EP2028319A1 - Dispositif de fraisage pour le travail du sol. - Google Patents

Dispositif de fraisage pour le travail du sol. Download PDF

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Publication number
EP2028319A1
EP2028319A1 EP07016586A EP07016586A EP2028319A1 EP 2028319 A1 EP2028319 A1 EP 2028319A1 EP 07016586 A EP07016586 A EP 07016586A EP 07016586 A EP07016586 A EP 07016586A EP 2028319 A1 EP2028319 A1 EP 2028319A1
Authority
EP
European Patent Office
Prior art keywords
cutting tool
bearing plate
milling device
indentation
cutting
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.)
Granted
Application number
EP07016586A
Other languages
German (de)
English (en)
Other versions
EP2028319B1 (fr
Inventor
Wilhelm Ruby
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38626168&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2028319(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP07016586A priority Critical patent/EP2028319B1/fr
Priority to PL07016586T priority patent/PL2028319T3/pl
Priority to ES07016586T priority patent/ES2342847T3/es
Priority to AT07016586T priority patent/ATE465303T1/de
Priority to DE502007003525T priority patent/DE502007003525D1/de
Publication of EP2028319A1 publication Critical patent/EP2028319A1/fr
Application granted granted Critical
Publication of EP2028319B1 publication Critical patent/EP2028319B1/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
    • 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
    • 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
    • E02F5/12—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with equipment for back-filling trenches or ditches

