EP0649973B1 - Hydraulic excavator for shield tunneling machine - Google Patents

Hydraulic excavator for shield tunneling machine Download PDF

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Publication number
EP0649973B1
EP0649973B1 EP94115326A EP94115326A EP0649973B1 EP 0649973 B1 EP0649973 B1 EP 0649973B1 EP 94115326 A EP94115326 A EP 94115326A EP 94115326 A EP94115326 A EP 94115326A EP 0649973 B1 EP0649973 B1 EP 0649973B1
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EP
European Patent Office
Prior art keywords
boom
excavator according
mining excavator
cylinder
tunnel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94115326A
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German (de)
French (fr)
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EP0649973A3 (en
EP0649973A2 (en
Inventor
Hans Schaeff
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Karl Schaeff GmbH and Co Maschinenfabrik
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Karl Schaeff GmbH and Co Maschinenfabrik
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Publication of EP0649973A2 publication Critical patent/EP0649973A2/en
Publication of EP0649973A3 publication Critical patent/EP0649973A3/en
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Publication of EP0649973B1 publication Critical patent/EP0649973B1/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
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
    • E21D9/0875—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket
    • 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
    • E21D9/126—Loading devices or installations
    • E21D9/128—Loader-conveyors with gathering arms

Definitions

  • the invention relates to a hydraulically driven excavator for a underground jacking device according to the preamble of claim 1.
  • On an upper supporting part of the shield jacket is connected to a boom by means of a pivot bearing, which around the Pivot bearing horizontally and vertically by means of a hydraulic cylinder entire cross section of the shield can be swiveled and also as a loading aid serves in the demolition masses of a longitudinal conveyor system on the shield floor feed.
  • the outrigger carries a drawbar, which means another Hydraulic cylinder is pivotable.
  • the excavation work is carried out on a tunneling shield known from EP-A-0 359 944 on the working face within a wall sealed by a vertical transverse wall and pressurizable extraction chamber by means of one on one articulated gripper arm attached removal tool performed.
  • the one out several gripping arms which can be articulated to one another is pivotable with its rear end between two bearing approaches stored by one side of a slewing ring with a horizontal axis of rotation going out.
  • the slewing ring is on a support frame attached, in one of an approximately central opening in the transverse wall outgoing horizontal guide tube longitudinally adjustable so that removal tool, Gripping arm and slewing ring through the opening from the removal chamber withdrawn into a maintenance room located behind the transverse wall and can be replaced or repaired there. While of the mining operation, the level of the slewing ring is parallel before the opening of the vertical transverse wall.
  • the object of the invention is to a excavator of the type mentioned create a low-wear at long range and has a simple construction technology and an unobstructed one even in small tunnel cross-sections Use of any dismantling tools and secure removal of the demolition material guaranteed.
  • the proposed suspension of the boom using one of a console plate of the upper pivot bearing outgoing handlebar system offers the possibility of directly or indirectly on removal tool attached to the front end of the boom to carry out large propulsion movements.
  • By changing the length of the hydraulic cylinder parallel to the swing arm can be the boom with its front end over the entire shield or Adjust the tunnel cross-section.
  • the handlebar system forms with its dirt-resistant, low-wear Bearings an advantageously simple longitudinal adjustment device, avoids the problematic tool straight guides.
  • the boom approaches the tunnel ridge, causing above the Longitudinal conveyor system also for the removal of larger lumps of material sufficient space is created.
  • the propulsion device can use relatively large tools be used.
  • each swing arm adjustment cylinder is preferably as a rocker at a lateral distance from each other swing links mounted on the console with one each Swing arm adjustment cylinder provided.
  • the swing arm length so that in the forward or backward pivoted swing end position of the horizontally adjusted Boom is located approximately halfway up the tunnel.
  • At least an additional boom link e.g. dipper stick and / or a or several intermediate brackets
  • articulated adjustable to be appropriate for larger tunnel cross-sections Gain range.
  • the propulsion device consists of a Crawler vehicle with a roof plate supported on it the pivot bearing is attached.
  • the pivot bearing is attached to the vehicle compared to the Longitudinal forces occurring to support jacking will with extendable sideways or through the roof panel Stamps clamped between the tunnel ceiling and sole. Between the supporting walls supporting the roof panel on the chassis can Longitudinal conveyor can be held adjustable in its inclination.
  • a cylindrical jacking plate 10 in the form of a stiffened pipe section of a few meters in length with a front Shield cutting edge 11.
  • the tunneling shield 10 After exposing an additional tunnel length is the tunneling shield 10 with the help of on his not shown rear end attacking pressing means in pushed the excavated space forward so that of the new Position further dismantled and the space behind the tunnel shield in sections through a load-bearing tunnel lining can be braced from concrete, steel or masonry.
  • a level 12 as a support member stiffened partition
  • a rotary bearing 15 is attached, which consists of a slewing ring with a vertical axis of rotation exists, but also as a universal joint with several degrees of freedom can be executed.
  • a lower console plate 16 which can be, for example, by means of a drive motor engaging via a pinion in a ring gear 17 is rotatable about the vertical pivot axis.
  • the through Change in length of the swing cylinder 19 achievable swing pivot angle is approximately 120 °; he can by if necessary Interposition of a deflection linkage actuated by the cylinder be enlarged.
  • the lower end attacks on a boom 21 at a location that is the same Distance from the rear end of a boom 21 and has the lower end of the rocker 18 connecting hinge axis. 1 and 2, the boom 21 is approximately set horizontally, what by an approximately medium stroke or Extension length of the handlebar cylinder 20 is reached, so that the Handlebar cylinder 20 runs parallel to the swing arm 18, that is has the same length as the swingarm and with this a handlebar parallelogram forms, under the effect of the boom 21st remains parallel to itself between the rocker end positions.
  • the inclined lines drawn with broken lines in FIG. 2 Longitudinal axes of the boom 21, starting from its hinge axis the swing arm 18 go out to indicate that the boom 21st from its horizontal course up and down is pivotable about 30 °.
  • the boom 21 consists of a rear narrower section 22 which is bifurcated or upward is open, so that between the side boom walls lower end of the handlebar cylinder 20 fits when the boom 21 reaches its upward inclined end position.
  • the boom has a wide front fork section 23 between whose side fork walls a tool carrier 26th is pivotally mounted.
  • the narrow and wide boom section 22 and 23 are by means of a welded cross tube 24 connected by other or additional cross stiffeners can be replaced or supplemented.
  • the tool carrier 26 contains one between two in their contours recognizable side plates 28 attached hydraulic hammer 27.
  • Fig. 2 is on the underside of the side shields 28 a spoon adjustable about a horizontal axis 29 stored and with the help of a cylinder indicated at 30 30 between the open working position (Fig. 1) and to the Tool carrier 26 created rest position (Fig. 2) pivotable.
  • a cylinder indicated at 30 30 between the open working position (Fig. 1) and to the Tool carrier 26 created rest position (Fig. 2) pivotable.
  • a cylinder indicated at 30 between the open working position (Fig. 1) and to the Tool carrier 26 created rest position (Fig. 2) pivotable.
  • Fig. 2 In the working position of the spoon 29, its teeth protrude beyond Chisel tip of hammer 27 so that when digging material or the hammer chisel when pulling loose rock covered and protected against transverse forces and damage remains.
  • the tool carrier 26 is approximately in its longitudinal center Transverse axis 40 pivotally mounted, the two side axle bolts define at the front end of the boom 21.
  • the tool carrier 26 runs approximately perpendicular to the longitudinal axis of the boom 21, so that the spoon 29 clearing material via a push-open ramp 42 of a lower one Longitudinal conveyor 44 can supply.
  • 2 is the tool carrier 26 adjusted so that the chisel of the hydraulic hammer 27 in its main working direction and the longitudinal axis of the Boom 21 are aligned.
  • the length of the rocker is preferred 18 dimensioned so that in the front and rear rocker end position the horizontally set boom 21 is about halfway Tunnel height.
  • the tool carrier 26 can be in 2 shows the main working direction of the hydraulic hammer 27 be pivoted further upwards with the hammer or another tool diagonally upwards against the top of the tunnel to work.
  • the tool carrier 26 with the help of the pivot cylinder 25 Execution of normal bucket movements up to at least 120 ° the transverse axis 40 is pivoted.
  • 3 and 4 differs from that First described example mainly in that at the front End of the boom 21 of equal width over its entire length a dipper stick 46 is articulated by one stick cylinder 25 supported on the top of the boom is pivoted. At the front end of the dipper stick 46 is a Digging spoon 48 stored by any other tool, e.g. also by a hydraulic hammer or a tool carrier 26 (Fig. 2) can be replaced and with the help of an Arm supported bucket cylinder 50 is pivoted.
  • a Digging spoon 48 stored by any other tool, e.g. also by a hydraulic hammer or a tool carrier 26 (Fig. 2) can be replaced and with the help of an Arm supported bucket cylinder 50 is pivoted.
  • the pivot bearing 15 and also the lower longitudinal conveyor 44 be located at a greater distance from the shield edge, so that a larger free space for intermediate storage in front of the longitudinal conveyor system dissolved waste material and the tool for longer periods only to advance the tunnel or only for the transfer of the intermediate storage material the conveyor system can be used.
  • FIG. 5 shows a driving shield 10 larger Diameter when crossing one of free-flowing material existing mining route.
  • the longitudinal conveyor 44 are at intermediate levels cutting one or more horizontal retaining blades on the tunneling shield 11 arranged, using the tripartite Boom assembly conveniently from above or from below let bypass.
  • Fig. 5 shows the broken lines Digging bucket 48 when working below the retaining edge 11. The bucket 48 can continue from the indicated digging position be moved forward when you tilt the boom 21 down and move it forward with the handlebar system.
  • the side parts 33 have for the movements of the handlebar system a sufficient lateral distance from each other be cranked outwards over the height of the rocker 18 and are recessed at the front or set back so far that the the console 16 mounted steering system its for work on carry out the necessary rotary movements unhindered can.
  • Fig. 9 as a front view of the mobile excavator in the state 4 shows a laterally above the one caterpillar and driver's stand 39 arranged below the roof panel 35 and one of two spaced from each other Swing members existing swing arm 18, the under side Distance from the console 16 downward projections is stored.
  • Fig. 9 also shows the side plates 28 of the Tool carrier 26, the hydraulic hammer held between them 27 and fangs arranged at the outer end of the spoon 29, which are located above the belt conveyor 44, in front of the one e.g. Slide-open ramp 42 arranged in a fan-shaped manner is.
  • Fig. 7-9 With an excavator vehicle according to Fig. 7-9, narrow tunnels, Pipes or underground sewers are used, to cut off old brickwork, for example, tunnel cross-sections to enlarge or eliminate collapses. How for the arm of the shield can also be used for the vehicle separate electrical remote control can be provided. From the vehicle 32 can be an electrically operated hydraulic system a trailer, over which an additional Conveyor belt transported the excavation. Instead of one The crawler track can move the jacking device to another Special chassis can be arranged.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

