CN113734372A

CN113734372A - Ship power fin and ship

Info

Publication number: CN113734372A
Application number: CN202111074046.4A
Authority: CN
Inventors: 薛明刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2021-12-03

Abstract

The invention relates to the technical field of ships, in particular to a ship power fin and a ship. The ship power fin is of a sheet structure, is arranged on a bilge part below a ship waterline, and is made of elastic materials at least at the part extending towards the stern direction. The ship power fin is of a sheet structure, and is arranged at the bilge part of the ship, so that the bilge keel on the existing ship can be replaced, namely the ship power fin has the function of stabilizing; when boats and ships meet stormy waves, the hull can take place rocking of certain range, and at this moment, the part that boats and ships power fin was made by elastic material can be out of shape under the effect of rivers, when elastic material kick-backs, can make rivers to stern direction to produce the forward thrust to boats and ships. That is to say the power fin can also provide the thrust of the ship moving after deformation.

Description

Ship power fin and ship

Technical Field

The invention relates to the technical field of ships, in particular to a ship power fin and a ship.

Background

The bilge keels are arranged on bilge parts of the ship, mainly used for increasing the damping of the ship during rolling and reducing the rolling degree, belong to a fixed type rolling reduction device, are symmetrically arranged on two sides of the ship and have a continuous type and an intermittent type. The connection between the bilge keels and the bilge strake ensures that the bilge keels are not damaged when damaged. Bilge keels are typically used on ships with small squareness factors to enhance wave resistance and stability.

Although the bilge keels can improve the stability of the ship, they cannot utilize the thrust generated by the water flow fluctuation.

Disclosure of Invention

The invention aims to provide a ship power fin, which can solve the problem that the existing bilge keels cannot utilize water flow thrust;

a second object of the invention is to provide a vessel comprising a vessel power fin as described above.

The invention provides a ship power fin which is of a sheet structure, the ship power fin is arranged at a bilge part below a ship waterline, and at least the part of the ship power fin extending towards the stern direction is made of elastic materials.

Preferably, the ship power fin comprises a fixing part and a fin;

the fixing part is arranged below a ship waterline;

the fin is fixed at the rear part of the fixing part, the fixing part is made of rigid materials, and the fin is made of elastic materials.

Preferably, the fixing part is a plate-shaped structure and comprises a first side edge, a second side edge and a third side edge;

the first side edge, the second side edge and the third side edge are connected in sequence to form a triangular structure;

the included angle between the first side edge and the second side edge is 85-90 degrees, and the third side edge is of an arc structure;

the first side edge is connected with the ship, and the second side edge is connected with the fins.

Preferably, the fixing portion is made of corrosion-resistant stainless steel, and the fins are made of corrosion-resistant polymer elastic material.

Preferably, the fins are embedded with steel wires.

Preferably, the fin is detachably connected with the fixing part.

Preferably, the fin is of a streamline structure, and the width of one end, close to the fixing portion, of the fin is larger than the width of one end, far away from the fixing portion, of the fin.

A marine vessel comprising a marine vessel power fin as described above.

Preferably, the bilges below the left waterline and the right waterline of the ship are provided with a plurality of ship power fins;

the ship power fins positioned on the same side of the ship are arranged along the longitudinal direction of the ship;

the ship power fins are distributed on the same straight line, and the adjacent ship power fins are distributed at intervals.

Preferably, the ship power fin is vertically arranged relative to the surface of the bilge hull along the longitudinal direction of the ship hull.

Has the advantages that:

the ship power fin is of a sheet structure, and is arranged at the bilge part of the ship, so that the bilge keel on the existing ship can be replaced, namely the ship power fin has the function of stabilizing; when boats and ships meet stormy waves, the hull can take place rocking of certain range, and at this moment, the part that boats and ships power fin was made by elastic material can be out of shape under the effect of rivers, when elastic material kick-backs, can make rivers to stern direction to produce the forward thrust to boats and ships. That is to say the power fin can also provide the thrust of the ship moving after deformation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a ship power fin according to an embodiment of the present invention;

FIG. 2 is a side view of a vessel with a power fin mounted thereon according to an embodiment of the present invention;

FIG. 3 is a bottom view of a ship with power fins mounted thereon according to an embodiment of the present invention;

FIG. 4 is a rear view of a vessel with a power fin mounted thereon according to an embodiment of the present invention;

FIG. 5 shows the state of the power fin of the ship when the ship is inclined to the left according to the embodiment of the invention;

FIG. 6 shows the state of the power fin of the ship when the ship is leaned to the right according to the embodiment of the invention;

FIG. 7 is an enlarged view of the dynamic fin of a ship when the ship is leaned to the left (where the arrows indicate the relative movement directions of the water flows) according to an embodiment of the present invention;

fig. 8 is an enlarged view of the state of the ship's power fin when the ship is leaned to the right (where the arrows are the relative movement directions of the water flows) according to the embodiment of the invention.

