KR20100133701A - A lug for moving ship block - Google Patents

A lug for moving ship block Download PDF

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Publication number
KR20100133701A
KR20100133701A KR1020090052390A KR20090052390A KR20100133701A KR 20100133701 A KR20100133701 A KR 20100133701A KR 1020090052390 A KR1020090052390 A KR 1020090052390A KR 20090052390 A KR20090052390 A KR 20090052390A KR 20100133701 A KR20100133701 A KR 20100133701A
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South Korea
Prior art keywords
lug
block
ship
ship block
cell guide
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KR1020090052390A
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Korean (ko)
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KR101497535B1 (en
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유정수
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삼성중공업 주식회사
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Priority to KR1020090052390A priority Critical patent/KR101497535B1/en
Publication of KR20100133701A publication Critical patent/KR20100133701A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/002—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for goods other than bulk goods
    • B63B25/004—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for goods other than bulk goods for containers
    • 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
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/10—Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/30—Moving or transporting modules or hull blocks to assembly sites, e.g. by rolling, lifting or floating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
    • B63B73/43—Welding, e.g. laser welding
    • 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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • 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
    • B66C1/66—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 for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/30—Chains
    • B65H2404/31—Chains with auxiliary handling means
    • B65H2404/311—Blades, lugs, plates, paddles, fingers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Robotics (AREA)
  • Ship Loading And Unloading (AREA)
  • Revetment (AREA)

Abstract

PURPOSE: A lug for moving a ship block is provided to stably carry a ship block by preventing interference with a cell guide. CONSTITUTION: A lug(100) for moving a ship block is installed in the site in which a cell guide(C) of a ship block(B) for a container ship is formed, and comprises a body, a side rib, and a horizontal rib. The bottom of the body is fixed to the ship block, adjacent to the cell guide. A coupling hole to which a hook of a crane is connected is formed on the top of the body. The side rib is fixed to the ship block by being perpendicularly connected to the body, opposite to the cell guide. The horizontal rib is fixed to the ship block by being perpendicularly connected to the side rib.

Description

선박 블록 이동용 러그{A lug for moving ship block}Lug for moving ship block

본 발명은 선박 블록에 설치되는 러그에 관한 것으로서, 컨테이너 선을 제작하기 위해서 별도로 제작된 블록을 크레인을 이용하여 이동시키는 데 사용되는 러그에 관한 것이다.The present invention relates to a lug installed in a ship block, and relates to a lug used to move a separately manufactured block using a crane to produce a container ship.

선박 건조 과정은 선박 전체를 여러 개의 대형 블록으로 나누어 제작한 후 이들을 쌓고 연결하는 탑재 과정을 거쳐 선박을 완성하게 되며, 이러한 대형 블록의 탑재 공정에서는 대형 크레인을 사용하게 된다.The ship construction process is made by dividing the whole vessel into several large blocks, and then stacking and connecting them to complete the vessel, and the large crane is used in the mounting process of these large blocks.

따라서, 선박 블록을 크레인으로 들어올리거나 이동시키기 위해서는 블록에 크레인을 안전하게 연결할 수 있는 부분이 필요하게 된다.Therefore, in order to lift or move the ship block to the crane, there is a need for a part that can safely connect the crane to the block.

즉, 연결 부분을 만들기 위해 각 블록에는 적절한 위치에 필요한 수 만큼의 러그(lug)를 설치하게 되고, 러그는 별도로 제작하여 필요한 부위에 용접한 후 이 부분에 크레인의 훅을 걸어 블록을 운반하게 된다.That is, in order to make a connection part, as many lugs as necessary are installed in each block at an appropriate position, and the lugs are manufactured separately and welded to the required parts, and then the hooks of the crane are carried on the parts to carry the blocks. .

일반적인 러그는 도 1에 도시된 바와 같이 상부에 크레인의 훅을 삽입하기 위한 걸림공(2)이 형성되며, 양면에는 러그(1)가 선박의 하중에 의해 블록에서 분 리되는 것을 방지하도록 복수 개의 리브(3)를 설치하게 된다.As shown in FIG. 1, a general lug is provided with a catching hole 2 for inserting a hook of a crane at an upper portion thereof, and a plurality of lugs 1 are formed on both sides to prevent the lug 1 from being separated from a block by a load of a ship. The rib 3 is installed.

이러한 러그(1)는 블록의 탑재과정을 모두 끝마친 후에는 블록의 손상 방지 및 높게 돌출됨으로 작업자들이 걸리면서 안전사고가 발생되는 것을 방지하기 위해 블럭에서 다시 제거하게 된다.The lug 1 is removed from the block again in order to prevent the occurrence of a safety accident while the workers are caught by preventing damage of the block and protruding high after finishing the mounting process of the block.

