CN100348458C - Fish shape simulating nacelle propeller - Google Patents
Fish shape simulating nacelle propeller Download PDFInfo
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- CN100348458C CN100348458C CNB200510030439XA CN200510030439A CN100348458C CN 100348458 C CN100348458 C CN 100348458C CN B200510030439X A CNB200510030439X A CN B200510030439XA CN 200510030439 A CN200510030439 A CN 200510030439A CN 100348458 C CN100348458 C CN 100348458C
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- propeller
- electric machine
- screw propeller
- fish shape
- gondola
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Abstract
The present invention relates to a fish shape simulating propeller for a hanging cabin, which belongs to the field of ship propulsion. The present invention comprises a hanging cabin body, a bracket, a motor bearing, a shaft coupling, a screw propeller, a screw propeller bearing, a stator of a propulsion electric machine, a rotor of a propulsion electric machine, a caudal fin and two lateral fins, wherein the hanging cabin body is fixedly connected with the bracket; one end of the screw propeller is fixedly arranged in the hanging cabin body through the screw propeller bearing; the stator of a propulsion electric machine is erected in the hanging cabin body through an electric machine and the bracket, and the shaft of the rotor of a propulsion electric machine is connected with the shaft of the screw propeller through the shaft coupling; the tail fin and the lateral fin are respectively in smooth and transitional connection with the hanging cabin body. The present invention optimizes the shape of a single streamline hanging cabin, effectively improves wake flow fields, improves the hydrodynamic performance of the hanging cabin and enhances the propulsion efficiency of the whole propeller.
Description
Technical field
What the present invention relates to is a kind of member of ship structure technical field, specifically, is a kind of fish shape simulating nacelle propeller.
Background technology
The angle of rake notion of pod propulsion comes from icebreaker, the earliest 19th century the eighties put forward latter stage.At that time, the solution of more performance-oriented icebreaker was attempted to seek to have in navigation in ice region by Finland bureau of maritime affairs, and preliminary imagination is the propulsive force that propulsion electric machine can provide arbitrary orientation.Subsequently, ABB has just proposed the prototype scheme of Azipod, and submits to the manufacturing of Kvaerner Masa shipyard.This propelling unit mainly comprises gondola and screw propeller two parts.Gondola by support be suspended on hull below, can rotate in all directions.Motor places the gondola the inside, and the stator of motor is fixed on the housing of gondola, and the rotor of motor is exactly the axle of screw propeller, and direct-driven airscrew.The propulsion system and the helm of boats and ships become one, and have saved the space in the cabin.Since gondola can 360 the comprehensive rotation of degree, and the direction of wanting of what is the need in office produces propulsive force, thereby saved the rudder and the lateral thruster of traditional propeller, makes the manoevreability of boats and ships increase.In pod propulsion propelling unit actual application, some problems have appearred, mainly concentrate on two aspects of wear-out of a bearing and seal wear.Bearing and packing technique that gondola is adopted all are time-proved, and the problem of current appearance is at gondola itself, and in the hydrodynamics problem.Analyze its concrete reason, in the practical operation of gondola, need bigger steering angle to go as course, the irregularity that enters the current of screw propeller can constantly increase, thereby produces cavitation phenomenon, causes that bearing weares and teares too early, seal wear.
Find U.S. Patent Publication No. through literature search to prior art: 5947779, open day is on September 7th, 1999, patent name is: PROPULSION DEVICE (propelling unit).This patent has been described a kind of boats and ships PODDED PROPULSOR that is proposed by ABB AB, and this propelling unit comprises a rotatable underwater propulsion gondola, a fixed pitch propeller and a S. A..Advance gondola inside that propulsion electric machine is installed, rotor axis of electric links to each other with prop shaft, and screw propeller is fixed on by thrust bearing and advances in the gondola, and an end of S. A. connects the propelling gondola, and an end is installed on the hull by thrust bearing.The upper end of S. A. can be adjusted so that S. A. is vertical with prop shaft.Aforesaid pod propulsion propelling unit, its weak point is: once occurred leaking in actual application, phenomenon such as propeller bearing undue wear.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of fish shape simulating nacelle propeller is provided, it is optimized single swept-out gondola profile, improve tail flow field effectively, improve the gondola hydrodynamic performance, improve whole angle of rake propulsion coefficient.
