EP3683362B1 - Trench wall cutter - Google Patents

Trench wall cutter Download PDF

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Publication number
EP3683362B1
EP3683362B1 EP20150905.6A EP20150905A EP3683362B1 EP 3683362 B1 EP3683362 B1 EP 3683362B1 EP 20150905 A EP20150905 A EP 20150905A EP 3683362 B1 EP3683362 B1 EP 3683362B1
Authority
EP
European Patent Office
Prior art keywords
drive unit
frame
motor
unit
motor unit
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.)
Active
Application number
EP20150905.6A
Other languages
German (de)
French (fr)
Other versions
EP3683362A2 (en
EP3683362A3 (en
Inventor
Tobias Griesemer
Sebastian Wedl
Maria Knünz
Adrian Fend
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.)
Liebherr Werk Nenzing GmbH
Original Assignee
Liebherr Werk Nenzing 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 Liebherr Werk Nenzing GmbH filed Critical Liebherr Werk Nenzing GmbH
Priority to EP21162496.0A priority Critical patent/EP3851586B1/en
Publication of EP3683362A2 publication Critical patent/EP3683362A2/en
Publication of EP3683362A3 publication Critical patent/EP3683362A3/en
Application granted granted Critical
Publication of EP3683362B1 publication Critical patent/EP3683362B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • 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
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • 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
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E02F3/3681—Rotators
    • 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
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets
    • E02F3/475—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets for making foundation slots
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids

Definitions

  • the present invention relates to a trench cutter according to the preamble of claim 1.
  • Trench wall cutters are available in many variants from the prior art, for example from the publication EP 1 666 671 A , known.
  • a wide variety of drive methods can be used for the milling tools of such trench wall cutters, which are used to break up the soil material when producing the soil trench.
  • one or more motors are used for the rotary drive of several cutting wheels via corresponding gears.
  • the object of the present invention is to provide a trench cutter with a drive unit that can be assembled and disassembled quickly and easily.
  • this object is achieved by a trench wall cutter having the features of claim 1.
  • the invention relates to a trench wall cutter for producing vertical trenches in the ground, which can be connected to a carrier device, comprising a frame, a motor unit and a drive unit which can be detachably connected to the frame.
  • the drive unit comprises a support structure, at least one gear arranged on the support structure, and at least one milling tool, which is connected to the gear and can be driven by the motor unit, for crushing soil material.
  • the motor unit can be releasably connected to the drive unit, the frame and the drive unit each having guide means which are designed such that the drive unit, in relation to a longitudinal axis of the frame, when the connection to the motor unit is released, can be inserted laterally into the frame. and can be pushed out of this.
  • the drive unit which is separate from the motor unit, can be pushed in and out from the side, which brings considerable advantages when carrying out maintenance work and enables the components to be exchanged in just a few steps.
  • the motor unit which is not subject to wear to the same extent as the gears, can remain in the installed position in or on the frame during assembly or maintenance work, while only the drive unit has to be dismantled or assembled. In particular, the assembly times are when entering and leaving Removal is therefore significantly shorter than with conventional trench cutters.
  • the simplified assembly and disassembly process also increases safety in the workplace. Potentially occurring errors in the exchange process are minimized by the small scope and the simple design of the overall process.
  • the drive unit has a motor mount to which the motor unit can be releasably connected and which is preferably arranged on the upper side of the support structure.
  • the engine mount can have mechanical connections as well as connections for hydraulic and/or electrical lines. These can be designed as a quick coupling or multi-coupling.
  • the trench wall cutter can comprise a plurality of drive units, each with an assigned motor unit.
  • the frame has a recess on at least one side, preferably on two opposite sides, through which the motor mount can be pushed when the drive unit is displaced using the guide means.
  • the motor mount In the assembled state, the motor mount therefore protrudes into the frame of the trench wall cutter and, after separation from the motor unit, can be displaced relative to the frame and pushed through the recess(es).
  • the recess thus has geometric dimensions that exceed those of the engine mount.
  • the guide means of the frame and the drive unit are designed as chamfers, the beveled surfaces of which contact one another in the connected state. During the lateral displacement of the drive unit relative to the frame, the beveled surfaces slide past one another. In this case, there can be freedom of movement perpendicular to the direction of insertion and removal. For example, when moving the drive unit, there can be a downward movement range (when the frame is aligned vertically), so that the drive unit must be pressed in the direction of the frame for contacting guidance by means of the guide means.
  • the guide means are preferably formed both on the frame and on the support structure.
  • the motor mount can be arranged between the guide means on the upper side of the support structure.
  • the frame has a recess on the underside into which a part, preferably an upper part, of the drive unit can be inserted, with a detachable connection of drive unit and frame viewed relative to the frame either by lateral insertion of the drive unit into the lateral recess or (in the case of a vertical orientation of the frame) from the bottom upwards introducing the drive unit into the lower recess can be produced.
  • the initial assembly of the drive unit or an assembly after replacement or maintenance of the motor unit can be carried out relative to the frame from bottom to top by pushing it into the lower recess.
  • This is therefore dimensioned in particular so that the motor mount can be pushed in together with the motor unit connected to it.
  • the drive unit can be installed and removed for assembly or maintenance purposes of wear parts such as gears and wear plates after the connection to the motor unit has been separated by lateral displacement of the drive unit in relation to the frame.
  • the guide means are arranged and designed in such a way that when the drive unit is introduced into the lower recess of the frame, the drive unit is centered and finely positioned relative to the frame.
  • the guide means thus fulfill a dual function. These are preferably designed as chamfers, with the slanted surfaces of the chamfers formed on the frame pointing downwards, so that when the drive unit is introduced from the bottom up, centering automatically takes place via the contacting and guiding of the respective slanted surfaces. This makes the installation process much easier and faster.
  • the drive unit can be introduced into the lower recess in a state in which the motor unit is connected to the motor mount.
  • the drive unit can be detachably connected to the lower end of the frame.
  • the motor unit can be detachably connected to the frame or to corresponding connections provided on the frame, it being possible for the connections to be used to produce a hydraulic and/or electrical supply to the motor unit.
  • the present disclosure also shows a trench wall cutter for the production of vertical soil trenches, which can be connected to a carrier device, comprising a frame, a motor unit and a drive unit, the drive unit having a carrier structure, at least one gear arranged on the carrier structure and at least one gear connected to the gear and a milling tool, which can be driven by the motor unit, for crushing soil material, and wherein the frame and the drive unit have connecting means, by means of which the frame and the drive unit can be releasably connected to one another are.
  • the motor unit can be releasably connected to the drive unit, with the connecting means being accessible from the outside, so that the connection between the drive unit and the frame can be established or released from the outside.
  • the assembly and disassembly of the drive unit on the frame is significantly simplified by the connecting means, which are easily accessible from the outside and which are preferably parts of a screw-nut connection.
  • the connecting means which are easily accessible from the outside and which are preferably parts of a screw-nut connection.
  • the frame has indentations which enable access to the connecting means from the outside, the frame preferably being designed in such a way that the parts of the connecting means which are accessible from the outside are inside the indentations and inside the outer contour of the frame which is extended beyond the indentations are arranged.
  • indentations which are arranged in particular on the side, the parts of the connecting means that are accessible for making or loosening the connection, in particular the nuts and screw heads of the screw connections, do not protrude beyond the outer contour of the frame, which would be obtained without indentations, so that the space required or the external dimensions of the trench wall cutter do not increase.
  • the indentations are preferably arranged on the sides of the frame where there are no recesses.
  • the present disclosure further shows a trench wall cutter for the production of vertical soil trenches, which is connectable to a carrier device, comprising a frame, a motor unit and a drive unit, the drive unit having a carrier structure, at least one arranged on the carrier structure gear and at least one milling tool connected to the gear and driven by the motor unit for crushing soil material, the frame and the drive unit each having connecting means by means of which the frame and the drive unit can be detachably connected to one another, the motor unit being detachably connected to the drive unit is, wherein the connecting means are accessible from the outside, so that the connection between the drive unit and the frame can be established or released from the outside and wherein the frame and the drive unit have guide means which are designed in such a way that the drive unit can be moved laterally when the connection to the motor unit is released can be inserted into and removed from the frame.
  • a carrier device 20 designed as a mobile cable excavator with a trench wall cutter 10 according to the invention is shown in a side view.
  • a carrier device 20 for the trench wall cutter according to the invention 10 other working machines such as hydraulic excavators or special civil engineering equipment are also used.
  • the figure 2 shows a detail of an embodiment of the trench wall cutter 10 according to the invention in a side view, in which the drive unit 12 and the lower end of the frame 7 are shown.
  • the trench wall cutter 10 comprises a frame 7, with the lower end of which a drive unit 12 is detachably connected.
  • the drive unit 12 includes a support structure 1, which has a supporting function for the other components of the drive unit 12 such as the milling tools (not shown).
  • a support structure 1 which has a supporting function for the other components of the drive unit 12 such as the milling tools (not shown).
  • gears 3 which are connected to receptacles 4 for milling tools designed as a milling wheel.
  • the support structure 1 has a substantially T-shaped cross-section, gears 3 being arranged at the same level on both sides of the longitudinal beam of the T-shaped cross-section.
  • the support structure 1 has wear plates 5 on the end faces (seen from the side).
  • the transmission 3 and the wear plates 5 are components of the drive unit 12 that are particularly susceptible to wear and therefore require intensive maintenance and must be replaced at regular intervals.
  • the entire drive unit 12 together with the motor unit(s) 9 connected thereto has to be dismantled for this and the corresponding components have to be replaced or serviced.
  • the present invention significantly simplifies and accelerates this exchange or assembly and disassembly process.
  • the drive unit 12 is reversibly connected to the underside of the frame 7 of the trench wall cutter 10 on its upper side (via the crossbeam of the T-shaped cross section seen from the side) via corresponding connecting means 8 .
  • the connecting means 8 form a screw-nut connection, the upper side of the support structure 1 and the lower area of the frame 7 having corresponding openings for the screws 8.
  • the trench wall cutter 10 can be fastened or hung on a carrier device 20 via the frame 7 .
  • the trench wall cutter 10 also includes at least one motor unit 9, by means of which the cutting wheels can be driven via the gear 3.
  • the energy supply of the motor unit(s) 9 is ensured by corresponding supply lines in or on the frame 7 .
  • the motor unit 9 can comprise or represent a hydraulic or electric motor.
  • the motor unit 9 is connected to the drive unit 12 via a motor mount 2 which is arranged on the upper side of the drive unit 12 and to which the motor unit 9 can be detachably connected.
  • a motor mount 2 which is arranged on the upper side of the drive unit 12 and to which the motor unit 9 can be detachably connected.
  • Corresponding connections for mechanical, electrical, hydraulic and/or other connections are provided for this purpose, which can be designed, for example, as quick-action or multi-couplings.
  • the connection of the motor unit 9 to the connections of the frame 7 is also detachable and can also be designed as a quick or multi-coupling.
  • the motor mount 2 protrudes into the frame 7 so that the motor unit 9 is arranged inside the frame 7 in the assembled state.
  • the frame 7 has a recess on the underside, into which when the drive unit 12 is installed, the motor mount 2 , possibly together with the motor unit 9 already connected to the motor mount 2 , can be inserted.
  • the upper side of the support structure 1 has guiding means 6 designed as chamfers, which correspond to corresponding guiding means 6 also designed as chamfers on the underside of the frame 7 at the edge of the recess.
  • the slanted surfaces of the chamfers 6 of the frame 7 point downwards, with the slanted surfaces of the chamfers 6 of the drive unit 12 and the frame 7 making contact in the assembled state.
  • the chamfers 6 act as an aid that the Center drive unit 12 on the last piece when pushing in. This simplifies the assembly of the drive unit 12 via the lower recess.
  • the drive unit 12 together with the motor unit 9 can be mounted on the frame 7 via the lower recess.
  • the frame 7 also has a further recess 13 on the side, the geometric dimensions of which exceed those of the motor unit 9 (seen from the side).
  • the recess 13 is open at the bottom and thus forms a continuous opening with the lower recess.
  • the chamfers 6 are aligned horizontally and parallel to one another (when the trench wall cutter 10 is vertically aligned) and are located on opposite edges of the lower recess.
  • the chamfers 6 thus serve as guide means, via which the drive unit 12 can be laterally displaced horizontally in relation to the frame 7 (when the trench wall cutter 10 is aligned vertically).
  • the connection via the connecting means 8 must be released for this.
  • the drive unit 12 can therefore be pushed laterally out of the frame 7 or pushed into it without the motor unit 9 after the connection between the motor mount 2 and the motor unit 9 has been released.
  • the guidance along the guide means 6 facilitates the process of displacement. This results in a simplified and accelerated disassembly and assembly process for the drive unit 12 , with the motor unit 9 remaining in the frame 7 . This is particularly advantageous in cases in which the drive unit 12 is to be removed and reinstalled for the purpose of replacing or servicing the wear-prone components such as gears 3, cutting wheel mounts 4 or wear plates 5.
  • the guide means 6 consequently fulfill a double function. On the one hand, they serve to center the drive unit 12 during assembly from bottom to top (with the frame 7 aligned vertically) via the lower recess (in which the motor unit 9 can already be connected to the motor mount 2) and, on the other hand, to guide the drive unit 12 during lateral Sliding in or out via the lateral recess 13 (in this case the motor unit 9 is not connected to the motor mount 2).
  • the frame 7 can have such a recess 13 on both sides, so that it is possible to slide it in and out from both sides. Provision can also be made for the geometric dimensions of the lateral recess 13 to exceed those of the motor mount 2 and the motor unit 9 in the connected state, so that the drive unit 12 can be installed and removed laterally together with the motor unit 9 .
  • the drive unit 12 can either extend over the entire or essentially over the entire width of the frame 7, so that only a single drive unit 12 is used in the trench cutter according to the invention. Alternatively, several, in particular two, drive units 12 can be used side by side, each of which is assigned to a motor unit 9 . In this case, there is a lower recess for a drive unit 12 on the underside of the frame 7. Furthermore, in this case, the frame 7 expediently has a recess 13 on both sides, so that each of the drive units 12 fits into the frame 7 on the corresponding side can be inserted.
  • the frame 7 has in the lower area of the front and back (which can be seen in the figure 2 located to the right and left of the lateral recess 13) indentations 11, within which the externally accessible parts (in particular the nuts) of the connecting means 8 are located in the connected state.
  • the screw-nut connections between the drive unit 12 and the frame 7 can be easily loosened or fixed from the outside without the need for additional connecting elements inside the frame 7, which would make assembly and disassembly more difficult.
  • the nut 8 is located completely within the indentations 11, ie within the outer contour of the frame 7, which would be obtained if the outer contour were to be extended beyond the indentations 11, ie the outer contour without indentations 11 would result. This saves space and prevents the connecting means 8 from colliding with the walls of the trench in the ground to be created by the trench wall cutter 10 .
  • the trench cutter 10 is shown in a state in which the drive unit 12 is dismantled from the frame 7, with the motor unit 9 being connected to the motor mount 2.
  • Such a dismantling takes place in relation to the (vertically oriented) frame 7 from top to bottom via the lower recess of the frame 7.
  • the chamfers 6 of the frame 7 and the support structure 1 can be seen individually.

