EP0533559B1 - Schalengreiferbagger - Google Patents

Schalengreiferbagger Download PDF

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Publication number
EP0533559B1
EP0533559B1 EP92402531A EP92402531A EP0533559B1 EP 0533559 B1 EP0533559 B1 EP 0533559B1 EP 92402531 A EP92402531 A EP 92402531A EP 92402531 A EP92402531 A EP 92402531A EP 0533559 B1 EP0533559 B1 EP 0533559B1
Authority
EP
European Patent Office
Prior art keywords
guide piece
lifting machine
offset
bucket
fact
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
EP92402531A
Other languages
English (en)
French (fr)
Other versions
EP0533559A1 (de
Inventor
Joel Cano
Philippe Chagnot
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.)
Compagnie du Sol SARL
Original Assignee
Compagnie du Sol SARL
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 Compagnie du Sol SARL filed Critical Compagnie du Sol SARL
Publication of EP0533559A1 publication Critical patent/EP0533559A1/de
Application granted granted Critical
Publication of EP0533559B1 publication Critical patent/EP0533559B1/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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/14—Booms only for booms with cable suspension arrangements; Cable suspensions
    • 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
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets

Definitions

  • the present invention relates to a clamshell excavation device making it possible to execute, under good conditions, trenches of relatively great depth in the immediate vicinity of pre-existing fixed obstacles.
  • square rod is designated according to the usual terminology in this technique a rod which can slide longitudinally in the guide piece, the sections of the rod and of the guide piece being such that the rod and the guide part are integral in rotation about their longitudinal axis.
  • the subject of the present invention is an apparatus of this type which avoids the aforementioned drawbacks by allowing excavations to be made in the immediate vicinity of obstacles and this without disturbing the general good functioning of the apparatus.
  • the subject of the present invention is a clamshell excavation device making it possible to execute trenches in the immediate vicinity of pre-existing obstacles, of the type in which the grab is provided at its upper part with a square rod which engages in a guide piece of corresponding shape suspended from the upper part of a lifting device while being able to pivot about a vertical axis, reels intended to receive the hydraulic hoses for controlling the bucket being secured to the guide piece, device characterized in that the reels are offset laterally in the direction of the lifting device and that the upper part of the guide piece is supported by the lifting device at a point offset relative to the axis of the bucket and of the guide piece, so as to compensate for the tilting torque resulting from the offset of the reels and to maintain the axis of the guide piece in a sensitive position slightly vertical.
  • the apparatus according to the invention avoids the drawback that, when the reels are moved to the side of the guide piece opposite to the obstacle along which it is desired to excavate, the bucket is tipped over and of its guide piece towards said obstacle.
  • Such a tilting has the drawback of making it more difficult to position the bucket. Furthermore, it makes it more random, and in any case more difficult, the engagement of the end of the square rod integral with the bucket in the guide part of corresponding shape, due to the fact that the bucket being suspended by a cable, the latter has a vertical position while the guide piece is inclined due to the tilting torque communicated to it by the reels. As a result, the upper end of the square rod Difficult to engage in the lower hole of the guide piece, causing unwanted impact and premature wear of the bucket lifting cable.
  • the tilting torque which tends to cause the guide piece to take an inclined position is automatically compensated for by the fact that the guide piece is suspended at a point offset from its vertical axis, this which allows the creation of a reverse tilting torque to the previous one which ensures the maintenance of the guide piece in a vertical position and which eliminates all difficulties when the upper end of the square rod which is integral with the bucket must engage in the guide piece.