The present invention is achieved by the following technical solutions, the present invention includes: the gondola body, support, motor bearings, coupler, screw propeller, propeller bearing, the propulsion electric machine stator, the propulsion electric machine rotor, tail fin, two lateral fins, gondola body and support are connected, one end of screw propeller is installed in the gondola body by propeller bearing, the propulsion electric machine stator is erected in the gondola body with propping up by motor bearings, the axle of propulsion electric machine rotor links together by coupler with the axle of screw propeller, tail fin is connected with gondola body smooth transition respectively with lateral fin, to reduce the possibility that produces cavitation phenomenon.
Described gondola body, its profile are fish shape.
Described gondola body, its cross section are oval, its out of roundness≤3%.
Theoretically, the diameter at place, the maximum cross-section of gondola body is more little, helps the improvement of propulsion quality more, but is subjected to the restriction of motor size, and a minimum value is arranged.And the diameter of screw propeller is the power according to propulsion electric machine, and the diameter of screw propeller is big more, and tractive power is high more, but is subjected to the restriction of structure, and a maximum gauge is arranged.Therefore, described gondola body, the diameter at its place, maximum cross-section and the scope of diameter of propeller ratio are 0.4～0.5.
The cross sectional shape of described support is oval or wing, to strengthen the propulsion quality of gondola body.
Described screw propeller, its propeller hub and gondola body bonded assembly taper angle are 15～20 °.
Described screw propeller is the catheter type screw propeller.
Described tail fin is single tail fin or double tail fins.
Described lateral fin is wing.
Installation of the present invention comprises dual mode: pushing-type gondola body is installed and is dragged formula gondola body to install.When pushing-type was installed, square neck was oblique down for a side of screw propeller; When the formula of dragging was installed, square neck was oblique up for a side of screw propeller.For above two kinds of mounting meanss, the angle between the axis of propulsion electric machine rotor and the base plane of hull is 5～8 °, to increase the stability of gondola body.
Working process of the present invention and principle of work are: whole PODDED PROPULSOR can realize the propelling of boats and ships and turn to function, the promptly integrated screw propeller and the rudder of common ship.In boats and ships advanced process, the propulsion electric machine rotor drove the screw propeller rotation by coupler, for boats and ships provide power.When the pushing-type gondola was installed, tail fin and lateral fin can improve the influent stream of screw propeller, thereby can improve the hydrodynamic performance of screw propeller, improved the force environment that is subjected to of propeller bearing and motor bearings, improved the life-span of bearing; When dragging the formula gondola to install, tail fin and lateral fin can improve the tail flow field of gondola, thereby improve whole angle of rake propulsion coefficient.When boats and ships need change course, drive the gondola body by support and rotate a certain angle, produce propulsive force at predetermined direction, boats and ships are travelled, the flow field when this moment, tail fin and lateral fin can effectively improve the gondola revolution, the turnability of raising gondola by predetermined direction.The stator of propulsion electric machine is directly adjacent to the gondola body wall, can be by the mobile heat radiation of gondola external fluid.
The invention has the beneficial effects as follows:,, install tail fin and lateral fin additional whole gondola body design adult fish shape according to the profile of bionics principle improvement gondola body.Compare with common PODDED PROPULSOR, when boats and ships advanced, this fish shape simulating nacelle propeller can improve the influent stream of screw propeller and the tail flow field of gondola, thereby improved the hydrodynamic performance of screw propeller, improved whole angle of rake efficient about 2% to 3%; When ship turning, can improve the revolution flow field of gondola, thereby improve the turnability of gondola, improve the maneuvering performance of gondola.The hydrodynamic performance of optimizing can be improved the stressed of propeller bearing and sealing element, delays wearing and tearing and damaged, the service life of improving motor bearings and propeller bearing.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a gondola body profile birds-eye view
Fig. 3 is a scheme of installation of the present invention
Wherein, (a) install, (b) for dragging the formula gondola to install for the pushing-type gondola.
The specific embodiment
As shown in Figure 1, 2, the present invention includes: gondola body 1, support 2, motor bearings 3, coupler 4, screw propeller 5, propeller bearing 6, propulsion electric machine stator 7, propulsion electric machine rotor 8, tail fin 9, two lateral fins 10, gondola body 1 is connected with support 2, one end of screw propeller 5 is installed in the gondola body 1 by propeller bearing 6, propulsion electric machine stator 7 is erected in the gondola body 1 with propping up by motor bearings 3, the axle of propulsion electric machine rotor 8 links together by coupler 4 with the axle of screw propeller 5, and tail fin 9 is connected with gondola body 1 smooth transition respectively with lateral fin 10.
Described gondola body 1, its profile are fish shape.
Described gondola body 1, its cross section are oval, its out of roundness≤3%.
Described gondola body 1, the diameter at its place, maximum cross-section and the scope of diameter of propeller ratio are 0.4～0.5.
The cross sectional shape of described support 2 is oval or wing.
Described screw propeller 5, its propeller hub and gondola body 1 bonded assembly taper angle are 15～20 °.
Described screw propeller 5 is the catheter type screw propeller.
Described tail fin 9 is single tail fin or double tail fins.
Described lateral fin 10 is wing.
Installation of the present invention comprises dual mode: pushing-type gondola body is installed and is dragged formula gondola body to install.Shown in Fig. 3 (a), when pushing-type was installed, square neck was oblique down for a side of screw propeller 5; Shown in Fig. 3 (b), when the formula of dragging was installed, square neck was oblique up for a side of screw propeller 5.For above two kinds of mounting meanss, the angle between the base plane of the axis of propulsion electric machine rotor 8 and hull 11 is 5～8 °, as shown in Figure 3 angle a.
Claims (8)
1. fish shape simulating nacelle propeller, comprise: gondola body (1), support (2), motor bearings (3), coupler (4), screw propeller (5), propeller bearing (6), propulsion electric machine stator (7), propulsion electric machine rotor (8), it is characterized in that, also comprise: tail fin (9), two lateral fins (10), gondola body (1) is connected with support (2), one end of screw propeller (5) is installed in the gondola body (1) by propeller bearing (6), propulsion electric machine stator (7) is by motor bearings (3) and be erected in the gondola body (1), the axle of propulsion electric machine rotor (8) links together by coupler (4) with the axle of screw propeller (5), and tail fin (9) is connected with gondola body (1) smooth transition respectively with lateral fin (10); Described screw propeller (5), its propeller hub and gondola body (1) bonded assembly taper angle are 15～20 °; Described propulsion electric machine rotor (8), the angle between the base plane of its axis and hull (11) is 5～8 °.
2. fish shape simulating nacelle propeller according to claim 1 is characterized in that, described gondola body (1), and its profile is a fish shape.
3. fish shape simulating nacelle propeller according to claim 1 is characterized in that, described gondola body (1), and its cross section is the ellipse of out of roundness≤3%.
4. fish shape simulating nacelle propeller according to claim 3 is characterized in that, described gondola body (1), and the diameter at its place, maximum cross-section and the scope of diameter of propeller ratio are 0.4～0.5.
5. fish shape simulating nacelle propeller according to claim 1 is characterized in that, the cross sectional shape of described support (2) is oval or wing.
6. fish shape simulating nacelle propeller according to claim 1 is characterized in that, described screw propeller (5) is the catheter type screw propeller.
7. fish shape simulating nacelle propeller according to claim 1 is characterized in that, described tail fin (9) is single tail fin or double tail fins.
