CN105523160A - Hub connecting structure of forward propeller and rear propeller of contrarotating propeller - Google Patents
Hub connecting structure of forward propeller and rear propeller of contrarotating propeller Download PDFInfo
- Publication number
- CN105523160A CN105523160A CN201610005267.9A CN201610005267A CN105523160A CN 105523160 A CN105523160 A CN 105523160A CN 201610005267 A CN201610005267 A CN 201610005267A CN 105523160 A CN105523160 A CN 105523160A
- Authority
- CN
- China
- Prior art keywords
- oar
- bow
- propeller
- propeller hub
- spinner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
- B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
- B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
- B63H2005/103—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type of co-rotative type, i.e. rotating in the same direction, e.g. twin propellers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to a hub connecting structure of a front propeller and a rear propeller of a contrarotating propeller. The hub connecting structure comprises the front propeller and the rear propeller which are co-axially arranged, wherein the front propeller is driven by an internal combustion turbine or a motor in a ship body; the rear propeller is driven by a motor nacelle arranged at the tail of the rear propeller; the front propeller comprises front propeller blades, a front propeller hub and a front propeller fairing; the rear propeller comprises a rear propeller hub and rear propeller blades; the cross sections of the rear propeller hub, the front propeller fairing and the front propeller hub are circular; the busbar of the rear propeller hub and the front propeller fairing is a coherent sine curve segment, wherein the diameter of the rear propeller hub is larger than that of the front propeller fairing; tangent lines at the head end and the tail end of the curve segment of the sine curve segment are parallel to the axis of the propeller. When a main engine for driving the front propeller operates, the front propeller blades and the front propeller fairing are driven to rotate by the front propeller hub, the front propeller blades generate thrust, so as to push backwards to generate a rotating wake flow, the flow proximity to the front propeller hub flows to the rear propeller hub in the manner of being attached to the front propeller fairing; when an electric motor for driving the rear propeller operates, the rear propeller blades rotate to recover the rotating wake flow of the front propeller, so that energy is recovered and the incoming flow of the front propeller fairing can smoothly flow through.
Description
Technical field
The present invention relates to a kind of to turning oar propeller hub connection structure before and after oar, belonging to Ship Design Technology field.
Background technology
The pattern of counter rotating propeller has multiple, and wherein for the screw propeller of front and back oar individual drive, bow oar is with moving axis to drive front propeller to rotate by the automotive gas turbine (or motor) of hull interior usually; Rear oar adopts podded electric propulsion pattern usually.From the angle of energy-saving principle, mainly adopt rear oar and bow oar to reverse to the pattern turning oar, thus reclaim the energy in bow oar trailing vortex, reach energy-conservation effect.But, existing abundant not to the consideration of hub eddyloss to turning paddle type formula, propeller hub spinner is connected pattern all not through optimal design, the conventional bow oar propeller hub to turning oar adopts the shape of round platform, and hold at ship's head greatly, small end is direction on the quarter, a large amount of whirlpools can be produced, and then cause the loss of energy, can not give full play to turning the energy-conservation effect of oar, with inconsistent to the design original intention turning oar.
Summary of the invention
The technical issues that need to address of the present invention are: existing abundant not to the consideration of hub eddyloss to turning paddle type formula, propeller hub spinner is connected pattern all not through optimal design, a large amount of whirlpools being produced, and then cause the loss of energy, can not giving full play to turning the energy-conservation effect of oar.
The present invention takes following technical scheme:
A kind of to turning oar propeller hub connection structure before and after oar, comprise the bow oar of coaxial setting, rear oar; Bow oar is driven by the automotive gas turbine of hull interior or motor, and rear oar is driven by the electrical motor gondola 3 of its afterbody; Described bow oar comprises bow oar blade 1, bow oar propeller hub 2, bow oar spinner 4; Described rear oar comprises rear oar propeller hub 5, rear oar blade 6; The cross-sectional plane of described rear oar propeller hub 5, bow oar spinner 4, bow oar propeller hub 2 is circle; Rear oar propeller hub 5 and the bus of bow oar spinner 4 are one section of coherent sinusoidal segments 7, and wherein, oar propeller hub 5 diameter is greater than the diameter of bow oar spinner 4; The tangent line of sinusoidal segments 7 curve two ends is parallel with the axis 8 of screw propeller; When driving the host work of bow oar, bow oar propeller hub 2 drives bow oar blade 1 and bow oar spinner 4 to rotate, and bow oar blade 1 produces thrust, releases backward simultaneously and rotates wake flow, and near bow oar propeller hub 2, flowing laminating bow oar spinner 4 flows to rear oar propeller hub 5; When after driving, the electrical motor of oar works, rear oar blade 6 rotates recovery bow oar and rotates wake flow, thus recuperated energy, the incoming flow of bow oar spinner 4 is smooth-going to be flow through, and does not produce too much dissipation of vorticity.
