EP1580327B1 - Slotted wall milling cutter - Google Patents

Slotted wall milling cutter Download PDF

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Publication number
EP1580327B1
EP1580327B1 EP04007475A EP04007475A EP1580327B1 EP 1580327 B1 EP1580327 B1 EP 1580327B1 EP 04007475 A EP04007475 A EP 04007475A EP 04007475 A EP04007475 A EP 04007475A EP 1580327 B1 EP1580327 B1 EP 1580327B1
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EP
European Patent Office
Prior art keywords
rotation
cutting wheels
trench cutter
drive
cutter according
Prior art date
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
EP04007475A
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German (de)
French (fr)
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EP1580327A1 (en
Inventor
Maximilian Arzberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Maschinen GmbH
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Bauer Maschinen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP04007475A priority Critical patent/EP1580327B1/en
Priority to DE502004007221T priority patent/DE502004007221D1/en
Priority to KR1020050022209A priority patent/KR100661593B1/en
Priority to RU2005107742/03A priority patent/RU2295003C2/en
Priority to US11/098,654 priority patent/US7497038B2/en
Priority to JP2005088636A priority patent/JP4046737B2/en
Priority to CNB2005100627502A priority patent/CN100357529C/en
Publication of EP1580327A1 publication Critical patent/EP1580327A1/en
Application granted granted Critical
Publication of EP1580327B1 publication Critical patent/EP1580327B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/246—Digging wheels; Digging elements of wheels; Drives for wheels drives
    • 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

