EP0224084B1 - Adjustable charging device - Google Patents

Adjustable charging device Download PDF

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Publication number
EP0224084B1
EP0224084B1 EP86115327A EP86115327A EP0224084B1 EP 0224084 B1 EP0224084 B1 EP 0224084B1 EP 86115327 A EP86115327 A EP 86115327A EP 86115327 A EP86115327 A EP 86115327A EP 0224084 B1 EP0224084 B1 EP 0224084B1
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EP
European Patent Office
Prior art keywords
loading apparatus
loading
guide element
components
extraction device
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EP86115327A
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German (de)
French (fr)
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EP0224084A1 (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 AT86115327T priority Critical patent/ATE72479T1/en
Publication of EP0224084A1 publication Critical patent/EP0224084A1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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

Definitions

  • the invention relates to a loading device for the extraction device of a tunneling or extraction machine, wherein the loading device is designed as a screw conveyor and interacts with at least one guide element for the material to be removed that is arranged outside the drive area of the extraction device, and the guide element of the loading device can be forcibly tracked.
  • the loading tools are designed as loading screws which can be swiveled arm-like on both sides of the conveying device with a supporting frame.
  • the loading screws are at least partially equipped with crushing tools on their screw web, the chutes serving as crushing abutments in this area.
  • the loading device thus simultaneously acts as an extraction organ.
  • 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. 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 elements are connected upstream of the loading devices, so that the loading devices themselves only have to pick up the cut material falling to the ground and possibly have to shred them.
  • the invention is based on the generic part of the main patent claim, the task, the disadvantages of St.d.T. to eliminate and create a continuous flow of funding.
  • a variant of the invention shows that the components are approximately plate-shaped.
  • the plates are arranged to be longitudinally movable below the guide element and are preferably mounted to be longitudinally movable at least in their outer end regions by rollers or sliding guides.
  • the guide element is advanced. This device can also be used in underground construction, since it can only detect small removal heights.
  • the components forming the guide element as shell segments with a defined radius of curvature, which overlap one another in the circumferential direction and are at least partially movable in the circumferential direction.
  • an opening is provided through which the material is fed to a belt or plate conveyor for further removal.
  • the guide element has a rounded cross section and serves in the bottom receiving area of the Extraction element as a receiving element for the shell segments.
  • Such a device is universally suitable both for direct propulsion in the longitudinal direction and for cutting off by means of lifting and swiveling movements of the extraction member.
  • At least the shell segment facing the working area of the extraction element is rotatably supported at a defined radial distance about the horizontal axis of the extraction element or the loading device, connecting struts extending between the inner peripheral surface of the shell segments and the associated bearings.
  • the suspension or mounting of the components interacting with the guide element is preferably carried out in the area of the supporting structure of a chassis or the like.
  • the shell segments in their end regions (seen in the circumferential direction) with radial shoulders, which form stop surfaces for the retraction or extension of the shell segments.
  • the radial lugs engage in a claw-like manner and are at least partially arranged in corresponding guide grooves.
  • a telescopic extension or retraction in the circumferential direction can thus be ensured with a small space requirement. This arrangement ensures that irrespective of the removal height, the material obtained can always be conveyed away in the direction of the opening without significant material loss occurring in between.
  • the radial gap between the cup-shaped guide elements and the extraction member may be constant.
  • the material is usually broken during the loading process. It could be advantageous here to guide the shell segment initially located in the working area in such a way that an approximately funnel-shaped receiving area is formed.