PURPOSE: To improve operation efficiency in a tunnel by equipping a console that is suspended on a support stand rotatably with a swing arm, a control cylinder, a jib, and the like, and fitting an attachment that operates differently. CONSTITUTION: A console 16 that is suspended on an upper support stand 12 rotatably is equipped with a control cylinder 20 for tilting a rock arm 18 and a jib 21, a pivoting cylinder 25 of an attachment, and the like. Then, an excavating tool 26 with a drill and a shovel is fitted to the tip of a device, and each hydraulic cylinder is operated for excavation and raking. Also, depending on the details of operation, the excavating tool 26 is removed and exchanged with an excavating shovel 48 for excavation. Also, by installing the upper support stand 12 on a driving vehicle, the entire device can be moved, thus performing operation efficiently even if space in the tunnel or the like is narrow.

Description

Die Erfindung betrifft einen hydraulisch angetriebenen Abbaubagger für eine unterirdische Vortriebseinrichtung entsprechend Oberbegriff von Anspruch 1.The invention relates to a hydraulically driven excavator for a underground jacking device according to the preamble of claim 1.

Die Zeitschrift "Bauplanuiig-Bautechnik" 1984, S 226-228, zeigt einen rohrförmigen Schild zum unterirdischen Vortrieb beim Bau von Verkehrsanlagen oder Ent- und Versorgungstrassen. An ein oberes Tragteil des Schildmantels ist mittels eines Drehlagers ein Ausleger angeschlossen, der um das Drehlager horizontal und mittels eines Hydraulikzylinders vertikal über den gesamten Schildquerschnitt geschwenkt werden kann und außerdem als Ladehilfe dient, im die Abbruchmassen einer Längsförderanlage am Schildboden zuzuführen. Der Ausleger trägt eine Zughacke, die mittels eines weiteren Hydraulikzylinders schwenkbar ist. Sobald mit Hilfe des Werkzeuges ein vor dem Schild liegender Bereich der Abbaustrecke abgegraben und das Abbruchgut über die Längsförderanlage beseitigt worden ist, wird der Tunnelschild mittels im bereits ausgebauten Tunnel abgestützter Presseinrichtungen um eine bestimmte Länge vorgetrieben.The magazine "Bauplanuiig-Bautechnik" 1984, S 226-228, shows one tubular shield for underground tunneling when building traffic facilities or Ent- and supply routes. On an upper supporting part of the shield jacket is connected to a boom by means of a pivot bearing, which around the Pivot bearing horizontally and vertically by means of a hydraulic cylinder entire cross section of the shield can be swiveled and also as a loading aid serves in the demolition masses of a longitudinal conveyor system on the shield floor feed. The outrigger carries a drawbar, which means another Hydraulic cylinder is pivotable. As soon as using the tool dug an area of the mining section in front of the sign and that Demolition goods have been removed via the longitudinal conveyor system, the tunnel shield by means of pressing equipment supported in the tunnel that has already been removed advanced by a certain length.

