EP1452686A1 - Pick holder for bidirectional milling devices for building diaphragm walls - Google Patents
Pick holder for bidirectional milling devices for building diaphragm walls Download PDFInfo
- Publication number
- EP1452686A1 EP1452686A1 EP04001010A EP04001010A EP1452686A1 EP 1452686 A1 EP1452686 A1 EP 1452686A1 EP 04001010 A EP04001010 A EP 04001010A EP 04001010 A EP04001010 A EP 04001010A EP 1452686 A1 EP1452686 A1 EP 1452686A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- milling
- wheel
- rotation
- cutting
- elements
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/40—Swinging or turning gates
- E02B7/48—Roof or double shutter gates
-
- 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
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/205—Barrages controlled by the variations of the water level; automatically functioning barrages
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/40—Swinging or turning gates
- E02B7/44—Hinged-leaf gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/54—Sealings for gates
-
- 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
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements
Definitions
- the invention relates to a milling device for milling Slits in the floor according to the preamble of claim 1.
- a such milling device has at least one rotatably drivable Milling wheel and at least one first arranged on the milling wheel Milling element for removing soil material during one rotation of the milling wheel in a first direction of rotation.
- Such a milling device is known from DE 37 15 977 C2.
- this known milling device are on one Milling wheel arranged on the circumferential fixed teeth, the for removing soil material during a rotation serve the milling wheel.
- the milling wheel can be swiveled Folding teeth arranged in an extended position in the soil material in front of a bearing plate of the milling wheel intervention.
- the milling teeth are such on the milling wheel arranged that their milling effect only for a certain Direction of rotation is optimized.
- the invention has for its object to provide a milling device of the type mentioned, which is as versatile as possible.
- Such a milling device is characterized that at least one second on the milling wheel Milling element for removing soil material in the opposite direction second direction of rotation is arranged that at least one of the milling elements between a first position for Removal of soil and a retracted second position is adjustable, and that an adjusting device to adjust the milling element between the first and the second position is provided.
- a basic idea of the invention is based on the one Rotating axis rotatable milling wheel both a first milling element and also to attach a second milling element, the first milling element when the milling wheel rotates in a first Direction of rotation, the second milling element, however, when turning of the cutting wheel in an opposite second direction of rotation removes soil material from the milling wheel.
- At least one of the milling elements is through an actuating device between a first position in which there is soil material can erode on the wall of the slot, and a retracted second position, in which preferably no tillage done, adjustable storage.
- Those are preferred Milling elements in a circumferential direction of the milling wheel one behind the other arranged.
- the adjustable bearing is also preferred Milling element arranged so that at least part of it in the first position radially further from the axis of rotation of the Milling wheel is spaced apart than in the second position.
- the milling elements are arranged in such a way that they are adjustable stored milling element in the first position opposite the other milling element in a radial direction of the cutting wheel protrudes at least partially, whereas in the second position at least the other milling element partially radial compared to the adjustable milling element protrudes. This ensures that depending on the position of the adjustable milling element either the adjustable Milling element or the other milling element to the ground machined the wall of the slot. This makes it special versatile milling wheel created.
- the adjustable milling element is adjusted preferably depending on the direction of rotation of the milling wheel. If the first milling element is adjustable, so the adjustment is preferably carried out so that the first Milling element when the milling wheel rotates in a first Direction of rotation in the first position to remove soil material is located, when rotating in the opposite direction second direction of rotation, however, in the retracted second position. Is the adjustable milling element the second Milling element, so it is preferred when rotating in the second direction of rotation brought into the first position.
- Such one Direction-dependent adjustment enables that at a reversing rotation of the cutting wheel only ever for the milling element provided with the respective direction of rotation Wall of the slot is in contact and removes soil material there.
- the other milling element is on the other hand in the retracted position where it is affected by the generally very hard soil material to be removed is. This will make the milling wheel operate with a good one Milling performance enabled in both directions of rotation and simultaneously excessive wear of the milling elements avoided.
- a preferred embodiment of the milling device according to the invention is characterized in that the first milling element and the second milling element are adjustable. hereby this results in a particularly flexible milling device. It is preferred that by the actuator when adjusting the first milling element, the second milling element is adjustable in the other position. This will ensures that only one of the Milling elements in the first position for removing soil material whereas the other is in the protected second position is withdrawn.
