NO341416B1 - Knuckle boom crane - Google Patents

Knuckle boom crane Download PDF

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Publication number
NO341416B1
NO341416B1 NO20160977A NO20160977A NO341416B1 NO 341416 B1 NO341416 B1 NO 341416B1 NO 20160977 A NO20160977 A NO 20160977A NO 20160977 A NO20160977 A NO 20160977A NO 341416 B1 NO341416 B1 NO 341416B1
Authority
NO
Norway
Prior art keywords
wagon
boom
crane
movable
knuckle
Prior art date
Application number
NO20160977A
Other languages
Norwegian (no)
Other versions
NO20160977A1 (en
Inventor
Lars Fylling Eide
Original Assignee
Rolls Royce Marine As
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 Rolls Royce Marine As filed Critical Rolls Royce Marine As
Priority to NO20160977A priority Critical patent/NO341416B1/en
Priority to PCT/NO2017/050147 priority patent/WO2017213516A1/en
Publication of NO20160977A1 publication Critical patent/NO20160977A1/en
Publication of NO341416B1 publication Critical patent/NO341416B1/en

Links

Classifications

    • 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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/68—Jibs foldable or otherwise adjustable in configuration
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/02—Devices for facilitating retrieval of floating objects, e.g. for recovering crafts from water
    • 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
    • B66C23/54—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0385—Cranes with trolleys movable along adjustable or slewable arms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Jib Cranes (AREA)

Description

Field of the invention
The present invention relates to a knuckle boom crane in a launch and recovery system (LARS), comprising a foundation equipped with a tiltable lower boom and an articulated connected and tiltable upper boom, each driven by respective cylinders.
Background of the invention.
The present invention relates to a "Knuckle Boom Crane for ROV" (KBCR), which is designed to handle work dass ROVs on a vessel or any suitable offshore installation. The present invention may also be used with Autonomous Underwater Vehicles - AUV.
Disclosure of the state of art.
A knuckle boom crane appears similar to a standard crane, except that the boom articulates at the 'knuckle' near the middle, letting it fold back like a finger. This provides a compact size for storage and manoeuvring.
Knuckle boom cranes have become very common on offshore vessels as less of the deck space is blocked by the crane. A disadvantage is the higher power demand and increased maintenance due to the increased amount of moving parts.
Knuckle boom crane arms are much lighter than boom truck cranes, and they are designed to allow for more payloads to be carried on the back of the truck that it is mounted on. The majority of them are mounted behind the cab and leave the entire bed of the truck empty.
The cranes come with different types of control systems, such as: stand up, control from the ground, seat control, or radio remote control. The radio remote systems can start the crane as well as run the crane. They come equipped with a computer readout system that immediately gives readouts from the system if the crane is overloaded or not.
Knuckle boom cranes are also used in ROV applications. Other known solutions move the entire knuckle boom crane using a skidding solution or rotating the crane with a slewing ring.
US 3884359 A relates to an articulated crane with an inner boom pivoted mounted on a supporting base, an outer boom pivotally mounted on the inner boom, and a pair of hydraulic cylinder assemblies, one for moving each of the booms, respectively.
JP 2014009077 A relates to a telescopic boom with a trolley including a hoist winch
device provided on a column post, and a return sheave for folding a wire rope, which is provided at the forward end of a tip boom. The wire rope drawn from a drum of the hoist winch device is wrapped round a sheave of a trolley through the return sheave, and the wire rope terminal is fixed to the base end part of the telescopic boom.
Objects of the present invention
It is an object to provide increased reach and flexibility of a knuckle boom crane, by håving a wagon in the crane jib. Moving this along the jib gives the flexibility to split the ROV package on deck.
Advantages with the present invention is among other use of a "mono-leg" main support and structure, which gives less obstacles on deck compared to todays "A-frame".
The invention gives easier installation with only one foundation, and is more compact and less space demanding.
The knuckle boom crane functionality for tilting and extended reach with integrated movable wagon for increased flexibility and reach gives the possibility to split the TMS (Tether Management System) from the ROV when on deck. Combined with a flexible docking head with in/out and left/right tilt results in a compact design, suitable for narrow hangars and road transportation.
Summary of the invention
The above objects are achieved by a knuckle boom crane in a launch and recovery system (LARS), comprising a foundation equipped with a tiltable lower boom and an articulated connected and tiltable upper boom, each driven by respective cylinders, wherein the upper boom comprises a movable wagon, said wagon being movable in a longitudinal wagon rail in the upper boom, and a tiltable docking head is connected to the movable wagon.
The movable wagon may further comprise a protruding and rotatable docking head beam, onto where said tiltable docking head is connected.
The wagon is preferable movable in the longitudinal wagon rail in the upper boom by a wagon cylinder.
The wagon cylinder is preferable in one end is connected to an end of the upper boom and in the other end connected to the movable wagon.
The movable wagon can be L-shaped.
A docking head sheave, for receipt of a cable from an operating winch, can be mounted to the protruding docking head beam of the movable wagon.
The foundation of the knuckle boom crane can be connected or mounted to a support base frame.
Preferable, the knuckle boom crane is of a mono-leg design.
Description of the diagrams
Embodiments of the present invention will now be described, by way of example only, with reference to the following diagrams wherein:
Figure 1 shows a knuckle boom crane according to the invention.
Figure 2 shows the knuckle boom crane according to the invention in a retracted and park position. Fig. 3 shows the knuckle boom crane according to the invention in a partially extracted position. Fig. 4-6 shows the knuckle boom crane according to the invention in different motion sequences. Fig. 7 shows the knuckle boom crane according to the invention combined with a base frame.
Description of preferred embodiments of the invention
Other known solutions move the entire knuckle boom crane using a skidding solution or rotating the crane with a slewing ring, whilst the present invention can be welded or bolted onto deck.
The knuckle boom crane KBCR according to the invention is designed to launch and recover a remotely operated vehicle - ROV overboard using the tiltable knuckle boom crane and an integrated movable wagon. The ROV is connected to the KBCR docking head when handled between deck and launch position. During ROV operation the KBCR may act as an overboard routing point between the ROV winch and the submerged ROV using an integrated docking head sheave.
As shown in the drawings the present knuckle boom crane 10 in a launch and recovery system (LARS) comprises in a known way a foundation 28 equipped with a tiltable lower boom 12 and an articulated connected and tiltable upper boom 14, each driven by respective cylinders 16,18, preferable a pair of cylinders but also one cylinder for each boom may be used. The crane 10 according to the invention is preferable of a mono-leg design.
The foundation 28 can be fixed to a deck of for instance a vessel by welding or alternatively a bolted connection, and acts as connection point 24 for the lower boom 12 and lower boom tilt cylinders 16. Forces from the lower boom 12 are transferred to the foundation 28 via for instance bolted connections in the connection points 24 and the lower boom cylinder 16 brackets.
The lower boom 12 has a mention bolted connections to the foundation 28, and is tiltable using the lower boom cylinders 16. The lower boom 12 acts as connection point 26 for the upper boom 14 and upper boom tilt cylinders 18. Forces from the upper boom 14 is transferred to the lower boom 12 via the bolted connections in the connections points 26 and the upper boom cylinder 18 brackets.
The upper boom 14 has bolted connections in the connection points 26 to the lower boom 12, and is tiltable using the upper boom cylinders 18. The upper boom 14 act as connection point for a wagon cylinder 34, and comprises a wagon rail 32 for a movable wagon 30, which is integrated in the boom structure 10. Forces from the movable wagon 30 are transferred from wagon pads (or similar) to the upper boom rail 32 sliding surfaces and from the wagon cylinder 34 to the cylinder bracket.
The movable wagon 30 is movable in the longitudinal wagon rail 32 in the direction of the upper boom 14, using the wagon cylinder 34, and is guided or slides along the upper boom rail 32 using integrated wagon pads or similar.
The movable wagon 30 comprises an integrated rotatable beam 42 with interface to a docking head 40 and rotation actuators/cylinders. Rotation is controlled by two actuators/cylinders; one for docking head left/right motion and one for docking head in/out motion. Forces from the docking head 40 are transferred to the wagon 30 via the rotatable beam 42 and the two rotation cylinder brackets.
As seen in the drawings the movable wagon 30 can be somewhat L- shaped, but other designs are also possible.
A docking head sheave 50, for receipt of a cable from an operating ROV winch (not shown), can be mounted to the docking head 40, and/or to the protruding docking head beam 42 of the movable wagon 30. The cable will run from the operating winch, over the sheave 50 and to a ROV or similar.
The knuckle boom crane 10 according to the invention may further comprise or be connected to a support base frame 60, which can be equipped with driptray and sea fasten ing.
As seen in figure 2 the knuckle boom crane according to the invention is in a retracted and park position, which gives a compact design. Fig. 3 shows the knuckle boom crane according to the invention in a partially extracted position, as an indication of increased reach and flexibility of a knuckle boom crane. As apparent from figures 4-6, showing the knuckle boom crane according to the invention in different motion sequences, håving a wagon in the crane jib and moving the wagon along the jib gives a multitude of reach and flexibility possibilities, and offers the flexibility to split the ROV package on deck.

