EP0249555A1 - Motorpumpe für Fräsgerät zum Ausheben von Gräben im Boden - Google Patents

Motorpumpe für Fräsgerät zum Ausheben von Gräben im Boden Download PDF

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Publication number
EP0249555A1
EP0249555A1 EP87401298A EP87401298A EP0249555A1 EP 0249555 A1 EP0249555 A1 EP 0249555A1 EP 87401298 A EP87401298 A EP 87401298A EP 87401298 A EP87401298 A EP 87401298A EP 0249555 A1 EP0249555 A1 EP 0249555A1
Authority
EP
European Patent Office
Prior art keywords
pump
motor
axis
ground
volute
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
EP87401298A
Other languages
English (en)
French (fr)
Other versions
EP0249555B1 (de
Inventor
Karl Bollinger
Philippe Chagnot
Alain Feugas
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
Publication of EP0249555A1 publication Critical patent/EP0249555A1/de
Application granted granted Critical
Publication of EP0249555B1 publication Critical patent/EP0249555B1/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
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • 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
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps

Definitions

  • the present invention relates to a motor pump for milling machine, intended to dig trenches in the ground, of the type in which two drums with horizontal parallel axes provided with tools are placed at the bottom of a chassis of generally rectangular section and are driven in rotation so as to disintegrate the ground to create a trench, the ground debris being raised using a pump which sucks them at the same time as part of the drilling mud with which the trench is kept filled .
  • the machines of this type must have a width at most equal to the width of the wall which is molded in the trench thus dug in the ground.
  • the only pumps which can be used in practice are centrifugal pumps whose speed of rotation is limited by the speed of rotation of the motors of drive (most often hydraulic), or can only increase their delivery head by increasing the diameter of their volute.
  • the present invention relates to a debris motor pump intended for milling machines for digging trenches in the ground which have the particularity of occupying a small footprint which does not unnecessarily increase the width of the trench and therefore the width of the wall molded in the latter, this motor pump nevertheless having sufficient power and delivery head to remove debris from the borehole.
  • the present invention relates to a motor pump of this type, characterized in that the axis of rotation of the pump is inclined about 45 ° relative to the vertical in a plane parallel to the axes of the cutters.
  • the motor-driven pump which also has the characteristic of being driven by a hydraulic motor, the cylinders of which are arranged in a barrel with a substantially vertical axis and the pistons of which act on a plate which is directly mounted on the pump rotor shaft.
  • the pump unit which has just been described is supported at its lower part by the cover of the volute through which the suction of the pump passes.
  • the pump set can be easily mounted on a chassis whose length and width are slightly less than the size of the pump set and which can thus be easily set up and removed for maintenance using a forklift for example.
  • FIGS. 1 and 2 There is diagrammatically shown in FIGS. 1 and 2 the lower part of a machine whose cutters 1 and 2 have simply been represented by their outline. These cutters which are constituted by drums provided with drilling tools on their periphery, rotate in the direction arrows of Figure 1 by bringing between them the debris of the ground which are created by drilling.
  • the cutters 1 and 2 are supported in the known manner by a frame 3 of which only the lower part is schematically shown in the drawing.
  • This frame may for example be 50 to 60 cm wide, 1.50 to 2.50 m long and a height which can reach 8 to 10 meters, without these dimensional indications being in any way limiting of the invention.
  • the drilling waste pump device consists of a centrifugal pump 4 whose axis 5 is inclined at about 45 ° relative to the vertical and which is located in a plane parallel to the axes 6 of the cutters 1 and 2.
  • the centrifugal pump 4 is driven by a hydraulic motor 7 which is secured on top of the pump 4.
  • the suction pipe 8 of the pump 4 is connected in a known manner to a suction head 9 which is located between the two cutters 1 and 2, slightly above the axis of the latter, at the place where the drilling debris is rejected by the cutters.
  • the volute of the pump 4 opens at 10 towards the outside in the direction of a vertical pipe 11 shown in broken lines in FIG. 1 which rises to the open air to discharge the drilling waste there.
  • the diameter of the volute can have a width substantially greater than the useful space which is available inside the body 3 of the machine.
  • FIG. 3 shows the centrifugal pump 4 whose axis 5 is inclined about 45 ° relative to the vertical, and which is surmounted by the hydraulic motor 7.
  • the motor pump is supported by its lower cover 12 which is provided with the central orifice corresponding to the suction pipe 8.
  • the chassis of the motor pump group consists of the plate 13 which is inclined at an angle complementary to that of axis 5 and which is provided with legs 14 and 15 to allow the attachment of the motor-driven pump to a horizontal support.
  • the upper face of the volute is closed by a housing 17 which, by means of its cover 18, maintains, by means of the bearings diagrammatically shown, the axis 19 of the rotor 20 of the centrifugal pump.
  • the hydraulic motor 7 is directly fixed to the cover 18 of the housing 17, while the plate 21 of the motor which is extended by a rod 22 is made integral with the axis 19 of the pump by means of a key 23 which secures in rotation the rod 22 of the plate and the axis 19 of the pump rotor.
  • the barrel containing the cylinders of the engine 7 is rotated at the same speed as the plate, thanks to the gears 25 and 26.
  • the axis 19 which is incorporated in the upper face of the pump, supports at its lower part the turbine 20 and at its upper part the plate 21 on which the pistons of the hydraulic motor act.
  • the inclination of the axis of the centrifugal pump according to the invention allows in practice for a given overall volume to increase by about 20% the diameter of the volute, that is to say about 40% of the pump head.
  • two transverse passages 27 are provided, arranged parallel to the axis 6 of the cutters and integrated into the frame of the pump unit which allow the engagement of the two forks of a carriage. elevator so as to ensure easy installation and extraction of the pump set for maintenance.

