the fork legs.
  • Hydraulic cylinders 15, which are articulated on the fork 8 on the one hand and on the other hand on a vertical extension 16 of the guide element 6, serve to rotate the extraction and loading element 5 about the horizontal axis 12. During the actuation of the hydraulic cylinders 15, they pivot about the fork-side pivot point 17 while simultaneously lifting the extraction and loading element 5.
  • the deflection roller 18 of the conveyor belt 9 is also placed around the horizontal axis 12. Falling of the material obtained on the ground 20 is prevented by other organs, not shown.
  • the pivoting movement of the fork 8 about the axle journal 13, which preferably runs along the device center line, is generated by a lifting cylinder 21 extending between the superstructure 4 and the fork 8 outside the device center line.
  • FIG. 2 shows a partial section of the fork 8. It consists of a leg 24 arranged transversely in front of the device and a respective side leg 25.
  • the fork 8 can be pivoted on the device side about the already mentioned axle journal 13 (only indicated) and is supported in this area by sliding bearings 26.
  • plain bearings 27 are provided for receiving the horizontal axis.
  • a sliding element 31, 32 is provided in the outer regions 28, 29 of both the fork leg 24 and the corresponding end face 30 of the device 1.

Abstract

Loading installation for a winning element (5), in particular a loading member (5) which is designed as a screw conveyor and if need be at the same time forms the winning element and interacts with a guide element (6). The loading installation (5) is arranged transversely in front of an appliance (1), preferably movable on caterpillar tracks (2), in such a way that a fork (8) is provided which is pivotable in the transverse direction about an axle journal (13) displaced in the centre axis of the appliance. The loading installation together with guide element is rotatably mounted about a horizontal axis which extends in the area between the free fork arms. <IMAGE>

Description

Die Erfindung betrifft eine Verstelleinrichtung der Schrämeinheit an einem auf Raupen verfahrbaren Gewinnungsgerät im Tagebau, wobei die Schrämeinheit aus mindestens einer mit einem Führungselement zusammenwirkenden Brech- und Förderschnecke gebildet ist und mittels einer Aufhängung quer vor dem Gewinnungsgerät liegend angelenkt ist und wobei das gebrochene Material von außen zur Schneckenmitte transportierbar und dort durch eine im Führungselement vorgesehene Öffnung auf ein nachgeschaltetes Fördermittel übergebbar ist.The invention relates to an adjusting device of the cutting unit on a mining device which can be moved on caterpillars in opencast mining, the cutting unit being formed from at least one crushing and conveying screw interacting with a guide element and being articulated horizontally in front of the mining device by means of a suspension, and the broken material being from the outside can be transported to the center of the screw and can be transferred to a downstream conveyor through an opening provided in the guide element.

Durch die DE-C-33 23 395 sowie die DE-C-25 17 122 sind Vortriebsmaschinen für Bergbaustrecken und Tunnelstrecken bekannt. Die Ladeorgane sind als Förderschnecken ausgebildet, die mit Tragrahmen beiderseits der Fördervorrichtung armartig schwenkbar sind. In den Tragarmen sind im rückwärtigen Bereich der Förderschnecken und zu diesen parallel Laderinnen bildende Führungselemente angeordnet. Die Förderschnecken sind auf ihrem Schneckensteg zumindest bereichsweise mit Brechwerkzeugen besetzt, wobei die Führungselemente in diesem Bereich als Brechwiderlager dienen. Die Tragrahmen sind unabhängig voneinander um ihre vertikalen Achsen schwenkbar, um so eine gewisse Kurvengängigkeit der gesamten Maschine zu gewährleisten. Das eigentliche Gewinnungsorgan ist vor den Förderschnecken angeordnet, so daß hier eine Trennung zwischen den Vorgängen Gewinnen und Abtransportieren gegeben ist.From DE-C-33 23 395 and DE-C-25 17 122 tunneling machines for mining and tunnel routes are known. The loading elements are designed as screw conveyors, which can be swiveled arm-like on both sides of the conveying device with a supporting frame. In the support arms, in the rear area of the screw conveyors and guide elements forming loaders parallel to them, are arranged. The screw conveyors are at least partially equipped with crushing tools on their screw web, the guide elements serving as crushing abutments in this area. The support frames can be swiveled independently of one another about their vertical axes in order to ensure that the entire machine can move around curves. The actual extraction organ is arranged in front of the screw conveyors, so that there is a separation between the extraction and removal processes.

