KR101835052B1 - Floating crane including movable boom - Google Patents

Floating crane including movable boom Download PDF

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Publication number
KR101835052B1
KR101835052B1 KR1020150166177A KR20150166177A KR101835052B1 KR 101835052 B1 KR101835052 B1 KR 101835052B1 KR 1020150166177 A KR1020150166177 A KR 1020150166177A KR 20150166177 A KR20150166177 A KR 20150166177A KR 101835052 B1 KR101835052 B1 KR 101835052B1
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KR
South Korea
Prior art keywords
boom
wheel
barge
guide
driving
Prior art date
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KR1020150166177A
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Korean (ko)
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KR20170061318A (en
Inventor
현영찬
Original Assignee
삼성중공업 주식회사
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Priority to KR1020150166177A priority Critical patent/KR101835052B1/en
Publication of KR20170061318A publication Critical patent/KR20170061318A/en
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Publication of KR101835052B1 publication Critical patent/KR101835052B1/en

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    • 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
    • B66C23/62—Constructional features or details

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

Abstract

The present invention relates to a marine crane capable of moving a boom. Specifically, according to an embodiment of the present invention, there is provided a boom comprising: a boom to which a lifting rope for lifting a heavy object is connected; A bogie portion provided on an upper surface of the barge and movably supporting the boom on the barge; And a connecting part connecting the boom to the boom.

Description

{FLOATING CRANE INCLUDING MOVABLE BOOM}

The present invention relates to a marine crane capable of moving a boom.

In general, the shipbuilding industry, which consists of designing, building and delivering, starting with the order of the ship, determines the survival and success of the industry. An important factor in determining such profitability is productivity in the process of ship construction, and all shipbuilding industries compete for productivity improvement.

In order to improve the drying capability of vessels, various shipbuilding facilities are required, including large scale shipyards, efficient planned production plans, and marine cranes to support new drying methods.

Conventional marine cranes are very large to handle hundreds to thousands of tons of heavy goods at the shipyard. In addition, the marine crane lifts heavy objects by using seawater having a higher specific gravity than ordinary water as a supporting base. Most of the marine crane is placed on an inclined hull of a general barge and is equipped with a crane boom to be manufactured in an undulation type have.

The principle of lifting a heavy object using such a floating crane is such that the free end of the lifting rope extending downward from the upper portion of the boom is fixed to the heavy object and the lifting rope is lifted from the upper portion of the boom to float the heavy object . In addition, the boom is stably held by the wire rope having one end connected to the fixed frame disposed on the deck of the barge and the other end connected to the upper portion of the boom.

However, in the conventional marine cranes, the position of the boom is fixed. Therefore, in order to transport the heavy object to a relatively long distance, the heavy object has to be lifted to the air and the barge has to be drawn to the target point. As a result, there is a problem that the fatigue breakdown can proceed due to the load acting on the structure of the boom, and the lifetime of the boom can be shortened and the structural stability can be hindered.

Further, there is a problem that maintenance and repair of the boom is not easy as the position of the boom is fixed.

KR 2015-0005193 A

The embodiments of the present invention have been made to solve the problems of the prior art, and it is possible to mount a heavy object on a deck of a barge when a heavy object is transported at a long distance, thereby securing the structural stability without significantly shortening the life of the boom. And it is an object of the present invention to provide a marine crane capable of easily maintaining and repairing a boom.

According to an aspect of the present invention, there is provided a boom comprising: a boom to which a lifting rope for lifting a heavy object is connected; A bogie portion provided on an upper surface of the barge and movably supporting the boom on the barge; And a connection part connecting the boom to the boom, wherein the boom is movable.

Further, it is possible to provide a floating crane capable of moving the boom further including a guide portion for guiding the movement of the bogie portion.

Further, the braking unit may include a wheel provided to be rotatably driven, and the rotation driving of the wheel may be provided with a floating crane capable of moving the boom guided by the guide unit.

In addition, a guide groove for receiving the wheel is formed on the upper surface of the guide portion. The guide portion is provided on a bottom surface of the guide groove, and the movement of the boom including the rail, which is in contact with the wheel, Possible marine cranes may be provided.

