EP1580327B1 - Slotted wall milling cutter - Google Patents

Slotted wall milling cutter Download PDF

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Publication number
EP1580327B1
EP1580327B1 EP20040007475 EP04007475A EP1580327B1 EP 1580327 B1 EP1580327 B1 EP 1580327B1 EP 20040007475 EP20040007475 EP 20040007475 EP 04007475 A EP04007475 A EP 04007475A EP 1580327 B1 EP1580327 B1 EP 1580327B1
Authority
EP
European Patent Office
Prior art keywords
characterized
rotation
arranged
cutting wheels
trench cutter
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
EP20040007475
Other languages
German (de)
French (fr)
Other versions
EP1580327A1 (en
Inventor
Maximilian Arzberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAUER Maschinen GmbH
Original Assignee
BAUER Maschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BAUER Maschinen GmbH filed Critical BAUER Maschinen GmbH
Priority to EP20040007475 priority Critical patent/EP1580327B1/en
Publication of EP1580327A1 publication Critical patent/EP1580327A1/en
Application granted granted Critical
Publication of EP1580327B1 publication Critical patent/EP1580327B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22Component parts
    • E02F3/24Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/246Digging wheels; Digging elements of wheels; Drives for wheels drives
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/13Foundation slots or slits; Implements for making these slots or slits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20Dredgers; 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
    • E02F3/205Dredgers; 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