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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)
  • Crushing And Pulverization Processes (AREA)

Description

Die vorliegende Erfindung betrifft eine Schlitzwandfräse nach dem Oberbegriff des Anspruchs 1.The present invention relates to a trench cutter according to the preamble of claim 1.

Schlitzwandfräsen sind in vielfältigen Varianten aus dem Stand der Technik, beispielsweise aus der Druckschrift EP 1 666 671 A , bekannt. Für die Fräswerkzeuge derartiger Schlitzwandfräsen, welche zur Zerkleinerung des Bodenmaterials bei der Herstellung des Bodenschlitzes eingesetzt werden, können verschiedenste Antriebsmethoden zum Einsatz kommen. Häufig werden dabei ein oder mehrere Motoren zum rotatorischen Antrieb von mehreren Fräsrädern über entsprechende Getriebe verwendet.Trench wall cutters are available in many variants from the prior art, for example from the publication EP 1 666 671 A , known. A wide variety of drive methods can be used for the milling tools of such trench wall cutters, which are used to break up the soil material when producing the soil trench. Frequently, one or more motors are used for the rotary drive of several cutting wheels via corresponding gears.

Bei Schlitzwandfräsen werden pro Antriebseinheit üblicherweise zwei Fräsräder installiert. Dementsprechend befinden sich mindestens zwei den jeweiligen Fräsrädem zugeordnete Getriebe pro Schlitzwandfräse bzw. pro Antriebseinheit im Einsatz. Diese Getriebe sowie weitere Komponenten wie an der Antriebseinheit montierte Verschleißbleche sind vom üblichen Fräsverschleiß betroffen und müssen daher regelmäßig gewartet bzw. ausgetauscht werden. Somit ist nicht nur die Erstmontage der Antriebseinheit ein relevanter Arbeitsschritt, sondern auch der sich wiederholende notwendige Aus- und Einbau im Wartungs- bzw. Verschleißfall.In the case of trench cutters, two cutting wheels are usually installed per drive unit. Accordingly, at least two gears assigned to the respective cutting wheels are in use per trench wall cutter or per drive unit. These gears and other components such as wear plates mounted on the drive unit are affected by normal milling wear and must therefore be serviced or replaced on a regular basis. Thus, not only the initial assembly of the drive unit is a relevant work step, but also the repetitive removal and installation necessary in the event of maintenance or wear.

Beim Ein- und Ausbau wird üblicherweise jeweils die komplette Antriebseinheit montiert bzw. demontiert, um Zugang zu den Getrieben zu schaffen. Dieser Umtauschprozess erweist sich typischerweise als umständlich und zeitaufwändig.During assembly and disassembly, the complete drive unit is usually assembled or disassembled in order to gain access to the gears. This exchange process typically proves to be cumbersome and time-consuming.

Vor diesem Hintergrund liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine Schlitzwandfräse mit einer Antriebseinheit bereitzustellen, welche schnell und einfach montiert und demontiert werden kann.Against this background, the object of the present invention is to provide a trench cutter with a drive unit that can be assembled and disassembled quickly and easily.

Erfindungsgemäß wird diese Aufgabe durch eine Schlitzwandfräse mit den Merkmalen des Anspruchs 1 gelöst.According to the invention, this object is achieved by a trench wall cutter having the features of claim 1.

Demnach betrifft die Erfindung eine Schlitzwandfräse zur Herstellung von vertikalen Bodenschlitzen, welche mit einem Trägergerät verbindbar ist, umfassend einen Rahmen, eine Motoreinheit und eine mit dem Rahmen lösbar verbindbare Antriebseinheit. Die Antriebseinheit umfasst eine Trägerstruktur, mindestens ein an der Trägerstruktur angeordnetes Getriebe sowie mindestens ein mit dem Getriebe verbundenes und von der Motoreinheit antreibbares Fräswerkzeug zur Zerkleinerung von Bodenmaterial. Erfindungsgemäß ist die Motoreinheit mit der Antriebseinheit lösbar verbindbar, wobei der Rahmen und die Antriebseinheit jeweils Führungsmittel aufweisen, welche so ausgestaltet sind, dass die Antriebseinheit, in Bezug auf eine Längsachse des Rahmens, bei gelöster Verbindung mit der Motoreinheit, seitlich in den Rahmen ein- und aus diesem herausschiebbar ist.Accordingly, the invention relates to a trench wall cutter for producing vertical trenches in the ground, which can be connected to a carrier device, comprising a frame, a motor unit and a drive unit which can be detachably connected to the frame. The drive unit comprises a support structure, at least one gear arranged on the support structure, and at least one milling tool, which is connected to the gear and can be driven by the motor unit, for crushing soil material. According to the invention, the motor unit can be releasably connected to the drive unit, the frame and the drive unit each having guide means which are designed such that the drive unit, in relation to a longitudinal axis of the frame, when the connection to the motor unit is released, can be inserted laterally into the frame. and can be pushed out of this.

Das seitliche Ein- und Herausschieben der von der Motoreinheit getrennten Antriebseinheit bringt erhebliche Vorteile beim Durchführen der Instandhaltungsarbeiten mit sich und ermöglicht einen Umtausch der Komponenten in wenigen Schritten. Die Motoreinheit, die nicht im gleichen Maße dem Verschleiß unterliegt wie die Getriebe, kann bei Montage- bzw. Wartungsarbeiten in der eingebauten Position in bzw. an dem Rahmen verbleiben, während lediglich die Antriebseinheit demontiert bzw. montiert werden muss. Insbesondere die Montagezeiten sind beim Ein- und Ausbau daher deutlich kürzer als bei herkömmlichen Schlitzwandfräsen. Durch den vereinfachten Montage- und Demontageprozess wird ebenfalls die Sicherheit am Arbeitsplatz erhöht. Potentiell auftretende Fehler im Umtauschprozess werden durch den geringen Umfang und die einfache Gestaltung des Gesamtprozesses minimiert.The drive unit, which is separate from the motor unit, can be pushed in and out from the side, which brings considerable advantages when carrying out maintenance work and enables the components to be exchanged in just a few steps. The motor unit, which is not subject to wear to the same extent as the gears, can remain in the installed position in or on the frame during assembly or maintenance work, while only the drive unit has to be dismantled or assembled. In particular, the assembly times are when entering and leaving Removal is therefore significantly shorter than with conventional trench cutters. The simplified assembly and disassembly process also increases safety in the workplace. Potentially occurring errors in the exchange process are minimized by the small scope and the simple design of the overall process.

Vorteilhafte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung.Advantageous embodiments of the invention result from the dependent claims and the following description.

In einer Ausführungsform ist vorgesehen, dass die Antriebseinheit eine Motoraufnahme aufweist, mit welcher die Motoreinheit lösbar verbindbar ist und welche vorzugsweise an der Oberseite der Trägerstruktur angeordnet ist. Zur Demontage der Antriebseinheit müssen lediglich die Verbindung zwischen Motoreinheit und Motoraufnahme und die Verbindung zwischen Antriebseinheit und Rahmen gelöst werden, sodass die Antriebseinheit seitlich in Bezug auf den Rahmen der Schlitzwandfräse verschoben werden kann, während die Motoreinheit in der eingebauten Position verbleibt. Die Motoraufnahme kann mechanische Anschlüsse sowie Anschlüsse für hydraulische und/oder elektrische Leitungen aufweisen. Diese können als Schnellkupplung bzw. Multikupplung ausgebildet sein.In one embodiment it is provided that the drive unit has a motor mount to which the motor unit can be releasably connected and which is preferably arranged on the upper side of the support structure. To dismantle the drive unit, all you have to do is loosen the connection between the motor unit and the motor mount and the connection between the drive unit and the frame, so that the drive unit can be moved laterally in relation to the frame of the trench cutter while the motor unit remains in the installed position. The engine mount can have mechanical connections as well as connections for hydraulic and/or electrical lines. These can be designed as a quick coupling or multi-coupling.

