CN113830276A - Water jet propulsion and ship body integrated coupling structure - Google Patents
Water jet propulsion and ship body integrated coupling structure Download PDFInfo
- Publication number
- CN113830276A CN113830276A CN202111202513.7A CN202111202513A CN113830276A CN 113830276 A CN113830276 A CN 113830276A CN 202111202513 A CN202111202513 A CN 202111202513A CN 113830276 A CN113830276 A CN 113830276A
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- China
- Prior art keywords
- water jet
- ship body
- propulsion
- jet propulsion
- propeller
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 230000008878 coupling Effects 0.000 title claims abstract description 26
- 238000010168 coupling process Methods 0.000 title claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 26
- 230000007704 transition Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
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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
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Hydraulic Turbines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a water jet propulsion and ship body integrated coupling structure. The invention provides a novel integrated coupling scheme of water jet propulsion and a ship body, which realizes the integrated coupling from a structure to hydrodynamic force between the water jet propulsion and the ship body, simultaneously realizes the modularized assembly and disassembly of the water jet propulsion, has accurate and simple process and can solve the problem of low propulsion efficiency of a water jet propulsion ship in a range of 18-30kn navigational speed.
Description
Technical Field
The invention relates to a coupling technology of a water jet propeller and a ship structure, in particular to a structure capable of realizing deep coupling of the water jet propeller and the ship from the structure to hydrodynamic force.
Background
At present, two structural types are arranged on a ship body of a water jet propeller, wherein one type is that the propeller is arranged in a tail cabin of the ship body, a pump body of the propeller is integrally fixed on a stern board, the axis of the device is basically coincided with the waterline of the ship body, water at the bottom of the ship is guided into a propulsion pump through a built-in inlet flow passage, and the arrangement type of the propeller is called built-in water jet propulsion and is shown in a figure 1. Another arrangement is external, and the water jet propeller is suspended at the bottom of the ship, as shown in fig. 2. Whether built-in or external, the water jet propeller is well-defined from the hull. The two structures have the technical problems that the propelling efficiency of the water jet propulsion ship in the medium and low speed range is low, and the modular assembly and disassembly of the water jet propulsion ship and the ship body cannot be realized. Therefore, a novel structure for coupling water jet propulsion and a ship body is needed to be designed, the water jet propulsion and the ship body are integrated from the structure to the hydrodynamic force, on one hand, the problem that the propulsion efficiency of the water jet propulsion ship in a medium and low navigation speed range is low can be solved, on the other hand, the water jet propulsion ship is assembled and disassembled in a modularized mode, and the process is exquisite.
Disclosure of Invention
The invention provides an integrated coupling structure of water jet propulsion and a ship body, which realizes the integrated coupling between the water jet propulsion and the ship body from the structure to the hydrodynamic force, simultaneously realizes the modularized assembly and disassembly of a water jet propeller, has accurate and simple process and can solve the problem of low propulsion efficiency of a water jet propulsion ship in a range of 18-30kn navigational speed.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a water jet propulsion and hull integration coupled structure, water jet propulsion ware is whole to be arranged below hull afterbody waterline, and water jet propulsion ware lower edge minimum does not exceed the hull bottom, water jet propulsion ware passes through impeller casing fixed connection at the hull afterbody.
Furthermore, most of the circumferential direction of a propulsion pump body of the water jet propeller is embedded in the ship body, and the lower part of the propulsion pump body is exposed outside the ship body.
Further, the front of the propeller pump is provided with a stamping type inlet flow passage which forms a whole with the ship body.
Further, a cylinder-like cavity for mounting the propeller is arranged behind the stamping type inlet channel, and a wedge-shaped groove is formed above the cavity and is matched and positioned with a wedge block of a wedge block on the upper portion of the impeller shell.
Furthermore, the propulsion pump is matched with the wedge-shaped groove corresponding to the ship body through the wedge-shaped block on the upper portion of the impeller shell, so that the high-precision positioning and circumferential fixing of the water-jet propeller and the ship body are achieved.