Definitions

  • the invention relates to a trench cutter with at least two pairs of cutting wheels, which are rotatable about a first axis of rotation and a second axis of rotation, wherein the two axes of rotation are offset from each other.
  • the two pairs of cutting wheels are each set in rotation by a separate drive motor via a corresponding gear arrangement.
  • Another generic trench cutter is from the EP-A-0 811 724 known.
  • the milling frame suspended on a device has an anchoring part with positioning and anchoring skids and a lifting tool which can be extended by hydraulic cylinders.
  • At the lower end of the support tool are mounted on mutually offset, driven by a respective hydraulic motor axes Fräsradpare.
  • the cutting wheels are lying each in one plane and rotate in the opposite direction.
  • a suction generated by a hydraulic pump the decomposition material is sucked in halfway and in the middle between the staggered cutting wheels and transported via hoses upwards.
  • a hammer drill for making slot holes using a jet aspirator will be described.
  • the device has the same length, counter-driven rod assemblies, which are combined by a provided with wall guide elements bridge connection to a unit.
  • Each drill string is assigned a drill bit and each in the strand inside the cuttings are promoted high.
  • a drive motor arranged on the bridge drives a transmission which distributes drive torque to a plurality of drill bits.
  • the invention has for its object to provide a trench cutter, which ensures a reliable milling operation in a simple and compact structure.
  • the trench wall cutter according to the invention is characterized in that a single drive motor is provided which via a gear arrangement which drives at least two cutting wheels or pairs of cutting wheels together.
  • a common drive and a common gear arrangement also allow forced synchronization of the cutting wheels. This allows the transverse to the axis of rotation juxtaposed milling wheels arranged closer together. This results in a particularly compact trench wall cutter with good material removal, in which the risk of getting stuck within the slot is significantly reduced.
  • gear arrangement has a sun gear, which is arranged substantially centrally between the two mutually offset axes of rotation. This results in a symmetrical torque introduction, which allows a particularly uniform torque distribution.
  • a particular compact gear arrangement according to the invention is achieved in that the two pairs of cutting wheels each have a common drive train, which are driven by the sun gear.
  • a particularly good torque distribution in a compact design is achieved according to the invention in that the drive trains are arranged at an acute angle to the axis of the sun gear.
  • the drive trains form with the sun gear an arrangement in the form of an inverted Y, wherein the drive trains are arranged above the axes of rotation of the cutting wheels and directed upward.
  • the acute angle is preferably between 15 ° and 60 °, in particular 45 °.
  • the drive trains are arranged approximately at a right angle to each other.
  • the drive trains each have at least one transmission gear. Under gear transmission is understood, of course, a reduction. It can be done directly on the cutting wheels so a desired torque conversion.
  • the drive trains in the arrangement of Fräsradcruen also each have a distribution gear, which distributes the torque of the drive train in equal parts on the cutting wheels along the same axis of rotation.
  • radially projecting cutting teeth are provided on the cutting wheels or cutting wheel pairs, which are arranged intermeshing in operation. Due to the achievable with the invention forced synchronization of juxtaposed cutting wheels they can be arranged so close to each other that the cutting teeth mesh with each other safely. In this way, a uniformly high removal rate can be achieved over the entire milling cross section.
  • a particularly good and maintenance-friendly embodiment of the invention is given by the fact that the drive motor and the gear arrangement are arranged in a milling housing.
  • the trench wall cutter is attached to a telescopic linkage and that the thickness of the milling housing in the direction of the axes of rotation is less than or equal to the maximum diameter of the telescopic linkage.
  • the compact trench cutter according to the invention can be performed by a telescopic linkage. Due to the compact design of the milling housing according to the invention, which does not protrude beyond the maximum diameter of the telescopic linkage in the direction of the axes of rotation, the risk of jamming of the trench wall cutter in the slot is drastically reduced.
  • a main drive shaft is arranged between the drive motor and the sun gear.
  • the main drive shaft can each have at its two ends in each case curved toothings, which are arranged in meshing manner in corresponding toothed sleeves of the drive motor or of the sun gear.
  • a trench wall cutter 10 according to the invention shows two cutting wheels 12, 14, on whose outer circumference a plurality of cutting teeth 20 are arranged.
  • the cutting wheels 12, 13 each belong to a cutting wheel pair, wherein the rear cutting wheel is not shown.
  • the left-side cutting wheel 12 of a pair of cutting wheels rotates about a first axis of rotation 16, while the right-side cutting wheel 14 of the other pair of cutting wheels rotates about a second axis of rotation 18.
  • the two axes of rotation 16, 18 are offset in a transverse direction to each other by a predetermined distance.
  • the left-side cutting wheel 12 is driven in the clockwise direction, while the right-side cutting wheel 14 is driven in the counterclockwise direction.
  • the drive torque via a gear assembly 30 to the cutting wheels 12, 14 and their Fräsradforme transmitted.
  • the torque is transmitted via a partially shown main drive shaft 36 to a sun gear 32.
  • the main drive shaft 36 has for this purpose at its lower end a curved toothing 37, which is arranged in a corresponding toothed sleeve at the upper end of the sun gear 32.
  • the sun gear 32 has an axis 33 which is approximately perpendicular to the axes of rotation 16, 18 of the cutting wheels 12, 14 directed and arranged centrally thereto.
  • the torque is transmitted in a combing connection via the plate gears 42, 52 on the drive lines 40, 50 for the cutting wheels 12, 14 and their Fräsradpare.
  • the drive trains 40, 50 each have gear ratios, not shown, which reduce the speed of the sun gear 32 and thus increase the torque for the cutting wheels 12, 14 to a desired value.
  • the axes of the drive trains 40, 50 are arranged approximately at right angles to each other and form with the axis 33 of the sun gear 32 an upside-down Y-arrangement.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (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)
  • Gear Transmission (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Retarders (AREA)
  • Agricultural Machines (AREA)

Description

Die Erfindung betrifft eine Schlitzwandfräse mit mindestens zwei Paaren von Fräsrädern, welche um eine erste Drehachse bzw. eine zweite Drehachse drehbar sind, wobei die beiden Drehachsen zueinander versetzt sind.The invention relates to a trench cutter with at least two pairs of cutting wheels, which are rotatable about a first axis of rotation and a second axis of rotation, wherein the two axes of rotation are offset from each other.