The technical program provides a set of design type to turning oar bow oar spinner and rear oar propeller hub form fit, focuses on the reasonableness of its hydrodynamic performance, thus can reach energy-conservation object.
Further, described bow oar propeller hub 2 is cylindrical, and its diameter is identical with the front end of described bow oar spinner 4, and both smoothly dock.
Further, described bow oar blade 1 is integral type structure with bow oar propeller hub 2.
Further, if the diameter of bow oar is D, be that the face blend fairing of 0.4%D is excessive at the terminal edge of bow oar spinner 4 by radius; Radius is adopted to be that the face blend of 1.2%D carrys out fairing at the front edge of rear oar propeller hub 5 excessive; Gap between bow oar spinner 4 and rear oar propeller hub 5 is 1%D.
Further, the shape of sinusoidal segments 7 is determined jointly to be determined by the distance L between the radius r of the radius R of electrical motor gondola 3 ship's head end and bow oar propeller hub 2 stern direction end and this two end faces; In XOY system of axes, initial point O is positioned at the home position of electrical motor gondola 3 ship's head end face circle, and X-axis positive dirction points to bow, and vertically upward, then sinusoidal segments 7 shape is expressed as Y-axis positive dirction:
Beneficial effect of the present invention is:
1) taking into full account turning paddle type formula to hub eddyloss, pattern being connected to propeller hub spinner and being optimized design, avoid producing a large amount of whirlpools, thus avoid the loss of energy, play better energy-saving effect.
2) bow oar propeller hub is designed to cylindrical, breaks the conventional design of traditional round table-like design type.
3) oar propeller hub external diameter is greater than bow oar propeller hub afterwards, holds rear greatly, has also broken the preceding conventional design of the large end of prior art.
4) sinusoidal segments bus is well-designed, and by a large amount of simulations sine curve line style selected best with test, and rear oar propeller hub and the corresponding edge of bow oar spinner are carried out to the circular arc chamfering design of certain radius, effect of optimization more simultaneously.
5) leave specific gap between oar propeller hub and bow oar spinner afterwards, take into account the safety in design and operating efficiency.
Accompanying drawing explanation
Fig. 1 is that the present invention is to the schematic perspective view turning oar propeller hub connection structure before and after oar.Because structure division of expressing emphatically required for the present invention relates to the line style of smooth excessiveness, pure line frame graph is difficult to clear expression, and therefore Fig. 1 adopts sharply marginated design sketch to express.
Fig. 2 is the line frame graph corresponding with Fig. 1.
Fig. 3 is that the present invention is to the front view turning oar propeller hub connection structure before and after oar.
In figure, 1 bow oar blade; 2 bow oar propeller hubs; 3 gondolas (including electrical motor); 4 bow oar spinners; Oar propeller hub after 5; Oar blade after 6; 7 design curves; Oar axis before and after 8.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
See Fig. 1-Fig. 3, a kind of propeller hub and spinner linked vector graph being applicable to counter rotating propeller system.This design ap-plication, on bow oar propeller hub, bow oar spinner and rear oar propeller hub, by cooperatively interacting between shape, reaches energy-conservation object.
This structural shape primarily of unconventional bow oar propeller hub size, special shape bow oar spinner, and coordinates the rear oar propeller hub shape of bow oar wake flow jointly to form.Its structural relation is as follows:
As shown in accompanying drawing 1-Fig. 3, bow oar is made up of 1,2,4 three parts; Rear oar is made up of 5,6 two parts, and then oar is driven by the motor M in 3; Front and back oar coaxial line, 8 represent these axis; 7 have marked one section of sine curve, and this sine curve is core of the present invention, and whether energy-conservation the current that its profile design determines propeller hub near zone are.
The conventional bow oar propeller hub to turning oar adopts the shape of round platform, and hold at ship's head greatly, small end is direction on the quarter, the design innovates and adopts cylindrical propeller hub 2, compared to the preceding situation of large end, be more conducive to energy-conservation, have larger intensity and rational distribution of weight relative to the posterior situation of large end; Bow oar blade 1 and propeller hub 2 one, bow oar spinner 4 is installed on one end, stern direction of bow oar propeller hub 2, and its ship's head end diameter is equal with bow oar hub diameter, and its side coincides with curve 7 and rotates the curved surface formed around oar axis 8; Spinner 4 terminal edge by radius be the face blend fairing of 0.4%D excessively (D represents bow oar diameter, lower with); After electrical motor M in gondola 3 drives, oar propeller hub 5 rotates together with rear oar blade 6, and the side of rear oar propeller hub 5 coincides with curve 7 equally and rotates the curved surface formed around oar axis 8, and it is excessive that its ship's head end employing radius is that the face blend of 1.2%D carrys out fairing; Guarantee that the gap between bow oar spinner 4 and rear oar propeller hub 5 is 1%D.