구체적으로는 블록에 용접된 러그의 하단부로부터 15mm~30mm를 남기고 산소 절단하는 공정을 거치고, 남은 러그의 하단부를 가공하는 밀링 과정, 절삭유 및 칩의 제거 등과 같은 여러 가지 마무리 공정이 요구된다.Specifically, various finishing processes such as a milling process for processing the lower end of the remaining lug, a removal of cutting oil and chips, and the like are required after the process of oxygen cutting leaving 15 mm to 30 mm from the lower end of the lug welded to the block.

또한, 선박 블록은 그 조립되는 위치에 따라서 다양한 형태를 갖추게 되고, 그 무게 중심 등이 다르므로 각 선박 블록에 맞게 러그의 위치 및 형태가 결정된다.In addition, the ship block has a variety of forms according to the assembly position thereof, since the center of gravity and the like is different, the position and shape of the lug is determined according to each ship block.

특히, 컨테이너 선용 선박 블록은 컨테이너의 적재를 위한 셀(cell) 가이드가 돌출된 형태로 설치되므로 이러한 부위에 러그를 설치한 경우에는 견인과정에서 간섭이 발생될 수 있는 문제점이 있다.In particular, since the container ship vessel block is installed in the form of a protruding cell guide for loading the container, there is a problem that interference may occur during the towing process when the lug is installed at such a part.

본 발명은 상기의 문제점들을 해결하기 위해서 안출된 것으로서, 본 발명은 컨테이너선용 선박 블록의 셀 가이드가 형성된 부위에 설치되는 러그를 제공하는 데 그 목적이 있다.The present invention has been made to solve the above problems, the object of the present invention is to provide a lug installed in the site where the cell guide of the container ship vessel block is formed.

본 발명에 따른 선박 블록 이동용 러그는 컨테이너선용 선박 블록의 셀 가이드가 형성된 부위에 설치되는 러그에 있어서, 상기 셀 가이드에 인접하여 하부면이 선박 블록에 고정되며, 크레인의 훅이 결합되는 체결공이 상측에 관통형성되는 몸체와, 상기 셀 가이드와 반대측 위치에 상기 몸체와 수직으로 결합되어 상기 선박 블록에 고정되는 측면 리브와, 상기 측면 리브와 수직으로 결합되어 상기 선박 블록에 고정되는 수평 리브로 이루어지는 것을 특징으로 한다.In the lug for ship block movement according to the present invention, in a lug installed at a portion where a cell guide of a container ship vessel block is formed, a lower surface is fixed to the ship block adjacent to the cell guide, and a fastening hole to which a hook of a crane is coupled is upper side. And a side rib formed to penetrate into the body guide, a side rib fixed to the ship block vertically coupled to the body at a position opposite to the cell guide, and a horizontal rib coupled to the side rib and vertically fixed to the ship block. It is done.

여기서, 상기 체결공은 상기 셀가이드의 높이보다 상대적으로 높게 형성되는 것을 특징으로 한다.Here, the fastening hole is characterized in that it is formed relatively higher than the height of the cell guide.

본 발명에 따른 선박 블록 이동용 러그는 셀 가이드의 높이보다 상대적으로 높게 체결공이 형성되고, 측면 리브와 수평 리브를 통해서 단단하게 몸체를 지지할 수 있으므로 컨테이너선용 선박 블록의 셀 가이드가 형성된 부위에 설치되더라도 셀 가이드와 간섭을 피하면서도 안전하게 선박 블록을 이동시킬 수 있다는 장점이 있다.In the ship block moving lug according to the present invention, since the fastening hole is formed relatively higher than the height of the cell guide, and the body can be firmly supported through the side ribs and the horizontal ribs, even when installed in the site where the cell guide of the container ship vessel block is formed. The advantage is that the ship block can be moved safely while avoiding interference with the cell guide.

이하, 첨부된 도면을 참조로 하여 본 발명 선박 블록 이동용 러그를 보다 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in more detail the ship block moving lug of the present invention.

도 2는 컨테이너 선용 선박 블록에 설치되는 러그의 위치를 도시하는 개념도이다.2 is a conceptual view showing the position of the lug installed in the container ship vessel block.

도 2에 도시된 바와 같이 컨테이너 운반용 선박은 별도로 제작된 선박 블록을 크레인을 통해서 이동시켜서 용접을 통해서 결합하여 제작하게 되고, 컨테이너를 수납하는 화물창을 형성하는 선박 블록(B)에는 상기 컨테이너를 지지하기 위한 셀 가이드(C)가 수직으로 형성된다.As shown in FIG. 2, the container carrying ship is manufactured by moving the separately manufactured ship block through a crane to be joined by welding, and supporting the container in the ship block B forming a cargo hold for storing the container. The cell guide C is formed vertically.

