EP2236745B1 - Excavation machine, in particular surface miner and method for fitting and detaching a transport device for a excavation machine - Google Patents

Excavation machine, in particular surface miner and method for fitting and detaching a transport device for a excavation machine Download PDF

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Publication number
EP2236745B1
EP2236745B1 EP20100157057 EP10157057A EP2236745B1 EP 2236745 B1 EP2236745 B1 EP 2236745B1 EP 20100157057 EP20100157057 EP 20100157057 EP 10157057 A EP10157057 A EP 10157057A EP 2236745 B1 EP2236745 B1 EP 2236745B1
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EP
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Prior art keywords
transport device
machine frame
conveyor suspension
suspension device
accordance
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EP20100157057
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German (de)
French (fr)
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EP2236745A3 (en
EP2236745A2 (en
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Winfried von Schönebeck
Thomas Mannebach
Cyrus Barimani
Günter HÄHN
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Wirtgen GmbH
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Wirtgen GmbH
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Priority to EP14175635.3A priority Critical patent/EP2835495B1/en
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    • 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

Definitions

  • the invention relates to a mining machine, in particular a surface miner according to the preamble of claim 1, and a method for removing and installing a transport device in a mining machine according to the preamble of claim 13.
  • Such mining machines are used in opencast mining, earthworks and rock construction, such a mining machine being e.g. Rock cuts, breaks and loads in one go, without the need for blasting.
  • the mining machine is also suitable for the extraction of gypsum, soft limestone or coal.
  • a cutting roller is used, which transfers the decomposition material to a first transport device, which is arranged stationary but interchangeable within the machine frame.
  • the excavation material is transported obliquely upwards on the first transport device to a discharge point at which the excavation material is dropped onto a second transport device whose lower end is located below the upper end of the first transport device.
  • the second transport device also transports the decomposition material from a transfer point at the lower end of the second transport device up to a discharge point at which the mining material can either be dropped on a transport vehicle or laterally next to the mining machine.
  • the second transport device is laterally pivotable by ⁇ 90 ° by a Bandauftress theory stressed for the second transport device is pivotable about a vertical axis, which passes virtually through the transfer point.
  • the second transport means is pivotable about a horizontal pivot axis to bring the upper end of the second transport means to a desired discharge height.
  • the figures vertical and horizontal are to be understood as meaning that the mining machine stands on a horizontal ground.
  • the invention is therefore an object of the invention to provide a mining machine of the type mentioned, and a method for installing and removing a stationary transport device in a mining machine, in which the installation and removal of the transport device with little expenditure of time is possible.
  • the invention advantageously provides that the band suspension device can be pivoted together with the second transport device relative to the machine frame about a second horizontal pivot axis.
  • the second transport device can be swiveled by a certain angle, for example 30 °, with the belt suspension device supporting it so that the lower end of the second transport device is no longer below the upper end of the first transport device.
  • machine elements are used in an advantageous manner, which are present anyway on the mining machine.
  • the band suspension device is pivotally connected to the machine frame and the second pivot axis is provided on the band suspension device such that the band suspension device can be pivoted out of the overlap region with the second transport device.
  • the second horizontal pivot axis is offset at least in the height direction relative to the first pivot axis upwards.
  • the second horizontal pivot axis at least during the pivoting of the tape suspension device has a vertical distance from the bottom, which is greater than the direct distance of the pivot axis to the lower outer end of the second transport device.
  • the tape suspension device can be locked in a working position for pivoting the second transport device and in a swivel position for mounting and dismounting the first transport device.
  • the tape hanger is pivotable relative to the machine frame, the second horizontal pivot axis being journalled in an element of the machine frame, which may also include locking devices that lock the tape hanger in two different pivot positions.
  • the element of the machine frame consists of plates arranged on both sides of the tape suspension device, which on the one hand support the second horizontal pivot axis at their ends and, on the other hand, have bores angularly offset by a desired angle, eg 30 °, relative to the second horizontal pivot axis. Grab through these holes Bolt in the Bandauf Kunststoff worn, so that the Bandaufh briefly adopted can be fixed in the respective angular positions. It is understood that the locking pins can not only be set manually, but can also be brought by means of a drive in a locking or release position.
  • a mounted on the machine frame slewing ring is pivotable about the vertical pivot axis and carries on one side of the turntable the Bandauftress discomfort experienced for the second transport device. On the opposite side may be additionally provided a counterweight.
  • the counterweight is used to compensate for the forces acting on the machine frame moments due to the weight load and the pivot position of the second conveyor.
  • the pivoting of the tape suspension device can be done with motor help, for example, in the region of the second horizontal pivot axis preferably a hydraulic rotary drive, possibly combined with a reduction gear, the Bandaufitational stressed pivoted relative to the machine frame to the second horizontal pivot axis.
  • an actuator mounted on the turntable or on the machine frame may engage the tape hanger vertically spaced from the second horizontal pivot axis to pivot the tape hanger about the second horizontal pivot axis.
  • an adjusting device of a traversing device for the counterweight can also be used for pivoting the tape suspension unit.
  • the second transport device has an endlessly circulating conveyor belt, which is guided at the mutually ends via a drive roller and a deflection roller.
  • the drive roller is preferably arranged at the upper end of the second transport device and can be displaced outwardly via a belt tensioning device for tensioning.
  • the belt tensioning device consists of a grease tensioner. This has the advantage that the belt tensioning device can be operated from a remote location.
  • a grease supply device may be provided for the grease seal which extends over the entire length of the second transport device and which has a grease feed connection at the lower end of the second transport device or on the machine frame such that the grease supply connection is accessible to a person standing on the ground ,