- a preferred milling device is further characterized in that that the actuator has a drive for adjustment of the milling element.
- a drive can, for example as hydraulic drive, rack drive or cam actuator be trained.
- the actuator can be actuated by a force which is exerted by the ground in rotation becomes.
- the force can be a frictional force act between at least one of the milling elements and the upcoming floor and / or between the actuating device and the upcoming soil occurs. This will a particularly reliable adjustment depending on the direction of rotation the milling elements reached.
- the Setting device at least one on a peripheral surface of the Milling wheel trained swivel lever.
- the Swivel lever on a swivel axis that is parallel to one Axis of rotation of the milling wheel is formed.
- the swivel lever is symmetrical to the swivel axis, in particular mirror-symmetrical to one through the pivot axis extending plane, is formed.
- the first and second milling element in pairs on the swivel lever is arranged.
- the milling elements can preferably be used also symmetrical to the swivel axis, in particular mirror-symmetrical to a plane running through the swivel axis, to be ordered. Such an arrangement will particularly reliable mutual adjustment of the am Swivel lever arranged milling elements reached.
- Prefers is the swivel lever by a while rotating the Friction wheel occurring friction force between the milling elements and the adjacent floor is pivoted depending on the direction of rotation.
- Knobs or cutting rollers can be provided as milling elements his. However, it is particularly preferred that at least one the milling elements have a milling tooth with a one-sided design Cutting edge is. Such a milling element ensures a high cutting effect and at the same time a good one Transport of the removed soil material on the wall of the Slot along.
- a particularly preferred trench wall cutter there are several Any number of cutting wheels are provided, which are parallel Have axes of rotation.
- a particularly preferred embodiment has four cutting wheels, two of which are in pairs are rotatably arranged about the same axis of rotation.
- a cross section the slot in the bottom is preferably rectangular.
- Fig. 1 shows a front view of an embodiment on a milling device.
- Frame 20 On one designed as a carrier plate Frame 20 are two cutting wheels 12 on end shields, 12 'rotatably attached.
- the milling wheels 12, 12 ' are immediate formed side by side with parallel axes of rotation.
- Hydraulic motors 15, 15 'for driving are on the frame 20 the milling wheels attached and with the milling wheels 12, 12 ' acting connected.
- Fig. 2 shows an embodiment of an inventive Milling wheel 12.
- first and second Milling elements 16, 18 are arranged adjustable.
- the second milling element 18 In the in Fig. 2 state is the second milling element 18 in a first position for removing soil material, the second milling element 16, however, in a retracted second position. The second protrudes in this position Milling element 18 in the radial direction over the first milling element 16 out.
- Such an arrangement is for removing soil material when turning the milling wheel clockwise intended.
- the first and second milling elements 16, 18 are single-sided cutting milling teeth designed and have a cutting edge 19 on. They are over with the swivel lever 5 two attachment points connected.
- the pivot lever 5 can be pivoted about a pivot axis 45 articulated on the milling wheel 12.
- the pivot axis 45 extends parallel to an axis of rotation 42 of the cutting wheel 12.
- a stop 7 designed as a stop surface. In the operating state shown for clockwise rotation the stop surface is to the left of the pivot axis 45 on a peripheral surface 9 of the cutting wheel 12.
- the swivel lever 5 and the first and second milling elements 16, 18 mirror-symmetrical to a extending through the pivot axis 45 Mirror plane trained.
- the stop 7 forming The stop surface has an arcuate cross section on.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Road Repair (AREA)
- Milling Processes (AREA)
- Shovels (AREA)
- Soil Working Implements (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Earth Drilling (AREA)
Abstract
Description
Die Erfindung betrifft eine Fräsvorrichtung zum Fräsen von Schlitzen im Boden gemäß dem Oberbegriff des Anspruchs 1. Eine solche Fräsvorrichtung weist mindestens ein drehbar antreibbares Fräsrad und mindestens ein am Fräsrad angeordnetes erstes Fräselement zum Abtragen von Bodenmaterial bei einer Drehung des Fräsrades in einer ersten Drehrichtung auf.The invention relates to a milling device for milling Slits in the floor according to the preamble of claim 1. A such milling device has at least one rotatably drivable Milling wheel and at least one first arranged on the milling wheel Milling element for removing soil material during one rotation of the milling wheel in a first direction of rotation.