  • the longitudinal or the rotary movement of the channel-shaped guide elements is preferably carried out by means of thrust elements, such as hydraulic cylinders, spindles, racks or the like.
  • the adjustment movement of the guide elements can be realized by contact switches or by optical switching devices. As a result, the stroke is set as a function of the dumping depth or the adaptation to the irregularly running work surface is achieved.
  • the control of the guide elements must be adapted to the application in each case.
  • the control can both inevitably, i.e. take place simultaneously with the height adjustment or also lead the height adjustment in order to ensure in any case that the material loss in the loading area is as small as possible.
  • FIG. 1 shows a mining element 1, which consists of a screw conveyor, not shown, which is provided with crushing elements in the outer peripheral region.
  • a loading process takes place at the same time along the slope direction of the auger.
  • at least one channel-shaped guide element is provided outside the working area of the extraction member 1.
  • this device which corresponds approximately to DE-PS 33 23 395, is only able to take up material cut off from a separate extraction organ in the bottom region 3 and, if necessary, to shred it.
  • the screw were designed as a lifting and lowering extraction device 1 at the same time, the material obtained would simply fall to the ground and would then have to be collected in subsequent steps. However, this reduces the overall efficiency.
  • the area the channel-shaped guide element 2 is modified so that it is able to follow the movements of the extraction member 1.
  • FIG. 1 this is done in such a way that at least one plate 4 which is longitudinally movable in the direction of advance is provided below the guide element 2.
  • the plate 4 or the plates are e.g. longitudinally guided by rollers 5,6.
  • Figure 1 shows the initial state.
  • the extraction member 1 is located on the floor 3 and the plate 4 or the plates are flush with the guide element 2 finally 7.
  • the longitudinal movement of the plates 4 takes place by means of hydraulic cylinders 8.
  • the longitudinal guides 5, 6 are fastened 9, 10 both in the lower region 11 of the guide element 2 and on the support structure 12 of a vehicle (not shown further).
  • the number 13 represents a through-opening through which the extracted and loaded material is fed onto a discharge conveyor 14.
  • FIG. 2 shows an alternative embodiment of the inventive concept.
  • the same components are provided with the same reference symbols.
  • the extraction member 1 and the guide element 2 are shown again, which serves here, among other things, as a receiving part of further shell segments 15, 16.
  • a through opening 13 is provided, which serves for the removal of the material obtained onto a take-off conveyor 14.
  • the guide element 2 is rigid, while the shell segments 15, 16 can be pivoted about the horizontal axis 17 of the extraction member 1.
  • Struts 20, 21 are arranged between bearings 18 and the inner circumferential surface 19 of the shell segments 15, 16, by means of which the rotary movement can be generated.
  • the attachment 22 of the bearing 18 is made directly on the support structure 23 of a chassis, not shown.
  • the rotary movement takes place via hydraulic cylinders 24 which engage the strut 21.
  • the curvature of the shell segments 15, 16 and of the guide element 2 corresponds approximately to the curvature of the extraction member 1.
  • the hydraulic cylinder 24 By actuating the hydraulic cylinder 24, the shell segments 15, 16 are retracted or extended.
  • the end regions of the shell segments 15, 16 are provided with cams 25, 26, 27, 28, at least the cams 26 engaging in corresponding guide grooves 29.
  • FIG. 3 corresponds to FIG. 1 with the difference that the plates 4 are extended in the direction of advance as soon as the extraction element 1 lifts off the ground and carries out a cut in the horizontal or vertical direction.
  • FIG. 4 can be seen, which corresponds to FIG. 2. It can also be seen here that the shell segments 15, 16 can be advanced in the circumferential direction depending on the working height of the extraction member 1.
  • the adjustment device is actuated by contact switches or the like.
  • the stroke H is set as a function of the depth of cut T or the adaptation to the irregularly running work surface is achieved.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Screw Conveyors (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
  • Harvesting Machines For Root Crops (AREA)
  • Earth Drilling (AREA)
  • Chutes (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

