Energy-saving steering gear, power system and ship

Abstract

This invention belongs to the field of marine technology and discloses an energy-saving rudder device, a power system, and a ship. The energy-saving rudder device includes a rudder body and a rectifier structure. The rudder body is positioned opposite and spaced apart from the propeller of the power system. The rectifier structure is located at the leading edge of the rudder body relative to the propeller, with a gap between it and the propeller; both ends of the rectifier structure are connected to the leading edge, and the middle portion of the rectifier structure protrudes towards the direction of the propeller, with a gap between it and the leading edge. This energy-saving rudder device enables energy conservation in the ship and increases its sailing speed.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to an energy-saving steering device, a power system, and a ship. Background Technology

[0002] Using energy-efficient rudders is one method for ships to achieve underwater energy conservation and emission reduction. Currently, with increasing requirements for ship energy conservation, existing technologies have proposed technical measures such as setting guide or follow-edge twisting on the energy-efficient rudder, adding rudder balls, or adding thrust fins to improve energy efficiency.

[0003] However, the above-mentioned modification methods for energy-saving rudders are quite complex, resulting in complicated installation processes and low energy-saving effects.

[0004] Therefore, there is an urgent need for an energy-efficient steering device, power system, and ship to solve the above problems. Summary of the Invention

[0005] According to one aspect of the present invention, the object is to provide an energy-saving steering device that enables energy saving in ships and increases their sailing speed.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Energy-saving steering wheel device, including:

[0008] The rudder body is positioned opposite and spaced apart from the propeller of the power system.

[0009] A rectifying structure is provided on the leading edge of the rudder body relative to the propeller, with a gap between it and the propeller; the two ends of the rectifying structure are respectively connected to the leading edge, and the middle position of the rectifying structure protrudes towards the direction of the propeller, with a gap between it and the leading edge.

[0010] As a preferred embodiment of the energy-saving rudder device provided by the present invention, the cross-section of the rectifier structure is circular.

[0011] As a preferred embodiment of the energy-saving rudder device provided by the present invention, the internal structure of the rectifier is hollow.

[0012] As a preferred embodiment of the energy-saving rudder device provided by the present invention, the rectifying structure includes a first curved section, a straight section and a second curved section arranged in sequence. The end of the first curved section away from the straight section is connected to the leading edge section, and the end of the second curved section away from the straight section is connected to the leading edge section. The straight section is spaced apart from the leading edge section and spaced apart from the propeller.

[0013] As a preferred embodiment of the energy-saving steering device provided by the present invention, the first curved portion and the straight portion have a tangential transition; and / or,

[0014] The second curved portion and the straight portion transition tangentially; and / or,

[0015] The straight portion is parallel to the leading edge portion.

[0016] As a preferred embodiment of the energy-saving steering device provided by the present invention, the X-axis is positioned on the plane where the bottom base surface is located and along the longitudinal direction of the ship; the Z-axis is defined perpendicular to the X-axis and intersecting with the stern of the ship; the vertical distance in the Z direction between the bottom base surface and the rotation axis of the propeller is Z1, and the radius of the propeller is R.

[0017] The projection point of the first connection point between the first curved portion and the straight portion onto the leading edge along the X direction is the first projection point. The vertical distance Z2 from the first projection point to the bottom base surface in the Z direction is Z1-R×c1, where c1 ranges from 0.2 to 0.8. The first curved portion connects to the straight portion below it in the Z direction; and / or,

[0018] The connection point between the first curved portion and the leading edge portion is the first connection point. The vertical distance of the first connection point from the bottom base surface in the Z direction is Z_bottom + (Z2 – Z_bottom) × c2, where Z_bottom is the vertical distance between the lower edge of the swingable portion of the rudder body and the bottom base surface in the Z direction, and c2 ranges from 0.2 to 0.8; and / or,

[0019] The projection point of the second connection point between the straight section and the second curved section on the leading edge is the second projection point. The vertical distance Z3 from the second projection point to the bottom base surface in the Z direction is Z1 + R × c3, where c3 ranges from 0.2 to 1.2. The second curved section connects to the straight section above it in the Z direction; and / or,

[0020] The connection point between the second curved part and the leading edge part is the second connection point. The vertical distance Z4 between the second connection point and the bottom base surface in the Z direction is Z_top - (Z_top - Z_3) × c_4, where Z_top is the vertical distance between the upper edge of the swingable part of the rudder body and the bottom base surface in the Z direction, and c_4 is in the range of 0.2-0.8.

[0021] As a preferred embodiment of the energy-saving rudder device provided by the present invention, the vertical distance X1 of the first connection point between the first curved portion and the straight portion from the Z-axis in the X direction is X2 + Xg × c5, where X2 is the vertical distance of the first projection point in the X direction from the Z-axis, Xg is the distance in the X direction between the end of the propeller hub structure away from the installation position and the leading edge portion, and c5 ranges from 0.4 to 0.8; and / or,

[0022] The vertical distance X3 of the second connection point between the second curved part and the straight part from the Z axis in the X direction is X4 + Xg × c6, where X4 is the vertical distance of the second projection point in the X direction from the Z axis, Xg is the distance in the X direction between the end of the propeller hub structure away from the installation position and the leading edge part, and c6 is in the range of 0.4-0.8.

