CN208325593U - A kind of antiwind rudder blade of energy-saving and noise-reducing - Google Patents
A kind of antiwind rudder blade of energy-saving and noise-reducing Download PDFInfo
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- CN208325593U CN208325593U CN201820916015.6U CN201820916015U CN208325593U CN 208325593 U CN208325593 U CN 208325593U CN 201820916015 U CN201820916015 U CN 201820916015U CN 208325593 U CN208325593 U CN 208325593U
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- rudder
- rudder blade
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Abstract
The purpose of this utility model is to provide a kind of antiwind rudder blades of energy-saving and noise-reducing, including rudder blade, rudder stock, rudder stock is fixed on rudder blade, the rudder blade is fish tail fin, the center line in rudder blade vertical section and the axis of propeller are located in a straight line, the two sides up and down in rudder blade vertical section are symmetrical about its center line, the distance of highest point distance center line is L on the upside of rudder blade vertical section, convex sword is provided in the exterior circumferential of rudder stock, the length of convex sword is greater than or equal to the length of rudder stock in water, and the diameter of rudder stock is D.The utility model can effectively reduce water flow to the impact of rudder blade and resistance, the phenomenon that of being wrapped in rudder stock such as reduce noise vibration, while water plant can be reduced, finally play the antiwind effect of energy-saving vibration-reduction.
Description
Technical field
The utility model relates to a kind of shipping propelling equipments, specifically shipping rudder blade.
Background technique
Shipping-direction stability and turning quality are the important indicators of Ship Maneuverability quality, and shipping rudder system device is that ship is protected
The important equipment held and changed course.
There are many type of rudder, are distinguished according to the section shape of rudder blade, there is flat plate rudder and streamline redder.Flat plate rudder rudder blade is by gold
Belong to plate or plank is made, horizontal profile is linear, and structure is simple.The rudder blade of streamline redder is made with horizontal baffle and vertical partition plate
For skeleton, the hollow body of watertight is made in outer multiple steel plate, and horizontal profile is in airfoil.Currently, streamline redder is widely used, but also deposit
In some open questions.
The complicated tail flow field that propeller generates can generate larger resistance to water-flow and impact to rudder blade thereafter, to cause
Additional energy consumption and noise, it is more serious to cause rudder blade partial cavity, rudder blade is caused to damage；And rudder blade is located under water,
Rudder blade and rudder stock junction and rudder stock itself are easy winding water plant, sundries, are difficult to artificial removal during navigation.
Summary of the invention
The purpose of this utility model is to provide the generations that can effectively reduce energy dissipation and noise and vacuole, while can
A kind of antiwind rudder blade for the energy-saving and noise-reducing for preventing underwater water plant and other sundries from winding.
Purpose of the utility model is realized as follows:
A kind of antiwind rudder blade of energy-saving and noise-reducing of the utility model, it is characterized in that: including rudder blade, rudder stock, rudder stock is fixed on
On rudder blade, the rudder blade is fish tail fin, and the center line in rudder blade vertical section and the axis of propeller are located in a straight line, rudder blade
The two sides up and down in vertical section are symmetrical about its center line, and the distance of highest point distance center line is L, rudder stock on the upside of rudder blade vertical section
Exterior circumferential on be provided with convex sword, the length of convex sword is greater than or equal to the length of rudder stock in water, and the diameter of rudder stock is D.
The utility model can also include:
1, the surface of rudder blade is arranged flow guide bar, and the width of flow guide bar is 0.02L, and the height of projection of flow guide bar is 0.05 ±
0.005 meter.
2, using rudder blade vertical section center line as abscissa line, flow guide bar be distributed in respectively abscissa line ± 0.15L, ±
0.3L, ± 0.45L, at ± 0.6L, at ± 0.75L, ± 0.9L.
3, rudder blade surface is covered with elastic material coating, and figure layer thickness is at least 0.02 meter, and elastic material meets tensile strength
More than or equal to 2MPa, elongation at break is greater than or equal to 150%.
4, the height of convex sword is 0.1D ± 0.01D.
The advantage of the utility model is:
1, tail fin shape rudder blade meets bionics principle, is capable of forming more preferably flow field, effectively reduces the resistance of rudder generation, reaches
To the purpose for saving energy.
2, flow guide bar is able to bear complicated tail flow field after propeller, reduces impact of the turbulent flow to rudder blade, and then reduce resistance
Power and noise are finally reached the purpose of energy conservation and noise reduction.
3, the sound of water impact is effectively reduced in the elastic surface coating on rudder blade surface, achievees the purpose that noise reduction, while can
Certain vacuole is born, internal metal part is protected.
4, the convex sword on rudder stock can effectively reduce water plant and the winding of other foreign matters.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is A-A cross-sectional view；
Fig. 3 is rudder stock cross-sectional view.
Specific embodiment
It illustrates with reference to the accompanying drawing and the utility model is described in more detail:
In conjunction with Fig. 1-3, a kind of antiwind rudder blade of energy-saving and noise-reducing of the utility model is arranged by propeller 5, comprising: rudder blade
1, flow guide bar 2, rudder stock 3, convex sword 4.
Rudder blade 1 is designed as fish tail fin according to bionics principle, and caudal-fin models meet parabolic equation, by center line pair
Claim, is minimum value at ordinate 0 using rudder blade center line as the horizontal axis of coordinate system, is maximum value at ± L.Tail fin and upper and lower end face
It smoothly transits.
2 horizontal homogeneous of diversion pipe is distributed in rudder blade surface, and flow guide bar width is 0.02L, and height of projection is 0.05 meter, respectively
Be distributed in ± 0.15L, ± 0.3L, ± 0.45L, at ± 0.6L, at ± 0.75L, ± 0.9L, every flow guide bar head and the tail both ends and rudder
It is seamlessly transitted between limb edge.