A charging device for an extracting member is proposed, in particular a screw conveyor (1), which interacts with a guide element which, as an auxiliary means, transports the extracted material to a passage opening and transfers it there to a discharge conveyor. So that a continuous conveying flow can be created, the lower area of the guide element (4) is designed in such a way that it can follow lifting or swivelling movements of the extracting member or the charging device (1). <IMAGE>

Description

Die Erfindung betrifft eine Ladevorrichtung für das Gewinnungsorgan einer Vortriebs- oder Gewinnungsmaschine, wobei die Ladevorrichtung als Förderschnecke ausgebildet ist und mit mindestens einem außerhalb des Antriebsbereiches des Gewinnungsorganes angeordneten Führungselement für das abzufördernde Material zusammenwirkt und wobei das Führungselement der Ladevorrichtung zwangsweise nachführbar ist.The invention relates to a loading device for the extraction device of a tunneling or extraction machine, wherein the loading device is designed as a screw conveyor and interacts with at least one guide element for the material to be removed that is arranged outside the drive area of the extraction device, and the guide element of the loading device can be forcibly tracked.

Durch die DE-PS 33 23 395 ist eine Vortriebsmaschine für Bergbautrecken und Tunnelstrecken vorbekannt. Die Ladewerkzeuge sind als Ladeschnecken ausgebildet, die mit Tragrahmen beiderseits der Fördervorrichtung armartig schwenkbar sind. In den Tragarmen sind im rückwärtigen Bereich der Ladeschnecken und zu diesen parallel Laderinnen bildende Schurren angeordnet. Die Ladeschnecken sind auf ihrem Schneckensteg zumindest bereichsweise mit Brechwerkzeugen besetzt, wobei die Schurren in diesem Bereich als Brechwiderlager dienen. Somit wirkt die Ladevorrichtung gleichzeitig als Gewinnungsorgan. Die Tragrahmen sind unabhängig voneinander um ihre vertikalen Achsen schwenkbar, um so eine gewisse Kurvengängigkeit der gesamten Maschine zu gewährleisten. Vortriebsmaschinen der angesprochenen Gattung eignen sich gut im Untertagebau, wo lediglich geringe Abtragshöhen gegeben sind. Vielfach sind den Ladevorrichtungen die eigentlichen Gewinnungsorgane vorgeschaltet, so daß die Ladevorrichtungen selber nur das zu Boden fallende abgehauene Material aufnehmen und ggf. noch zerkleinern müssen.DE-PS 33 23 395 a tunneling machine for mining routes and tunnel routes is already known. The loading tools are designed as loading screws 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 loading augers and chutes forming loaders parallel to them are arranged. The loading screws are at least partially equipped with crushing tools on their screw web, the chutes serving as crushing abutments in this area. The loading device thus simultaneously acts as an extraction organ. 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. 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 elements are connected upstream of the loading devices, so that the loading devices themselves only have to pick up the cut material falling to the ground and possibly have to shred them.

Beim Einsatz derartiger Gewinnungsorgane im Tagebau sind jedoch Arbeitsflächen mit Abtragshöhen in der Größe des zwei- bis dreifachen Schneckendurchmessers nichts ungewöhnliches. Das dabei im Hochschnitt arbeitende Gewinnungsorgan löst das Material aus der Wand, läßt es auf den Erdboden fallen, wobei das Material - wie bereits oben angesprochen - von Ladevorrichtungen aufgenommen wird. Bei diesem Verfahren ist eine zeitlich begrenzte Zwischenlagerung vor dem Ladeschild unumgänglich. Dadurch wird der Gesamtwirkungsgrad verschlechtert und zusätzliche Verluste infolge seitlich abfließenden Materials unvermeidbar.When using such extraction organs in open-cast mining, however, work surfaces with removal heights in the size of two to three times the screw diameter are not uncommon. The extraction organ, which works in a high cut, releases the material from the wall and lets it fall to the ground, the material being - as already mentioned above - taken up by loading devices. With this method, temporary storage in front of the loading plate is essential. As a result, the overall efficiency is deteriorated and additional losses due to material flowing off laterally are unavoidable.

Der Erfindung liegt, ausgehend vom gattungsbildenden Teil des Hauptpatentanspruches, die Aufgabe zugrunde, die Nachteile des St.d.T. zu beseitigen und einen kontinuierlichen Förderfluß zu schaffen.The invention is based on the generic part of the main patent claim, the task, the disadvantages of St.d.T. to eliminate and create a continuous flow of funding.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Gewinnungsorgan gleichzeitig die Ladevorrichtung bildet und daß unterhalb des Führungselementes Ladelippen bildende Bauteile vorgesehen sind, die, je weiter unter das Gewinnungsorgan führbar sind, je höher dieses vom Boden abgehoben wird.This object is achieved in that the extraction member simultaneously forms the loading device and that below the guide element there are loading lip-forming components which, the further below the extraction member, the higher it is lifted off the ground.

Durch diese Maßnahme wird erreicht, daß in jeder Höhenstellung des Gewinnungsorganes eine kontinuierliche Abförderung des gewonnenen Materials sichergestellt ist. Der Umweg über das Zwischenlager "Erdboden" wird somit umgangen, wobei der Gesamtwirkungsgrad in nicht unerheblicher Weise gesteigert werden kann. Die Nachführung erfolgt hierbei zwangsläufig, d.h. simultan zur Hub- und Schwenkbewegung.This measure ensures that a continuous removal of the material obtained is ensured at every height of the extraction organ. The detour via the "Erdboden" interim storage facility is thus avoided, the overall efficiency being able to be increased in a not inconsiderable manner. The tracking is inevitable, i.e. simultaneous to the lifting and swiveling movement.

