KR20150019929A - Apparatus for lifting pipe for vessel - Google Patents

Apparatus for lifting pipe for vessel Download PDF

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Publication number
KR20150019929A
KR20150019929A KR20130097392A KR20130097392A KR20150019929A KR 20150019929 A KR20150019929 A KR 20150019929A KR 20130097392 A KR20130097392 A KR 20130097392A KR 20130097392 A KR20130097392 A KR 20130097392A KR 20150019929 A KR20150019929 A KR 20150019929A
Authority
KR
South Korea
Prior art keywords
pipe
lifting
control unit
wire
block
Prior art date
Application number
KR20130097392A
Other languages
Korean (ko)
Inventor
윤진기
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 KR20130097392A priority Critical patent/KR20150019929A/en
Publication of KR20150019929A publication Critical patent/KR20150019929A/en

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Classifications

    • 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
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • 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
    • B66C13/18—Control systems or devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

A marine pipe lifting device is disclosed.
According to an embodiment of the present invention, lifting means connected to a crane and lifted independently of each other are independently lifted or lowered. Lifters are spaced apart from each other in the longitudinal direction. The lifting means are connected to lifting means of the lifter, A marine pipe lifting device including a lifting wire sling may be provided.

Description

[0001] APPARATUS FOR LIFTING PIPE FOR VESSEL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ship lifting apparatus for a ship, and more particularly, to a ship lifting apparatus for lifting a pipe inserted into each block safely and easily into a block when a ship is manufactured.

Generally, in order to dry a ship, a block, which is a part of a ship, is assembled in a dock, and pipes necessary for the inside or the outside of the block are assembled when each block is manufactured.

In particular, many pipes are installed inside the hull. In order to insert the pipe into the hull block, the weight of the pipe is heavy and bulky, so a separate tower crane is used for the work.

That is, when the block to be assembled and the pipe are transferred, the pipe is connected to the tower crane by using a plurality of wires, and then about three to four workers push or pull the pipe to enter the pipe.

At this time, the workers are in contact with the operator of the tower crane through the transceiver, slowly pushing the pipe into the block, so that the pipe does not collide with the block when the pipe enters the block.

Pipe lifting usually involves using two cranes or one cranes and one chain block. Normally, with one crane lifting the pipe to a certain height, the end of the pipe is slightly moved to the bottom of the block Then, connect another crane or chain block to its end and hold it so that its end is level.

In order to further penetrate the pipe into the block, the wire that interferes with the block must be dismantled. When the interference between the wire and the block is removed, the pipe is slowly inserted further into the block, Reconnect wires.

The process of entering the pipe into the block is performed by repeating this method several times. Finally, when the pipe moves to a proper position inside the block, the pipe is fixed by U-bolts or the like.

As described above, in the work of lifting the heavy and bulky pipe and entering the inside of the block, it is inevitable to repeatedly dismantle and fasten the wire to enter the pipe while holding the pipe horizontally. In this case, It is not easy to disassemble the wire and there is a problem that a safety accident that the worker is injured by the tension of the wire occurs in the wire disassembly process. Also, the work of pulling the wire back to the pipe is also very difficult and inconvenient because the wire must be re-tensioned.

Since disassembly and fastening of the wire are accompanied by many inconveniences and difficulties, it takes a long time to enter the pipe into the block, which causes a problem that the entire ship is dried for a long time.

Korean Patent Publication No. KR 10-2012-0064466

Embodiments of the present invention are to provide a ship lifting apparatus capable of preventing a safety accident and shortening a working time by allowing a wire to be easily disassembled and fastened when a pipe is lifted and horizontally entered into a block.

According to an aspect of the present invention, there is provided a lifter lifting device connected to a crane, wherein a plurality of lifting and lowering means independently lifted or lowered are respectively connected to lifting means of the lifter, A marine pipe lifting device including a wire sling to be lifted can be provided.

Here, the lifter may include a lift beam connected to the crane via a wire and having the elevating unit installed at a lower portion thereof, and a control unit installed at one side of the lift beam to control the ascending or descending of the elevating unit .