Furthermore, the propulsion pump consists of an impeller, a guide vane body, a shaft system and an impeller shell.
Furthermore, the guide vane body is provided with an end plate which is used for being connected with the ship body through a screw group.
Furthermore, the water jet propeller is fixed on the ship body in the ship length direction through an end plate and a screw group on the guide vane body of the propeller pump.
Further, screw holes are processed at the tail part of the ship body so as to install and fix screw groups of the propulsion pump.
Furthermore, the impeller shell and an inlet flow channel on the ship body are in smooth transition.
The invention has the beneficial effects that:
the invention provides a novel integrated coupling scheme of water jet propulsion and a ship body, which realizes the integrated coupling from a structure to hydrodynamic force between the water jet propulsion and the ship body, simultaneously realizes the modularized assembly and disassembly of the water jet propulsion, has accurate and simple process and can solve the problem of low propulsion efficiency of a water jet propulsion ship in a range of 18-30kn navigational speed.
Drawings
FIG. 1 is a schematic diagram of a conventional built-in water jet propulsion structure;
FIG. 2 is a schematic diagram of an external conventional water jet propulsion structure;
FIG. 3 is a schematic view of the integrated coupling structure of the water jet propulsion and hull of the present invention;
FIG. 4 is a sectional view of a coupling structure of a water jet propeller and a ship body;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is a sectional view A-A of the water jet propeller coupled to the hull;
FIG. 7 is a cross-sectional view of the hull aft structure;
FIG. 8 is a left side view of FIG. 7;
FIG. 9 is a schematic view of a guide vane body and an end plate of the water jet propulsion pump;
FIG. 10 is a right side view of FIG. 9;
FIG. 11 is a view of the impeller housing of the waterjet propulsion pump;
fig. 12 is a left side view of fig. 11.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 3 to 12, the water jet propulsion and hull integrated coupling structure is characterized in that the water jet propulsion is integrally arranged below the waterline at the tail part of the hull 1, and the lowest point of the lower edge of the water jet propulsion does not exceed the bottom of the hull. Most of the circumferential direction of the water-jet propeller is embedded in the ship body, a punching type inlet flow channel is arranged in front of the propulsion pump 3, and the water-jet propeller is fixed at the tail part of the ship body 1 (a stern board 1.1 and a bottom board 1.4) through a wedge-shaped block 3.4.1 of an impeller shell 3.4 and a screw group 2, which are detailed in figures 3 and 4.
Most of the circumferential direction of the pump body of the propulsion pump 3 is embedded in the ship body 1, the lower part of the pump body is exposed outside the ship body 1, and a stamping type inlet flow passage 1.2 which forms a whole with the ship body is arranged in front of the propulsion pump 3. The water jet propulsion pump is matched with the wedge-shaped groove 1.3 corresponding to the ship body on the wedge-shaped block 3.4.1 on the upper part of the impeller shell 3.4 of the water jet propulsion pump, so that the high-precision positioning and circumferential fixing of the water jet propeller and the ship body are realized, and the water jet propeller is fixed on the ship body in the ship length direction through the end plate 3.2.1 on the guide vane body of the propulsion pump and the screw group 2, as shown in figures 4, 5 and 6.
A stamping type inlet flow passage 1.2 is arranged at the tail part of the ship body 1, a cylinder-like cavity for mounting the propeller is arranged behind the stamping type inlet flow passage 1.2, and a wedge-shaped groove 1.3 is arranged above the cavity to be matched and positioned with a wedge-shaped block 3.4.1 at the upper part of an impeller shell 3.4. Screw holes are processed on the tail plate 1.1 of the tail of the ship body so as to install a screw group 2 for fixing the propulsion pump, and the screw groups are shown in figures 7 and 8.