Bei einem aus EP-A-0 359 944 bekannten Vortriebsschild werden die Grabarbeiten an der Ortsbrust innerhalb einer durch eine vertikale Querwand abgedichteten und unter Druck setzbaren Abbaukammer mittels eines an einem gelenkigen Greifarm angebrachten Abbauwerkzeuges durchgeführt. Der aus mehreren gelenkig zueinander einstellbaren Armteilen bestehende Greifarm ist mit seinem rückwärtigen Ende zwischen zwei Lageransätzen schwenkbar gelagert, die von eines Seite eines Drehkranzes mit horizontaler Drehachse ausgehen. Mit seiner anderen Seite ist der Drehkranz an einem Traggestell befestigt, das in einer von einer etwa zentrischen Öffnung in der Querwand ausgehenden horizontalen Führungsröhre längsverstellbar, so daß Abbauwerkzeug, Greifarm und Drehkranz durch die Öffnung hindurch aus der Abbaukammer in einen hinter der Querwand befindlichen Wartungsraum zurückgezogen und dort ausgewechselt bzw. repariert werden können. Während des Abbaubetriebs befindet sich die Ebene des Drehkranzes parallel vor der Öffnung der vertikalen Querwand.The excavation work is carried out on a tunneling shield known from EP-A-0 359 944 on the working face within a wall sealed by a vertical transverse wall and pressurizable extraction chamber by means of one on one articulated gripper arm attached removal tool performed. The one out several gripping arms which can be articulated to one another is pivotable with its rear end between two bearing approaches stored by one side of a slewing ring with a horizontal axis of rotation going out. With its other side, the slewing ring is on a support frame attached, in one of an approximately central opening in the transverse wall outgoing horizontal guide tube longitudinally adjustable so that removal tool, Gripping arm and slewing ring through the opening from the removal chamber withdrawn into a maintenance room located behind the transverse wall and can be replaced or repaired there. While of the mining operation, the level of the slewing ring is parallel before the opening of the vertical transverse wall.

Aufgabe der Erfindung ist, einen Abbaubagger der vorbezeichneten Art zu schaffen, der bei großer Reichweite eine verscheißarme und fertigungstechnisch einfache Bauweise aufweist und auch in kleinen Tunnelquerschnitten einen unbehinderten Einsatz beliebiger Abbauwerkzeuge und einen gesicherten Abtransport des Abbruchmaterials gewährleistet.The object of the invention is to a excavator of the type mentioned create a low-wear at long range and has a simple construction technology and an unobstructed one even in small tunnel cross-sections Use of any dismantling tools and secure removal of the demolition material guaranteed.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing Features of claim 1 solved.

Die vorgeschlagene Aufhängung des Auslegers mittels eines von einer Konsolplatte des oberen Drehlagers ausgehenden Lenkersystems bietet die Möglichkeit, mit dem direkt oder mittelbar am vorderen Ende des Auslegers angebrachten Abbauwerkzeug vorteilhaft große Vortriebsbewegungen auszuführen. Durch Längenänderung des zur Schwinge parallelen Hydraulikzylinders läßt sich der Ausleger mit seinem vorderen Ende über den gesamten Schild- oder Tunnelquerschnitt verstellen. Dabei bildet das Lenkersystem mit seinen schmutz-unempfindlichen, verschleißarmen Lagerstellen eine vorteilhaft einfache Längsverstelleinrichtung, die problematische Werkzeug-Geradführungen vermeidet. Bei nach vorn oder nach hinten geneigtem Verlauf des Lenkersystem nähert sich der Ausleger dem Tunnelfirst, wodurch oberhalb der Längsförderanlage ein auch Zum Abtransport größerer Materialklumpen ausreichender Freiraum entsteht. Außerdem bleibt der Längsförderer frei zugänglich und kann bei Verstopfung von beiden Seiten aus gereinigt werden. Selbst bei kleineren Abmessungen der Vortriebseinrichtung können relativ große Werkzeuge eingesetzt werden. The proposed suspension of the boom using one of a console plate of the upper pivot bearing outgoing handlebar system offers the possibility of directly or indirectly on removal tool attached to the front end of the boom to carry out large propulsion movements. By changing the length of the hydraulic cylinder parallel to the swing arm can be the boom with its front end over the entire shield or Adjust the tunnel cross-section. The handlebar system forms with its dirt-resistant, low-wear Bearings an advantageously simple longitudinal adjustment device, avoids the problematic tool straight guides. At forward or backward slope of the handlebar system the boom approaches the tunnel ridge, causing above the Longitudinal conveyor system also for the removal of larger lumps of material sufficient space is created. In addition, the remains Longitudinal conveyor freely accessible and can block both Pages are cleaned out. Even with smaller dimensions The propulsion device can use relatively large tools be used.

Vorzugsweise sind als Schwinge unter seitlichem Abstand zueinander an der Konsole gelagerte Schwingenglieder mit je einem Schwingen-Verstellzylinder vorgesehen. Gleichermaßen können zwei nebeneinander unter seitlichem Abstand angeordnete Hydraulikzylinder zur Verstellung der Auslegerneigung vorgesehen und als Parallel-Lenker zur Schwinge bzw. zu den Schwingenteilen einstellbar sein. Bei einer Ausführungsform der Erfindung ist die Schwingenlänge so bemessen, daß in der nach vorn oder hinten verschwenkten Schwingenendlage der waagerecht eingestellte Ausleger sich etwa auf halber Tunnelhöhe befindet.Are preferably as a rocker at a lateral distance from each other swing links mounted on the console with one each Swing arm adjustment cylinder provided. Likewise, you can two hydraulic cylinders arranged next to each other at a lateral distance provided for adjusting the boom inclination and as a parallel link to the swing arm or to the swing arm parts be adjustable. In one embodiment of the invention the swing arm length so that in the forward or backward pivoted swing end position of the horizontally adjusted Boom is located approximately halfway up the tunnel.