Further, the control unit controls the supply of the working medium to the elevating means, and the elevating means may be a cylinder whose length is expanded and contracted by the working medium.

The control unit may also be a hydroic unit that supplies or recovers a working medium with the cylinder by an external electrical signal.

Also, the control unit can receive a wired signal or a wireless signal as an external electrical signal.

Further, the control unit can be remotely controlled by a remote control.

The wire sling may be provided with a shackle, and the shackle may be located higher than the pipe.

According to the embodiment of the present invention, when the pipe is hoisted and horizontally entered into the ship block, since the tension of the wire is freely released by the hydraulic cylinder which is independently lifted and lowered, it is easy to disassemble and fasten the wire, Safety accidents can be prevented.

Further, according to the embodiment of the present invention, since the wire disassembly and fastening time are shortened, the ship drying period can be shortened.

1 is a perspective view of a marine pipe lifting device according to an embodiment of the present invention,
2 is a perspective view illustrating a lifter according to an embodiment of the present invention.
Fig. 3 is a view showing that the lifter of Fig. 2 is controlled by wire,
Fig. 4 is a diagram showing that the lifter of Fig. 2 is controlled by radio; Fig.
5 illustrates a wire sling according to an embodiment of the present invention,
FIGS. 6A and 6B are views schematically showing a block entry operation of a pipe by the ship lifting device of FIG. 1;
7 is a view showing a state in which a block entering operation of a pipe is completed by the ship lifting apparatus of Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In describing the present embodiment, the same reference numerals and symbols are used for the same components, and further description thereof will be omitted.

The ship lifting apparatus according to one embodiment of the present invention will be described with reference to Figs. 1 to 5. Fig.

FIG. 1 is a perspective view of a ship lifting apparatus according to an embodiment of the present invention. Referring to FIG. 1, the ship lifting apparatus according to the present embodiment includes a lifter 100 and a wire sling 200 .

The lifter 100 is lifted to a proper height from the ground by a wire 11 connected to a crane 10 capable of lifting any material or object. The lifter 100 is independently lifted or lowered A plurality of elevating means 110 may be disposed so as to be spaced along the longitudinal direction.

The lifting means 110 may be spaced equidistantly from the lifter 100, but the lifting means 110 need not always be spaced equidistantly and may be arranged to maintain a different spacing.

A plurality of the wire sling 200 are connected to the plurality of elevating means 110 provided in the lifter 100. The number of the wire sling 200 corresponds to the number of the elevating means 110 And the wire sling 200 can horizontally lift the pipe 20 through the connection with the elevating means 110. [

That is, as shown in FIG. 1, the plurality of wire sling 200 are wrapped around various points of the pipe 20 at the bottom to lift the pipe 20 horizontally, The pipe 20 can be slowly moved toward the entrance of the block 30 through the crane 10 to enter the inside of the block 30 constituting part of the structure of the ship.

The wire sling 200 in which the interference with the block 30 occurs must be disassembled in order to allow the pipe 20 in the horizontal state to enter the inside of the block 30. At this time, Only the connected elevating means 110 is lowered independently so that the tension of the wire sling 200 by the load of the pipe 20 is completely released.

The process of entering the pipe 20 into the block 30 according to the present embodiment will be described in detail later with reference to Figs. 1, 6A, 6B and 7.

FIG. 2 is a perspective view of a lifter according to an embodiment of the present invention. As shown in FIG. 2, the lifter 100 may include a lift beam 120 and a control unit 130.

The lift beam 120 may be provided with a lifting flange 121 on the lift beam 120 so that the lifting beam 120 can be connected to the crane 10 via the wire 11. In this embodiment, Are formed at both ends of the upper portion of the lift beam 120. [

Also, the lift beam 120 is provided with a plurality of elevating means 110 as described above, and the elevating means 110 may be spaced apart from the lower surface of the lift beam 120 by a predetermined distance.