Es können mehrere Motoreinheiten und dementsprechend mehrere Motoraufnahmen vorgesehen sein. Ferner kann die Schlitzwandfräse mehrere Antriebseinheiten mit je einer zugeordneten Motoreinheit umfassen.Several motor units and accordingly several motor mounts can be provided. Furthermore, the trench wall cutter can comprise a plurality of drive units, each with an assigned motor unit.

In einer weiteren Ausführungsform ist vorgesehen, dass der Rahmen an wenigstens einer Seite, vorzugsweise an zwei gegenüberliegenden Seiten, eine Aussparung aufweist, durch die bei einer anhand der Führungsmittel führbaren Verschiebung der Antriebseinheit die Motoraufnahme hindurchschiebbar ist. Die Motoraufnahme ragt also im montierten Zustand in den Rahmen der Schlitzwandfräse hinein und kann nach Trennung von der Motoreinheit relativ zum Rahmen verschoben und durch die Aussparung(n) hindurchgeschoben werden. Die Aussparung weist also geometrische Maße auf, die diejenigen der Motoraufnahme überschreiten.In a further embodiment, it is provided that the frame has a recess on at least one side, preferably on two opposite sides, through which the motor mount can be pushed when the drive unit is displaced using the guide means. In the assembled state, the motor mount therefore protrudes into the frame of the trench wall cutter and, after separation from the motor unit, can be displaced relative to the frame and pushed through the recess(es). The recess thus has geometric dimensions that exceed those of the engine mount.

In einer weiteren Ausführungsform ist vorgesehen, dass die Führungsmittel des Rahmens und der Antriebseinheit als Fasen ausgestaltet sind, deren abgeschrägte Flächen im verbundenen Zustand einander kontaktieren. Bei der seitlichen Verschiebung der Antriebseinheit relativ zu dem Rahmen gleiten die abgeschrägten Flächen also aneinander vorbei. Hierbei kann ein Bewegungsfreiraum senkrecht zur Ein- und Ausschieberichtung bestehen. Beispielsweise kann beim Verschieben der Antriebseinheit ein Bewegungsspielraum nach unten (bei vertikaler Ausrichtung des Rahmens) bestehen, sodass für eine kontaktierende Führung mittels der Führungsmittel die Antriebseinheit in Richtung des Rahmens gedrückt werden muss.In a further embodiment it is provided that the guide means of the frame and the drive unit are designed as chamfers, the beveled surfaces of which contact one another in the connected state. During the lateral displacement of the drive unit relative to the frame, the beveled surfaces slide past one another. In this case, there can be freedom of movement perpendicular to the direction of insertion and removal. For example, when moving the drive unit, there can be a downward movement range (when the frame is aligned vertically), so that the drive unit must be pressed in the direction of the frame for contacting guidance by means of the guide means.

Die Führungsmittel sind vorzugsweise sowohl an dem Rahmen als auch an der Trägerstruktur ausgebildet. Insbesondere kann die Motoraufnahme zwischen den Führungsmitteln an der Oberseite der Trägerstruktur angeordnet sein.The guide means are preferably formed both on the frame and on the support structure. In particular, the motor mount can be arranged between the guide means on the upper side of the support structure.

In einer weiteren Ausführungsform ist vorgesehen, dass der Rahmen an der Unterseite eine Ausnehmung aufweist, in welche ein Teil, vorzugsweise ein oberer Teil, der Antriebseinheit einbringbar ist, wobei eine lösbare Verbindung von Antriebseinheit und Rahmen relativ zum Rahmen gesehen entweder über seitliches Einbringen der Antriebseinheit in die seitliche Aussparung oder ein (bei vertikaler Ausrichtung des Rahmens) von unten nach oben gerichtetes Einbringen der Antriebseinheit in die untere Ausnehmung herstellbar ist.In a further embodiment it is provided that the frame has a recess on the underside into which a part, preferably an upper part, of the drive unit can be inserted, with a detachable connection of drive unit and frame viewed relative to the frame either by lateral insertion of the drive unit into the lateral recess or (in the case of a vertical orientation of the frame) from the bottom upwards introducing the drive unit into the lower recess can be produced.

So kann die Erstmontage der Antriebseinheit oder eine Montage nach Auswechseln oder Warten der Motoreinheit, vorzugsweise bei mit der Motoraufnahme verbundener Motoreinheit, relativ zum Rahmen gesehen von unten nach oben durch Einschieben in die untere Ausnehmung erfolgen. Diese ist daher insbesondere so dimensioniert, dass die Motoraufnahme mitsamt damit verbundener Motoreinheit eingeschoben werden kann. Ein Ein- und Ausbau der Antriebseinheit zu Montage- bzw. Wartungszwecken der Verschleißteile wie Getriebe und Verschleißbleche kann dagegen nach Trennung der Verbindung zur Motoreinheit durch seitliches Verschieben der Antriebseinheit in Bezug auf den Rahmen erfolgen.Thus, the initial assembly of the drive unit or an assembly after replacement or maintenance of the motor unit, preferably with the motor unit connected to the motor mount, can be carried out relative to the frame from bottom to top by pushing it into the lower recess. This is therefore dimensioned in particular so that the motor mount can be pushed in together with the motor unit connected to it. On the other hand, the drive unit can be installed and removed for assembly or maintenance purposes of wear parts such as gears and wear plates after the connection to the motor unit has been separated by lateral displacement of the drive unit in relation to the frame.

In einer weiteren Ausführungsform ist vorgesehen, dass die Führungsmittel so angeordnet und ausgebildet sind, dass beim Einbringen der Antriebseinheit in die untere Ausnehmung des Rahmens eine Zentrierung und Feinpositionierung der Antriebseinheit relativ zum Rahmen stattfindet. Die Führungsmittel erfüllen also eine Doppelfunktion. Vorzugsweise sind diese als Fasen ausgebildet, wobei die abgeschrägten Flächen der an dem Rahmen ausgebildeten Fasen nach unten weisen, sodass bei einem Einbringen der Antriebseinheit von unten nach oben automatisch eine Zentrierung über die Kontaktierung und Führung der jeweiligen abgeschrägten Flächen erfolgt. Dadurch wird der Einbauprozess wesentlich erleichtert und beschleunigt.In a further embodiment it is provided that the guide means are arranged and designed in such a way that when the drive unit is introduced into the lower recess of the frame, the drive unit is centered and finely positioned relative to the frame. The guide means thus fulfill a dual function. These are preferably designed as chamfers, with the slanted surfaces of the chamfers formed on the frame pointing downwards, so that when the drive unit is introduced from the bottom up, centering automatically takes place via the contacting and guiding of the respective slanted surfaces. This makes the installation process much easier and faster.

In einer weiteren Ausführungsform ist vorgesehen, dass die Antriebseinheit in einem Zustand, in der die Motoreinheit mit der Motoraufnahme verbunden ist, in die untere Ausnehmung einbringbar ist.In a further embodiment it is provided that the drive unit can be introduced into the lower recess in a state in which the motor unit is connected to the motor mount.

In einer weiteren Ausführungsform ist vorgesehen, dass die Antriebseinheit mit dem unteren Ende des Rahmens lösbar verbindbar ist.In a further embodiment it is provided that the drive unit can be detachably connected to the lower end of the frame.

