CN115339606A

CN115339606A - Marine variable wing type sail

Info

Publication number: CN115339606A
Application number: CN202210527725.0A
Authority: CN
Inventors: 司小冬; 邱晓峰; 经鹏飞; 杜鹏; 陶杨; 胡彬彬
Original assignee: Wuhan Marine Machinery Plant Co Ltd
Current assignee: Wuhan Marine Machinery Plant Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-11-15

Abstract

The utility model provides a marine variable wing section sail belongs to sail aid in navigation technical field. The marine variable wing sail comprises a plurality of wing skeletons, a first driving assembly, a mast and a skin; each wind wing framework comprises a wing flap, a main body and a nose wing, the main body is connected with the mast, the extending direction of the main body is perpendicular to the mast, the main bodies of the wind wing frameworks are arranged along the length direction of the mast, and the wing flap and the nose wing are respectively connected to two opposite sides of the corresponding main body along the direction perpendicular to the mast; the first driving assembly is connected with the wind wing framework and used for driving the flap and the nose wing to swing relative to the corresponding main body so as to change the bending degree of the inner side and the outer side of the airfoil section of the wind wing framework, and the inner side and the outer side are respectively positioned on two sides of the extending direction of the wind wing framework; the covering is covered outside the wind wing skeletons. According to the wing flap type sail device, the wing flap or the nose wing can swing relative to the main body according to the wind condition, and then the wind area of the wing flap type sail is adjusted.

Description

Marine variable wing type sail

Technical Field

The disclosure belongs to the technical field of sail navigation aid, and particularly relates to a marine variable-airfoil-shaped sail.

Background

More and more ships adopt auxiliary thrust generated by sails to reduce the power of a main engine, so that the aim of saving energy is fulfilled.

In the related art, most sails for ships are airfoil sails. The wing type sail is a wing type with a symmetrical section. The wing type sail comprises a plurality of wing skeletons, a skin and a mast. The plurality of wind wing skeletons are arranged in a stacked mode and are connected in series through masts. The mast is rotatably connected with a rotary driving mechanism on the deck surface of the ship. The covering is covered outside the wind wing skeletons. Therefore, the wing-shaped sail utilizes offshore wind resources, and the attack angle (the included angle between the wing chord line and the incoming wind) of the wing-shaped sail can be adjusted by adjusting the rotation angle of the mast, so that the forward power of the wing-shaped sail is consistent with the ship course as much as possible. Finally, the wing type sail provides auxiliary power for the ship.

However, the profile of the wing sail in the above structure is fixed, which results in poor thrust effect of the wing sail and affects the propulsion efficiency of the wing sail.

Disclosure of Invention

The embodiment of the disclosure provides a variable wing type sail for a ship, which can enable a flap and a nose wing to swing relative to a main body according to the control of instructions according to the wind condition, so as to adjust the profile wing type of the wing type sail, and improve the propulsion efficiency of the sail. The technical scheme is as follows:

the embodiment of the disclosure provides a marine variable-wing-profile sail, which comprises a plurality of wing skeletons, a first driving assembly, a mast and a skin; each wind wing framework comprises a flap, a main body and a nose wing, the main body is connected with a mast, the extending direction of the main body is perpendicular to the mast, the main bodies of the wind wing frameworks are arranged along the length direction of the mast, the nose wing and the flap are respectively connected to the head side and the tail side of the corresponding main body along the direction perpendicular to the mast; the first driving assembly is connected with the wind wing framework and used for driving the flap and the nose wing to swing relative to the corresponding main body so as to change the curvature of the inner side and the outer side of the section of the wind wing framework, the section of the wind wing framework is a section perpendicular to the extending direction of the wind wing framework, and the inner side and the outer side are respectively positioned on two sides of the extending direction of the section of the wind wing framework; the covering is covered outside the wind wing skeletons.

In another implementation manner of the present disclosure, the variable-wing sail further includes a connecting plate vertically connected in series to the flaps, and the length direction of the connecting plate is the same as the axial direction of the mast; for any one of the wind wing skeletons, the flap is hinged with the corresponding main body, and the hinged axis of the flap and the main body is perpendicular to the extending direction of the wind wing skeleton; first drive assembly includes a drive cylinder, a drive cylinder is located wherein at least one on the wind wing skeleton, just the tailpiece of the piston rod of a drive cylinder with be connected the wind wing skeleton corresponds the wing flap is connected, a drive cylinder's cylinder body end with be connected the wind wing skeleton corresponds the main part is connected, the flexible direction of a drive cylinder's piston rod with the extending direction of wind wing skeleton is the same, just the straight line at a drive cylinder piston rod place with the wing flap with the articulated shaft of main part is different lines.

