KR20130102167A - Stern tube of vessel propel shaft bearing - Google Patents
Stern tube of vessel propel shaft bearing Download PDFInfo
- Publication number
- KR20130102167A KR20130102167A KR1020120023165A KR20120023165A KR20130102167A KR 20130102167 A KR20130102167 A KR 20130102167A KR 1020120023165 A KR1020120023165 A KR 1020120023165A KR 20120023165 A KR20120023165 A KR 20120023165A KR 20130102167 A KR20130102167 A KR 20130102167A
- Authority
- KR
- South Korea
- Prior art keywords
- stern tube
- propulsion shaft
- ship
- groove
- stern
- 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
- B63H23/321—Bearings or seals specially adapted for propeller shafts
-
- 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
- B63H23/36—Shaft tubes
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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
The present invention relates to a stern tube of a bearing surrounding the propulsion shaft of the ship, in particular configured to prevent the heat generation of the bearing occurs during the operation of the ship.
Among the bearings supporting the propulsion shaft of the ship, the bearing fitted to the stern tube is a bush type bearing. When constructing the bearing as described above, the shaft system alignment is performed so that the contact pressure with the propulsion shaft is generated evenly over the bearing longitudinal direction in consideration of propeller weight, seawater buoyancy, thrust moment, etc. acting on the propulsion shaft. However, as the size of the ship increases, the ductility of the ship increases, the size of the propulsion shaft increases, and the weight of the propeller also increases, indicating a propulsion shaft elastic curve, which not only increases the reaction force of various bearings supporting the shaft system but also the reaction force distribution profile. There was also a problem of local concentration.
As described above, the propulsion shaft of the stern portion is elastically deformed downward by the propeller weight, the seawater buoyancy, the thrust moment, etc., and there is a problem that friction occurs while the stern tube surrounding the propulsion shaft and the propulsion shaft elastically deformed downward are in contact with each other.
In addition, when the ship turns to the left and right side, the friction is generated by the left and right sides of the inner circumferential surface of the stern tube in contact with the propulsion shaft by the drag force acting on the ship.
The present invention has been invented to solve the problems of the prior art as described above, a stern tube configured to compensate for the elastic deformation of the propulsion shaft to prevent friction due to the elastic deformation of the propulsion shaft according to the specifications and operation of the ship The purpose is to provide.
The present invention for achieving the above object is a stern tube of the bearing surrounding the propulsion shaft of the ship, characterized in that the groove is formed on the inner peripheral surface of the end end of the stern tube toward the end of the propulsion shaft on which the propeller is mounted.
In addition, according to a preferred embodiment of the present invention, the groove is formed in the lower portion of the inner peripheral surface of the end of the stern tube.
In addition, according to a preferred embodiment of the present invention, the grooves are formed on both sides of the inner peripheral surface of the end of the stern tube, respectively.
In addition, according to a preferred embodiment of the present invention, the groove is formed by extending both sides and the bottom of the inner peripheral surface of the end of the stern tube.
As described above, the stern tube of the ship propulsion shaft bearing according to the present invention considers in advance the elastic deformation of the propulsion shaft due to the specifications of the ship, that is, the propeller weight, seawater buoyancy, thrust moment, etc. By forming a compensation space on the inner circumferential surface of the stern tube of the bearing, it is possible to prevent friction between the propulsion shaft and the stern tube generated during the specification and operation of the vessel.
1 is a conceptual diagram showing a cross section of the stern tube surrounding the propulsion shaft,
2 is a front sectional view of the stern tube according to the present invention;
3 is a plan sectional view of the stern tube shown in FIG.
4 is a side view seen from the stern of the stern tube shown in FIG.
Figure 5 is a side view showing the elastic deformation of the propulsion shaft located in the stern tube shown in FIG.
Hereinafter, with reference to the accompanying drawings a preferred embodiment of the stern tube according to the present invention will be described in detail.
1 is a conceptual view showing a cross-section of the stern tube surrounding the propulsion shaft, Figure 2 is a front sectional view of the stern tube according to the present invention, Figure 3 is a plan sectional view of the stern tube shown in FIG. 4 is a side view seen from the stern of the stern tube shown in Figure 2, Figure 5 is a side view showing the elastic deformation of the propulsion shaft located in the stern tube shown in FIG.
As shown in FIG. 1, the
Meanwhile, as shown in FIGS. 2 to 4, grooves 120 (121, 122) are formed in the inner circumferential surface of the end where the
Specifically, as shown in Figure 2, the lower end of the inner circumferential surface of the
Here, the
In addition, the
Specifications such as the inclination angle and the length of the
In addition, as illustrated in FIGS. 4 and 5, the
On the other hand, the size of the
10: propulsion shaft
11: propeller
100: Bearing
110: Stern Tube
120: home
121: first groove
122: second groove
Claims (4)
The stern tube of the ship propulsion shaft bearing, characterized in that the groove is formed on the inner peripheral surface of the end of the stern tube toward the end of the propulsion shaft on which the propeller is mounted.
Stern tube of the ship propulsion shaft bearing, characterized in that the groove is formed in the lower portion of the inner peripheral surface of the end of the stern tube.
Stern tubes of the ship propulsion shaft bearing, characterized in that the grooves are formed on both sides of the inner peripheral surface of the end of the stern tube.
The groove is a stern tube of the ship propulsion shaft bearing, characterized in that formed by extending both sides and the lower portion of the inner peripheral surface of the end of the stern tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120023165A KR20130102167A (en) | 2012-03-07 | 2012-03-07 | Stern tube of vessel propel shaft bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120023165A KR20130102167A (en) | 2012-03-07 | 2012-03-07 | Stern tube of vessel propel shaft bearing |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20130102167A true KR20130102167A (en) | 2013-09-17 |
Family
ID=49451977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020120023165A KR20130102167A (en) | 2012-03-07 | 2012-03-07 | Stern tube of vessel propel shaft bearing |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20130102167A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170014938A (en) * | 2015-07-31 | 2017-02-08 | 삼성중공업 주식회사 | Clutch module for ship |
-
2012
- 2012-03-07 KR KR1020120023165A patent/KR20130102167A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170014938A (en) * | 2015-07-31 | 2017-02-08 | 삼성중공업 주식회사 | Clutch module for ship |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |