KR20170028075A - Bush device for ship - Google Patents
Bush device for ship Download PDFInfo
- Publication number
- KR20170028075A KR20170028075A KR1020150124896A KR20150124896A KR20170028075A KR 20170028075 A KR20170028075 A KR 20170028075A KR 1020150124896 A KR1020150124896 A KR 1020150124896A KR 20150124896 A KR20150124896 A KR 20150124896A KR 20170028075 A KR20170028075 A KR 20170028075A
- Authority
- KR
- South Korea
- Prior art keywords
- radius
- curvature
- propeller shaft
- reference line
- ship
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bushing device installed in a stern bulb of a ship to support a propeller.
The conventional bushing device is of a tubular shape for inserting a propeller shaft and supports the propeller shaft between the stern bulb and the propeller shaft. Since the propeller shaft of the ship is suspended with an excessive load propeller, a bushing device must be installed to protect the propeller shaft.
However, even if the bush supports the load of the propeller shaft, the excessive propeller load causes the propeller shaft to bend finely causing misalignment of the propeller shaft and bushing. If the alignment between the bushing device and the propeller shaft becomes poor, the load may be concentrated on a part of the bushing device, and the bushing device may be damaged. If the bushing device is broken, the flow of the propeller shaft is induced to reduce the propulsion efficiency. Therefore, the bushing device must be replaced periodically. Replacing the bushing device requires a lot of time and cost.
It is an object of the present invention to provide a bushing of a ship capable of reducing misalignment of the bush device and the propeller shaft.
A bushing apparatus for a ship according to one aspect of the present invention is a bushing apparatus for supporting a propeller shaft by being inserted into a stern bulb of a ship while enclosing a propeller shaft of a ship, Wherein the variable alignment tube has an outer surface facing the stern bulb and an inner surface facing the propeller shaft, the first baseline along the center of the outer surface has a first radius of curvature, The reference line has a second radius of curvature, and the first radius of curvature and the second radius of curvature may be different from each other.
Here, the first radius of curvature may be smaller than the second radius of curvature, the first reference line may be a curve, and the second reference line may be a straight line.
The bushing further includes a support member surrounding the variable alignment tube and inserted into the stern bulb, the support member having a first surface facing the stern bulb and a second surface facing the variable alignment tube, The third radius of curvature formed by the third reference line connecting the center of the first surface may be greater than the fourth radius of curvature formed by the fourth reference line extending from the center of the second surface.
In addition, the first reference line may be a straight line, and the second reference line may be a curve.
According to an embodiment of the present invention, since the center line of the inner surface and the outer surface of the variable alignment tube are formed to have different radii of curvature, the variable alignment tube can be inclined with the propeller shaft even when the propeller shaft is bent, Can be prevented from becoming poor.
1 is a sectional view showing a stern bulb of a ship according to an embodiment of the present invention.
2 is a perspective view illustrating a variable alignment tube according to an embodiment of the present invention.
3 is a perspective view illustrating a support member according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a bushing apparatus according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.
Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the terms " part, "" module," and " module ", etc. in the specification mean a unit for processing at least one function or operation and may be implemented by hardware or software or a combination of hardware and software have.
In addition, throughout the specification, the term "ship" is not limited to a structure that refers to a structure that navigates an aquifer, but includes a structure that navigates the aquifer, as well as a marine structure such as a FLNG that floats in the aquifer and performs operations Is used. The ship of this embodiment may be, for example, LNGC or FLNG, but the present invention is not limited thereto. Now, a fuel cell operating system and method according to an embodiment of the present invention will be described in detail with reference to the drawings.
Hereinafter, a bushing of a ship according to an embodiment of the present invention will be described.
FIG. 1 is a sectional view showing a stern bulb of a ship according to an embodiment of the present invention, and FIG. 2 is a perspective view illustrating a variable alignment pipe according to an embodiment of the present invention.