In another implementation manner of the present disclosure, the nose wing is hinged to the corresponding main body, and a hinge axis of the nose wing and the corresponding main body is perpendicular to an extending direction of the wind wing skeleton; the first driving assembly comprises a second driving oil cylinder, the second driving oil cylinder is located at least one of the wind wing frameworks, the piston rod end of the second driving oil cylinder is connected with the corresponding wind wing frameworks, the nose wings are connected, the cylinder body end of the second driving oil cylinder is connected with the corresponding wind wing frameworks, the main body is connected, the telescopic direction of the piston rod of the second driving oil cylinder is the same as the extending direction of the wind wing frameworks, and the straight line where the piston rod of the second driving oil cylinder is located is different from the lines of the hinge shafts of the nose wings and the main body.

In another implementation manner of the present disclosure, for the same wind wing framework, there are two first driving cylinders, and the two first driving cylinders are symmetrically arranged with respect to a straight line where the hinge shafts of the flap and the main body are located as a symmetry axis.

In another implementation manner of the present disclosure, for the same wind wing skeleton, there are two second driving cylinders, and the two second driving cylinders are symmetrically arranged with a straight line where the hinge shaft of the main body and the nose wing are located as a symmetry axis.

In yet another implementation of the disclosure, the flap and the nose wing each have a range of oscillation of ± 15 degrees relative to the corresponding body.

In yet another implementation of the present disclosure, the wind wing frame is a symmetrical structure, and a symmetrical plane of the wind wing frame passes through a chord line of the wind wing frame and is parallel to the axis of the mast.

In another implementation manner of the disclosure, the variable-wing sail further comprises a second driving assembly, the second driving assembly is connected with the bottom end of the mast, and the second driving assembly is used for driving the mast to switch between a first position and a second position, the first position corresponds to the position when the mast is perpendicular to the deck of the ship body, and the second position corresponds to the position when the mast is parallel to the deck of the ship body.

In another implementation manner of the present disclosure, the second driving assembly includes a third driving cylinder, the third driving cylinder is located on one side of the mast, a cylinder body end of the third driving cylinder is hinged to the ship, and a piston rod end of the third driving cylinder is connected to an outer wall of the bottom end of the mast.

In yet another implementation of the present disclosure, the marine variable-profile sail further comprises a solar panel affixed to an outer surface of the skin.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

when the variable wing sail for the ship provided by the embodiment of the disclosure is used as auxiliary power of the ship, the wing sail comprises a plurality of wing skeletons, a first driving assembly, a mast and a covering, and the bottom end of the mast is used for being connected with a slewing driving mechanism, so that the wing sail can be installed on the ship through the mast.

Meanwhile, the first driving assembly can drive the wing flap and the nose wing to swing by a certain angle relative to the main body, so that the bending degree of the inner side and the outer side of the wing-shaped sail can be adjusted at any time, and the wind area of the wing-shaped sail is adjusted according to the wind direction and the wind condition, so that the propulsion efficiency of the wing-shaped sail is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic structural view of an airfoil sail according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram illustrating a connection between a wind wing frame and a first drive assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a wind wing frame according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a wind wing frame according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a wind wing framework after being changed into an airfoil shape according to an embodiment of the disclosure;

fig. 6 is a schematic structural view of a wind wing skeleton attached solar panel provided by the embodiment of the disclosure.

The symbols in the figures represent the following:

1. a wind wing skeleton; 11. a flap; 12. a main body; 13. a nasal ala; 14. lightening holes; 15. an articulation member;

2. a first drive assembly; 21. a first drive cylinder; 22. a second driving oil cylinder;

3. a mast;

4. covering a skin;

5. a connecting plate;

6. a second drive assembly; 61. a third driving oil cylinder; 62. a connecting member;

7. a solar panel.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

For clarity of description of the airfoil sails provided by the disclosed embodiments, the working principle of the airfoil sails is described first.

The wing-shaped sail can provide auxiliary driving force for the ship under the driving of wind energy. The specific principle is as follows:

when the air flows fast, an object that is blocking it in the direction of the air flow is subjected to an impact of the air, which generates dynamic pressure. When the wing-shaped sail runs downwind, the dynamic pressure of air on the wing-shaped sail pushes the ship to advance.