Aus der DE 34 24 999 C2 gehen zwei unterschiedliche Arten von Schlitzwandfräsen hervor. So gibt es Schlitzwandfräsen mit einem Fräsrad oder einem Fräsradpaar mit zwei Fräsrädern, welche eine gemeinsame Drehachse besitzen. Ein einzelnes Fräsradpaar wird über einen gemeinsamen Antrieb in Rotation versetzt, wie in den Fig. 2 und 3 der DE 34 24 999 C2 dargestellt ist. Eine entsprechende Getriebeanordnung zum Antrieb eines einzelnen Fräsradpaares ist auch aus der DE 196 52 022 A1 bekannt.From the DE 34 24 999 C2 Two different types of trench wall cutters emerge. Thus, there are trench wall milling with a cutting wheel or a pair of cutting wheels with two cutting wheels, which have a common axis of rotation. A single pair of cutting wheels is rotated by a common drive, as in Figs. 2 and 3 of DE 34 24 999 C2 is shown. A corresponding gear arrangement for driving a single Fräsradpaares is also from the DE 196 52 022 A1 known.

Eine gattungsgemäße Schlitzwandfräse mit zwei Fräsradpaaren, welche zueinander quer zu den Drehachsen versetzt sind, ist in Fig. 1 der DE 34 24 999 C2 dargestellt. Die beiden Fräsradpaare werden jeweils von einem separaten Antriebsmotor über eine entsprechende Getriebeanordnung in Rotation versetzt.A generic trench cutter with two pairs of cutting wheels, which are offset from one another transversely to the axes of rotation, is in Fig. 1 of DE 34 24 999 C2 shown. The two pairs of cutting wheels are each set in rotation by a separate drive motor via a corresponding gear arrangement.

Eine weitere gattungsgemäße Schlitzwandfräse ist aus der EP-A-0 811 724 bekannt. Der an einer Vorrichtung aufgehängte Fräsrahmen weist ein Verankerungsteil mit Positionier- und Verankerungskufen und ein durch hydraulische Zylinder ausfahrbares Tragwerkzeug auf. An dem unteren Ende des Tragwerkzeuges sind an zueinander versetzten, von jeweils einem Hydraulikmotor angetriebenen Achsen Fräsradpaare gelagert. Die Fräsräder liegen jeweils in einer Ebene und drehen sich in entgegengesetzter Richtung. Mittels einer von einer Hydraulikpumpe erzeugten Einsaugung wird das Abbaumaterial überhalb und in der Mitte zwischen den versetzten Fräsrädern eingesaugt und über Schläuche nach oben transportiert.Another generic trench cutter is from the EP-A-0 811 724 known. The milling frame suspended on a device has an anchoring part with positioning and anchoring skids and a lifting tool which can be extended by hydraulic cylinders. At the lower end of the support tool are mounted on mutually offset, driven by a respective hydraulic motor axes Fräsradpaare. The cutting wheels are lying each in one plane and rotate in the opposite direction. By means of a suction generated by a hydraulic pump, the decomposition material is sucked in halfway and in the middle between the staggered cutting wheels and transported via hoses upwards.

In der DE 16 34 487 A wird eine Schlagbohrvorrichtung zum Herstellen von Schlitzlöchern unter Verwendung einer Strahlsaugspülung beschrieben. Die Vorrichtung weist gleich lange, gegenläufig angetriebene Gestängestränge auf, die durch eine mit Wandführungselementen versehene Brückenverbindung zu einer Einheit zusammengefasst sind. Jedem Gestängestrang ist ein Bohrmeißel zugeordnet und jeweils im Stranginneren wird das Bohrgut hochgefördert. Ein auf der Brücke angeordneter Antriebsmotor treibt ein Getriebe an, das Antriebsmoment auf mehrere Bohrmeißel verteilt.In the DE 16 34 487 A For example, a hammer drill for making slot holes using a jet aspirator will be described. The device has the same length, counter-driven rod assemblies, which are combined by a provided with wall guide elements bridge connection to a unit. Each drill string is assigned a drill bit and each in the strand inside the cuttings are promoted high. A drive motor arranged on the bridge drives a transmission which distributes drive torque to a plurality of drill bits.