  • the band suspension device In the working position, the band suspension device is connected to the machine frame via the second horizontal pivot axis and secured in the working position with locking pins, which are passed through an element of the machine frame and engage in the band suspension device.
  • the lock for the pivot position of the tape suspension device is first repealed and pivoted by means of a drive Bandaufitational stressed to the second horizontal pivot axis until the desired and preset pivot position is reached. Subsequently, in turn, the locking means are introduced to lock the Bandaufitational worn in the pivot position.
  • the lower end of the second transport device is pivoted in such a way that it no longer overlaps the upper end of the stationary transport device which is fastened in the machine frame. Then, with the help of eg a lifting device, in particular a pulley, the first at the top of the fixed stationary transport device to the machine frame are lowered.
  • the lower end of the machine frame can be decoupled. Then the Bandaufmann Kunststoff soothing can be pivoted back into its working position and locked there. After the removed first transport device rests freely on the ground, the required maintenance work, e.g. a band exchange, easily accessible. The installation of the first transport device takes place in the opposite order.
  • Fig. 1 shows a mining machine 1, namely a surface miner for working off mining material such as rock, limestone or coal u. like.
  • the mining machine 1 has a machine frame 2, in which a cutting roller 4 is mounted, with which the decomposition material is milled from the bottom 3.
  • cutting roller 4 is lowered for this purpose on the floor 3 and brought to a preset milling depth.
  • the cutting roller 4 due to its rotation, raises the excavation material to a first stationary, but removable, first machine 6 supported in the machine frame 2 and extending obliquely upward from the cutting drum 4 in the machine frame 2.
  • the first transport device 6 has an endlessly circulating conveyor belt 7, which discharges the decomposition material at the upper rear end 22 of the first transport device 6 onto a transfer point 18 of a second transport device 12.
  • the first transport device 6 is suspended at its lower front end in a belt shoe 9 and at its upper end 22 releasably secured to the machine frame 2.
  • the second transport device 12 also has an endlessly circulating conveyor belt 50, which transports the removal material from the transfer point 18 in the lower region of the second transport device 12 to a discharge point 20 at which the removal material can be unloaded onto a vehicle or laterally onto the ground 3 can be dropped.
  • the second transport device 12 is supported by a belt hanger 10 which is pivotally attached to the machine frame 2.
  • the band suspension device 10 consists for example of a portal 13, which receives the second transport device 12 between struts 11.
  • the parallel, preferably vertically extending struts 11 of the portal 13 are angled at its lower end towards the front of the machine frame 2 and take at its the lower end 14 of the second conveyor end facing a horizontal pivot axis 24 to the second transport means 12 pivotally mounted in the band suspension device 10.
  • an adjusting device 16 in conjunction with a cable 17, which are pivotally mounted at the upper end of the portal, the second conveyor 12 can be changed in terms of their pitch angle and thus the height of the discharge point 20 can be determined.
  • the cable pull 17 preferably engages in the upper third of the second transport device 12.
  • the tape suspension device 10 is pivotable about a second horizontal pivot axis 28, which is mounted on the one hand in the vertical struts 11 and on the other hand on an element 25 of the machine frame 2.
  • the element 25 of the machine frame 2 has two substantially triangular plates 26, which has at its lower end holes 27 and 29 for the insertion of locking pins.
  • the holes 27 and 29 are angularly spaced by a desired pivot angle for the tape hanger 10. This swivel angle can be for example 30 °.
  • locking pins are inserted into the holes 27, so that the struts 11 of the band suspension device 10 are locked vertically.
  • pivot position of the Bandaufitationg 10 are the locking pins in the holes 29, in both mutually parallel struts 11 on both sides of the second transport device 12.
  • an adjusting device 36 is used in conjunction with a pull cable 38 which engages at a vertical distance from the pivot axis 28 at the upper end of the struts 11, preferably on both struts 11 of the portal thirteenth
  • the adjusting device 36 may be coupled directly to the machine frame 2, or as shown in the drawings, be attached to a turntable 30 which is pivotable about a vertical axis 8 relative to the machine frame 2 by, for example, ⁇ 90 ° and thus on the Bandaufmann von 10 a Pivoting the second conveyor 12 allows to the side.
  • a movable counterweight 34 can be arranged on the side opposite the tape suspension device 10, which can be moved to reduce acting on the machine frame 2 moments in different positions. Accordingly, the counterweight 34 can be moved out to different extents in accordance with the load of the second transport device 12 with decomposition material and depending on the pivot position of the second transport device 12 both laterally and vertically.
  • the already mentioned adjusting device 36 may be used be moved the counterweight 34 by means of a linkage 44 on a carriage 39 different far outward.
  • the adjusting device 36 are also used for pivoting the tape suspension device 10.
  • the first transport device can be dismantled by first the front end 22 of the first transport device 6 is released from the machine frame 2 and the first transport device, as shown in FIG Fig. 3 can be lowered via a lifting device, such as a pulley can be lowered.
  • Fig. 3 shows the first transport device 6 in the lowered position, in which the tape hanger 10 has been pivoted back into the working position. It is understood that the tape suspension device 10 may remain in the pivot position.
  • the attachment of the first transport device 6 to the belt shoe 9 can be released, thereby releasing the first transport device 6 completely from the machine frame 2.
  • FIGS. 5 and 6 show the receiving device 46 for the lower front end of the first transport device 6 on the belt shoe. 9
  • Fig. 5 showed a side view of a mounting plate 48, with which the first transport device 6 can be attached to both sides of the belt shoe 9. Laterally projecting from the first transport means 6 bearing pin 55 can be pulled out after removal of the mutual mounting plates 48 from the holder 46, for example, that the mining machine 1 is moved forward, the laterally projecting bearing pin 55 can slide on the mutual slopes 56 on the belt shoe and the first transport device 6 can settle on the floor 3.
  • the conveyor belt 50 of the second transport device 12 can be kept taut by means of a belt tensioning device consisting of a grease tensioner 58, wherein the grease tensioner acts on the linearly movable axis 60 of the upper drive roller 52 for the transport belt 50.
  • the endless circulating conveyor belt 50 is driven via the upper drive roller 52 and deflected by the lower guide roller 54.
  • the fat tensioner 58 has a grease feed device 62, which extends downwards along the second transport device 12 and opens into a grease feed port 64, which is accessible from the bottom 3.

Description

Die Erfindung betrifft eine Abbaumaschine, insbesondere einen Surface Miner nach dem Oberbegriff des Anspruchs 1, sowie ein Verfahren zum Aus- und Einbauen einer Transporteinrichtung bei einer Abbaumaschine nach dem Oberbegriff des Anspruchs 13.The invention relates to a mining machine, in particular a surface miner according to the preamble of claim 1, and a method for removing and installing a transport device in a mining machine according to the preamble of claim 13.

Derartige Abbaumaschinen werden im Tagebau, Erd- und Felsbau eingesetzt, wobei eine solche Abbaumaschine z.B. Gestein in einem Arbeitsgang schneidet, bricht und lädt, ohne dass Sprengvorgänge notwendig sind.Such mining machines are used in opencast mining, earthworks and rock construction, such a mining machine being e.g. Rock cuts, breaks and loads in one go, without the need for blasting.

Eine derartige Abbaumaschine findet sich zum Beispiel in EP 2006449 wieder.Such a mining machine can be found for example in EP 2006449 again.

Die Abbaumaschine ist auch zur Gewinnung von Gips, weichem Kalkstein oder auch Kohle geeignet. Als Abbauwerkzeug wird eine Schneidwalze verwendet, die das Abbaumaterial auf eine erste Transporteinrichtung überträgt, die innerhalb des Maschinenrahmens ortsfest aber auswechselbar angeordnet ist. Das Abbaumaterial wird schräg nach oben auf der ersten Transporteinrichtung bis zu einer Abwurfstelle transportiert, an der das Abbaumaterial auf eine zweite Transporteinrichtung abgeworfen wird, deren unteres Ende sich unterhalb des oberen Endes der ersten Transporteinrichtung befindet. Die zweite Transporteinrichtung transportiert das Abbaumaterial von einer Übernahmestelle am unteren Ende der zweiten Transporteinrichtung ebenfalls nach oben zu einer Abwurfstelle, an der das Abbaumaterial entweder auf ein Transportfahrzeug oder auch seitlich neben der Abbaumaschine abgeworfen werden kann. Hierzu ist die zweite Transporteinrichtung seitlich um jeweils ± 90° verschwenkbar, indem eine Bandaufhängeeinrichtung für die zweite Transporteinrichtung um eine vertikale Achse schwenkbar ist, die virtuell durch die Übernahmestelle hindurchläuft. Zusätzlich ist die zweite Transporteinrichtung um eine horizontale Schwenkachse schwenkbar, um das obere Ende der zweiten Transporteinrichtung auf eine gewünschte Abwurfhöhe zu bringen. Die Angaben vertikal und horizontal sind so zu verstehen, dass die Abbaumaschine auf einem horizontalen Boden steht.The mining machine is also suitable for the extraction of gypsum, soft limestone or coal. As a mining tool, a cutting roller is used, which transfers the decomposition material to a first transport device, which is arranged stationary but interchangeable within the machine frame. The excavation material is transported obliquely upwards on the first transport device to a discharge point at which the excavation material is dropped onto a second transport device whose lower end is located below the upper end of the first transport device. The second transport device also transports the decomposition material from a transfer point at the lower end of the second transport device up to a discharge point at which the mining material can either be dropped on a transport vehicle or laterally next to the mining machine. For this purpose, the second transport device is laterally pivotable by ± 90 ° by a Bandaufhängeeinrichtung for the second transport device is pivotable about a vertical axis, which passes virtually through the transfer point. In addition, the second transport means is pivotable about a horizontal pivot axis to bring the upper end of the second transport means to a desired discharge height. The figures vertical and horizontal are to be understood as meaning that the mining machine stands on a horizontal ground.

Bei derartigen Abbaumaschinen besteht der Nachteil, dass sich aufgrund der Übergabe des Abbaumaterials von der ersten Transporteinrichtung auf die zweite Transporteinrichtung zwangsläufig die Transporteinrichtungen überlappen. Insbesondere bei scharfkantigem Abbaumaterial ist es bei Beschädigung des Transportbandes einer Transporteinrichtung erforderlich, diese auszuwechseln.In the case of such mining machines, there is the disadvantage that due to the transfer of the decomposition material from the first transport device to the second transport device, the transport devices inevitably overlap. In particular, with sharp-edged mining material, it is necessary if damage to the conveyor belt of a transport device to replace them.

Auch bei anderen Störungen im Betriebsablauf der ersten ortsfesten Transporteinrichtung ist häufig ein Ausbau der ersten Transporteinrichtung erforderlich. Der Ausbau der ersten Transporteinrichtung wird allerdings durch die Anordnung der zweiten Transporteinrichtung erheblich behindert, wobei zusätzlich die Gefahr der Beschädigung der zweiten Transporteinrichtung beim Ausbau besteht. Im Resultat ist der Ein- und Ausbau der erste Transporteinrichtung äußerst zeitaufwendig, da sich beispielsweise das Transportband in der eingebauten Position der ersten Transporteinrichtung nicht auswechseln lässt.Even with other disturbances in the operation of the first stationary transport device often a removal of the first transport device is required. However, the expansion of the first transport device is considerably hindered by the arrangement of the second transport device, with the additional risk of damaging the second transport device when removing. As a result, the installation and removal of the first transport device is extremely time-consuming, since, for example, the conveyor belt in the installed position of the first transport device can not be replaced.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Abbaumaschine der eingangs genannten Art, sowie ein Verfahren zum Ein- und Ausbauen einer ortsfesten Transporteinrichtung bei einer Abbaumaschine zu schaffen, bei denen der Ein- und Ausbau der Transporteinrichtung mit geringem Zeitaufwand möglich ist.The invention is therefore an object of the invention to provide a mining machine of the type mentioned, and a method for installing and removing a stationary transport device in a mining machine, in which the installation and removal of the transport device with little expenditure of time is possible.

Zur Lösung dieser Aufgabe dienen die Merkmale der Ansprüche 1 und 11.To achieve this object, the features of claims 1 and 11 serve.

Die Erfindung sieht in vorteilhafter Weise vor, dass die Bandaufhängeeinrichtung gemeinsam mit der zweiten Transporteinrichtung relativ zu dem Maschinenrahmen um eine zweite horizontale Schwenkachse schwenkbar ist. Auf diese Weise kann die zweite Transporteinrichtung mit der sie tragenden Bandaufhängeinrichtung um einen bestimmten Winkel, z.B. von 30°, geschwenkt werden, so dass sich das untere Ende der zweiten Transporteinrichtung nicht mehr unterhalb des oberen Endes der ersten Transporteinrichtung befindet. Hierzu werden in vorteilhafter Weise Maschinenelemente verwendet, die ohnehin an der Abbaumaschine vorhanden sind. Die Bandaufhängeeinrichtung ist gelenkig mit dem Maschinenrahmen verbunden und die zweite Schwenkachse ist derart an der Bandaufhängeeinrichtung vorgesehen, dass die Bandaufhängeeinrichtung mit der zweiten Transporteinrichtung aus dem Überlappungsbereich herausgeschwenkt werden kann.The invention advantageously provides that the band suspension device can be pivoted together with the second transport device relative to the machine frame about a second horizontal pivot axis. In this way For example, the second transport device can be swiveled by a certain angle, for example 30 °, with the belt suspension device supporting it so that the lower end of the second transport device is no longer below the upper end of the first transport device. For this purpose, machine elements are used in an advantageous manner, which are present anyway on the mining machine. The band suspension device is pivotally connected to the machine frame and the second pivot axis is provided on the band suspension device such that the band suspension device can be pivoted out of the overlap region with the second transport device.

Hierzu ist die zweite horizontale Schwenkachse zumindest in Höhenrichtung relativ zur ersten Schwenkachse nach oben versetzt.For this purpose, the second horizontal pivot axis is offset at least in the height direction relative to the first pivot axis upwards.

Es kann vorgesehen sein, dass die zweite horizontale Schwenkachse zumindest während des Verschwenkens der Bandaufhängeeinrichtung einen vertikalen Abstand von dem Boden aufweist, der größer ist als der direkte Abstand der Schwenkachse zu dem unteren äußeren Ende der zweiten Transporteinrichtung.It can be provided that the second horizontal pivot axis, at least during the pivoting of the tape suspension device has a vertical distance from the bottom, which is greater than the direct distance of the pivot axis to the lower outer end of the second transport device.

Vorzugsweise ist vorgesehen, dass die Bandaufhängeeinrichtung in einer Arbeitsposition zum Verschwenken der zweiten Transporteinrichtung und in einer Schwenkposition zum Ein- und Ausbauen der ersten Transporteinrichtung arretierbar ist.It is preferably provided that the tape suspension device can be locked in a working position for pivoting the second transport device and in a swivel position for mounting and dismounting the first transport device.

Die Bandaufhängeeinrichtung ist relativ zu dem Maschinenrahmen verschwenkbar, wobei die zweite horizontale Schwenkachse in einem Element des Maschinenrahmens gelagert ist, in dem auch Arretiervorrichtungen vorgesehen sein können, die die Bandaufhängeeinrichtung in zwei unterschiedlichen Schwenkpositionen arretieren.The tape hanger is pivotable relative to the machine frame, the second horizontal pivot axis being journalled in an element of the machine frame, which may also include locking devices that lock the tape hanger in two different pivot positions.

Im Einzelnen besteht das Element des Maschinenrahmens aus beiderseitig der Bandaufhängeeinrichtung angeordneten Platten, die einerseits die zweite horizontale Schwenkachse an ihren Enden lagern und andererseits Bohrungen aufweisen, die winkelmäßig um einen gewünschten Winkel, z.B. 30°, relativ zur zweiten horizontalen Schwenkachse versetzt sind. Durch diese Bohrungen greifen Bolzen in die Bandaufhängeeinrichtung ein, so dass die Bandaufhängeinrichtung in den jeweiligen Winkelstellungen fixiert werden kann. Es versteht sich, dass die Arretierbolzen nicht nur manuell gesetzt werden können, sondern auch mit Hilfe eines Antriebs in eine Sperr- oder Freigabeposition gebracht werden können.Specifically, the element of the machine frame consists of plates arranged on both sides of the tape suspension device, which on the one hand support the second horizontal pivot axis at their ends and, on the other hand, have bores angularly offset by a desired angle, eg 30 °, relative to the second horizontal pivot axis. Grab through these holes Bolt in the Bandaufhängeeinrichtung, so that the Bandaufhängeinrichtung can be fixed in the respective angular positions. It is understood that the locking pins can not only be set manually, but can also be brought by means of a drive in a locking or release position.

Ein auf dem Maschinenrahmen gelagerter Drehkranz ist um die vertikale Schwenkachse verschwenkbar und trägt auf einer Seite des Drehkranzes die Bandaufhängeeinrichtung für die zweite Transporteinrichtung. Auf der gegenüberliegenden Seite kann zusätzlich ein Gegengewicht vorgesehen sein.A mounted on the machine frame slewing ring is pivotable about the vertical pivot axis and carries on one side of the turntable the Bandaufhängeeinrichtung for the second transport device. On the opposite side may be additionally provided a counterweight.

Das Gegengewicht dient dazu, die auf den Maschinenrahmen einwirkenden Momente aufgrund der Gewichtsbelastung und der Schwenkstellung der zweiten Transporteinrichtung zu kompensieren.The counterweight is used to compensate for the forces acting on the machine frame moments due to the weight load and the pivot position of the second conveyor.

Das Verschwenken der Bandaufhängeinrichtung kann mit motorischer Hilfe erfolgen, wobei beispielsweise im Bereich der zweiten horizontalen Schwenkachse ein vorzugsweise hydraulischer Drehantrieb, ggf. kombiniert mit einem Untersetzungsgetriebe, die Bandaufhängeeinrichtung relativ zu dem Maschinenrahmen um die zweite horizontale Schwenkachse verschwenkt.The pivoting of the tape suspension device can be done with motor help, for example, in the region of the second horizontal pivot axis preferably a hydraulic rotary drive, possibly combined with a reduction gear, the Bandaufhängeeinrichtung pivoted relative to the machine frame to the second horizontal pivot axis.

Alternativ kann eine am Drehkranz oder am Maschinenrahmen befestigte Stelleinrichtung mit vertikalem Abstand von der zweiten horizontalen Schwenkachse an der Bandaufhängeeinrichtung angreifen, um die Bandaufhängeeinrichtung um die zweite horizontale Schwenkachse zu verschwenken.Alternatively, an actuator mounted on the turntable or on the machine frame may engage the tape hanger vertically spaced from the second horizontal pivot axis to pivot the tape hanger about the second horizontal pivot axis.

Beispielsweise kann eine Stelleinrichtung einer Verfahreinrichtung für das Gegengewicht auch zum Verschwenken der Bandaufhängeeinheit verwendet werden.For example, an adjusting device of a traversing device for the counterweight can also be used for pivoting the tape suspension unit.

Die zweite Transporteinrichtung weist ein endlos umlaufendes Transportband auf, das an den beiderseitigen Enden über eine Antriebsrolle und eine Umlenkrolle geführt ist. Die Antriebsrolle ist vorzugsweise am oberen Ende der zweiten Transporteinrichtung angeordnet und kann über eine Bandspanneinrichtung zum Spannen nach außen verlagert werden.The second transport device has an endlessly circulating conveyor belt, which is guided at the mutually ends via a drive roller and a deflection roller. The drive roller is preferably arranged at the upper end of the second transport device and can be displaced outwardly via a belt tensioning device for tensioning.

Nach dem Stand der Technik ist vorgesehen, die Achse der Antriebsrolle mit Gewindeschrauben zu verlagern. Hierzu müsste sich ein Monteur zur oberen Spitze der zweiten Transporteinrichtung begeben, deren Ende sich in erheblicher Höhe befinden kann. Es versteht sich, dass damit ein erheblicher Zeitaufwand verbunden ist.According to the prior art, it is provided to displace the axis of the drive roller with threaded screws. For this purpose, a fitter would have to go to the top of the second conveyor, the end of which can be at a considerable height. It is understood that this is associated with a considerable amount of time.

