EP0849403A1 - Cutting wheel apparatus for excavating trenches - Google Patents

Cutting wheel apparatus for excavating trenches Download PDF

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Publication number
EP0849403A1
EP0849403A1 EP97119286A EP97119286A EP0849403A1 EP 0849403 A1 EP0849403 A1 EP 0849403A1 EP 97119286 A EP97119286 A EP 97119286A EP 97119286 A EP97119286 A EP 97119286A EP 0849403 A1 EP0849403 A1 EP 0849403A1
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EP
European Patent Office
Prior art keywords
roller
cutting wheel
axis
milling
wheel
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Granted
Application number
EP97119286A
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German (de)
French (fr)
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EP0849403B1 (en
Inventor
Erwin Dipl.-Ing. Stötzer
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Bauer Spezialtiefbau GmbH
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Bauer Spezialtiefbau GmbH
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Publication of EP0849403A1 publication Critical patent/EP0849403A1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits

Definitions

  • the invention relates to a trench cutter according to the Preamble of claim 1.
  • Trench wall cutters are used to manufacture trench walls for building pit securing, sealing and foundations.
  • the invention has the object of providing a trench cutter with cylindrical Abtragwerkmaschineen whose bearings have a particularly long service life.
  • the roller axis is substantially radial is directed to the axis of rotation of the cutting wheel, and that a Shell surface of the roller on one facing away from the gear shield Face of the milling wheel opposite this in Protrudes in the direction of the axis of rotation of the milling wheel.
  • the roller can basically have a smooth surface be formed, so to a desired compression the side wall of the sunk slot leads.
  • a preferred one Embodiment is that the roller with removal devices, such as cutting teeth, is provided.
  • the roller is also used as a removal tool Ground breaking trained. There can be a slot with it well-defined walls.
  • the removal tools are roller chisels.
  • the removal tools are frustoconical are.
  • the respective Axis of rotation of the cylindrical removal tool from an axially parallel position to the axis of rotation of the milling wheel be, so that continue through the removal tools with the cutter wheel rotating, a cutter wheel cutting surface is formed that runs parallel to the axis of rotation of the milling wheel.
  • Another embodiment of the invention is that a total of four rollers are provided on a milling wheel, which are arranged distributed over the milling wheel at predetermined angular intervals.
  • the arrangement of several rollers reduces the load on the individual rollers.
  • the rollers are preferably offset from one another at a uniform angular distance or alternately at an angle of 60 ° and 120 ° .
  • a total of four milling wheels are provided, two of which are on one side of the shield are arranged.
  • FIG. 1 In the schematic view of Figure 1 is an inventive Trench wall cutter 10 with one of two shield walls 12, 13 constructed transmission shield 11 shown.
  • the Gear shield 11 is not in the usual way on one shown milling frame attached.
  • On both sides of the Gear shields 11 are each a milling wheel 20a and 20b arranged, which by a conventional drive device an essentially horizontally directed axis of rotation 21 are driven in rotation.
  • inner roller bits 22 and outer roller chisel 23 provided as removal tools.
  • the inner roller chisel 22 and the outer roller chisel 23 have truncated cone-shaped roller bodies on the outer surface Removal devices 28 are attached.
  • the inner roller chisels 22 and the outer roller chisel 23 by means of a star arranged brackets on the circumference of the milling wheels 20a, 20b rotatably held.
  • the axes 24 of the inner roller chisel 22 and the axes 25 of the outer roller chisel 23 are substantially axially parallel to the axis of rotation 21 of the Milling wheel 20a, 20b, depending on the taper angle frustoconical roller body of the inner roller chisel 22 or outer roller chisel 23 a certain angle is provided.
  • the angle adjustment is included chosen so that the roller chisel when the cutter wheel 20a, 20b is rotating 22, 23 a ground-contacting cutting wheel cutting surface form, which are essentially axially parallel to the axis of rotation 21 of the milling wheel 20a, 20b.
  • the touch surfaces the enveloping surfaces of the outer roller bits 23 and Envelope surface of the slot 41 are substantially parallel to each other and parallel to the axis of rotation 21 of the milling wheels 20a, 20b arranged.
  • roller axes 27 are essentially radial to the axis of rotation 21 of the milling wheel 20a, 20b and parallel to the shield walls 12, 13 of the gear shield 11 directed.
  • the rollers 26 are star-shaped on the corresponding Milling wheel hub arranged brackets attached so that a The lateral surface of the roller 26 continues in the horizontal direction protrudes from the gear shield 11 as the peripheral surface the outer roller chisel 23. So while the outer roller chisel 23 first a slot at a predetermined Milling width with a side wall 43, this is by the Rollers 26 provided with a widening 44. The broadening 44 depends on how far the rollers 26 face each other protrude the outer roller bits 23. In the shown Embodiment are the rollers 26 themselves with removal devices, such as milling teeth, which are only indicated schematically.
  • each milling wheel 20a, 20b to absorb the lateral forces.
  • the total of four rollers 26 are alternately distributed at an angular distance of 60 o and 120 o over the circumference of the milling wheel 20a, 20b.
  • This arrangement is the same for both opposing milling wheels 20a, 20b, the opposing milling wheels 20a, 20b being arranged rotated relative to one another on the axis of rotation 21, in order to ensure particularly good support for the trench wall cutter 10 in the sunk slot 41.
  • the described embodiment according to the invention has a total of four milling wheels, which are arranged side by side in pairs.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Road Repair (AREA)
  • Earth Drilling (AREA)
  • Knives (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Dicing (AREA)
  • Shovels (AREA)

