EP0226660B1 - Dispositif pour une roue excavatrice - Google Patents

Dispositif pour une roue excavatrice Download PDF

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Publication number
EP0226660B1
EP0226660B1 EP19850116539 EP85116539A EP0226660B1 EP 0226660 B1 EP0226660 B1 EP 0226660B1 EP 19850116539 EP19850116539 EP 19850116539 EP 85116539 A EP85116539 A EP 85116539A EP 0226660 B1 EP0226660 B1 EP 0226660B1
Authority
EP
European Patent Office
Prior art keywords
suction
cutting
wheel
bucket wheel
suction chamber
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
Application number
EP19850116539
Other languages
German (de)
English (en)
Other versions
EP0226660A1 (fr
Inventor
Siegfried Dipl.-Ing. Steinkühler
Ulrich Dipl.-Ing. Wäntig
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.)
CNH Industrial Baumaschinen GmbH
Original Assignee
O&K Orenstein and Koppel GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8193974&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0226660(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by O&K Orenstein and Koppel GmbH filed Critical O&K Orenstein and Koppel GmbH
Priority to EP19850116539 priority Critical patent/EP0226660B1/fr
Publication of EP0226660A1 publication Critical patent/EP0226660A1/fr
Application granted granted Critical
Publication of EP0226660B1 publication Critical patent/EP0226660B1/fr
Expired 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
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • E02F3/9237—Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe

Definitions

  • the invention relates to a bucket wheel cutting device for suction dredgers, the bucket wheel being provided with cutting brackets and the suction pipe being connected to a suction chamber arranged inside the cutting device, which is provided with a suction opening in the suction area.
  • DE-PS 3015 452 shows and describes a bucket wheel for a floating suction dredger according to the preamble of claim 1, which is rotatably mounted about a horizontal axis and which is provided on the outer circumference of its bucket wheel body at regular intervals from one another with excavator buckets.
  • Each excavator bucket has a U-shape in the radial cross section of the bucket wheel.
  • the free blade ends are connected to the blade wheel body and have an inlet opening pointing in the direction of rotation of the blade wheel. This is larger than its outlet opening.
  • the bucket wheel On the outer circumference, the bucket wheel has an opening that extends over its entire length between the U-legs of the excavator buckets, to which the suction mouth contacts a suction line that extends through a fixed side wall of the bucket wheel into the interior of the bucket wheel.
  • the suction mouth is provided on its upper edge with an extension which extends at an angle against the direction of rotation of the bucket wheel through the opening and the outlet opening of the excavator shovel into the same.
  • the outer end of the extension lies at the level of the axis of rotation of the paddle wheel.
  • the excavator blades can be substantially rectangular or trapezoidal in radial cross-section and also trapezoidal in tangential cross-section.
  • DE-OS 2907485 describes and shows a paddle wheel with a flat, cylindrical body that has at least one partially open side surface. Openings are provided in the cylindrical peripheral plane which open into blades, which are fastened to the blade wheel and are provided with cutting teeth.
  • the shaft of the bucket wheel is supported by bearings that are located at the forked outer end of the excavator ladder of the excavator boom. The shaft can be driven via a gearwheel using a hydraulic motor.
  • a box-shaped suction device is provided, which has an open side in the form of a circular arc as a suction opening and runs close to the inner surface of the cylindrical peripheral plane of the main part of the impeller body.
  • the box-shaped suction device is attached by means of a flange screw connection to a fastening device which is held by the shaft of the paddle wheel.
  • An adjusting device which consists of a piston and cylinder, is rotatably connected at one end to the excavator ladder and at the other end to the fastening device, so that the box-shaped suction device can be pivoted with the adjusting device.
  • a manifold On one side of the suction device there is an opening into which a manifold opens, the other end of which is connected to a flexible tube, which in turn is connected to a suction tube by means of a bend.
  • US Pat. No. 4,058,914 describes a suction excavator with a special type of suction head attached to the suction pipe.
  • the suction head consists of a T-piece, the middle part of which is attached to the suction pipe, while the two side pieces are provided with mounting flanges.
  • a cutting device which consists of a tubular part in which a drive motor is inserted, is arranged on each fastening flange.
  • Each drive motor is provided with a cutting wheel, which consists of knives which protrude outwards and are arranged in a circle, the planes of the knives being inclined conically.
  • the cutting device consists of a helical component, from which the cutting knives protrude outwards.
  • a conduit flap is pivotally mounted about an axis that runs perpendicular to the connector of the T-shaped distributor. This flap opens at its front end in a slide which closes the connection opening of one suction pipe in one position and the suction opening of the other suction pipe in the other position. The flap can be adjusted from the ship using an adjustment device.
  • the invention has for its object to provide a bucket wheel cutting device of the type mentioned, in which it is ensured that the broach cut by the cutting brackets is removed with a high degree of filling.
  • the invention solves this problem by the features of the main claim. Further preferred embodiments are the subject of the dependent claims.
  • the solution according to the invention retains the advantages of constant and unambiguous cutting conditions which are characteristic of bucket wheel excavator operation, and a constant removal of the broaching material can be ensured with good efficiency.
  • the material released from the cutting edges is sucked off directly through the cutting edge openings.
  • the paddle wheel cutting device has two cutting wheels 1 a and 1 b, which are jointly operated by a hydraulic motor 2 integrated into the support structure of the intake manifold boom in addition to gear 3 are driven hydraulically.
  • the suction pipe 4 ends in two suction chambers 5a and 5b provided within the centrally arranged wheel carrier, which are separated by a central wall 6.
  • An adjusting flap 7 is provided which, depending on the pivoting direction of the suction pipe boom, only connects one of the suction chambers 5a or 5b to the suction pipe 4, which is assigned to the conveying cutting wheel 1a or 1b, during the excavation work.
  • each of the suction chambers is delimited by the mechanical support structure and a scraper.
  • Cutting brackets 8a and Bb each equipped with cutting knives 9a and 9b, open lateral cutting openings for the reception of the cleared goods in the suction chambers.
  • the figure also shows that the suction chambers 5a and 5b are predominantly provided in the lower region of the cutting wheels 1a and 1b, that is to say directly behind the floor to be cut.