Bei einer vorteilhaften Weiterentwicklung der Abbaumaschine ist daher vorgesehen, dass die Bandspanneinrichtung aus einem Fettspanner besteht. Dies hat den Vorteil, dass die Bandspanneinrichtung von einem entfernten Ort aus bedient werden kann.In an advantageous further development of the mining machine, it is therefore provided that the belt tensioning device consists of a grease tensioner. This has the advantage that the belt tensioning device can be operated from a remote location.

Beispielsweise kann eine Fettzuführeinrichtung für den Fettspanner vorgesehen sein, die sich über die gesamte Länge der zweiten Transporteinrichtung erstreckt, und die am unteren Ende der zweiten Transporteinrichtung oder am Maschinenrahmen einen Fettzuführanschluss aufweist, derart, dass der Fettzuführanschluss für eine auf dem Boden stehende Person zugänglich ist.For example, a grease supply device may be provided for the grease seal which extends over the entire length of the second transport device and which has a grease feed connection at the lower end of the second transport device or on the machine frame such that the grease supply connection is accessible to a person standing on the ground ,

In der Arbeitsposition ist die Bandaufhängeeinrichtung über die zweite horizontale Schwenkachse mit dem Maschinenrahmen verbunden sowie mit Arretierbolzen, die durch ein Element des Maschinenrahmens hindurchgeführt sind und die in die Bandaufhängeeinrichtung eingreifen, in der Arbeitsposition gesichert.In the working position, the band suspension device is connected to the machine frame via the second horizontal pivot axis and secured in the working position with locking pins, which are passed through an element of the machine frame and engage in the band suspension device.

Soll die ortsfeste Transporteinrichtung ausgebaut werden, wird zunächst die Arretierung für die Schwenkposition der Bandaufhängeeinrichtung aufgehoben und mit Hilfe eines Antriebs die Bandaufhängeeinrichtung um die zweite horizontale Schwenkachse verschwenkt, bis die gewünschte und voreingestellte Schwenkposition erreicht ist. Anschließend werden wiederum die Arretiereinrichtungen eingebracht, um die Bandaufhängeeinrichtung in der Schwenkposition zu arretieren.If the stationary transport device to be removed, the lock for the pivot position of the tape suspension device is first repealed and pivoted by means of a drive Bandaufhängeeinrichtung to the second horizontal pivot axis until the desired and preset pivot position is reached. Subsequently, in turn, the locking means are introduced to lock the Bandaufhängeeinrichtung in the pivot position.

Durch das Verschwenken der Bandaufhängeeinrichtung ist auch das untere Ende der zweiten Transporteinrichtung derart verschwenkt, dass sich dieses nicht mehr mit dem oberen Ende der ortsfesten Transporteinrichtung, die in dem Maschinenrahmen befestigt ist, überlappt. Daraufhin kann mit Hilfe z.B. einer Hubeinrichtung, insbesondere einem Flaschenzug, die zunächst am oberen Ende von dem Maschinenrahmen gelöste ortsfeste Transporteinrichtung herabgelassen werden.As a result of the pivoting of the band suspension device, the lower end of the second transport device is pivoted in such a way that it no longer overlaps the upper end of the stationary transport device which is fastened in the machine frame. Then, with the help of eg a lifting device, in particular a pulley, the first at the top of the fixed stationary transport device to the machine frame are lowered.

In einem dritten Schritt kann das untere Ende von dem Maschinenrahmen entkoppelt werden. Dann kann die Bandaufhängeeinrichtung wieder in ihre Arbeitsposition zurückverschwenkt und dort arretiert werden. Nachdem die ausgebaute erste Transporteinrichtung auf dem Boden frei aufliegt, können die erforderlichen Wartungsarbeiten, z.B. ein Bandaustausch, leicht zugänglich durchgeführt werden. Der Einbau der ersten Transporteinrichtung erfolgt in entgegengesetzter Reihenfolge.In a third step, the lower end of the machine frame can be decoupled. Then the Bandaufhängeeinrichtung can be pivoted back into its working position and locked there. After the removed first transport device rests freely on the ground, the required maintenance work, e.g. a band exchange, easily accessible. The installation of the first transport device takes place in the opposite order.

Im folgenden wird unter Bezugnahme auf die Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert.In the following an embodiment of the invention will be explained in more detail with reference to the drawings.

Es zeigen:Show it:

Fig. 1Fig. 1
eine Abbaumaschine, insbesondere einen Surface Miner, mit einer ersten und zweiten Transporteinrichtung in der arretieren Arbeitsposition,a mining machine, in particular a surface miner, with a first and second transport device in the locked working position,
Fig. 2Fig. 2
die Bandaufhängeeinrichtung in der arretierten Schwenkposition,the Bandaufhängeeinrichtung in the locked pivot position,
Fig. 3Fig. 3
das Demontieren der ortsfesten Transporteinrichtung, und das Wegfahren der Abbaumaschine,dismantling the stationary transport device, and driving away the mining machine,
Fig. 4Fig. 4
das Zurückschwenken der Bandaufhängeeinrichtung,pivoting back the tape hanger,
Fig. 5Fig. 5
die Befestigung der ersten Transporteinrichtung am Maschinenrahmen, undthe attachment of the first transport device on the machine frame, and
Fig. 6Fig. 6
die erste Transporteinrichtung in der Entnahmeposition.the first transport device in the removal position.

Fig. 1 zeigt eine Abbaumaschine 1, nämlich einen Surface Miner zum Abarbeiten von Abbaumaterial beispielsweise Gestein, Kalkstein oder Kohle u. dgl. Fig. 1 shows a mining machine 1, namely a surface miner for working off mining material such as rock, limestone or coal u. like.