Eine Ausgestaltung, bei der das Abbauwerkzeug unmittelbar am vorderen Ende des Auslegers angeschlossen ist, sieht vor, daß in einer vorderen Gabelung des Auslegers ein mit einem Löffel und einem Hydraulikhammer oder anderen Werkzeugen versehener Werkzeugträgerkörper gelagert und mittels eines oder mehrerer Hydraulikzylinder schwenkbar ist. Die Auslegergabelung ermöglicht eine kompakte Bauweise mit stabiler Lagerung des Werkzeugträgerkörpers, der im Fall des Löffeleinsatzes im Sinn üblicher Löffelbewegungen geschwenkt wird, um weiches Material abzugraben oder vom Hammer aufgebrochenes Gestein abzulösen und der Längsförderanlage zuzuführen.An embodiment in which the removal tool directly on front end of the boom is connected, that in a front fork of the boom one with a spoon and a hydraulic hammer or other tools Tool carrier body stored and by means of one or more Hydraulic cylinder is pivotable. The boom fork enables a compact design with stable storage of the Tool carrier body, which in the case of the use of a spoon in mind usual spoon movements is pivoted to soft material dig up or detach rock broken from the hammer and fed to the longitudinal conveyor system.

Zwischen dem vorderen Ende des Auslegers und einem Werkzeugträgerkörper oder einem beliebigen Abbauwerkzeug kann mindestens ein zusätzliches Auslegerglied (z.B. Löffelstiel und/oder ein oder mehrere Zwischenausleger) gelenkig verstellbar angeschlossen sein, um bei größeren Tunnelquerschnitten eine entsprechende Reichweite zu gewinnen. Between the front end of the boom and a tool carrier body or any mining tool can at least an additional boom link (e.g. dipper stick and / or a or several intermediate brackets) articulated adjustable to be appropriate for larger tunnel cross-sections Gain range.

Gemäß einer Variante besteht die Vortriebseinrichtung aus einem Raupenfahrzeug mit einer darauf abgestützten Dachplatte, an der das Drehlager angebracht ist. Um das Fahrzeug gegenüber den bei Vortriebsarbeiten auftretenden Längskräften abzustützen, wird mit seitwärts oder durch die Dachplatte mach oben ausfahrbaren Stempeln zwischen Tunneldecke und -sohle festgespannt. Zwischen den die Dachplatte am Fahrwerk stützenden Tragwänden kann die Längsförderanlage in ihrer Neigung verstellbar gehalten sein.According to a variant, the propulsion device consists of a Crawler vehicle with a roof plate supported on it the pivot bearing is attached. To the vehicle compared to the Longitudinal forces occurring to support jacking will with extendable sideways or through the roof panel Stamps clamped between the tunnel ceiling and sole. Between the supporting walls supporting the roof panel on the chassis can Longitudinal conveyor can be held adjustable in its inclination.

Ausführungsbeispiele des Abbaubaggers nach der Erfindung sind anhand der Zeichnungen näher erläutert. Darin zeigen, jeweils schematisch,

Fig. 1 und 2
einen am First eines Vortriebsschildes angebrachten Abbaubagger in rückwärtiger bzw. vorderer Schwenkstellung des Lenkersysstems,
Fig. 3 und 4
einen Abbaubagger wie in Fig. 1 und 2, bei dem der Werkzeugträgerkörper durch einen Löffelstiel mit Grablöffel ersetzt ist,
Fig. 5 und 6
einen Abbaubagger wie in Fig. 1 und 2, bei dem an einem verkürzten Grundausleger ein Zwischenausleger und ein Löffelstiel mit Grablöffel gelenkig angeschlossen sind,
Fig. 7 und 8
eine Vortriebseinrichtung in Form eines Fahrzeuges mit daran angebrachtem Abbaubagger in den Fig. 1 bzw. 2 entsprechenden Arbeitsstellungen,
Fig. 9
eine Frontansicht des Abbaubaggers ähnlich Fig. 7, 8.
Embodiments of the excavator according to the invention are explained in more detail with reference to the drawings. It shows, each schematically,
1 and 2
a excavator attached to the ridge of a jacking plate in the rear or front swivel position of the handlebar system,
3 and 4
a mining excavator as in Fig. 1 and 2, in which the tool carrier body is replaced by a dipper stick with digging bucket,
5 and 6
1 and 2, in which an intermediate boom and a dipper stick with digging bucket are connected in an articulated manner to a shortened basic boom,
7 and 8
a jacking device in the form of a vehicle with a mining excavator attached to it in FIGS. 1 and 2 corresponding working positions,
Fig. 9
a front view of the excavator similar to Fig. 7, 8th

In einem in Fig. 1 und 2 nach links vorzutreibenden Tunnel befindet sich ein zylindrisches Vortriebsschild 10 in Form eines versteiften Rohrabschnittes von einigen m Länge mit einer vorderen Schildschneide 11. Nach Freilegen einer zusätzlichen Tunnellänge wird das Vortriebsschild 10 mit Hilfe von an seinem nicht gezeigten rückwärtigen Ende angreifenden Preßmitteln in den freigegrabenen Raum vorwärts gedrückt, so daß von der neuen Position aus weiter abgebaut und der Raum hinter dem Vortriebsschild abschnittsweise durch eine tragende Tunnelauskleidung aus Beton, Stahl oder Mauerwerk ausgesteift werden kann. Am gewölbten Schildfirst befindet dich als Tragteil 12 eine ebene versteifte Zwischenwand, an deren Unterseite ein Drehlager 15 befestigt ist, das aus einem Drehkranz mit senkrechter Drehachse besteht, aber auch als Universalgelenk mit mehreren Freiheitsgraden ausgeführt sein kann. Teil des Drehlagers 15 ist eine untere Konsolplatte 16, die mit Hilfe eines zum Beispiel über ein Ritzel in einen Zahnkranz eingreifenden Antriebsmotors 17 um die senkrechte Drehlagerachse drehbar ist.In a tunnel to be driven to the left in FIGS. 1 and 2 a cylindrical jacking plate 10 in the form of a stiffened pipe section of a few meters in length with a front Shield cutting edge 11. After exposing an additional tunnel length is the tunneling shield 10 with the help of on his not shown rear end attacking pressing means in pushed the excavated space forward so that of the new Position further dismantled and the space behind the tunnel shield in sections through a load-bearing tunnel lining can be braced from concrete, steel or masonry. At the arched shield ridge is a level 12 as a support member stiffened partition, on the underside of a rotary bearing 15 is attached, which consists of a slewing ring with a vertical axis of rotation exists, but also as a universal joint with several degrees of freedom can be executed. Is part of the pivot bearing 15 a lower console plate 16, which can be, for example, by means of a drive motor engaging via a pinion in a ring gear 17 is rotatable about the vertical pivot axis.