  • the reels are mounted on the guide piece so as to allow their positioning on one side or the other of the sides of the bucket.
  • the compensation of the tilting torque caused by the offset of the reels is in both cases compensated by the fact that the point of suspension of the upper part of the guide piece is located above its vertical pivot axis.
  • the tilting torque caused by the point of attachment of the guide piece to the lifting device is such that the guide piece tends to tilt towards the lifting device, this tendency being offset by the offset of the reels towards the lifting device.
  • the mast of the lifting device which supports the guide part is connected by a horizontal hinge pin to the upper part of the vertical pivoting device which is arranged in the upper part of the guide piece and a damper, preferably hydraulic, is articulated on these two pieces so as to brake the pendulum movements around said articulation axis horizontal, which significantly improves the positioning control of the bucket and facilitates the realization of excavations in the immediate vicinity of pre-existing obstacles.
  • a part between the lifting gear and the upper part of the guide part is planned to place a part between the lifting gear and the upper part of the guide part and to create a second horizontal articulation axis and also to brake the pendulum movements around this axle using a second damper, preferably hydraulic.
  • This variant facilitates the folding of the guide piece of the square rod against the mast of the lifting machine, in particular when moving from one site to another.
  • FIG. 1 Schematically shown in Figure 1 the lifting device 1 mounted on tracks 2 which, in the usual way, can pivot about a vertical axis.
  • the mast 3 of this machine can be tilted down or up by conventional means. It supports at its upper part a guide piece 4 capable of receiving inside it the square rod, not shown, which is integral with the upper part of the excavating bucket 5.
  • the guide piece 4 can pivot around a vertical axis with respect to its upper part 6 to which it is joined by a hydraulic rotating joint so as to allow the passage of the hydraulic fluids which are necessary for controlling the bucket, whatever that the angular position of the bucket relative to the lifting machine 1.
  • FIG. 1 also shows the reels 7 which make it possible to store the hydraulic hoses 8, said hoses taking place as the bucket 5 sinks into the excavated trench 9.
  • the upper part 6 of the guide part 4 is supported by the upper end of the mast 3 by means of a part 11 articulated at 12 on the part 6 and at 13 on the mast 3.
  • the size of the reels is located only on one side of the guide piece 4.
  • the reels can be tilted using any device, for example by being mounted on pivoting levers controlled by hydraulic cylinders.
  • the reels 7 are tilted in the direction of the arrow F1 so that the reels do not protrude to the left beyond the size of the guide piece 4.
  • the upper part 6 of the guide piece 4 is suspended along the axis 12 which, as can be clearly seen in Figure 2, is offset to the right relative to the vertical axis 10 of the guide piece 4.
  • the axis 10 of the guide piece remains in a vertical position because the overturning torque which tilts the guide piece to the left and which results from the offset of the reels in the direction of the arrow F1 is exactly compensated by the tilting torque to the right which results from the fact that the hinge pin 12 of the upper part 6 of the guide piece 4 on the mast 3 is offset to the right with respect to the vertical axis 10 and consequently creates an overturning torque of the same value to the right.
  • the damper 14 is articulated at 16 on the end of the mast 3 and at 17 on the intermediate piece 11 while the damper 15 is articulated at 18 on the intermediate piece 11 and at 19 on the upper part 6 of the piece of guidance 4.
  • the hydraulic dampers 14 and 15 are pistons, the two faces of which are connected by a pipe containing a hydraulic fluid, the displacement of which is limited by an orifice of appropriate dimensions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Shovels (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Confectionery (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Toys (AREA)

