EP0263762B1 - Fräsvorrichtung zum Ausheben von Gräben im Boden - Google Patents

Fräsvorrichtung zum Ausheben von Gräben im Boden Download PDF

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Publication number
EP0263762B1
EP0263762B1 EP87402244A EP87402244A EP0263762B1 EP 0263762 B1 EP0263762 B1 EP 0263762B1 EP 87402244 A EP87402244 A EP 87402244A EP 87402244 A EP87402244 A EP 87402244A EP 0263762 B1 EP0263762 B1 EP 0263762B1
Authority
EP
European Patent Office
Prior art keywords
plate
drums
milling
fact
support plate
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.)
Expired - Lifetime
Application number
EP87402244A
Other languages
English (en)
French (fr)
Other versions
EP0263762A1 (de
Inventor
Daniel Barre
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.)
Soletanche SA
Original Assignee
Soletanche SA
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 Soletanche SA filed Critical Soletanche SA
Priority to AT87402244T priority Critical patent/ATE50014T1/de
Publication of EP0263762A1 publication Critical patent/EP0263762A1/de
Application granted granted Critical
Publication of EP0263762B1 publication Critical patent/EP0263762B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the present invention converges a milling machine for digging trenches in the ground, and more particularly such a machine of the type comprising at least one substantially vertical support plate on either side of which two milling drums are rotatably mounted around an axis substantially perpendicular to the plate.
  • This thickness of the support plate creates difficulties during the construction of the trench. Indeed, the milling tools mounted on the two drums on the side of the support plate must be sufficiently spaced from each other to allow the passage of this plate during rotation of the drums. This results in the formation of a step at the bottom of the trench, a width generally at least equal to that of the plate.
  • the lower edge of the support plate abuts on this step, and can therefore prevent drilling progress.
  • Circular grooves have also been made in the support plate, centered on the axis of the drums, so that the milling tools fixedly mounted on the drums are spaced apart by a distance less than the thickness of the plate (cf. DE-A 2 362 425).
  • This solution has proved satisfactory.
  • the plate thicknesses currently used the fact remains that the step remains of sufficient size to withstand the weight of the milling machine exerted through the lower surfaces of the edge of the support plate.
  • the present invention aims to provide a different solution to the problem set out above, possibly in combination with the means already known.
  • the invention relates to a milling machine for digging trenches in the ground, of the type comprising at least one substantially vertical support plate on either side of which two milling drums are rotatably mounted around of an axis substantially perpendicular to the plate, characterized in that at least one movable finger is mounted on the lower edge of said plate, drive means being provided to cause the oscillation of said finger on both sides other from the median plane of said plate during rotation of the drums.
  • the fingers according to the invention come into contact with the vertical walls of the step, on which they exert a component of lateral force which tends to break this step.
  • the present invention makes it easier to disaggregate this step and to ensure better penetration of the milling machine.
  • said finger can be mounted on the lower edge of the plate by means of elastic means.
  • said drive means can comprise cams placed on the sides of the milling drums situated opposite the support plate, these cams being able to be notably substantially continuous and sinusoidal .
  • the milling machine comprises a plurality of fingers mounted on said lower edge of the support plate, said drive means being arranged so that the successive fingers oscillate in opposite opposition relative to the median plane of the plate.
  • the lateral forces exerted by the fingers of the milling machine on the step may have a substantially zero lateral component, which avoids deviations of the machine and therefore ensures the verticality of the trench.
  • the milling machine shown in Figure 1 comprises in known manner a frame 1 at the bottom of which are mounted two milling drums 2 by means of vertical support plates 3.
  • the axes 4 of rotation of the drums are perpendicular to the plates 3.
  • hydraulic motors 5 are mounted on the plates 3 and have their output shafts integral with the drums 2 so as to rotate them in the opposite direction, in the direction of the arrows 6.
  • the disaggregated soil by the drums 2 is brought back towards the lateral axis 7 of the milling machine where they are sucked by a suction nozzle 8.
  • the milling drums 2 carry at their periphery milling peaks 9 which ensure the disintegration of the ground during the rotation of the drums.
  • the most 9a peaks close to the plate 3 are inclined towards the transverse axis 10 of this plate so as to be as close as possible.
  • a step 11 is formed at the bottom of the trench 12, step whose thickness is at least equal to the thickness of the plate 3, and on which the lower edge of the plate 3 could come into abutment during the descent of the machine.
  • fingers 13 are mounted on the lower semi-circular edge 14 of each plate 3.
  • the fingers 13 are directed substantially perpendicular to the edge 14 on which they are mounted by means of elastic blocks 15, of so as to allow their oscillation along the arrow 15 on either side of the median plane 10 of the plate 3.
  • the inner sides of the drums 2, located opposite the plate 3, are cut along a sinusoidal continuous profile 17, so as to form two guide or cam surfaces, between which is disposed a head 18 of the finger 13.
  • the surfaces 17 are arranged so that the movements of two fingers 13 arranged consecutively on a surface 14 take place in phase opposition on either side of the plane 10.
  • the fingers 13 exert on the step 11, on the one hand transverse forces, and on the other hand torsional forces. These efforts cause the step 11 to rupture so that it cannot oppose the progress of milling the trench.
  • these movements in phase opposition cause zero transverse force on the milling machine, so that it is not deviated from the vertical during its progression.
  • milling drums which have been described as driven by hydraulic motors located in their hubs, can be driven by any other means, for example by means of chains connected to motors arranged in the frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Shovels (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Soil Working Implements (AREA)
  • Road Repair (AREA)

