EP0185859A2 - Drague flottante - Google Patents

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Publication number
EP0185859A2
EP0185859A2 EP85112168A EP85112168A EP0185859A2 EP 0185859 A2 EP0185859 A2 EP 0185859A2 EP 85112168 A EP85112168 A EP 85112168A EP 85112168 A EP85112168 A EP 85112168A EP 0185859 A2 EP0185859 A2 EP 0185859A2
Authority
EP
European Patent Office
Prior art keywords
rope
counterweight
winch
gripper
trolley
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.)
Withdrawn
Application number
EP85112168A
Other languages
German (de)
English (en)
Other versions
EP0185859A3 (fr
Inventor
Wolfgang Rohr
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.)
Rohr GmbH
Original Assignee
Rohr 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
Priority claimed from DE19843445610 external-priority patent/DE3445610C1/de
Priority claimed from DE19853501078 external-priority patent/DE3501078A1/de
Application filed by Rohr GmbH filed Critical Rohr GmbH
Publication of EP0185859A2 publication Critical patent/EP0185859A2/fr
Publication of EP0185859A3 publication Critical patent/EP0185859A3/fr
Withdrawn legal-status Critical Current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
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4131—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device mounted on a floating substructure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • 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
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/52—Floating cranes
    • 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
    • E02F9/18—Counterweights

Definitions

  • the invention relates to a dredger with a floating body on which the hoist having a holding winch is attached for a gripper suspended on ropes.
  • Such dredgers are known which are used to extract sand and gravel from great depths.
  • Two-shell grabs are used for dredging, with opening and closing either using ropes or using a hydraulic device.
  • the gripper is suspended from a trolley, which is either self-propelled or has a cable drive.
  • a hoist is arranged on the trolley, which drives the winch.
  • swimming dredgers are also known in which a luffing jib and a lifting mechanism for a gripper arranged on the jib are attached. Such dredgers are mainly used for lower performance and for a point dredging.
  • the invention has for its object in a swimming to ensure the largest possible lifting of the gripper weight when lifting the load.
  • the gripper is connected in a counter-lifting and lowering movement via a rope to a counterweight.
  • the invention has the essential advantage that the hoist can be designed for a lower output, which is of great importance in particular with large lifting paths, which are up to 100 meters in such dredgers.
  • the dredger shown has a floating body 1, on which various structures are arranged, or a cross member 3 is supported on supports 2, on which a travel arm 4 for a trolley 5 is arranged.
  • the trolley 5 is provided with a hoist 6, which has a holding winch 7.
  • a gripper 8 is suspended from the holding winch 7, the gripper 8 being able to be raised and lowered via a rope 9.
  • a rope 10 is wound in the opposite direction, which is guided at one end of the cross member 3 via a deflection roller 11 and holds a counterweight 12, the rope 10 guided via a deflection roller 13 on the counterweight 12 on the cross member 3 on one Bracket 14 is attached.
  • the gripper 8 which is about 20% heavier than the counterweight 12, is relieved in weight when it is lifted by the counterweight 12 which is simultaneously lowered, and conversely only slight braking forces act on the lifting mechanism 6 when the gripper 8 is lowered.
  • the hoist brakes are closed, so that the gripper can dig with its full weight without being relieved
  • an additional winding surface for the cable 10 is provided on the holding winch 7. You can also arrange the rope 10 to the holding winch 7 so that this rope 10 winds directly on the release winch 7 when the gripper 8 is lowered.
  • This configuration and arrangement of the counterweight 12 also simplifies the drive 15 for the trolley 5, this drive being arranged at the opposite end of the cross member 3 to the deflection roller 11.
  • the drive takes place via a cable 16, a pulling force being exerted when moving in the direction of the trolley drive 15, while the trolley 5 is pulled by the counterweight in the opposite direction and a braking effect must be generated on the drive 15.
  • the gripper 8 is relieved directly of the counterweight 12 in that the cable 10 is fastened to the gripper 8 via an additional deflection roller 17 on the trolley 5.
  • This embodiment is readily applicable to easily dredged material.
  • the trolley 5 is provided with its own travel drive, the cable 10 being deflected via two additional deflecting rollers 18, 19 at the end of the cross member 3 and at the other side of the trolley 5 is attached.
  • FIGS. 7 and 8 The embodiment shown in FIGS. 7 and 8 is suitable for a four-rope gripper operation, a closing winch 20 being arranged on the trolley 5 in addition to the holding winch 7.
  • the rope 10 for the counterweight 12 is arranged on the holding winch 7.
  • FIGS. 9 and 10 show an embodiment in which the counterweight 12 is divided on a four-rope winch for such a hydraulic gripper operation and the respective partial weight is arranged on the holding winch 7 and on the closing winch 20, for example.
  • the existing traction drive for the trolley 5 can be retained.
  • a luffing jib 22 is attached to a floating body 1 and cooperates with a funnel 21. By steeper erection of this boom 22, the gripper 8 suspended on the boom can be lowered into the water by the floating body 1.
  • the gripper 8 is raised and lowered via a rope 9 and a lifting mechanism 6 with a holding winch 7.
  • a support 23, which has a deflection wheel 24, is attached to the floating body 1 on the side of the lifting mechanism 6.
  • a counterweight 12 with deflection roller 13 is suspended on this support 23, specifically via a rope 10, which is the outermost on this deflection roller 24 and a further deflection roller 25. End of the luffing jib 22 is guided to the gripper 8.
  • the rope 10 can also be directly fed to the winch 7 and wound there in the opposite direction to the gripper movement.
  • the counterweight 12 is suspended directly from the lifting mechanism 6, the rope 10 of the counterweight being wound on the winch 7 in the manner described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)
  • Bridges Or Land Bridges (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Manipulator (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP85112168A 1984-12-14 1985-09-25 Drague flottante Withdrawn EP0185859A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19843445610 DE3445610C1 (de) 1984-12-14 1984-12-14 Schwimmbagger
DE3445610 1984-12-14
DE19853501078 DE3501078A1 (de) 1985-01-15 1985-01-15 Schwimmbagger
DE3501078 1985-01-15