In einer weiteren Ausführungsform ist vorgesehen, dass die Motoreinheit mit dem Rahmen bzw. mit entsprechenden am Rahmen vorgesehen Anschlüssen lösbar verbindbar ist, wobei die Anschlüsse der Herstellung einer hydraulischen und/oder elektrischen Versorgung der Motoreinheit dienen können.In a further embodiment it is provided that the motor unit can be detachably connected to the frame or to corresponding connections provided on the frame, it being possible for the connections to be used to produce a hydraulic and/or electrical supply to the motor unit.

Die vorliegende Offenbarung zeigt weiterhin eine Schlitzwandfräse zur Herstellung von vertikalen Bodenschlitzen, welche mit einem Trägergerät verbindbar ist, umfassend einen Rahmen, eine Motoreinheit und eine Antriebseinheit, wobei die Antriebseinheit eine Trägerstruktur, mindestens ein an der Trägerstruktur angeordnetes Getriebe sowie mindestens ein mit dem Getriebe verbundenes und von der Motoreinheit antreibbares Fräswerkzeug zur Zerkleinerung von Bodenmaterial umfasst und wobei der Rahmen und die Antriebseinheit Verbindungsmittel aufweisen, mittels welchen der Rahmen und die Antriebseinheit miteinander lösbar verbindbar sind. Dabei ist die Motoreinheit mit der Antriebseinheit lösbar verbindbar, wobei die Verbindungsmittel von außen zugänglich sind, sodass ein Herstellen oder Lösen der Verbindung zwischen Antriebseinheit und Rahmen von außen durchführbar ist.The present disclosure also shows a trench wall cutter for the production of vertical soil trenches, which can be connected to a carrier device, comprising a frame, a motor unit and a drive unit, the drive unit having a carrier structure, at least one gear arranged on the carrier structure and at least one gear connected to the gear and a milling tool, which can be driven by the motor unit, for crushing soil material, and wherein the frame and the drive unit have connecting means, by means of which the frame and the drive unit can be releasably connected to one another are. The motor unit can be releasably connected to the drive unit, with the connecting means being accessible from the outside, so that the connection between the drive unit and the frame can be established or released from the outside.

Durch die von außen einfach zugänglichen Verbindungsmittel, bei denen es sich vorzugsweise um Teile einer Schrauben-Mutter-Verbindung handelt, wird die Montage und Demontage der Antriebseinheit an dem Rahmen signifikant vereinfacht. Es ergibt sich eine enorme Zeitersparnis und eine Erhöhung der Sicherheit am Arbeitsplatz gegenüber Ausführungsformen, bei denen bei der Demontage bzw. Montage Verbindungselemente innerhalb des Rahmens gelöst oder angebracht werden müssen.The assembly and disassembly of the drive unit on the frame is significantly simplified by the connecting means, which are easily accessible from the outside and which are preferably parts of a screw-nut connection. There is an enormous saving of time and an increase in safety at the workplace compared to embodiments in which connecting elements have to be loosened or attached within the frame during disassembly or assembly.

Weiter wird gezeigt, dass der Rahmen Einbuchtungen aufweist, welche einen Zugriff auf die Verbindungsmittel von außen ermöglichen, wobei der Rahmen vorzugsweise so ausgebildet ist, dass die von außen zugänglichen Teile der Verbindungsmittel innerhalb der Einbuchtungen und innerhalb der über die Einbuchtungen hinaus verlängerten Außenkontur des Rahmens angeordnet sind.It is also shown that the frame has indentations which enable access to the connecting means from the outside, the frame preferably being designed in such a way that the parts of the connecting means which are accessible from the outside are inside the indentations and inside the outer contour of the frame which is extended beyond the indentations are arranged.

Durch das Vorsehen von Einbuchtungen, welche insbesondere seitlich angeordnet sind, ragen die zum Herstellen oder Lösen der Verbindung zugänglichen Teile der Verbindungsmittel, insbesondere die Muttern und Schraubenköpfe der Schraubverbindungen, nicht über die Außenkontur des Rahmens, welche man ohne Einbuchtungen erhalten würde, hinaus, sodass sich der Platzbedarf bzw. die Außenmaße der Schlitzwandfräse nicht erhöhen. Vorzugsweise sind die Einbuchtungen an den Seiten des Rahmens angeordnet, an denen sich keine Aussparungen befinden.By providing indentations, which are arranged in particular on the side, the parts of the connecting means that are accessible for making or loosening the connection, in particular the nuts and screw heads of the screw connections, do not protrude beyond the outer contour of the frame, which would be obtained without indentations, so that the space required or the external dimensions of the trench wall cutter do not increase. The indentations are preferably arranged on the sides of the frame where there are no recesses.

Die vorliegende Offenbarung zeigt weiterhin eine Schlitzwandfräse zur Herstellung von vertikalen Bodenschlitzen, welche mit einem Trägergerät verbindbar ist, umfassend einen Rahmen, eine Motoreinheit und eine Antriebseinheit, wobei die Antriebseinheit eine Trägerstruktur, mindestens ein an der Trägerstruktur angeordnetes Getriebe sowie mindestens ein mit dem Getriebe verbundenes und von der Motoreinheit antreibbares Fräswerkzeug zur Zerkleinerung von Bodenmaterial umfasst, wobei der Rahmen und die Antriebseinheit jeweils Verbindungsmittel aufweisen, mittels welchen der Rahmen und die Antriebseinheit miteinander lösbar verbindbar sind, wobei die Motoreinheit mit der Antriebseinheit lösbar verbindbar ist, wobei die Verbindungsmittel von außen zugänglich sind, sodass ein Herstellen oder Lösen der Verbindung zwischen Antriebseinheit und Rahmen von außen durchführbar ist und wobei der Rahmen und die Antriebseinheit Führungsmittel aufweisen, welche so ausgestaltet sind, dass die Antriebseinheit bei gelöster Verbindung mit der Motoreinheit seitlich in den Rahmen einschiebbar und aus diesem entfernbar ist.The present disclosure further shows a trench wall cutter for the production of vertical soil trenches, which is connectable to a carrier device, comprising a frame, a motor unit and a drive unit, the drive unit having a carrier structure, at least one arranged on the carrier structure gear and at least one milling tool connected to the gear and driven by the motor unit for crushing soil material, the frame and the drive unit each having connecting means by means of which the frame and the drive unit can be detachably connected to one another, the motor unit being detachably connected to the drive unit is, wherein the connecting means are accessible from the outside, so that the connection between the drive unit and the frame can be established or released from the outside and wherein the frame and the drive unit have guide means which are designed in such a way that the drive unit can be moved laterally when the connection to the motor unit is released can be inserted into and removed from the frame.

Hierbei werden die Vorteile und Merkmale der beiden zuvor beschriebenen Schlitzwandfräsen kombiniert, sodass auf die spezifischen Vorteile und Merkmale sowie die möglichen weiteren Ausführungsformen an dieser Stelle nicht noch einmal eingegangen werden muss.The advantages and features of the two trench wall cutters described above are combined here, so that the specific advantages and features as well as the possible further embodiments do not have to be discussed again at this point.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus dem nachfolgend anhand der Figuren erläuterten Ausführungsbeispiel. Es zeigen:

Figur 1:
ein Trägergerät mit einer erfindungsgemäßen Schlitzwandfräse in einer Seitenansicht;
Figur 2:
ein Ausführungsbeispiel der erfindungsgemäßen Schlitzwandfräse in montiertem Zustand in einer Seitenansicht; und
Figur 3:
das Ausführungsbeispiel der Schlitzwandfräse gemäß Figur 2 in einem demontierten Zustand.
Further features, details and advantages of the invention result from the exemplary embodiment explained below with reference to the figures. Show it:
Figure 1:
a carrier device with a trench wall cutter according to the invention in a side view;
Figure 2:
an embodiment of the trench wall cutter according to the invention in the assembled state in a side view; and
Figure 3:
the embodiment of the trench wall cutter according to figure 2 in a dismantled state.