Der Erfindung liegt die Aufgabe zugrunde, eine Schlitzwandfräse anzugeben, welche bei einem einfachen und kompakten Aufbau einen zuverlässigen Fräsbetrieb sicherstellt.The invention has for its object to provide a trench cutter, which ensures a reliable milling operation in a simple and compact structure.

Die Aufgabe wird erfindungsgemäß durch eine Schlitzwandfräse mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte Ausführungsformen sind in den abhängigen Ansprüchen angegeben.The object is achieved by a trench cutter with the features of claim 1. Preferred embodiments are given in the dependent claims.

Die erfindungsgemäße Schlitzwandfräse ist dadurch gekennzeichnet, dass ein einzelner Antriebsmotor vorgesehen ist, welcher über eine Getriebeanordnung die mindestens zwei Fräsräder oder Fräsradpaare gemeinsam antreibt.The trench wall cutter according to the invention is characterized in that a single drive motor is provided which via a gear arrangement which drives at least two cutting wheels or pairs of cutting wheels together.

Durch die Erfindung wird nicht nur der Aufwand für den Antrieb und das Getriebe der Schlitzwandfräse praktisch halbiert, sondern ein gemeinsamer Antrieb und eine gemeinsame Getriebeanordnung ermöglichen auch eine Zwangssynchronisation der Fräsräder. Dies erlaubt, die quer zur Drehachse nebeneinander versetzt angeordneten Fräsräder dichter nebeneinander anzuordnen. Es ergibt sich eine besonders kompakte Schlitzwandfräse mit guter Abtragsleistung, bei welcher auch die Gefahr eines Steckenbleibens innerhalb des Schlitzes deutlich vermindert ist.By the invention, not only the cost of the drive and the transmission of the trench wall cutter is practically halved, but a common drive and a common gear arrangement also allow forced synchronization of the cutting wheels. This allows the transverse to the axis of rotation juxtaposed milling wheels arranged closer together. This results in a particularly compact trench wall cutter with good material removal, in which the risk of getting stuck within the slot is significantly reduced.

Ein zusätzliches Kennzeichen der Erfindung besteht darin, dass die Getriebeanordnung ein Sonnenrad aufweist, welches im Wesentlichen mittig zwischen den zwei zueinander versetzt angeordneten Drehachsen angeordnet ist. Es ergibt sich so eine symmetrische Drehmomenteinleitung, was eine besonders gleichmäßige Drehmomentverteilung ermöglicht.An additional feature of the invention is that the gear arrangement has a sun gear, which is arranged substantially centrally between the two mutually offset axes of rotation. This results in a symmetrical torque introduction, which allows a particularly uniform torque distribution.

Eine besondere kompakte Getriebeanordnung wird erfindungsgemäß dadurch erreicht, dass die zwei Paare von Fräsrädern jeweils einen gemeinsamen Antriebsstrang aufweisen, welche von dem Sonnenrad angetrieben werden.A particular compact gear arrangement according to the invention is achieved in that the two pairs of cutting wheels each have a common drive train, which are driven by the sun gear.

Eine besonders gute Drehmomentverteilung bei einem kompakten Aufbau wird nach der Erfindung dadurch erreicht, dass die Antriebsstränge in einem spitzen Winkel zur Achse des Sonnenrades angeordnet sind. Die Antriebsstränge bilden dabei mit dem Sonnenrad eine Anordnung in Form eines umgedrehten Y, wobei die Antriebsstränge oberhalb der Drehachsen der Fräsräder angeordnet und nach oben gerichtet sind. Der spitze Winkel beträgt vorzugsweise zwischen 15° und 60°, insbesondere 45°.A particularly good torque distribution in a compact design is achieved according to the invention in that the drive trains are arranged at an acute angle to the axis of the sun gear. The drive trains form with the sun gear an arrangement in the form of an inverted Y, wherein the drive trains are arranged above the axes of rotation of the cutting wheels and directed upward. The acute angle is preferably between 15 ° and 60 °, in particular 45 °.