Shape for sinusoidal segments 7 is determined jointly to determine primarily of the distance L between the radius R of gondola 3 ship's head end and the radius r of bow oar propeller hub 2 stern direction end and this two end faces.In XOY system of axes, initial point O is positioned at the home position of gondola 3 ship's head end face circle, and X-axis positive dirction points to bow, and vertically upward, then its shape can be expressed as Y-axis positive dirction:
The level and smooth fairing of sine curve, a upper crest is mild to nearest trough process mesorelief, thus too much degradation of energy can not be caused, the tangent line of curve two ends is parallel with the axis 8 of screw propeller simultaneously ensures the excessive fairing with front and back works, as shown in accompanying drawing 1,3.
The present invention is the design of given shape, after Practical is installed, is the works that main frame or generator rotation drive, without the need to special operation.
When driving the host work of bow oar, bow oar propeller hub drives blade and spinner to rotate, and blade generation thrust is released backward simultaneously and rotated wake flow, oar propeller hub after the laminating bow oar spinner that flows near bow oar propeller hub flows to; When after driving, the electrical motor of oar works, rear oar rotates recovery bow oar and rotates wake flow, thus recuperated energy, the incoming flow of bow oar spinner is smooth-going to be flow through, and does not produce too much dissipation of vorticity.
Claims (5)
1., to turning an oar propeller hub connection structure before and after oar, it is characterized in that:
Comprise the bow oar of coaxial setting, rear oar; Bow oar is driven by the automotive gas turbine of hull interior or motor, and rear oar is driven by the electrical motor gondola (3) of its afterbody;
Described bow oar comprises bow oar blade (1), bow oar propeller hub (2), bow oar spinner (4); Described rear oar comprises rear oar propeller hub (5), rear oar blade (6);
The cross-sectional plane of described rear oar propeller hub (5), bow oar spinner (4), bow oar propeller hub (2) is circle;
Rear oar propeller hub (5) and the bus of bow oar spinner (4) are one section of coherent sinusoidal segments (7), and wherein, oar propeller hub (5) diameter is greater than the diameter of bow oar spinner (4);
The tangent line of sinusoidal segments (7) curve two ends is parallel with the axis (8) of screw propeller;
When driving the host work of bow oar, bow oar propeller hub (2) drives bow oar blade (1) and bow oar spinner (4) to rotate, bow oar blade (1) produces thrust, release backward simultaneously and rotate wake flow, oar propeller hub (5) after laminating bow oar spinner (4) of flowing near bow oar propeller hub (2) flows to; When after driving, the electrical motor of oar works, the rotation of rear oar blade (6) is reclaimed bow oar and is rotated wake flow, thus recuperated energy, the incoming flow of bow oar spinner (4) is smooth-going to be flow through, and does not produce too much dissipation of vorticity.
2. as claimed in claim 1 to turning oar propeller hub connection structure before and after oar, it is characterized in that: described bow oar propeller hub (2) is cylindrical, its diameter is identical with the front end of described bow oar spinner (4), and both smoothly dock.
3. as claimed in claim 1 to turning oar propeller hub connection structure before and after oar, it is characterized in that: described bow oar blade (1) and bow oar propeller hub (2) they are integral type structure.
4. as claimed in claim 1 to turning oar propeller hub connection structure before and after oar, it is characterized in that: set the diameter of bow oar as D, is that the face blend fairing of 0.4%D is excessive at the terminal edge of bow oar spinner (4) by radius; Radius is adopted to be that the face blend of 1.2%D carrys out fairing at the front edge of rear oar propeller hub (5) excessive; Gap between bow oar spinner (4) and rear oar propeller hub (5) is 1%D.
