EP2636799B1 - Schlitzwandfräse und Verfahren zum Erstellen eines Schlitzes im Boden - Google Patents

Schlitzwandfräse und Verfahren zum Erstellen eines Schlitzes im Boden Download PDF

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Publication number
EP2636799B1
EP2636799B1 EP12001469.1A EP12001469A EP2636799B1 EP 2636799 B1 EP2636799 B1 EP 2636799B1 EP 12001469 A EP12001469 A EP 12001469A EP 2636799 B1 EP2636799 B1 EP 2636799B1
Authority
EP
European Patent Office
Prior art keywords
rotation
axis
cutting wheel
trench wall
wall 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.)
Not-in-force
Application number
EP12001469.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2636799A1 (de
Inventor
Christoph Schröppel
Stefan Schindler
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 Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau 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 Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Priority to EP12001469.1A priority Critical patent/EP2636799B1/de
Priority to BR102013001681-0A priority patent/BR102013001681A2/pt
Priority to JP2013032715A priority patent/JP5705896B2/ja
Priority to US13/777,859 priority patent/US9074341B2/en
Priority to KR1020130022603A priority patent/KR101446255B1/ko
Priority to CN201310069026.7A priority patent/CN103306324B/zh
Publication of EP2636799A1 publication Critical patent/EP2636799A1/de
Priority to HK13111769.1A priority patent/HK1184512A1/xx
Application granted granted Critical
Publication of EP2636799B1 publication Critical patent/EP2636799B1/de
Not-in-force 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
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—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
    • E02F3/241—Digging wheels; Digging elements of wheels; Drives for wheels digging wheels