In der Figur 1 ist ein als mobiler Seilbagger ausgeführtes Trägergerät 20 mit einer erfindungsgemäßen Schlitzwandfräse 10 in einer Seitenansicht dargestellt. Selbstverständlich können als Trägergerät 20 für die erfindungsgemäße Schlitzwandfräse 10 auch andere Arbeitsmaschinen wie Hydraulikbagger oder Spezialtiefbaugeräte zum Einsatz kommen.In the figure 1 a carrier device 20 designed as a mobile cable excavator with a trench wall cutter 10 according to the invention is shown in a side view. Of course, as a carrier device 20 for the trench wall cutter according to the invention 10 other working machines such as hydraulic excavators or special civil engineering equipment are also used.

Die Figur 2 zeigt einen Ausschnitt eines Ausführungsbeispiels der erfindungsgemäßen Schlitzwandfräse 10 in einer Seitenansicht, in dem die Antriebseinheit 12 und das untere Ende des Rahmens 7 dargestellt sind. Die Schlitzwandfräse 10 umfasst einen Rahmen 7, mit dessen unterem Ende eine Antriebseinheit 12 lösbar verbunden ist.The figure 2 shows a detail of an embodiment of the trench wall cutter 10 according to the invention in a side view, in which the drive unit 12 and the lower end of the frame 7 are shown. The trench wall cutter 10 comprises a frame 7, with the lower end of which a drive unit 12 is detachably connected.

Die Antriebseinheit 12 umfasst eine Trägerstruktur 1, welche eine tragende Funktion für die weiteren Komponenten der Antriebseinheit 12 wie die Fräswerkzeuge (nicht gezeigt) hat. Im unteren Bereich der Trägerstruktur 1 befinden sich mehrere Getriebe 3, mit welchen Aufnahmen 4 für als Fräsrad ausgebildete Fräswerkzeuge verbunden sind. Die Trägerstruktur 1 hat von der Seite gesehen einen im Wesentlichen T-förmigen Querschnitt, wobei zu beiden Seiten des Längsbalkens des T-förmigen Querschnitts auf gleicher Höhe Getriebe 3 angeordnet sind. An den (von der Seite aus gesehen) Stirnseiten weist die Trägerstruktur 1 Verschleißbleche 5 auf.The drive unit 12 includes a support structure 1, which has a supporting function for the other components of the drive unit 12 such as the milling tools (not shown). In the lower area of the support structure 1 there are several gears 3, which are connected to receptacles 4 for milling tools designed as a milling wheel. Seen from the side, the support structure 1 has a substantially T-shaped cross-section, gears 3 being arranged at the same level on both sides of the longitudinal beam of the T-shaped cross-section. The support structure 1 has wear plates 5 on the end faces (seen from the side).

Die Getriebe 3 und die Verschleißbleche 5 stellen besonders verschleißanfällige und daher wartungsintensive Bauteile der Antriebseinheit 12 dar, welche in regelmäßigen Intervallen ausgetauscht werden müssen. Herkömmlicherweise muss hierfür die gesamte Antriebseinheit 12 mitsamt damit verbundener Motoreinheit(en) 9 demontiert und die entsprechenden Bauteile ausgetauscht oder gewartet werden. Die vorliegende Erfindung vereinfacht und beschleunigt diesen Umtausch- bzw. Montage- und Demontageprozess signifikant.The transmission 3 and the wear plates 5 are components of the drive unit 12 that are particularly susceptible to wear and therefore require intensive maintenance and must be replaced at regular intervals. Conventionally, the entire drive unit 12 together with the motor unit(s) 9 connected thereto has to be dismantled for this and the corresponding components have to be replaced or serviced. The present invention significantly simplifies and accelerates this exchange or assembly and disassembly process.

Die Antriebseinheit 12 wird an deren Oberseite (über den von der Seite aus gesehenen Querbalken des T-förmigen Querschnitts) über entsprechende Verbindungsmittel 8 mit der Unterseite des Rahmens 7 der Schlitzwandfräse 10 reversibel verbunden. Die Verbindungsmittel 8 bilden eine Schrauben-Mutter-Verbindung, wobei die Oberseite der Trägerstruktur 1 und der untere Bereich des Rahmens 7 entsprechende Öffnungen für die Schrauben 8 aufweisen.The drive unit 12 is reversibly connected to the underside of the frame 7 of the trench wall cutter 10 on its upper side (via the crossbeam of the T-shaped cross section seen from the side) via corresponding connecting means 8 . The connecting means 8 form a screw-nut connection, the upper side of the support structure 1 and the lower area of the frame 7 having corresponding openings for the screws 8.

Die erfindungsgemäße Schlitzwandfräse 10 kann über den Rahmen 7 an einem Trägergerät 20 befestigt bzw. aufgehängt werden. Die Schlitzwandfräse 10 umfasst ferner mindestens eine Motoreinheit 9, mittels welcher die Fräsräder über die Getriebe 3 antreibbar sind. Die Energieversorgung der Motoreinheit(en) 9 wird durch entsprechende Versorgungsleitungen in bzw. an dem Rahmen 7 sichergestellt. Die Motoreinheit 9 kann einen Hydraulik- oder Elektromotor umfassen bzw. darstellen.The trench wall cutter 10 according to the invention can be fastened or hung on a carrier device 20 via the frame 7 . The trench wall cutter 10 also includes at least one motor unit 9, by means of which the cutting wheels can be driven via the gear 3. The energy supply of the motor unit(s) 9 is ensured by corresponding supply lines in or on the frame 7 . The motor unit 9 can comprise or represent a hydraulic or electric motor.

Die Verbindung der Motoreinheit 9 mit der Antriebseinheit 12 erfolgt über eine an der Oberseite der Antriebseinheit 12 angeordnete Motoraufnahme 2, mit welcher die Motoreinheit 9 lösbar verbindbar ist. Hierfür sind entsprechende Anschlüsse für mechanische, elektrische, hydraulische und/oder sonstige Verbindungen vorgesehen, welche beispielsweise als Schnell- bzw. Multikupplung ausgeführt sein können. Auch die Verbindung der Motoreinheit 9 mit den Anschlüssen des Rahmens 7 ist lösbar und kann ebenfalls als Schnell- bzw. Multikupplung ausgeführt sein.The motor unit 9 is connected to the drive unit 12 via a motor mount 2 which is arranged on the upper side of the drive unit 12 and to which the motor unit 9 can be detachably connected. Corresponding connections for mechanical, electrical, hydraulic and/or other connections are provided for this purpose, which can be designed, for example, as quick-action or multi-couplings. The connection of the motor unit 9 to the connections of the frame 7 is also detachable and can also be designed as a quick or multi-coupling.

Die Motoraufnahme 2 ragt in den Rahmen 7 hinein, sodass im montierten Zustand die Motoreinheit 9 innerhalb des Rahmens 7 angeordnet ist. Hierfür weist der Rahmen 7 an der Unterseite eine Ausnehmung auf, in welche bei einer Montage der Antriebseinheit 12 die Motoraufnahme 2, ggf. zusammen mit der bereits mit der Motoraufnahme 2 verbundenen Motoreinheit 9, einbringbar ist.The motor mount 2 protrudes into the frame 7 so that the motor unit 9 is arranged inside the frame 7 in the assembled state. For this purpose, the frame 7 has a recess on the underside, into which when the drive unit 12 is installed, the motor mount 2 , possibly together with the motor unit 9 already connected to the motor mount 2 , can be inserted.

