KR20160121196A - Crane apparatus for maritime - Google Patents

Crane apparatus for maritime Download PDF

Info

Publication number
KR20160121196A
KR20160121196A KR1020150050874A KR20150050874A KR20160121196A KR 20160121196 A KR20160121196 A KR 20160121196A KR 1020150050874 A KR1020150050874 A KR 1020150050874A KR 20150050874 A KR20150050874 A KR 20150050874A KR 20160121196 A KR20160121196 A KR 20160121196A
Authority
KR
South Korea
Prior art keywords
tower
crane boom
deflection
crane
coupled
Prior art date
Application number
KR1020150050874A
Other languages
Korean (ko)
Inventor
김민석
Original Assignee
삼성중공업 주식회사
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 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020150050874A priority Critical patent/KR20160121196A/en
Publication of KR20160121196A publication Critical patent/KR20160121196A/en

Links

Images

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
    • B66C23/18—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
    • 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
    • B66C23/53—Floating cranes including counterweight or means to compensate for list, trim, or skew of the vessel or platform

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

An offshore crane apparatus is disclosed. According to an embodiment of the present invention, the offshore crane apparatus comprises: a tower which is installed in a ship or an offshore structure; a rotary frame which is coupled to the top of the tower to be rotated around a vertical rotary shaft; a crane boom which is coupled to the rotary frame to protrude from both sides of the rotary frame; a wire which is installed in one end of the crane boom; a deflection easing part which is coupled to the other end of the crane boom to ease the deflection of the crane boom; and a connection part which is extended from the deflection easing part and is coupled to the tower to be rotated.

Description

{CRANE APPARATUS FOR MARITIME}

The present invention relates to a marine crane device.

Generally, a crane is a machine that moves and carries heavy objects up and down or horizontally. Types of crane include overhead traveling crane, jib crane, gantry crane, wall crane ), Derrick crane, tower crane, and floating crane.

Among them, tower crane is developed for harbor unloading or high-rise construction and is widely used especially in shipyard. A tower crane is constructed by installing a trolley or boom by installing a rotating frame at the top of the tower. The tower crane can rotate 360 degrees and has a wide working range and superior work performance compared to other cranes. However, since the trolley or boom is subjected to excessive load by the heavy object, it is necessary to observe the rated load and to prevent overload.

Korean Patent Publication No. 10-2010-0069722 (June 25, 2010)

Embodiments of the present invention can provide a marine crane apparatus in which deflection of a crane boom is mitigated and a part of the load of the deflection relief portion is dispersed to the tower through a connection portion.

According to an aspect of the present invention, there is provided a tower installed on a ship or an offshore structure; A rotating frame rotatably coupled to an upper portion of the tower about a rotational axis in a vertical direction; A crane boom coupled to the rotating frame so as to protrude from both sides of the rotating frame; A wire installed at one end of the crane boom; A sag relieving unit coupled to the other end of the crane boom to alleviate deflection of the crane boom; And a connection portion extending from the deflection relief portion and rotatably coupled to the tower.

The connection portion may be formed in an annular shape surrounding the outer circumferential surface of the tower.

A stopper for supporting a bottom surface of the connecting portion may protrude from an outer circumferential surface of the tower.

A guide groove into which the connection portion is inserted may be formed on an outer circumferential surface of the tower.

The deflection relieving portion may be capable of controlling the weight.

The deflection relieving portion may include a water tank capable of weight control by supplying and discharging seawater.

According to the embodiments of the present invention, the sag of the crane boom can be relieved and a part of the load of the sagging mitigating part can be dispersed to the tower through the connecting part, so that the fatigue load of the crane boom can be reduced and the durability of the crane device can be improved.

Further, since the deflection relief portion is coupled to the tower, a safety accident such as falling of the deflection relief portion can be prevented.

1 is a view showing a marine crane apparatus according to an embodiment of the present invention.
FIG. 2 is a view showing a coupling structure of a connection portion and a tower. FIG.
3 is a view showing another example of the coupling structure of the connection portion and the tower.
4 is a view showing another example of the coupling structure of the connection portion and the tower.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, when a component is referred to as "comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise. Also, throughout the specification, the term "on" means to be located above or below the object portion, and does not necessarily mean that the object is located on the upper side with respect to the gravitational direction.

In addition, the term " coupled " is used not only in the case of direct physical contact between the respective constituent elements in the contact relation between the constituent elements, but also means that other constituent elements are interposed between the constituent elements, Use them as a concept to cover each contact.

The sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an embodiment of a marine crane apparatus according to the present invention will be described in detail with reference to the accompanying drawings. Referring to the accompanying drawings, the same or corresponding components are denoted by the same reference numerals, The description will be omitted.

1 is a view showing a marine crane apparatus according to an embodiment of the present invention.