Eine Variante der Erfindung zeigt auf, daß die Bauteile etwa plattenförmig ausgebildet sind. Die Platten sind unterhalb des Führungselementes längsbeweglich angeordnet und sind vorzugsweise zumindest in ihren äußeren Endbereichen durch Rollen oder Gleitführungen längsbeweglich gelagert. In Abhängigkeit von dem sich kontinuierlich auf- und abbewegenden Gewinnungsorgan erfolgt eine Zustellbewegung des Führungselementes. Diese Vorrichtung ist auch im Untertagebau einsetzbar, da hiermit nur geringe Abtragshöhen erfaßt werden können.A variant of the invention shows that the components are approximately plate-shaped. The plates are arranged to be longitudinally movable below the guide element and are preferably mounted to be longitudinally movable at least in their outer end regions by rollers or sliding guides. Depending on the extraction organ moving up and down continuously, the guide element is advanced. This device can also be used in underground construction, since it can only detect small removal heights.

Alternativ dazu wird vorgeschlagen, die das Führungselement bildenden Bauteile als Schalensegmente mit definiertem Krümmungsradius auszubilden, die einander in Umfangsrichtung überlappen und zumindest teilweise in Umfangsrichtung beweglich ausgebildet sind.As an alternative to this, it is proposed to design the components forming the guide element as shell segments with a defined radius of curvature, which overlap one another in the circumferential direction and are at least partially movable in the circumferential direction.

Oberhalb des Führungselementes ist analog zum St.d.T. eine Öffnung vorgesehen, durch die das Material einem Band- oder Plattenförderer zum weiteren Abtransport zugeführt wird.Analogous to the St.d.T. an opening is provided through which the material is fed to a belt or plate conveyor for further removal.

Einem weiteren Gedanken der Erfindung gemäß weist das Führungselement einen gerundeten Querschnitt auf und dient im bodenseitigen Aufnahmebereich des Gewinnungsorganes als Aufnahmeelement für die Schalensegmente. Eine solche Vorrichtung ist universell sowohl für den direkten Vortrieb in Längsrichtung geeignet als auch für das Abhauen mittels Hub- und Schwenkbewegungen des Gewinnungsorganes einsetzbar.According to a further concept of the invention, the guide element has a rounded cross section and serves in the bottom receiving area of the Extraction element as a receiving element for the shell segments. Such a device is universally suitable both for direct propulsion in the longitudinal direction and for cutting off by means of lifting and swiveling movements of the extraction member.

Zumindest das dem Arbeitsbereich des Gewinnungsorganes zugewandte Schalensegment ist mit definiertem radialem Abstand um die Horizontalachse des Gewinnungsorganes bzw. der Ladevorrichtung drehbar gelagert, wobei sich zwischen der inneren Umfangsfläche der Schalensegmente und den zugehörigen Lagern Verbindungsstreben erstrecken. Die Aufhängung bzw. Lagerung der mit dem Führungselement zusammenwirkenden Bauteile erfolgt vorzugsweise im Bereich der Tragkonstruktion eines Fahrwerkes oder dgl.At least the shell segment facing the working area of the extraction element is rotatably supported at a defined radial distance about the horizontal axis of the extraction element or the loading device, connecting struts extending between the inner peripheral surface of the shell segments and the associated bearings. The suspension or mounting of the components interacting with the guide element is preferably carried out in the area of the supporting structure of a chassis or the like.

Es wird weiterhin vorgeschlagen, die Schalensegmente in ihren Endbereichen (in Umfangsrichtung gesehen) mit radialen Ansätzen zu versehen, die Anschlagflächen für das Ein- bzw. das Ausfahren der Schalensegmente bilden. Die Radialansätze greifen klauenartig ineinander und sind zumindest teilweise in entsprechenden Führungsnuten angeordnet. Somit kann ein in Umfangsrichtung teleskopartiges Aus- bzw. Einfahren bei geringem Platzbedarf gewährleistet sein. Durch diese Anordnung wird sichergestellt, daß unabhängig von der Abtragshöhe das gewonnene Material immer gleich in Richtung der Öffnung abgefördert werden kann, ohne daß zwischendurch ein wesentlicher Materialverlust eintritt.It is further proposed to provide the shell segments in their end regions (seen in the circumferential direction) with radial shoulders, which form stop surfaces for the retraction or extension of the shell segments. The radial lugs engage in a claw-like manner and are at least partially arranged in corresponding guide grooves. A telescopic extension or retraction in the circumferential direction can thus be ensured with a small space requirement. This arrangement ensures that irrespective of the removal height, the material obtained can always be conveyed away in the direction of the opening without significant material loss occurring in between.