1 and 2, a
The
The
The first reference line X11 connecting the center of the
That is, as shown in FIG. 2, the
3 is a perspective view illustrating a support member according to an embodiment of the present invention.
2 and 3, the
The
The third reference line X13 connecting the center of the
4 is a cross-sectional view illustrating a bushing apparatus according to an embodiment of the present invention.
4, the
The
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, It belongs to the scope of right.
10:
12: Propeller 13: Propeller shaft
15: passage 20: support member
22: first side 26: second side
26a, 32a:
30: variable alignment tube 32: outer surface
36: Inner side 40: Bushing device
R1: first radius of curvature R2: second radius of curvature
R3: third curvature radius R4: fourth curvature radius
X11: first reference line X12: second reference line
X13: third reference line X14: fourth reference line
X15: center axis X20: reference axis
Claims (5)
Wherein the variable pitch pipe has an outer surface facing the stern bulb and an inner surface facing the propeller shaft,
The first reference line having the center of the outer surface has a first radius of curvature and has a second radius of curvature formed by a second reference line connecting the center of the inner surface and the first radius of curvature and the second radius of curvature are different from each other Characterized by the bushing of the ship.
Wherein the first radius of curvature is smaller than the second radius of curvature.
Wherein the first reference line is a curved line, and the second reference line is a straight line.
Wherein the bush device further comprises a support member surrounding the variable alignment pipe and inserted into the stern bulb, the support member having a first surface facing the stern bulb and a second surface facing the variable alignment pipe, Wherein a third radius of curvature formed by a third reference line passing through the center of the first surface is larger than a fourth radius of curvature formed by a fourth reference line connecting the center of the second surface.
Wherein the first reference line is a straight line, and the second reference line is a curve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150124896A KR101723927B1 (en) | 2015-09-03 | 2015-09-03 | Bush device for ship |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150124896A KR101723927B1 (en) | 2015-09-03 | 2015-09-03 | Bush device for ship |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170028075A true KR20170028075A (en) | 2017-03-13 |
KR101723927B1 KR101723927B1 (en) | 2017-04-06 |
Family
ID=58411809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150124896A KR101723927B1 (en) | 2015-09-03 | 2015-09-03 | Bush device for ship |
Country Status (1)
Country | Link |
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KR (1) | KR101723927B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109455286A (en) * | 2018-11-15 | 2019-03-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of ship stern support device of multifunctional unit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5036600A (en) * | 1973-06-14 | 1975-04-05 | ||
JPS58124826A (en) * | 1982-01-21 | 1983-07-25 | Ishikawajima Harima Heavy Ind Co Ltd | Method for supporting propeller shaft on stern tube |
KR20110043782A (en) * | 2008-09-01 | 2011-04-27 | 카와사키 주코교 카부시키 카이샤 | Flexible coupling structure and ship thruster device with same |
KR20110136484A (en) | 2010-06-15 | 2011-12-21 | 삼성중공업 주식회사 | Shoulder bearing unit for propeller shaft in stern tube |
-
2015
- 2015-09-03 KR KR1020150124896A patent/KR101723927B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5036600A (en) * | 1973-06-14 | 1975-04-05 | ||
JPS58124826A (en) * | 1982-01-21 | 1983-07-25 | Ishikawajima Harima Heavy Ind Co Ltd | Method for supporting propeller shaft on stern tube |
KR20110043782A (en) * | 2008-09-01 | 2011-04-27 | 카와사키 주코교 카부시키 카이샤 | Flexible coupling structure and ship thruster device with same |
KR20110136484A (en) | 2010-06-15 | 2011-12-21 | 삼성중공업 주식회사 | Shoulder bearing unit for propeller shaft in stern tube |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109455286A (en) * | 2018-11-15 | 2019-03-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of ship stern support device of multifunctional unit |
Also Published As
Publication number | Publication date |
---|---|
KR101723927B1 (en) | 2017-04-06 |
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