Claims (9)

1. Knuckle boom crane (10) in a launch and recovery system (LARS), comprising a foundation (28) equipped with a tiltable lower boom (12) and an articulated connected and tiltable upper boom (14), each driven by respective cylinders (16,18),characterized in thatthe upper boom (14) comprises a movable wagon (30), said wagon (30) being movable in a longitudinal wagon rail (32) in the upper boom (14), and that a tiltable docking head (40) is connected to the movable wagon (30).
2. Knuckle boom crane (10) according to claim 1,characterized in thatthe movable wagon (30) comprises a protruding and rotatable docking head beam (42), onto where said tiltable docking head (40) is connected.
3. Knuckle boom crane (10) according to claim 1,characterized in thatthe wagon (30) is movable in the longitudinal wagon rail (32) in the upper boom (14) by a wagon cylinder (34).
4. Knuckle boom crane (10) according to claim 3,characterized in thatthe wagon cylinder (34) in one end is connected to an end of the upper boom (14) and in the other end is connected to the movable wagon (30).
5. Knuckle boom crane (10) according to claim 1,characterized in thatthe movable wagon (30) is L-shaped.
6. Knuckle boom crane (10) according to claim 1-2,characterized in thata docking head sheave (50), for receipt of a cable from an operating winch, is mounted to the docking head (40), and/or to the protruding docking head beam (42) of the movable wagon (30).
7. Knuckle boom crane (10) according to claim 1-2,characterized in thata docking head sheave (50), for receipt of a cable from an operating winch, is mounted to the protruding docking head beam (42) of the movable wagon (30).
8. Knuckle boom crane (10) according to claim 1,characterized in thatthe foundation (28) is connected or mounted to a support base frame (60).
9. Knuckle boom crane (10) according to claim 1,characterized in thatsaid crane (10) is of a mono-leg design.
NO20160977A 2016-06-07 2016-06-07 Knuckle boom crane NO341416B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO20160977A NO341416B1 (en) 2016-06-07 2016-06-07 Knuckle boom crane
PCT/NO2017/050147 WO2017213516A1 (en) 2016-06-07 2017-06-06 Knuckle boom crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20160977A NO341416B1 (en) 2016-06-07 2016-06-07 Knuckle boom crane

Publications (2)

Publication Number Publication Date
NO20160977A1 NO20160977A1 (en) 2017-11-06
NO341416B1 true NO341416B1 (en) 2017-11-06

Family

ID=59215849

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20160977A NO341416B1 (en) 2016-06-07 2016-06-07 Knuckle boom crane

Country Status (2)

Country Link
NO (1) NO341416B1 (en)
WO (1) WO2017213516A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3012945C (en) * 2017-11-22 2019-05-21 LiftWerx Holdings Inc. Lift system mountable in a nacelle of a wind turbine
NL2024690B1 (en) 2020-01-17 2021-09-08 Fnv Ip Bv Underwater vehicle docking and communication

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884359A (en) * 1968-11-27 1975-05-20 Hopper Inc Level luffing crane
US6082947A (en) * 1999-08-17 2000-07-04 Adamson; James E. Coordinated motion marine lifting device
WO2010093251A1 (en) * 2009-02-16 2010-08-19 National Oilwell Varco Norway As Method and device for hoisting an item by means of a crane
JP2014009077A (en) * 2012-06-29 2014-01-20 Furukawa Unic Corp Telescopic boom with trolley
EP2789566A1 (en) * 2013-04-11 2014-10-15 HMF Group A/S Foldable crane
US20160152451A1 (en) * 2012-06-06 2016-06-02 Seaonics As Hybrid Crane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2200956C2 (en) * 1971-01-19 1981-11-12 Magyar Hajó- és Darugyár, Budapest Crane with a cable-drawn trolley that can be moved on a constant incline
IT1251567B (en) * 1991-09-10 1995-05-17 Riva Calzoni Spa EQUIPMENT FOR TAKING, LOCKING AND HANDLING UNDERWATER AND SIMILAR VEHICLES.
NL1025137C2 (en) * 2003-12-24 2005-06-27 Hiab Leebur B V Loading system for lorries, comprises swing arm and crane with extra hook mounted on load platform
JP5711936B2 (en) * 2010-10-22 2015-05-07 株式会社関ヶ原製作所 Onboard boat lifting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884359A (en) * 1968-11-27 1975-05-20 Hopper Inc Level luffing crane
US6082947A (en) * 1999-08-17 2000-07-04 Adamson; James E. Coordinated motion marine lifting device
WO2010093251A1 (en) * 2009-02-16 2010-08-19 National Oilwell Varco Norway As Method and device for hoisting an item by means of a crane
US20160152451A1 (en) * 2012-06-06 2016-06-02 Seaonics As Hybrid Crane
JP2014009077A (en) * 2012-06-29 2014-01-20 Furukawa Unic Corp Telescopic boom with trolley
EP2789566A1 (en) * 2013-04-11 2014-10-15 HMF Group A/S Foldable crane

Also Published As

Publication number Publication date
NO20160977A1 (en) 2017-11-06
WO2017213516A1 (en) 2017-12-14

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: KONGSBERG MARITIME CM AS, NO

CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: KONGSBERG MARITIME AS, NO