Eine derartige Fräsvorrichtung ist aus der DE 37 15 977 C2 bekannt. Bei dieser bekannten Fräsvorrichtung sind an einem Fräsrad umfangsseitig feststehende Fräszähne angeordnet, die zum Abtragen von anstehendem Bodenmaterial bei einer Drehung des Fräsrades dienen. Ferner sind am Fräsrad schwenkbare Klappzähne angeordnet, die in einer ausgeklappten Stellung in das vor einem Lagerschild des Fräsrades befindliche Bodenmaterial eingreifen. Die Fräszähne sind dabei am Fräsrad derart angeordnet, dass ihre Fräswirkung lediglich für eine bestimmte Drehrichtung optimiert ist.Such a milling device is known from DE 37 15 977 C2. In this known milling device are on one Milling wheel arranged on the circumferential fixed teeth, the for removing soil material during a rotation serve the milling wheel. Furthermore, the milling wheel can be swiveled Folding teeth arranged in an extended position in the soil material in front of a bearing plate of the milling wheel intervention. The milling teeth are such on the milling wheel arranged that their milling effect only for a certain Direction of rotation is optimized.
Der Erfindung liegt die Aufgabe zugrunde, eine Fräsvorrichtung der eingangs genannten Art anzugeben, die möglichst vielseitig einsetzbar ist.The invention has for its object to provide a milling device of the type mentioned, which is as versatile as possible.
Diese Aufgabe wird erfindungsgemäß durch eine gattungsgemäße Fräsvorrichtung mit den Merkmalen des kennzeichnenden Teils des Anspruchs 1 gelöst. Eine derartige Fräsvorrichtung ist dadurch gekennzeichnet, dass am Fräsrad mindestens ein zweites Fräselement zum Abtragen von Bodenmaterial bei einer entgegengerichteten zweiten Drehrichtung angeordnet ist, dass mindestens eines der Fräselemente zwischen einer ersten Position zum Abtragen von Bodenmaterial und einer rückgezogenen zweiten Position verstellbar gelagert ist, und dass eine Stelleinrichtung zum Verstellen des Fräselementes zwischen der ersten und der zweiten Position vorgesehen ist.This object is achieved by a generic Milling device with the features of the characteristic part of claim 1 solved. Such a milling device is characterized that at least one second on the milling wheel Milling element for removing soil material in the opposite direction second direction of rotation is arranged that at least one of the milling elements between a first position for Removal of soil and a retracted second position is adjustable, and that an adjusting device to adjust the milling element between the first and the second position is provided.
Ein Grundgedanke der Erfindung liegt darin, an dem um eine Drehachse drehbaren Fräsrad sowohl ein erstes Fräselement als auch ein zweites Fräselement anzubringen, wobei das erste Fräselement bei einer Drehung des Fräsrades in einer ersten Drehrichtung, das zweite Fräselement hingegen bei einer Drehung des Fräsrades in einer entgegengesetzten zweiten Drehrichtung am Fräsrad anstehendes Bodenmaterial abträgt. Mindestens eines der Fräselemente ist dabei durch eine Stelleinrichtung zwischen einer ersten Position, in welcher es Bodenmaterial an der Wand des Schlitzes abtragen kann, und einer rückgezogenen zweiten Position, in der vorzugsweise keine Bodenbearbeitung erfolgt, verstellbar gelagert. Bevorzugt sind die Fräselemente in einer Umfangsrichtung des Fräsrades hintereinander angeordnet. Bevorzugt ist ferner das verstellbar gelagerte Fräselement so angeordnet, dass zumindest ein Teil hiervon in der ersten Position radial weiter von der Drehachse des Fräsrades beabstandet ist, als in der zweiten Position. Insbesondere sind die Fräselemente derart angeordnet, dass das verstellbar gelagerte Fräselement in der ersten Position gegenüber dem jeweils anderen Fräselement in einer radialen Richtung des Fräsrades zumindest teilweise hervorsteht, wohingegen in der zweiten Position das jeweils andere Fräselement zumindest teilweise gegenüber dem verstellbaren Fräselement radial hervorsteht. Hierdurch wird erreicht, dass in Abhängigkeit von der Position des verstellbaren Fräselementes entweder das verstellbare Fräselement oder das andere Fräselement den Boden an der Wand des Schlitzes bearbeitet. Somit wird ein besonders vielseitig einsetzbares Fräsrad geschaffen.A basic idea of the invention is based on the one Rotating axis rotatable milling wheel both a first milling element and also to attach a second milling element, the first milling element when the milling wheel rotates in a first Direction of rotation, the second milling element, however, when turning of the cutting wheel in an opposite second direction of rotation removes soil material from the milling wheel. At least one of the milling elements is through an actuating device between a first position in which there is