Definitions

  • the invention relates to a trench cutter according to the preamble of claim 1 and to a method for creating a slot in the floor according to the preamble of claim 13.
  • Such a trench wall cutter comprises a trimming frame and at least one cutting wheel mounted rotatably about a rotation axis on the trimming frame, which has on its outer circumference a plurality of soil working tools for removing soil material which are arranged along an annular path around the axis of rotation.
  • a trench cutter of the type mentioned is for example in the DE 10 2007 035 591 B3 described.
  • the invention has for its object to provide a trench cutter and a method for creating a slot in the ground, which allow a particularly economic Schlitzwander ein.
  • the trench wall cutter according to the invention is characterized in that the annular path is asymmetrical to the axis of rotation of the cutting wheel, wherein the annular path has at least a first peripheral portion at a greater distance from the axis of rotation and at least a second peripheral portion at a smaller distance from the axis of rotation.
  • the method is inventively characterized in that the annular path is asymmetrical to the axis of rotation of the cutting wheel, wherein the annular path has at least a first peripheral portion at a greater distance from the axis of rotation and at least a second peripheral portion at a smaller distance from the axis of rotation and wherein the trench wall cutter during operation is put into a defined vibration.
  • a first basic idea of the invention can be seen to produce a defined non-circular run of the cutting wheel by the asymmetrical arrangement of the tillage tools.
  • the non-circular run is achieved in that the ring track, on which the tillage tools are arranged in the circumferential direction, no circular path about the axis of rotation of the cutting wheel as a circle center.
  • the tillage tools are thus arranged deviating from a point-symmetrical to the axis of rotation of the cutting wheel circular path.
  • the tilling tools are further away from the axis of rotation and at least in a second portion closer to the axis of rotation.
  • the tillage tools may be, in particular, cutting teeth, chisels, rollers or rollers.
  • the tillage tools are used for loosening or removing soil material for creating a slot in the ground and are arranged for this purpose on an outer periphery of the cutting wheel.
  • the distance of the tillage tools from the axis of rotation of the cutting wheel changes defined, in particular gradually, in the circumferential direction along the annular path.
  • the tilling tools are in particular arranged such that the distance from the axis of rotation along the annular path increases and decreases periodically along a plurality of tillage tools.
  • the distance of the tilling tools from the axis of rotation in the circumferential direction of the cutting wheel increases successively along a first section via a plurality of tillage tools and then successively along a second section via a plurality of tillage tools again.
  • the tillage tools arranged according to the invention cause a rotation of the cutting wheel about its axis of rotation a periodically changing distance of the axis of rotation to the resultingewedfräsenden soil.
  • the ring track, on which the soil working tools are arranged around the cutting wheel can be offset and / or distorted in particular in relation to a circular path which is point-symmetrical with respect to the axis of rotation of the cutting wheel.
  • the tillage tools are arranged on a rotationally asymmetric to Fräsradfilachse ring track, that is, a rotation of the cutting wheel at an arbitrary angle does not form the ring track on itself, but forms an offset and / or twisted annular path with respect to the original ring path.
  • the ring track, along which the tillage tools are arranged, may also be referred to as a cutting path.
  • a rotation of the cutting wheel By a rotation of the cutting wheel, the position and / or orientation of the cutting path changes with respect to the axis of rotation of the cutting wheel.
  • a defined vibration of the trench wall cutter can be generated on the basis of the asymmetrical ring path to the axis of rotation of the cutting wheel.
  • Another advantage is therefore to put the trench wall cutter in a defined vibration. Due to the weight of the trench wall cutter and / or a generated pressure force, a lower peripheral portion of the cutting wheel is in operation at the bottom of the slot. By changing in the circumferential direction of the cutting wheel distance of the tillage tools from the axis of rotation, the axis of rotation of the cutting wheel at a contacting of the respective underlying tillage tools with the bottom of the slot is periodically moved up and down. This causes a vibration of the cutting frame or the trench wall cutter.
  • the dynamic force on the tillage tools is further increased and a beating soil removal possible.
  • the soil can thus be solved in addition to grinding by knocking, so that a frictional wear on the tillage tools can be reduced and an even more effective soil removal can be realized.
  • the ring track, along which the tillage tools are arranged has a deviating from a circular path, in particular elliptical shape.
  • the axis of rotation of the cutting wheel can be located here in the geometric center of the cutting wheel or in the ring center of the annular path.
  • axis of rotation of the cutting wheel is offset with respect to a geometric center point of the ring track ring.
  • the axis of rotation is arranged eccentrically in this case with respect to the tillage tools arranged along the annular path.
  • the ring track is a circular path whose geometric center is arranged eccentrically or offset from the axis of rotation. Such, arranged eccentrically to the circular path of the tillage tools rotary axis can be particularly easy to achieve manufacturing technology by a center eccentric hub is provided.