Die Abbaumaschine 1 weist einen Maschinenrahmen 2 auf, in dem eine Schneidwalze 4 gelagert ist, mit der das Abbaumaterial aus dem Boden 3 abgefräst wird. Die in Fig. 1 gezeigte Schneidwalze 4 wird hierzu auf den Boden 3 abgesenkt und auf eine voreingestellte Frästiefe gebracht. Die Schneidwalze 4 wirft aufgrund ihrer Rotation das Abbaumaterial auf eine erste ortsfest, aber ausbaubar in dem Maschinenrahmen 2 gehaltene erste Transporteinrichtung 6, die von der Schneidwalze 4 ausgehend sich schräg nach oben in dem Maschinenrahmen 2 erstreckt. Die erste Transporteinrichtung 6 hat ein endlos umlaufendes Transportband 7, das das Abbaumaterial am oberen hinteren Ende 22 der ersten Transporteinrichtung 6 auf eine Übernahmestelle 18 einer zweiten Transporteinrichtung 12 abwirft. Die erste Transporteinrichtung 6 ist an ihrem unteren vorderen Ende in einen Bandschuh 9 eingehängt und an ihrem oberen Ende 22 lösbar am Maschinenrahmen 2 befestigt.The mining machine 1 has a machine frame 2, in which a cutting roller 4 is mounted, with which the decomposition material is milled from the bottom 3. In the Fig. 1 shown cutting roller 4 is lowered for this purpose on the floor 3 and brought to a preset milling depth. The cutting roller 4, due to its rotation, raises the excavation material to a first stationary, but removable, first machine 6 supported in the machine frame 2 and extending obliquely upward from the cutting drum 4 in the machine frame 2. The first transport device 6 has an endlessly circulating conveyor belt 7, which discharges the decomposition material at the upper rear end 22 of the first transport device 6 onto a transfer point 18 of a second transport device 12. The first transport device 6 is suspended at its lower front end in a belt shoe 9 and at its upper end 22 releasably secured to the machine frame 2.

Die zweite Transporteinrichtung 12 weist ebenfalls ein endlos umlaufendes Transportband 50 auf, das das Abbaumaterial von der Übernahmestelle 18 im unteren Bereich der zweiten Transporteinrichtung 12 zu einer Abwurfstelle 20 transportiert, an der das Abbaumaterial auf ein Fahrzeug abgeladen werden kann oder auch seitlich auf den Boden 3 abgeworfen werden kann.The second transport device 12 also has an endlessly circulating conveyor belt 50, which transports the removal material from the transfer point 18 in the lower region of the second transport device 12 to a discharge point 20 at which the removal material can be unloaded onto a vehicle or laterally onto the ground 3 can be dropped.

Die zweite Transporteinrichtung 12 wird von einer Bandaufhängeeinrichtung 10 getragen, die schwenkbar an dem Maschinenrahmen 2 befestigt ist. Die Bandaufhängeeinrichtung 10 besteht beispielsweise aus einem Portal 13, das die zweite Transporteinrichtung 12 zwischen Streben 11 aufnimmt. Die parallelen, vorzugsweise sich vertikal erstreckenden Streben 11 des Portals 13 sind an ihrem unteren Ende nach vorne in Richtung auf den Maschinenrahmen 2 abgewinkelt und nehmen an ihrem dem unteren Ende 14 der zweiten Transporteinrichtung zugewandten Ende eine horizontale Schwenkachse 24 auf, um die die zweite Transporteinrichtung 12 schwenkbar in der Bandaufhängeeinrichtung 10 zu lagern. Mit Hilfe einer Stelleinrichtung 16 in Verbindung mit einem Seilzug 17, die an dem oberen Ende des Portals schwenkbar gelagert sind, kann die zweite Transporteinrichtung 12 hinsichtlich ihres Steigungswinkels verändert werden und damit die Höhe der Abwurfstelle 20 bestimmt werden. Hierzu greift der Seilzug 17 vorzugsweise im oberen Drittel der zweiten Transporteinrichtung 12 an.The second transport device 12 is supported by a belt hanger 10 which is pivotally attached to the machine frame 2. The band suspension device 10 consists for example of a portal 13, which receives the second transport device 12 between struts 11. The parallel, preferably vertically extending struts 11 of the portal 13 are angled at its lower end towards the front of the machine frame 2 and take at its the lower end 14 of the second conveyor end facing a horizontal pivot axis 24 to the second transport means 12 pivotally mounted in the band suspension device 10. With the aid of an adjusting device 16 in conjunction with a cable 17, which are pivotally mounted at the upper end of the portal, the second conveyor 12 can be changed in terms of their pitch angle and thus the height of the discharge point 20 can be determined. For this purpose, the cable pull 17 preferably engages in the upper third of the second transport device 12.

Die Bandaufhängeeinrichtung 10 ist um eine zweite horizontale Schwenkachse 28 verschwenkbar, die einerseits in den vertikalen Streben 11 und andererseits an einem Element 25 des Maschinenrahmens 2 gelagert ist. Das Element 25 des Maschinenrahmens 2 weist zwei im wesentlichen dreieckförmige Platten 26 auf, die an ihrem unteren Ende Löcher 27 und 29 für das Durchstecken von Arretierbolzen aufweist. Die Löcher 27 und 29 sind winkelmäßig um einen gewünschten Schwenkwinkel für die Bandaufhängeeinrichtung 10 beabstandet. Dieser Schwenkwinkel kann beispielsweise 30° betragen. In der in Fig. 1 gezeigten Arbeitsstellung sind Arretierbolzen in die Löcher 27 gesteckt, so dass die Streben 11 der Bandaufhängeeinrichtung 10 vertikal arretiert sind. In der in Fig. 2 gezeigten Schwenkposition der Bandaufhängeeinrichtung 10 befinden sich die Arretierbolzen in den Löchern 29, und zwar in beiden zueinander parallel verlaufenden Streben 11 beiderseitig der zweiten Transporteinrichtung 12. Dadurch wird die Bandaufhängeeinrichtung 10 in der in Fig. 2 ersichtlichen Schwenkposition arretiert.The tape suspension device 10 is pivotable about a second horizontal pivot axis 28, which is mounted on the one hand in the vertical struts 11 and on the other hand on an element 25 of the machine frame 2. The element 25 of the machine frame 2 has two substantially triangular plates 26, which has at its lower end holes 27 and 29 for the insertion of locking pins. The holes 27 and 29 are angularly spaced by a desired pivot angle for the tape hanger 10. This swivel angle can be for example 30 °. In the in Fig. 1 shown working position locking pins are inserted into the holes 27, so that the struts 11 of the band suspension device 10 are locked vertically. In the in Fig. 2 shown pivot position of the Bandaufhängeeinrichtung 10 are the locking pins in the holes 29, in both mutually parallel struts 11 on both sides of the second transport device 12. Thus, the Bandaufhängeeinrichtung 10 in the in Fig. 2 apparent pivot position locked.