1, a marine crane apparatus 10 according to an embodiment of the present invention includes a tower 100, a rotating frame 200, a crane boom 300, a wire 400, a slackening relief portion 500, And a connection part 600. [

The tower 100 may be installed to extend upwardly from the ship or offshore structure 20. Herein, the offshore structure 20 may be a floating offshore structure such as a floating production storage and offloading (FPSO), a floating production unit (FPU) Includes LNG-FPSO (Liquefied Natural Gas), Floating Production Storage and Offloading (LNG-FPU), Liquefied Natural Gas Floating Production Unit (LNG-FPU), and Fixed Offshore Structures . Figure 1 shows a tower 100 installed on an offshore structure 20, but the tower 100 may also be installed on a ship.

The tower 100 may be formed in a cylindrical shape, for example, a steel pipe.

The rotary frame 200 may be rotatably coupled to the upper portion of the tower 100 about a vertical axis of rotation. Specifically, the rotating frame 200 is coupled to the upper end of the tower 100 and can be rotated around the tower 100 as a center axis.

The crane boom 300 may be coupled to the rotating frame 200. As a result, the crane boom 300 can rotate together with the rotating frame 200.

The crane boom 300 may protrude from both sides of the rotary frame 200. Particularly, the crane boom 300 may protrude to one side of the rotary frame 200. Since the turning radius of the crane boom 300 becomes wider as the crane boom 300 is offset toward one side of the rotating frame 200, the working range of the crane apparatus can be widened.

The crane boom 300 may extend in the horizontal direction.

The wire 400 may be installed at one end of the crane boom 300. For example, the wire 400 may be wound on a winch installed in the crane boom 300.

The winch can be moved back and forth in the longitudinal direction of the crane boom (300) to move the wire (400). As a result, it is possible to carry the article 30 within the length range in which the crane boom 300 extends by the wire 400, and the position at which the load of the article can be received by the crane boom 300 may be adjusted.

At the end of the wire 400, the article 30 to be transported can be coupled. Accordingly, a sagging phenomenon may occur in which the crane boom 300 is deformed due to the load. Since the deflection of the crane boom 300 is directly related to the life of the crane device, the crane boom 300 should be designed to withstand the forces and moments acting on the crane boom 300 when the crane device is used, It is difficult to satisfy such a condition that a complicated additional work is required or an additional structure is installed to increase the weight.

The deflection relieving part 500 may be coupled to the other end of the crane boom 300.

The deflection relieving portion 500 can relieve deflection in the crane boom 300. Specifically, when the article 30 is transported, the load of the article 30 is burdened to one end of the crane boom 300. If such a state is continuously maintained, a sagging phenomenon of the crane boom 300 may occur. At this time, the load acting on both ends of the crane boom 300 can be balanced by coupling the deflection relief portion 300 of the load corresponding to the load of the article 30 to the other end of the crane boom 300. As a result, the fatigue load acting on the crane boom 300 can be reduced.

The deflection relief portion 500 may be directly coupled to the other end of the crane boom 300. The deflection relieving part 500 can balance the load acting on the crane boom 300 so that the load of the entire article 30 does not deviate to one end of the crane boom 300. The deflection relieving portion 500 may be a block formed of a material including, for example, concrete.

The deflection relieving part 500 may be coupled to the crane boom 300 through other coupling members or the like.

The deflection relieving portion 500 is adjustable in weight and may include a water tank.

The water tank can be controlled in weight by the supply and discharge of seawater.

The water tank may be supplied with seawater from an offshore structure (20) or a seawater supply device mounted on the ship. As a result, the weight can be adjusted quickly by using seawater which can be supplied easily at an adjacent place, so that the weight can be adjusted quickly as needed, and there is no need to install any complicated equipment.

The load applied to the crane boom 400 varies as the wire 400 moves back and forth in the longitudinal direction of the crane boom 300 by the winch when the article 30 is transported. 300 can be quickly dealt with in order to balance the loads at both ends.

2 is a view showing a coupling structure of the connection part 600 and the tower 100. As shown in FIG.

Referring to FIG. 2, the connection part 600 may extend from the deflection relief part 500 and be rotatably coupled to the tower 100. The connecting portion 600 can disperse a part of the load of the deflection relieving portion 500 to the tower 100 while fixing and supporting the deflection relieving portion 500.

The load applied to the crane boom 300 is dispersed and the sagging of the crane boom 300 is further prevented by the sagging mitigation part 500 being coupled to the other side of the crane boom 300 and being coupled to the connection part 600, The apparatus can be operated and the durability of the apparatus can be improved. Further, since the deflection relief portion 500 is fixed to the connection portion 600, a safety accident such as a fall of the deflection relief portion 500 can be prevented.

The connection portion 600 may be formed in an annular shape surrounding the outer peripheral surface of the tower 100. The connection portion 600 may be, for example, a bearing.

3 is a view showing another example of the coupling structure of the connection part 600 and the tower 100. As shown in FIG.

Referring to FIG. 3, a stopper 110 may protrude from the outer circumferential surface of the tower 100.

The stopper 110 may support the bottom surface of the connection portion 600. As a result, when the connection part 600 coupled to the tower 100 is disassembled due to breakage and aging of the connection part 600, the connection part 600 can be prevented from falling down from the tower 100.

4 is a view showing another example of the coupling structure of the connection part 600 and the tower 100. As shown in FIG.

Referring to FIG. 4, a guide groove 130 may be formed on an outer circumferential surface of the tower 100.

The connection portion 600 may be inserted into the guide groove 130. As a result, when the connection part 600 coupled to the tower 100 is disassembled due to breakage and aging of the connection part 600, the connection part 600 can be prevented from falling down from the tower 100. In this case, the surface area of the tower 100 to which the connection unit 600 is coupled is minimized, so that the influence due to the wind can be minimized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Marine crane device 20: Offshore structure
30: Commodity 100: Tower
110: stopper 130: guide groove
200: rotating frame 300: crane boom
400: wire 500: deflection relaxation part
600: connection

Claims (6)

Towers installed on ships or offshore structures;
A rotating frame rotatably coupled to an upper portion of the tower about a rotational axis in a vertical direction;
A crane boom coupled to the rotating frame so as to protrude from both sides of the rotating frame;
A wire installed at one end of the crane boom;
A sag relieving unit coupled to the other end of the crane boom to alleviate deflection of the crane boom; And
And a connection portion extending from the deflection relief portion and rotatably coupled to the tower. The method according to claim 1,
And the connecting portion is formed in an annular shape surrounding the outer peripheral surface of the tower. 3. The method of claim 2,
And a stopper for supporting a bottom surface of the connecting portion protrudes from an outer circumferential surface of the tower. 3. The method of claim 2,
And a guide groove into which the connecting portion is inserted is formed on an outer circumferential surface of the tower. 5. The method according to any one of claims 1 to 4,
Wherein the deflection relieving portion is capable of controlling the weight. The method according to claim 1,
Wherein the deflection relieving portion includes a water tank capable of controlling the weight by supplying and discharging seawater.
KR1020150050874A 2015-04-10 2015-04-10 Crane apparatus for maritime KR20160121196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150050874A KR20160121196A (en) 2015-04-10 2015-04-10 Crane apparatus for maritime

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150050874A KR20160121196A (en) 2015-04-10 2015-04-10 Crane apparatus for maritime

Publications (1)

Publication Number Publication Date
KR20160121196A true KR20160121196A (en) 2016-10-19

Family

ID=57250995

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150050874A KR20160121196A (en) 2015-04-10 2015-04-10 Crane apparatus for maritime

Country Status (1)

Country Link
KR (1) KR20160121196A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106429889A (en) * 2016-11-02 2017-02-22 中国南方电网有限责任公司超高压输电公司广州局 Automatic launching and recovering device applied to side-scan sonar fish towing
KR101936145B1 (en) * 2017-07-28 2019-04-03 (주)대한엔지니어링 Portable pulling up apparatus for marine observation drifting buoy

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100069722A (en) 2008-12-17 2010-06-25 삼성물산 주식회사 Crane weight analysis system and method for using thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100069722A (en) 2008-12-17 2010-06-25 삼성물산 주식회사 Crane weight analysis system and method for using thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106429889A (en) * 2016-11-02 2017-02-22 中国南方电网有限责任公司超高压输电公司广州局 Automatic launching and recovering device applied to side-scan sonar fish towing
CN106429889B (en) * 2016-11-02 2018-04-13 中国南方电网有限责任公司超高压输电公司广州局 Automatic retraction device applied to side-scan sonar towfish
KR101936145B1 (en) * 2017-07-28 2019-04-03 (주)대한엔지니어링 Portable pulling up apparatus for marine observation drifting buoy

Similar Documents

Publication Publication Date Title
JP7025433B2 (en) Deep sea hoisting system and method
KR102530779B1 (en) Hoisting blocks for cranes
US9463963B2 (en) Deep water knuckle boom crane
US20110017695A1 (en) Jack-up offshore platform and a method for assembling and servicing a wind turbine
US20130220960A1 (en) Heave Compensated Crane
KR20170064848A (en) Mooring apparatus for ship
US9290241B2 (en) Vessel comprising a crane
KR20160121196A (en) Crane apparatus for maritime
EP2944600B1 (en) Crane support and crane for use with the crane support
CN202169997U (en) Heavy lift vessel with door-shaped trusses
KR101189897B1 (en) A crane for pulling up vessel
KR101732520B1 (en) Chain stopping apparatus
KR101644523B1 (en) Tower crane
KR101477033B1 (en) Loading Apparatus for Submarine cable
CN105883647A (en) Rotating hanging bracket
KR102401281B1 (en) A system and method for handling large and heavy constructions from an offshore installation vessel
KR20150083714A (en) Apparatus for air resistance reduction
KR20160005887A (en) Floating crane rigging system
KR101643893B1 (en) Flying jib applying method of floating crane
KR101661905B1 (en) Crane apparatus
KR101672009B1 (en) Wheel type boat landing structures
KR20180061863A (en) Crane device, and ocean construction comprising the same
CN109678064A (en) Offshore crane and lifting ship
KR20130053236A (en) Crane
KR20150092997A (en) Drill ship

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application