  • the eccentricity of, in particular elliptical, annular path or the offset of the axis of rotation with respect to the ring or circle center is preferably between a few millimeters or centimeters and about one or two decimeters.
  • the difference between a maximum distance and a minimum distance of the tillage tools from the axis of rotation is about a few millimeters or centimeters and one or two decimeters.
  • the position of the ring track or the axis of rotation of the cutting wheel is adjustable. For example, with harder ground formations, a greater eccentricity of the cutting wheel can be set than with softer soils.
  • a Fräsradnabe which is arranged concentrically to the axis of rotation and rotatably driven about this, that the tillage tools are releasably secured in a ring gear and that the ring gear on the Fräsradnabe releasably and / or adjustably attached.
  • the annular ring may, in particular, have a plurality of receptacles for the tilling tools, the receptacles for the tilling tools being arranged along the annular path.
  • the annular ring can be fixedly arranged on the milling wheel hub, in particular welded.
  • annular ring which is adjustably mounted on the cutting wheel hub is understood in particular to mean that the eccentricity of the annular ring can be varied with respect to the cutting wheel hub. This can be ensured, for example, by the provision of oblong holes on the annular ring and / or on the cutting wheel hub for fastening elements, such as screws or bolts.
  • the annular ring may have a circular ring or a shape deviating from the circular shape, for example an elliptical shape.
  • an adjusting device such as adjustable connecting plates, can be arranged between a drive shaft and the cutting wheel, so that the cutting wheel is radially adjustable as an assembly relative to the drive shaft and its axis of rotation.
  • a plurality of cutting wheels arranged in pairs are preferably mounted on the milling frame, which can be driven in synchronism with one another.
  • the individual cutting wheels are driven at the same rotational speeds and preferably in addition identical angles of rotation, so that the cutting wheels cause the same up and down movements of the trench wall cutter, which enhance the vibration of the trench wall cutter.
  • the cutting wheels on each other synchronized milling gear are preferably mounted on the milling frame, which can be driven in synchronism with one another.
  • a plurality of cutting wheels are mounted on the milling frame, which are controlled asynchronously driven to each other.
  • the individual cutting wheels are driven at different rotational speeds.
  • differently shaped cutting wheels that is cutting wheels with different ring paths, are used. It is particularly preferred in this context that the individual cutting wheels are driven at the same speeds, but the angles of rotation, based on the orientation of the annular path to the axis of rotation, are offset from one another.
  • a further oscillation superimposition in a trench wall cutter with two pairs of cutting wheels is achieved in that the first and second pair of cutting wheels are of the same design but are arranged and driven at a 45 ° angle offset from one another. This results in a superimposition of four mutually phase-shifted by 45 ° vibrations.
  • the cutting wheels can be arranged coaxially with each other and / or offset parallel to each other. Basically, both a rectified and a counter-directed drive is possible.
  • a feed device for supplying a hardenable medium is arranged on the milling frame.
  • the feed device can comprise a feed opening, via which the curable medium, for example concrete, can be introduced into the created slot.
  • the introduced into the slot medium hardens after salvage the trench wall cutter to a slot wall element.
  • the at least one cutting wheel of the trench wall cutter has at least one folding tooth as a soil cultivation tool.
  • a folding tooth represents a pivotally mounted soil working tool, which pivots when passing the Fräsrahmens, in particular a Frässchildes, on which the cutting wheel is mounted, and swings below the Fräsrahmens to remove soil below the Fräsrahmens.
  • the folding teeth are preferably offset in the circumferential direction to each other so as not to influence each other.
  • the invention relates to a milling device with a carrier device, on which a trench wall cutter is arranged substantially vertically adjustable.
  • a trench wall cutter as described above, is arranged on such a milling device.
  • the carrier device can in particular be a carrier vehicle with an undercarriage and a superstructure mounted rotatably thereon.
  • a mast is articulated to the superstructure, on which the trench wall cutter is suspended.
  • the trench wall cutter can be suspended from a rope.
  • control devices for example control flaps and / or control wheels, may be provided.
  • a trench cutter 10 according to the invention is shown.
  • the trench wall cutter 10 comprises a trimming frame 12, on which several, for example two, four or eight cutting wheels 20 are rotatably mounted.
  • the milling frame 12 preferably comprises one or more milling blades 14, on which the cutting wheels 20 are mounted.
  • At least one cutting wheel 20 is preferably arranged in a lower region of the milling frame 12 for removing soil material in order to create a particular vertical slot in the ground.
  • the cutting wheels 20 are each rotatably mounted about an axis of rotation 22 and have on their outer periphery 24 a plurality of tillage tools 30 for removing soil material.
  • the soil working tools 30, for example, cutting teeth, chisels or rollers, are distributed around the cutting wheel 20 in the circumferential direction.
