KR101599441B1 - Bearing apparatus of turret - Google Patents

Bearing apparatus of turret Download PDF

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Publication number
KR101599441B1
KR101599441B1 KR1020140016582A KR20140016582A KR101599441B1 KR 101599441 B1 KR101599441 B1 KR 101599441B1 KR 1020140016582 A KR1020140016582 A KR 1020140016582A KR 20140016582 A KR20140016582 A KR 20140016582A KR 101599441 B1 KR101599441 B1 KR 101599441B1
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KR
South Korea
Prior art keywords
turret
driving
bearing
gear
supporting
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Application number
KR1020140016582A
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Korean (ko)
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KR20150095363A (en
Inventor
김지남
구본국
구창현
김진혁
김현석
박석식
유영목
유영호
유정모
Original Assignee
삼성중공업 주식회사
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Priority to KR1020140016582A priority Critical patent/KR101599441B1/en
Publication of KR20150095363A publication Critical patent/KR20150095363A/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 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/507—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers with mooring turrets

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

A turret bearing arrangement is disclosed which is capable of selectively rotating the turret while supporting the rails of the turret in the hull.
The bearing device of the turret may be installed to face the guide rails of the turret, and may include a drive bearing for contacting the guide rails to rotate the turret, and a support bearing for supporting the guide rails.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing device for a turret,

The present invention relates to a bearing device for a turret, and more particularly to a bearing device for a turret capable of supporting and rotating the turret.

Floating offshore structures such as drilling rigs or FPSOs (floating oil production warehousing and storage facilities) can be stored in turrets, such as oil, natural gas, etc., .

The turret may be fixed to a subsea well platform by a chain or the like to moor the floating structure, wherein the floating structure can be relatively rotated about the turret as a central axis.

For example, in the case of drilling or mining crude oil or gas, even if the marine vessel is driven by wind, waves or algae, the vessel can freely rotate around the turret as a central axis, And the like.

The turret can usually be mounted in a vertical opening or moon pool provided at one end of the ship, usually at the forefront. And the turret can be rotated by sliding contact through the hull and the bearing. In one example, the turret may be supported by an upper vertical bearing, an upper horizontal bearing, and a lower horizontal bearing.

In order to mount the turret on the hull and rotate it, it is necessary to verify the rotation function of the turret before mounting the turret on the hull. In order to verify the rotating function of the turret, conventionally, there has been proposed a method of rotating the turret by using a rotating device such as a hydraulic cylinder after placing the turret on the rotating member.

However, according to this conventional technique, it takes a long time to rotate the turret one time, because the angle at which the turret rotates when the hydraulic cylinder is operated once is very small. Consequently, the turret rotates to verify the turret rotation function The test time can be increased.

Patent Document: United States Patent Application Publication No. US2003 / 0205188 (published on Jun. 11, 2003)

Embodiments of the present invention provide a bearing device for a turret capable of implementing a rotating test of a turret.

According to an aspect of the present invention, there is provided a bearing apparatus for a turret for supporting a turret in a hull, comprising: a drive bearing installed to face a guide rail of the turret and contacting the guide rail to rotate the turret; And a support bearing for supporting the guide rail.

At this time, the support bearing and the drive bearing may be arranged alternately along the inner circumference of the door frame provided on the hull.

Further, the drive bearing includes a drive wheel for supporting the guide rail; A driving supporter in which the driving wheel is rotatably mounted via a rotating shaft; And a drive unit including a rotary gear connected to one end of the rotary shaft, a drive motor for providing a drive force to the rotary shaft, and a gear box for transmitting the drive force of the drive motor to the rotary gear .

The driving bearing may further include a braking unit connected to the other end of the rotating shaft, and a braking unit including a brake for selectively braking the braking wheel.

Further, the gear box includes a driving gear interlocked with a driving shaft of the driving motor; At least one driven gear rotating around the driving gear; And a ring gear in which a first thread engaging with the driven gear is formed on an inner diameter surface and a second thread engaged with a rotating gear of the rotating shaft is formed on an outer diameter surface.