Vortriebsmaschinen der angesprochenen Gattung eignen sich gut im Untertagebau, wo lediglich geringe Abtragshöhen gegeben sind. Vielfach sind den Ladeorganen die eigentlichen Gewinnungsorgane vorgeschaltet, so daß die Ladeorgane selber nur das zu Boden fallende abgehauene Material aufnehmen und ggf. noch zerkleinern müssen.Tunneling machines of the type mentioned are well suited for underground mining, where there are only low removal heights. In many cases, the actual extraction organs are connected upstream of the loading organs, so that the loading organs themselves only have to take up the cut material falling to the ground and possibly have to shred them.

Darüberhinaus ist einem Firmenprospekt der Firmen PHB Weserhütte AG und Paurat GmbH ein sogenannter C-Miner zum kontinuierlichen Gewinnen harter Materialien im Tagebau zu entnehmen. (C-Miner for continuous mining of hard materials in open cast mines, PWH printed matter: C13251,85.11.30). Diesem Prospekt ist die Verstelleinrichtung der Schrämeinheit an einem auf Raupen verfahrbaren Gewinnungsgerät zu entnehmen. Die Schrämeinheit ist aus mehreren mit einem Führungselement zusammenwirkenden Brech- und Förderschneckensegmenten gebildet. Das gebrochene Material wird von außen nach innen zur Schneckenmitte transportiert und dort durch eine im Führungselement vorgesehene Öffnung auf ein nachgeschaltetes Fördermittel übergeben.In addition, a company brochure from PHB Weserhütte AG and Paurat GmbH shows what is known as a C-miner for the continuous extraction of hard materials in open-cast mining. (C-Miner for continuous mining of hard materials in open cast mines, PWH printed matter: C13251,85.11.30). This brochure shows the adjustment device of the cutting unit on a mining device that can be moved on caterpillars. The cutting unit is off several crushing and conveyor screw segments interacting with a guide element. The broken material is transported from the outside inwards to the center of the screw, where it is transferred to a downstream conveyor through an opening provided in the guide element.

Analog dazu ist einem weiteren Firmenprospekt der Firma Paurat GmbH aus dem Jahre 1986 (Senkhelix - das neue Verfahren zum schnellen Senken unter allen Gesteinsbedingungen) ebenfalls eine Schrämeinheit an einem auf Raupen verfahrbaren Gewinnungsgerät für Einsatzfälle unter Tage zu entnehmen. Auch hier ist die Schrämeinheit aus mindestens einer mit einem Führungselement zusammenwirkenden Brech- und Förderschnecke gebildet, wobei das gebrochene Material von außen zur Schneckenmitte transportiert und dort durch eine im Führungselement vorgesehene Öffnung auf ein nachgeschaltetes Fördermittel übergeben wird.Similarly, another company brochure from Paurat GmbH from 1986 (Senkhelix - the new method for rapid lowering under all rock conditions) also shows a cutting unit on a mining device that can be moved on caterpillars for underground applications. Here, too, the cutting unit is formed from at least one crushing and conveying screw which interacts with a guide element, the broken material being transported from the outside to the center of the screw and being transferred there to a downstream conveying means through an opening provided in the guide element.