When sailing against the wind, the ship advances under the push of the static pressure of the wind. When the air flow passes through the wing-shaped sail, because the section of the wing-shaped sail is arc-shaped, according to the Bernoulli principle, the air flow in front of the section of the wing-shaped sail has high speed to generate a low-pressure area, so that a pressure difference is generated between the wing-shaped sail and the rear surface of the wing-shaped sail, and the pressure difference enables the wing-shaped sail to generate forward power.

The embodiment of the present disclosure provides a marine variable-profile sail, which includes, as shown in fig. 1, a plurality of sail frames 1, a first driving assembly 2, a mast 3, and a skin 4. The plurality of wind wing skeletons 1 are connected with the mast 3 and are sequentially arranged along the length direction of the mast 3. The first drive assembly 2 is connected to one of the wind foil frames 1. The skin 4 covers the plurality of wind wing skeletons 1.

Fig. 2 is a schematic structural diagram of connection of a wind wing skeleton provided by an embodiment of the present disclosure and a first drive assembly, and in conjunction with fig. 2, each wind wing skeleton 1 includes a flap 11, a main body 12, and a nose wing 13. The main body 12 is connected to the mast 3, and the main body 12 extends in a direction perpendicular to the mast 3. The main bodies 12 of the plurality of wind turbine blades 1 are arranged along the length direction of the mast. Flaps 11 and nosewings 13 are attached to opposite sides of the corresponding main body 12, respectively, in a direction perpendicular to the mast 3.

The first driving assembly 2 is used for driving the flaps 11 and the nosewings 13 to swing relative to the corresponding main body 12 so as to change the curvature of the inner side and the outer side of the section of the wind wing framework 1, wherein the section of the wind wing framework 1 is a section perpendicular to the extending direction of the wind wing framework, and the inner side and the outer side are respectively positioned on two sides of the extending direction of the section of the wind wing framework 1.

When the variable wing sail for the ship provided by the embodiment of the disclosure is used as auxiliary power of the ship, the wing sail comprises a plurality of wing skeletons 1, a first driving assembly 2, a mast 3 and a skin 4, and the bottom end of the mast 3 is used for being connected with a slewing driving mechanism, so that the wing sail can be installed on the ship through the mast 3.

Meanwhile, the first driving assembly 2 can drive the flap 11 and the nose wing 13 to swing relative to the main body 12, so that the curvatures of the inner side and the outer side of the wing-shaped sail can be adjusted at any time, the camber of the arch formed by the wing-shaped sail can be adjusted according to the wind direction and the wind condition, the wind area of the wing-shaped sail is adjusted, and the propulsion efficiency of the wing-shaped sail is greatly improved.

For example, when the ship runs and the wing profile sail is downwind, the flap 11 and the nose wing 13 can be driven by the first driving assembly 2 to swing relative to the main body 12, so that the chord length of the cross section of the wing profile sail is maximized, the wind area of the wing profile sail is maximized, and the thrust is maximized. When the ship runs and the wing profile sail faces the wind, the flap 11 and the nose wing 13 can be driven by the first driving assembly 2 to swing relative to the main body 12, so that the bending degree of the inner side and the bending degree of the outer side of the wing profile sail are the maximum (the direction from the outer side to the inner side is opposite to the wind direction), and the wind area of the wing profile sail is the maximum, and the pressure difference and the pushing force are the maximum.

In this embodiment, the flap 11 is longer than the nose wing 13. The flap 11 is located on the outer side of the vessel in relation to the nose wing 13 in the direction of travel.

For example, the positions of the inner side and the outer side of the airfoil sail can be seen as L in fig. 2 _{Inner part} And L _{Outer cover} . Wherein L is _{Inner part} The arc of the airfoil sail lying on one side of the line a, L _{Outer cover} Is the arc of the airfoil sail on the other side of the line a.

In the present embodiment, when the flap 11 and the nose wing 13 are in the original state (i.e. not swinging relative to the main body 12), the extending direction of the wind wing skeleton 1 is the chord length direction of the wind wing skeleton 1, see the direction of the straight line a in fig. 2.