soil material can erode on the wall of the slot, and a retracted second position, in which preferably no tillage done, adjustable storage. Those are preferred Milling elements in a circumferential direction of the milling wheel one behind the other arranged. The adjustable bearing is also preferred Milling element arranged so that at least part of it in the first position radially further from the axis of rotation of the Milling wheel is spaced apart than in the second position. In particular the milling elements are arranged in such a way that they are adjustable stored milling element in the first position opposite the other milling element in a radial direction of the cutting wheel protrudes at least partially, whereas in the second position at least the other milling element partially radial compared to the adjustable milling element protrudes. This ensures that depending on the position of the adjustable milling element either the adjustable Milling element or the other milling element to the ground machined the wall of the slot. This makes it special versatile milling wheel created.
Das Verstellen des verstellbar gelagerten Fräselementes erfolgt dabei vorzugsweise in Abhängigkeit von der Drehrichtung des Fräsrades. Ist dabei das erste Fräselement verstellbar, so erfolgt das Verstellen vorzugsweise so, dass sich das erste Fräselement bei einer Drehung des Fräsrades in einer ersten Drehrichtung in der ersten Position zum Abtragen von Bodenmaterial befindet, bei einer Drehung in der entgegengerichteten zweiten Drehrichtung hingegen in der rückgezogenen zweiten Position. Ist das verstellbar gelagerte Fräselement das zweite Fräselement, so wird es bevorzugt bei einer Drehung in der zweiten Drehrichtung in die erste Position gebracht. Ein solches drehrichtungsabhängiges Verstellen ermöglicht, dass bei einer reversierenden Drehung des Fräsrades immer nur das für die jeweilige Drehrichtung vorgesehene Fräselement mit der Wand des Schlitzes in Kontakt steht und dort Bodenmaterial abträgt. Das jeweils andere Fräselement befindet sich hingegen in der rückgezogenen Position, wo es von einer Einwirkung des allgemein sehr harten abzutragenden Bodenmaterials geschützt ist. Hierdurch wird ein Betrieb des Fräsrades mit einer guten Fräsleistung in beiden Drehrichtungen ermöglicht und gleichzeitig ein übermäßiger Verschleiß der Fräselemente vermieden.The adjustable milling element is adjusted preferably depending on the direction of rotation of the milling wheel. If the first milling element is adjustable, so the adjustment is preferably carried out so that the first Milling element when the milling wheel rotates in a first Direction of rotation in the first position to remove soil material is located, when rotating in the opposite direction second direction of rotation, however, in the retracted second position. Is the adjustable milling element the second Milling element, so it is preferred when rotating in the second direction of rotation brought into the first position. Such one Direction-dependent adjustment enables that at a reversing rotation of the cutting wheel only ever for the milling element provided with the respective direction of rotation Wall of the slot is in contact and removes soil material there. The other milling element is on the other hand in the retracted position where it is affected by the generally very hard soil material to be removed is. This will make the milling wheel operate with a good one Milling performance enabled in both directions of rotation and simultaneously excessive wear of the milling elements avoided.
Eine bevorzugte Ausgestaltung der erfindungsgemäßen Fräsvorrichtung ist dadurch gekennzeichnet, dass das erste Fräselement und das zweite Fräselement verstellbar sind. Hierdurch ergibt sich eine besonders flexibel einsetzbare Fräsvorrichtung. Dabei ist bevorzugt, dass durch die Stelleinrichtung beim Verstellen des ersten Fräselementes das zweite Fräselement in die andere Position verstellbar ist. Hierdurch wird gewährleistet, dass sich beim Fräsen jeweils nur eines der Fräselemente in der ersten Position zum Abtragen von Bodenmaterial befindet, wohingegen das jeweils andere in die geschützte zweite Position zurückgezogen ist.A preferred embodiment of the milling device according to the invention is characterized in that the first milling element and the second milling element are adjustable. hereby this results in a particularly flexible milling device. It is preferred that by the actuator when adjusting the first milling element, the second milling element is adjustable in the other position. This will ensures that only one of the Milling elements in the first position for removing soil material whereas the other is in the protected second position is withdrawn.