Je nach zu gewinnendem Material kann es sinnvoll sein, daß der radiale Spalt zwischen den schalenförmigen Führungselementen und dem Gewinnungsorgan gleichbleibend ausgebildet ist. Üblicherweise wird das Material während des Ladevorganges noch gebrochen. Hier könnte es von Vorteil sein, das dem Arbeitsbereich zunächst gelegene Schalensegment so zu führen, daß ein etwa trichterförmig sich verjüngender Aufnahmebereich gebildet wird. Die Längs- bzw. die Drehbewegung der rinnenförmigen Führungselemente erfolgt vorzugsweise mittels Schubelementen, wie z.B. Hydraulikzylindern, Spindeln, Zahnstangen oder dgl. In beiden bevorzugten Anwendungsfällen kann die Verstellbewegung der Führungselemente durch Kontaktschalter oder durch optische Schalteinrichtungen realisiert werden. Dadurch wird in Abhängigkeit von der Schüttiefe der Hub eingestellt bzw. die Anpassung an die unregelmäßig verlaufende Arbeitsfläche erreicht.Depending on the material to be extracted, it may be useful for the radial gap between the cup-shaped guide elements and the extraction member to be constant. The material is usually broken during the loading process. It could be advantageous here to guide the shell segment initially located in the working area in such a way that an approximately funnel-shaped receiving area is formed. The longitudinal or the rotary movement of the channel-shaped guide elements is preferably carried out by means of thrust elements, such as hydraulic cylinders, spindles, racks or the like. In both preferred applications, the adjustment movement of the guide elements can be realized by contact switches or by optical switching devices. As a result, the stroke is set as a function of the dumping depth or the adaptation to the irregularly running work surface is achieved.

Die Steuerung der Führungselemente ist in jedem Fall dem Anwendungsfall anzupassen. Die Steuerung kann sowohl zwangsläufig, d.h. simultan zur Höhenverstellung erfolgen oder aber auch der Höhenverstellung voreilen, um so in jedem Fall sicherzustellen, daß der Materialverlust im Ladebereich so gering wie möglich ausfällt.The control of the guide elements must be adapted to the application in each case. The control can both inevitably, i.e. take place simultaneously with the height adjustment or also lead the height adjustment in order to ensure in any case that the material loss in the loading area is as small as possible.

Die Erfindung ist in der Zeichnung dargestellt und wird Im folgenden näher beschrieben. Es zeigen:

Figur 1
Gewinnungsorgan mit längsbeweglichem Führungselement in der Grundstellung
Figur 2
Gewinnungsorgan mit schalensegmentförmigen Führungselementen
Figur 3
Gewinnungsorgan in angehobener Stellung mit ausfahrendem längsbeweglichem Führungselement
Figur 4
Gewinnungsorgan in angehobener Stellung mit in Umfangsrichtung ausfahrenden Schalensegmenten.
The invention is illustrated in the drawing and is described in more detail below. Show it:
Figure 1
Extraction organ with longitudinally movable guide element in the basic position
Figure 2
Extraction organ with shell segment-shaped guide elements
Figure 3
Extraction element in the raised position with extending longitudinally movable guide element
Figure 4
Extraction member in the raised position with shell segments extending in the circumferential direction.