The section of the airfoil sail is in an irregular circular arc shape, and the point at the pointed tail of the section of the airfoil sail is the trailing edge of the airfoil sail (as shown as a point P in FIG. 2). On the profile line of the profile of the airfoil sail, there is a point with the largest distance from the trailing edge, which is called the leading edge of the airfoil sail (as shown in point O in fig. 2). The straight line connecting the leading edge and the trailing edge is a chord line of the airfoil sail (as shown by a straight line a in fig. 2), wherein the length of the line section PO is the length of the chord line of the airfoil sail.

Illustratively, the bottom of the mast 3 is connected to the vessel by a slewing drive mechanism. Therefore, the rotation angle of the mast 3 can be conveniently adjusted, and the mast 3 can enable the wing-shaped sail to freely rotate for 360 degrees under the driving of the slewing driving mechanism so as to adapt to the wind direction.

Fig. 3 is a schematic structural diagram of a wind wing framework provided in an embodiment of the present disclosure, and in the embodiment, in combination with fig. 3, a plurality of weight-reducing holes 14 spaced from each other are arranged on the flap 11, the main body 12 and the nose wing 13 along the extending direction of the wind wing framework 1.

In the implementation manner, the weight of the wind wing framework 1 can be greatly reduced by the arrangement of the lightening holes 14, so that the wing type sail can be lightened.

In this embodiment, the shape of the lightening holes 14 may be various, such as trapezoid, triangle, etc. The present disclosure is not limited as long as it can be matched with the shapes of the flap 11, the body 12, and the nose wing 13 without affecting the normal use of the flap 11, the body 12, and the nose wing 13.

Referring to fig. 1 and 2 again, optionally, the variable-airfoil sail for ships further includes a connecting plate 5, the connecting plate 5 is long, the connecting plate 5 is vertically connected in series to the plurality of flaps 11, and the length direction of the connecting plate 5 is the same as the axial direction of the mast 3.

For any one of the wing skeletons 1, the flap 11 is hinged with the corresponding main body 12, and the hinge axis of the flap 11 and the main body 12 is perpendicular to the extending direction of the wing skeleton 1.

The first driving assembly 2 comprises a first driving oil cylinder 21, the first driving oil cylinder 21 is positioned on at least one wind wing framework 1, a piston rod end of the first driving oil cylinder 21 is connected with a wing flap 11 corresponding to the connected wind wing framework 1, a cylinder body end of the first driving oil cylinder 21 is connected with a main body 12 corresponding to the connected wind wing framework 1, the extension direction of a piston rod of the first driving oil cylinder 21 is the same as the extension direction of the wind wing framework 1, and the straight line where the piston rod of the first driving oil cylinder 21 is positioned is different from the hinge axis of the wing flap 11 and the main body 12

In the above-described embodiment, since the flap 11 is hinged to the corresponding main body 12, and the hinge axis between the flap 11 and the main body 12 is perpendicular to the extending direction of the wind vane skeleton 1, the flap 11 swings with respect to the main body 12 under the driving of the first drive cylinder 21.

And because the web 5 is used to string together a plurality of flaps 11. Thus, when one of the flaps 11 is swung with respect to the main body 12, all the other flaps 11 are also swung together by the connecting plate 5.

That is, if one flap 11 swings under the drive of the first drive cylinder 21, the other flaps 11 follow the swing.

Illustratively, the telescopic end of the first drive cylinder 21 is connected with the corresponding flap 11, and the fixed end of the first drive cylinder 21 is connected with the corresponding main body 12. The correspondence here means that the first drive cylinder 21 is connected to the main body 12 and the flap 11 of the wind wing frame 1 in which it is located.

In the present embodiment, the hinge axis (point a in fig. 2) between the flap 11 and the main body 12 is located in the chord direction of the wind wing frame 1 (the direction of the straight line a in fig. 2), and the first drive cylinder 21 is located on the side of the hinge axis between the flap 11 and the main body 12.

Fig. 4 is a schematic structural diagram of a wind wing framework provided by an embodiment of the present disclosure, and in conjunction with fig. 4, for example, for any wind wing framework 1, the flap 11 and the main body 12 are hinged together through a hinge 15. The fixed end of the hinge 15 is connected to the main body 12 and the rotating end of the hinge 15 is connected to the flap 11. This facilitates the articulation between the flap 11 and the body 12.

Referring again to fig. 2, the nose piece 13 is hinged to the corresponding body 12, and the hinge axis of the nose piece 13 and the corresponding body 12 is perpendicular to the extending direction of the air vane skeleton 1.