Abstract

The invention relates to a trench wall cutter with a cutting frame and a gear shield attached thereto. There is at least one cutting wheel positioned to turn on the opposite shield sides, and on it roller-shaped excavation tools distributed over the periphery are pivotally mounted. When the cutting wheel is rotating the tools form a cutting wheel cutting surface which runs essentially axially parallel to the axis of rotation of the cutting wheel. To accommodate horizontal forces, at least one additional roller is pivotally mounted on each cutting wheel, the axis of the additional roller being directed substantially radially with respect to the axis of rotation of the cutting wheel. One jacket surface of the roller on the radial face side of the cutting wheel away from the gear shield projects in the direction of the axis of rotation of the-cutting wheel.

Description

Die Erfindung betrifft eine Schlitzwandfräse gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a trench cutter according to the Preamble of claim 1.

Schlitzwandfräsen dienen zur Herstellung von Schlitzwänden für Baugrubensicherungen, Abdichtungen und Gründungen.Trench wall cutters are used to manufacture trench walls for building pit securing, sealing and foundations.

Aus der DE-C 39 33 168 ist eine Schlitzwandfräse mit einem Fräsrahmen und einem daran angebrachten Getriebeschild bekannt. An den gegenüberliegenden Schildseiten ist jeweils mindestens ein Fräsrad drehbar angeordnet, an welchem über den Umfang verteilt walzenförmige Abtragwerkzeuge drehbar gelagert sind. Diese bilden bei rotierendem Fräsrad eine Fräsradschneidfläche, die im wesentlichen achsparallel zur Drehachse des Fräsrades verläuft.From DE-C 39 33 168 is a trench cutter with a Milling frame and a gear plate attached to it known. Is on the opposite sides of the shield at least one milling wheel arranged rotatably, on which the circumference is distributed rotatable removal tools are stored. These form one when the cutter wheel is rotating Milling wheel cutting surface, which is essentially axially parallel to The axis of rotation of the milling wheel runs.

Mit einer derartigen Schlitzwandfräse ist auch bei hoher Gesteinsfestigkeit ein guter Bohrfortschritt und ein guter Freischnitt der Fräsräder erreichbar. Beim Fräsen in einem abgeteuften Schlitz treten große Kräfte auf, die zum sogenannten "Springen" der gesamten Schlitzwandfräse in dem Schlitz führen können. Hierbei werden die Fräsräder mit sehr hohen seitlichen Kräften beaufschlagt, die durch die seitlichen, walzenförmigen Abtragwerkzeuge auf die Fräsräder übertragen werden müssen. Bei diesem Vorgang entsteht erheblicher Verschleiß an den Radiallagern der walzenförmigen Abtragwerkzeuge. With such a trench cutter, even at high Rock strength a good drilling progress and a good one Free cutting of the cutting wheels accessible. When milling in one sunk slot, large forces occur, the so-called "Jumping" of the entire trench cutter in the Can lead slot. Here, the milling wheels with very high lateral forces caused by the lateral, roller-shaped removal tools on the milling wheels must be transferred. In this process arises considerable wear on the radial bearings of the roller-shaped Removal tools.