Description

  • The invention relates to a trench cutter with at least two pairs of cutting wheels, which are rotatable about a first axis of rotation and a second axis of rotation, wherein the two axes of rotation are offset from each other.
  • From the DE 34 24 999 C2 Two different types of trench wall cutters emerge. Thus, there are trench wall milling with a cutting wheel or a pair of cutting wheels with two cutting wheels, which have a common axis of rotation. A single pair of cutting wheels is rotated by a common drive, as in Figs. 2 and 3 of DE 34 24 999 C2 is shown. A corresponding gear arrangement for driving a single Fräsradpaares is also from the DE 196 52 022 A1 known.
  • A generic trench cutter with two pairs of cutting wheels, which are offset from one another transversely to the axes of rotation, is in Fig. 1 of DE 34 24 999 C2 shown. The two pairs of cutting wheels are each set in rotation by a separate drive motor via a corresponding gear arrangement.
  • Another generic trench cutter is from the EP-A-0 811 724 known. The milling frame suspended on a device has an anchoring part with positioning and anchoring skids and a lifting tool which can be extended by hydraulic cylinders. At the lower end of the support tool are mounted on mutually offset, driven by a respective hydraulic motor axes Fräsradpaare. The cutting wheels are lying each in one plane and rotate in the opposite direction. By means of a suction generated by a hydraulic pump, the decomposition material is sucked in halfway and in the middle between the staggered cutting wheels and transported via hoses upwards.
  • In the DE 16 34 487 A For example, a hammer drill for making slot holes using a jet aspirator will be described. The device has the same length, counter-driven rod assemblies, which are combined by a provided with wall guide elements bridge connection to a unit. Each drill string is assigned a drill bit and each in the strand inside the cuttings are promoted high. A drive motor arranged on the bridge drives a transmission which distributes drive torque to a plurality of drill bits.
  • The invention has for its object to provide a trench cutter, which ensures a reliable milling operation in a simple and compact structure.
  • The object is achieved by a trench cutter with the features of claim 1. Preferred embodiments are given in the dependent claims.
  • The trench wall cutter according to the invention is characterized in that a single drive motor is provided which via a gear arrangement which drives at least two cutting wheels or pairs of cutting wheels together.
  • By the invention, not only the cost of the drive and the transmission of the trench wall cutter is practically halved, but a common drive and a common gear arrangement also allow forced synchronization of the cutting wheels. This allows the transverse to the axis of rotation juxtaposed milling wheels arranged closer together. This results in a particularly compact trench wall cutter with good material removal, in which the risk of getting stuck within the slot is significantly reduced.
  • An additional feature of the invention is that the gear arrangement has a sun gear, which is arranged substantially centrally between the two mutually offset axes of rotation. This results in a symmetrical torque introduction, which allows a particularly uniform torque distribution.
  • A particular compact gear arrangement according to the invention is achieved in that the two pairs of cutting wheels each have a common drive train, which are driven by the sun gear.
  • A particularly good torque distribution in a compact design is achieved according to the invention in that the drive trains are arranged at an acute angle to the axis of the sun gear. The drive trains form with the sun gear an arrangement in the form of an inverted Y, wherein the drive trains are arranged above the axes of rotation of the cutting wheels and directed upward. The acute angle is preferably between 15 ° and 60 °, in particular 45 °.
  • For a good load distribution, it is particularly preferred that the drive trains are arranged approximately at a right angle to each other.
  • According to a further embodiment of the invention, it is provided that the drive trains each have at least one transmission gear. Under gear transmission is understood, of course, a reduction. It can be done directly on the cutting wheels so a desired torque conversion. In addition, the drive trains in the arrangement of Fräsradpaaren also each have a distribution gear, which distributes the torque of the drive train in equal parts on the cutting wheels along the same axis of rotation.
  • Furthermore, it is advantageous according to the invention that radially projecting cutting teeth are provided on the cutting wheels or cutting wheel pairs, which are arranged intermeshing in operation. Due to the achievable with the invention forced synchronization of juxtaposed cutting wheels they can be arranged so close to each other that the cutting teeth mesh with each other safely. In this way, a uniformly high removal rate can be achieved over the entire milling cross section.
  • A particularly good and maintenance-friendly embodiment of the invention is given by the fact that the drive motor and the gear arrangement are arranged in a milling housing.
  • It is particularly preferred that the trench wall cutter is attached to a telescopic linkage and that the thickness of the milling housing in the direction of the axes of rotation is less than or equal to the maximum diameter of the telescopic linkage. While in conventional milling usually a very large cutting frame is given, which is necessary for guiding the trench wall cutter in the slot, the compact trench cutter according to the invention can be performed by a telescopic linkage. Due to the compact design of the milling housing according to the invention, which does not protrude beyond the maximum diameter of the telescopic linkage in the direction of the axes of rotation, the risk of jamming of the trench wall cutter in the slot is drastically reduced.
  • According to another preferred embodiment, it is inventively provided that between the drive motor and the sun gear, a main drive shaft is arranged. The main drive shaft can each have at its two ends in each case curved toothings, which are arranged in meshing manner in corresponding toothed sleeves of the drive motor or of the sun gear. Such an arrangement allows a compensation of shocks and torsions between the drive motor and the sun gear, so that a particularly durable transmission arrangement is created.
  • The invention will be described in more detail below with reference to a Ausführüngsbeispieles, which is shown in a highly schematic manner in the single drawing figure.
  • A trench wall cutter 10 according to the invention according to the figure shows two cutting wheels 12, 14, on whose outer circumference a plurality of cutting teeth 20 are arranged. The cutting wheels 12, 13 each belong to a cutting wheel pair, wherein the rear cutting wheel is not shown. The left-side cutting wheel 12 of a pair of cutting wheels rotates about a first axis of rotation 16, while the right-side cutting wheel 14 of the other pair of cutting wheels rotates about a second axis of rotation 18. The two axes of rotation 16, 18 are offset in a transverse direction to each other by a predetermined distance. The left-side cutting wheel 12 is driven in the clockwise direction, while the right-side cutting wheel 14 is driven in the counterclockwise direction.
  • From a above the axes of rotation 16, 18 arranged, not shown common drive motor, the drive torque via a gear assembly 30 to the cutting wheels 12, 14 and their Fräsradpaare transmitted. To the drive motor, the torque is transmitted via a partially shown main drive shaft 36 to a sun gear 32. The main drive shaft 36 has for this purpose at its lower end a curved toothing 37, which is arranged in a corresponding toothed sleeve at the upper end of the sun gear 32. The sun gear 32 has an axis 33 which is approximately perpendicular to the axes of rotation 16, 18 of the cutting wheels 12, 14 directed and arranged centrally thereto.
  • From a pinion toothing of the sun gear 32, the torque is transmitted in a combing connection via the plate gears 42, 52 on the drive lines 40, 50 for the cutting wheels 12, 14 and their Fräsradpaare. The drive trains 40, 50 each have gear ratios, not shown, which reduce the speed of the sun gear 32 and thus increase the torque for the cutting wheels 12, 14 to a desired value. By tapping the torque on the sun gear 32 through the ring gears 42, 52 at opposite points can be achieved with otherwise identical configuration of the drive trains 40, 50 a uniform torque distribution in the opposite direction in a simple manner.
  • The axes of the drive trains 40, 50 are arranged approximately at right angles to each other and form with the axis 33 of the sun gear 32 an upside-down Y-arrangement.

