EP0294843B1 - Excavateur - Google Patents

Excavateur Download PDF

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Publication number
EP0294843B1
EP0294843B1 EP88109305A EP88109305A EP0294843B1 EP 0294843 B1 EP0294843 B1 EP 0294843B1 EP 88109305 A EP88109305 A EP 88109305A EP 88109305 A EP88109305 A EP 88109305A EP 0294843 B1 EP0294843 B1 EP 0294843B1
Authority
EP
European Patent Office
Prior art keywords
boom
extension arm
slewing
excavator
main boom
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
EP88109305A
Other languages
German (de)
English (en)
Other versions
EP0294843A1 (fr
Inventor
Erich Sennebogen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88109305T priority Critical patent/ATE66986T1/de
Publication of EP0294843A1 publication Critical patent/EP0294843A1/fr
Application granted granted Critical
Publication of EP0294843B1 publication Critical patent/EP0294843B1/fr
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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/301—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/307—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom the boom and the dipper-arm being connected so as to permit relative movement in more than one plane
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes

Definitions

  • the invention relates to an excavator according to the preamble of claim 1.
  • An excavator according to the preamble of claim 1 is known from US-A-4,077,140.
  • the advance boom is guided on the basic boom in a pivotable manner and, in addition, a bearing is provided, by means of which the preliminary boom can be pivoted relative to the basic boom about a substantially vertical axis.
  • the substantially vertical pivot axis between the outrigger and the basic boom is designed as a frame part which is guided in the horizontal axis on the basic boom side.
  • the excavator according to the invention is characterized in that a hydraulic drive for the outrigger is supported at a position on the forward side of the swivel joint between the base and advance arm and the horizontal swivel axis of the outrigger is arranged at the forward side on the position of the swivel joint, with a control member for the outrigger on the Control function of the hydraulic drive is switchable for the forward boom and the pivot axis of the swivel joint is vertical in a working position of the basic boom.
  • the horizontally extending pivot axis for the pitching movement of the jib is arranged relative to the basic boom at the position of the vertical swivel joint on the forward arm side and further in that in a working position of the basic boom that vertical swivel joint has a vertically running swivel axis, with the advance boom kinetics consisting of advance boom and boom arm with the excavator bucket attached to it, completely unhindered excavator operation is possible even when the basic boom is locked.
  • a control element for the basic boom can be switched over to the control function of the hydraulic drive for the forward boom, an excavation work can be carried out with the forward boom kinetics which corresponds to that which can be carried out with the active forward boom.
  • the forward boom takes over the corresponding lifting functions for the excavator bucket via its hydraulic drive. If, in a working position of the basic boom, the swivel joint for the buckling movement between the forward boom and the basic boom runs vertically, an exact excavation or digging can also be carried out outside the lane of the excavator according to the invention with the blocked basic boom using the forward boom kinetics, without the excavator bucket making circular evasive movements, because the swivel joint runs vertically and therefore trenches with exactly parallel and vertical walls can be excavated.
  • the feeder is manually rotatable in both directions about the swivel joint and lockable in any position.
  • the flexibility of the excavator according to the invention increases considerably since the position of the basic boom can also be changed and a vertical position of the swivel axis can nevertheless be achieved.
  • an excavator 2 has a chassis 4 and a superstructure 6 consisting of a driver's cab 8 and a motor housing 10 in a known manner.
  • a basic boom 12 which can be swiveled up and down and which has a swivel joint 14 at its free end.
  • the swivel joint 14 has a swivel axis 16 which, in a defined working position of the basic boom 12 according to FIG. 1, runs perpendicular to the standing surface of the excavator 2.
  • the swivel joint 14 consists of a frame part 18, which is provided on the side of the basic boom 12, and of a frame part 20, which is rotatably connected to the frame part 18, and on which a forward extension arm 24 is pivotally guided via a swivel joint 22.
  • a cantilever arm 26 is pivotally mounted, which can be moved via a hydraulic drive 28 and carries a support lever 30 at its free end for actuating an excavator bucket 32.
  • FIG. 1 The vertical range of movement of the excavator bucket 32 with the pivot axis 16 standing vertically is shown schematically in FIG. 1.
  • a hydraulic device 34 is used to drive the advance arm 24, which is supported at one end by the advance arm 24 and at the other end by the frame part 20.
  • the excavator 2 In a neutral position of the swivel joint 14, ie in a position in which the longitudinal axes of the basic boom 12 and the forward boom 24 are aligned, the excavator 2 can be operated as a normal backhoe, the basic boom 12 not being shown in the drawing Hydraulic drives, the advance arm 24 are operated via the hydraulic drive 34 and the extension arm 26 via the hydraulic drive 28.
  • the swivel joint 14 is brought from its neutral position into a pivoted position, as shown in FIG. 2.
  • the forward boom 24 is pivoted relative to the basic boom 12 about the swivel joint 14.
  • the pivoting of the advance boom 24 relative to the basic boom 12 can be carried out either by hand or by hydraulic drives 36 shown in FIG. 2.
  • the base boom 12 is brought into a position according to FIG. 1, in which the pivot axis 16 of the pivot joint 14 is perpendicular to the standing surface of the excavator 2.
  • the excavator 2 according to the invention is not only for implementation normal dredging and vertical dredging suitable in parallel to its lane, since a large number of working positions can be achieved due to the relative adjustability of the forward boom 24 to the basic boom 12.
  • forward boom 24 can assume any other intermediate position apart from the relative position to the basic boom 12 according to FIG. 2.
  • the swivel joint 14 should be blocked when the desired relative position of the advance boom 24 to the basic boom 12 has been reached.
  • control element such as. B. a control lever for the basic boom on the hydraulic drive 34 for the advance 24 to switch.
  • control and movement of the forward boom, which then carries out the lifting work, is thus made easier when the basic boom is blocked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Operation Control Of Excavators (AREA)
  • Jib Cranes (AREA)