8. fish shape simulating nacelle propeller according to claim 1 is characterized in that, described lateral fin (10) is wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510030439XA CN100348458C (en) | 2005-10-13 | 2005-10-13 | Fish shape simulating nacelle propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510030439XA CN100348458C (en) | 2005-10-13 | 2005-10-13 | Fish shape simulating nacelle propeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1749104A CN1749104A (en) | 2006-03-22 |
| CN100348458C true CN100348458C (en) | 2007-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510030439XA Expired - Fee Related CN100348458C (en) | 2005-10-13 | 2005-10-13 | Fish shape simulating nacelle propeller |
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| Country | Link |
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| CN (1) | CN100348458C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811566B (en) * | 2010-03-03 | 2011-09-28 | 上海交通大学 | Underwater servo propeller |
| CN106240779A (en) * | 2016-01-27 | 2016-12-21 | 北车船舶与海洋工程发展有限公司 | Pull-type full circle swinging electric power gondola propulsion system peculiar to vessel |
| CN106347588B (en) * | 2016-09-19 | 2018-01-19 | 哈尔滨工程大学 | A kind of ocean navigation device of imitative flying fish |
| CN106741779A (en) * | 2016-12-21 | 2017-05-31 | 哈尔滨工程大学 | A kind of bionic nacelle propeller |
| CN107117277A (en) * | 2017-04-12 | 2017-09-01 | 哈尔滨工程大学 | PODDED PROPULSOR with bionical conduit |
| CN109795658B (en) * | 2017-11-17 | 2022-02-01 | 西门子能源国际公司 | Supporting device of nacelle type propeller and nacelle type propeller |
| CN110539866B (en) * | 2019-07-26 | 2023-11-10 | 北京精密机电控制设备研究所 | Combined propeller |
| CN112520000A (en) * | 2019-09-17 | 2021-03-19 | 西门子（中国）有限公司 | Pod type propeller and ship |
| CN111216861B (en) * | 2020-03-24 | 2021-04-16 | 江苏科技大学 | Novel combined vortex-fin-eliminating device of pod propeller and design method thereof |
| CN111547216B (en) * | 2020-04-09 | 2022-07-26 | 武汉船用机械有限责任公司 | Pod propeller and mounting method of stator of propelling motor of pod propeller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003200892A (en) * | 2002-01-04 | 2003-07-15 | Sumitomo Heavy Ind Ltd | Pod type propeller and vessel with the same |
| DE10208595A1 (en) * | 2002-02-27 | 2003-09-11 | Alfred Dudszus | Active rudder arrangement with integral thrust or rotary device, has propeller drive integrated into rudder reinforcing unit beneath rudder support |
| CN1466530A (en) * | 2000-09-25 | 2004-01-07 | Abb | Ship propulsion device and method and arrangement relating thereto |
| JP2004106565A (en) * | 2002-09-13 | 2004-04-08 | Kawasaki Heavy Ind Ltd | Pod propeller |
| JP2004136782A (en) * | 2002-10-17 | 2004-05-13 | National Maritime Research Institute | Ship with course stabilizing device |
-
2005
- 2005-10-13 CN CNB200510030439XA patent/CN100348458C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1466530A (en) * | 2000-09-25 | 2004-01-07 | Abb | Ship propulsion device and method and arrangement relating thereto |
| JP2003200892A (en) * | 2002-01-04 | 2003-07-15 | Sumitomo Heavy Ind Ltd | Pod type propeller and vessel with the same |
| DE10208595A1 (en) * | 2002-02-27 | 2003-09-11 | Alfred Dudszus | Active rudder arrangement with integral thrust or rotary device, has propeller drive integrated into rudder reinforcing unit beneath rudder support |
| JP2004106565A (en) * | 2002-09-13 | 2004-04-08 | Kawasaki Heavy Ind Ltd | Pod propeller |
| JP2004136782A (en) * | 2002-10-17 | 2004-05-13 | National Maritime Research Institute | Ship with course stabilizing device |
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| Publication number | Publication date |
|---|---|
| CN1749104A (en) | 2006-03-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20101013 |