The first driving assembly 2 comprises a second driving oil cylinder 22, the second driving oil cylinder 22 is located on at least one of the wind wing frameworks 1, a piston rod end of the second driving oil cylinder 22 is connected with a nose wing 13 corresponding to the connected wind wing framework 1, a cylinder body end of the second driving oil cylinder 22 is connected with a main body 12 corresponding to the connected wind wing framework 1, the extending direction of a piston rod of the second driving oil cylinder 22 is the same as the extending direction of the wind wing framework 1, and a straight line where the piston rod of the second driving oil cylinder 22 is located is different from a hinged shaft of the nose wing 13 and the main body 12.

In the above implementation, the second driving cylinder 22 is used for driving one of the nasal wings 13 to swing relative to the main body 12. Because the nose wings 13 are short and the skin 4 is sleeved outside, when one of the nose wings 13 swings relative to the main body 12, the other nose wings 13 can also swing under the driving of the skin 4. That is, when one of the nose flaps 13 swings by the driving of the second driving cylinder 22, the other nose flaps 13 also swing.

Illustratively, the telescopic end of the second driving cylinder 22 is connected with the corresponding nose wing 13, and the fixed end of the second driving cylinder 22 is connected with the corresponding main body 12. The correspondence here means that the second drive cylinder 22 is connected to the nose wing 13 and the main body 12 of the wing frame 1.

Exemplarily, the first driving assemblies 2 may be 2 groups, wherein two groups of the first driving assemblies 2 are respectively arranged on the corresponding wind wing skeletons 1 along the length direction of the connection plate 5.

In this embodiment, in order to increase the firmness of connection between first drive assembly 2 and the corresponding wind wing skeleton 1, wind wing skeleton 1 connected with first drive assembly 2 is a reinforced wind wing skeleton, i.e., the reinforced wind wing skeleton may not be provided with lightening holes, and a plurality of reinforcing rib structures may also be added to the structure of original wind wing skeleton 1, so as to increase the strength of wind wing skeleton 1.

In this embodiment, the length of the nose wing 13 is smaller than the length of the flap 11 along the chord length direction of the wind wing frame 1. Therefore, the wings 13 may not need to be connected in series with the connecting plate 5. Of course, in order to make the nose wing 13 swing flexibly, the nose wing 13 may be connected in series through the connecting plate 5, similar to the connection manner of the flap 11, which is not limited by the present disclosure.

Illustratively, for any one of the wing frames 1, the nose wing 13 is hinged to the main body 12 via a hinge 15. The fixed end of hinge member 15 is connected to body 12 and the rotating end of hinge member 15 is connected to nosepiece 13. This facilitates articulation between the wings 13 and the body 12.

In the present embodiment, the hinge axis (point B in fig. 2) between the nose wing 13 and the main body 12 is located in the chord direction of the nose wing 13, and the second drive cylinder 22 is located on the side of the hinge axis between the nose wing 13 and the main body 12.

Optionally, for the same wind wing framework 1, there are two first drive cylinders 21, and the two first drive cylinders 21 are symmetrically arranged on one wind wing framework 1 by taking a straight line where the hinge shafts of the flap 11 and the main body 12 are located as a symmetry axis.

In the implementation manner, two first driving cylinders 21 are arranged on the same wind wing framework 1, so that one of the first driving cylinders 21 can be used as an operating cylinder, and the other one can be used as a standby cylinder, so as to avoid that the use of one of the first driving cylinders 21 is affected due to the fault.

Optionally, for the same wind vane framework 1, there are two second driving oil cylinders 22, and the two second driving oil cylinders 22 are symmetrically arranged on one wind vane framework 1 by taking the straight line where the hinge shafts of the nose wing 13 and the main body 12 are located as a symmetry axis.

In the implementation manner, two second driving cylinders 22 are arranged on the same wind wing framework 1, so that one of the second driving cylinders 22 can be used as an operating cylinder, and the other one can be used as a standby cylinder, so as to avoid that the use of one of the second driving cylinders 22 is affected due to a fault.

In the present embodiment, the swing range of the flap 11 and the nose wing 13 with respect to the corresponding main body 12 is ± 15 degrees.

In the above implementation, the swing ranges of the flap 11 and the nose wing 13 are set to the above ranges, which enables the airfoil profile and the attack angle of the airfoil sail to be optimized, thereby generating efficient propulsive force.