5. as claimed in claim 1 to turning oar propeller hub connection structure before and after oar, it is characterized in that:
The shape of sinusoidal segments (7) is determined jointly to be determined by the distance L between the radius r of the radius R of electrical motor gondola (3) ship's head end and bow oar propeller hub (2) stern direction end and this two end faces; In XOY system of axes, initial point O is positioned at the home position of electrical motor gondola (3) ship's head end face circle, and X-axis positive dirction points to bow, and vertically upward, then sinusoidal segments (7) shape is expressed as Y-axis positive dirction:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005267.9A CN105523160A (en) | 2016-01-05 | 2016-01-05 | Hub connecting structure of forward propeller and rear propeller of contrarotating propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005267.9A CN105523160A (en) | 2016-01-05 | 2016-01-05 | Hub connecting structure of forward propeller and rear propeller of contrarotating propeller |
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| Publication Number | Publication Date |
|---|---|
| CN105523160A true CN105523160A (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610005267.9A Pending CN105523160A (en) | 2016-01-05 | 2016-01-05 | Hub connecting structure of forward propeller and rear propeller of contrarotating propeller |
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| CN (1) | CN105523160A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422318A (en) * | 2019-07-10 | 2019-11-08 | 沈阳航空航天大学 | A kind of coaxial co-axial contra rotating propeller of adaptive strain axial spacing |
| CN110481759A (en) * | 2019-09-18 | 2019-11-22 | 大连理工大学 | A kind of blade allosteric type across medium aircraft |
| CN110525621A (en) * | 2019-03-29 | 2019-12-03 | 赛青松 | Rudder balance and Powerpush Unit peculiar to vessel |
| CN110979613A (en) * | 2019-12-26 | 2020-04-10 | 中国海洋大学 | Duck-type hydrodynamic layout tandem propeller and design method thereof |
| CN114750916A (en) * | 2022-06-08 | 2022-07-15 | 华东交通大学 | Ship propeller device with auxiliary propeller |
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| CN101678885A (en) * | 2007-06-01 | 2010-03-24 | 三星重工业株式会社 | Contra-rotating propeller supported on rudder horn of ship |
| KR20110016252A (en) * | 2009-08-11 | 2011-02-17 | 한국해양연구원 | Rudder-stock installed electric motor driven contra-rotating propeller for improving propulsion efficiency |
| CN103347780A (en) * | 2011-01-31 | 2013-10-09 | Abb有限公司 | Arrangement for steering a ship and for supplying power to its propulsion system |
| CN104443333A (en) * | 2014-11-28 | 2015-03-25 | 中国船舶重工集团公司第七○二研究所 | Rudder ball type contra-rotating propeller |
| CN104540729A (en) * | 2012-08-22 | 2015-04-22 | 三菱重工业株式会社 | Contra-rotating propeller propulsion-type ship |
| CN205440823U (en) * | 2016-01-05 | 2016-08-10 | 上海船舶研究设计院 | To changeing oar front and back oar propeller hub connection structure |
-
2016
- 2016-01-05 CN CN201610005267.9A patent/CN105523160A/en active Pending
Patent Citations (8)
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| CN1729123A (en) * | 2002-12-20 | 2006-02-01 | Abb有限公司 | Arrangement in a propulsion system |
| CN100513255C (en) * | 2003-04-07 | 2009-07-15 | 瓦特西拉芬兰有限公司 | Propelling unit for sea ship |
| CN101678885A (en) * | 2007-06-01 | 2010-03-24 | 三星重工业株式会社 | Contra-rotating propeller supported on rudder horn of ship |
| KR20110016252A (en) * | 2009-08-11 | 2011-02-17 | 한국해양연구원 | Rudder-stock installed electric motor driven contra-rotating propeller for improving propulsion efficiency |
| CN103347780A (en) * | 2011-01-31 | 2013-10-09 | Abb有限公司 | Arrangement for steering a ship and for supplying power to its propulsion system |
| CN104540729A (en) * | 2012-08-22 | 2015-04-22 | 三菱重工业株式会社 | Contra-rotating propeller propulsion-type ship |
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| CN205440823U (en) * | 2016-01-05 | 2016-08-10 | 上海船舶研究设计院 | To changeing oar front and back oar propeller hub connection structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525621A (en) * | 2019-03-29 | 2019-12-03 | 赛青松 | Rudder balance and Powerpush Unit peculiar to vessel |
| CN110422318A (en) * | 2019-07-10 | 2019-11-08 | 沈阳航空航天大学 | A kind of coaxial co-axial contra rotating propeller of adaptive strain axial spacing |
| CN110422318B (en) * | 2019-07-10 | 2022-07-19 | 沈阳航空航天大学 | Coaxial contra-rotating propeller with self-adaptive variable axial spacing |
| CN110481759A (en) * | 2019-09-18 | 2019-11-22 | 大连理工大学 | A kind of blade allosteric type across medium aircraft |
| CN110979613A (en) * | 2019-12-26 | 2020-04-10 | 中国海洋大学 | Duck-type hydrodynamic layout tandem propeller and design method thereof |
| CN114750916A (en) * | 2022-06-08 | 2022-07-15 | 华东交通大学 | Ship propeller device with auxiliary propeller |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160427 |
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| RJ01 | Rejection of invention patent application after publication |