It should be noted that the wavy line in the drawings represents the water surface.

Description of reference numerals:

1: a marine power fin; 2: a vessel; 11: a fixed part; 12: and a fin.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 8, the present embodiment provides a ship power fin, wherein the ship power fin 1 has a sheet structure, the ship power fin 1 is installed at a bilge below a water line of a ship 2, and at least a portion of the ship power fin 1 extending in a stern direction is made of an elastic material.

The ship power fin 1 is of a sheet structure, and the ship power fin 1 is arranged at a bilge part of the ship 2 and can replace a bilge keel on the existing ship 2, namely the ship power fin 1 has a stabilizing function; when boats and ships 2 meet the stormy waves, the hull can take place rocking of certain extent, and at this moment, the part that boats and ships power fin 1 was made by elastic material can be out of shape under the effect of rivers, when elastic material kick-backs, can make rivers to stern direction to produce the forward thrust to boats and ships 2. That is to say the power fins are also able to provide the thrust of the movement of the vessel 2 after deformation.

In conclusion, the ship power fin 1 has the function of stabilizing the ship 2, and can provide forward thrust for the ship 2 through the resetting after the elastic material deforms.

Referring to fig. 1, the boat power fin 1 includes a fixing portion 11 and a fin 12, and the fixing portion 11 is installed below a waterline of the boat 2.

The fin 12 is fixed at the rear of the fixing portion 11, and the fixing portion 11 is made of rigid material, and the fin 12 is made of elastic material.

The ship power fin 1 is composed of two parts, so that the installation of the ship power fin 1 is convenient, and it should be noted that the ship power fin 1 can also adopt other equivalent structures, such as a similar structure adopting mechanical metal relative motion (the ship power fin 1 is made of metal materials, the structure can be installed on the ship 2 through an elastic component, the ship power fin 1 deflects under the action of water flow and then resets under the action of the elastic component, and can also generate thrust), or a piece of high polymer material is fixed on the ship body and has a fin shape and a fin 12 extending towards the stern direction, and the forward power can be obtained through the relative up-and-down motion of the ship body and the water, no matter how to change, the design of obtaining the forward power of the ship 2 by the same principle belongs to the protection scope of the invention.

When the ship power fin 1 is made of two parts, namely the fixing part 11 and the fin 12, the fixing part 11 is of a plate-shaped structure and comprises a first side edge, a second side edge and a third side edge.

The first side edge, the second side edge and the third side edge are sequentially connected to form a triangular structure, the included angle between the first side edge and the second side edge is 85-90 degrees, and the third side edge is of an arc-shaped structure. The first side is connected to the vessel 2 and the second side is connected to the fins 12.

The included angle between the first side and the second side is 85 degrees to 90 degrees, that is, the included angle between the first side and the second side is about 90 degrees, that is, the arrangement mode between the first side and the second side needs to ensure that the second side faces the direction of the stern after the first side is installed on the ship 2, and the fins 12 are installed on the second side and can ensure that the fins 12 extend towards the direction of the stern. The third edge adopts an arc structure, so that the resistance of the ship during navigation can be reduced. It should be noted that the mounting portion in the present embodiment is a preferred form of triangular structure, and it is not excluded that the mounting portion is in other forms, such as rectangular, and no matter what form the fixing portion 11 is, it is necessary to ensure that the side of the fixing portion 11 facing the bow is in an arc-shaped structure, and the fin 12 is installed behind the fixing portion 11, and the fin 12 faces the stern.

The fixing portion 11 is made of corrosion-resistant stainless steel, specifically, the fixing portion 11 is made of seawater corrosion-resistant stainless steel, and the fixing portion 11 may be connected to the vessel 2 by welding, but the fixing portion 11 may also be mounted on the vessel 2 by other methods, such as bolting, riveting, and the like.

The fins 12 are made of a corrosion-resistant polymer elastic material, and specifically, the fins 12 are made of a seawater corrosion-resistant polymer elastic material with a certain thickness, such as a high-elasticity rubber. The density of the rubber material is close to that of seawater, the rubber material has certain elasticity, and the rubber material can keep a horizontal state when not swaying up and down in water, so that the navigation resistance is reduced.

The fin 12 is detachably connected to the fixing portion 11, so that the fin 12 can be replaced later, for example, the fin 12 is connected to the fixing portion 11 by clamping, screwing or bonding.

The fins 12 are embedded with steel wires, and specifically, the fins 12 may be made of rubber embedded with steel wires, so that the structural strength of the fins 12 can be improved.