Eine bevorzugte Fräsvorrichtung ist ferner dadurch gekennzeichnet, dass die Stelleinrichtung einen Antrieb zum Verstellen des Fräselementes aufweist. Ein solcher Antrieb kann beispielsweise als Hydraulikantrieb, Zahnstangenantrieb oder Nocken-Stellantrieb ausgebildet sein. Besonders bevorzugt ist es jedoch, dass die Stelleinrichtung durch eine Kraft betätigbar ist, welche im Drehbetrieb vom anstehenden Boden ausgeübt wird. Insbesondere kann es sich bei der Kraft um eine Reibungskraft handeln, die zwischen mindestens einem der Fräselemente und dem anstehenden Boden und/oder zwischen der Stelleinrichtung und dem anstehenden Boden auftritt. Hierdurch wird ein besonders zuverlässiges drehrichtungsabhängiges Verstellen der Fräselemente erreicht.A preferred milling device is further characterized in that that the actuator has a drive for adjustment of the milling element. Such a drive can, for example as hydraulic drive, rack drive or cam actuator be trained. It is particularly preferred however, that the actuator can be actuated by a force which is exerted by the ground in rotation becomes. In particular, the force can be a frictional force act between at least one of the milling elements and the upcoming floor and / or between the actuating device and the upcoming soil occurs. This will a particularly reliable adjustment depending on the direction of rotation the milling elements reached.
In einer besonders bevorzugten Fräsvorrichtung weist die Stelleinrichtung mindestens einen an einer Umfangsfläche des Fräsrades ausgebildeten Schwenkhebel auf. Bevorzugt weist der Schwenkhebel dabei eine Schwenkachse auf, die parallel zu einer Drehachse des Fräsrades ausgebildet ist. Bevorzugt ist hierbei, dass der Schwenkhebel symmetrisch zur Schwenkachse, insbesondere spiegelsymmetrisch zu einer durch die Schwenkachse verlaufende Ebene, ausgebildet ist. Ferner ist bevorzugt, dass das erste und zweite Fräselement paarweise am Schwenkhebel angeordnet ist. Bevorzugt können die Fräselemente dabei ebenfalls symmetrisch zur Schwenkachse, insbesondere spiegelsymmetrisch zu einer durch die Schwenkachse verlaufenden Ebene, angeordnet werden. Durch eine solche Anordnung wird ein besonders zuverlässiges wechselseitiges Verstellen der am Schwenkhebel angeordneten Fräselemente erreicht. Bevorzugt wird der Schwenkhebel dabei durch eine bei der Drehung des Fräsrades auftretenden Reibungskraft zwischen den Fräselementen und dem anstehenden Boden drehrichtungsabhängig verschwenkt.In a particularly preferred milling device, the Setting device at least one on a peripheral surface of the Milling wheel trained swivel lever. Preferably, the Swivel lever on a swivel axis that is parallel to one Axis of rotation of the milling wheel is formed. Is preferred here that the swivel lever is symmetrical to the swivel axis, in particular mirror-symmetrical to one through the pivot axis extending plane, is formed. It is also preferred that the first and second milling element in pairs on the swivel lever is arranged. The milling elements can preferably be used also symmetrical to the swivel axis, in particular mirror-symmetrical to a plane running through the swivel axis, to be ordered. Such an arrangement will particularly reliable mutual adjustment of the am Swivel lever arranged milling elements reached. Prefers is the swivel lever by a while rotating the Friction wheel occurring friction force between the milling elements and the adjacent floor is pivoted depending on the direction of rotation.
Eine besonders bevorzugte Fräsvorrichtung ist ferner dadurch gekennzeichnet, dass der Schwenkhebel mindestens einen Anschlag aufweist, der zur Begrenzung eines Stellweges des Schwenkhebels an einer Umfangsfläche des Fräsrades zur Anlage kommt.This also makes a particularly preferred milling device characterized in that the swivel lever has at least one stop has, to limit a travel of the Swivel lever on a peripheral surface of the milling wheel to the system comes.
