EP0253726A1 - Vorrichtung zum Ausheben von Gräben mit Fräsern - Google Patents

Vorrichtung zum Ausheben von Gräben mit Fräsern Download PDF

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Publication number
EP0253726A1
EP0253726A1 EP87401642A EP87401642A EP0253726A1 EP 0253726 A1 EP0253726 A1 EP 0253726A1 EP 87401642 A EP87401642 A EP 87401642A EP 87401642 A EP87401642 A EP 87401642A EP 0253726 A1 EP0253726 A1 EP 0253726A1
Authority
EP
European Patent Office
Prior art keywords
drums
core
tools
machine according
axes
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
EP87401642A
Other languages
English (en)
French (fr)
Other versions
EP0253726B1 (de
Inventor
Karl Bollinger
Gerardus Evers
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 AT87401642T priority Critical patent/ATE55792T1/de
Publication of EP0253726A1 publication Critical patent/EP0253726A1/de
Application granted granted Critical
Publication of EP0253726B1 publication Critical patent/EP0253726B1/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 relates to machines which make it possible to dig trenches in the ground at great depths, using cylindrical cutters which are arranged at the bottom of the machine and which are driven in rotation to disintegrate the ground.
  • These machines of known type generally comprise two identical cutters rotating in opposite directions, each consisting of two half-drums supported by a flat core arranged vertically.
  • the cutters can be driven by hydraulic or electric motors located along their axes. They can also be done by mechanical devices such as shafts with gearboxes or chains, using motors which are located above the cutters in the body of the machine.
  • the core must be able to withstand considerable efforts, because it is necessary to apply a significant torque to the strawberries in order to be able to disintegrate soils made up of rocks and there is, moreover, at the strawberries very significant vibrations which are affect the soul.
  • the core must be as strong a piece as possible. It is most often made of cast steel with high mechanical characteristics.
  • This step which is thus brought to support a part of the weight of the machine normally breaks by buckling and this all the more easily as the core has a thinner thickness.
  • the present invention provides a particularly simple and effective solution to this problem.
  • the subject of the present invention is a machine for digging trenches in the ground using cutters, of the type in which two half-drums carrying milling tools are supported by a flat core arranged vertically, characterized in that the axes of the two half-drums are slightly inclined downward away from the plane of the core.
  • the axes of the half-drums can be inclined, for example from 1 to 10 degrees relative to the horizontal.
  • the tools which are located on the half-drums in the vicinity of the core can work on the lower part of the machine, in the immediate vicinity of one another, eliminating the step or by leaving only a step whose thickness is sufficiently small so that its rupture under the action of the lower part of the core does not raise any difficulties.
  • the tools arranged at the external periphery of the half-drums are offset towards the outside so that, when these tools are in the lower part of the half-drums, they break up the ground over a width which corresponds substantially to the width occupied at their upper part by the two half-drums.
  • the ends of the milling tools arranged on each half-drum are located on a truncated cone whose generatrices have the same inclination as that of the axes of the half-drums, so that the vertices of these tools are located on a substantially horizontal line when they are at the bottom of the drums.
  • the core can be produced with a vertical trapezoidal section which makes it possible to give it the mechanical solidity which is necessary for the transmission of very large forces to the half-drums.
  • the two half-drums can be driven using a motor whose casing is made integral with the core and which is provided with a hollow grooved axis inside which engages a grooved shaft which rotates each of the half-drums, for example also by means of grooves.
  • FIG. 1 There is diagrammatically shown in FIG. 1 the lower part of the body 1 of the machine as well as the two drums 2 which are constituted by half-drums secured on either side of the flat webs 3.
  • the outline of the tools 4 placed on the drums 2 has also been represented schematically by dashed lines.
  • the drums 2 rotate in opposite directions, as indicated by the arrows, so as to bring between them the debris torn from the ground which are eliminated by the suction nozzle 5 of a pump not shown.
  • Figure 2 shows a section along II-II of an embodiment of the invention, the core 3 which has a trapezoidal section and which is therefore much thicker at its upper part than its lower part.
  • the core 3 is provided with the plate 6 which allows it to be securely fastened to the lower part of the body of the machine.
  • the half-drums 2a and 2b which are rotated around the axes 7 which are inclined downward from the core relative to the horizontal line 8 perpendicular to the median plane of the soul.
  • the axes of the half-drums are inclined from 1 to 10 degrees, the diameter of the cutter being, for example, from 120 to 160 cm.
  • 2a half drums and 2b are provided on their periphery with conventional tools 4, 4a and 4b.
  • the tools 4 b which are located on the external periphery of the half-drums 2 a and 2 b , are offset towards the outside up to a vertical line 9, so as to be at their lower part substantially in line with the external edges of the upper part of the 2a half-drums.
  • the tools 4, 4a and 4b digging at the bottom of the machine a trench which corresponds to the maximum width of the drum, given the inclination of the axes 7, corresponds to that of the portion upper half-drums 2a and 2 b .
  • the tools 4, 4a and 4b are substantially aligned along a horizontal line so as to ensure a regular size of the trench.
  • the half-drums 2a and 2b can be rotated in any way.
  • They can for example be driven using two hydraulic motors powered by pipes arranged in the thickness of the core, motors which are coaxial with the half-drums.
  • a single motor with a horizontal axis, arranged symmetrically with respect to the core 3 and the axis of which can be connected to the inclined axes of the two half-drums by articulated devices of any type.
  • a motor comprising a hollow grooved axis which is connected by one or two grooved shafts to the two half-drums, the play existing at the level of the grooves making it possible to ensure angular catching up between the axes half-drums and that of the engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Crushing And Grinding (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
EP87401642A 1986-07-15 1987-07-10 Vorrichtung zum Ausheben von Gräben mit Fräsern Expired - Lifetime EP0253726B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401642T ATE55792T1 (de) 1986-07-15 1987-07-10 Vorrichtung zum ausheben von graeben mit fraesern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8610287 1986-07-15
FR8610287A FR2601708B1 (fr) 1986-07-15 1986-07-15 Engin pour creuser des tranchees dans le sol a l'aide de fraises