Definitions

  • the invention relates to a milling device for soil cultivation according to the preamble of claim 1.
  • a milling device for soil cultivation according to the preamble of claim 1.
  • Such a device is formed with at least one bearing plate and at least one adjustable cutting tool which is rotatably mounted on the bearing plate, wherein the cutting tool describes a trajectory upon rotation on the bearing plate, and wherein the adjustable cutting tool between a retracted position for advancing the cutting tool on the bearing plate and an operating position for working off of the bearing plate pending soil material is adjustable.
  • a generic milling device is for example from the EP 0 291 027 A1 known.
  • trench wall milling with cutting wheels arranged laterally on a bearing plate, there is the problem that soil material below the bearing plate can not be processed directly by the cutting wheels. Therefore, in the EP 0 291 027 A1 proposed to store hingedly adjacent to the bearing plate cutting teeth on the cutting wheels.
  • the folding teeth can be unfolded in an area below the milling blade to process underlying soil material, while in a further rotation of the cutting wheel, the folding teeth are folded back so that the bearing plate is not damaged by the cutting teeth.
  • trench wall cutters with adjustable toes for working off soil material below the milling plate are from the EP 1 350 893 A1 , of the DE 39 26 976 C2 and from the DE 38 19 525 C1 known, in the case of the latter document in place of a fold-out Fräszahnes a sliding milling tool is used.
  • Rotary mining equipment with adjustable processing tools are also made of SU 101 02 17 A , of the SU 108 61 52 A , of the US 3,279,856 and the US 3,290,099 known.
  • the known folding teeth are heavily stressed by the ongoing adjustment and the associated load changes, which may be accompanied by a relatively high wear of the teeth and a high load on the drive gear of the cutting wheels.
  • the invention has for its object to provide a generic milling device with very high reliability and very long service life.
  • a milling device is characterized in that the bearing plate in the region of the trajectory of the adjustable cutting tool has at least one indentation.
  • a basic idea of the invention can be seen to provide a recess in the bearing plate, on the trajectory of the cutting tool, which protrudes into the bearing plate.
  • This recess which can also be referred to as a recess, can be dimensioned so that it can receive the cutting tool in a position spaced from the pending floor in its operating position.
  • the indentation allows premature adjustment of the cutting tool from the retracted position in the direction of the operating position or a delayed adjustment from the operating position in the direction of the retracted position, wherein the cutting tool is spaced from the upcoming ground during premature or delayed adjustment.
  • a recess according to the invention also represents a mere taper of the bearing plate upwards, without an overlying projection of the bearing plate is provided.
  • the bearing plate has its maximum width below the recess or taper, preferably at the height of the axis of rotation.
  • the indentation can be provided for prematurely retracting the adjustable cutting tool into its operating position before it comes into cutting engagement with the ground. Due to the premature retraction, the cutting tool is not immediately loaded with the cutting load during the adjustment. Thus, the loading of the cutting tool does not occur abruptly but slowly increasing, that is, there is a comparatively gentle increase in force on the cutting tool when penetrating into the soil. This leads to a comparatively low impact load for the cutting tool and in particular for the gear, which can be provided for rotating the cutting tool and an optionally existing cutting wheel on the bearing plate. In particular, the risk of damage to both the cutting tool and the transmission is reduced according to the invention, since the load curve for the cutting tool does not change jerky but continuously.
  • the end shield only has to be formed locally with a reduced material thickness in the region of the indentation, the rigidity of the end shield is at most slightly influenced. This is particularly advantageous against the background that the end shield, which can also be referred to as a milling blade, in the region of the trajectory and thus the indentation can be exposed to a high bending moment, since there are often long lever lengths given.
  • the cutting tool in the trajectory that describes the adjustable tool, it may preferably be a circular path.
  • the cutting tool can be provided for a milling operation, that is, for a removal of material during a propulsion in a transverse, in particular perpendicular, directed to its axis of rotation propulsion direction.
  • the cutting tool is spaced along its entire trajectory from the axis of rotation about which the cutting tool is rotated.
  • the indentation extends from a flat side of the endshield into the endshield, that is to say that the endshield has a variable thickness along the trajectory, the thickness decreasing in particular towards the peripheral region of the shield.
  • a structurally particularly simple milling device is given by the fact that the indentation extends from a circumferential side of the endshield into the endshield.
  • the end shield be continuous in the region of the indentation when looking in the direction of the axis of rotation of the cutting tool.
  • a recess is arranged at least on a tool exit side of the bearing plate.
  • Under the tool exit side can be understood in particular the side on which the adjustable cutting tool emerges during normal turning operation on the end shield, and / or the side on which the cutting tool is moved from the retracted position to the operating position.