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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Soil Working Implements (AREA)
EP87401298A 1986-06-11 1987-06-10 Motorpumpe für Fräsgerät zum Ausheben von Gräben im Boden Expired - Lifetime EP0249555B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8608447A FR2600119B1 (fr) 1986-06-11 1986-06-11 Motopompe pour engin de fraisage destine a creuser des tranchees dans le sol
FR8608447 1986-06-11

Publications (2)

Publication Number Publication Date
EP0249555A1 true EP0249555A1 (de) 1987-12-16
EP0249555B1 EP0249555B1 (de) 1990-04-18

Family

ID=9336228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401298A Expired - Lifetime EP0249555B1 (de) 1986-06-11 1987-06-10 Motorpumpe für Fräsgerät zum Ausheben von Gräben im Boden

Country Status (8)

Country Link
EP (1) EP0249555B1 (de)
JP (1) JPH06102907B2 (de)
AT (1) ATE52118T1 (de)
CY (1) CY1707A (de)
DE (2) DE249555T1 (de)
FR (1) FR2600119B1 (de)
HK (1) HK76493A (de)
SG (1) SG59592G (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0369890A1 (de) * 1988-11-18 1990-05-23 SOLETANCHE Société Anonyme dite: Befestigungseinrichtung der Betriebseinheiten einer Fräsvorrichtung zum Ausgraben von Erdgräben
FR2731024A1 (fr) * 1995-02-28 1996-08-30 Sol Comp Du Appareil destine a creuser des tranchees dans le sol
FR2883893A1 (fr) * 2005-03-31 2006-10-06 Cie Du Sol Soc Civ Ile Bouche d'aspiration pour machine d'excavation de tranchee
EP1978160A1 (de) 2007-04-05 2008-10-08 SOILMEC S.p.A. Pumpe für Wassermühle
EP3556942A1 (de) * 2018-04-18 2019-10-23 BAUER Maschinen GmbH Schlitzwandfräse und verfahren zum erstellen eines frässchlitzes im boden
EP4086390A1 (de) * 2021-05-06 2022-11-09 BAUER Maschinen GmbH Schlitzwandfräse und verfahren zum fräsen eines frässchlitzes im boden

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926023A1 (de) * 1988-09-06 1990-03-15 Schott Glaswerke Cvd-beschichtungsverfahren zur herstellung von schichten und vorrichtung zur durchfuehrung des verfahrens
JP2532401Y2 (ja) * 1991-04-16 1997-04-16 ソニー株式会社 バイアスｅｃｒプラズマｃｖｄ装置
JP4165437B2 (ja) 2004-04-16 2008-10-15 トヨタ自動車株式会社 パワートレーン