Further, the bogie portion may include: a support plate connected to a lower surface of the connection portion; A wheel provided rotatably driveable; And a driving body connecting the wheel to the support plate.

The driving body may further include: a driving device for transmitting a driving force to the wheel; And a braking device for braking the wheel, can be provided.

Further, a plurality of the wheels may be provided, at least a part of the plurality of wheels may be connected to the driving device, and at least part of the plurality of wheels may be connected to the brake device, have.

In addition, a marine crane capable of moving the boom may be provided, wherein the driving device is connected to half of the plurality of wheels and the brake device is connected to the other half of the plurality of wheels.

According to the embodiments of the present invention, operation can be performed without greatly deteriorating the structural stability of the boom compared to conventional marine cranes, and maintenance and repair of the boom can be easily performed.

Further, there is an effect that the range in which the boom can lift the heavy object can be wider than the conventional one.

1 is a side view of a marine crane according to an embodiment of the present invention.
Fig. 2 is a plan view of the overhead crane of Fig. 1 viewed from above. Fig.
FIG. 3 is a view showing a connecting portion between a boom and a truck of the overhead crane of FIG. 1. FIG.
Fig. 4 is an exploded view for explaining the structure of a bulkhead of the overhead crane of Fig. 1. Fig.
5 is an enlarged view of the bogie portion of Fig.
6 is a view for explaining the process of inserting the fixing pin so that the wheel of FIG. 1 is not rotated.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

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

1, a marine crane 10 according to an embodiment of the present invention includes a barge 12 floated on the sea, a fixed frame 14 provided on the barge 12, And a boom 100 to which the other end of the wire rope 16 is connected and connected to the stationary frame 14 through the wire rope 16.

A plurality of lifting ropes 18 are vertically movably connected to the upper portion of the boom 100 so that the weight G fixed to the free end of the lifting rope 18 can be lifted through a device such as a winch . Such a boom 100 can be formed as a truss structure in order to stably bear the load of the heavy object G. [

The boom 100 can also be configured to be movable between the first position 100a and the second position 100b on the barge line 12 and for this purpose the following carriage is provided on the upper surface of the barge line 12 . When the boom 100 moves between the first position 100a and the second position 100b, the wire rope 16 wound by the not-shown winding means of the stationary frame 14 moves from the stationary frame 14 The extension length from the fixed frame 14 can be adjusted by winding the wire rope 16 around the fixed frame 14 and winding the wire rope 16 around the fixed frame 14. In addition, even when the boom 100 is moved, a constant tension can be maintained have.

One such boom 100 may be provided, or a plurality of such boom 100 may be provided. In this embodiment, two booms 100 are provided, but the spirit of the present invention is not limited thereto.

Hereinafter, a specific configuration of the floating crane 10 capable of adjusting the position of the boom 100 will be described with reference to Figs. 2 to 6. Fig. FIG. 2 is a top plan view of the floating crane of FIG. 1, FIG. 3 is a view showing a connecting portion between a boom and a bulkhead of the floating crane of FIG. 1, FIG. 5 is an enlarged view of the bogie portion of FIG. 1, and FIG. 6 is a view illustrating a process of inserting the fixing pin so that the wheel of FIG. 1 is not rotated.

2 to 6, the floating crane 10 includes a bogie portion 200 provided on the upper surface of the barge 12 and movably supporting the boom 100 on the barge 12, a bogie portion 200, A connecting part 300 connecting the boom 100 and a guide part 400 guiding the movement of the bogie 200.

The bogie unit 200 includes a support plate 210 connected to a lower surface of the connection unit 300, a wheel 220 provided to be rotatably driven, and a driving body 230 connecting the support plate 210 and the wheel 220 ). Two bogies 200 may be provided for one boom 100 and may be installed on both sides of the boom 100 in parallel with each other.

The support plate 210 may be made of a rigid material such as steel and may be connected to a lower surface of a driving body 230 to which the wheel 220 is rotatably connected. The support plate 210 may have a width narrower than the width of the guide groove 410 formed in the guide portion 400 so that the support plate 210 can be inserted into the guide groove. Accordingly, the boom 100 can be stably guided in the guide groove 410 when the boom 100 is moved. However, the spirit of the present invention is not limited to this, and in some cases, the support plate 210 may have a larger width and be arranged above the guide groove 410.