  • In an arrangement of the indentation on the tool outlet side of the loading process of the cutting tool can be damped, in which often a particularly pronounced load change occurs.
  • a recess on a tool entry side of the bearing plate. This makes it possible to also dampen the unloading operation of the cutting tool, in which the cutting tool is brought out of the cutting engagement with the ground and brought into its retracted position, and to reduce the associated force peaks.
  • a particularly reliable milling operation is made possible according to the invention in that a control for adjusting the cutting tool is provided, wherein the controller is designed so that it adjusts the cutting tool in the region of the recess between the retracted position and the operating position. If the indentation is arranged on the tool outlet side, the controller can adjust the cutting tool in the region of the indentation, in particular from the retracted position to the operating position.
  • the control may be, for example, a cam control.
  • a control track may be provided on the bearing plate along the trajectory of the cutting tool, on which the cutting tool rotates, and which defines an axial position of the cutting tool with respect to its axis of rotation.
  • the bearing plate is formed at its periphery at least in the region of the recess with a chamfer.
  • the end shield is chamfered at its periphery in the region of the indentation. Such a chamfer allows an even earlier adjustment of the cutting tool, the rigidity of the end shield is relatively little influenced.
  • a structurally particularly simple and at the same time compact milling device is given according to the invention in that a frame is provided on which the bearing plate is mounted, and that the indentation is provided in particular in a transition region of the bearing plate to the frame.
  • the indentation is expediently provided in an outer region of the end shield. In particular, it can be arranged above the largest extent of the bearing plate. Conveniently, the indentation is provided in an upper region of the end shield above the center plane of the end of the bearing plate.
  • the endshield With regard to the rigidity of the endshield, it is furthermore advantageous for the endshield to have a tangential section on the indentation, on which circumference runs at least approximately tangentially to the trajectory of the cutting tool. According to this embodiment, the indentation of the trajectory of the cutting tool thus follows, so that with good functionality a weakening of the bearing plate is avoided.
  • the bearing plate In Tangentialabites the bearing plate is preferably formed with a straight outer edge. But it can also be provided a curved outer edge.
  • the indentation is limited by a plurality, in particular three, straight edges on the circumference of the bearing plate.
  • the straight design of the edges is accompanied by a particularly low design effort.
  • the end shield prefferably has a step section on the indentation, in particular in a region of the indentation facing the frame, on which the end shield widens stepwise.
  • the step section is expediently provided on an upper side of the recess facing away from the axis of rotation.
  • Such a step section makes it possible to increase the dimensions of the end plate immediately after the indentation again, so that a particularly high rigidity is given.
  • the step portion may be defined by two edges which adjoin one another at least approximately at right angles.
  • the adjustable cutting tool is pivotable.
  • the cutting tool is pivoted between the retracted position and the operating position.
  • the pivot axis of the cutting tool is suitably perpendicular to the axis of rotation of the cutting tool and in particular tangential to the trajectory.
  • the adjustable cutting tool has at least one cutting tooth.
  • the cutting tool can be of any desired design and can also have, for example, a cutting roller. If a cutting tooth is given and the cutting tool is designed as a pivotable cutting tool, the cutting tooth can also be referred to as a folding tooth.
  • At least one cutting wheel is rotatably mounted on the bearing plate.
  • two cutting wheels can be provided coaxially on opposite sides of the bearing plate.
  • the adjustable cutting tool is expediently non-rotatably connected to the cutting wheel and / or arranged on the cutting wheel.
  • On the circumference of the cutting wheel further cutting tools are preferably provided, which may be formed in particular at least partially stationary.
  • a rotary drive is provided for rotationally driving the cutting wheel and / or the adjustable cutting tool.
  • the rotary drive expediently has a gear which is arranged at least partially in the interior of the bearing plate.
  • the transmission may have an output shaft on which the cutting wheel is arranged, and a drive shaft which is perpendicular to the output shaft.
  • the milling device is designed as a trench wall cutter with at least four preferably axially parallel cutting wheels, which are positioned to produce an at least approximately rectangular milling cross-section.
  • the trench wall cutter can have at least two adjacent and / or aligned end shields, on each of which two cutting wheels are arranged coaxially. Additional end shields with milling and / or mixing wheels can be provided on an upper side of the frame.
  • the invention also relates to a method for producing a foundation element, in particular a slot wall panel, in the ground, in which a milling device according to the invention is introduced to form a hole in the ground and in the hole a fluid is arranged, which cures to the foundation element.
  • FIGS. 1 to 3 An embodiment of a bearing plate 10 for use in a milling device according to the invention is in the FIGS. 1 to 3 shown.
  • the bearing plate 10 has two opposite flat sides 19 and 19 'and a U-shaped peripheral side 13.
  • a flange 11 is provided with holes 12 for mounting a Fräsradgetriebes, wherein the transmission and the corresponding mounted on the gear cutting wheels in the FIGS. 1 to 3 are not shown for clarity.