Further, the support bearing includes a support wheel for supporting the guide rail; And a mounting supporter in which the supporting wheel is rotatably mounted via a supporting shaft.

Further, the support bearing may include a power generating unit that generates rotational energy when the support shaft rotates and generates electrical energy.

Embodiments of the present invention can quickly and easily perform a rotating test of a turret by selectively rotating the turret while supporting the guide rails of the turret in the hull so that a separate rotating testing device for rotating the turret There is an advantage that it is unnecessary.

Further, the embodiments of the present invention have an advantage in that, when the hull is rotated with the turret as a rotation axis, electric power that can be used in the hull can be produced by using the generated rotational force.

1 is a block diagram showing a turret having a bearing device of a turret according to a first embodiment of the present invention.
2 is a plan view showing the arrangement of the bearing device of the turret according to the first embodiment of the present invention.
Fig. 3 is an enlarged view showing the "A" portion of Fig. 1 on an enlarged scale.
4 is a cross-sectional side view of the "CC"
Fig. 5 is an enlarged view showing the "B" portion of Fig.
6 is a plan view showing the arrangement of the bearing device of the turret according to the second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description of the present invention, a 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.

The turret applied in the following embodiments can be defined as a structure connecting the floating ocean structure and the riser, and the floating floating structure can be defined as a drill ship, a floating production, storage, and offloading unit And a hull having a turret.

The turret in which this embodiment is used can be applied to special lines such as drill rigs or FPSO, but the turret can be applied to other types of ships other than the special ship, considering that the floating marine structure includes the range of the vessel.

FIG. 2 is a plan view showing the arrangement of a bearing device of a turret according to a first embodiment of the present invention. FIG. 2 is a cross- , And Fig. 3 is an enlarged view showing the "A" portion of Fig. 1 on an enlarged scale.

1 to 3, the bearing device of the turret according to the first embodiment of the present invention can selectively rotate the turret 20 while rotatably supporting the turret 20 in the hull .

Here, the turret 20 can be connected to a mining platform (not shown) of a submarine through a chain to moor the hull, and by a bearing structure that allows the hull to rotate by using the turret 20 as a rotation axis, or to a moon pool.

The turret 20 is coupled to the turret 20 at the same time as the turret 20 and the hull. In order to support the axial load and the horizontal load, the upper vertical bearing 31 An upper vertical bearing and an upper horizontal bearing may be provided and a lower horizontal bearing may be provided at a lower portion of the door. In this embodiment, the bearing device may be an upper vertical bearing device 31 that supports the rails provided on the top of the turret 20, more specifically on the turret 20, in the hull of the hull.

Specifically, the bearing device of the turret may include a drive bearing 100 capable of rotating the turret 20 in the hull, and a support bearing 200 for supporting the turret 20.

The drive bearing 100 may be installed in the hull opposite the guide rail 310 of the turret 20. [ Here, the guide rails 310 may be disposed in the form of a circle extending along the upper circumference of the turret 20. When the hull is relatively rotated about the turret 20 as a center axis, Thereby providing a path through which the bearing 200 moves relative to each other.

The drive bearing 100 may contact the guide rail 310 to rotate the turret 20. [

The driving bearing 100 may include a driving wheel 110, a driving supporter 120, and a driving unit 130. The driving wheel 110 can be rotatably mounted on the driving supporter 120 through the rotating shaft 121 and rotated by the driving force of the driving unit 130 to rotate the guide rail 310. The driving supporter 120 is a bracket for supporting both ends of the rotating shaft 121 and may be disposed in a plurality of circles in the form of a circle opposed to the guide rails 310.

The driving unit 130 may provide a driving force to the driving wheel 110 to rotate the turret 20 through the guide rail 310. The drive unit 130 includes a rotary gear 131 (see FIG. 4) provided at one end of the rotary shaft 121, a drive motor 132 for providing a drive force for rotating the rotary gear 131, And a gear box 133 for transmitting the driving force of the driving gear 132 to the rotating gear 131.