The control unit 130 is installed on one side of the lift beam 120 to control the up and down movement of the elevation means 110. In this embodiment, the control unit 130 is disposed on the upper part of the lift beam 120 However, the installation position of the control unit 130 is not necessarily limited to this, but may be appropriately installed in a necessary place.

The control unit may transmit power to the elevating means using an engine or an electric motor. Alternatively, the operating medium may be supplied to the elevating means to raise or lower the elevating means.

In the present embodiment, since the hydraulic control method in which oil is used as the working medium is adopted, the elevating means 110 can be realized as the hydraulic cylinder 111 whose length is expanded and contracted by the hydraulic pressure.

The control unit 130 operates in cooperation with the elevating means 110 such as supplying a predetermined operating medium to the elevating means 110 or withdrawing the already supplied working medium from the elevating means 110. [ And serves to control the supply of the medium.

Various operating fluids such as air, oil and the like may be used for the working medium. In this embodiment, the hydraulic fluid is controlled by using oil, which is an incompressible fluid having relatively reliable operation control. However, the present invention is not limited thereto. Other operating media can be used accordingly.

That is, when the elevating means 110 is the hydraulic cylinder 111, when the oil is supplied from the control unit 130, oil is supplied into the hydraulic cylinder 111 and the length of the hydraulic cylinder 111 is increased. The lifting means 110 is lowered to release the tension of the wire sling 200 due to the load of the pipe 20, so that the wire sling 200 can be easily disassembled.

For reference, even if the tension of one of the wire sling 200 is released, the tensile force of the plurality of other wire sling 200 is maintained, so that the pipe 20 can maintain a horizontal state as a whole.

Further, when the control unit 130 recovers the oil in the hydraulic cylinder 111, the length of the hydraulic cylinder 111 is reduced, and thus the elevating means 110 is raised.

Here, the control unit 130 may be a hydraulic unit 131 operated by an external electrical signal to supply or recover oil to / from the hydraulic cylinder 111.

For reference, the hydraulic unit 131 is an actuator used for general hydraulic pressure control, and related components such as a solenoid valve and a hydraulic pressure supply pump are incorporated therein, and hydraulic control is performed through supply and recovery of oil. Further description and drawings of the unit 131 will be omitted.

That is, the control unit 130 receives an external electrical signal (an electrical input signal transmitted by an operator) and independently raises or lowers the plurality of elevating means 110 according to the electrical signal. Of course, the control unit 130 may raise or lower the plurality of elevating means 110 in a complex manner (that is, two or more elevating means 110 at the same time) according to the electrical signal.

3 is a view showing that the lifter of Fig. 2 is controlled by wire, and Fig. 4 is a view showing that the lifter of Fig. 2 is controlled by radio.

As shown in FIGS. 3 and 4, the control unit may be configured to receive a wired signal or a wireless signal as an external electrical signal.

As illustrated in FIG. 3, the control unit 130 is connected to a separately provided controller c, and can independently or complexly control the elevating means 110 by operating the controller c.

Further, as illustrated in Fig. 4, the control unit 130 may be remotely controlled by a remote controller (RC). That is, when the operator operates the remote controller RC, the remote controller RC transmits a radio signal to the control unit 130, and the control unit 130 controls the elevation means 110 independently Can be controlled in a complex manner. Here, the control unit 130 may include a wireless receiver for receiving a radio signal of the remote controller RC.

5 is a view illustrating a wire sling according to an embodiment of the present invention.

5, the wire sling 200 is connected to the lifting means 110 of the lifter 100 as described above, and the pipe 20 is horizontally Up configuration.

The shackle 210 is provided in the wire sling 200 so that the shackle 210 is positioned higher than the pipe 20 in the present embodiment.

When the shackle 210 is located higher than the pipe 20, interference between the shackle 210 and the pipe 20 is prevented when the wire sling 200 is disassembled and fastened, It can be disassembled or assembled.

 Hereinafter, the operation according to the embodiment of the present invention will be described with reference to Figs. 1, 6A, 6B and 7.