Claims (8)

  1. Trench cutter comprising at least two pairs of cutting wheels (12, 14),
    which rotate about a first axis of rotation (16) or respectively about a second axis of rotation (18),
    both axes of rotation being offset from each other,
    characterized in that
    a single drive motor is provided, which jointly drives the at least two pairs of cutting wheels (12, 14) by means of a gear arrangement (30),
    in that the gear arrangement (30) has a sun wheel (32) that is substantially arranged in a central position between the two mutually offset axes of rotation (16, 18), and
    in that the two pairs of cutting wheels (12, 14) each have a drive train (40, 50) which is driven by the sun wheel (32).
  2. Trench cutter according to claim 1,
    characterized in that
    the drive trains (40, 50) are arranged at an acute angle to the axis (33) of the sun wheel (32).
  3. Trench cutter according to claim 1 or 2,
    characterized in that
    the drive trains (40, 50) are arranged approximately at a right angle with respect to each other.
  4. Trench cutter according to any one of claims 1 to 3,
    characterized in that
    the drive trains (40, 50) each have at least one transmission gear.
  5. Trench cutter according to any one of claims 1 to 4,
    characterized in that
    radially protruding cutting teeth (20) are provided on the cutting wheels (12, 14) or pairs of cutting wheels, which are arranged in a meshing manner during operation.
  6. Trench cutter according to any one of claims 1 to 5,
    characterized in that
    the drive motor and the gear arrangement (30) are arranged in a cutter housing.
  7. Trench cutter according to claim 6,
    characterized in that
    the trench cutter (10) is mounted on a telescopic rod and
    in that in the direction of the axes of rotation (16, 18) the thickness of the cutter housing is smaller than or equal to the maximum diameter of the telescopic rod.
  8. Trench cutter according to any one of claims 1 to 7,
    characterized in that
    a main drive shaft (36) is arranged between the drive motor and the sun wheel (32).
EP20040007475 2004-03-26 2004-03-26 Slotted wall milling cutter Active EP1580327B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20040007475 EP1580327B1 (en) 2004-03-26 2004-03-26 Slotted wall milling cutter

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE200450007221 DE502004007221D1 (en) 2004-03-26 2004-03-26 Trench cutter
EP20040007475 EP1580327B1 (en) 2004-03-26 2004-03-26 Slotted wall milling cutter
KR20050022209A KR100661593B1 (en) 2004-03-26 2005-03-17 Trench Cutter
RU2005107742/03A RU2295003C2 (en) 2004-03-26 2005-03-21 Slot-cutting milling device
US11/098,654 US7497038B2 (en) 2004-03-26 2005-03-24 Trench cutter
CN 200510062750 CN100357529C (en) 2004-03-26 2005-03-25 Slotted wall milling cutter
JP2005088636A JP4046737B2 (en) 2004-03-26 2005-03-25 Trench cutter

Publications (2)

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

Family

ID=34854645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040007475 Active EP1580327B1 (en) 2004-03-26 2004-03-26 Slotted wall milling cutter

Country Status (7)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1640509B2 (en) * 2004-08-23 2014-03-05 BAUER Maschinen GmbH Method of making a sloted wall in ground and device therefor
FR2899608B1 (en) * 2006-04-06 2010-04-16 Cie Du Sol Drilling tools
KR100767350B1 (en) * 2006-07-14 2007-10-18 김영운 A device for cutting of constructure
US7845098B1 (en) * 2009-05-22 2010-12-07 Loram Maintenance Of Way, Inc. Rotary undercutter for rail line maintenance
EP2597205B1 (en) * 2011-11-23 2014-04-30 BAUER Maschinen GmbH Milling wheel assembly
CN102888868B (en) * 2012-10-26 2015-04-22 牛发启 Pneumatic deep groove digging device
CN107034938A (en) * 2017-04-22 2017-08-11 姜西忠 Runner groove milling equipment

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US2923537A (en) * 1958-04-07 1960-02-02 Wilcox Mfg Company Auger mining section assembly
DE1142815B (en) 1961-02-03 1963-01-31 Korfmann Gmbh Maschf A method and drilling machine for expanding Grossbohrloechern for Rolloecher and reactive saddle True in mining
US3285351A (en) * 1962-08-06 1966-11-15 Michael R Caro Drilling apparatus
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EP1640509B2 (en) * 2004-08-23 2014-03-05 BAUER Maschinen GmbH Method of making a sloted wall in ground and device therefor

Also Published As

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

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