Der Erfindung liegt die Aufgabe zugrunde, eine Schlitzwandfräse mit walzenförmigen Abtragwerkzeugen bereitzustellen, deren Lager eine besonders hohe Lebensdauer erreichen.The invention has the object of providing a trench cutter with cylindrical Abtragwerkzeugen whose bearings have a particularly long service life.

Ausgehend von einer gattungsgemäßen Schlitzwandfräse wird die Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.Starting from a generic trench cutter the task through the characteristic features of the Claim 1 solved.

Bei der erfindungsgemäßen Schlitzwandfräse ist vorgesehen, daß zusätzlich an jedem Fräsrad mindestens eine Walze drehbar gelagert ist, deren Walzenachse im wesentlichen radial zur Drehachse des Fräsrades gerichtet ist, und daß eine Mantelfläche der Walze an einer von dem Getriebeschild ab-gewandten Stirnseite des Fräsrades gegenüber dieser in Richtung der Drehachse des Fräsrades vorsteht.In the trench cutter according to the invention, that additionally at least one roller can be rotated on each milling wheel is mounted, the roller axis is substantially radial is directed to the axis of rotation of the cutting wheel, and that a Shell surface of the roller on one facing away from the gear shield Face of the milling wheel opposite this in Protrudes in the direction of the axis of rotation of the milling wheel.

Durch die Anordnung dieser zusätzlichen Walzen erfolgt eine seitliche Führung und Abstützung der Schlitzwandfräse in dem abgeteuften Schlitz. Beim "Springen" der Schlitzwandfräse werden die auftretenden seitlichen Kräfte von diesen Walzen aufgenommen. Die walzenförmigen Abtragwerkzeuge werden folglich von den seitlichen Kräften entlastet, so daß kaum noch Axialkräfte auf die Radiallager der Abtragwerkzeuge einwirken. Durch die Reduktion der für Radiallager besonders belastenden Axialkräfte wird eine erhebliche Verringerung des Verschleißes dieser Lager erreicht. Dies hat eine Verminderung des Wartungsaufwandes und eine Erhöhung der Betriebsdauer der Schlitzwandfräse zur Folge.The arrangement of these additional rollers results in a lateral guidance and support of the trench cutter in the sunk slot. When "jumping" the trench cutter the lateral forces that arise from these Rolls added. The roller-shaped removal tools are therefore relieved of the lateral forces, so that there are hardly any axial forces on the radial bearings of the removal tools act. By reducing the for radial bearings particularly stressful axial forces becomes a considerable one Reduction in wear of these bearings achieved. This has a reduction in maintenance and one Increase the operating time of the trench cutter.

Die Walze kann grundsätzlich mit einer glatten Mantelfläche ausgebildet sein, die so zu einer erwünschten Verdichtung der Seitenwand des abgeteuften Schlitzes führt. Eine bevorzugte Ausführungsform besteht jedoch darin, daß die Walze mit Abtrageinrichtungen, wie Schneidzähnen, versehen ist. Die Walze ist dabei ebenfalls als ein Abtragwerkzeug zum Brechen des Bodens ausgebildet. Es kann so ein Schlitz mit genau definierten Wänden abgeteuft werden.The roller can basically have a smooth surface be formed, so to a desired compression the side wall of the sunk slot leads. A preferred one Embodiment, however, is that the roller with removal devices, such as cutting teeth, is provided. The roller is also used as a removal tool Ground breaking trained. There can be a slot with it well-defined walls.

Ein besonders guter Bohrfortschritt wird dadurch erreicht, daß die Abtragwerkzeuge Rollenmeißel sind.Particularly good drilling progress is achieved that the removal tools are roller chisels.