That is, the angle α in fig. 5 is 15 degrees. This is the maximum extent of downward swing of the flap 11 according to fig. 5. Similarly, the swing range of the nose flap 13 is also the same.

Illustratively, the wind wing frame 1 is a symmetrical structure, and the symmetrical plane of the wind wing frame 1 passes through the chord line of the wind wing frame 1 and is parallel to the axis of the mast 3.

In the above implementation, the wing frame 1 is arranged in a symmetrical structure, so that the profile of the wing sail has a symmetrical structure when the flap 11 and the nose wing 13 do not swing, that is, the inside and the outside are symmetrical with respect to the chord length.

The frame 1 of the wing sail is a rigid structure. For example, the airfoil sail is a symmetrical type NACA0009 airfoil sail.

Referring again to fig. 1, optionally, the variable wing sail for ships further includes a second driving assembly 6, the second driving assembly 6 is connected to the bottom end of the mast 3, and the second driving assembly 6 is used for driving the mast 3 to switch between a first position and a second position, where the first position is a position corresponding to the mast 3 being perpendicular to the deck of the ship body, and the second position is a position corresponding to the mast 3 being parallel to the deck of the ship body.

In the above implementation, the second driving assembly 6 is used for driving the wing sail to be laid flat and retracted. That is, when the wing-shaped sail is not used or is extremely bad in weather, the wing-shaped sail can be driven to the second position by the second driving assembly 6 to be placed on the ship so as to avoid damaging the wing-shaped sail.

Illustratively, the second driving assembly 6 includes a third driving cylinder 61, a fixed end of the third driving cylinder 61 is hinged with the vessel, and a telescopic end of the third driving cylinder 61 is connected with an outer wall of the bottom end of the mast 3.

In the above implementation, the third driving cylinder 61 can conveniently drive the mast 3 so as to switch the mast 3 between the first position and the second position.

Optionally, the second driving assembly 6 further includes a connecting member 62, the connecting member 62 is sleeved on the outer wall of the bottom end of the mast 3, and the telescopic end of the third driving cylinder 61 is connected with the connecting member 62.

In the above implementation, the connection 62 is used to connect the third drive cylinder 61 with the mast 3.

Illustratively, there may be two third driving cylinders 61, two third driving cylinders 61 are located on the same side of the axis of the mast 3, and the two third driving cylinders 61 are respectively hinged with the deck surface of the ship.

By arranging two third drive cylinders 61, the driving force of the third drive cylinders 61 can be increased, thereby improving the driving efficiency of the second drive assembly 6.

Fig. 6 is a schematic structural view of the wind wing framework attached solar panel provided by the embodiment of the present disclosure, and in conjunction with fig. 6, optionally, the marine variable-wing sail further includes a solar panel 7, and the solar panel 7 is attached to the outer surface of the skin 4.

In the above implementation, the solar panels 7 are used to absorb sunlight in order to utilize the solar energy for use on the ship. Such as for example for the illumination of ships, etc.

In this embodiment, the solar panel 7 is attached to the skin 4 corresponding to the main body 12.

The working mode of the marine variable-wing sail provided by the embodiment of the disclosure is briefly described as follows:

when a ship runs and the wing profile sail is in the downwind direction, the wing profile sail can be driven by the first driving assembly 2 to swing relative to the main body 12 in the wing flap 11 and the nose wing 13, so that the length of the wing profile sail in the extending direction of the wing profile sail is the largest, the wind area of the wing profile sail is the largest, and the thrust is the largest.

When the ship runs and the wing profile sail faces the side wind, the flap 11 and the nose wing 13 can be driven by the first driving assembly 2 to swing relative to the main body 12, so that the inner side length of the wing profile sail is the smallest, and the outer side length of the wing profile sail is the largest (the direction from the outer side to the inner side is opposite to the wind direction), and thus, the wind area of the wing profile sail is the largest, and the pressure difference and the pushing force are the largest.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims

1. A variable wing profile sail for ships is characterized by comprising a plurality of wing skeletons (1), a first driving assembly (2), a mast (3) and a skin (4);

each wind wing framework (1) comprises a flap (11), a main body (12) and a nose wing (13), the main body (12) is connected with the mast (3), the extending direction of the main body (12) is perpendicular to the mast (3), the main bodies (12) of the wind wing frameworks (1) are arranged along the length direction of the mast (3), and the nose wing (13) and the flap (11) are respectively connected to the head and the tail of the corresponding main body (12) along the direction perpendicular to the mast (3);

the first driving assembly (2) is connected with the wind wing framework (1), the first driving assembly (2) is used for driving the flap (11) and the nose wing (13) to swing relative to the corresponding main body (12) so as to change the curvature of the inner side and the outer side of the section of the wind wing framework (1), the section of the wind wing framework (1) is a section perpendicular to the extending direction of the wind wing framework (1), and the inner side and the outer side are respectively positioned on two sides of the extending direction of the section of the wind wing framework (1);

the covering (4) is coated outside the wind wing skeletons (1).