  • a rotary drive which is likewise not shown in the figures, can be provided.
  • the cutting wheels are rotatably mounted on the bearing plate about an axis of rotation 25, wherein the axis of rotation 25 is perpendicular to the two flat sides 19, 19 'of the bearing plate 10.
  • a cutting tool 20 is provided with a cutting tooth 21 which is rotatably mounted about the rotation axis 25 and in particular is arranged on a cutting wheel.
  • the cutting tool 20 has a pivot joint 23 with a perpendicular and / or tangential with respect to the axis of rotation 25 extending pivot axis.
  • the pivot joint 23 allows the cutting tool 20 with the cutting tooth 21st relative to the bearing plate 10 to be adjusted, with the adjustment also an axial movement with respect to the axis of rotation 25 is accompanied.
  • the cutting tool 20 can be adjusted with the cutting tooth 21 between a retraction position in which the cutting tool 20 can be rotated along the bearing plate 10, and an operating position in which the cutting tooth on the bearing plate 10 pending soil material can work off.
  • the cutting tool 20 is arranged with the cutting tooth 21 in the operating position closer to the axial bearing plate center than in the retracted position.
  • the cutting tool 20 In rotating operation, the cutting tool 20 describes the in Fig. 2 In regular milling operation, the cutting tool 20 and the associated cutting wheel is thereby rotated in the direction of arrow 27, so that a cutting edge of the cutting tooth 21 acts in the cutting direction on the upcoming ground.
  • the bearing plate 10 On the tool exit side 14, ie on the side on which the cutting tool 20 with the cutting tooth 21 in the regular, cutting milling operation with direction of rotation 27 laterally protrudes beyond the bearing plate 10, the bearing plate 10 has a recess 30.
  • This indentation 30 is formed in that the peripheral side 13 is retracted to the interior of the bearing plate 10 and in particular to the axis of rotation 25 out.
  • the indentation 30 allows folding of the cutting tool 20 about the pivot joint 23 around in the operating position before the cutting tool 20 with the cutting tooth 21 due to the rotation in the direction of rotation 27 reaches an engagement position in the upcoming soil.
  • a steadily increasing force increase is given to the cutting tooth 21 and the cutting tool 20 and a sudden load on the cutting tool 20 with cutting tooth 21 and on the transmission, not shown in the figures, is counteracted.
  • the indentation 30 has a tangential section 33.
  • the peripheral side 13 is formed with a straight edge, which runs at least approximately tangentially to the trajectory 26 or to the axis of rotation 25.
  • the tangential section 33 restricts the indentation 30 on its lower side facing the upcoming floor.
  • the indentation 30 is delimited by a step section 36, in which the peripheral side 13 is angled at right angles.
  • a horizontally extending edge 37 is formed in the step section 36 on the peripheral side 13, along which the bearing plate 10 widens.
  • a vertically extending edge 38 is provided in the step portion 36 on the peripheral side 13, which connects at right angles to the horizontally extending edge 37.
  • the vertically extending edge 38 has a recess 39, which is semicircular in the illustrated embodiment.
  • a chamfer 17 is provided on the peripheral side 13 of the endshield, so that the thickness of the endshield 10 measured in the direction of the axis of rotation 25 decreases towards the outside.
  • FIG. 4 An embodiment of a trench wall cutter 61 formed milling device, on the end shields according to the FIGS. 1 to 3 can be arranged is in Fig. 4 shown.
  • the trench wall cutter 61 has a frame 50 which is formed with an at least approximately rectangular cross section and which serves to guide the trench wall cutter 61 in the slot produced. On this frame 50, the trench cutter 61 is suspended vertically adjustable on a carrier 63.
  • the bearing plates 10 are connected in an upper region of the legs of the U-shaped peripheral side 13 with the frame 50.
  • a cutting wheel 60 On both sides of the first bearing plate 10 is in each case a cutting wheel 60 and on both sides of the bearing plate 10 'is in each case a cutting wheel 60' arranged coaxially, wherein in the figure the Fig. 4 the rear cutting wheels are covered by the illustrated front cutting wheels 60, 60 '.
  • the four cutting wheels 60, 60 'of the adjacent end shields 10, 10' are arranged axially parallel and form a rectangular Abtragungsquerrough.
  • two end shields 10 and 10 'are arranged side by side can be provided, the tool exit sides 14 and / or the recesses 30 each outside on the end shields 10, 10 'to order.
  • the tool outlet sides 14 and / or the indentations 30 can also be provided on the inside, that is to say on the sides of the end shields 10, 10 'facing the respectively adjacent end shield 10', 10 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Milling Processes (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Treatment Of Sludge (AREA)
  • Earth Drilling (AREA)
  • Shovels (AREA)
EP07016586A 2007-08-23 2007-08-23 Dispositif de fraisage pour le travail du sol. Active EP2028319B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP07016586A EP2028319B1 (fr) 2007-08-23 2007-08-23 Dispositif de fraisage pour le travail du sol.
PL07016586T PL2028319T3 (pl) 2007-08-23 2007-08-23 Urządzenie frezujące do obróbki podłoża
ES07016586T ES2342847T3 (es) 2007-08-23 2007-08-23 Dispositivo de fresa para la mecanizacion del suelo.
AT07016586T ATE465303T1 (de) 2007-08-23 2007-08-23 Fräsvorrichtung zur bodenbearbeitung
DE502007003525T DE502007003525D1 (de) 2007-08-23 2007-08-23 Fräsvorrichtung zur Bodenbearbeitung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07016586A EP2028319B1 (fr) 2007-08-23 2007-08-23 Dispositif de fraisage pour le travail du sol.