The wheel 220 is connected to the driving body 230 so as to be rotationally driven so that the boom 100 can be moved on the barge 12 and the guide groove 400 of the guide part 400 provided on the upper deck of the barge 12 And can be moved while being guided by the rail 412 in contact with the rail 412 provided in the rail 410. Also, a plurality of wheels 220 may be provided for one driving body 230, and the wheels 220 may be arranged in a line along the extending direction of the long side of the support plate 210. The wheel 220 may include at least one fixing hole 222 and the fixing pin P may be simultaneously inserted into the fixing hole 234 formed in the fixing hole 222 and the driving body 230. [ The rotation of the wheel can be restricted.

The driving body 230 has a support plate 210 fixed on an upper surface thereof and a wheel 220 rotatably connected to both sides thereof. To this end, a driving device 232 for transmitting a driving force to the wheel 220 and a braking device 234 for braking the wheel 220 being rotated can be included.

The driving unit 232 may be, for example, a motor driven by electric energy, an engine driven by consuming fuel, or the like, and may be connected to transmit rotational force to at least a part of the plurality of wheels 220. For this purpose, a suitable gear connection structure can be applied, and such a gear connection structure can be derived from common technical knowledge, so a detailed description will be omitted. Further, the braking device 234 may be provided for at least a part of the wheels 220 as an apparatus capable of selectively stopping the wheel 220 being rotated using the frictional force.

The plurality of wheels 220 provided on the bogie unit 200 are connected to the driving unit 232 and the braking unit 234 so that the wheel 220 is rotated to move the boom 100, It is possible to stop the wheel 220 and set the position of the boom 100. [ At this time, the driving operation of the wheel 220 can be controlled by a control unit (not shown).

Further, the drive device 232 may be connected to all of the plurality of wheels 220, or may be connected only to a part of the plurality of wheels 220. [ Likewise, the braking device 234 may be connected to all of the plurality of wheels 220, or may be connected only to a part thereof. For example, one half of the plurality of wheels 220 may be configured to be coupled to drive device 232 and the other half to brake device 234.

The connecting portion 300 may be connected to the boom 100 so that the boom 100 can be pivoted, and the pivoting operation of the boom 100 may be controlled at this time. The connection portion 300 is connected to the upper surface of the support plate 210 of the bogie portion 200 so that the boom 100 can be supported by the bogie portion 200. At this time, the connection portion 300 and the support plate 210 may be mechanically fastened by bolts, welded or otherwise connected by various well-known technical means.

The guide unit 400 may be provided for each boom 100 and may be provided in the same number as the booms 100 when the plurality of booms 100 are provided. The guide unit 400 guides the rotation of the wheel 220 when the boom 100 is moved.

More specifically, the guide unit 400 is installed on the deck of the barge 12, and a guide groove 410 is formed at a position corresponding to the bogie 200 on both sides of the boom 100, . The guide groove 410 may extend between the first position 100a and the second position 100b of the predetermined boom 100 and may include a first position 100a and a second position 100b, May be formed. Thereby, it is possible to stably move while being guided by the guide portion 400 when the boom 100 moves between the first position 100a and the second position 100b.

A rail 412 is provided on the bottom surface of the guide groove 410 and the rail 412 may be disposed at a position corresponding to the wheel 220 provided on both sides of the driving body 230. In addition, the rail 412 may extend from the first position 100a to the second position 100b along the extending direction of the guide groove 410. In addition, the wheel 220 may have a shape in which the flange is thinned on both sides in the longitudinal direction from the outside to the inside along the width direction, and the rail 412 is configured to contact the flanges formed on both sides It is possible to stably drive the wheel 220 on the rail 412 without detaching it.

Hereinafter, the operation and effect of the marine crane 10 according to the present embodiment having the above-described structure will be described.