Publications (2)

Publication Number Publication Date
EP0253726A1 true EP0253726A1 (de) 1988-01-20
EP0253726B1 EP0253726B1 (de) 1990-08-22

Family

ID=9337436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401642A Expired - Lifetime EP0253726B1 (de) 1986-07-15 1987-07-10 Vorrichtung zum Ausheben von Gräben mit Fräsern

Country Status (8)

Country Link
EP (1) EP0253726B1 (de)
JP (1) JPS6322929A (de)
AT (1) ATE55792T1 (de)
CY (1) CY1698A (de)
DE (2) DE3764423D1 (de)
FR (1) FR2601708B1 (de)
HK (1) HK76593A (de)
SG (1) SG18793G (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834197A (en) * 1987-05-13 1989-05-30 Bauer Spezialtiefbau Gmbh Trench cutter
DE19754399A1 (de) * 1997-12-09 1999-06-17 Juergen Posch Vorrichtung zur Bearbeitung einer länglichen Vertiefung im Erdreich
EP1350893A1 (de) * 2002-04-05 2003-10-08 Spie Fondations Fräsrad und Schlitzwandfräse umfassend mindestens zwei Fräsräder
KR100497031B1 (ko) * 1996-08-28 2005-10-04 꽁빠니 뒤 솔 지면에서깊은도랑을굴착하는장치와상기장치에의해도랑을굴착하는방법
EP3556942A1 (de) * 2018-04-18 2019-10-23 BAUER Maschinen GmbH Schlitzwandfräse und verfahren zum erstellen eines frässchlitzes im boden
EP3688234A1 (de) * 2017-09-25 2020-08-05 Soletanche Freyssinet Bohrmaschine zur bildung eines nichtgeradlinigen grabens