An unteren Ansätzen der Konsolplatte 16 ist ein Schwenklager mit waagerechter Achse für das obere Ende einer Schwinge 18 vorgesehen, die durch einen in Vortriebsrichtung hinter der Schwinge an der Konsolplatte 16 und an einem rückwärtigen Ansatz der Schwinge 18 gelagerten Schwingenzylinder 19 zwischen einer in Fig. 1 gezeigten rückwärtigen Endstellung und einer in Fig. 2 gezeigten vorderen Endstellung schwenkbar ist. Der durch Längenänderung des Schwingenzylinders 19 erreichbare Schwingenschwenkwinkel beträgt ungefähr 120°; er kann bei Bedarf durch Zwischenschaltung eines vom Zylinder betätigten Umlenkgestänges vergrößert werden.At the lower lugs of the console plate 16 is a pivot bearing with a horizontal axis for the upper end of a rocker arm 18 provided by a in the direction of advance behind the Swing arm on the console plate 16 and on a rear approach the swing arm 18 mounted swing cylinder 19 between a rear end position shown in Fig. 1 and one in Fig. 2 shown front end position is pivotable. The through Change in length of the swing cylinder 19 achievable swing pivot angle is approximately 120 °; he can by if necessary Interposition of a deflection linkage actuated by the cylinder be enlarged.

Mit vorderem Abstand von der Schwinge 18 ist am Ansatz der Konsole 16 ein Lenkerzylinder 20 gelagert, dessen unteres Ende an einem Ausleger 21 an einer Stelle angreift, die den gleichen Abstand von einer das rückwärtige Ende eines Auslegers 21 und das untere Ende der Schwinge 18 verbindenden Gelenkachse aufweist. Entsprechend Fig. 1 und 2 ist der Ausleger 21 ungefähr waagerecht eingestellt, was durch eine etwa mittlere Hub- oder Ausfahrlänge des Lenkerzylinders 20 erreicht wird, so daß der Lenkerzylinder 20 parallel zur Schwinge 18 verläuft, also die gleiche Länge wie die Schwinge hat und mit dieser ein Lenkerparallelogramm bildet, unter dessen Wirkung der Ausleger 21 zwischen den Schwingenendlagen parallel zu sich selbst bleibt. Die in Fig. 2 mit unterbrochenen Linien eingezeichneten geneigten Längsachsen des Auslegers 21, die von seiner Gelenkachse an der Schwinge 18 ausgehen, sollen andeuten, daß der Ausleger 21 aus seinem waagerechten Verlauf nach oben und unten jeweils etwa 30° verschwenkbar ist.At the front distance from the rocker 18 is at the neck of the Console 16 mounted a handlebar cylinder 20, the lower end attacks on a boom 21 at a location that is the same Distance from the rear end of a boom 21 and has the lower end of the rocker 18 connecting hinge axis. 1 and 2, the boom 21 is approximately set horizontally, what by an approximately medium stroke or Extension length of the handlebar cylinder 20 is reached, so that the Handlebar cylinder 20 runs parallel to the swing arm 18, that is has the same length as the swingarm and with this a handlebar parallelogram forms, under the effect of the boom 21st remains parallel to itself between the rocker end positions. The inclined lines drawn with broken lines in FIG. 2 Longitudinal axes of the boom 21, starting from its hinge axis the swing arm 18 go out to indicate that the boom 21st from its horizontal course up and down is pivotable about 30 °.

Entsprechend Fig. 1, 2 besteht der Ausleger 21 aus einem rückwärtigen schmäleren Abschnitt 22, der gegabelt oder nach oben offen ist, so daß zwischen den seitlichen Auslegerwänden das untere Ende des Lenkerzylinders 20 Platz findet, wenn der Ausleger 21 seine nach oben geneigte Endstellung erreicht. Der Ausleger besitzt einen breiten vorderen Gabelabschnitt 23, zwischen dessen seitlichen Gabelwänden ein Werkzeugträger 26 schwenkbar gelagert ist. Der schmale und der breite Auslegerabschnitt 22 bzw. 23 sind mittels eines verschweißten Querrohrs 24 verbunden, das durch andere oder zusätzliche Querversteifungen ersetzt bzw. ergänzt sein kann.1, 2, the boom 21 consists of a rear narrower section 22 which is bifurcated or upward is open, so that between the side boom walls lower end of the handlebar cylinder 20 fits when the boom 21 reaches its upward inclined end position. Of the Boom has a wide front fork section 23 between whose side fork walls a tool carrier 26th is pivotally mounted. The narrow and wide boom section 22 and 23 are by means of a welded cross tube 24 connected by other or additional cross stiffeners can be replaced or supplemented.

Der Werkzeugträger 26 enthält einen zwischen zwei in ihren Umrissen erkennbaren Seitenschilden 28 befestigten Hydraulikhammer 27. Entsprechend Fig. 2 ist an der Unterseite der Seitenschilde 28 ein um eine waagerechte Achse einstellbarer Löffel 29 gelagert und mit Hilfe eines bei 30 angedeuteten Zylinders 30 zwischen aufgeklappter Arbeitsstellung (Fig. 1) und an den Werkzeugträger 26 angelegter Ruhestellung (Fig. 2) schwenkbar. In der Arbeitsstellung des Löffels 29 überragen seine Zähne die Meißelspitze des Hammers 27, so daß beim Abgraben von Material oder beim Heranziehen von gelockertem Gestein der Hammermeißel abgedeckt und gegen Querkräfte und Beschädigungen geschützt bleibt.The tool carrier 26 contains one between two in their contours recognizable side plates 28 attached hydraulic hammer 27. According to Fig. 2 is on the underside of the side shields 28 a spoon adjustable about a horizontal axis 29 stored and with the help of a cylinder indicated at 30 30 between the open working position (Fig. 1) and to the Tool carrier 26 created rest position (Fig. 2) pivotable. In the working position of the spoon 29, its teeth protrude beyond Chisel tip of hammer 27 so that when digging material or the hammer chisel when pulling loose rock covered and protected against transverse forces and damage remains.