Figur 1 zeigt ein Gewinnungsorgan 1, das aus einer nicht weiter dargestellten Förderschnecke besteht, welche im äußeren Umfangsbereich mit Brechelementen versehen Ist. Bedingt durch die schneckenförmige Ausbildung des unterschlächtig arbeitenden Gewinnungsorganes 1 findet gleichzeitig entlang der Steigungsrichtung der Schnecke ein Ladevorgang (Transport) statt. Um ein Widerlager für den Ladevorgang zu bilden, ist mindestens ein rinnenförmig ausgebildetes Führungselement außerhalb des Arbeitsbereiches des Gewinnungsorganes 1 vorgesehen. Diese etwa der DE-PS 33 23 395 entsprechende Einrichtung ist jedoch nur dazu in der Lage, von einem separaten Gewinnungsorgan abgehauenes Material im Bodenbereich 3 aufzunehmen und ggf. noch zu zerkleinern. Würde die Schnecke gleichzeitig als heb- und senkbares Gewinnungsorgan 1 ausgebildet werden, so würde das gewonnene Material lediglich zu Boden fallen und müßte dann in Folgeschritten eingesammelt werden. Dies mindert jedoch den Gesamtwirkungsgrad. Um nun ein kontinuierliches Abfördern gewonnenen Materials - unabhängig von der Arbeitshöhe des Gewinnungsorganes 1 - sicherzustellen, wird vorgeschlagen, daß der Bereich des rinnenförmigen Führungselementes 2 so modifiziert wird, daß er in der Lage ist, den Bewegungen des Gewinnungsorganes 1 zu folgen.FIG. 1 shows a mining element 1, which consists of a screw conveyor, not shown, which is provided with crushing elements in the outer peripheral region. As a result of the helical design of the extraction member 1, which operates under the bottom, a loading process (transport) takes place at the same time along the slope direction of the auger. In order to form an abutment for the charging process, at least one channel-shaped guide element is provided outside the working area of the extraction member 1. However, this device, which corresponds approximately to DE-PS 33 23 395, is only able to take up material cut off from a separate extraction organ in the bottom region 3 and, if necessary, to shred it. If the screw were designed as a lifting and lowering extraction device 1 at the same time, the material obtained would simply fall to the ground and would then have to be collected in subsequent steps. However, this reduces the overall efficiency. In order to ensure a continuous removal of the material obtained - regardless of the working height of the extraction organ 1 - it is proposed that the area the channel-shaped guide element 2 is modified so that it is able to follow the movements of the extraction member 1.

Dies geschieht gemäß Figur 1 in der Weise, daß unterhalb des Führungselementes 2 mindestens eine in Vortriebsrichtung längsbewegliche Platte 4 vorgesehen ist. Die Platte 4 bzw. die Platten sind z.B. durch Rollen 5,6 längsgeführt. Figur 1 zeigt den Ausgangszustand. Das Gewinnungsorgan 1 befindet sich auf dem Boden 3 und die Platte 4 bzw. die Platten sind bündig mit dem Führungselement 2 abschließend 7 eingefahren. Die Längsbewegung der Platten 4 erfolgt durch Hydraulikzylinder 8. Die Befestigung 9,10 der Längsführungen 5,6 erfolgt sowohl im unteren Bereich 11 des Führungselementes 2 als auch an der Tragkonstruktion 12 eines nicht weiter dargestellten Fahrzeuges. Die Ziffer 13 stellt eine Durchgangsöffnung dar, durch welche das gewonnene und geladene Material auf einen Abzugsförderer 14 aufgegeben wird.According to FIG. 1, this is done in such a way that at least one plate 4 which is longitudinally movable in the direction of advance is provided below the guide element 2. The plate 4 or the plates are e.g. longitudinally guided by rollers 5,6. Figure 1 shows the initial state. The extraction member 1 is located on the floor 3 and the plate 4 or the plates are flush with the guide element 2 finally 7. The longitudinal movement of the plates 4 takes place by means of hydraulic cylinders 8. The longitudinal guides 5, 6 are fastened 9, 10 both in the lower region 11 of the guide element 2 and on the support structure 12 of a vehicle (not shown further). The number 13 represents a through-opening through which the extracted and loaded material is fed onto a discharge conveyor 14.

Figur 2 zeigt eine alternative Ausführungsform des Erfindungsgedankens. Gleiche Bauteile werden mit gleichen Bezugszeichen versehen. Dargestellt sind wieder das Gewinnungsorgan 1 sowie das Führungselement 2, welches hier unter anderem als Aufnahmeteil weiterer Schalensegmente 15,16 dient. Auch hier ist eine Durchgangsöffnung 13 vorgesehen, die zum Abtransport des gewonnenen Materials auf einen Abzugsförderer 14 dient. Das Führungselement 2 ist starr ausgebildet, während die Schalensegmente 15,16 um die Horizontalachse 17 des Gewinnungsorganes 1 schwenkbar sind. Zwischen Lagern 18 und der inneren Umfangsfläche 19 der Schalensegmente 15,16 sind Streben 20,21 angeordnet, mittels derer die Drehbewegung erzeugbar ist. Die Befestigung 22 der Lager 18 wird direkt an der Tragkonstruktion 23 eines nicht weiter dargestellten Fahrwerkes vorgenommen. Die Drehbewegung erfolgt über Hydraulikzylinder 24, die an der Strebe 21 angreifen. Die Rundung der Schalensegmente 15,16 sowie des Führungselementes 2 entspricht etwa der Krümmung des Gewinnungsorganes 1. Durch Betätigen des Hydraulikzylinders 24 werden die Schalensegmente 15,16 ein- bzw. ausgefahren. Die Endbereiche der Schalensegmente 15,16 sind mit Nocken 25,26,27,28 versehen, wobei zumindest die Nocken 26 in entsprechende Führungsnuten 29 eingreifen.Figure 2 shows an alternative embodiment of the inventive concept. The same components are provided with the same reference symbols. The extraction member 1 and the guide element 2 are shown again, which serves here, among other things, as a receiving part of further shell segments 15, 16. Here, too, a through opening 13 is provided, which serves for the removal of the material obtained onto a take-off conveyor 14. The guide element 2 is rigid, while the shell segments 15, 16 can be pivoted about the horizontal axis 17 of the extraction member 1. Struts 20, 21 are arranged between bearings 18 and the inner circumferential surface 19 of the shell segments 15, 16, by means of which the rotary movement can be generated. The attachment 22 of the bearing 18 is made directly on the support structure 23 of a chassis, not shown. The rotary movement takes place via hydraulic cylinders 24 which engage the strut 21. The curvature of the shell segments 15, 16 and of the guide element 2 corresponds approximately to the curvature of the extraction member 1. By actuating the hydraulic cylinder 24, the shell segments 15, 16 are retracted or extended. The end regions of the shell segments 15, 16 are provided with cams 25, 26, 27, 28, at least the cams 26 engaging in corresponding guide grooves 29.

Die Figuren 3 und 4 zeigen die Einrichtungen der Figuren 1 und 2 im Betriebszustand. Figur 3 entspricht hierbei Figur 1 mit dem Unterschied, daß die Platten 4 in Vortriebsrichtung ausgefahren werden, sobald das Gewinnungsorgan 1 vom Boden abhebt und einen Schnitt in horizontaler oder vertikaler Richtung durchführt. Analog dazu ist Figur 4 zu sehen, die der Figur 2 entspricht. Auch hier ist erkennbar, daß die Schalensegmente 15,16 in Abhängigkeit von der Arbeitshöhe des Gewinnungsorganes 1 in Umfangsrichtung zustellbar sind.Figures 3 and 4 show the devices of Figures 1 and 2 in the operating state. FIG. 3 corresponds to FIG. 1 with the difference that the plates 4 are extended in the direction of advance as soon as the extraction element 1 lifts off the ground and carries out a cut in the horizontal or vertical direction. Analogously, FIG. 4 can be seen, which corresponds to FIG. 2. It can also be seen here that the shell segments 15, 16 can be advanced in the circumferential direction depending on the working height of the extraction member 1.

In beiden Fällen wird die Verstelleinrichtung durch Kontaktschalter oder dgl. betätigt. Dadurch wird in Abhängigkeit von der Schnittiefe T der Hub H eingestellt bzw. die Anpassung an die unregelmäßig verlaufende Arbeitsfläche erreicht.In both cases, the adjustment device is actuated by contact switches or the like. As a result, the stroke H is set as a function of the depth of cut T or the adaptation to the irregularly running work surface is achieved.

Claims (13)

  1. Loading apparatus for the extraction device (1), in the form of a horizontal cutting roller, of an advance working or mining machine having a guide element (2) for the material being conveyed away, the guide element (2) being constrained to follow the extraction device (1),

