EP0061790B1 - Verladebrücke mit Greifer - Google Patents

Verladebrücke mit Greifer Download PDF

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Publication number
EP0061790B1
EP0061790B1 EP82200269A EP82200269A EP0061790B1 EP 0061790 B1 EP0061790 B1 EP 0061790B1 EP 82200269 A EP82200269 A EP 82200269A EP 82200269 A EP82200269 A EP 82200269A EP 0061790 B1 EP0061790 B1 EP 0061790B1
Authority
EP
European Patent Office
Prior art keywords
grab
housing
crane according
grab crane
travelling
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
EP82200269A
Other languages
English (en)
French (fr)
Other versions
EP0061790A1 (de
Inventor
Jan Dirk Albert Van Deijk
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.)
FRANS SWARTTOUW BV
Original Assignee
FRANS SWARTTOUW BV
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 FRANS SWARTTOUW BV filed Critical FRANS SWARTTOUW BV
Priority to AT82200269T priority Critical patent/ATE9570T1/de
Publication of EP0061790A1 publication Critical patent/EP0061790A1/de
Application granted granted Critical
Publication of EP0061790B1 publication Critical patent/EP0061790B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/02—Bucket grabs

Definitions

  • the invention is related to a grab crane with at least one supported beam and a travelling trolley movable along, on or in said beam, from which an up and down movable grab is suspended by means of cables.
  • Grab cranes are used for transshipment of bulk material as coal, ore and chemicals.
  • a great disadvantage of such cranes is the formation of dust, caused by material leaking from the grab or deposited on the grab and falling down from it. In particular with strong winds the released dust is blown away strongly.
  • grab cranes In the view of environmental experts an increasing objection exists against grab cranes.
  • the invention aims to provide an environment-protecting grab crane with which the above-mentioned disadvantages of continuous dischargers are avoided and also the above- indicated problem of leaking material and blowing away of dust is solved.
  • the above-indicated grab crane is characterized by a housing for enclosing at least a substantial part of the grab, in which housing at least a part of the horizontal transport of the material can take place in a substantially dustfree way.
  • Blowing away of dust can be prevented if the tube or trunk can be positioned below the entrance of the housing for the grab.
  • the trunk preferably is connected to a carriage that can be moved along rails connected to the beam or beams.
  • a slit may be provided that can be covered by a belt that can be wound up.
  • the tube or trunk in this case can be connected to the end of the belt that can be wound.
  • the capacity of the crane can be increased by mounting two tracks for two travelling trolleys next to each other inside the tubular beam, each track being destined for a travelling trolley with grab.
  • the beam at its free end can be provided with a parking place for a travelling trolley with grab.
  • the crane according to the Figures 1, 2 and 3 comprises two portals 1, 2 that support two beams 3, 4.
  • the forwardly directed part of these beams can pivot in the usual way at 5 (see dotted line), so it will not be an obstacle during mooring and departing of ships.
  • travelling trolley 6 can be moved to which a grab 7 of usual construction is suspended by means of closing ropes and holding ropes.
  • the travelling trolley may be a machine trolley, e.g. machine trolley drawn by cables or a cable trolley. Latter is the case in the shown embodiment.
  • the bottom of the housing 8 comprises two hinged flaps 11, that can be opened and closed by hydraulic or pneumatic cylinders 12.
  • an accordion shaped tube 3 may be provided below the bottom. This is connected to a tube that in its turn is connected to a carriage 15, that will ride on flanges of the beams 3, 4. In case of dusty material the tube is used to prevent blowing of the falling bulk material. In case not dusty materials are transshipped, the carriage 15 together with tube 13 can be moved to the parking position at the free end of the beam to perform the normal use of the crane as known until now. This position is indicated with dotted lines in Figure 1. The transport of the carriage 15 and of the tube 13 also is possible by means of cables and a winch.
  • the function of the tube 13 is to prevent dust blowing during vertical transport of the grab.
  • the beams 3, 4 can be brought at a distance as small as possible above the ship to restrict the length of the accordion of the vertical conveyor. For that reason these beams are movable in the vertical direction with regard to the legs of the portals 1, 2.
  • the beams are suspended to cables, that can be drawn up or lowered by means of winches 16, 17.
  • the beams may be locked by not shown locking means, such as pins extending through holes.
  • the portal legs are provided with racks in which toothed gears or sets of locking beams mesh.
  • the two grabs 26, 27 cannot move along side each other.
  • the other will be moved in the parking position 31 at the free end of the beam.
  • the open bottom of the beam is covered from the position in which the grabs have to enter or have to leave the beam up to the end of the beam by a second conveyor belt 30 that can be rolled. It will be obvious that the system also may contain only one grab.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ship Loading And Unloading (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Claims (12)