Der Werkzeugträger 26 ist ungefähr in seiner Längsmitte um eine Querachse 40 schwenkbar gelagert, die zwei seitliche Achsbolzen am vorderen Ende des Auslegers 21 definieren. An den Seitenschilden 28 greifen zwei Schwenkzylinder 25 an, deren rückwärtige Enden an Ansätzen des rückwärtigen Auslegerabschnittes 22 angelenkt sind. In der ausgefahrenen Endlage der Schwenkzylinder 25 entsprechend Fig. 1 verläuft der Werkzeugträger 26 ungefähr senkrecht zur Längsachse des Auslegers 21, so daß der Löffel 29 Abraummaterial über eine Aufschubrampe 42 einer unteren Längsförderanlage 44 zuführen kann. Gemäß Fig. 2 ist der Werkzeugträger 26 so eingestellt, daß der Meißel des Hydraulikhammers 27 in seiner Hauptarbeitsrichtung und die Längsachse des Auslegers 21 fluchten. Vorzugsweise ist die Länge der Schwinge 18 so bemessen, daß in der vorderen und hinteren Schwingenendlage der waagerecht eingestellte Ausleger 21 sich etwa auf halber Tunnelhöhe befindet. Der Werkzeugträger 26 kann über die in Fig. 2 gezeigte Hauptarbeitsrichtung des Hydraulikhammers 27 weiter nach oben verschwenkt werden, um mit dem Hammer oder einem anderen Werkzeug von unten schräg aufwärts gegen die Tunneloberseite zu arbeiten. Beim Arbeitseinsatz des Löffels 29 wird der Werkzeugträger 26 mit Hilfe der Schwenkzylinder 25 zur Ausführung üblicher Löffelbewegungen bis zu mindestens 120° um die Querachse 40 verschwenkt.The tool carrier 26 is approximately in its longitudinal center Transverse axis 40 pivotally mounted, the two side axle bolts define at the front end of the boom 21. On the side shields 28 attack two swivel cylinders 25, the rear Ends at lugs of rear boom section 22 are articulated. In the extended end position of the swivel cylinder 25, the tool carrier 26 runs approximately perpendicular to the longitudinal axis of the boom 21, so that the spoon 29 clearing material via a push-open ramp 42 of a lower one Longitudinal conveyor 44 can supply. 2 is the tool carrier 26 adjusted so that the chisel of the hydraulic hammer 27 in its main working direction and the longitudinal axis of the Boom 21 are aligned. The length of the rocker is preferred 18 dimensioned so that in the front and rear rocker end position the horizontally set boom 21 is about halfway Tunnel height. The tool carrier 26 can be in 2 shows the main working direction of the hydraulic hammer 27 be pivoted further upwards with the hammer or another tool diagonally upwards against the top of the tunnel to work. When using the bucket 29 the tool carrier 26 with the help of the pivot cylinder 25 Execution of normal bucket movements up to at least 120 ° the transverse axis 40 is pivoted.

Die Ausführungsform gemäß Fig. 3 und 4 unterscheidet von dem zuerst beschriebenen Beispiel vor allem darin, daß am vorderen Ende des über seine gesamte Länge gleich breiten Auslegers 21 ein Löffelstiel 46 gelenkig angeschlossen ist, der von einem auf der Oberseite des Auslegers abgestützten Stielzylinder 25 geschwenkt wird. Am vorderen Ende des Löffelstiels 46 ist ein Grablöffel 48 gelagert, der durch ein beliebiges anderes Werkzeug, z.B. auch durch einen Hydraulikhammer oder einen Werkzeugträger 26 (Fig. 2) ersetzt sein kann und mit Hilfe eines am Löffelstiel abgestützten Löffelzylinders 50 geschwenkt wird. Aufgrund der mit dem Löffelstiel erzielten größeren Reichtweite kann das Drehlager 15 und auch die untere Längsförderanlage 44 in größerer Entfernung von der Schildschneide angeordnet sein, so daß vor der Längsförderanlage ein größerer Freiraum zur Zwischenlagerung gelösten Abraummaterials entsteht und das Werkzeug über längere Perioden nur zum Vortrieb des Tunnels bzw. nur zur Überführung des zwischengelagerten Abraummaterials auf die Förderanlage genutzt werden kann.3 and 4 differs from that First described example mainly in that at the front End of the boom 21 of equal width over its entire length a dipper stick 46 is articulated by one stick cylinder 25 supported on the top of the boom is pivoted. At the front end of the dipper stick 46 is a Digging spoon 48 stored by any other tool, e.g. also by a hydraulic hammer or a tool carrier 26 (Fig. 2) can be replaced and with the help of an Arm supported bucket cylinder 50 is pivoted. Because of the longer reach achieved with the dipper stick can the pivot bearing 15 and also the lower longitudinal conveyor 44 be located at a greater distance from the shield edge, so that a larger free space for intermediate storage in front of the longitudinal conveyor system dissolved waste material and the tool for longer periods only to advance the tunnel or only for the transfer of the intermediate storage material the conveyor system can be used.

An unter seitlichem Abstand zueinander angeordneten unteren Ansätzen der Konsolplatte 16 sind zwei Schwingenglieder 18 mit zugeordneten Schwingenzylindern 19 sowie zwei zum Lenkersystem gehörende und die Auslegerneigung verändernde Zylinder 20 angelenkt, die an beiden Seiten des Auslegers 21 angreifen. Ein solches aus vier Gliedern bestehendes Lenkersystem kann auch bei der Ausführungsform gemäß Fig. 1, 2 benutzt werden, obwohl dort nur ein einzelner Zylinder 20 und eine einzige breite oder aus zwei Schwingengliedern bestehende Schwinge 18 gezeigt ist. Im Fall von zwei Schwingengliedern können auch zwei Schwingenzylinder 19 vorgesehen sein.At the lower, spaced from each other Approaches of the console plate 16 are two rocker links 18 with assigned swing cylinders 19 and two to the handlebar system belonging cylinder 20 which changes the boom inclination, which attack on both sides of the boom 21. A such a four-link handlebar system can also 1, 2 can be used in the embodiment according to FIG there only a single cylinder 20 and a single wide or rocker 18 consisting of two rocker members is shown. In the case of two link members, two link cylinders can also be used 19 may be provided.

Bei der Ausführungsform nach Fig. 5, 6 ist am vorderen Ende eines relativ kurzen Auslegers 21 ein Zwischenausleger 52 angelenkt, der mit Hilfe des auf der Oberseite des Auslegers abgestützten Zylinders 25 schwenkbar ist. Am vorderen Ende des Zwischenauslegers 52 ist das rückwärtige Ende eines Löffelstiels 46 gelenkig angeschlossen, der wie zuvor einen Grablöffel 48 oder ein beliebiges anderes Grabwerkzeug trägt. Zum Verschwenken des Löffelstiels 46 dienen zwei beiderseits am Zwischenausleger 52 angelenkte "innere" Stielzylinder 54, und zur Erzielung eines weiten Schwenkbereiches des Grablöffels 48 wirkt der am Löffelstiel 46 abgestützte Löffelzylinder 50 auf ein am Löffelstiel und am Grablöffel angelenktes Hebelgestänge 56, 58.5, 6 is at the front end a relatively short boom 21 articulated an intermediate boom 52, which is supported on the top of the boom Cylinder 25 is pivotable. At the front end of the intermediate boom 52 is the rear end of a stick 46 articulated, which, like before, a digging spoon 48 or carries any other digging tool. For pivoting the arm 46 serve two on both sides of the intermediate boom 52 articulated "inner" stem cylinders 54, and to achieve a wide swivel range of the digging spoon 48 acts on the dipper arm 46 supported bucket cylinder 50 on a Dipper stick and lever linkage 56, 58 hinged to the digging spoon.