Zum Verschwenken der Bandaufhängeeinrichtung 10 wird eine Stelleinrichtung 36 in Verbindung mit einem Zugseil 38 verwendet, das mit vertikalem Abstand von der Schwenkachse 28 am oberen Ende der Streben 11 angreift, und zwar vorzugsweise an beiden Streben 11 des Portals 13.For pivoting the Bandaufhängeeinrichtung 10, an adjusting device 36 is used in conjunction with a pull cable 38 which engages at a vertical distance from the pivot axis 28 at the upper end of the struts 11, preferably on both struts 11 of the portal thirteenth

Die Stelleinrichtung 36 kann direkt mit dem Maschinenrahmen 2 gekoppelt sein, oder wie in den Zeichnungen gezeigt, an einem Drehkranz 30 befestigt sein, der um eine vertikale Achse 8 relativ zum Maschinenrahmen 2 um beispielsweise ± 90° schwenkbar ist und damit über die Bandaufhängeeinrichtung 10 ein Verschwenken der zweiten Transporteinrichtung 12 zur Seite hin ermöglicht.The adjusting device 36 may be coupled directly to the machine frame 2, or as shown in the drawings, be attached to a turntable 30 which is pivotable about a vertical axis 8 relative to the machine frame 2 by, for example, ± 90 ° and thus on the Bandaufhängeeinrichtung 10 a Pivoting the second conveyor 12 allows to the side.

An dem Drehkranz 30 kann auf der der Bandaufhängeeinrichtung 10 gegenüberliegenden Seite ein verfahrbares Gegengewicht 34 angeordnet sein, das zur Verringerung von auf dem Maschinenrahmen 2 wirkenden Momenten in unterschiedliche Stellungen verfahren werden kann. Das Gegengewicht 34 kann demzufolge entsprechend der Belastung der zweiten Transporteinrichtung 12 mit Abbaumaterial und in Abhängigkeit von der Schwenkstellung der zweiten Transporteinrichtung 12 sowohl seitlich als auch in Höhenrichtung, unterschiedlich weit herausgefahren werden. Hierzu kann die bereits erwähnte Stelleinrichtung 36 verwendet werden, die das Gegengewicht 34 mit Hilfe eines Gelenkgetriebes 44 auf einem Schlitten 39 unterschiedlich weit nach außen verfahren kann.On the turntable 30, a movable counterweight 34 can be arranged on the side opposite the tape suspension device 10, which can be moved to reduce acting on the machine frame 2 moments in different positions. Accordingly, the counterweight 34 can be moved out to different extents in accordance with the load of the second transport device 12 with decomposition material and depending on the pivot position of the second transport device 12 both laterally and vertically. For this purpose, the already mentioned adjusting device 36 may be used be moved the counterweight 34 by means of a linkage 44 on a carriage 39 different far outward.

In vorteilhafter Weise kann die Stelleinrichtung 36, wie bereits erläutert, auch zum Verschwenken der Bandaufhängeeinrichtung 10 verwendet werden.Advantageously, the adjusting device 36, as already explained, are also used for pivoting the tape suspension device 10.

In der aus Fig. 2 ersichtlichen Position kann die erste Transporteinrichtung demontiert werden, indem zunächst das vordere Ende 22 der ersten Transporteinrichtung 6 von dem Maschinenrahmen 2 gelöst wird und die erste Transporteinrichtung, wie aus Fig. 3 ersichtlich, über eine Hubeinrichtung, z.B. einem Flaschenzug abgesenkt werden kann. Fig. 3 zeigt die erste Transporteinrichtung 6 in der abgesenkten Position, bei der die Bandaufhängeeinrichtung 10 wieder zurück in die Arbeitsposition verschwenkt worden ist. Es versteht sich, dass die Bandaufhängeeinrichtung 10 in der Schwenkposition verbleiben kann.In the out Fig. 2 apparent position, the first transport device can be dismantled by first the front end 22 of the first transport device 6 is released from the machine frame 2 and the first transport device, as shown in FIG Fig. 3 can be lowered via a lifting device, such as a pulley can be lowered. Fig. 3 shows the first transport device 6 in the lowered position, in which the tape hanger 10 has been pivoted back into the working position. It is understood that the tape suspension device 10 may remain in the pivot position.

Nach dem Ablassen des vorderen Endes der ersten Transporteinrichtung 6 kann die Befestigung der ersten Transporteinrichtung 6 an dem Bandschuh 9 gelöst werden und dadurch die erste Transporteinrichtung 6 vollständig von dem Maschinenrahmen 2 gelöst werden.After the front end of the first transport device 6 has been lowered, the attachment of the first transport device 6 to the belt shoe 9 can be released, thereby releasing the first transport device 6 completely from the machine frame 2.

Anschließend kann die Abbaumaschine 1 in Vorwärtsrichtung weggefahren werden, wodurch die erste Transporteinrichtung 6 vollkommen freiliegt, so dass Wartungsarbeiten in einfacher Weise durchgeführt werden können. Die Fign. 5 und 6 zeigen die Aufnahmeeinrichtung 46 für das untere vordere Ende der ersten Transporteinrichtung 6 an dem Bandschuh 9.Subsequently, the mining machine 1 can be moved away in the forward direction, whereby the first transport device 6 is completely exposed, so that maintenance can be carried out in a simple manner. The FIGS. 5 and 6 show the receiving device 46 for the lower front end of the first transport device 6 on the belt shoe. 9

Fig. 5 zeigte eine Seitenansicht einer Befestigungsplatte 48, mit der die erste Transporteinrichtung 6 beidseitig an dem Bandschuh 9 befestigt werden kann. Seitlich von der ersten Transporteinrichtung 6 abstehende Lagerbolzen 55 können nach dem Entfernen der beiderseitigen Befestigungsplatten 48 aus der Halterung 46 z.B. dadurch herausgezogen werden, dass die Abbaumaschine 1 vorwärtsbewegt wird, wobei die seitlich überstehenden Lagerbolzen 55 auf den beiderseitigen Schrägen 56 am Bandschuh heruntergleiten können und die erste Transporteinrichtung 6 auf den Boden 3 absetzen können. Fig. 5 showed a side view of a mounting plate 48, with which the first transport device 6 can be attached to both sides of the belt shoe 9. Laterally projecting from the first transport means 6 bearing pin 55 can be pulled out after removal of the mutual mounting plates 48 from the holder 46, for example, that the mining machine 1 is moved forward, the laterally projecting bearing pin 55 can slide on the mutual slopes 56 on the belt shoe and the first transport device 6 can settle on the floor 3.