Gemäß einer weiteren Ausführungsform der Erfindung ist es vorteilhaft, daß die Abtragwerkzeuge kegelstumpfförmig ausgebildet sind. Entsprechend dem Kegelwinkel kann die jeweilige Drehachse des walzenförmigen Abtragwerkzeuges von einer achsparallelen Lage zur Drehachse des Fräsrades angewinkelt werden, so daß durch die Abtragwerkzeuge weiterhin bei rotierendem Fräsrad eine Fräsradschneidfläche gebildet wird, die achsparallel zur Drehachse des Fräsrades verläuft. Bei angewinkelter Drehachse der walzenförmigen Abtragwerkzeuge können deren Radiallager in gewissem Umfang seitlichen Kräften besser standhalten. Seitlich reicht die Walze mindestens so weit weg vom Getriebeschild wie die seitlich äußeren Abtragwerkzeuge.According to a further embodiment of the invention it is advantageous that the removal tools are frustoconical are. Depending on the cone angle, the respective Axis of rotation of the cylindrical removal tool from an axially parallel position to the axis of rotation of the milling wheel be, so that continue through the removal tools with the cutter wheel rotating, a cutter wheel cutting surface is formed that runs parallel to the axis of rotation of the milling wheel. With angled axis of rotation of the roller-shaped removal tools can their radial bearings to some extent better withstand lateral forces. That is enough on the side Roll at least as far from the gear shield as that lateral removal tools.

Eine weitere erfindungsgemäße Ausführungsform besteht darin, daß insgesamt vier Walzen an einem Fräsrad vorgesehen sind, die über das Fräsrad in vorgegebenen Winkelabständen verteilt angeordnet sind. Durch die Anordnung mehrerer Walzen wird die Belastung der einzelnen Walze reduziert. Vorzugsweise sind die Walzen in einem gleichmäßigen Winkelabstand oder wechselweise in einem Winkel von 60o und 120o zueinander versetzt.Another embodiment of the invention is that a total of four rollers are provided on a milling wheel, which are arranged distributed over the milling wheel at predetermined angular intervals. The arrangement of several rollers reduces the load on the individual rollers. The rollers are preferably offset from one another at a uniform angular distance or alternately at an angle of 60 ° and 120 ° .

Für eine besonders gute Kraftverteilung bei guter Bohrleistung ist es vorteilhaft, daß insgesamt vier Fräsräder vorgesehen sind, von denen jeweils zwei auf einer Schildseite angeordnet sind. For particularly good power distribution with good drilling performance it is advantageous that a total of four milling wheels are provided, two of which are on one side of the shield are arranged.

Die Erfindung wird weiter anhand eines Ausführungsbeispieles erläutert, welches in der Zeichnung dargestellt ist. In dieser zeigen:

Fig. 1
eine ausschnittweise Seitenansicht einer erfindungsgemäßen Schlitzwandfräse in einem abgeteuften Schlitz; und
Fig. 2
eine Vorderansicht des in Figur 1 gezeigten Teils einer erfindungsgemäßen Schlitzwandfräse.
The invention is further explained using an exemplary embodiment which is illustrated in the drawing. In this show:
Fig. 1
a partial side view of a trench cutter according to the invention in a sunk slot; and
Fig. 2
a front view of the part shown in Figure 1 of a trench cutter according to the invention.

In der schematischen Ansicht von Figur 1 ist eine erfindungsgemäße Schlitzwandfräse 10 mit einem aus zwei Schildwänden 12, 13 aufgebauten Getriebeschild 11 gezeigt. Das Getriebeschild 11 ist in üblicher Weise an einem nicht dargestellten Fräsrahmen befestigt. Zu beiden Seiten des Getriebeschildes 11 sind je ein Fräsrad 20a und 20b angeordnet, welche durch eine übliche Antriebseinrichtung um eine im wesentlichen horizontal gerichtete Drehachse 21 rotierend angetrieben sind.In the schematic view of Figure 1 is an inventive Trench wall cutter 10 with one of two shield walls 12, 13 constructed transmission shield 11 shown. The Gear shield 11 is not in the usual way on one shown milling frame attached. On both sides of the Gear shields 11 are each a milling wheel 20a and 20b arranged, which by a conventional drive device an essentially horizontally directed axis of rotation 21 are driven in rotation.

Zum Abtragen eines Bodens 40 beim Abteufen eines Schlitzes 41 sind an jedem Fräsrad 20a, 20b innere Rollenmeißel 22 und äußere Rollenmeißel 23 als Abtragwerkzeuge vorgesehen. Die inneren Rollenmeißel 22 und die äußeren Rollenmeißel 23 weisen kegelstumpfförmige Rollenkörper auf, an deren Mantelfläche Abtrageinrichtungen 28 angebracht sind.For removing a floor 40 when sinking a slot 41 are on each cutter wheel 20a, 20b inner roller bits 22 and outer roller chisel 23 provided as removal tools. The inner roller chisel 22 and the outer roller chisel 23 have truncated cone-shaped roller bodies on the outer surface Removal devices 28 are attached.