FIG. 1 is a view showing a marine pipe lifting device according to an embodiment of the present invention, FIGS. 6A and 6B are views schematically showing a block entry operation of a pipe by the marine pipe lifting device of FIG. 1, 1 is a view showing a state in which a block entry operation of a pipe is completed by the ship pipe lifting device of FIG.

As shown in FIG. 1, the horizontally raised pipe 20 can be slowly moved toward the inlet of the block 30 through the crane 10 to enter the block 30, which constitutes part of the structure of the ship.

Since the wire sling 200 positioned at the rightmost position is expected to interfere first with the block 30 when the pipe 20 is located on the left side of the block 30 and enters the rightward direction, The height of the elevating means 110 corresponding to the wire sling 200 to release the tension of the wire sling 200 on the right side in the drawing with the pipe 20 slightly inside the block 30 Descend.

When the lifting means 110 located on the rightmost side is lowered to the extent that the tension of the wire sling 200 is completely released, the wire sling 200 is disassembled from the pipe 20, The dismantling operation of the wire sling 200 is not dangerous at all and the operator can easily and conveniently dismantle the wire sling 200. [

6B, when the wire sling 200 interfering with the block 30 is disassembled from the pipe 20, the entire lifter 100 is slowly moved toward the entry direction of the pipe 20 by using the crane 10 . When the pipe 20 moves further into the block 30, the wire sling 200 is fastened again to the right end of the pipe 20. At this time, since the rightmost elevating means 110 has already been lowered, It is easy to fasten the sling 200 again.

6B, when the re-fastening of the wire sling 200 is completed, the elevation means 110 on the right side is raised again so that the wire sling 200 can have the same tension as the other wire sling 200.

Therefore, when all of the wire sling 200 have the same tension, the pipe 20 is further advanced into the block 30, and interference occurs between the wire sling 200 and the block 30 in the course of entry The pipe 20 is moved to a proper position in the block 30 as shown in FIG. 7 while repeating disassembly and fastening of the wire sling 200 as described above.

As shown in FIG. 7, when the entry of the pipe 20 is completed, the pipe 20 is coupled to the block 30 so as to be fixed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. Elements can be substituted and changed, which also belongs to the present invention.

10: crane 11: wire
20: Pipe 30: Block
100: lifter 110: lifting means
111: Hydraulic cylinder 120: Lift beam
130: control unit 131: hydro unit
200: wire sling 210: shackle
C: Controller RC: Remote control

Claims (7)

A plurality of lifting and lowering means independently lifted or lifted are lifter connected to the crane,
And a wire sling connected to the lifting means of the lifter and lifting the pipe horizontally. The method according to claim 1,
The lifter
A lift beam connected to the crane via a wire and having the elevating means installed at a lower portion thereof,
And a control unit installed at one side of the lift beam to control the ascending or descending of the elevating means. 3. The method of claim 2,
The control unit controls the supply of the working medium to the elevating means,
Wherein the lifting means is a cylinder whose length is expanded and contracted by the working medium. The method according to claim 2 or 3,
Wherein the control unit is a hydraulic unit that supplies or recovers a working medium with the cylinder by an external electrical signal. 5. The method of claim 4,
Wherein the control unit is a wired signal or a wireless signal as an external electrical signal. 6. The method of claim 5,
Wherein the control unit is remotely controlled by a remote control. The method according to claim 1,
Wherein the wire sling is provided with a shackle, and the shackle is positioned higher than the pipe.
KR20130097392A 2013-08-16 2013-08-16 Apparatus for lifting pipe for vessel KR20150019929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130097392A KR20150019929A (en) 2013-08-16 2013-08-16 Apparatus for lifting pipe for vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130097392A KR20150019929A (en) 2013-08-16 2013-08-16 Apparatus for lifting pipe for vessel

Publications (1)

Publication Number Publication Date
KR20150019929A true KR20150019929A (en) 2015-02-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR20130097392A KR20150019929A (en) 2013-08-16 2013-08-16 Apparatus for lifting pipe for vessel

Country Status (1)

Country Link
KR (1) KR20150019929A (en)

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