    characterised in that

    the loading apparatus below the guide element (2) has at least one component (4,15,16) forming a loading lip, and guide means (5,6,12; 25,26,27,28,29), as well as setting means (8,24), and by means of the setting means (8,24) the loading lip (4,15,16) can be guided further beneath the extraction device (1), the higher the latter is raised from the ground (3).
  2. Loading apparatus according to Claim 1, characterised in that the components (4) are plate-like in shape, and, seen in the advance working direction, are longitudinally movable.
  3. Loading apparatus according to Claims 1 and 2, characterised in that the plates (4) are supported, at least in their outer end regions, by means of rollers (5,6) or sliding guides so as to be longitudinally movable.
  4. Loading apparatus according to Claim 1, characterised in that the components (15,16) are dish segments, which overlap one another in the peripheral direction and are at least partially movable in the peripheral direction.
  5. Loading apparatus according to Claim 4, characterised in that the guide element (2) has a rounded cross-section and in the ground level working region of the extraction device and/or of the loading apparatus serves as a receiving member for the dish segments (15,16).
  6. Loading apparatus according to Claims 4 and 5, characterised in that at least the dish segment (15) nearest to the working region is rotatably supported, at a defined radial distance from the extraction device (1) and/or the loading apparatus, about the horizontal axis (17) of the latter.
  7. Loading apparatus according to Claims 4 to 6, characterised in that connecting struts (20,21) extend between the inner peripheral surface (19) of the dish segments (15,16) and the bearings (18).
  8. Loading apparatus according to Claims 1 to 7, characterised in that the components (4,15,16) are suspended or supported in the region of the carrying structure (12,23) of a mobile chassis.
  9. Loading apparatus according to Claims 1 to 8, characterised in that at least the dish segments (15,16) are provided with radial extensions (25,26,27,28) which form stop members for the retraction and extension of the dish segments (15,16).
  10. Loading apparatus according to Claims 1 to 9, characterised in that the extensions (26) engage in corresponding guide grooves (29).
  11. Loading apparatus according to Claims 1 to 10, characterised in that the longitudinal and/or rotary movement of the components (4,15,16) is effected by means of thrust elements (8,24) such as hydraulic cylinders, spindles, toothed racks or the like.
  12. Loading apparatus according to Claims 1 to 11, characterised in that the adjusting movement of the components (4,15,16) is effected by actuation of contact switches or optical switching devices.
  13. Loading apparatus according to Claims 1 to 12, characterised in that the travel (H) of the components (4,15,16) in the longitudinal and/or peripheral direction is adjustable in response to the cutting depth (T) of the extraction device (1).
EP86115327A 1985-11-28 1986-11-05 Adjustable charging device Expired - Lifetime EP0224084B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86115327T ATE72479T1 (en) 1985-11-28 1986-11-05 ADJUSTABLE LOADER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3542084 1985-11-28
DE19853542084 DE3542084A1 (en) 1985-11-28 1985-11-28 LOADING DEVICE ASSOCIATED WITH THE EXTRACTION ORGANIS OF A PITCHING OR EXTRACTION MACHINE

Publications (2)

Publication Number Publication Date
EP0224084A1 EP0224084A1 (en) 1987-06-03
EP0224084B1 true EP0224084B1 (en) 1992-02-05

Family

ID=6287088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115327A Expired - Lifetime EP0224084B1 (en) 1985-11-28 1986-11-05 Adjustable charging device

Country Status (5)

Country Link
EP (1) EP0224084B1 (en)
AT (1) ATE72479T1 (en)
DE (2) DE3542084A1 (en)
ES (1) ES2029788T3 (en)
GR (1) GR3004481T3 (en)

Families Citing this family (1)

* 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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1298590A (en) * 1970-09-11 1972-12-06 Coal Industry Patents Ltd Method of, and apparatus for, extending gate roadways to advancing faces in underground mines
DE2401196C3 (en) * 1974-01-11 1978-04-13 Ruhrkohle Ag, 4300 Essen Combined loading and drilling trolley for underground mining
US4062595A (en) * 1976-10-15 1977-12-13 The United States Of America As Represented By The Secretary Of The Interior Automatic face transfer linear cutting rotary head continuous mining machine and method
DE2720380C2 (en) * 1977-05-06 1986-01-23 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Tunneling machine
US4226476A (en) * 1977-11-28 1980-10-07 Fairchild Incorporated Continuous miner with improved roof-to-floor anchoring canopy units for advancing and turning machine and installing roof bolts
DE2924550A1 (en) * 1979-06-19 1981-01-15 Gewerk Eisenhuette Westfalia DISMANTLING AND DRIVING MACHINE
GB2114191B (en) * 1982-02-04 1985-12-18 Dobson Park Ind Improvements in or relating to mining equipment
DE3323395C2 (en) * 1983-06-29 1985-05-02 Friedrich Wilhelm Paurat Driving machine for mining routes and tunnels
AT380730B (en) * 1984-09-20 1986-06-25 Voest Alpine Ag BREWING MACHINE

Also Published As

Publication number Publication date
DE3683830D1 (en) 1992-03-19
ATE72479T1 (en) 1992-02-15
GR3004481T3 (en) 1993-03-31
ES2029788T3 (en) 1992-10-01
DE3542084C2 (en) 1987-11-12
EP0224084A1 (en) 1987-06-03
DE3542084A1 (en) 1987-06-04

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