The water jet propulsion pump 3 consists of an impeller 3.1, a guide vane body 3.2, a shaft system 3.3 and an impeller shell 3.4. The blade body 3.2 is provided with an end plate 3.2.1 for coupling to the hull by means of a set of screws 2, see fig. 9, 10. The impeller shell 3.4 is provided with a wedge-shaped block 3.4.1 which is used for matching with a wedge-shaped groove 1.3 of the ship body to realize the accurate positioning and installation of the propeller on the ship body, see fig. 11 and 12, and the impeller shell 3.4 is in smooth transition with an inlet flow passage on the ship body 1.
The specific implementation process of the invention comprises the following steps:
a) processing an inlet flow channel 1.2 and a cylinder-like cavity with a wedge-shaped groove 1.3 for mounting a propeller at the tail part of the ship body 1;
b) assembling an impeller 3.1, a guide vane body 3.2, a thrust pump shaft system 3.3 and a thrust pump impeller shell 3.4 of a thrust pump in place, and ensuring that wedge blocks of an end plate 3.2.1 of the guide vane body and an impeller shell 3.4.1 are all positioned right above so as to be in geometric smooth butt joint with a ship body;
c) according to the principle that the wedge-shaped block 3.4.1 of the impeller shell 3.4 is matched with the wedge-shaped groove 1.3 of the ship body, the propulsion pump is installed in place, the screw group 2 is screwed on, the assembly of the propulsion pump on the ship is completed, then a shaft system is connected, and the system installation is completed.
The invention adopts a new scheme of coupling water jet propulsion and a ship body, the water jet propulsion is integrally arranged below a waterline at the tail part of the ship body, an inlet flow passage of the propulsion and the ship body form a whole, and the type of the inlet flow passage is a stamping type. The propulsion pump is matched and positioned with the corresponding wedge-shaped groove at the tail of the ship body through the wedge-shaped block on the impeller shell, and the propeller is fixed on the ship body through the end plate on the propeller guide vane body by a group of screws. The impeller shell of the water jet propulsion pump is smoothly connected and transited with the inlet runner. The propulsion pump is integrally assembled and disassembled with the wedge-shaped groove through the wedge-shaped block.
Claims (10)
1. The utility model provides a water jet propulsion and hull integration coupled structure which characterized in that: the water-jet propeller is integrally arranged below a waterline at the tail part of the ship body, the lowest point of the lower edge of the water-jet propeller does not exceed the bottom of the ship body, and the water-jet propeller is fixedly connected to the tail part of the ship body through the impeller shell.
2. The water jet propulsion and hull integrated coupling structure according to claim 1, wherein: most of the circumferential direction of a pump body of a propulsion pump of the water-jet propeller is embedded in the ship body, and the lower part of the pump body is exposed outside the ship body.
3. The water jet propulsion and hull integrated coupling structure according to claim 2, wherein: the front of the propeller pump is provided with a stamping type inlet flow passage which forms a whole with the ship body.
4. The water jet propulsion and hull integrated coupling structure according to claim 3, wherein: the rear part of the stamping type inlet runner is provided with a cylinder-like cavity for mounting the propeller, and a wedge-shaped groove is arranged above the cavity so as to be matched and positioned with a wedge-shaped block of a wedge-shaped block on the upper part of the impeller shell.
5. The water jet propulsion and hull integrated coupling structure according to claim 2, wherein: the propulsion pump is matched with the wedge-shaped groove corresponding to the ship body through the wedge-shaped block on the upper portion of the impeller shell, so that the high-precision positioning and circumferential fixing of the water-jet propeller and the ship body are achieved.
6. The water jet propulsion and hull integrated coupling structure according to claim 2, wherein: the propulsion pump consists of an impeller, a guide vane body, a shaft system and an impeller shell.
7. The water jet propulsion and hull integrated coupling structure according to claim 6, wherein: the guide vane body is provided with an end plate which is used for being connected with the ship body through a screw group.
8. The water jet propulsion and hull integrated coupling structure according to claim 1, wherein: the water jet propeller is fixed on the ship body in the ship length direction through an end plate and a screw group on the guide vane body of the propeller pump.
9. The water jet propulsion and hull integrated coupling structure according to claim 1, wherein: screw holes are processed at the tail part of the ship body so as to install and fix a screw group of the propulsion pump.