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)

Claims (3)

1. Dispositif de coupe de roue-pelle pour dragues suceuses, la roue-pelle étant munie d'arceaux tranchants et le tube d'aspiration étant relié à une chambre d'aspiration disposée à l'intérieur du dispositif de coupe et munie d'une ouverture d'aspiration dans la région d'aspiration, caractérisé en ce que la roue tranchante est constituée de deux roues tranchantes (1 a, 1 b) situées coaxialement l'une à côté de l'autre, assemblées solidairement entre elles et entraînées par un moteur hydraulique commun (2), en ce que la chambre d'aspiration est subdivisée en deux chambres d'aspiration (5a, 5b) séparées l'une de l'autre par une paroi médiane (6), une chambre étant située dans la région d'une des roues tranchantes et l'autre chambre dans la région de l'autre roue tranchante, et en ce que chaque chambre d'aspiration (5a, 5b) est reliée, par l'intermédiaire d'une ouverture obturable par un clapet de réglage (7), au tube d'aspiration (4) de telle sorte que soit l'une, soit l'autre des chambres d'aspiration (5a, 5b) soit raccordée au tube d'aspiration.
2. Dispositif selon la revendication 1, caractérisée en ce que les chambres d'aspiration (5a, 5b) sont prévues principalement dans la région inférieure des roues tranchantes (1 a, 1 b).
3. Dispositif selon la revendication 1, caractérisé en ce que les roues tranchantes (1a, 1b) présentent des ouvertures de coupe latérales.
EP19850116539 1985-12-24 1985-12-24 Dispositif pour une roue excavatrice Expired EP0226660B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19850116539 EP0226660B1 (fr) 1985-12-24 1985-12-24 Dispositif pour une roue excavatrice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19850116539 EP0226660B1 (fr) 1985-12-24 1985-12-24 Dispositif pour une roue excavatrice

Publications (2)

Publication Number Publication Date
EP0226660A1 EP0226660A1 (fr) 1987-07-01
EP0226660B1 true EP0226660B1 (fr) 1989-07-12

Family

ID=8193974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850116539 Expired EP0226660B1 (fr) 1985-12-24 1985-12-24 Dispositif pour une roue excavatrice

Country Status (1)

Country Link
EP (1) EP0226660B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992007146A1 (fr) * 1990-10-16 1992-04-30 Coal Recoveries Pty., Ltd. Ensemble de roue coupante
BE1018348A3 (nl) 2008-11-12 2010-09-07 Dredging Int Snijkop voor het baggeren van grond en werkwijze voor het baggeren met behulp van deze snijknop.
RS63212B1 (sr) 2012-11-02 2022-06-30 Bioverativ Usa Inc Antikomplementna c1s antitela i njihove primene
US20150008719A1 (en) * 2013-07-02 2015-01-08 Galen B. Merrell Prospecting Immersable for Gold or P.I.G.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124832A (fr) * 1954-05-28 1956-10-18 Mineraal Technologisch Inst Perfectionnement aux dispositifs de découpage de terrains, en particulier, pour drague aspiratrice
US4058914A (en) * 1975-12-15 1977-11-22 Kiss Sandor G Alternate flow suction dredge

Also Published As

Publication number Publication date
EP0226660A1 (fr) 1987-07-01

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