Wie aus Figur 2 ersichtlich ist, sind die inneren Rollenmeißel 22 und die äußeren Rollenmeißel 23 mittels sternförmig angeordneten Halterungen am Umfang der Fräsräder 20a, 20b drehbar gehalten. Die Achsen 24 der inneren Rollenmeißel 22 und die Achsen 25 der äußeren Rollenmeißel 23 sind im wesentlichen achsparallel zur Drehachse 21 des Fräsrades 20a, 20b, wobei abhängig vom Kegelwinkel der kegelstumpfförmigen Rollenkörper der inneren Rollenmeissel 22 bzw. äußeren Rollenmeißel 23 eine gewisse Winkelanstellung vorgesehen ist. Die Winkelanstellung ist dabei so gewählt, daß bei rotierendem Fräsrad 20a, 20b die Rollenmeißel 22, 23 eine bodenkontaktierende Fräsradschneidfläche bilden, die im wesentlichen achsparallel zur Drehachse 21 des Fräsrades 20a, 20b verläuft. Die Berührungsflächen der Hüllflächen der äußeren Rollenmeißel 23 und der Hüllfläche des Schlitzes 41 sind im wesentlichen parallel zueinander und parallel zur Drehachse 21 der Fräsräder 20a, 20b angeordnet.As can be seen from Figure 2, the inner roller chisels 22 and the outer roller chisel 23 by means of a star arranged brackets on the circumference of the milling wheels 20a, 20b rotatably held. The axes 24 of the inner roller chisel 22 and the axes 25 of the outer roller chisel 23 are substantially axially parallel to the axis of rotation 21 of the Milling wheel 20a, 20b, depending on the taper angle frustoconical roller body of the inner roller chisel 22 or outer roller chisel 23 a certain angle is provided. The angle adjustment is included chosen so that the roller chisel when the cutter wheel 20a, 20b is rotating 22, 23 a ground-contacting cutting wheel cutting surface form, which are essentially axially parallel to the axis of rotation 21 of the milling wheel 20a, 20b. The touch surfaces the enveloping surfaces of the outer roller bits 23 and Envelope surface of the slot 41 are substantially parallel to each other and parallel to the axis of rotation 21 of the milling wheels 20a, 20b arranged.

Um eine Belastung der Radiallager der Rollenmeißel 22, 23 durch horizontal gerichtete Kräfte, welche beim sognenannten "Springen" der Schlitzwandfräse in dem abgeteuften Schlitz 41 auftreten können, weitgehend zu vermeiden, sind an jedem Fräsrad 20a, 20b an deren äußeren Stirnseiten 29 Walzen 26 gelagert. Deren Walzenachsen 27 sind im wesentlichen radial zur Drehachse 21 des Fräsrades 20a, 20b und parallel zu den Schildwänden 12, 13 des Getriebeschildes 11 gerichtet.In order to load the radial bearings of the roller chisels 22, 23 by horizontally directed forces, which in the so-called "Jumping" of the trench cutter in the sunk Slit 41 can occur, are to be largely avoided on each milling wheel 20a, 20b on the outer end faces 29 thereof Rollers 26 stored. Their roller axes 27 are essentially radial to the axis of rotation 21 of the milling wheel 20a, 20b and parallel to the shield walls 12, 13 of the gear shield 11 directed.

Die Walzen 26 sind über entsprechende sternförmig an der Fräsradnabe angeordnete Halterungen so angebracht, daß eine Mantelfläche der Walze 26 in horizontaler Richtung weiter vom Getriebeschild 11 weg vorsteht als die Umfangsfläche der äußeren Rollenmeißel 23. Während also die äußeren Rollenmeißel 23 zunächst einen Schlitz bei einer vorgegebenen Breite mit einer Seitenwand 43 fräsen, wird diese durch die Walzen 26 mit einer Verbreiterung 44 versehen. Die Verbreiterung 44 ist davon abhängig, wie weit die Walzen 26 gegenüber den äußeren Rollenmeißeln 23 vorstehen. Bei der gezeigten Ausführungsform sind die Walzen 26 selbst mit Abtrageinrichtungen, wie beispielsweise Fräszähnen, versehen, die lediglich schematisch angedeutet sind. The rollers 26 are star-shaped on the corresponding Milling wheel hub arranged brackets attached so that a The lateral surface of the roller 26 continues in the horizontal direction protrudes from the gear shield 11 as the peripheral surface the outer roller chisel 23. So while the outer roller chisel 23 first a slot at a predetermined Milling width with a side wall 43, this is by the Rollers 26 provided with a widening 44. The broadening 44 depends on how far the rollers 26 face each other protrude the outer roller bits 23. In the shown Embodiment are the rollers 26 themselves with removal devices, such as milling teeth, which are only indicated schematically.