Den Schrämeinheiten beider Firmenprospekte ist gemeinsam, daß ein kontinuierlicher Schneid- und Förderprozeß des Gewinnungsorganes erzielt wird. Die Nachteile der in den Firmenprospekten beschriebenen Schrämeinheiten sind im wesentlichen darin begründet, daß in Abhängigkeit vom Durchmesser der Schrämeinheit lediglich sehr geringe Gesteinsschichtenhöhen in einem Arbeitsgang erfaßt werden können. Zwar wird in dem Firmenprospekt der Firma Paurat (Senkhelix) bereits eine Möglichkeit zum Anheben des gesamten Gerätes beschrieben, wobei durch die aufgezeigte Möglichkeit die Kontinuität des Gewinnungsprozesses unterbrochen wird, da die Raupen nicht mehr verfahrbar sind. Das nach oben abgebrochene Material fällt auf den Boden und kann so u.U. beim Absenken der Schrämeinheit zu Schwierigkeiten beim Ladevorgang führen.The cutting units of both company brochures have in common that a continuous cutting and conveying process of the extraction organ is achieved. The disadvantages of the cutting units described in the company brochures are essentially due to the fact that, depending on the diameter of the cutting unit, only very small rock layer heights can be detected in one operation. In the company brochure of the Paurat company (Senkhelix) a possibility of lifting the entire device is already described, whereby the continuity of the extraction process is interrupted by the option shown, since the caterpillars can no longer be moved. The material broken off at the top falls on the floor and may lead to difficulties in loading when lowering the cutting unit.

Darüberhinaus ist der US-PS 3 861 475 eine Erdbearbeitung- bzw. -bewegungsmaschine zu entnehmen, die ein Chassis samt Reifenfahrwerk mit dahinter angeordnetem Walzenkörper aufweist. Vor dem Gerät ist eine aus mindestens einer Schnecke bestehende und in einem Rahmen gehaltene Bodenbearbeitungseinrichtung angeordnet, wobei der Rahmen einerseits mittels eines Hydraulikzylinders anhebbar und andererseits um eine Horizontalachse schwenkbar ist. Dieses Gerät ist ausschließlich für das Auflockern von Böden, sei es für landwirtschaftliche Zwecke oder aber für den Straßenbau mit anschließender Verdichtung einsetzbar. Ein Gewinnen, d.h. ein Schneiden von Gesteinsschichten, wie es beispielsweise im Tagebau vonstatten geht, mit einer Materialübergabe auf einen Abzugsförderer ist hier weder vorgesehen noch möglich. Da dieses Gerät zum Hereingewinnen von zerkleinertem Gestein am Boden nicht geeignet ist, kann auch die Höhenverstellmöglichkeit bzw. die Möglichkeit der Verschwenkbarkeit des Rahmens gegenüber dem Gerät lediglich auf unterschiedlich geneigte Bodenverhältnisse anwendbar sein, damit mittels dieses Gerätes ein entsprechendes Planum erzeugt werden kann.Furthermore, US Pat. No. 3,861,475 shows an earthworking machine or moving machine which has a chassis including a tire chassis with a roller body arranged behind it. In front of the device there is a soil cultivation device consisting of at least one screw and held in a frame, the frame being liftable on the one hand by means of a hydraulic cylinder and on the other hand being pivotable about a horizontal axis. This device is only for loosening soil, be it for agricultural purposes or for road construction can be used with subsequent compression. Extraction, ie the cutting of layers of rock, as is done, for example, in open-cast mining, with the transfer of material to a discharge conveyor is neither provided nor possible here. Since this device is not suitable for extracting crushed rock on the ground, the height adjustment option or the possibility of pivoting the frame relative to the device can only be applicable to differently inclined ground conditions, so that a corresponding subgrade can be generated using this device.

Einem Beitrag, Schaufelradbagger, 1986, P 131.12 der Trans Techn Publication, Clausthal-Zellerfeld, ist in Figur 2 ein sogenannter "Continuous Miner" für den Einsatz im Tagebau zu entnehmen, der im wesentlichen auch bereits dem Prospekt der PHB Weerhütte AG und Paurat GmbH entspricht, wie er bereits vorab behandelt wurde.A contribution, Schaufelradbagger, 1986, P 131.12 of the Trans Techn Publication, Clausthal-Zellerfeld, shows a so-called "continuous miner" for use in open-cast mining in FIG. 2, which essentially also already exists in the brochure of PHB Weerhütte AG and Paurat GmbH corresponds to how it was treated in advance.