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29808307U1 (de) 1998-05-11 1998-08-20 Möbius, Andreas, Prof. Dr.rer.nat., 41472 Neuss Vorrichtung zum gerichteten Einblasen von Luft, anderen Gasen oder Dämpfen unter gleichzeitiger Flüssigkeitsumwälzung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960392C (de) * 1954-02-27 1957-03-21 Erwin Baas Vorrichtung zur Herstellung neuer bzw. zum Reinigen bestehender Graeben
FR1429215A (fr) * 1965-04-09 1966-02-18 Socomec Sa Machine à creuser des tranchées, à lames tournantes s'enfonçant dans le terrain, particulièrement pour l'agriculture
US3510970A (en) * 1967-03-02 1970-05-12 Pavel Mikhailovich Mikhailov Excavator with inclined bucket wheels attached to a working unit which is horizontally maintained
DE1634262B1 (de) * 1966-04-09 1970-09-24 Bade & Co Gmbh Fraeswerkzeug zum Herstellen von Schlitzen fuer Schlitzwaende
DE2362425A1 (de) * 1972-12-14 1975-01-30 Hydrosol Vorrichtung zum herstellen von bohrungen im erdreich

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586931U (ja) * 1981-07-04 1983-01-17 株式会社ボッシュオートモーティブ　システム 大気圧補正装置付の内燃機関用遠心力調速機のアネコンレバ−

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960392C (de) * 1954-02-27 1957-03-21 Erwin Baas Vorrichtung zur Herstellung neuer bzw. zum Reinigen bestehender Graeben
FR1429215A (fr) * 1965-04-09 1966-02-18 Socomec Sa Machine à creuser des tranchées, à lames tournantes s'enfonçant dans le terrain, particulièrement pour l'agriculture
DE1634262B1 (de) * 1966-04-09 1970-09-24 Bade & Co Gmbh Fraeswerkzeug zum Herstellen von Schlitzen fuer Schlitzwaende
US3510970A (en) * 1967-03-02 1970-05-12 Pavel Mikhailovich Mikhailov Excavator with inclined bucket wheels attached to a working unit which is horizontally maintained
DE2362425A1 (de) * 1972-12-14 1975-01-30 Hydrosol Vorrichtung zum herstellen von bohrungen im erdreich

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834197A (en) * 1987-05-13 1989-05-30 Bauer Spezialtiefbau Gmbh Trench cutter
KR100497031B1 (ko) * 1996-08-28 2005-10-04 꽁빠니 뒤 솔 지면에서깊은도랑을굴착하는장치와상기장치에의해도랑을굴착하는방법
DE19754399A1 (de) * 1997-12-09 1999-06-17 Juergen Posch Vorrichtung zur Bearbeitung einer länglichen Vertiefung im Erdreich
US6085446A (en) * 1997-12-09 2000-07-11 Posch; Juergen Device for excavating an elongated depression in soil
DE19754399C2 (de) * 1997-12-09 2002-04-25 Juergen Posch Vorrichtung zur Bearbeitung einer länglichen Vertiefung im Erdreich
EP1350893A1 (de) * 2002-04-05 2003-10-08 Spie Fondations Fräsrad und Schlitzwandfräse umfassend mindestens zwei Fräsräder
EP3688234A1 (de) * 2017-09-25 2020-08-05 Soletanche Freyssinet Bohrmaschine zur bildung eines nichtgeradlinigen grabens
US11519153B2 (en) 2017-09-25 2022-12-06 Soletanche Freyssinet Boring machine for producing a non-rectilinear trench
EP3556942A1 (de) * 2018-04-18 2019-10-23 BAUER Maschinen GmbH Schlitzwandfräse und verfahren zum erstellen eines frässchlitzes im boden
US11286637B2 (en) 2018-04-18 2022-03-29 Bauer Maschinen Gmbh Trench cutter and method for producing a cut trench in the soil

Also Published As

Publication number Publication date
JPS6322929A (ja) 1988-01-30
FR2601708B1 (fr) 1989-10-27
CY1698A (en) 1994-01-14
DE253726T1 (de) 1988-09-01
ATE55792T1 (de) 1990-09-15
FR2601708A1 (fr) 1988-01-22
EP0253726B1 (de) 1990-08-22
DE3764423D1 (de) 1990-09-27
SG18793G (en) 1993-04-16
HK76593A (en) 1993-08-06

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