Publications (2)

Publication Number Publication Date
EP2028319A1 true EP2028319A1 (fr) 2009-02-25
EP2028319B1 EP2028319B1 (fr) 2010-04-21

Family

ID=38626168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07016586A Active EP2028319B1 (fr) 2007-08-23 2007-08-23 Dispositif de fraisage pour le travail du sol.

Country Status (5)

Country Link
EP (1) EP2028319B1 (fr)
AT (1) ATE465303T1 (fr)
DE (1) DE502007003525D1 (fr)
ES (1) ES2342847T3 (fr)
PL (1) PL2028319T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112095700A (zh) * 2020-09-18 2020-12-18 江苏科弘岩土工程有限公司 一种具有摆刀单元的双轮铣槽机铣头装置
DE102019135781A1 (de) * 2019-12-23 2021-06-24 Marcus Burg Klappzahn für ein Fräsrad
EP4311881A1 (fr) * 2022-07-27 2024-01-31 BAUER Maschinen GmbH Roue de fraisage pour une fraise pour rideaux souterrains et procédé de transformation d'une roue de fraisage
EP4311882A1 (fr) * 2022-07-28 2024-01-31 BAUER Maschinen GmbH Fraise pour parois moulées et procédé de formation d'une fente fraisée dans le sol

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564855A (en) * 1968-04-08 1971-02-23 Johann Morner Method and device for making slit walls
JPH05132943A (ja) * 1991-11-08 1993-05-28 Tokiwa Sangyo Kk 掘削機
FR2805551A1 (fr) * 2000-02-29 2001-08-31 Spie Fond S Outil pour creuser des tranchees dans le sol et engin tel qu'une excavatrice a fraise(s) comprenant un tel outil
EP1231327A1 (fr) * 2001-01-23 2002-08-14 Compagnie Du Sol Outil de fraisage pour la coupe de terrains durs et de terrains collants
EP1746213A1 (fr) * 2005-07-21 2007-01-24 Compagnie du Sol Installation de réalisation de paroi enterrée par mélange du sol avec un liant et procédé de correction de trajectoire de la tête de forage d'une telle installation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564855A (en) * 1968-04-08 1971-02-23 Johann Morner Method and device for making slit walls
JPH05132943A (ja) * 1991-11-08 1993-05-28 Tokiwa Sangyo Kk 掘削機
FR2805551A1 (fr) * 2000-02-29 2001-08-31 Spie Fond S Outil pour creuser des tranchees dans le sol et engin tel qu'une excavatrice a fraise(s) comprenant un tel outil
EP1231327A1 (fr) * 2001-01-23 2002-08-14 Compagnie Du Sol Outil de fraisage pour la coupe de terrains durs et de terrains collants
EP1746213A1 (fr) * 2005-07-21 2007-01-24 Compagnie du Sol Installation de réalisation de paroi enterrée par mélange du sol avec un liant et procédé de correction de trajectoire de la tête de forage d'une telle installation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019135781A1 (de) * 2019-12-23 2021-06-24 Marcus Burg Klappzahn für ein Fräsrad
CN112095700A (zh) * 2020-09-18 2020-12-18 江苏科弘岩土工程有限公司 一种具有摆刀单元的双轮铣槽机铣头装置
CN112095700B (zh) * 2020-09-18 2022-09-09 江苏科弘岩土工程有限公司 一种具有摆刀单元的双轮铣槽机铣头装置
EP4311881A1 (fr) * 2022-07-27 2024-01-31 BAUER Maschinen GmbH Roue de fraisage pour une fraise pour rideaux souterrains et procédé de transformation d'une roue de fraisage
WO2024022816A1 (fr) * 2022-07-27 2024-02-01 Bauer Maschinen Gmbh Roue de fraisage pour un dispositif de coupe de paroi de diaphragme et procédé de modification d'une roue de fraisage
EP4311882A1 (fr) * 2022-07-28 2024-01-31 BAUER Maschinen GmbH Fraise pour parois moulées et procédé de formation d'une fente fraisée dans le sol

Also Published As

Publication number Publication date
DE502007003525D1 (de) 2010-06-02
ATE465303T1 (de) 2010-05-15
EP2028319B1 (fr) 2010-04-21
PL2028319T3 (pl) 2010-07-30
ES2342847T3 (es) 2010-07-15

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