Claims (4)

  1. Excavateur (2) comprenant une flèche de base (12), une avant-flèche à actionnement hydraulique (24) qui est montée sur celle-ci en étant mobile en pivotement autour d'un axe horizontal (22) et qui porte à son extrémité libre un bras de flèche à actionnement hydraulique (26) muni d'une pelle d'excavateur (32), une articulation de pivotement (14) pourvue d'un axe de pivotement (16) étant disposée entre la flèche de base (12) et l'avant-flèche (24), caractérisé par le fait qu'un entraînement hydraulique (34) destiné à l'avant-flèche (24) s'appuie en un endroit (20) de l'articulation de pivotement (14) qui est situé du côté de l'avant-flèche et que l'axe de pivotement horizontal (22) de l'avant-flèche (24) est disposé à l'endroit (20) de l'articulation de pivotement (14) qui est situé du côté de l'avant-flèche, cependant que l'on peut faire passer un organe de commande destiné à la flèche de base (12) à la fonction de commande de l'entraînement hydraulique (34) destiné à l'avant-flèche (24), et que l'axe de pivotement (16) de l'articulation de pivotement (14) est perpendiculaire à la surface d'appui de l'excavateur dans une position de travail de la flèche de base (12).
  2. Excavateur selon la revendication 1, caractérisé par le fait que l'on peut faire tourner l'avant-flèche (24) manuellement dans les deux directions autour de l'articulation de pivotement (14) et la verrouiller dans chacune de ses positions relatives par rapport à la flèche de base (12) qui peuvent être atteintes.
  3. Excavateur selon la revendication 1, caractérisé par le fait que l'on peut faire tourner l'avant-flèche (24) dans les deux directions autour de l'articulation de pivotement (14) au moyen d'un mécanisme, l'entraînement mécanique (36) pouvant être bloqué dans chacune des positions relatives de l'avant-flèche (24) par rapport à la flèche de base (12) qui peuvent être atteintes.
  4. Excavateur selon l'une des revendications 1 à 3, caractérisé par le fait que l'alignement vertical de l'axe de pivotement (16) de l'articulation de pivotement (14) par rapport à la flèche de base (12) est réglable.
EP88109305A 1987-06-10 1988-06-10 Excavateur Expired - Lifetime EP0294843B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88109305T ATE66986T1 (de) 1987-06-10 1988-06-10 Bagger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3719341 1987-06-10
DE19873719341 DE3719341A1 (de) 1987-06-10 1987-06-10 Bagger

Publications (2)

Publication Number Publication Date
EP0294843A1 EP0294843A1 (fr) 1988-12-14
EP0294843B1 true EP0294843B1 (fr) 1991-09-04

Family

ID=6329413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88109305A Expired - Lifetime EP0294843B1 (fr) 1987-06-10 1988-06-10 Excavateur

Country Status (3)

Country Link
EP (1) EP0294843B1 (fr)
AT (1) ATE66986T1 (fr)
DE (2) DE3719341A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1433549A (fr) * 1965-02-18 1966-04-01 Poclain Sa Mât complémentaire pour pelle hydraulique
DE2154724A1 (de) * 1971-11-04 1973-05-10 Orenstein & Koppel Ag Ausleger fuer horizontale und vertikale verschwenkung des arbeitswerkzeuges
BE792717A (fr) * 1971-12-21 1973-03-30 Rheinstahl Ag Hanomag Baumasch Pelleteuse, en particulier pelleteuse hydraulique
IT1057824B (it) * 1976-03-31 1982-03-30 Simit Spa Attrezzatura per lo scavo laterale mediante escavatori idraulici

Also Published As

Publication number Publication date
EP0294843A1 (fr) 1988-12-14
DE3864591D1 (de) 1991-10-10
ATE66986T1 (de) 1991-09-15
DE3719341A1 (de) 1988-12-29

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