Der Erfindung liegt die Aufgabe zugrunde, eine im gattungbildenden Teil des Hauptpatentanspruches beschriebene Verstelleinrichtung der Schrämeinheit dahingehend weiterzubilden, daß neben dem kontinuierlichen Schneid- und Förderprozeß die Schrämeinheit auch zum Abbau höher gelegener Materialien verwendbar sein soll. Ferner soll in allen Abbausituationen gewährleistet werden, daß das abzufördernde Gut bei der Übergabe auf ein im Anschluß an die Schrämeinheit angeordnetes Fördermittel nicht auf den Erdboden fällt und so ein Zurückfahren des Gewinnungsgerätes zum neuerlichen Einsammeln des durchgefallenen Haufwerkes notwendig macht. Ferner soll der konstruktive Aufbau des Gewinnungsgerätes in Verbindung mit der Schrämeinheit sowie deren Anstellung vereinfacht werden.The invention has for its object to further develop an adjustment device of the cutting unit described in the generic part of the main patent claim that in addition to the continuous cutting and conveying process, the cutting unit should also be usable for the dismantling of higher-lying materials. Furthermore, it should be ensured in all dismantling situations that the goods to be removed do not fall onto the ground when they are handed over to a conveyor arranged after the cutting unit, and so that the extraction device has to be moved back to collect the failed pile again. Furthermore, the construction of the extraction device in connection with the cutting unit and its employment should be simplified.

Diese Aufgabe wird durch die Kombination folgender Merkmale gelöst:

  • die Schrämeinheit ist mit einer gabelförmig ausgebildeten Aufhängung versehen und gemeinsam mit dieser um eine in Gerätefahrtrichtung liegende horizontale Achse schwenkbar,
  • die Schrämeinheit selber ist an der Aufhängung um eine quer zur Fahrtrichtung angeordnete Achse schwenkbar,
  • die Schrämeinheit ist über die Aufhängung direkt am Geräteunterbau abgestützt.
This task is solved by combining the following features:
  • the cutting unit is provided with a fork-shaped suspension and, together with it, can be pivoted about a horizontal axis lying in the direction of travel of the device,
  • the cutting unit itself can be pivoted on the suspension around an axis arranged transversely to the direction of travel,
  • the cutting unit is supported directly on the machine base via the suspension.

Durch die erfindungsgemäßen Merkmale wird sichergestellt, daß bei verhältnismäßig einfachem konstruktivem Aufbau in jeder Höhen- oder Neigungsstellung der Schrämeinheit ein kontinuierlicher Schneid- und Fördervorgang realisierbar ist.The features according to the invention ensure that a continuous cutting and conveying process can be implemented with a relatively simple structural design in any height or inclination position of the cutting unit.

Vorzugsweise besteht die Aufhängung aus einem Querträger und zugehörigen Schenkeln. Die Schrämeinheit ist um die sich zwischen den freien Enden der Schenkel erstreckende Achse schwenkbar. Die so gebildeten relativ kurzen Hebelarme erlauben zum einen eine kompakte Bauform und zum anderen ein leichteres Anheben der Schrämeinheit um die horizontale Achse herum.The suspension preferably consists of a cross member and associated legs. The cutting unit is pivotable about the axis extending between the free ends of the legs. The relatively short lever arms formed in this way allow, on the one hand, a compact design and, on the other hand, easier lifting of the cutting unit around the horizontal axis.

Zum Schwenken der Schrämeinheit um die Horizontalachse herum ist mindestens ein gelenkig einerseits am Querträger und andererseits an einer nach oben gerichteten Verlängerung des Führungselementes befestigter Hydraulikzylinder einsetzbar.For pivoting the cutting unit around the horizontal axis, at least one hydraulic cylinder which is articulated on the one hand on the cross member and on the other hand on an upward extension of the guide element can be used.

Einem weiteren Gedanken der Erfindung gemäß ist das Fördermittel aus einem Förderband gebildet, dessen schrämeinheitsseitige Umlenkung nahezu achsgleich mit der Achse angeordnet ist. Durch diese Maßnahme wird die kompakte Bauform noch verbessert, da die ansonsten notwendige separate Umlenkrolle entfallen kann, zumal sie unmittelbar durch die horizontale Achse selber gebildet werden kann. Vorzugsweise ist die horizontale Achse im Bereich der Gabelschenkel mittels Gleitlagern verlagert, um so auch evtl. Querbewegungen der Schrämeinheit ohne Beschädigungen aufnehmen zu können.According to a further concept of the invention, the conveying means is formed from a conveyor belt, the deflection of which on the cutting unit side is arranged almost coaxially with the axis. The compact design is further improved by this measure, since the otherwise required separate deflection roller can be dispensed with, especially since it can be formed directly by the horizontal axis itself. The horizontal axis in the region of the fork legs is preferably displaced by means of slide bearings in order to be able to absorb any transverse movements of the cutting unit without damage.