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE692832C (de) * 1934-12-23 1940-06-27 Luebecker Maschb Ges Schwimmsaugbagger
FR1037614A (fr) * 1951-03-03 1953-09-22 Procédé d'utilisation de pompes immergées en suceuses comportant une nouvelle application de cette pompe au dragage en général, et notamment au dévasement de barrages
GB788435A (en) * 1956-07-16 1958-01-02 Baggermij Bos & Kalis Nv A suction head for a cuttter dredger
US2991568A (en) * 1959-11-19 1961-07-11 Smith Harold Kellogg Digger wheel, pump and motor unit for dredges
GB1207355A (en) * 1966-11-04 1970-09-30 Conrad & Hijsch Nv Improvements in cutting wheels for suction dredges
FR2501305A1 (fr) * 1981-03-05 1982-09-10 Toyo Denki Kogyosho Co Ltd Pompe a sable fonctionnant sous l'eau

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE692832C (de) * 1934-12-23 1940-06-27 Luebecker Maschb Ges Schwimmsaugbagger
FR1037614A (fr) * 1951-03-03 1953-09-22 Procédé d'utilisation de pompes immergées en suceuses comportant une nouvelle application de cette pompe au dragage en général, et notamment au dévasement de barrages
GB788435A (en) * 1956-07-16 1958-01-02 Baggermij Bos & Kalis Nv A suction head for a cuttter dredger
US2991568A (en) * 1959-11-19 1961-07-11 Smith Harold Kellogg Digger wheel, pump and motor unit for dredges
GB1207355A (en) * 1966-11-04 1970-09-30 Conrad & Hijsch Nv Improvements in cutting wheels for suction dredges
FR2501305A1 (fr) * 1981-03-05 1982-09-10 Toyo Denki Kogyosho Co Ltd Pompe a sable fonctionnant sous l'eau

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0369890A1 (de) * 1988-11-18 1990-05-23 SOLETANCHE Société Anonyme dite: Befestigungseinrichtung der Betriebseinheiten einer Fräsvorrichtung zum Ausgraben von Erdgräben
FR2639419A1 (fr) * 1988-11-18 1990-05-25 Soletanche Dispositif de fixation des blocs-moteurs d'un appareil de fraisage pour creuser des tranchees dans le sol
US4989824A (en) * 1988-11-18 1991-02-05 Societe Anonyme Dite - Soletanche Motor block fastening device for a trenching machine
FR2731024A1 (fr) * 1995-02-28 1996-08-30 Sol Comp Du Appareil destine a creuser des tranchees dans le sol
EP0730064A1 (de) * 1995-02-28 1996-09-04 Compagnie Du Sol Baggergerät zum Graben von Tiefgräben
FR2883893A1 (fr) * 2005-03-31 2006-10-06 Cie Du Sol Soc Civ Ile Bouche d'aspiration pour machine d'excavation de tranchee
EP1707687A3 (de) * 2005-03-31 2007-11-07 Compagnie du Sol Saugmund für eine Maschine zur Herstellung von Schlitzwänden
EP1978160A1 (de) 2007-04-05 2008-10-08 SOILMEC S.p.A. Pumpe für Wassermühle
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
EP4086390A1 (de) * 2021-05-06 2022-11-09 BAUER Maschinen GmbH Schlitzwandfräse und verfahren zum fräsen eines frässchlitzes im boden
WO2022233672A1 (de) * 2021-05-06 2022-11-10 Bauer Maschinen Gmbh Schlitzwandfräse und verfahren zum fräsen eines frässchlitzes im boden

Also Published As

Publication number Publication date
CY1707A (en) 1994-01-14
ATE52118T1 (de) 1990-05-15
EP0249555B1 (de) 1990-04-18
HK76493A (en) 1993-08-06
FR2600119B1 (fr) 1988-08-26
JPS6367332A (ja) 1988-03-26
DE3762358D1 (de) 1990-05-23
JPH06102907B2 (ja) 1994-12-14
FR2600119A1 (fr) 1987-12-18
DE249555T1 (de) 1988-06-09
SG59592G (en) 1993-05-21

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