Publications (2)

Publication Number Publication Date
EP0185859A2 true EP0185859A2 (fr) 1986-07-02
EP0185859A3 EP0185859A3 (fr) 1988-01-27

Family

ID=25827359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112168A Withdrawn EP0185859A3 (fr) 1984-12-14 1985-09-25 Drague flottante

Country Status (8)

Country Link
EP (1) EP0185859A3 (fr)
AU (1) AU580116B2 (fr)
CA (1) CA1261790A (fr)
CH (1) CH668059A5 (fr)
ES (1) ES8701676A1 (fr)
FR (1) FR2574834B1 (fr)
GB (1) GB2168310B (fr)
IT (1) IT1201984B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206630A1 (de) * 1991-12-11 1993-06-17 Ledergerber Hans Juergen Turmkran
CN116142984A (zh) * 2023-04-20 2023-05-23 河南迅捷检测中心技术服务有限公司 一种轻便可移动式新型吊运设备

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937317C1 (fr) * 1989-11-09 1991-05-16 Rohr Gmbh, 6701 Otterstadt, De
DE9108952U1 (de) * 1991-07-20 1991-09-12 Rohr GmbH, 67166 Otterstadt Schwimmgreiferanlage für die Gewinnung von Sand und Kies
US6588126B2 (en) * 2000-04-13 2003-07-08 Ground Breaking Innovations Pty Ltd Drag link bucket controls
RU2193517C2 (ru) * 2000-08-30 2002-11-27 Федеральное Государственное Унитарное Предприятие "Санкт-Петербургское Морское Бюро Машиностроения "Малахит" Грузоподъемное устройство
WO2014207315A1 (fr) * 2013-06-27 2014-12-31 Konecranes Plc Grue mobile
ES2554647B1 (es) * 2014-06-20 2016-07-12 Eduardo Manuel MONTERO RICO Grúa de pórtico para la manipulación de contenedores.
CN106241614B (zh) * 2016-09-28 2018-11-13 山东大学 一种盾构机装配与出渣两用龙门吊

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1318467A (en) * 1919-10-14 Waeeen teavell
GB189319166A (en) * 1893-10-12 1894-08-11 Francis Gould Morony Stoney Improvements in Floating Derrick Cranes.
US985417A (en) * 1906-04-27 1911-02-28 Ole Johnson Apparatus for elevating, transporting, and discharging material.
US971708A (en) * 1909-03-22 1910-10-04 Thomas S Watson Apparatus for elevating, transporting, and discharging material.
GB287535A (en) * 1927-03-23 1928-10-11 Johann Martin Bernhard Device for the raising and lowering of loads, particularly applicable to cranes
GB301211A (en) * 1927-12-07 1928-11-29 Frederick Gilbert Mitchell Improvements in or relating to apparatus for delivering coal or like material to bunkers and other receptacles associated with locomotive coaling plant
GB605775A (en) * 1941-03-11 1948-07-30 Benoto Sa Improvements in counterweight control systems for lifting device crabs
GB621109A (en) * 1944-02-04 1949-04-05 Benoto Sa Improvements in hoisting apparatus
GB697810A (en) * 1950-10-06 1953-09-30 Moritz Kloenne Improvements in cranes, more especially floating cranes, with variable counter-weights
GB900877A (en) * 1959-12-01 1962-07-11 Charles Vilain Gantry for handling flexible conduits
DE2135322C3 (de) * 1971-07-15 1978-05-24 Willi 6945 Hirschberg Weidenhueller Baggervorrichtung
DE3071488D1 (en) * 1979-10-11 1986-04-17 Sobemai Sa Balancing system for parts of cranes and the load
DE8033352U1 (de) * 1980-12-16 1982-04-08 R + S Rohr GmbH Mechanische Verfahrenstechnik, 6701 Waldsee "schwimmbagger"
DE8436634U1 (de) * 1984-12-14 1985-05-02 Rohr GmbH, 6720 Speyer Schwimmbagger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206630A1 (de) * 1991-12-11 1993-06-17 Ledergerber Hans Juergen Turmkran
CN116142984A (zh) * 2023-04-20 2023-05-23 河南迅捷检测中心技术服务有限公司 一种轻便可移动式新型吊运设备

Also Published As

Publication number Publication date
GB2168310B (en) 1988-11-09
AU580116B2 (en) 1989-01-05
ES547822A0 (es) 1986-12-01
CH668059A5 (de) 1988-11-30
CA1261790A (fr) 1989-09-26
IT1201984B (it) 1989-02-02
FR2574834A1 (fr) 1986-06-20
ES8701676A1 (es) 1986-12-01
AU5057285A (en) 1986-06-19
GB8528815D0 (en) 1985-12-24
GB2168310A (en) 1986-06-18
IT8583414A0 (it) 1985-09-27
EP0185859A3 (fr) 1988-01-27
FR2574834B1 (fr) 1989-02-03

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Inventor name: ROHR, WOLFGANG