2. The sail for sails with variable profile as claimed in claim 1, characterized in that it further comprises a linking plate (5), said linking plate (5) being vertically connected in series to a plurality of said flaps (11), and the length direction of said linking plate (5) being the same as the axial direction of said mast (3);

for any one of the wind wing skeletons (1), the flap (11) is hinged with the corresponding main body (12), and the hinging axis of the flap (11) and the main body (12) is vertical to the extending direction of the wind wing skeleton (1);

first drive assembly (2) include first actuating cylinder (21), first actuating cylinder (21) are located wherein at least one on wind wing skeleton (1), just the tailpiece of the piston rod of first actuating cylinder (21) with be connected wind wing skeleton (1) corresponds flap (11) are connected, the body end and the connection of first actuating cylinder (21) wind wing skeleton (1) corresponds main part (12) are connected, the flexible direction of the piston rod of first actuating cylinder (21) with the extending direction of wind wing skeleton (1) is the same, just the straight line that first actuating cylinder (21) piston rod place with flap (11) with the articulated shaft of main part (12) is not collinear.

3. The marine variable-airfoil sail according to claim 1 or 2, characterized in that said nose-wings (13) are hinged to the corresponding body (12), and the hinging axis of said nose-wings (13) and of the corresponding body (12) is perpendicular to the extension direction of said wind-wing skeleton (1);

first drive assembly (2) include second actuating cylinder (22), second actuating cylinder (22) are located wherein at least one on wing skeleton (1), just the tailpiece of the piston rod end of second actuating cylinder (22) with be connected wing skeleton (1) corresponds nose wing (13) are connected, the cylinder body end of second actuating cylinder (22) with be connected wing skeleton (1) corresponds main part (12) are connected, the flexible direction of the piston rod of second actuating cylinder (22) with the extending direction of wing skeleton (1) is the same, just the straight line at the piston rod place of second actuating cylinder (22) with nose wing (13) with the articulated shaft of main part (12) is the isoline.

4. The marine variable-profile sail according to claim 2, characterised in that, for one and the same wing skeleton (1), there are two first actuation cylinders (21), the two first actuation cylinders (21) being arranged symmetrically with respect to a line on which the articulation axes of the flap (11) and of the main body (12) are located.

5. The sail according to claim 3, characterized in that for one and the same wing skeleton (1), there are two of said second actuating cylinders (22), the two second actuating cylinders (22) being arranged symmetrically with respect to the line on which the articulation axes of said nose wing (13) and said main body (12) lie.

6. The marine variable-airfoil sail according to claim 1 or 2, characterized in that the flaps (11) and the nosewings (13) have a range of oscillation of ± 15 degrees each with respect to the corresponding body (12).

7. The marine variable-airfoil sail according to claim 1 or 2, characterized in that said wind-wing skeleton (1) is of symmetrical construction, and the plane of symmetry of said wind-wing skeleton (1) crosses the chord line of said wind-wing skeleton (1) and is parallel to the axis of said mast (3).

8. The marine variable-wing sail according to claim 1 or 2, further comprising a second driving assembly (6), wherein the second driving assembly (6) is connected to the bottom end of the mast (3), and the second driving assembly (6) is used for driving the mast (3) to switch between a first position and a second position, wherein the first position corresponds to the mast (3) being perpendicular to the deck of the hull, and the second position corresponds to the mast (3) being parallel to the deck of the hull.

9. The marine variable wing sail according to claim 8, wherein the second drive assembly (6) comprises a third drive cylinder (61), the third drive cylinder (61) being located on one side of the mast (3), and a cylinder end of the third drive cylinder (61) being hinged to the vessel, a rod end of the third drive cylinder (61) being connected to an outer wall of the bottom end of the mast (3).

10. The marine variable-profile sail according to claim 1 or 2, characterized in that it further comprises solar panels (7), said solar panels (7) being affixed to the outer surface of said skin (4).