Die Oberseite der Trägerstruktur 1 weist als Fasen ausgebildete Führungsmittel 6 auf, welche mit entsprechenden ebenfalls als Fasen an der Unterseite des Rahmens 7 am Rand der Ausnehmung ausgebildeten Führungsmitteln 6 korrespondieren. Die abgeschrägten Flächen der Fasen 6 des Rahmens 7 weisen nach unten, wobei sich die abgeschrägten Flächen der Fasen 6 der Antriebseinheit 12 und des Rahmens 7 im montierten Zustand kontaktieren. Beim Einbringen der Antriebseinheit 12 in die untere Ausnehmung fungieren die Fasen 6 als Hilfsmittel, welche die Antriebseinheit 12 auf dem letzten Stück beim Hineinschieben zentrieren. Hierdurch wird die Montage der Antriebseinheit 12 über die untere Ausnehmung vereinfacht.The upper side of the support structure 1 has guiding means 6 designed as chamfers, which correspond to corresponding guiding means 6 also designed as chamfers on the underside of the frame 7 at the edge of the recess. The slanted surfaces of the chamfers 6 of the frame 7 point downwards, with the slanted surfaces of the chamfers 6 of the drive unit 12 and the frame 7 making contact in the assembled state. When introducing the drive unit 12 in the lower recess, the chamfers 6 act as an aid that the Center drive unit 12 on the last piece when pushing in. This simplifies the assembly of the drive unit 12 via the lower recess.

Über die untere Ausnehmung kann die Antriebseinheit 12 mitsamt der Motoreinheit 9 am Rahmen 7 montiert werden.The drive unit 12 together with the motor unit 9 can be mounted on the frame 7 via the lower recess.

Der Rahmen 7 weist darüber hinaus an der Seite eine weitere Aussparung 13 auf, deren geometrische Maße diejenigen der Motoreinheit 9 (von der Seite aus gesehen) überschreiten. Die Aussparung 13 ist nach unten offen und bildet somit eine durchgehende Öffnung mit der unteren Ausnehmung. Die Fasen 6 sind (bei vertikal ausgerichteter Schlitzwandfräse 10) horizontal und parallel zueinander ausgerichtet und befinden sich an gegenüberliegenden Rändern der unteren Ausnehmung. Die Fasen 6 dienen somit als Führungsmittel, über welche die Antriebseinheit 12 in Bezug auf den Rahmen 7 seitlich horizontal (bei vertikal ausgerichteter Schlitzwandfräse 10) verschoben werden kann. Hierfür muss selbstverständlich die Verbindung über die Verbindungsmittel 8 gelöst sein.The frame 7 also has a further recess 13 on the side, the geometric dimensions of which exceed those of the motor unit 9 (seen from the side). The recess 13 is open at the bottom and thus forms a continuous opening with the lower recess. The chamfers 6 are aligned horizontally and parallel to one another (when the trench wall cutter 10 is vertically aligned) and are located on opposite edges of the lower recess. The chamfers 6 thus serve as guide means, via which the drive unit 12 can be laterally displaced horizontally in relation to the frame 7 (when the trench wall cutter 10 is aligned vertically). Of course, the connection via the connecting means 8 must be released for this.

Die Antriebseinheit 12 kann daher nach Lösen der Verbindung zwischen Motoraufnahme 2 und Motoreinheit 9 ohne Motoreinheit 9 seitlich aus dem Rahmen 7 herausgeschoben bzw. in diesen hineingeschoben werden. Die Führung entlang der Führungsmittel 6 erleichtert dabei den Vorgang des Verschiebens. Dadurch ergibt sich ein vereinfachter und beschleunigter Demontage- und Montageprozess der Antriebseinheit 12, wobei die Motoreinheit 9 im Rahmen 7 verbleibt. Dies ist insbesondere vorteilhaft in Fällen, in denen die Antriebseinheit 12 zwecks eines Umtauschs oder einer Wartung der verschleißanfälligen Bauteile wie Getriebe 3, Fräsradaufnahmen 4 oder Verschleißbleche 5 aus- und wieder eingebaut werden soll.The drive unit 12 can therefore be pushed laterally out of the frame 7 or pushed into it without the motor unit 9 after the connection between the motor mount 2 and the motor unit 9 has been released. The guidance along the guide means 6 facilitates the process of displacement. This results in a simplified and accelerated disassembly and assembly process for the drive unit 12 , with the motor unit 9 remaining in the frame 7 . This is particularly advantageous in cases in which the drive unit 12 is to be removed and reinstalled for the purpose of replacing or servicing the wear-prone components such as gears 3, cutting wheel mounts 4 or wear plates 5.

Die Führungsmittel 6 erfüllen folglich eine Doppelfunktion. Sie dienen einerseits dem Zentrieren der Antriebseinheit 12 bei der Montage von unten nach oben (bei vertikal ausgerichtetem Rahmen 7) über die untere Ausnehmung (bei der die Motoreinheit 9 mit der Motoraufnahme 2 bereits verbunden sein kann) und andererseits der Führung der Antriebseinheit 12 beim seitlichen Ein- bzw. Herausschieben über die seitliche Aussparung 13 (wobei die Motoreinheit 9 in diesem Fall nicht mit der Motoraufnahme 2 verbunden ist).The guide means 6 consequently fulfill a double function. On the one hand, they serve to center the drive unit 12 during assembly from bottom to top (with the frame 7 aligned vertically) via the lower recess (in which the motor unit 9 can already be connected to the motor mount 2) and, on the other hand, to guide the drive unit 12 during lateral Sliding in or out via the lateral recess 13 (in this case the motor unit 9 is not connected to the motor mount 2).

Der Rahmen 7 kann eine derartige Aussparung 13 an beiden Seiten besitzen, sodass das seitliche Ein- und Herausschieben über beide Seiten möglich ist. Ferner kann vorgesehen sein, dass die geometrischen Maße der seitlichen Aussparung 13 diejenigen der Motoraufnahme 2 und der Motoreinheit 9 in verbundenem Zustand überschreitet, sodass die Antriebseinheit 12 zusammen mit der Motoreinheit 9 seitlich ein- und ausgebaut werden kann.The frame 7 can have such a recess 13 on both sides, so that it is possible to slide it in and out from both sides. Provision can also be made for the geometric dimensions of the lateral recess 13 to exceed those of the motor mount 2 and the motor unit 9 in the connected state, so that the drive unit 12 can be installed and removed laterally together with the motor unit 9 .

Die Antriebseinheit 12 kann sich entweder über die ganze bzw. im Wesentlichen über die ganze Breite des Rahmens 7 erstrecken, sodass nur eine einzige Antriebseinheit 12 bei der erfindungsgemäßen Schlitzwandfräse zum Einsatz kommt. Alternativ können mehrere, insbesondere zwei, Antriebseinheiten 12 nebeneinander zum Einsatz kommen, welche je einer Motoreinheit 9 zugeordnet sind. In diesem Fall befindet sich an der Unterseite des Rahmens 7 je eine untere Ausnehmung für eine Antriebseinheit 12. Ferner weist der Rahmen 7 in diesem Fall zweckmäßigerweise auf beiden Seiten eine Aussparung 13 auf, sodass jede der Antriebseinheiten 12 auf der entsprechenden Seite in den Rahmen 7 eingeschoben werden kann.The drive unit 12 can either extend over the entire or essentially over the entire width of the frame 7, so that only a single drive unit 12 is used in the trench cutter according to the invention. Alternatively, several, in particular two, drive units 12 can be used side by side, each of which is assigned to a motor unit 9 . In this case, there is a lower recess for a drive unit 12 on the underside of the frame 7. Furthermore, in this case, the frame 7 expediently has a recess 13 on both sides, so that each of the drive units 12 fits into the frame 7 on the corresponding side can be inserted.