The barge line 12 can be lifted to a proper position by moving the barge 12 to a nearby sea area of the heavy object G when the floating crane 10 transports the heavy material G floated on the sea. The lifting rope 18 is lowered at a position accessible from the boom 100 to the heavy object G and the free end of the lifting rope 18 can be fixed to the heavy object G. In this state, Lt; / RTI >

The boom 100 can be moved by driving the drive unit 232 while the weight G is lifted to drive the wheel 220. For example, the boom 100 can be moved from the first position 100a to the second position 100b ). At this time, the boom 100 can move to a position where the heavy object G can be loaded on the deck of the barge 12, and stops the rotation of the wheel 220 with the braking device 234 when it is positioned at the proper position The rotation of the wheel 220 can be prevented by inserting the fixing pin P into the fixing hole 222 and the fixing groove 236 at the same time. When the boom 100 is positioned at such a proper position, the load applied to the boom 100 can be removed by mounting the heavy object G on the deck of the barge 12.

After lifting the barge line to the target point in a state in which the heavy object G is loaded on the barge line 12, the heavy object G can be lifted and moved to the target point in the reverse order of the above procedure. Thus, the work for transferring the heavy object G can be completed.

According to the above-described floating crane 10 according to the present embodiment, it is possible to operate the boom 100 without hurting the structural stability of the boom 100 to a great extent as compared with the conventional floating crane, and to maintain and repair the boom 100 easily , There is an effect that the range in which the boom 100 can lift the heavy object can be widened as compared with the conventional one.

While the present invention has been described with reference to specific embodiments thereof, it will be understood by those of ordinary skill 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. . Skilled artisans may implement a pattern of features that are not described in a combinatorial and / or permutational manner with the disclosed embodiments, but this is not to depart from the scope of the present invention. It will be apparent to those skilled in the art that various changes and modifications may be readily made without departing from the spirit and scope of the invention as defined by the appended claims.

10: Marine crane 100: Boom
200: Batch unit 300:
400: guide portion

Claims (6)

A boom to which lifting ropes for lifting heavy objects are connected;
A bogie portion provided on an upper surface of the barge and movably supporting the boom on the barge;
A connecting portion connecting the bogie portion and the boom; And
And a guiding part for guiding the movement of the bogie part,
Wherein,
A support plate connected to a lower surface of the connection portion;
A driving body connected to a lower surface of the support plate and having a fixing groove formed therein;
A wheel rotatably provided on the driving body and having a flange formed on both sides so that a vertical cross-section thereof becomes thinner from the outer side toward the inner side along the width direction, and at least one fixing hole is formed through the wheel; And
And a fixing pin selectively inserted into the fixing hole and the fixing groove to restrict rotation of the wheel,
Wherein the guide portion includes a rail that contacts the wheel between the flanges formed on both sides of the wheel to guide the wheel,
Wherein the fixing pin is inserted into the fixing hole and the fixing groove after movement of the boom is completed to allow movement of the boom for restricting the rotation of the wheel. delete The method according to claim 1,
And the rotation driving of the wheel is capable of moving the boom guided by the guide portion. The method of claim 3,
A guide groove for receiving the wheel is formed on an upper surface of the guide portion,
The rail
And a boom provided on a bottom surface of the guide groove. delete The method according to claim 1,
The driving body includes:
A driving device for transmitting a driving force to the wheel; And
And a braking device for braking the wheel.
KR1020150166177A 2015-11-26 2015-11-26 Floating crane including movable boom KR101835052B1 (en)

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KR1020150166177A KR101835052B1 (en) 2015-11-26 2015-11-26 Floating crane including movable boom

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KR1020150166177A KR101835052B1 (en) 2015-11-26 2015-11-26 Floating crane including movable boom

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KR101835052B1 true KR101835052B1 (en) 2018-03-08

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108639977A (en) * 2018-03-30 2018-10-12 南通振华重型装备制造有限公司 A kind of 2000t crane barges crane amplitude variation steel wire rope pre-tightens and method of adjustment
KR102415564B1 (en) * 2018-08-17 2022-06-30 삼성중공업 주식회사 A floating crane

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010195541A (en) 2009-02-26 2010-09-09 Yorigami Maritime Construction Co Ltd Floating crane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010195541A (en) 2009-02-26 2010-09-09 Yorigami Maritime Construction Co Ltd Floating crane

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