Eine sinnvolle Weiterbildung des Erfindungsgegenstandes ist darin zu sehen, daß die Schwenkbewegung der Aufhängung um einen vertikalen im Querträger angeordneten Achszapfen durch mindestens einen außerhalb der Gerätemittellinie zwischen Geräteunterbau und Querträger angeordneten Hubzylinder erzeugbar ist. Der Querträger der Aufhängung ist vorzugsweise am Achszapfen ebenfalls gleitgelagert.A useful further development of the subject matter of the invention can be seen in the fact that the pivoting movement of the suspension around a vertical journal arranged in the cross member can be generated by at least one lifting cylinder arranged outside the device center line between the device base and the cross member. The cross member of the suspension is preferably also slidably mounted on the journal.

Die beim Abbau des Materials auftretenden Reaktionskräfte, in Fahrtrichtung des Gewinnungsgerätes gesehen, können bewirken, daß der ohnehin zwischen den Stirnflächen des Gerätes und der Schenkel vorhandene geringe Spalt durch Verkantung der Schenkel in der einen oder anderen Richtung geschlossen wird und die Bauteile unter metallischer Berührung reibend aneinander liegen. Einerseits kann es so zu Beschädigungen an den aneinander reibenden Flächen kommen und zum anderen wird der Achszapfen in Mitleidenschaft gezogen, so daß sich hier später unerwünschte Exzentrizitäten einstellen können. Zur Reduzierung des zwischen der Aufhängung und dem Geräteunterbau vorhandenen Spaltes C am Querträger und/oder am korrespondierenden Bereich des Unterbaues werden vorzugsweise Gleitkörper angeordnet, die, einem weiteren Gedanken der Erfindung gemäß, im Bereich der Geräteaußenkanten und/oder der Querträgeraußenkanten angeordnet sind. Durch diese Maßnahme können die Kräfte wesentlich besser von der Schrämeinheit auf das Gerät übertragen werden, wobei gleichzeitig der Achszapfen und die Aufhängung entlastet werden.The reaction forces occurring during the dismantling of the material, seen in the direction of travel of the extraction device, can cause the small gap that is present anyway between the end faces of the device and the leg to be closed by tilting the leg in one direction or the other and to rub the components with metallic contact lie together. On the one hand, this can result in damage to the surfaces rubbing against each other and, on the other hand, the axle journal is affected, so that undesirable eccentricities can occur later on. In order to reduce the gap C between the suspension and the device substructure on the cross member and / or on the corresponding area of the substructure, sliding bodies are preferably arranged which, according to a further idea of the invention, are arranged in the area of the device outer edges and / or the cross member outer edges. With this measure, the forces can be transferred much better from the cutting unit to the device, whereby the axle journal and the suspension are relieved at the same time.

Die Erfindung ist in der Zeichnung dargestellt und wird wie folgt beschrieben. Es zeigen:

Fig. 1
Tagebaugerät mit einem als Gewinnungsorgan ausgebildeten Ladeorgan
Fig. 2
Schematische Darstellung der Gabel und des Gerätes mit dazwischen angeordneten Gleitkörpern
The invention is illustrated in the drawing and is described as follows. Show it:
Fig. 1
Opencast mining device with a loading device designed as a mining device
Fig. 2
Schematic representation of the fork and the device with sliding bodies arranged between them