Darüber hinaus weist der Rahmen 7 im unteren Bereich der Vorder- und Rückseite (welche sich in der Figur 2 rechts und links der seitlichen Aussparung 13 befinden) Einbuchtungen 11 auf, innerhalb derer sich in verbundenem Zustand die von außen zugänglichen Teile (insbesondere die Muttern) der Verbindungsmittel 8 befinden. Dadurch können die Schrauben-Mutter-Verbindungen zwischen Antriebseinheit 12 und Rahmen 7 bequem von außen gelöst bzw. fixiert werden, ohne dass zusätzliche Verbindungselemente im Inneren des Rahmens 7 benötigt werden, welche die Montage und Demontage erschweren würden. Die Muttern 8 befindet sich des Weiteren vollständig innerhalb der Einbuchtungen 11, d.h. innerhalb der Außenkontur des Rahmens 7, welche man erhalten würde, wenn man die Außenkontur über die Einbuchtungen 11 hinweg verlängern würde, d.h. die sich ohne Einbuchtungen 11 ergeben würde. Dadurch ergibt sich eine Platzersparnis und eine Kollision der Verbindungsmittel 8 mit den Wänden des durch die Schlitzwandfräse 10 zu erstellenden Bodenschlitzes wird vermieden.In addition, the frame 7 has in the lower area of the front and back (which can be seen in the figure 2 located to the right and left of the lateral recess 13) indentations 11, within which the externally accessible parts (in particular the nuts) of the connecting means 8 are located in the connected state. As a result, the screw-nut connections between the drive unit 12 and the frame 7 can be easily loosened or fixed from the outside without the need for additional connecting elements inside the frame 7, which would make assembly and disassembly more difficult. Furthermore, the nut 8 is located completely within the indentations 11, ie within the outer contour of the frame 7, which would be obtained if the outer contour were to be extended beyond the indentations 11, ie the outer contour without indentations 11 would result. This saves space and prevents the connecting means 8 from colliding with the walls of the trench in the ground to be created by the trench wall cutter 10 .

In der Figur 3 ist die Schlitzwandfräse 10 in einem Zustand gezeigt, in dem die Antriebseinheit 12 vom Rahmen 7 demontiert ist, wobei die Motoreinheit 9 mit der Motoraufnahme 2 verbunden ist. Eine solche Demontage erfolgt in Bezug auf den (vertikal ausgerichteten) Rahmen 7 von oben nach unten über die untere Ausnehmung des Rahmens 7. In dieser Darstellung sind die Fasen 6 des Rahmens 7 und der Trägerstruktur 1 einzeln zu erkennen.In the figure 3 1, the trench cutter 10 is shown in a state in which the drive unit 12 is dismantled from the frame 7, with the motor unit 9 being connected to the motor mount 2. Such a dismantling takes place in relation to the (vertically oriented) frame 7 from top to bottom via the lower recess of the frame 7. In this illustration, the chamfers 6 of the frame 7 and the support structure 1 can be seen individually.

Bezugszeichenliste:Reference list:

11
Trägerstruktursupport structure
22
Motoraufnahmeengine mount
33
Getriebetransmission
44
Fräsradaufnahmemilling wheel mount
55
Verschleißblechwear plate
66
Führungsmittelmeans of guidance
77
RahmenFrame
88th
Verbindungsmittellanyard
99
Motoreinheitmotor unit
1010
Schlitzwandfräsediaphragm wall cutter
1111
Einbuchtungindentation
1212
Antriebseinheitdrive unit
1313
Aussparungrecess
2020
Trägergerätcarrier device

Claims (9)

  1. Trench cutter (10) for producing vertical trenches in the ground, which is connectable to a carrier apparatus (20), comprising a frame (7), a motor unit (9) and a drive unit (12) releasably connectable with the frame (7), wherein the drive unit (12) comprises a carrier structure (1), at least one gear mechanism (3) arranged on the carrier structure (1) as well as at least one cutting tool for crushing ground material which is connected to the gear mechanism (3) and drivable by the motor unit (9),
    characterized in that
    the motor unit (9) is releasably connectable to the drive unit (12), and that the frame (7) and the drive unit (12) respectively comprise guide means (6), which are configured in such a way that the drive unit (12), in particular in case of released connection with the motor unit (9), can be pushed laterally into and out of the frame (7).
  2. Trench cutter (10) according to claim 1, characterized in that the drive unit (12) comprises a motor receptacle (2), to which the motor unit (9) is releasably connectable, and which is preferably arranged on the top side of the carrier structure (1).
  3. Trench cutter (10) according to claim 2, characterized in that the frame (7) comprises a cutout (13) at at least one side, preferably at two opposite sides, through which the motor receptacle (2) can be pushed when the drive unit (12) is displaced in a manner guidable by means of the guide means (6).
  4. Trench cutter (10) according to one of the preceding claims, characterized in that the guide means (6) of the frame (7) and of the drive unit (12) are configured as beveled edges, the chamfered surfaces of which contact one another in the connected state.
  5. Trench cutter (10) according to one of the preceding claims, characterized in that the frame (7) comprises a recess on its lower side, into which a part, preferably an upper part of the drive unit (12) can be introduced, wherein a releasable connection of drive unit (12) and frame (7), viewed relative to the frame (7), can either be produced via lateral introduction of the drive unit (12) into the lateral cutout (13) or introduction of the drive unit (12) into the lower recess from top to bottom.
  6. Trench cutter (10) according to claim 5, characterized in that the guide means (6) are arranged and configured in such a way that a centering and fine-positioning of the drive unit (12) relative to the frame (7) takes place when the drive unit (12) is introduced into the lower recess of the frame (7).
  7. Trench cutter (10) according to claim 5 or 6, characterized in that the drive unit (12) can be introduced into the lower recess in a state in which the motor unit (9) is connected with the motor receptacle (2).
  8. Trench cutter (10) according to one of the preceding claims, characterized in that the drive unit (12) is releasably connectable with the lower end of the frame (7).
  9. Trench cutter (10) according to one of the preceding claims, characterized in that the motor unit (9) is releasably connectable with the frame (7).
EP20150905.6A 2019-01-21 2020-01-09 Trench wall cutter Active EP3683362B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21162496.0A EP3851586B1 (en) 2019-01-21 2020-01-09 Trench wall cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202019100319.7U DE202019100319U1 (en) 2019-01-21 2019-01-21 Trench cutter

Related Child Applications (2)

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EP21162496.0A Division EP3851586B1 (en) 2019-01-21 2020-01-09 Trench wall cutter
EP21162496.0A Division-Into EP3851586B1 (en) 2019-01-21 2020-01-09 Trench wall cutter

Publications (3)

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EP3683362A2 EP3683362A2 (en) 2020-07-22
EP3683362A3 EP3683362A3 (en) 2020-08-05
EP3683362B1 true EP3683362B1 (en) 2023-05-24

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EP (2) EP3683362B1 (en)
CN (1) CN111456133B (en)
DE (1) DE202019100319U1 (en)

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* Cited by examiner, † Cited by third party
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CN112459150B (en) * 2020-11-12 2022-04-15 广东天汇建设工程有限公司 Foundation and foundation construction equipment

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Also Published As

Publication number Publication date
EP3851586B1 (en) 2023-04-05
EP3851586A1 (en) 2021-07-21
CN111456133B (en) 2023-01-10
EP3683362A2 (en) 2020-07-22
US20200232182A1 (en) 2020-07-23
CN111456133A (en) 2020-07-28
DE202019100319U1 (en) 2020-04-22
EP3683362A3 (en) 2020-08-05

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