EP0061790A1 - Grue à benne preneuse - Google Patents

Grue à benne preneuse Download PDF

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Publication number
EP0061790A1
EP0061790A1 EP82200269A EP82200269A EP0061790A1 EP 0061790 A1 EP0061790 A1 EP 0061790A1 EP 82200269 A EP82200269 A EP 82200269A EP 82200269 A EP82200269 A EP 82200269A EP 0061790 A1 EP0061790 A1 EP 0061790A1
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.)
Granted
Application number
EP82200269A
Other languages
German (de)
English (en)
Other versions
EP0061790B1 (fr
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/fr
Application granted granted Critical
Publication of EP0061790B1 publication Critical patent/EP0061790B1/fr
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, to which by means of cables an up and down movable grab is suspended.
  • Grab cranes are used for transshipment of bulk material as coal, ore and chemicals.
  • a great disadvantage of it 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. From the side of environmental experts an increasing exists against grab cranes.
  • the invention aims to provide an environmental friendly grab crane with which the above-mentioned disadvantages of continous 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.
  • the possibility is present to make use of a relatively small housing that is connected to the travelling trolley and can be moved herewith.
  • the housing is mainly formed by a tubular beam, in which the travelling trolley and the grab can be run.
  • the beam can be moved in vertical direction along the legs of the portals of the crane.
  • Blowing away of dust can be prevented if the tube or trunk can be positioned below the entrance of the housing for the grab.
  • This tube or trunk for instance is designed as an accordeon so it can be pulled up when not in use.
  • the bottom of the housing may comprise at least one hinged portion.
  • the trunk preferably is connected to a carriage that can be moved along rails connected to the beam or beams.
  • the housing is formed by a tubular beam, in the bottom of it a slit may be provided that can be covered by a belt that can be wound.
  • 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 a travelling trolley next to each other inside the tubular beam, each track being destined for a travelling trolley with grab.
  • the beam 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.
  • this housing 8 is relatively small and is suspended to the travelling trolley 6, so it can be moved along with the travelling trolley.
  • the bottom of the housing 8 comprises two hinged flaps 11, that can be opened and closed by hydraulic or pneumatic cylinders 12.
  • an accordeon shaped tube 13 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 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 accordeon in the vertical conveyor. For that reason these beams are movable in vertical direction with regard to the legs of the portals 1, 2. For instance 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.
  • locking means such as pins extending through holes.
  • a relatively low position of the beams 3, 4 is indicated by dotted lines. This position corresponds with a loaded vessel. In practice it comes to the fact, that the beams during discharge of a vessel are moved upwardly periodically as adaption to the decreasing draught of the ship.
  • the bottom flaps 11 are brought in the open 5 position and the grap is opened.
  • the material arrives through the hopper on the discharge conveyor 18. Near the hopper a dust suction means can be provided.
  • control cabine is indicated with 19.
  • the embodiment according to figures 4 and 5 differs from the above embodiment in that instead of a relatively small housing , that is movable along the beams, a stationary housing is chosen being the beam 21 itself.
  • This beam has the shape of a hollow tube with a substantially open bottom.
  • the open bottom of the beam 21 is covered up to the place where the grabs have to be able to enter or to leave the beam by means of a conveyor belt 28, that can be wound on a roller 29.
  • the belt 28 is present for catching spilled material.
  • the roller 29 is in such a position with regard to the hopper 9 that material on the belt, when this is wound, arrives in the hopper.
  • this second embodiment comprises a tube or trunk 13, that either is connected to the end of conveyor belt 28 or is movable separately. Also this tube or trunk is destined to be mounted below the beam entrance for the grabs to avoid dusting and blowing away of dust.
  • the beam is moreover movable in vertical direction by means of winches 16, 17 that are able to wind or unwind the suspension ropes.
  • the two grabs 26, 27 cannot move along 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 conveyor belt 30 that can be rolled. It will be obvious that the system also may contain only one grab.
  • a telescopic extendable tube may be used instead of the accordeon trunk 13 .
  • the grabs can be able to be exchanged for instance by means of a so-called pear-shaped connection or by the possibility of unreaving the ropes.
  • the discharge conveyor 18 can be carried out in several ways, for instance so that discharge perpendicular to the shown discharge can take place.
  • this beam or beams can be connected fixed to the portals and the legs of the portals could be provided with ram constructions.
  • a container could be used that, after that grab has entered the housing, can be moved below the grab and subsequently moves with the travelling trolley.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ship Loading And Unloading (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Control And Safety Of Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP82200269A 1981-03-20 1982-03-02 Grue à benne preneuse Expired EP0061790B1 (fr)

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
NL8101393 1981-03-20
NL8101393A NL8101393A (nl) 1981-03-20 1981-03-20 Grijperkraan.

Publications (2)

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

Family

ID=19837204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200269A Expired EP0061790B1 (fr) 1981-03-20 1982-03-02 Grue à benne preneuse

Country Status (4)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318264A1 (fr) * 1987-11-24 1989-05-31 Daniel A. Hanafin Grue à portique pour conteneurs
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 (fr) * 1992-01-13 1993-07-21 Dock-Express Shipping B.V. Repositionnement et érection d'une grue
WO1994000375A1 (fr) * 1992-06-23 1994-01-06 Aumund-Fördererbau Gmbh Installation de transbordement pour produits en vrac
CN115959427A (zh) * 2022-12-19 2023-04-14 武汉奋进智能机器有限公司 空中转运设备

Citations (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 (fr) * 1965-03-26 1966-09-27
US3783792A (en) * 1972-01-20 1974-01-08 J Cullom Repair facility for overhead crane

Patent Citations (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 (fr) * 1965-03-26 1966-09-27
US3783792A (en) * 1972-01-20 1974-01-08 J Cullom Repair facility for overhead crane

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318264A1 (fr) * 1987-11-24 1989-05-31 Daniel A. Hanafin Grue à portique pour conteneurs
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 (fr) * 1992-01-13 1993-07-21 Dock-Express Shipping B.V. Repositionnement et érection d'une grue
WO1994000375A1 (fr) * 1992-06-23 1994-01-06 Aumund-Fördererbau Gmbh Installation de transbordement pour produits en vrac
CN115959427A (zh) * 2022-12-19 2023-04-14 武汉奋进智能机器有限公司 空中转运设备

Also Published As

Publication number Publication date
NL8101393A (nl) 1982-10-18
ATE9570T1 (de) 1984-10-15
EP0061790B1 (fr) 1984-09-26
DE3260810D1 (en) 1984-10-31

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