Claims (5)

1. Fräsvorrichtung zum Ausheben von Gräben im Boden mit mindestens einer im wesentlichen vertikalen Stützplatte (3), an der beiderseits zwei Frästrommeln (2) um eine zur Stützplatte annähernd orthogonale Achse (4) drehbar gelagert sind, dadurch gekennzeichnet, daß an der Unterkante (14) der Stützplatte mindestens ein beweglicher Finger (13) angeordnet ist und daß Antriebsmittel vorgesehen sind, welche den Finger während der Rotation der Frästrommein in eine Pendelbewegung zu beiden Seiten der Mittelebene (10) der Stützplatte versetzen.
2. Fräsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Finger an der Unterkante der Stützplatte unter Zwischenschaltung elastischer Mittel (15) angeordnet ist.
3. Fräsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Antriebsmittel Nocken (17) aufweisen, die an den der Stützplatte gegenüberliegenden Seiten der Frästrommein angeordnet sind.
4. Fräsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Nocken als im wesentlichen stetige und sinusförmige Nocken ausgebildet sind.
5. Fräsvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß eine Mehrzahl von Fingern auf der Unterkante der Stützplatte befestigt sind und daß die Antriebsmittel so angeordnet sind, daß aufeinanderfolgende Finger gegenphasig in bezug auf die Mittelebene schwingen.
EP87402244A 1986-10-08 1987-10-08 Fräsvorrichtung zum Ausheben von Gräben im Boden Expired - Lifetime EP0263762B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87402244T ATE50014T1 (de) 1986-10-08 1987-10-08 Fraesvorrichtung zum ausheben von graeben im boden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8614003A FR2605028B1 (fr) 1986-10-08 1986-10-08 Engin de fraisage pour creuser des tranchees dans le sol.
FR8614003 1986-10-08

Publications (2)

Publication Number Publication Date
EP0263762A1 EP0263762A1 (de) 1988-04-13
EP0263762B1 true EP0263762B1 (de) 1990-01-31

Family

ID=9339665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402244A Expired - Lifetime EP0263762B1 (de) 1986-10-08 1987-10-08 Fräsvorrichtung zum Ausheben von Gräben im Boden

Country Status (9)

Country Link
US (1) US4824176A (de)
EP (1) EP0263762B1 (de)
JP (1) JPS6397731A (de)
AT (1) ATE50014T1 (de)
CY (1) CY1686A (de)
DE (2) DE3761574D1 (de)
FR (1) FR2605028B1 (de)
HK (1) HK76693A (de)
SG (1) SG129392G (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035071A (en) * 1988-10-14 1991-07-30 Bauer Spezialtiefbau Gmbh Trench wall cutter
US5056242A (en) * 1989-05-12 1991-10-15 Finic, B.V. Underground wall construction method and apparatus
GB2252576B (en) * 1991-02-06 1994-07-27 Anderson Group Plc Mining machine
FR2806112B1 (fr) * 2000-03-13 2002-06-14 Cie Du Sol Appareil de forage en terrain dur
FR2806111B1 (fr) * 2000-03-13 2002-06-14 Cie Du Sol Appareil de forage en terrain dur
FR2862336B1 (fr) * 2003-11-18 2006-03-17 Cie Du Sol Machine de forage a outils rotatifs
JP4636997B2 (ja) * 2005-10-26 2011-02-23 株式会社東亜利根ボーリング 地下連続壁用水平多軸掘削機及びそれを使用した地下連続壁工法
FR3041024B1 (fr) * 2015-09-10 2017-09-29 Soletanche Freyssinet Machine de forage munie d'un dispositif d'ancrage permettant un deplacement horizontal du module de forage en position ancree
FR3041023B1 (fr) * 2015-09-10 2017-09-29 Soletanche Freyssinet Machine de forage comprenant un amortisseur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1634262B1 (de) * 1966-04-09 1970-09-24 Bade & Co Gmbh Fraeswerkzeug zum Herstellen von Schlitzen fuer Schlitzwaende
FR2349688A1 (fr) * 1976-04-30 1977-11-25 Fondamat Sarl Organe rotatif, notamment pour le creusement du sol
US4718504A (en) * 1985-03-15 1988-01-12 Tone Boring Co., Ltd. Trench excavator
DE3519774A1 (de) * 1985-06-03 1986-12-04 Karl Bauer Spezialtiefbau GmbH & Co KG, 8898 Schrobenhausen Fraesvorrichtung fuer eine schlitzwandfraese

Also Published As

Publication number Publication date
HK76693A (en) 1993-08-06
JPS6397731A (ja) 1988-04-28
CY1686A (en) 1993-10-10
DE3761574D1 (de) 1990-03-08
FR2605028B1 (fr) 1988-12-09
US4824176A (en) 1989-04-25
DE263762T1 (de) 1988-09-22
EP0263762A1 (de) 1988-04-13
ATE50014T1 (de) 1990-02-15
SG129392G (en) 1993-04-16
FR2605028A1 (fr) 1988-04-15

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