Fig. 4 is a side cross-sectional view cut along the "C-C"

3 and 4, the gear box 133 may decelerate the rotational force provided by the driving shaft 132a of the driving motor 132 to transmit the reduced rotational force to the rotating shaft 121. [ For example, the gear box 133 includes a driving gear 133a that is driven and connected to the driving shaft 132a of the driving motor 132, a driving gear 133a that is radially disposed around the driving gear 133a, The teeth are engaged with the driven gear 133b through a plurality of driven gears 133b and a first screw thread 133d formed on the inner diameter surface of the driven gear 133b and through a second screw thread 133e formed on the outer surface, And a ring gear 133c driven and connected by a drive belt 134 and a drive belt 134. [

Thus, when the drive shaft 132a of the drive motor 132 is rotated, the drive gear 133a is rotated by the rotation of the drive shaft 132a, and when the driven gear 133b is rotated with the drive gear 133a, The ring gear 133c is engaged with the driven gear 133b and the rotating gear 131 of the rotating shaft 121 is rotated by receiving the rotational force of the ring gear 133c through the driving belt 134. [ At this time, the rotational force of the driving motor 132 can be reduced at a certain rate while passing through the gear box 133. This reduction ratio is determined by the number of the driven gears 133b and the number of the first threads 133d of the ring gear 133c, And the gear difference of the second screw thread 133e.

The driving unit 130 described above can perform the rotating test of the turret 20 by rotating the turret 20 by operating the driving motor 132 while the turret 20 is being dried. Therefore, according to the present embodiment, a separate testing device for rotating the turret 20 may be dispensed with for the conventional testing of the turret 20.

The driving unit 130 is driven and connected to the driving bearing 100. However, when the driving force of the driving unit 130 is not required, the driving unit 130 is separated from the driving bearing 100 The drive bearing 100 can be used as a function of simply supporting the guide rails 110.

The drive bearing 100 may include a braking unit (not shown) for braking the drive wheel 110.

The braking unit may include a brake for selectively braking a braking wheel (not shown) connected to the rotating shaft 121. Here, since a conventional hydraulic brake or a pneumatic brake structure is applied to the brake structure for braking the rotary shaft 121, a detailed description of the brake structure will be omitted.

Fig. 5 is an enlarged view showing the "B" portion of Fig.

5, the support bearing 200 includes a support wheel 210 for supporting the guide rail 310, and a mounting supporter 210 on which the support wheel 210 is rotatably mounted via the support shaft 221. [ (Not shown).

The support bearing 200 is installed on the hull so as to face the guide rail 310. A plurality of support bearings 200 are provided on the inner periphery of the door frame provided on the hull with respect to the center axis C of the turret 20, (See FIG. 2). In the present embodiment, four drive bearings 100 are arranged at intervals of 90 degrees and seven support bearings 200 are continuously arranged between the drive bearings 100. However, the support bearings 200 and the drive bearings 100 can be variously changed.

For example, the support bearings 200 and the drive bearings 100 may be alternately disposed on the inner periphery of the door frame, or two support bearings and one drive bearing may be successively disposed along the inner periphery of the door frame, The bearing and one drive bearing can be arranged continuously. However, it is preferable that the support bearings 200 and the drive bearings 100 are arranged symmetrically in consideration of the balance of the axial load applied by the turret 20. [

6 is a plan view showing the arrangement of the bearing device of the turret according to the second embodiment of the present invention.

6, in the bearing apparatus of the turret according to the second embodiment of the present invention, the support bearing 200 may include the power generation unit 400. [

The power generation unit 400 is capable of generating electrical energy usable in the hull by receiving a rotational force during rotation of the support shaft 221 through a generator motor (not shown) driven and connected to the end of the support shaft 221.

That is, when the hull is rotated with the turret as the rotation axis, when the plurality of support bearings 200 disposed on the inner periphery of the door frame provide rotational force to the power generation unit 400, the power generation unit 400 includes a plurality of support bearings 200) to generate electric energy, and to supply the generated electric energy to each use site of the hull.

As described above, the present invention can easily perform the turret rotation test by selectively rotating the turret while supporting the guide rails of the turret in the hull. Accordingly, there is no need for a separate rotating test device for rotating the turret, and electricity can be produced by using the rotational force generated when the hull is rotated with the turret as a rotation axis.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the same is by way of illustration and example only and is not to be taken by way of limitation, and is to be accorded the widest scope consistent with the basic idea disclosed in the specification. 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.