따라서, 크레인을 통해서 상기 선박 블록(B)을 이동시키기 위해서는 선박 블록 상측에 설치되는 러그(10)이외에도 상기 셀 가이드(C)가 형성된 부위에도 러그(100)가 설치되어야 한다.Therefore, in order to move the ship block (B) through a crane, the lug 100 should be installed at the site where the cell guide (C) is formed in addition to the lug (10) installed above the ship block.

본 발명은 이러한 셀 가이드가 형성된 부위에 설치되는 러그에 관한 것이다.The present invention relates to a lug installed at a site where such a cell guide is formed.

도 3은 본 발명의 바람직한 일실시예에 따른 선박 블록 이동용 러그를 도시하는 평면도이다.3 is a plan view showing a ship block moving lug according to an embodiment of the present invention.

도 3에 도시된 바와 같이 셀 가이드에 인접하여 하부면이 선박 블록(정확하게는 벌크헤드(B)의상부면)에 용접을 통해서 고정되며 크레인의 훅이 결합되는 체결공(112)이 상측에 관통형성되되 상기 체결공이 상기 셀 가이드의 높이보다 상대 적으로 높게 형성되는 몸체(110)와, 상기 셀 가이드와 반대측 위치에 상기 몸체와 수직으로 결합되어 상기 선박 블록에 고정되는 측면 리브(120)와, 상기 측면 리브(120)와 수직으로 결합되어 상기 선박 블록에 고정되는 수평 리브(130)로 이루어진다.As shown in Figure 3, the lower surface adjacent to the cell guide is fixed by welding to the vessel block (exactly the upper surface of the bulkhead (B)) and the fastening hole 112 to which the hook of the crane is coupled is formed through the upper side. The fastening hole is formed relatively higher than the height of the cell guide body 110, the side ribs 120 which is coupled to the body perpendicular to the body in a position opposite to the cell guide fixed to the vessel block, It is composed of a horizontal rib 130 that is vertically coupled to the side ribs 120 fixed to the vessel block.

부가적으로, 상기 체결공(112)이 형성되는 몸체에는 상기 체결공(112)의 강도를 보강할 수 있는 보강판(114)이 결합될 수 도 있다.In addition, a reinforcing plate 114 capable of reinforcing the strength of the fastening hole 112 may be coupled to the body in which the fastening hole 112 is formed.

구체적으로 본 발명에 따른 선박 블록 이동용 러그의 설치 상태에 대해 살펴보면,Specifically, looking at the installation state of the ship block moving lug according to the present invention,

도 4는 본 발명의 바람직한 일실시예에 따른 선박 블록 이동용 러그가 설치된 상태를 도시하는 개념도이다.4 is a conceptual diagram illustrating a state in which a ship block moving lug is installed according to an embodiment of the present invention.

도 4에 도시된 바와 같이 본 발명에 따른 선박 블록 이동용 러그는 먼저 몸체(110)의 하부면이 벌크 헤드(B:bluk head)의 상부면에 용접을 통해서 고정되며, 셀 가이드와 반대측 위치에 상기 몸체(110)와 수직으로 결합되어 상기 선박 블록(정확하게는 벌크 헤드의 측면)에 고정되는 측면 리브(120)와, 상기 측면 리브(120)와 수직으로 결합되어 상기 선박 블록(정확하게는 벌크 헤드의 상부면)에 고정되는 수평 리브(130)가 각각 설치된다.As shown in FIG. 4, in the ship block moving lug according to the present invention, the lower surface of the body 110 is first fixed to the upper surface of a bulk head (B) by welding, and is located at a position opposite to the cell guide. Side ribs 120 that are vertically coupled to the body 110 and fixed to the vessel block (exactly the side of the bulk head), and vertically coupled to the side ribs 120 to the vessel block (exactly of the bulk head) Horizontal ribs 130 fixed to the upper surface) are respectively installed.

즉 도 4에는 도시되지 않았지만 측면 리브(120)가 설치되는 반대측에 셀 가이드가 결합된다.That is, although not shown in FIG. 4, the cell guide is coupled to the opposite side where the side ribs 120 are installed.

도 5는 본 발명의 바람직한 일실시예에 따른 선박 블록 이동용 러그의 사용도이다.Figure 5 is a use of the ship block moving lug according to an embodiment of the present invention.

도 5에 도시된 바와 같이 몸체(110)의 상측에 형성된 체결공(112)에는 핀(140)이 결합되고, 상기 핀(140)은 샤클(150)에 연결되고, 상기 샤클(150)을 통해서 크레인에 연결된다.    As shown in FIG. 5, the pin 140 is coupled to the fastening hole 112 formed on the upper side of the body 110, and the pin 140 is connected to the shackle 150 and through the shackle 150. Is connected to the crane.

일반적으로 셀 가이드(C)는 벌크 헤드(B)의 상측에 결합된 브라켓(T)의 상측에 결합되므로, 상기 셀 가이드(C)와 간섭을 피하기 위해서는 셀 가이드(C)가 설치된 높이(h)보다 높은 위치(H)에 결합되어야 한다.In general, since the cell guide C is coupled to the upper side of the bracket T coupled to the upper side of the bulk head B, in order to avoid interference with the cell guide C, the height h of the cell guide C is installed. Should be coupled to a higher position (H).

이상과 같이 본 발명은 컨테이너선용 선박 블록의 셀 가이드가 형성된 부위에 형성되는 선박 블록 이동용 러그를 제공하는 것을 기본적인 기술적인 사상으로 하고 있음을 알 수 있으며, 이와 같은 본 발명의 기본적인 사상의 범주 내에서, 당업계의 통상의 지식을 가진 자에게 있어서는 다른 많은 변형이 가능함은 물론이다.As described above, it can be seen that the present invention provides the basic technical idea of providing a ship block moving lug formed at a portion where a cell guide of a container ship vessel block is formed, and within the scope of the basic idea of the present invention. Of course, many other variations are possible to those of ordinary skill in the art.

도 1은 종래의 선박 블록 이동용 러그를 도시하는 사시도.1 is a perspective view showing a conventional ship block moving lug.

도 2는 컨테이너 선용 선박 블록에 설치되는 러그의 위치를 도시하는 개념도.2 is a conceptual diagram showing the position of the lug installed in the container ship vessel block.

도 3은 본 발명의 바람직한 일실시예에 따른 선박 블록 이동용 러그를 도시하는 평면도.Figure 3 is a plan view showing a ship block moving lug according to an embodiment of the present invention.

도 4는 본 발명의 바람직한 일실시예에 따른 선박 블록 이동용 러그가 설치된 상태를 도시하는 개념도.4 is a conceptual diagram showing a state in which a ship block moving lug is installed according to an embodiment of the present invention.

도 5는 본 발명의 바람직한 일실시예에 따른 선박 블록 이동용 러그의 사용도.Figure 5 is a use of the ship block moving lug according to an embodiment of the present invention.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

110: 몸체110: body

112: 체결공112: fastener

120: 측면 리브120: side rib

130: 수평 리브130: horizontal rib

140: 핀140: pin

150: 샤클150: Shackle

Claims (2)

컨테이너선용 선박 블록의 셀 가이드가 형성된 부위에 설치되는 러그에 있어서,In the lug provided in the site where the cell guide of the container ship ship block is formed, 상기 셀 가이드에 인접하여 하부면이 선박 블록에 고정되며, 크레인의 훅이 결합되는 체결공이 상측에 관통형성되는 몸체와;A body having a lower surface fixed to the ship block adjacent to the cell guide and having a fastening hole through which a hook of the crane is coupled; 상기 셀 가이드와 반대측 위치에 상기 몸체와 수직으로 결합되어 상기 선박 블록에 고정되는 측면 리브와;Side ribs vertically coupled to the body at a position opposite to the cell guide and fixed to the vessel block; 상기 측면 리브와 수직으로 결합되어 상기 선박 블록에 고정되는 수평 리브;로 이루어지는 것을 특징으로 하는 선박 블록 이동용 러그.Lug for ship block movement, characterized in that consisting of; horizontal ribs are vertically coupled to the side ribs and fixed to the vessel block. 제 1항에 있어서,The method of claim 1, 상기 체결공은 상기 셀가이드의 높이보다 상대적으로 높게 형성되는 것을 특징으로 하는 선박 블록 이동용 러그.The fastening hole is a ship block moving lug, characterized in that formed relatively higher than the height of the cell guide.
KR1020090052390A 2009-06-12 2009-06-12 A lug for moving ship block KR101497535B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101497550B1 (en) * 2012-08-23 2015-03-02 삼성중공업 주식회사 Structure lifting lug

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KR200149024Y1 (en) * 1997-03-20 1999-06-15 김형벽 Lug hole with deck house for loading
KR200234826Y1 (en) * 2001-03-05 2001-09-26 대우조선공업 주식회사 Slot lug
KR20090132034A (en) * 2008-06-20 2009-12-30 정영재 Lug for vessel
KR100992574B1 (en) * 2008-06-23 2010-11-08 대우조선해양 주식회사 Clamping device for lug cutting to out panel of ship

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Publication number Priority date Publication date Assignee Title
KR101497550B1 (en) * 2012-08-23 2015-03-02 삼성중공업 주식회사 Structure lifting lug

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