Als Fräselemente können Noppen oder Schneiderollen vorgesehen sein. Besonders bevorzugt ist es jedoch, dass mindestens eines der Fräselemente ein Fräszahn mit einer einseitig ausgebildeten Schneidekante ist. Ein derartiges Fräselement gewährleistet eine hohe Schneidewirkung und gleichzeitig einen guten Transport des abgetragenen Bodenmaterials an der Wand des Schlitzes entlang.Knobs or cutting rollers can be provided as milling elements his. However, it is particularly preferred that at least one the milling elements have a milling tooth with a one-sided design Cutting edge is. Such a milling element ensures a high cutting effect and at the same time a good one Transport of the removed soil material on the wall of the Slot along.
Bei einer besonders bevorzugten Schlitzwandfräse sind mehrere Fräsräder in beliebiger Anzahl vorgesehen, welche parallele Drehachsen aufweisen. Eine besonders bevorzugte Ausführungsform weist vier Fräsräder auf, von denen jeweils zwei paarweise um dieselbe Drehachse drehbar angeordnet sind. Ein Querschnitt des Schlitzes im Boden ist bevorzugt rechteckig ausgebildet.In a particularly preferred trench wall cutter, there are several Any number of cutting wheels are provided, which are parallel Have axes of rotation. A particularly preferred embodiment has four cutting wheels, two of which are in pairs are rotatably arranged about the same axis of rotation. A cross section the slot in the bottom is preferably rectangular.
Die Erfindung wird weiter anhand von bevorzugten Ausführungsbeispielen erläutert, welche schematisch in den Zeichnungen dargestellt sind. In den Zeichnungen zeigen:
- Fig. 1
- eine teilweise geschnittene Vorderansicht einer Fräsvorrichtung; und
- Fig. 2
- eine Vorderansicht eines Fräsrades gemäß der vorliegenden Erfindung.
- Fig. 1
- a partially sectioned front view of a milling device; and
- Fig. 2
- a front view of a cutting wheel according to the present invention.
Die Fig. 1 zeigt eine Vorderansicht eines Ausführungsbeispieles
an einer Fräsvorrichtung. An einem als Trägerplatte ausgeführtem
Rahmen 20 sind über Lagerschilde zwei Fräsräder 12,
12' drehbar befestigt. Die Fräsräder 12, 12' sind dabei unmittelbar
nebeneinander mit parallel verlaufenden Drehachsen ausgebildet.
Am Rahmen 20 sind Hydraulikmotoren 15, 15' zum Antreiben
der Fräsräder befestigt und mit den Fräsrädern 12, 12'
wirkend verbunden.Fig. 1 shows a front view of an embodiment
on a milling device. On one designed as a
An den Fräsrädern 12, 12' sind als einseitig schneidende Fräszähne
ausgebildete erste Fräselemente 16 und zweite Fräselemente
18 angeordnet, wobei der Übersichtlichkeit halber nur
jeweils eine Art Fräselement 16, 18 dargestellt ist. Umfangsseitig
an den Fräsrädern 12, 12' sind zudem seitlich
verschwenkbare Klappzähne 14 angeordnet, welche Boden unterhalb
der Lagerschilder abräumen. On the
Die Fig. 2 zeigt ein Ausführungsbeispiel eines erfindungsgemäßen
Fräsrades 12. An einem Schwenkhebel 5 sind erste und zweite
Fräselemente 16, 18 verstellbar angeordnet. In dem in Fig.