An jedem Fräsrad 20a, 20b sind vier Walzen 26 zur Aufnahme der seitlichen Kräfte vorgesehen. Die insgesamt vier Walzen 26 sind abwechselnd in einem Winkelabstand von 60o und 120o über den Umfang des Fräsrades 20a, 20b verteilt. Diese Anordnung ist bei beiden gegenüberliegenden Fräsrädern 20a, 20b gleich, wobei die gegenüberliegenden Fräsräder 20a, 20b auf der Drehachse 21 zueinander verdreht angeordnet sind, um so eine besonders gute Abstützung der Schlitzwandfräse 10 in dem abgeteuften Schlitz 41 zu gewährleisten. Obwohl nur zwei Fräsräder 20a, 20b dargestellt sind, weist die beschriebene erfindungsgemäße Ausführungsform insgesamt vier Fräsräder auf, die paarweise gegenüber-liegend nebeneinander angeordnet sind.Four rollers 26 are provided on each milling wheel 20a, 20b to absorb the lateral forces. The total of four rollers 26 are alternately distributed at an angular distance of 60 o and 120 o over the circumference of the milling wheel 20a, 20b. This arrangement is the same for both opposing milling wheels 20a, 20b, the opposing milling wheels 20a, 20b being arranged rotated relative to one another on the axis of rotation 21, in order to ensure particularly good support for the trench wall cutter 10 in the sunk slot 41. Although only two milling wheels 20a, 20b are shown, the described embodiment according to the invention has a total of four milling wheels, which are arranged side by side in pairs.

Durch die Anordnung der zusätzlichen Walzen 26, deren Berührungsflächen der Hüllflächen mit der Hüllfläche des Schlitzes 41 im wesentlichen parallel zur Seitenwand 43 des Schlitzes 41 verlaufen, wird eine vorteilhafte Kraftaufteilung an den Fräsrädern 20a, 20b erreicht. So werden die horizontalen Kräfte durch die Walzen 26 aufgenommen, während die vertikalen Kräfte vorallem durch die äußeren Rollenmeißel 23 aufgefangen werden.By arranging the additional rollers 26, the Contact surfaces of the enveloping surfaces with the enveloping surface of the Slot 41 substantially parallel to the side wall 43 of the Slit 41 run, an advantageous distribution of forces reached on the cutting wheels 20a, 20b. So the horizontal ones Forces absorbed by the rollers 26 while the vertical forces mainly through the outer roller chisels 23 can be caught.

Claims (6)