The fin 12 is a streamline structure, and the width of the end of the fin 12 close to the fixing portion 11 is larger than the width of the end far from the fixing portion 11. For example, the shape of the fin 12 is a tongue shape or other streamline shape, and the fin 12 is a tongue shape, which may be that the end of the fin 12 close to the fixing portion 11 is a rectangular structure, the end far away from the fixing portion 11 is an arc structure, and the width of the side wall of the rectangular structure is gradually reduced from the end close to the fixing portion 11 to the end far away from the fixing portion 11.

Referring to fig. 2 to 4, in the present embodiment, there is also provided a vessel 2, the vessel 2 comprising a vessel power fin 1 as described above.

Referring to fig. 5 to 8, when the ship 2 sails on the sea and encounters stormy waves, the ship body shakes left and right with a certain range, the power fins fixed below the waterline of the ship body move up and down relative to the sea water, the rubber fins 12 elastically deform at a certain angle due to the flow of water, when the ship body moves down relative to the sea water, the elastic deformation direction of the power fins faces upward, otherwise, the elastic deformation direction faces downward, and the elastic deformation direction of the power fins can enable water to flow to the stern direction regardless of the elastic deformation direction, so that forward thrust on the ship 2 is generated.

In addition, no matter how fast the ship 2 sails, as long as the elastic deformation and rebound of the rubber fins 12 are generated, the forward thrust can be generated to assist the ship 2 to advance.

The bilges below the left and right waterlines of the ship 2 are provided with a plurality of ship power fins 1. The ship power fins 1 located on the same side of the ship 2 are arranged in the longitudinal direction of the ship 2. The plurality of ship power fins 1 are distributed on the same straight line, and the adjacent ship power fins 1 are distributed at intervals.

By arranging the ship power fins 1 which are uniformly distributed on the left side and the right side of the ship 2, the forward thrust can be generated no matter the fins 12 move upwards or downwards relative to water, and the generated thrust is bilaterally symmetrical; meanwhile, the size of the fins 12 is determined according to the main size of the ship 2, the fins are relatively small, thrust can be generated when the relative motion amplitude is small, and the reliability and the propulsion efficiency are high; meanwhile, the smaller size does not affect the size of the main body of the ship 2, and the ship 2 is not impacted by the wharf.

The thrust generated by the fins 12 is uniformly distributed on the hull to push the ship 2 to advance, and stress concentration is not formed.

A plurality of power fins that set up on boats and ships 2 adopt the same structure, and is small, easily processing preparation, and all boats and ships 2 can install additional or repack, can mass production simultaneously, reduction in production cost.

The moving parts of the power fin are fins 12 made of rubber, and no metal relative moving part exists, so that mechanical noise is effectively reduced.

The rubber fins 12 can be dismounted for overhaul or replaced for renewal when the ship 2 is repaired, and the sand blasting and paint painting engineering of the ship body when the ship 2 is in the dock is not influenced;

in addition, the ship power fin 1 is disposed vertically with respect to the bilge hull surface in the hull longitudinal direction. This arrangement enables the fins 12 to deform significantly as the boat 2 moves up and down.

For further explanation of the power fin, the present embodiment also provides a specific mounting example of the power fin. For example, taking a ship 2 with a length of 100 meters as an example, at least 50 meters of distance is suitable for installation at a proper position of each side, 100 sides can be installed at each meter, and if the area of each rubber fin 12 is 0.1 square meter, the 0.1 square meter can generate forward thrust when fluctuating up and down, the sum can reach 10 square meters, the area greatly exceeds the area of a mechanical propulsion propeller blade, and larger thrust can be generated by each up-and-down movement.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The ship power fin is characterized in that the ship power fin is of a sheet structure, the ship power fin is installed at a bilge part below a ship waterline, and at least the part of the ship power fin extending towards the stern direction is made of elastic materials.

2. The marine power fin as claimed in claim 1, wherein the marine power fin includes a fixing portion and a fin;

the fixing part is arranged below a ship waterline;

3. The marine power fin of claim 2, wherein the fixing portion is a plate-like structure and includes a first side, a second side, and a third side;

4. The marine power fin of claim 2, wherein the fixing portion is made of corrosion-resistant stainless steel and the fin is made of corrosion-resistant polymer elastic material.

5. Marine vessel power fin according to claim 2 or 4, characterised in that the fin is embedded with steel wires.

6. The marine power fin as claimed in claim 2, wherein the fin is detachably connected to the fixing portion.

7. The marine power fin as claimed in claim 2, wherein the fin is of streamlined configuration and has a greater width at an end thereof adjacent the fixing portion than at an end thereof remote from the fixing portion.

8. A marine vessel comprising a marine vessel power fin as claimed in any one of claims 1 to 7.

9. The ship of claim 8, wherein bilges below the left and right waterlines of the ship are each provided with a plurality of ship power fins;

10. The ship of claim 8, wherein the ship power fins are disposed vertically with respect to the bilge hull surface in the longitudinal direction of the hull.