Claims (6)

  1. Aushubvorrichtung mit Erdgreifer zum Ausführen von Gräben in unmittelbarer Nachbarschaft bestehender Hindernisse, wobei der Greifer (5) im oberen Teil mit einer rechteckigen Stange ausgestattet ist, die in einem Führungsstück (4) mit dem entsprechend rechteckigen Profil läuft, und wobei dies am oberen Ende eines Hebezeugs (1) befestigt und um seine senkrechte Achse drehbar ist, wobei Aufrollvorrichtungen für die Schläuche der Hydrauliksteuerung des Greifers (5) am Führungsstuck befestigt sind; dadurch gekennzeichnet, daß die Aufrollvorrichtungen (7) seitlich (F1) in Richtung des Hebezeugs (1) versetzt werden können und daß der obere Teil (6) des Führungsstücks (4) an einem Punkt (12) des Hebezeugs (1) angebracht ist, der im Vergleich zur senkrechten Achse (10) des Führungsstücks (4) seitlich versetzt ist derart, daß auf diese Weise das Kippmoment, das sich durch die seitlich versetzten Aufrollvorrichtungen ergibt, ausgeglichen und die Achse (10) des Führungsstücks im wesentlichen senkrecht gehalten wird.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Führungsstück (4) in beiden Richtungen um mindestens 180° um die Achse (10) und in Relation zum Hebezeug (1) gedreht werden kann, wobei der obere Teil (6) des Führungsstücks über eine waagerechte Drehachse (12) am Hebezeug (1) angelenkt ist, die um die Distanz (D) seitlich gegen die senkrechte Achse (10) des Führungsstücks (4) verschoben ist.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Führungsstück (4) im oberen Teil über eine Hydraulik-Drehverbindung mit dem oberen Teil verbunden ist.
  4. Vorrichtung nach einem der Ansprüche 2 und 3, dadurch gekennzeichnet, daß ein Stoßdämpfer, bevorzugt ein Hydraulikdämpfer, die Pendelbewegungen des Führungsstücks (4) um die waagerechte Drehachse und in Relation zum Hebezeug (1) bremst.
  5. Vorrichtung nach einem beliebigen der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß es zwischen Hebezeug (1) und den oberen Teil (6) des Führungsstücks (4) ein Zwischenstück (11) sowie eine zweite waagerechte Drehachse (13) zwischen dem oberen Teil (6) des Führungsstücks und dem Hebezeug (1) gibt.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß ein zweiter Stoßdämpfer (14) die Pendelbewegungen um die besagte zweite Drehachse bremst.
EP92402531A 1991-09-16 1992-09-16 Schalengreiferbagger Expired - Lifetime EP0533559B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9111372 1991-09-16
FR9111372A FR2681351B1 (fr) 1991-09-16 1991-09-16 Appareil d'excavation a benne preneuse.

Publications (2)

Publication Number Publication Date
EP0533559A1 EP0533559A1 (de) 1993-03-24
EP0533559B1 true EP0533559B1 (de) 1995-08-23

Family

ID=9416963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402531A Expired - Lifetime EP0533559B1 (de) 1991-09-16 1992-09-16 Schalengreiferbagger

Country Status (7)

Country Link
EP (1) EP0533559B1 (de)
AT (1) ATE126853T1 (de)
DE (2) DE69204245T2 (de)
DK (1) DK0533559T3 (de)
ES (1) ES2039343T3 (de)
FR (1) FR2681351B1 (de)
GR (1) GR930300067T1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9510647D0 (en) * 1995-05-25 1995-07-19 Matthews Robert Hose connection for boom arrangements
FR2755709B1 (fr) * 1996-11-14 1999-02-05 Sol Comp Du Dispositif de forage comportant un engin de forage
IT1293888B1 (it) * 1997-04-17 1999-03-11 Soilmec Spa Attrezzatura di scavo a benna per la realizzione di diaframmi
ATE437271T1 (de) 2007-01-26 2009-08-15 Bauer Maschinen Gmbh Bodenabtragsvorrichtung
FR2982284B1 (fr) 2011-11-04 2013-12-13 Soletanche Freyssinet Machine d'excavation comprenant un tube de guidage permettant la rotation du chassis

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1099134A (en) * 1965-06-01 1968-01-17 Soil Mechanics Soletanche Ltd Grab excavator and method of constructing a diaphragm wall using such an excavator
DE2356760C3 (de) * 1973-11-14 1978-05-03 O & K Orenstein & Koppel Ag, 1000 Berlin Bremsvorrichtung zur Dämpfung von Pendelbewegungen für einen Baggergreifer
DE2448881A1 (de) * 1974-10-14 1976-04-22 Casagrande & C S P A Flli Schlitzwandgeraet
IT1125326B (it) * 1979-02-21 1986-05-14 Casagrande & C Spa Perfezionamenti alle colonne telescopiche per fondazioni e colonne telesopiche per fondazioni cosi' perfezionate

Also Published As

Publication number Publication date
ES2039343T3 (es) 1995-12-16
ATE126853T1 (de) 1995-09-15
FR2681351B1 (fr) 1993-11-12
DE533559T1 (de) 1993-09-02
FR2681351A1 (fr) 1993-03-19
ES2039343T1 (es) 1993-10-01
DE69204245D1 (de) 1995-09-28
EP0533559A1 (de) 1993-03-24
DK0533559T3 (da) 1995-12-27
GR930300067T1 (en) 1993-07-30
DE69204245T2 (de) 1996-03-21

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