100: drive bearing 110: drive wheel
120: drive supporter 121: rotary shaft
130: drive unit 131: rotary gear
132: drive motor 133: gear box
133a: drive gear 133b: driven gear
133c: ring gear 133d: first thread
133e: second thread 200: support bearing
210: support wheel 221: support shaft
220: mounting supporter 310: guide rail
350: Fixing piece 360: Fixing bolt
400: power generation unit

Claims (7)

A bearing device of a turret for supporting a turret in a hull,
A drive bearing installed to face the guide rails of the turret, for contacting the guide rails to rotate the turret; And
And a support bearing for supporting the guide rail,
The drive bearing
A driving wheel for supporting the guide rails;
A driving supporter in which the driving wheel is rotatably mounted via a rotating shaft;
A driving unit connected to one end of the rotating shaft, a driving motor for providing a driving force to the rotating shaft, and a gear box for transmitting a driving force of the driving motor to the rotating gear; And
And a braking unit including a braking wheel connected to the other end of the rotating shaft and a brake for selectively braking the braking wheel. The method according to claim 1,
The support bearing and the drive bearing
Wherein the turret is arranged alternately along the inner periphery of the door frame provided on the hull. delete delete A bearing device of a turret for supporting a turret in a hull,
A drive bearing installed to face the guide rails of the turret, for contacting the guide rails to rotate the turret; And
And a support bearing for supporting the guide rail,
The drive bearing
A driving wheel for supporting the guide rails;
A driving supporter in which the driving wheel is rotatably mounted via a rotating shaft; And
And a driving unit that includes a rotating gear connected to one end of the rotating shaft, a driving motor for providing a driving force to the rotating shaft, and a gear box for transmitting a driving force of the driving motor to the rotating gear,
The gear box
A driving gear interlocked with a driving shaft of the driving motor;
At least one driven gear rotating around the driving gear; And
Wherein a first thread engaged with the driven gear is formed on an inner diameter surface and a second thread engaged with a rotary gear of the rotary shaft is formed on an outer diameter surface. The method according to claim 1,
The support bearing
A support wheel supporting the guide rails; And
And a mounting supporter in which the support wheel is rotatably mounted via a support shaft. The method according to claim 6,
The support bearing
And a power generating unit for generating electric energy by receiving a rotational force when the support shaft rotates.
KR1020140016582A 2014-02-13 2014-02-13 Bearing apparatus of turret KR101599441B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140016582A KR101599441B1 (en) 2014-02-13 2014-02-13 Bearing apparatus of turret

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Application Number Priority Date Filing Date Title
KR1020140016582A KR101599441B1 (en) 2014-02-13 2014-02-13 Bearing apparatus of turret

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KR20150095363A KR20150095363A (en) 2015-08-21
KR101599441B1 true KR101599441B1 (en) 2016-03-03

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993007049A1 (en) * 1991-09-30 1993-04-15 Norsk Hydro A.S Turret for drilling or production ship
US20030154899A1 (en) 2002-02-19 2003-08-21 Fmc Technologies, Inc. Single point mooring with suspension turret
WO2010011324A1 (en) 2008-07-23 2010-01-28 Skf Usa, Inc. Bearing assembly for a mooring turret

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61160387A (en) * 1985-01-09 1986-07-21 Nippon Kokan Kk <Nkk> Turret support bearing in turret mooring ship
US6854407B2 (en) 2002-01-25 2005-02-15 Fmc Technologies, Inc. Method for constructing a very large turret mooring arrangement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993007049A1 (en) * 1991-09-30 1993-04-15 Norsk Hydro A.S Turret for drilling or production ship
US20030154899A1 (en) 2002-02-19 2003-08-21 Fmc Technologies, Inc. Single point mooring with suspension turret
WO2010011324A1 (en) 2008-07-23 2010-01-28 Skf Usa, Inc. Bearing assembly for a mooring turret

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