Als Anwendungsbeispiel für diese dreigliedrige Auslegerbaugruppe 21, 52, 46 zeigt Fig. 5, 6 ein Vortriebsschild 10 größeren Durchmessers beim Durchqueren einer aus rieselfähigem Material bestehenden Abbaustrecke. Um zu vermeiden, daß das lockere Abraumgut auf dem Boden des Vortriebsschildes 10 zu große Ansammlungen bildet oder herabfallende Materialklumpen/Gesteinsbrocken die Längsförderanlage 44 schädigen, sind auf Zwischenhöhen des Vortriebsschildes ein oder mehrere waagerechte Rückhalteschneiden 11 angeordnet, die sich mit Hilfe der dreigliedrigen Auslegerbaugruppe bequem von oben oder von unten umgehen lassen. Fig. 5 zeigt mit unterbrochenen Linien den Grablöffel 48 bei Arbeiten unterhalb der Rückhalteschneide 11. Von der angedeuteten Grabposition kann der Löffel 48 weiter vorwärts bewegt werden, wenn man den Ausleger 21 abwärts neigt und ihn mit dem Lenkersystem nach vorn bewegt. - Ebenso kann gemäß Fig. 6 das oberhalb der Rückhalteschneide 11 arbeitende Grabwerkzeug weiter vorgetrieben werden, indem man das Lenkersystem bis in seine vordere Endstellung bringt und die Richtung des Zwischenauslegers 52 an die des Auslegers 21 annähert. Unter Berücksichtigung eines großen Durchmessers des Vortriebsschildes 10 und des am Auslegers 21 hauptsächlich nach oben schwenkbaren Zwischenausleger 52 ist gemäß Fig. 5, 6 das Drehlager 15 an einem höheren bzw. der Längsmitte des Vortriebsschildes näheren Tragteil 12a befestigt. Auch hier befindet sich der waagerecht eingestellte Ausleger 21 ungefähr auf halber Schildhöhe.As an application example for this three-part boom assembly 21, 52, 46, Fig. 5, 6 shows a driving shield 10 larger Diameter when crossing one of free-flowing material existing mining route. To avoid the loose overburden too large accumulations on the bottom of the tunneling shield 10 forms or falling lumps of material / rocks damage the longitudinal conveyor 44 are at intermediate levels cutting one or more horizontal retaining blades on the tunneling shield 11 arranged, using the tripartite Boom assembly conveniently from above or from below let bypass. Fig. 5 shows the broken lines Digging bucket 48 when working below the retaining edge 11. The bucket 48 can continue from the indicated digging position be moved forward when you tilt the boom 21 down and move it forward with the handlebar system. - Likewise can 6 that working above the retaining blade 11 Digging tools can be further advanced by using the handlebar system to its front end position and the direction of the intermediate boom 52 approximates that of the boom 21. Taking into account a large diameter of the jacking plate 10 and the boom 21 mainly upwards 5, 6 is the pivot bearing 15 at a higher or the longitudinal center of the tunnel shield closer support member 12a attached. Also located here the horizontally set boom 21 is approximately halfway Shield height.

Beim Ausführungsbeispiel gemäß Fig. 7 bis 9 ist das Drehlager 15 des aus vergleichbaren Komponenten wie bei den zuvor beschriebenen Ausführungsformen bestehenden Abbaubaggers an der Unterseite einer stabilen und abgesteiften Dachplatte 35 befestigt, die auf vom Fahrwerkrahmen 31 einer raupengetriebenen Vortriebseinrichtung 32 ausgehenden Seitenteilen 33 abgestützt ist. Die Seitenteile 33 haben für die Bewegungen des Lenkersystems einen ausreichenden seitlichen Abstand voneinander, können über die Höhe der Schwinge 18 auch auswärts gekröpft sein und sind vorn ausgespart oder so weit zurückgesetzt, daß das an der Konsole 16 gelagerte Lenkersystem seine für Arbeiten über die Tunnelbreite notwendigen Drehbewegungen unbehindert ausführen kann. Um die fahrbare Vortriebseinrichtung gegenüber den bei Abbauarbeiten auftretenden Längskräften abzustützen, kann sie mit Hilfe von durch die Dachplatte 35 nach oben oder auch seitlich aufwärts geneigt (nicht gezeigt) ausfahrbaren Stempeln 34 zwischen Tunneldecke und -Sohle verspannt werden. Für die senkrechten Stempel 34 sind an den Seitenteilen 33 Führungen und nicht gezeigte Stempelzylinder vorgesehen.7 to 9 is the pivot bearing 15 of the same components as those previously described Embodiments of existing excavators on the Fixed underside of a stable and braced roof plate 35, from the undercarriage frame 31 of a track-driven Propulsion device 32 outgoing side parts 33 supported is. The side parts 33 have for the movements of the handlebar system a sufficient lateral distance from each other be cranked outwards over the height of the rocker 18 and are recessed at the front or set back so far that the the console 16 mounted steering system its for work on carry out the necessary rotary movements unhindered can. To the mobile propulsion device compared to the supporting longitudinal forces occurring during dismantling work can them with the help of up through the roof panel 35 or else extendable punches inclined laterally upwards (not shown) 34 between the tunnel ceiling and sole. For the vertical stamp 34 are 33 guides on the side parts and provided stamp cylinder, not shown.

Zwischen den Seitenteilen 33 erstreckt sich eine am vorderen Ende mit einer Aufschubrampe 42 versehene Längsförderanlage 44, die in einem zur Aufnahme und Weitertransport des Grabgutes günstigen Neigungswinkel durch ein rückwärtiges Lager 36 am Fahrzeug 32 abgestützt ist und mit Hilfe von an den Seitenteilen angelenkten Zylindern 38 hochgezogen oder in ihrer Neigung verstellt werden kann.One extends at the front between the side parts 33 Longitudinal conveyor system 44 provided with a push-on ramp 42, which in one for receiving and transporting the grave favorable angle of inclination through a rear bearing 36 am Vehicle 32 is supported and with the help of on the side parts hinged cylinders 38 pulled up or in their inclination can be adjusted.