10. The water jet propulsion and hull integrated coupling structure according to claim 1, wherein: the impeller shell and the inlet runner on the ship body are in smooth transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202513.7A CN113830276B (en) | 2021-10-15 | 2021-10-15 | Water spray propulsion and hull integrated coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202513.7A CN113830276B (en) | 2021-10-15 | 2021-10-15 | Water spray propulsion and hull integrated coupling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113830276A true CN113830276A (en) | 2021-12-24 |
| CN113830276B CN113830276B (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111202513.7A Active CN113830276B (en) | 2021-10-15 | 2021-10-15 | Water spray propulsion and hull integrated coupling structure |
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| CN (1) | CN113830276B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6071156A (en) * | 1998-10-30 | 2000-06-06 | Bird-Johnson Company | Surface vessel with a fully submerged waterjet propulsion system |
| CN1655984A (en) * | 2002-05-29 | 2005-08-17 | 西门子公司 | High-speed sea-going ship comprising a double hull and a waterjet drive |
| US20060057907A1 (en) * | 2004-09-10 | 2006-03-16 | Honda Motor Co., Ltd. | Water jet propeller |
| CN104215426A (en) * | 2014-09-22 | 2014-12-17 | 中国船舶工业集团公司第七〇八研究所 | Measuring device and measuring method of internal flow field and external characteristic of water-jet propeller |
| CN108284934A (en) * | 2017-12-29 | 2018-07-17 | 中国船舶工业集团公司第七0八研究所 | A kind of blade detachable type hydraulic jet propulsion blade wheel structure |
| CN108748971A (en) * | 2018-03-08 | 2018-11-06 | 哈尔滨工程大学 | A kind of integrated hydraulic propeller processing method based on 3D printing |
| CN111824326A (en) * | 2020-07-29 | 2020-10-27 | 中国船舶工业集团公司第七0八研究所 | Ship structure deeply coupled with water jet propulsion unit |
| CN212890796U (en) * | 2020-09-04 | 2021-04-06 | 大连獐子岛船舶制造有限公司 | Novel ship body |
| CN112776967A (en) * | 2021-02-10 | 2021-05-11 | 北京理工大学 | Axial-flow type double-duct water jet propeller |
-
2021
- 2021-10-15 CN CN202111202513.7A patent/CN113830276B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6071156A (en) * | 1998-10-30 | 2000-06-06 | Bird-Johnson Company | Surface vessel with a fully submerged waterjet propulsion system |
| CN1655984A (en) * | 2002-05-29 | 2005-08-17 | 西门子公司 | High-speed sea-going ship comprising a double hull and a waterjet drive |
| US20060057907A1 (en) * | 2004-09-10 | 2006-03-16 | Honda Motor Co., Ltd. | Water jet propeller |
| CN104215426A (en) * | 2014-09-22 | 2014-12-17 | 中国船舶工业集团公司第七〇八研究所 | Measuring device and measuring method of internal flow field and external characteristic of water-jet propeller |
| CN108284934A (en) * | 2017-12-29 | 2018-07-17 | 中国船舶工业集团公司第七0八研究所 | A kind of blade detachable type hydraulic jet propulsion blade wheel structure |
| CN108748971A (en) * | 2018-03-08 | 2018-11-06 | 哈尔滨工程大学 | A kind of integrated hydraulic propeller processing method based on 3D printing |
| CN111824326A (en) * | 2020-07-29 | 2020-10-27 | 中国船舶工业集团公司第七0八研究所 | Ship structure deeply coupled with water jet propulsion unit |
| CN212890796U (en) * | 2020-09-04 | 2021-04-06 | 大连獐子岛船舶制造有限公司 | Novel ship body |
| CN112776967A (en) * | 2021-02-10 | 2021-05-11 | 北京理工大学 | Axial-flow type double-duct water jet propeller |
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| Publication number | Publication date |
|---|---|
| CN113830276B (en) | 2023-11-17 |
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