Für eine gute Lastverteilung ist es dabei besonders bevorzugt, dass die Antriebsstränge etwa in einem rechten Winkel zueinander angeordnet sind.For a good load distribution, it is particularly preferred that the drive trains are arranged approximately at a right angle to each other.

Nach einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass die Antriebsstränge jeweils mindestens ein Übersetzungsgetriebe aufweisen. Unter Übersetzungsgetriebe wird selbstverständlich auch eine Untersetzung verstanden. Es kann so eine gewünschte Drehmomentwandlung unmittelbar an den Fräsrädern erfolgen. Darüber hinaus weisen die Antriebsstränge bei der Anordnung von Fräsradpaaren jeweils auch ein Verteilunggetriebe auf, welches das Drehmoment des Antriebsstrangs zu gleichen Teilen auf die Fräsräder entlang der gleichen Drehachse verteilt.According to a further embodiment of the invention, it is provided that the drive trains each have at least one transmission gear. Under gear transmission is understood, of course, a reduction. It can be done directly on the cutting wheels so a desired torque conversion. In addition, the drive trains in the arrangement of Fräsradpaaren also each have a distribution gear, which distributes the torque of the drive train in equal parts on the cutting wheels along the same axis of rotation.

Weiterhin ist es nach der Erfindung von Vorteil, dass an den Fräsrädern oder Fräsradpaaren radial vorstehende Fräszähne vorgesehen sind, welche in Betrieb ineinander greifend angeordnet sind. Aufgrund der mit der Erfindung erreichbaren Zwangssynchronisation der nebeneinander liegenden Fräsräder können diese so eng beieinander angeordnet werden, dass die Fräszähne gefahrlos miteinander kämmen. Auf diese Weise kann über den gesamten Fräsquerschnitt eine gleichmäßig hohe Abtragsleistung erreicht werden.Furthermore, it is advantageous according to the invention that radially projecting cutting teeth are provided on the cutting wheels or cutting wheel pairs, which are arranged intermeshing in operation. Due to the achievable with the invention forced synchronization of juxtaposed cutting wheels they can be arranged so close to each other that the cutting teeth mesh with each other safely. In this way, a uniformly high removal rate can be achieved over the entire milling cross section.

Eine besonders gute und wartungsfreundliche Ausgestaltung der Erfindung ist dadurch gegeben, dass der Antriebsmotor und die Getriebeanordnung in einem Fräsgehäuse angeordnet sind.A particularly good and maintenance-friendly embodiment of the invention is given by the fact that the drive motor and the gear arrangement are arranged in a milling housing.

Dabei ist es besonders bevorzugt, dass die Schlitzwandfräse an einem teleskopierbaren Gestänge befestigt ist und dass die Dicke des Fräsengehäuses in Richtung der Drehachsen kleiner oder gleich dem maximalen Durchmesser des teleskopierbaren Gestänges ist. Während bei herkömmlichen Fräsen üblicherweise ein sehr großer Fräsrahmen gegeben ist, welcher zur Führung der Schlitzwandfräse im Schlitz notwendig ist, kann die erfindungsgemäße kompakte Schlitzwandfräse durch ein teleskopierbares Gestänge geführt werden. Durch den erfindungsgemäßen kompakten Aufbau des Fräsengehäuses, welches nicht über den maximalen Durchmesser des teleskopierbaren Gestänges in Richtung der Drehachsen hinausragt, wird die Gefahr eines Verklemmens der Schlitzwandfräse im Schlitz drastisch vermindert.It is particularly preferred that the trench wall cutter is attached to a telescopic linkage and that the thickness of the milling housing in the direction of the axes of rotation is less than or equal to the maximum diameter of the telescopic linkage. While in conventional milling usually a very large cutting frame is given, which is necessary for guiding the trench wall cutter in the slot, the compact trench cutter according to the invention can be performed by a telescopic linkage. Due to the compact design of the milling housing according to the invention, which does not protrude beyond the maximum diameter of the telescopic linkage in the direction of the axes of rotation, the risk of jamming of the trench wall cutter in the slot is drastically reduced.