Fig. 1 zeigt ein Tagebaugerät 1, welches im wesentlichen folgende Bauteile aufweist: Ein Raupenfahrwerk 2 mit Unterbau 3, einem darauf angeordneten Oberbau 4, einem kombinierten Gewinnungs- und Ladeorgan 5, einem Führungselement 6, einem Antrieb 7 für das Gewinnungs- und Ladeorgan 5, einer Aufhängung 8 für das Gewinnungs- und Ladeorgan 5 sowie einem als Förderband ausgebildeten Fördermittel 9. Die Funktionsweise des Tagebaugerätes 1 stellt sich etwa wie folgt dar: Das Gerät 1 fährt mit dem quer davorliegenden Gewinnungs- und Ladeorgan 5 in das abzubauende Material 10 hinein. Das Gewinnungs- und Ladeorgan 5 ist als gegensinnig zur Mitte hin fördernde Förderschnecke (nicht dargestellt) ausgebildet, die vorzugsweise im Bereich ihrer äußeren Umfangsfläche mit Brechelementen in Form von Meißeln oder dgl. besetzt ist. Das Gewinnungs- und Ladeorgan 5 arbeitet unterschlächtig, d.h. das gewonnene Material wird zwischen dem Gewinnungs- und Ladeorgan 5 und dem dahinter angeordneten Führungselement 6 zur Mitte gefördert und durch eine hier vorgesehene Öffnung 11 dem geräteseitig vorgesehenen Förderband 9 übergeben. Das kombinierte Gewinnungs- und Ladeorgan 5 sowie das Führungselement 6 sind im Bereich der, aus einer Gabel gebildeten Aufhängung 8 um eine horizontale Achse 12 drehbar gelagert.1 shows a surface mining device 1 which essentially has the following components: a crawler track 2 with a substructure 3, a superstructure 4 arranged thereon, a combined extraction and loading element 5, a guide element 6, a drive 7 for the extraction and loading element 5 , a suspension 8 for the extraction and loading member 5 and a conveyor 9 designed as a conveyor . The extraction and loading element 5 is designed as a screw conveyor (not shown) which conveys in the opposite direction and is preferably equipped with breaking elements in the form of chisels or the like in the region of its outer peripheral surface. The extraction and loading member 5 works undershot, i.e. the material obtained is conveyed to the center between the extraction and loading element 5 and the guide element 6 arranged behind it and passed through an opening 11 provided here to the conveyor belt 9 provided on the device. The combined extraction and loading element 5 and the guide element 6 are rotatably mounted about a horizontal axis 12 in the area of the suspension 8 formed from a fork.

Die Aufhängung selber und damit auch das Gewinnungs- und Ladeorgan 5 ist geräteseitig um einen ebenfalls horizontal verlaufenden jedoch in einer anderen Ebene als die horizontale Achse 12 angeordneten Achszapfen 13 in Querrichtung schwenkbar. Die horizontale Achse 12 ist zwischen den Endbereichen 14 der Gabelschenkel angeordnet. Zum Drehen des Gewinnungs- und Ladeorganes 5 um die horizontale Achse 12 dienen Hydraulikzylinder 15, die einerseits gelenkig an der Gabel 8 und andererseits an einer vertikalen Verlängerung 16 des Führungselementes 6 angeordnet sind. Während der Betätigung der Hydraulikzylinder 15 schwenken diese bei gleichzeitigem Anheben des Gewinnungs- und Ladeorganes 5 um den gabelseitigen Gelenkpunkt 17.The suspension itself and thus also the extraction and loading element 5 can be pivoted in the transverse direction on the device side about an axis pin 13 which also runs horizontally but is arranged in a different plane than the horizontal axis 12. The horizontal axis 12 is arranged between the end regions 14 of the fork legs. Hydraulic cylinders 15, which are articulated on the fork 8 on the one hand and on the other hand on a vertical extension 16 of the guide element 6, serve to rotate the extraction and loading element 5 about the horizontal axis 12. During the actuation of the hydraulic cylinders 15, they pivot about the fork-side pivot point 17 while simultaneously lifting the extraction and loading element 5.

