KR20140119359A - Apparatus for guiding canister - Google Patents
Apparatus for guiding canister Download PDFInfo
- Publication number
- KR20140119359A KR20140119359A KR1020130034367A KR20130034367A KR20140119359A KR 20140119359 A KR20140119359 A KR 20140119359A KR 1020130034367 A KR1020130034367 A KR 1020130034367A KR 20130034367 A KR20130034367 A KR 20130034367A KR 20140119359 A KR20140119359 A KR 20140119359A
- Authority
- KR
- South Korea
- Prior art keywords
- guide
- rack supporter
- unit
- rack
- supporter
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
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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
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
- B63H2025/425—Propulsive elements, other than jets, substantially used for steering or dynamic anchoring only, with means for retracting, or otherwise moving to a rest position outside the water flow around the hull
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
Abstract
There is provided a guide device for a canister that guides the rack supporter of the canister during a transition between an operation mode and a maintenance mode.
The guide device of the canister includes an under guide unit mounted on a lower portion of the hull block opposed to the rack supporter and guiding the rack supporter in a downward direction of the hull block in an operating mode, An upper guide unit for guiding the rack supporter in the upward direction of the hull block in the maintenance mode, and a lower guide unit located opposite the rack supporter between the under guide unit and the under guide unit, As shown in FIG.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device for a canister, and more particularly, to a guide device for a canister which realizes the jacking device and guide structure of a canister on the same axis of a rack supporter, .
Generally, ships such as a drill ship are equipped with an azimuth thruster (hereinafter referred to as "thruster"), which is a type of propulsion device for self-propelled navigation.
Depending on the application, the thruster may have an open propeller (eg, a propeller) that does not have a duct, and may be fabricated in the form of a ducted propeller with a duct to maximize thrust during shutdown.
Particularly, in order to drill the drill ship, accurate positioning (dynamic positioning, DP) is necessary against the environmental loads such as wave-drift force, wind external force, and algae external force. Is required. To this end, a number of thrusters are attached to the bow and stern at the drill ship. The amount and direction of the thrust of each thruster are calculated corresponding to the position control algorithm of the ship.
The most widely used method of installing the thruster is the underwater installation method. For example, a thruster moved near a hull through a crane is connected to a cable of a crane and flows into the water. At this time, another cable connected to the hull is connected to the thruster, and the thruster is positioned. Thereafter, the thruster is constrained to the thruster position through the bolting operation.
Since the thrusters of the underwater installation method are located below the water surface, it is very difficult to directly replace them in the water when the thruster breaks down. Therefore, the thrusters can not be repaired by moving them to a dock on a very long distance. This results in a very large loss corresponding to the cost of using the drill rig during the travel / repair period. In order to solve the problem of the underwater installation method, a canister-type installation method has been proposed.
The canister is a kind of container containing various devices and the like necessary for driving the thruster. The canister is installed so as to be movable or fixed in the vertical direction inside the trunk of the ship, and a thruster can be attached to the bottom of the canister have.
Inside the trunk there is a clearance between the trunk and the canister, a work space for maintenance work, and an installation space for installing a jacking device (e.g., a jacking motor). A jacking system is attached to the side or upper part of the canister or the corresponding trunk. The jacking device may include a jacking motor, a rack, and a pinion to play the role of raising the canister in the vertical direction inside the trunk.
On the other hand, in order to maximize the propulsion efficiency, it is possible to move the canister in the vertical direction at the time of sailing, so that the thruster mounted under the canister can be positioned inside the hull, that is, inside the trunk. Thus, the thruster entering the interior of the trunk can be prevented from being used for navigation.
Such a thruster may have an operation mode and a maintenance mode. The operating mode allows the thrust to be placed outside the hull to be used for general position control, and the maintenance mode allows the thrusters to be lifted up to a certain height in the repair space and placed inside the hull for repair.
To raise and lower the canister, a rack and pinion gear connected to the jacking motor of the aforementioned jacking device is used. Here, the rack supporter including the rack gear is attached to the canister, and the pinion gear meshed with the rack gear is installed on the side of the hull. A separate sliding rail is provided on the vertical side of the canister to which the rack supporter is attached.
However, in the case of this conventional technique, since the jacking device and the sliding rail configuration are operated separately, the guide structure of the sliding rail must be manufactured within a manufacturing tolerance obtained by a back lash between the pinion gear and the rack gear of the jacking device Smooth operation of the canister can be ensured. Accordingly, in order to manufacture a guide structure for lifting and lowering the canister in the past, a technique for controlling excessive welding deformation along with precision machining has been demanded.
Embodiments of the present invention are intended to provide a guide device for a canister in which a jacking device and a guide structure are mounted on a shaft of a rack supporter to eliminate the difficulty of manufacture and to raise and lower the canister smoothly.