Nach einer anderen bevorzugten Ausführungsform ist es erfindungsgemäß vorgesehen, dass zwischen dem Antriebsmotor und dem Sonnenrad eine Hauptantriebswelle angeordnet ist. Die Hauptantriebswelle kann dabei an ihren beiden Enden jeweils Bogenverzahnungen aufweisen, welche in entsprechenden Verzahhungshülsen des Antriebsmotors bzw. des Sonnenrads kämmend angeordnet sind. Eine derartige Anordnung erlaubt eine Kompensation von Stößen sowie Verwindungen zwischen dem Antriebsmotor und dem Sonnenrad, so dass eine besonders langlebige Getriebeanordnung geschaffen wird.According to another preferred embodiment, it is inventively provided that between the drive motor and the sun gear, a main drive shaft is arranged. The main drive shaft can each have at its two ends in each case curved toothings, which are arranged in meshing manner in corresponding toothed sleeves of the drive motor or of the sun gear. Such an arrangement allows a compensation of shocks and torsions between the drive motor and the sun gear, so that a particularly durable transmission arrangement is created.

Die Erfindung wird nachfolgend anhand eines Ausführüngsbeispieles näher beschrieben, welches stark schematisiert in der einzigen Zeichnungsfigur dargestellt ist.The invention will be described in more detail below with reference to a Ausführüngsbeispieles, which is shown in a highly schematic manner in the single drawing figure.

Eine erfindungsgemäße Schlitzwandfräse 10 gemäß der Figur zeigt zwei Fräsräder 12, 14, an deren Außenumfang eine Vielzahl von Fräszähnen 20 angeordnet sind. Die Fräsräder 12, 13 gehören jeweils zu einem Fräsradpaar, wobei das hintere Fräsrad nicht dargestellt ist. Das linksseitige Fräsrad 12 des einen Fräsradpaares dreht sich um eine erste Drehachse 16, während das rechtseitige Fräsrad 14 des anderen Fräsradpaares sich um eine zweite Drehachse 18 dreht. Die beiden Drehachsen 16, 18 sind in einer Querrichtung zueinander um einen vorgegebenen Abstand versetzt. Das linksseitige Fräsrad 12 ist im Uhrzeigersinn angetrieben, während das rechtseitige Fräsrad 14 entgegen des Uhrzeigersinns angetrieben ist.A trench wall cutter 10 according to the invention according to the figure shows two cutting wheels 12, 14, on whose outer circumference a plurality of cutting teeth 20 are arranged. The cutting wheels 12, 13 each belong to a cutting wheel pair, wherein the rear cutting wheel is not shown. The left-side cutting wheel 12 of a pair of cutting wheels rotates about a first axis of rotation 16, while the right-side cutting wheel 14 of the other pair of cutting wheels rotates about a second axis of rotation 18. The two axes of rotation 16, 18 are offset in a transverse direction to each other by a predetermined distance. The left-side cutting wheel 12 is driven in the clockwise direction, while the right-side cutting wheel 14 is driven in the counterclockwise direction.

Von einem oberhalb der Drehachsen 16, 18 angeordneten, nicht dargestellten gemeinsamen Antriebsmotor wird das Antriebsdrehmoment über eine Getriebeanordnung 30 auf die Fräsräder 12, 14 bzw. deren Fräsradpaare übertragen. Zum Antriebsmotor wird das Drehmoment über eine teilweise dargestellte Hauptantriebswelle 36 auf ein Sonnenrad 32 übertragen. Die Hauptantriebswelle 36 weist hierzu an ihrem unteren Ende eine Bogenverzahnung 37 auf, welche in einer entsprechenden Verzahnungshülse am oberen Ende des Sonnenrades 32 angeordnet ist. Das Sonnenrad 32 weist eine Achse 33 auf, welche etwa senkrecht zu den Drehachsen 16, 18 der Fräsräder 12, 14 gerichtet und mittig hierzu angeordnet ist.From a above the axes of rotation 16, 18 arranged, not shown common drive motor, the drive torque via a gear assembly 30 to the cutting wheels 12, 14 and their Fräsradpaare transmitted. To the drive motor, the torque is transmitted via a partially shown main drive shaft 36 to a sun gear 32. The main drive shaft 36 has for this purpose at its lower end a curved toothing 37, which is arranged in a corresponding toothed sleeve at the upper end of the sun gear 32. The sun gear 32 has an axis 33 which is approximately perpendicular to the axes of rotation 16, 18 of the cutting wheels 12, 14 directed and arranged centrally thereto.

Von einer Ritzelverzahnung des Sonnenrades 32 wird das Drehmoment in kämmender Verbindung über Tellerzahnräder 42, 52 auf die Antriebesstränge 40, 50 für die Fräsräder 12, 14 bzw. deren Fräsradpaare übertragen. Die Antriebsstränge 40, 50 weisen jeweils nicht dargestellte Übersetzungsgetriebe auf, welche die Drehzahl des Sonnenrades 32 untersetzen und so das Drehmoment für die Fräsräder 12, 14 auf einen gewünschten Wert erhöhen. Durch das Abgreifen des Drehmoments an dem Sonnenrad 32 durch die Tellerzahnräder 42, 52 an gegenüberliegenden Stellen kann bei ansonsten gleicher Ausgestaltung der Antriebsstränge 40, 50 eine gleichmäßige Drehmomentverteilung bei entgegengesetzter Drehrichtung in einfacher Weise erreicht werden.From a pinion toothing of the sun gear 32, the torque is transmitted in a combing connection via the plate gears 42, 52 on the drive lines 40, 50 for the cutting wheels 12, 14 and their Fräsradpaare. The drive trains 40, 50 each have gear ratios, not shown, which reduce the speed of the sun gear 32 and thus increase the torque for the cutting wheels 12, 14 to a desired value. By tapping the torque on the sun gear 32 through the ring gears 42, 52 at opposite points can be achieved with otherwise identical configuration of the drive trains 40, 50 a uniform torque distribution in the opposite direction in a simple manner.

Die Achsen der Antriebsstränge 40, 50 sind etwa rechtwinklig zueinander angeordnet und bilden mit der Achse 33 des Sonnenrades 32 eine auf dem Kopf stehende Y-Anordnung.The axes of the drive trains 40, 50 are arranged approximately at right angles to each other and form with the axis 33 of the sun gear 32 an upside-down Y-arrangement.

Claims (8)