Fig. 9 als Frontansicht des fahrbaren Abbaubaggers im Zustand gemäß Fig. 4 zeigt einen seitlich oberhalb der einen Raupe und unterhalb der Dachplatte 35 angeordneter Fahrerstand 39 sowie eine aus zwei unter seitlichem Abstand zueinander angeordneten Schwingengliedern bestehende Schwinge 18, die an unter seitlichem Abstand von der Konsole 16 nach unten ragenden Ansätzen gelagert ist. Fig. 9 zeigt ferner die Seitenschilde 28 des Werkzeugträgers 26, den dazwischen gehaltenen Hydraulikhammer 27 sowie am äußeren Ende des Löffels 29 angeordnete Reißzähne, die sich oberhalb des Bandförderers 44 befinden, vor dem eine z.B. fächerförmig verbreiterbare Aufschubrampe 42 angeordnet ist.Fig. 9 as a front view of the mobile excavator in the state 4 shows a laterally above the one caterpillar and driver's stand 39 arranged below the roof panel 35 and one of two spaced from each other Swing members existing swing arm 18, the under side Distance from the console 16 downward projections is stored. Fig. 9 also shows the side plates 28 of the Tool carrier 26, the hydraulic hammer held between them 27 and fangs arranged at the outer end of the spoon 29, which are located above the belt conveyor 44, in front of the one e.g. Slide-open ramp 42 arranged in a fan-shaped manner is.

Mit einem Baggerfahrzeug nach Fig. 7-9 können auch enge Tunnel, Röhren oder unterirdische Kanalisationskanäle befahren werden, um dort beispielsweise alte Ausmauerungen abzuschlagen, Tunnelquerschnitte zu vergrößern oder Einstürze zu beseitigen. Wie für den Ausleger des Schildes kann auch für das Fahrzeug eine separate elektrische Fernbetätigung vorgesehen sein. Vom Fahrzeug 32 kann eine elektrisch betriebene Hydraulikanlage auf einem Anhänger nachgezogen werden, über den ein zusätzliches Förderband den Aushub weitertransportiert. Anstelle auf einem Raupenfahrwerk kann die Vortriebseinrichtung auf einem anderen Spezialfahrwerk angeordnet sein.With an excavator vehicle according to Fig. 7-9, narrow tunnels, Pipes or underground sewers are used, to cut off old brickwork, for example, tunnel cross-sections to enlarge or eliminate collapses. How for the arm of the shield can also be used for the vehicle separate electrical remote control can be provided. From the vehicle 32 can be an electrically operated hydraulic system a trailer, over which an additional Conveyor belt transported the excavation. Instead of one The crawler track can move the jacking device to another Special chassis can be arranged.

Claims (11)

  1. A hydraulic mining excavator for an underground propulsive means equipped with a longitudinal conveyance means for excavated material, with a boom, to one end of which an excavating tool is at least directly attachable, the other end being swivellable about a rotary mounting which has a vertical rotational axis and is disposed on an upper supporting member of the propulsive means, furthermore with at least one hydraulic cylinder for alteration of the boom inclination and at least one other hydraulic cylinder supported on the boom for operation of the excavating tool, which is swivellable about a transverse axis, characterised in that the boom (21) is hung on a console plate (16) fixed to the rotary mounting (15) via a driving system comprising a beam (18), pivotable by means of a hydraulic cylinder (19) and the hydraulic cylinder (20) for alteration of the boom inclination, which is adjustable by alteration of the length as a parallel driving means to the beam (18).
  2. A mining excavator according to claim 1, wherein as a beam (18), two beam members are provided, mounted on the console at a lateral distance to one another, each having a beam adjustment cylinder (19).
  3. A mining excavator according to claim 1 or 2, wherein two hydraulic cylinders (20), mounted on the console (16) at a lateral distance to one another, are provided for changing the boom inclination and are adjustable as parallel driving means to the beam (18).
  4. A mining excavator according to claim 1, wherein the length of the beam is dimensioned so that the horizontally-adjusted boom (21), in a beam end position which is swivelled to the front or to the rear, is at about half the height of the tunnel or the propulsive means.
  5. A mining excavator according to one of the preceding claims, wherein the boom (21) is swivellable upwards and downwards by approximately 30° in each case from its longitudinal position achievable by parallelogram setting of its swivelling cylinder (20).
  6. A mining excavator according to one of the preceding claims, wherein the propulsive means have a lower longitudinal conveyor system (44) which can be reached by the excavating tool.
  7. A mining excavator according to one of the preceding claims, wherein the propulsive means comprises a track-laying vehicle with a roof plate (36) on which the rotary mounting (15) is disposed.
  8. A mining excavator according to claim 7, wherein the track-laying under carriage (32) can be secured between the tunnel roof and the tunnel floor by means of props (34) which can be extended upwards through the roof plate (36) or laterally.
  9. A mining excavator according to claim 7, wherein the roof plate (35) is supported by lateral supporting walls (33) mounted on the track-laying under carriage, on which the longitudinal conveyor (44), which runs between them, is held with adjustable inclination.
  10. A mining excavator according to one of the preceding claims, wherein a tool-supporting unit (26) is provided with a scoop (pick, splitting tooth or similar) and a hydraulic hammer (cutter, drill or similar) in a front fork (23) of the boom (21), with a rotational axis located approximately centrally, and is swivellable by means of the hydraulic cylinder (25).
  11. A mining excavator according to one of claims 1 to 9, wherein at least one additional boom member (e.g. intermediate boom 52 and/or scoop stem 46) is attached in an articulatedly adjustable manner between the front end of the boom (21) and the excavating tool (48).
EP94115326A 1993-10-20 1994-09-29 Hydraulic excavator for shield tunneling machine Expired - Lifetime EP0649973B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4335753 1993-10-20
DE4335753A DE4335753C2 (en) 1993-10-20 1993-10-20 Hydraulically driven excavator for a jacking device for underground driving

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EP0649973A2 EP0649973A2 (en) 1995-04-26
EP0649973A3 EP0649973A3 (en) 1995-08-09
EP0649973B1 true EP0649973B1 (en) 1999-02-03

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JP (1) JPH07150892A (en)
KR (1) KR950011779A (en)
CN (1) CN1043918C (en)
AT (1) ATE176518T1 (en)
DE (2) DE4335753C2 (en)
ES (1) ES2128481T3 (en)

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CN1043918C (en) 1999-06-30
KR950011779A (en) 1995-05-16
DE59407767D1 (en) 1999-03-18
EP0649973A3 (en) 1995-08-09
EP0649973A2 (en) 1995-04-26
DE4335753C2 (en) 1998-07-09
DE4335753C1 (en) 1995-01-05
ES2128481T3 (en) 1999-05-16
CN1127322A (en) 1996-07-24
JPH07150892A (en) 1995-06-13
ATE176518T1 (en) 1999-02-15

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