1 surface of rudder blade is covered with elastic material coating, and coating layer thickness at least 0.02m, it is big that elastic material should meet tensile strength
In being equal to 2MPa, elongation at break is more than or equal to 150%.
Convex sword 4 is circumferentially distributed on rudderpost 3, convex 4 length of sword is more than or equal to the length of rudder stock 3 in water, and convex 4 height of sword is
0.1D。
As shown in Figure 1, fish caudal-fin models are presented in rudder blade 1, meet parabolic equation, be more suitable for moving under water, tail fin
Shape rudder blade 1 is unfavorable for the formation of Karman vortex street, reduces its destruction to rudder blade.Meanwhile entire 1 surface of rudder blade is covered with elasticity
Material coating, in the enough situations of coating layer thickness, noise caused by water impact and vibration reduce, and achieve the purpose that noise reduction, and
The tensile strength and elongation at break of material guarantee that 1 surface of rudder blade has certain toughness, go back while enhancing anti-vacuole ability
Internal metallic material can be protected.
As shown in Fig. 2, 2 horizontal homogeneous of flow guide bar is distributed in rudder blade surface, flow guide bar width is 0.02L, and height of projection is
It 0.05 meter, is seamlessly transitted between every flow guide bar head and the tail both ends and rudder blade edge.Complicated wake flow passes through rudder blade 1 after propeller, by
Flow guide bar 2 guides turbulent flow, forms uniform flow field, and Reynolds number reduces, and the resistance on rudder blade surface reduces, meanwhile, it is rapid
The impact to rudder blade is flowed to reduce.
As shown in figure 3, the circumferentially distributed convex sword 4 of rudder stock 3, convex 4 length of sword is more than or equal to the length of rudder stock 3 in water, convex sword
Height is 0.1D.Since rudder stock 3 and 1 junction of rudder blade and rudder stock 3 itself easily wind the sundries such as water plant, the utility model is in rudder
Increase convex sword 4 on axis 3, once water plant winding is to a certain extent, blade 4 gives water plant larger pressure, and water plant is caused to be broken, and is detached from
Rudderpost, to achieve the purpose that antiwind.
Claims (6)
1. a kind of antiwind rudder blade of energy-saving and noise-reducing, it is characterized in that: including rudder blade, rudder stock, rudder stock is fixed on rudder blade, the rudder
Leaf is fish tail fin, and the center line in rudder blade vertical section and the axis of propeller are located in a straight line, above and below rudder blade vertical section
Two sides are symmetrical about its center line, and the distance of highest point distance center line is L on the upside of rudder blade vertical section, in the exterior circumferential of rudder stock
It is provided with convex sword, the length of convex sword is greater than or equal to the length of rudder stock in water, and the diameter of rudder stock is D.
2. the antiwind rudder blade of a kind of energy-saving and noise-reducing according to claim 1, it is characterized in that: water conservancy diversion is arranged in the surface of rudder blade
Item, the width of flow guide bar are 0.02L, and the height of projection of flow guide bar is 0.05 ± 0.005 meter.
3. the antiwind rudder blade of a kind of energy-saving and noise-reducing according to claim 2, it is characterized in that: with rudder blade vertical section center line
For abscissa line, flow guide bar be distributed in respectively ± the 0.15L of abscissa line, ± 0.3L, ± 0.45L, at ± 0.6L, ± 0.75L,
At ± 0.9L.
4. the antiwind rudder blade of a kind of energy-saving and noise-reducing according to claim 1 to 3, it is characterized in that: rudder blade surface is covered with
Elastic material coating, figure layer thickness are at least 0.02 meter, and elastic material meets tensile strength more than or equal to 2MPa, extension at break
Rate is greater than or equal to 150%.
5. the antiwind rudder blade of a kind of energy-saving and noise-reducing according to claim 1 to 3, it is characterized in that: the height of convex sword is
0.1D±0.01D。
6. a kind of antiwind rudder blade of energy-saving and noise-reducing according to claim 4, it is characterized in that: the height of convex sword be 0.1D ±
0.01D。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820916015.6U CN208325593U (en) | 2018-06-13 | 2018-06-13 | A kind of antiwind rudder blade of energy-saving and noise-reducing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820916015.6U CN208325593U (en) | 2018-06-13 | 2018-06-13 | A kind of antiwind rudder blade of energy-saving and noise-reducing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208325593U true CN208325593U (en) | 2019-01-04 |
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ID=64770420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820916015.6U Active CN208325593U (en) | 2018-06-13 | 2018-06-13 | A kind of antiwind rudder blade of energy-saving and noise-reducing |
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| CN (1) | CN208325593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108725733A (en) * | 2018-06-13 | 2018-11-02 | 哈尔滨工程大学 | A kind of antiwind rudder blade of energy-saving and noise-reducing |
| CN111268084A (en) * | 2020-03-18 | 2020-06-12 | 涡阳县信隆船舶附件有限公司 | Marine rudder shaft protection device |
-
2018
- 2018-06-13 CN CN201820916015.6U patent/CN208325593U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108725733A (en) * | 2018-06-13 | 2018-11-02 | 哈尔滨工程大学 | A kind of antiwind rudder blade of energy-saving and noise-reducing |
| CN111268084A (en) * | 2020-03-18 | 2020-06-12 | 涡阳县信隆船舶附件有限公司 | Marine rudder shaft protection device |
| CN111268084B (en) * | 2020-03-18 | 2021-10-26 | 涡阳县信隆船舶附件有限公司 | Marine rudder shaft protection device |
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