Um eine kompakte Bauweise zu erreichen, ist die Umlenkrolle 18 des Förderbandes 9 ebenfalls um die horizontale Achse 12 herumgelegt. Ein Herabfallen des gewonnen Materials auf den Erdboden 20 wird durch weitere nicht dargestellte Organe verhindert.
Die Schwenkbewegung der Gabel 8 um den Achszapfen 13, der vorzugsweise entlang der Gerätemittellinie verläuft, wird durch einen außerhalb der Gerätemittellinie, sich zwischen dem Oberbau 4 und der Gabel 8 erstreckenden Hubzylinder 21 erzeugt.In order to achieve a compact design, the deflection roller 18 of the conveyor belt 9 is also placed around the horizontal axis 12. Falling of the material obtained on the ground 20 is prevented by other organs, not shown.
The pivoting movement of the fork 8 about the axle journal 13, which preferably runs along the device center line, is generated by a lifting cylinder 21 extending between the superstructure 4 and the fork 8 outside the device center line.

Figur 2 zeigt einen Teilausschnitt der Gabel 8. Sie besteht aus einem quer vor dem Gerät angeordneten Schenkel 24 sowie jeweils einem seitlichen Schenkel 25. Die Gabel 8 ist geräteseitig um den schon angesprochenen Achszapfen 13 (nur angedeutet) schwenkbar und in diesem Bereich gleitgelagert 26. In den Endbereichen 14 der Gabelschenkel 25 sind zur Aufnahme der horizontalen Achse 12 Gleitlager 27 vorgesehen. Zur Schonung des Achszapfens 13 bei Reaktionskräften F, die entgegen der Schneidrichtung wirken, ist in den Außenbereichen 28,29 sowohl des Gabelschenkels 24 als auch der korrespondierenden Stirnseite 30 des Gerätes 1 jeweils ein Gleitelement 31, 32 vorgesehen. Durch diese Maßnahme wird einerseits der ohnehin vorhandene Spalt c reduziert und zum anderen eine metallische Berührung der Flächen 28 und 30 vermieden, wobei die eigentliche Berührung zwischen den Gleitelementen 31 und 32 stattfindet. Da die Verkantung nunmehr nahezu ausgeschlossen ist, werden der Achszapfen 13 und auch die Gabel 8 kaum noch belastet.FIG. 2 shows a partial section of the fork 8. It consists of a leg 24 arranged transversely in front of the device and a respective side leg 25. The fork 8 can be pivoted on the device side about the already mentioned axle journal 13 (only indicated) and is supported in this area by sliding bearings 26. In the end regions 14 of the fork legs 25 12 plain bearings 27 are provided for receiving the horizontal axis. In order to protect the journal 13 from reaction forces F which act counter to the cutting direction, a sliding element 31, 32 is provided in the outer regions 28, 29 of both the fork leg 24 and the corresponding end face 30 of the device 1. This measure on the one hand reduces the gap c, which is already present, and on the other hand avoids metallic contact of the surfaces 28 and 30, the actual contact between the sliding elements 31 and 32 taking place. Since the tilting is now almost impossible, the journal 13 and the fork 8 are hardly loaded.

Claims (9)