  • the soil working tools 30 may be arranged in the axial direction of the cutting wheel 20 along different tracks or on different planes.
  • Each cutting wheel may have a pivotally mounted soil working tool, in particular a folding tooth 31.
  • the trench wall cutter 10 For feeding a curable medium into the created slot, the trench wall cutter 10 comprises a feed device 16 with a feed opening.
  • the feed device 16 may be arranged in a lower region of the milling frame 12.
  • FIG Fig. 2 A first embodiment of a cutting wheel 20 according to the invention is shown in FIG Fig. 2 shown.
  • the cutting wheel 20 is a circular cutting wheel, that is, the soil working tools 30 are arranged on a circular path about a center 46 of the cutting wheel 20, which may also be referred to as a ring or circle center.
  • the tillage tools 30 thus extend in the circumferential direction of the cutting wheel 20 on a ring track 32 which is formed as a circular path.
  • the axis of rotation 22 of the cutting wheel 20 is arranged eccentrically to the geometric center 46 of the cutting wheel 20 and the annular path 32, rotation axis 22 and geometric center 46 are therefore not consistent. By this offset, a defined non-circular run is generated upon rotation of the cutting wheel 20.
  • the tilling tools 30 are located along a first peripheral portion 34 of the cutting wheel 20 closer to the axis of rotation 22 than along a second peripheral portion 36 which is offset in the circumferential direction to the first peripheral portion 34.
  • the cutting path of the cutting wheel 20 oscillates periodically.
  • the passing tillage tools 30 oscillate periodically in the radial direction.
  • the cutting wheel 20 includes a Fräsradnabe 40 and a thereto, in particular releasably and / or adjustable, attached ring gear 44.
  • the ring gear 44 may be secured by means of screw or bolt connections 42 on the Fräsradnabe 40.
  • the fastening means By suitable choice of the fastening means, the position of the annular ring 44 with respect to the Fräsradnabe 40 can be adjusted. As a result, the eccentricity of the annular ring 44 can be set variably.
  • elongated holes can be provided on the Fräsradnabe 40 or the ring gear 44, which allow different positioning of the ring gear 44 relative to the Fräsradnabe.
  • the center 46 represents in particular a geometric center of the ring gear 44.
  • the ring gear 44 may alternatively be firmly connected to the Fräsradnabe 40.
  • FIG. 3 A further embodiment of a cutting wheel according to the invention is in Fig. 3 shown.
  • the soil working tools 30 are arranged on an elliptical path around the center 46.
  • the ring track 32, on which the soil tillage tools 30 are arranged in the circumferential direction of the cutting wheel 20, is thus designed as an elliptical path.
  • first peripheral sections 34 at a greater distance from the rotational axis 22 and two second peripheral sections 36 at a smaller distance from the rotational axis 22 along a circumference of the cutting wheel 20.
  • a further embodiment of a cutting wheel 20 according to the invention shows Fig. 4 ,
  • This in Fig. 4 illustrated cutting wheel 20 combines features of the cutting wheels 20 of Figures 2 and 3.
  • the cutting wheel 20 has an elliptical ring track 32 of the soil working tools 30 on.
  • the axis of rotation 22 of the cutting wheel 20 is offset from the geometric center point 46 of the ring track 32 and the ring gear 44. This makes it possible to achieve a particularly effective pulse amplification during soil erosion. Per revolution of the cutting wheel 20 up and down movements when removing the soil can be generated with different amplitudes. Depending on the desired kinematics or vibration of the cutting wheel 20 different orientations of the offset of the center 46 relative to the axis of rotation 22 are possible.
  • the vibration due to the elliptical ring track 32 can be amplified by the offset along the long Axis or half axis of the ellipse is aligned.
  • the vibration per revolution is once amplified and attenuated once.
  • a defined oscillation which corresponds to the oscillating cutting path, can be transmitted to the trench wall cutter 10 or the milling frame 12.
  • the trench wall cutter 10 or the trimming frame 12 thus moves during operation periodically corresponding to the peripheral portions 34, 36 with a larger and smaller distance from the rotation axis 22 up and down. This causes an increase in the momentum forces on the tillage tools 30 and an improvement in soil erosion while reducing frictional wear on the tillage tools 30.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Road Repair (AREA)
  • Soil Working Implements (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Earth Drilling (AREA)
  • Milling Processes (AREA)
EP12001469.1A 2012-03-05 2012-03-05 Schlitzwandfräse und Verfahren zum Erstellen eines Schlitzes im Boden Not-in-force EP2636799B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP12001469.1A EP2636799B1 (de) 2012-03-05 2012-03-05 Schlitzwandfräse und Verfahren zum Erstellen eines Schlitzes im Boden
BR102013001681-0A BR102013001681A2 (pt) 2012-03-05 2013-01-23 Fresa de parede fendida e processo para a formação de uma fenda no solo
JP2013032715A JP5705896B2 (ja) 2012-03-05 2013-02-22 溝切機及び対地溝切方法
US13/777,859 US9074341B2 (en) 2012-03-05 2013-02-26 Trench wall cutter and method for producing a trench in the ground
KR1020130022603A KR101446255B1 (ko) 2012-03-05 2013-03-04 트렌치 벽 절단기 및 지반에 트렌치를 생성하기 위한 방법
CN201310069026.7A CN103306324B (zh) 2012-03-05 2013-03-05 沟渠壁切割机以及用于在土地中产生沟渠的方法
HK13111769.1A HK1184512A1 (en) 2012-03-05 2013-10-18 Drilling tool for making a subterraneous curtain wall and method of making such wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12001469.1A EP2636799B1 (de) 2012-03-05 2012-03-05 Schlitzwandfräse und Verfahren zum Erstellen eines Schlitzes im Boden