According to an aspect of the present invention, there is provided a guide device for a canister that guides a rack supporter of a canister when converting between an operating mode and a maintenance mode, the guide device being mounted on a lower portion of a hull block, which is opposed to the rack supporter, An under-guide unit for guiding the hull block downward; An upper guide unit mounted on an upper portion of a hull block opposed to the rack supporter and guiding the rack supporter in an upward direction of the hull block in the maintenance mode; And a jacking unit positioned between the under-guide unit and the under-guide unit so as to face the rack supporter and moving the rack supporter upward or downward according to the type of the mode.
At this time, the under-guide unit and the upper guide unit include a guide bracket mounted on the hull block; A front guide pad provided on the guide bracket so as to face a front portion of the rack supporter; And a side guide pad provided on the guide bracket so as to be opposed to both side portions of the rack supporter.
In addition, the jacking unit may include a jacking guide pad positioned to face the front of the rack supporter; And a pinion gear which is positioned opposite to both side portions of the rack supporter and meshes with the rack gear of the rack supporter.
The rack supporter may be guided by the under guiding unit and the jacking unit upon switching to the operation mode, and guided by the upper guide unit and the jacking unit upon switching to the maintenance mode.
In addition, the maximum distance A between the upper guide unit and the under-guide unit may be at least shorter than the maximum length B of the rack supporter.
The apparatus may further include a middle guide unit disposed on the same axis between the jacking unit and the under-guide unit.
In addition, the guide bracket may include a support frame fixed to the hull block, a front frame mounted to the support frame so as to face the front portion of the rack supporter, the front frame having the front guide pad attached thereto; And a side frame vertically protruding from both sides of the support frame so as to be opposed to both sides of the rack supporter and having the side guide pad attached thereto.
In addition, a tapered surface for guiding the initial entry of the rack supporter may be formed on the top and bottom of the front guide pad and the side guide pad.
A leveling pad for fine tolerance adjustment can be selectively interposed between the front guide pad and the front frame or between the side guide pad and the side frame.
The tapered surface may include a first tapered surface inclined at an entrance of the rack supporter and a second tapered surface continuously inclined to the first tapered surface to have a smaller gradient than the first tapered surface The guide device of the canister.
Embodiments of the present invention have the advantage that jacking and guiding of the canister on the same axis as the rack supporter can reduce the manufacturing cost and work productivity compared to the case where the jacking and guide of the canister are implemented at different positions have.
Further, the embodiments of the present invention have an advantage in that manufacturing tolerances between the rack supporter and the guide unit can be finely adjusted by selectively using the leveling pads.
In addition, the embodiments of the present invention are advantageous in that the canister can be smoothly adhered by forming a tapered surface on the upper and lower sides of the front guide pad and the side guide pad.
1 is a plan view showing a guide device of a canister according to an embodiment of the present invention.
2 is a state diagram showing a guide device of a canister according to an embodiment of the present invention in an operation mode.
3 is a state diagram illustrating a guide device of a canister according to an embodiment of the present invention in a maintenance mode.
4 is a state diagram illustrating a guide device of a canister according to an embodiment of the present invention when switching between an operation mode and a maintenance mode.
5 is a state diagram showing a guide device of a canister according to a modification of the embodiment.
6 is a perspective view illustrating a guide unit of a guide device of a canister according to an embodiment of the present invention.
7 is a view showing a tapered surface of a guide device according to an embodiment of the present invention.
8 is a configuration diagram showing a tapered surface of a guide device according to a modification of this embodiment.
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.
FIG. 1 is a plan view showing a guide device of a canister according to an embodiment of the present invention, FIG. 2 is a state diagram showing a guide device of a canister according to an embodiment of the present invention in an operation mode, FIG. 4 is a state diagram showing a guide device of a canister according to an embodiment of the present invention when switching between an operation mode and a maintenance mode. FIG. 4 is a state diagram showing a guide device of a canister according to an embodiment of the present invention.
1 to 4, a guide device for a canister according to an embodiment of the present invention includes a plurality of
More specifically, the under-
The under-
The
The
The
However, the
The maximum distance A between the
The jacking
The jacking
2, when the
3, when the
4, when the operation mode is switched to the maintenance mode or the maintenance mode is switched to the operation mode, the
When the
5 is a state diagram showing a guide device of a canister according to a modification of the embodiment.
As shown in FIG. 5, the
The
FIG. 6 is a perspective view showing a guide unit of a guide device of a canister according to an embodiment of the present invention, and FIG. 7 is a diagram showing a tapered surface of a guide device according to an embodiment of the present invention.
6, the
For example, the
A
A
7, the
Thus, when the
In the present embodiment, the first tapered surface 101a is formed to be inclined at a 1/4 gradient, and the second
8 is a configuration diagram showing a tapered surface of a guide device according to a modification of this embodiment.
8, the
As described above, according to the present invention, the jacking and guide of the canister can be implemented on the same axis as the rack supporter, the manufacturing cost can be reduced and the work productivity can be improved compared with the case where the jacking and guide of the canister are implemented at different positions And the leveling pad can be selectively used to finely control the manufacturing tolerance between the rack supporter and the guide unit and a tapered surface is formed on the upper and lower sides of the front guide pad and the side guide pad, .