1. Verladebrücke mit Greifer mit mindestens einem abgestützten Ausleger und einer Laufkatze, die auf oder in dem Ausleger in dessen Längsrichtung bewegbar ist und von der ein auf-und abbewegbarer Greifer mittels Kabeln aufgehängt ist, gekennzeichnet durch ein Gehäuse (8; 21) zum Einschließen zumindest eines wesentlichen Tels des Greifers (7; 26, 27), wobei in dem Gehäuse zumindest ein Teil der horizontalen Transportbewegung im wesentlichen staubfrei refolgen kann.
2. Verladebrücke mit Greifer nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse (8) mit der Laufkatze (6) verbunden und mit dieser bewegbar ist.
3. Verladebrücke mit Greifer nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse (21) aus einem im wesentlichen rhorförmigen Ausleger besteht, in dem die Laufkatze (24, 25) bewegbar ist.
4. Verladebrücke mit Greifer nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Ausleger (3, 4; 21) entlang den Stützen des Portals (1, 2) in Vertikalrichtung bewegbar ist.
5. Verladebrücke mit Greifer nach einem der vorstehenden Ansprüche, gekennzeichnet durch ein Rohr oder eine Kammer (13), die unter den Greifereingange des Gehäuses (8; 21) positioniert werden kann.
6. Verladebrücke mit Greifer nach Anspruch 5, dadurch gekennzeichnet, daß das Rohr oder die Kammer (13) durch eine Faltwand gebildet wird.
7. Verladebrücke mit Greifer nach Anspruch 2, dadurch gekennzeichnet, daß der Boden des Gehäuses mindestens eine angelankte Klappe (11) aufweist.
8. Verladerbrücke mit Greifer nach Anspruch 5, dadurch gekennzeichnet, daß die Kammer mit einem auf Schienen beweglichen Wagen (15) verbunden ist, die mit dem Ausleger oder den Auslegern verbunden sind.
9. Verladebrücke mit Greifer nach Anspruch 3, dadurch gekennzeichnet, daß der rohrförmige Ausleger (21) in seinem Boden einen Schlitz aufweist, der durch einen aufwickelbaren Riemn (28) abdeckbar ist.
10. Verladebrücke mit Greifer nach Anspruch 9, dadurch gekennzeichnet, daß das Rohr oder die Kammer (13) mit dem Ende des Riemens (28) verbunden ist.
11. Verladebrücke mit Greifer nach Anspruch 2 oder 3, gekennzeichnet durch zwei benachbarte Laufbahnen (22, 23) für Laufkatzen, wobei jede Laufbahn einer Laufkatze (24, 25) mit Greifer (26, 27) zugeordnet ist.
12. Verladebrücke mit Greifer nach Anspruch 11, dadurch gekennzeichnet, daß am freien Ende des Auslegers ein Abstellplatz (31) für jeweils eine Laufkatze (24, 25) vorgesehen ist.
EP82200269A 1981-03-20 1982-03-02 Verladebrücke mit Greifer Expired EP0061790B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82200269T ATE9570T1 (de) 1981-03-20 1982-03-02 Verladebruecke mit greifer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8101393A NL8101393A (nl) 1981-03-20 1981-03-20 Grijperkraan.
NL8101393 1981-03-20

Publications (2)

Publication Number Publication Date
EP0061790A1 EP0061790A1 (de) 1982-10-06
EP0061790B1 true EP0061790B1 (de) 1984-09-26

Family

ID=19837204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200269A Expired EP0061790B1 (de) 1981-03-20 1982-03-02 Verladebrücke mit Greifer

Country Status (4)

Country Link
EP (1) EP0061790B1 (de)
AT (1) ATE9570T1 (de)
DE (1) DE3260810D1 (de)
NL (1) NL8101393A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE873194L (en) * 1987-11-24 1989-05-24 Roeder Ind Holdings Container crane
US4881276A (en) * 1988-04-28 1989-11-21 Swan Richard L Reinforced cold weather sports glove
DE4101487C1 (en) * 1990-10-17 1991-12-19 O & K Orenstein & Koppel Ag, 1000 Berlin, De Feed for handling marine cargos - has travelling gantry with jib having track for crane carriages
EP0551665A1 (de) * 1992-01-13 1993-07-21 Dock-Express Shipping B.V. Versetzung und Aufrichtung eines Krans
DE4220465C1 (de) * 1992-06-23 1993-11-04 Aumund Foerdererbau Umschlaganlage fuer schuettgueter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126091B (de) * 1958-01-18 1962-03-22 Maschf Augsburg Nuernberg Ag Tiefofen- oder Stripperkran
GB1015366A (en) * 1963-01-21 1965-12-31 Head Wrightson & Co Ltd Unloader transporters
NL6503943A (de) * 1965-03-26 1966-09-27
US3783792A (en) * 1972-01-20 1974-01-08 J Cullom Repair facility for overhead crane

Also Published As

Publication number Publication date
EP0061790A1 (de) 1982-10-06
DE3260810D1 (en) 1984-10-31
NL8101393A (nl) 1982-10-18
ATE9570T1 (de) 1984-10-15

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