2 dargestellten Zustand befindet sich dabei das zweite Fräselement
18 in einer ersten Position zum Abtragen von Bodenmaterial,
das zweite Fräselement 16 hingegen in einer rückgezogenen
zweiten Position. In dieser Stellung ragt das zweite
Fräselement 18 in radialer Richtung über das erste Fräselement
16 heraus. Eine derartige Anordnung ist zum Abtragen von Bodenmaterial
bei einer Drehung des Fräsrades im Uhrzeigersinn
vorgesehen.Fig. 2 shows an embodiment of an
Die ersten und zweiten Fräselemente 16, 18 sind als einseitig
schneidende Fräszähne ausgestaltet und weisen eine Schneidekante
19 auf. Sie sind mit dem Schwenkhebel 5 jeweils über
zwei Befestigungspunkte verbunden.The first and
Der Schwenkhebel 5 ist um eine Schwenkachse 45 verschwenkbar
am Fräsrad 12 angelenkt. Die Schwenkachse 45 verläuft dabei
parallel zu einer Drehachse 42 des Fräsrades 12. An der den
Fräselementen 16, 18 abgewandten Seite weist der Schwenkhebel
5 einen als Anschlagfläche ausgebildeten Anschlag 7 auf. In
dem dargestellten Betriebszustand zur Drehung im Uhrzeigersinn
liegt die Anschlagfläche linksseitig von der Schwenkachse 45
auf einer Umfangsfläche 9 des Fräsrades 12 an. Der Schwenkhebel
5 sowie die ersten und zweiten Fräselemente 16, 18 sind
spiegelsymmetrisch zu einer durch die Schwenkachse 45 verlaufende
Spiegelebene ausgebildet. Die den Anschlag 7 bildende
Anschlagfläche weist dabei einen kreisbogenförmigen Querschnitt
auf.The pivot lever 5 can be pivoted about a
An dem in Fig. 2 dargestellten Fräsrad 12 sind umfangsseitig
insgesamt zehn gleichartige Schwenkhebel 5 angeordnet.On the
Claims (11)
dadurch gekennzeichnet, dass das erste Fräselement (16) und das zweite Fräselement (18) verstellbar sind.Milling device (10) according to claim 1,
characterized in that the first milling element (16) and the second milling element (18) are adjustable.
dadurch gekennzeichnet, dass durch die Stelleinrichtung beim Verstellen des ersten Fräselementes (16) das zweite Fräselement (18) in die andere Position verstellbar ist.Milling device (10) according to claim 2,
characterized in that the second milling element (18) can be adjusted into the other position by the adjusting device when the first milling element (16) is adjusted.
dadurch gekennzeichnet, dass die Stelleinrichtung einen Antrieb zum Verstellen des Fräselementes (16, 18) aufweist.Milling device (10) according to one of claims 1 to 3,
characterized in that the actuating device has a drive for adjusting the milling element (16, 18).
dadurch gekennzeichnet, dass die Stelleinrichtung durch eine Kraft betätigbar ist, welche im Drehbetrieb vom anstehenden Boden ausgeübt wird.Milling device (10) according to one of claims 1 to 3,
characterized in that the actuating device can be actuated by a force which is exerted by the ground in rotation.
dadurch gekennzeichnet, dass die Stelleinrichtung mindestens einen an einer Umfangsfläche (9) des Fräsrades (12, 12') ausgebildeten Schwenkhebel (5) aufweist.Milling device (10) according to one of claims 1 to 5,
characterized in that the adjusting device has at least one swivel lever (5) formed on a peripheral surface (9) of the milling wheel (12, 12 ').
dadurch gekennzeichnet, dass der Schwenkhebel (5) eine Schwenkachse (45) aufweist, die parallel zu einer Drehachse (42) des Fräsrades (12, 12') ausgebildet ist.Milling device (10) according to claim 6,
characterized in that the pivot lever (5) has a pivot axis (45) which is formed parallel to an axis of rotation (42) of the milling wheel (12, 12 ').
dadurch gekennzeichnet, dass der Schwenkhebel (5) symmetrisch zur Schwenkachse (45) ausgebildet ist.Milling device (10) according to one of claims 6 or 7,
characterized in that the pivot lever (5) is symmetrical to the pivot axis (45).
dadurch gekennzeichnet, dass das erste und zweite Fräselement (16, 18) paarweise am Schwenkhebel (5) angeordnet sind.Milling device (10) according to one of claims 6 to 8,
characterized in that the first and second milling elements (16, 18) are arranged in pairs on the swivel lever (5).
dadurch gekennzeichnet, dass der Schwenkhebel (5) mindestens einen Anschlag (7) aufweist, der zur Begrenzung eines Stellweges des Schwenkhebels (5) an einer Umfangsfläche (9) des Fräsrades (12, 12') zur Anlage kommt.Milling device (10) according to one of claims 6 to 9,
characterized in that the swivel lever (5) has at least one stop (7) which comes to rest against a circumferential surface (9) of the cutting wheel (12, 12 ') to limit an adjustment path of the swivel lever (5).
