EP3851586B1 - Fraise pour parois moulées - Google Patents

Fraise pour parois moulées Download PDF

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Publication number
EP3851586B1
EP3851586B1 EP21162496.0A EP21162496A EP3851586B1 EP 3851586 B1 EP3851586 B1 EP 3851586B1 EP 21162496 A EP21162496 A EP 21162496A EP 3851586 B1 EP3851586 B1 EP 3851586B1
Authority
EP
European Patent Office
Prior art keywords
frame
drive unit
motor
connecting means
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
EP21162496.0A
Other languages
German (de)
English (en)
Other versions
EP3851586A1 (fr
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
Publication of EP3851586A1 publication Critical patent/EP3851586A1/fr
Application granted granted Critical
Publication of EP3851586B1 publication Critical patent/EP3851586B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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 wall cutter according to the preamble of claim 1, as it is basically known from the prior art from the publication EP 1 666 671 A1 is known.
  • Trench wall cutters are known in many variants from the prior art.
  • 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 present 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, 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 that 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 detachably connected to one another, the motor unit being detachably connected to the drive unit, the connecting means being accessible from the outside , so that the connection between the drive unit and the frame can be made 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 being designed in such a way that the parts of the connecting means that are accessible from the outside are arranged inside the indentations and inside the outer contour of the frame that is extended beyond the indentations are.
  • 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.
  • other working machines such as hydraulic excavators or special civil engineering equipment can also be used as the carrier device 20 for the trench wall cutter 10 according to the invention.
  • 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 height 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 replacement 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, with 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 via the gear 3 are drivable.
  • the energy supply of the motor unit(s) 9 is ensured by appropriate 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 aids which center the drive unit 12 on the last piece when pushed 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 are those of the motor unit 9 (seen from the side). exceed.
  • 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 (with a trench wall cutter 10 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 replacement or maintenance of 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 and 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 nuts 8 are 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 which would result without indentations 11. 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.

Landscapes

  • 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)

Claims (1)

  1. Fraise pour parois moulées (10) pour produire des tranchées verticales de sol, laquelle peut être raccordée à un appareil de support (20), comprenant un châssis (7), un groupe moteur (9) et un groupe d'entraînement (12), dans laquelle le groupe d'entraînement (12) comprend une structure de support (1), au moins un engrenage (3) disposé sur la structure de support (1) et au moins un outil de fraisage raccordé à l'engrenage (3) et pouvant être entraîné par le groupe moteur (9) pour fragmenter du matériau de sol, et dans laquelle le châssis (7) et le groupe d'entraînement (12) présentent des moyens de raccordement (8) au moyen desquels le châssis (7) et le groupe d'entraînement (12) peuvent être raccordés l'un à l'autre de manière amovible, dans laquelle le groupe moteur (9) peut être raccordé de manière amovible au groupe d'entraînement (12), en particulier à un logement de moteur (2) disposé sur le groupe d'entraînement (12), dans laquelle les moyens de raccordement (8) sont accessibles sur le contour extérieur du châssis (7) si bien qu'une fabrication ou un détachement du raccordement entre le groupe d'entraînement (12) et le châssis (7) peuvent être effectués depuis l'extérieur,
    caractérisée en ce que
    le châssis (7) présente des échancrures concaves (11), lesquelles permettent un accès aux moyens de raccordement (8) sur le contour extérieur du châssis (7), dans laquelle le châssis (7) est réalisé de telle sorte que les parties, accessibles depuis l'extérieur, des moyens de raccordement (8) sont disposées à l'intérieur des échancrures concaves (11) et à l'intérieur du contour extérieur du châssis (7) prolongé au-delà des échancrures concaves (11).
EP21162496.0A 2019-01-21 2020-01-09 Fraise pour parois moulées Active EP3851586B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019100319.7U DE202019100319U1 (de) 2019-01-21 2019-01-21 Schlitzwandfräse
EP20150905.6A EP3683362B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP20150905.6A Division EP3683362B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées
EP20150905.6A Division-Into EP3683362B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées

Publications (2)

Publication Number Publication Date
EP3851586A1 EP3851586A1 (fr) 2021-07-21
EP3851586B1 true EP3851586B1 (fr) 2023-04-05

Family

ID=69156302

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21162496.0A Active EP3851586B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées
EP20150905.6A Active EP3683362B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20150905.6A Active EP3683362B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées

Country Status (4)

Country Link
US (1) US12049743B2 (fr)
EP (2) EP3851586B1 (fr)
CN (1) CN111456133B (fr)
DE (1) DE202019100319U1 (fr)

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CN116025020B (zh) * 2023-02-28 2025-05-13 中国葛洲坝集团市政工程有限公司 一种提高地下连续墙平整度的装置及方法

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Also Published As

Publication number Publication date
DE202019100319U1 (de) 2020-04-22
EP3683362A3 (fr) 2020-08-05
EP3851586A1 (fr) 2021-07-21
EP3683362A2 (fr) 2020-07-22
US20200232182A1 (en) 2020-07-23
US12049743B2 (en) 2024-07-30
EP3683362B1 (fr) 2023-05-24
CN111456133B (zh) 2023-01-10
CN111456133A (zh) 2020-07-28

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