Schlitzwandfräse mit einem Fräsrahmen und einem daran angebrachten Getriebeschild (11), an dessen gegenüberliegenden Schildseiten (12, 12) jeweils mindestens ein Fräsrad (20a, 20b) drehbar angeordnet ist, an welchem über den Umfang verteilt walzenförmige Abtragwerkzeuge (22, 23) drehbar gelagert sind, die bei rotierendem Fräsrad (20a, 20b) eine Fräsradschneidfläche bilden, die im wesentlichen achsparallel zur Drehachse (21) des Fräsrades (20a, 20b) verläuft,
dadurch gekennzeichnet, daß zusätzlich an jedem Fräsrad (20a, 20b) mindestens eine Walze (26) drehbar gelagert ist, deren Walzenachse (27) im wesentlichen radial zur Drehachse (21) des Fräsrades (20a, 20b) gerichtet ist, und daß eine Mantelfläche der Walze (26) an einer von dem Getriebeschild (11) abgewandten Stirnseite (29) des Fräsrades (20a, 20b) gegenüber dieser in Richtung der Drehachse (21) des Fräsrades (20a, 20b) vorsteht. Trench cutter with a milling frame and a gear plate (11) attached to it, at least one milling wheel (20a, 20b) is rotatably arranged on the opposite sides of the shield (12, 12) thereof, on which roller-shaped removal tools (22, 23) distributed over the circumference are rotatably mounted, which, when the cutting wheel (20a, 20b) rotates, form a cutting wheel cutting surface which runs essentially axially parallel to the axis of rotation (21) of the cutting wheel (20a, 20b),
characterized by that in addition, at least one roller (26) is rotatably mounted on each milling wheel (20a, 20b), the roller axis (27) of which is directed essentially radially to the axis of rotation (21) of the milling wheel (20a, 20b), and that a lateral surface of the roller (26) on an end face (29) of the milling wheel (20a, 20b) facing away from the gear plate (11) protrudes relative to the latter in the direction of the axis of rotation (21) of the milling wheel (20a, 20b). Schlitzwandfräse nach Anspruch 1,
dadurch gekennzeichnet,
daß die Walze (26) mit Abtrageinrichtungen versehen ist.Trench cutter according to claim 1,
characterized by
that the roller (26) is provided with removal devices. Schlitzwandfräse nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Abtragwerkzeuge (22, 23) Rollenmeißel sind.Trench wall cutter according to claim 1 or 2,
characterized by
that the removal tools (22, 23) are roller chisels. Schlitzwandfräse nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Abtragwerkzeuge (22, 23) kegelstumpfförmig ausgebildet sind.Trench wall cutter according to one of claims 1 to 3,
characterized by
that the removal tools (22, 23) are frustoconical. Schlitzwandfräse nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß insgesamt vier Walzen (26) an einem Fräsrad (20a, 20b) vorgesehen sind, die über das Fräsrad (20a, 20b) in vorgegebenen Winkelabständen verteilt angeordnet sind.Trench wall cutter according to one of claims 1 to 4,
characterized by
that a total of four rollers (26) are provided on a milling wheel (20a, 20b) which are distributed over the milling wheel (20a, 20b) at predetermined angular intervals. Schlitzwandfräse nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß insgesamt vier Fräsräder (20a, 20b) vorgesehen sind, von denen jeweils zwei auf einer Schildseite (12, 13) angeordnet sind.Trench wall cutter according to one of claims 1 to 5,
characterized by
that a total of four milling wheels (20a, 20b) are provided, two of which are each arranged on a shield side (12, 13).
EP97119286A 1996-12-18 1997-11-04 Cutting wheel apparatus for excavating trenches Expired - Lifetime EP0849403B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19652835A DE19652835C1 (en) 1996-12-18 1996-12-18 Subterranean cutter dredger
DE19652835 1996-12-18

Publications (2)

Publication Number Publication Date
EP0849403A1 true EP0849403A1 (en) 1998-06-24
EP0849403B1 EP0849403B1 (en) 2000-09-13

Family

ID=7815242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119286A Expired - Lifetime EP0849403B1 (en) 1996-12-18 1997-11-04 Cutting wheel apparatus for excavating trenches

Country Status (13)