dadurch gekennzeichnet, dass mindestens eines der Fräselemente (16, 18) ein Fräszahn mit einer einseitig ausgebildeten Schneidekante (19) ist.Milling device (10) according to one of claims 1 to 10,
characterized in that at least one of the milling elements (16, 18) is a milling tooth with a cutting edge (19) formed on one side.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10308539A DE10308539B3 (en) | 2003-02-27 | 2003-02-27 | Cutting device for cutting grooves in the ground comprises cutting elements arranged on the cutting wheels to remove soil using a rotary action |
DE10308539 | 2003-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1452686A1 true EP1452686A1 (en) | 2004-09-01 |
Family
ID=32240596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04001010A Withdrawn EP1452686A1 (en) | 2003-02-27 | 2004-01-19 | Pick holder for bidirectional milling devices for building diaphragm walls |
Country Status (11)
Country | Link |
---|---|
US (1) | US7178273B2 (en) |
EP (1) | EP1452686A1 (en) |
JP (1) | JP4194507B2 (en) |
KR (1) | KR100585884B1 (en) |
CN (1) | CN1266348C (en) |
CA (1) | CA2456996C (en) |
DE (1) | DE10308539B3 (en) |
HK (1) | HK1067394A1 (en) |
PL (1) | PL365305A1 (en) |
RU (1) | RU2268339C2 (en) |
SG (1) | SG122816A1 (en) |
Cited By (3)
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---|---|---|---|---|
DE202009001814U1 (en) | 2009-02-12 | 2009-04-30 | Bauer Maschinen Gmbh | Milling tooth for a trench wall cutter |
CN103015477A (en) * | 2013-01-18 | 2013-04-03 | 张永忠 | Clay groove forming machine |
CN112095700A (en) * | 2020-09-18 | 2020-12-18 | 江苏科弘岩土工程有限公司 | Double round slot milling machine cutter head device with pendulum sword unit |
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EP3299523B1 (en) * | 2016-09-21 | 2021-03-31 | BAUER Spezialtiefbau GmbH | Method and device for treating a foundation soil |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009001814U1 (en) | 2009-02-12 | 2009-04-30 | Bauer Maschinen Gmbh | Milling tooth for a trench wall cutter |
EP2218829A2 (en) | 2009-02-12 | 2010-08-18 | BAUER Maschinen GmbH | Cutting bit for a slotted wall cutter |
US8051588B2 (en) | 2009-02-12 | 2011-11-08 | Bauer Maschinen Gmbh | Cutting tooth for a trench wall cutter |
CN101806081B (en) * | 2009-02-12 | 2013-04-10 | 包尔机械有限公司 | Cutting bit for slotted wall cutter |
CN103015477A (en) * | 2013-01-18 | 2013-04-03 | 张永忠 | Clay groove forming machine |
CN103015477B (en) * | 2013-01-18 | 2014-12-03 | 中国石油大学(华东) | Clay groove forming machine |
CN112095700A (en) * | 2020-09-18 | 2020-12-18 | 江苏科弘岩土工程有限公司 | Double round slot milling machine cutter head device with pendulum sword unit |
Also Published As
Publication number | Publication date |
---|---|
KR100585884B1 (en) | 2006-06-07 |
PL365305A1 (en) | 2004-09-06 |
JP4194507B2 (en) | 2008-12-10 |
KR20040077506A (en) | 2004-09-04 |
RU2268339C2 (en) | 2006-01-20 |
CN1266348C (en) | 2006-07-26 |
RU2004103801A (en) | 2005-07-27 |
DE10308539B3 (en) | 2004-06-03 |
HK1067394A1 (en) | 2005-04-08 |
CA2456996C (en) | 2008-08-12 |
CN1525015A (en) | 2004-09-01 |
US7178273B2 (en) | 2007-02-20 |
JP2004257235A (en) | 2004-09-16 |
US20050000123A1 (en) | 2005-01-06 |
SG122816A1 (en) | 2006-06-29 |
CA2456996A1 (en) | 2004-08-27 |
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