Publications (2)

Publication Number Publication Date
EP2636799A1 EP2636799A1 (de) 2013-09-11
EP2636799B1 true EP2636799B1 (de) 2014-05-14

Family

ID=45841159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12001469.1A Not-in-force EP2636799B1 (de) 2012-03-05 2012-03-05 Schlitzwandfräse und Verfahren zum Erstellen eines Schlitzes im Boden

Country Status (7)

Country Link
US (1) US9074341B2 (xx)
EP (1) EP2636799B1 (xx)
JP (1) JP5705896B2 (xx)
KR (1) KR101446255B1 (xx)
CN (1) CN103306324B (xx)
BR (1) BR102013001681A2 (xx)
HK (1) HK1184512A1 (xx)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2685007B1 (de) * 2012-07-10 2015-01-07 BAUER Maschinen GmbH Fräsrad für eine Schlitzwandfräse
CN103770224B (zh) * 2014-01-29 2016-06-01 徐工集团工程机械股份有限公司 一种双轮铣槽机的进给装置及双轮铣槽机
CN104806261A (zh) * 2015-05-04 2015-07-29 宁波市恒通液压科技有限公司 一种铣挖机的铣挖头
CN106245697B (zh) * 2016-08-08 2018-10-12 中国华冶科工集团有限公司 沟槽清理机
GB201706643D0 (en) 2017-04-26 2017-06-07 Ccmj Systems Ltd Diaphragm walls
GB2568092A (en) 2017-11-06 2019-05-08 Ccmj Systems Ltd Improved cutting assembly
KR102235301B1 (ko) 2018-12-05 2021-04-02 한국지질자원연구원 트렌치 평탄화 전동장치
DE202019102438U1 (de) * 2019-02-21 2020-05-25 Liebherr-Components Biberach Gmbh Fräsanordnung für eine Schlitzwandfräse
CN110485496A (zh) * 2019-09-24 2019-11-22 成都市猎石者破岩科技有限责任公司 开槽装置
CN110777866B (zh) * 2019-12-05 2024-04-30 江苏徐工工程机械研究院有限公司 建筑施工用铣槽机的铣轮组件和铣槽机
CN114263230B (zh) * 2021-11-30 2022-07-26 广东省源天工程有限公司 一种超深地下连续墙结构的施工方法

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Also Published As

Publication number Publication date
HK1184512A1 (en) 2014-01-24
JP2013185435A (ja) 2013-09-19
KR101446255B1 (ko) 2014-10-01
KR20130101465A (ko) 2013-09-13
CN103306324A (zh) 2013-09-18
BR102013001681A2 (pt) 2014-12-02
US20130227862A1 (en) 2013-09-05
CN103306324B (zh) 2015-08-26
US9074341B2 (en) 2015-07-07
EP2636799A1 (de) 2013-09-11
JP5705896B2 (ja) 2015-04-22

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