  1. Trench cutter comprising at least two pairs of cutting wheels (12, 14),
    which rotate about a first axis of rotation (16) or respectively about a second axis of rotation (18),
    both axes of rotation being offset from each other,
    characterized in that
    a single drive motor is provided, which jointly drives the at least two pairs of cutting wheels (12, 14) by means of a gear arrangement (30),
    in that the gear arrangement (30) has a sun wheel (32) that is substantially arranged in a central position between the two mutually offset axes of rotation (16, 18), and
    in that the two pairs of cutting wheels (12, 14) each have a drive train (40, 50) which is driven by the sun wheel (32).
  2. Trench cutter according to claim 1,
    characterized in that
    the drive trains (40, 50) are arranged at an acute angle to the axis (33) of the sun wheel (32).
  3. Trench cutter according to claim 1 or 2,
    characterized in that
    the drive trains (40, 50) are arranged approximately at a right angle with respect to each other.
  4. Trench cutter according to any one of claims 1 to 3,
    characterized in that
    the drive trains (40, 50) each have at least one transmission gear.
  5. Trench cutter according to any one of claims 1 to 4,
    characterized in that
    radially protruding cutting teeth (20) are provided on the cutting wheels (12, 14) or pairs of cutting wheels, which are arranged in a meshing manner during operation.
  6. Trench cutter according to any one of claims 1 to 5,
    characterized in that
    the drive motor and the gear arrangement (30) are arranged in a cutter housing.
  7. Trench cutter according to claim 6,
    characterized in that
    the trench cutter (10) is mounted on a telescopic rod and
    in that in the direction of the axes of rotation (16, 18) the thickness of the cutter housing is smaller than or equal to the maximum diameter of the telescopic rod.
  8. Trench cutter according to any one of claims 1 to 7,
    characterized in that
    a main drive shaft (36) is arranged between the drive motor and the sun wheel (32).
EP04007475A 2004-03-26 2004-03-26 Slotted wall milling cutter Expired - Lifetime EP1580327B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP04007475A EP1580327B1 (en) 2004-03-26 2004-03-26 Slotted wall milling cutter
DE502004007221T DE502004007221D1 (en) 2004-03-26 2004-03-26 Trench cutter
KR1020050022209A KR100661593B1 (en) 2004-03-26 2005-03-17 Trench Cutter
RU2005107742/03A RU2295003C2 (en) 2004-03-26 2005-03-21 Slot-cutting milling device
US11/098,654 US7497038B2 (en) 2004-03-26 2005-03-24 Trench cutter
JP2005088636A JP4046737B2 (en) 2004-03-26 2005-03-25 Trench cutter
CNB2005100627502A CN100357529C (en) 2004-03-26 2005-03-25 Slotted wall milling cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04007475A EP1580327B1 (en) 2004-03-26 2004-03-26 Slotted wall milling cutter

Publications (2)

Publication Number Publication Date
EP1580327A1 EP1580327A1 (en) 2005-09-28
EP1580327B1 true EP1580327B1 (en) 2008-05-21

Family

ID=34854645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04007475A Expired - Lifetime EP1580327B1 (en) 2004-03-26 2004-03-26 Slotted wall milling cutter

Country Status (7)

Country Link
US (1) US7497038B2 (en)
EP (1) EP1580327B1 (en)
JP (1) JP4046737B2 (en)
KR (1) KR100661593B1 (en)
CN (1) CN100357529C (en)
DE (1) DE502004007221D1 (en)
RU (1) RU2295003C2 (en)

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US7845098B1 (en) * 2009-05-22 2010-12-07 Loram Maintenance Of Way, Inc. Rotary undercutter for rail line maintenance
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CN111049065B (en) * 2020-01-15 2020-10-27 东阳罗素电子科技有限公司 Underwater efficient laying machine for cables
CN111663587B (en) * 2020-07-27 2021-01-26 荆门市漳河新区同丰稻虾养殖专业合作社 Shrimp ditch excavation device in rice and shrimp symbiotic culture field
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EP3904603A1 (en) 2020-04-29 2021-11-03 BAUER Spezialtiefbau GmbH Trench wall cutter
WO2021219279A1 (en) 2020-04-29 2021-11-04 Bauer Spezialtiefbau Gmbh Slurry wall excavator

Also Published As

Publication number Publication date
JP2005282350A (en) 2005-10-13
US7497038B2 (en) 2009-03-03
DE502004007221D1 (en) 2008-07-03
KR20060043752A (en) 2006-05-15
CN1673464A (en) 2005-09-28
RU2005107742A (en) 2006-10-20
EP1580327A1 (en) 2005-09-28
US20050229440A1 (en) 2005-10-20
KR100661593B1 (en) 2006-12-27
RU2295003C2 (en) 2007-03-10
JP4046737B2 (en) 2008-02-13
CN100357529C (en) 2007-12-26

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