  1. Device for adjusting and displacing the cutting unit (5,6) on a mining machine (3), travelling on caterpillar tracks (2), for open cast mining, the cutting unit (5,6) being hinged on by a suspension means (8) so that it lies transversely in front of the mining machine, and consisting of at least one cutting and conveying worm (5) co-operating with a guide element (6), and the broken material being able to be transported from the outside to the centre of the worm and there transferred through an opening provided in the guide element (6) onto a conveyor means (9) arranged downstream, characterised in that:
    - the cutting unit (5,6) is provided with a fork-like suspension means and is pivotable together with the latter about a horizontal axis (13) lying in the direction of travel of the machine,
    - the cutting unit (5,6) itself is pivotable on the suspension means (8) about an axis (12) arranged at right-angles to the direction of travel,
    - the cutting unit (5,6) is supported directly on the substructure (3) of the machine by way of the suspension means (8).
  2. Adjusting and displacing device according to Claim 1, characterised in that the suspension means (8) consists of a transverse support (24) and limbs (25), and that the cutting unit (5,6) is pivotable about the axis (12) extending between the free ends (14) of the limbs (25).
  3. Adjusting and displacing device according to one of the preceding Claims, characterised in that for the pivoting of the cutting unit (5,6) about the axis (12) at least one hydraulic cylinder can be used which is articulated on the one hand on the transverse support (24) and on the other hand on an upward extension (16) of the guide element (6).
  4. Adjusting and displacing device according to one of the preceding Claims, characterised in that the conveyor means consists of a conveyor belt (9), of which the return point at the end nearest the cutting unit is arranged so that its axis practically coincides with the axis (12).
  5. Adjusting and displacing device according to one of the preceding Claims, characterised in that the axis (12) is displaced on the limbs (25) by means of sliding bearings (27).
  6. Adjusting and displacing device according to one of the preceding Claims, characterised in that the pivoting movement of the suspension means (8) about a vertical axle journal (13) arranged in the transverse support (24) can be produced by means of at least one lifting cylinder (21) arranged outside the central line of the machine between the substructure (3) of the machine and the transverse support (24).
  7. Adjusting and displacing device according to one of the preceding Claims, characterised in that the transverse support (24) of the suspension means (8) is slidingly supported on the axle journal (13).
  8. Adjusting and displacing device according to one of the preceding Claims, characterised in that in order to reduce the gap (C) present between the suspension means (8) and the substructure (3) of the machine, sliding bodies (31,32) are arranged on the transverse support (24) and/or on the corresponding region of the substructure (3).
  9. Adjusting and displacing device according to Claim 8, characterised in that sliding bodies (31,32) are arranged in the region of the outer edges of the machine and/or of the outer edges of the transverse support.
EP87101613A 1986-04-25 1987-02-06 Device for adjusting and shifting a loading installation for a winning element Expired - Lifetime EP0242514B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101613T ATE69486T1 (en) 1986-04-25 1987-02-06 DEVICE FOR ADJUSTING AND RELOCATING A LOADING DEVICE FOR A COLLECTION ORGAN.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863614051 DE3614051A1 (en) 1986-04-25 1986-04-25 DEVICE FOR ADJUSTING AND RELOCATING A LOADING DEVICE FOR A RECOVERY ORGAN
DE3614051 1986-04-25

Publications (2)

Publication Number Publication Date
EP0242514A1 EP0242514A1 (en) 1987-10-28
EP0242514B1 true EP0242514B1 (en) 1991-11-13

Family

ID=6299541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101613A Expired - Lifetime EP0242514B1 (en) 1986-04-25 1987-02-06 Device for adjusting and shifting a loading installation for a winning element

Country Status (5)

Country Link
EP (1) EP0242514B1 (en)
AT (1) ATE69486T1 (en)
DE (2) DE3614051A1 (en)
ES (1) ES2027237T3 (en)
GR (1) GR3003197T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105178965A (en) * 2015-10-16 2015-12-23 新疆一重重型机械设备制造有限公司 Mineral aggregate collector

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006013343U1 (en) * 2006-08-30 2006-12-07 MAN TAKRAF Fördertechnik GmbH Chute e.g. for continuous operating surface mining production equipment, is flat having rectangular straight guide plate and two side plates and has edge whose upper surface forms obtuse angle with guide plate
CN102337894A (en) * 2011-11-01 2012-02-01 中联重科物料输送设备有限公司 Ore loading machine
CN107165631A (en) * 2017-05-17 2017-09-15 广西隆成机械设备制造有限公司 A kind of large-scale intelligent Mars Miner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861475A (en) * 1971-11-24 1975-01-21 Witold Kuncewicz Combined leveling and compacting earth working machine
DE2517122C2 (en) * 1975-04-18 1982-06-24 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Tunneling machine
DE3323395C2 (en) * 1983-06-29 1985-05-02 Friedrich Wilhelm Paurat Driving machine for mining routes and tunnels
DE3402031C1 (en) * 1984-01-21 1985-01-03 Friedrich Wilhelm Paurat Machine for driving roadways and tunnels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105178965A (en) * 2015-10-16 2015-12-23 新疆一重重型机械设备制造有限公司 Mineral aggregate collector

Also Published As

Publication number Publication date
GR3003197T3 (en) 1993-02-17
DE3614051C2 (en) 1989-07-20
EP0242514A1 (en) 1987-10-28
ES2027237T3 (en) 1992-06-01
ATE69486T1 (en) 1991-11-15
DE3614051A1 (en) 1987-10-29
DE3774471D1 (en) 1991-12-19

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