Das Transportband 50 der zweiten Transporteinrichtung 12 kann mit Hilfe einer aus einem Fettspanner 58 bestehenden Bandspanneinrichtung gespannt gehalten werden, wobei der Fettspanner auf die linear bewegliche Achse 60 der oberen Antriebsrolle 52 für das Transportband 50 einwirkt.The conveyor belt 50 of the second transport device 12 can be kept taut by means of a belt tensioning device consisting of a grease tensioner 58, wherein the grease tensioner acts on the linearly movable axis 60 of the upper drive roller 52 for the transport belt 50.

Das endlos umlaufende Transportband 50 wird über die obere Antriebsrolle 52 angetrieben und über die untere Umlenkrolle 54 umgelenkt. Der Fettspanner 58 weist eine Fettzuführeinrichtung 62 auf, die sich längs der zweiten Transporteinrichtung 12 nach unten erstreckt und in einem Fettzuführanschluss 64 mündet, der vom Boden 3 aus zugänglich ist.The endless circulating conveyor belt 50 is driven via the upper drive roller 52 and deflected by the lower guide roller 54. The fat tensioner 58 has a grease feed device 62, which extends downwards along the second transport device 12 and opens into a grease feed port 64, which is accessible from the bottom 3.

Claims (13)

  1. Mining machine (1) for the processing of a ground (3), in particular surface miner, with
    - a machine frame (2),
    - a cutting drum (4) mounted in the machine frame (2),
    - a first transport device (6), which accepts mining material from the cutting drum (4),
    - a second transport device (12), which accepts the mining material from the first transport device (6) at a point of acceptance (18) that is arranged at the lower end (14) of the second transport device (12) and is located below the upper end (22) of the first transport device (6),
    - a conveyor suspension device (10) for the second transport device (12), which is mounted at the machine frame (2) to slew about a vertical slewing axis (8),
    - where the second transport device (12) is pivotable about a first horizontal pivoting axis (24) that runs transverse to the longitudinal direction of the second transport device (12) and is mounted in the conveyor suspension device (10), and
    - where the vertical slewing axis (8) of the conveyor suspension device (10) runs essentially centrally through the point of acceptance (18),
    characterized in that
    the conveyor suspension device (10), together with the second transport device (12), is pivotable, relative to the machine frame (2), about a second horizontal pivoting axis (28).
  2. Mining machine' in accordance with claim 1, characterized in that the second horizontal pivoting axis (28) shows, at least during pivoting of the conveyor suspension device (10), a vertical distance from the ground (3) that is larger than the direct distance of the pivoting axis (28) to the lower end (14) of the second transport device (12).
  3. Mining machine in accordance with claim 1 or 2, characterized in that the conveyor suspension device (10) is capable of being locked in a working position and in a pivoting position for the installation and removal of the first transport device (6).
  4. Mining machine in accordance with claim 1 to 3, characterized in that a slewing ring (30) mounted on the machine frame (2), which is slewable about the vertical slewing axis (8), carries the conveyor suspension device (10).
  5. Mining machine in accordance with claim 4, characterized in that the slewing ring (30) carries a counterweight (34) on the opposite side of the conveyor suspension device (10).
  6. Mining machine in accordance with one of the claims 1 to 5, characterized in that a rotational drive pivots the conveyor suspension device (10) relative to the machine frame (2) about the second horizontal pivoting axis (28).
  7. Mining machine in accordance with claim 4 or 5, characterized in that a positioning mechanism (36) fastened to the slewing ring (30) or to the machine frame (2) engages with the conveyor suspension device (10) at a vertical distance from the second horizontal pivoting axis (28) in order to pivot the conveyor suspension device (10) about the second horizontal pivoting axis (28).
  8. Mining machine in accordance with claim 7, characterized in that the positioning mechanism (36) of a moving mechanism (40) for the counterweight (34) pivots the conveyor suspension unit (10).
  9. Mining machine in accordance with one of the claims 1 to 8, characterized in that the second transport device (12) comprises a continuously revolving transport belt (50) which, at the ends (14, 15) on both sides of the second transport device (12), is guided over a drive roller (52) and a return roller (54), and that the upper drive roller (52) is capable of being moved via a belt tensioning device consisting of a grease tensioner (58) for the purpose of tensioning the transport belt (50).
  10. Mining machine in accordance with claim 9, characterized in that a grease feeding device (62), which extends along the second transport device (12), is provided for the grease tensioner (58) and comprises, at the lower end (15) of the second transport device (12) or at the machine frame (2), a grease feeding connection (64).
  11. Method for the removal and installation of a transport device (6) in a mining machine (1) for the processing of a ground (3), in particular a surface miner, in which
    - mining material processed by a cutting drum (4) is discharged onto a first transport device (6) permanently installed in the machine frame (2),
    - the mining material is discharged, at the upper end (22) of the first transport device (6), onto the lower end (14) of the second, slewable transport device (12) at a point of acceptance (18),
    - the second transport device (12) is carried by a conveyor suspension device (10) which is mounted to slew about a vertical slewing axis (8) and can be slewed laterally together with the same, and
    - the second transport device (12) is additionally pivotable, relative to the conveyor suspension device (10), about a first horizontal pivoting axis (24), where
    - the vertical slewing axis (8) runs through the point of acceptance (18),
    characterized in that
    the conveyor suspension device (10), together with the second transport device (12), is pivoted, relative to the machine frame (2), about a second horizontal pivoting axis (28) which is offset vertically upwards relative to the first pivoting axis (24) until the free upper end of the first transport device (6) no longer overlaps with the lower end of the second transport device (12), and the first transport device (6) is lowered to the ground (3) after pivoting of the conveyor suspension device (10) and after detachment from the machine frame (2).
  12. Method in accordance with claim 11, characterized in that the conveyor suspension device (10) is pivoted about a second horizontal pivoting axis (28) which, at least during pivoting, shows a distance from the ground (3) that is larger than the direct distance between the horizontal pivoting axis (28) and the lower end (14) of the second transport device (12).
  13. Method in accordance with claim 11 or 12, characterized in that the conveyor suspension device (10) is locked in the working position or in the pivoting position.
EP20100157057 2009-03-20 2010-03-19 Excavation machine, in particular surface miner and method for fitting and detaching a transport device for a excavation machine Active EP2236745B1 (en)

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EP2236745A3 (en) 2013-10-02
DE102009061034B4 (en) 2014-07-17
EP2236745A2 (en) 2010-10-06
DE102009013709B4 (en) 2011-04-28
DE102009061034A1 (en) 2011-02-24
EP2835495B1 (en) 2017-08-02
DE102009013709A1 (en) 2011-01-05
EP2835495A1 (en) 2015-02-11

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