Country Link
US (1) US5924222A (en)
EP (1) EP0849403B1 (en)
JP (1) JP2971425B2 (en)
KR (2) KR19980064285A (en)
CN (1) CN1070972C (en)
AT (1) ATE196336T1 (en)
DE (2) DE19652835C1 (en)
HK (1) HK1010899A1 (en)
ID (1) ID19690A (en)
MY (1) MY120217A (en)
SG (1) SG77616A1 (en)
TW (1) TW384334B (en)
ZA (1) ZA9710949B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849662B1 (en) * 2003-01-08 2005-11-04 Cie Du Sol DRUM FOR STRAW USED IN PARTICULAR FOR THE PRODUCTION OF VERTICAL TRENCHES IN HARD OR VERY HARD SOILS
DE10308539B3 (en) 2003-02-27 2004-06-03 Bauer Maschinen Gmbh Cutting device for cutting grooves in the ground comprises cutting elements arranged on the cutting wheels to remove soil using a rotary action
DE10308538C5 (en) * 2003-02-27 2014-11-06 Bauer Maschinen Gmbh Method of making a trench wall in the ground, trench wall cutter and trench wall cutter
CN1252492C (en) 2003-12-25 2006-04-19 周仁安 Measuring method and instrument for earth electromagnetic wave resistivity
ATE384169T1 (en) * 2004-08-23 2008-02-15 Bauer Maschinen Gmbh METHOD AND SLOT WALL MILLING DEVICE FOR PRODUCING A SLOT WALL IN THE GROUND
BE1016461A3 (en) * 2005-02-22 2006-11-07 Dredging Int CUTTING HEAD FOR DAGGING GROUND AND METHOD FOR DAGGING USING THIS CUTTING HEAD.
DE102006040881A1 (en) * 2006-08-31 2008-03-06 Ulrich Bechem Device for removing rocks and other materials
SE533284C2 (en) * 2008-10-31 2010-08-10 Atlas Copco Rock Drills Ab Method, rotatable cutting head, device and rig for driving tunnels, places, shafts or the like
FR2957948B1 (en) * 2010-03-26 2013-07-05 Soletanche Freyssinet DRUM FOR MIXING TOOL.
DE202011050144U1 (en) * 2011-05-16 2012-08-17 Caterpillar Global Mining Europe Gmbh Device for the milling of rocks, minerals or other materials
DE202011050143U1 (en) * 2011-05-16 2012-08-23 Caterpillar Global Mining Europe Gmbh Extraction device for the degradation of fl ockly or massively deposited mineral materials and extraction machine therefor
DE202011050146U1 (en) * 2011-05-16 2012-08-23 Caterpillar Global Mining Europe Gmbh Device for the milling of rocks, minerals or other materials
EP2636799B1 (en) * 2012-03-05 2014-05-14 Bauer Spezialtiefbau GmbH Drilling tool for making a subterraneous curtain wall and method of making such wall
KR101963874B1 (en) * 2013-01-29 2019-03-29 파우에스엘 인터나치오날 엘티디 Hydromill wheel with single disc cutting rollers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548284A (en) * 1983-10-28 1985-10-22 Dresser Industries, Inc. Roller ball retention of reamer cutter assembly
JPS61169529A (en) * 1985-01-23 1986-07-31 Taisei Corp Excavator for continuous wall
DE3933168A1 (en) * 1988-10-14 1990-04-19 Bauer Spezialtiefbau Slit wall cutter with counter-rotating cutter wheels - which have rolling tools on their peripheries, overhung in bearings

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999616A (en) * 1975-02-03 1976-12-28 The Robbins Company Method and apparatus for establishing the drilling line of an overhead boring machine
US4189186A (en) * 1978-06-12 1980-02-19 Jarva, Inc. Tunneling machine
US4548442A (en) * 1983-12-06 1985-10-22 The Robbins Company Mobile mining machine and method
US5035071A (en) * 1988-10-14 1991-07-30 Bauer Spezialtiefbau Gmbh Trench wall cutter
US5205612A (en) * 1990-05-17 1993-04-27 Z C Mines Pty. Ltd. Transport apparatus and method of forming same
US5125719A (en) * 1991-03-29 1992-06-30 Larry Snyder Tunnel boring machine and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548284A (en) * 1983-10-28 1985-10-22 Dresser Industries, Inc. Roller ball retention of reamer cutter assembly
JPS61169529A (en) * 1985-01-23 1986-07-31 Taisei Corp Excavator for continuous wall
DE3933168A1 (en) * 1988-10-14 1990-04-19 Bauer Spezialtiefbau Slit wall cutter with counter-rotating cutter wheels - which have rolling tools on their peripheries, overhung in bearings

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 378 (M - 546)<2435> 17 December 1986 (1986-12-17) *

Also Published As

Publication number Publication date
CN1070972C (en) 2001-09-12
DE59702343D1 (en) 2000-10-19
KR100248603B1 (en) 2000-03-15
ATE196336T1 (en) 2000-09-15
DE19652835C1 (en) 1998-03-26
CN1185508A (en) 1998-06-24
ZA9710949B (en) 1998-06-15
SG77616A1 (en) 2001-01-16
KR19980064285A (en) 1998-10-07
JPH10183681A (en) 1998-07-14
EP0849403B1 (en) 2000-09-13
JP2971425B2 (en) 1999-11-08
ID19690A (en) 1998-07-30
US5924222A (en) 1999-07-20
TW384334B (en) 2000-03-11
MY120217A (en) 2005-09-30
HK1010899A1 (en) 1999-07-02

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