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 exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. 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.
100a: under
110: front guide pad 120: lateral guide pad
130: guide bracket 131: support frame
132: front frame 133: side frame
140: Leveling pad 200: Jacking unit
210: a jacking guide pad 220: a pinion gear
300: Canister 310: Rack supporter
311: Rack gear 400: Hull block
Claims (10)
An under-guide unit mounted on a lower portion of a hull block opposed to the rack supporter and guiding the rack supporter in a downward direction of the hull block in the operating mode;
An upper guide unit mounted on an upper portion of a hull block opposed to the rack supporter and guiding the rack supporter in an upward direction of the hull block in the maintenance mode; And
And a jacking unit that is positioned between the under-guide unit and the under-guide unit so as to face the rack supporter and moves the rack supporter upward or downward according to the type of the mode.
The under-guide unit and the upper guide unit may include:
A guide bracket mounted on the hull block;
A front guide pad provided on the guide bracket so as to face a front portion of the rack supporter; And
And a side guide pad provided on the guide bracket so as to be opposed to both sides of the rack supporter.
The jacking unit
A jacking guide pad located opposite to a front portion of the rack supporter; And
And a pinion gear which is positioned opposite to both side portions of the rack supporter and engages with the rack gear of the rack supporter.
The rack supporter
Guided by the under guiding unit and the jacking unit upon switching to the operating mode, and guided by the upper guide unit and the jacking unit upon switching to the maintenance mode.
Wherein a maximum distance (A) between the upper guide unit and the under-guide unit is at least shorter than a maximum length (B) of the rack supporter.
Further comprising a middle guide unit disposed on the same axis between the jacking unit and the under-guide unit.
The guide bracket
A support frame fixed to the hull block;
A front frame mounted to the support frame so as to face a front portion of the rack supporter and to which the front guide pad is attached; And
And a side frame vertically protruding from opposite sides of the support frame so as to form opposite pairs of opposite sides of the rack supporter and having the side guide pads attached thereto.
Wherein a tapered surface for guiding an initial entry of the rack supporter is formed on upper and lower portions of the front guide pad and the side guide pad.
Wherein a leveling pad for fine tolerance adjustment is selectively interposed between the front guide pad and the front frame or between the lateral guide pad and the side frame.
The tapered surface
A first tapered surface inclined to an entrance of the rack supporter and a second tapered surface inclined continuously to the first tapered surface to have a smaller gradient than the first tapered surface.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130034367A KR101454390B1 (en) | 2013-03-29 | 2013-03-29 | Apparatus for guiding canister |
EP14774506.1A EP2979972B1 (en) | 2013-03-29 | 2014-03-28 | Canister type thruster and installation method thereof |
SG11201508130YA SG11201508130YA (en) | 2013-03-29 | 2014-03-28 | Canister type thrustor and installation method thereof |
BR112015025007-6A BR112015025007B1 (en) | 2013-03-29 | 2014-03-28 | BOX TYPE IMPELER MOUNTED IN A COMPARTMENT OF A SHIP. |
CN201480018321.2A CN105263799B (en) | 2013-03-29 | 2014-03-28 | Pot type propeller and its method to set up |
PCT/KR2014/002687 WO2014157999A1 (en) | 2013-03-29 | 2014-03-28 | Canister type thrustor and installation method thereof |
US14/779,963 US9834289B2 (en) | 2013-03-29 | 2014-03-28 | Canister type thruster and installation method thereof |
US15/456,474 US9988131B2 (en) | 2013-03-29 | 2017-03-10 | Canister type thruster and installation method thereof |
US15/456,478 US10300997B2 (en) | 2013-03-29 | 2017-03-10 | Canister type thruster and installation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130034367A KR101454390B1 (en) | 2013-03-29 | 2013-03-29 | Apparatus for guiding canister |
Publications (2)
Publication Number | Publication Date |
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KR20140119359A true KR20140119359A (en) | 2014-10-10 |
KR101454390B1 KR101454390B1 (en) | 2014-10-24 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020130034367A KR101454390B1 (en) | 2013-03-29 | 2013-03-29 | Apparatus for guiding canister |
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Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20100074397A (en) * | 2008-12-24 | 2010-07-02 | 현대중공업 주식회사 | Drillship thruster guiding system |
KR101126326B1 (en) * | 2009-11-18 | 2012-03-22 | (주)신화마린 | A telescoping pier for facilities with buoyancy function |
KR20110139545A (en) * | 2010-06-23 | 2011-12-29 | 현대중공업 주식회사 | Canister of drillship having rack gear and sliding rail structure |
KR101666024B1 (en) * | 2010-06-23 | 2016-10-24 | 현대중공업 주식회사 | Guide Device for loading of canister |
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KR101454390B1 (en) | 2014-10-24 |
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