[0023] As a preferred embodiment of the energy-saving rudder device provided by the present invention, the rudder body includes a fixed part and a swinging part. The fixed part is connected to the hull, and the swinging part is located below the fixed part away from the hull and can swing relative to the hull. The rectifier structure is disposed on the swinging part.

[0024] According to another aspect of the present invention, an object is to provide a power system comprising a propeller and an energy-saving rudder device as described in any of the above embodiments, the propeller comprising a blade structure and a hub structure, the hub structure being mounted on the hull of a ship, the blade structure being mounted on the periphery of the hub structure, the blade structure being rotatable about the hub structure, and the ends of the hub structure being opposite to and spaced apart from the rectifier structure.

[0025] According to another aspect of the invention, the object is to provide a ship comprising a hull and a power system as described above, wherein the propeller and the energy-saving rudder device are respectively mounted on the hull.

[0026] The beneficial effects of this invention are:

[0027] The energy-saving rudder device provided by this invention includes a rudder body and a rectifier structure. The rudder body is positioned opposite and spaced apart from the propeller of the power system. The rectifier structure is located at the leading edge of the rudder body relative to the propeller, with a gap between it and the propeller. Both ends of the rectifier structure are connected to the leading edge, and the middle portion of the rectifier structure protrudes towards the direction of the propeller, with a gap between it and the leading edge. Through this rectifier structure, the water flow can be rectified, absorbing the rotational energy of the propeller wake, thereby achieving energy saving for the ship and increasing its sailing speed. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the energy-saving steering device provided in an embodiment of the present invention arranged in a ship.

[0030] In the picture:

[0031] 1. Hull;

[0032] 10. Propeller; 11. Blade structure; 12. Hub diameter structure;

[0033] 100. Rudder body; 110. Leading edge; 111. First projection point; 112. First connection point; 113. Second projection point; 114. Second connection point; 120. Fixed part; 130. Swinging part;

[0034] 200, Rectifying structure; 210, First curved section; 220, Straight section; 230, Second curved section; 240, First connection point; 250, Second connection point. Detailed Implementation

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] Figure 1 This diagram illustrates the arrangement of the energy-saving steering device provided in an embodiment of the present invention in a ship. (Refer to...) Figure 1 This embodiment provides an energy-saving steering device, a power system, and a ship.

[0045] The propulsion system includes a propeller 10 and an energy-saving rudder device provided in this embodiment. The propeller 10 includes a blade structure 11 and a hub structure 12. The hub structure 12 is mounted on the hull 1 of the vessel, and the end of the hub structure 12 furthest from the mounting position is defined as the front end. The blade structure 11 is mounted on the periphery of the hub structure 12, and the blade structure 11 is rotatable about the hub structure 12. The vessel includes the hull 1 and the aforementioned propulsion system, with the propeller 10 and the energy-saving rudder device arranged opposite to each other and spaced apart, respectively mounted on the hull 1.

[0046] The energy-saving rudder device includes a rudder body 100 and a rectifier structure 200. The rudder body 100 is positioned opposite and spaced apart from the propeller 10 of the power system. The rectifier structure 200 is located at the leading edge 110 of the rudder body 100 relative to the propeller 10, and is also positioned opposite and spaced apart from the front of the hub diameter structure 12. The upper and lower ends of the rectifier structure 200 are respectively connected to the leading edge 110, and the middle position of the rectifier structure 200 protrudes towards the direction of the propeller 10, leaving a gap between it and the leading edge 110. Through the aforementioned rectifier structure 200, the water flow can be rectified, absorbing the rotational energy of the propeller 10's wake, thereby achieving energy saving for the ship and increasing its sailing speed.

[0047] Alternatively, in this embodiment, the cross-section of the rectifier structure 200 is circular. Experiments have shown that setting the cross-section of the rectifier structure 200 to circular results in the best rectification effect.

[0048] Preferably, in this embodiment, the interior of the rectification structure 200 is hollow. This design effectively reduces the weight of the rectification structure 200 while still fulfilling its rectification function.

[0049] Specifically, the rectifying structure 200 includes a first curved portion 210, a straight portion 220, and a second curved portion 230 connected sequentially from bottom to top. The end of the first curved portion 210 away from the straight portion 220 is connected to the leading edge portion 110, and the end of the second curved portion 230 away from the straight portion 220 is connected to the leading edge portion 110. The straight portion 220 is spaced apart from the leading edge portion 110 and spaced apart from the propeller 10.

[0050] More specifically, the first curved portion 210 and the straight portion 220 transition tangentially. The second curved portion 230 and the straight portion 220 also transition tangentially. This arrangement makes the rectifier structure 200 smooth overall, reducing drag.

[0051] More specifically, the straight section 220 is parallel to the leading edge section 110. With the above arrangement, the conformability of the rectifying structure 200 and the leading edge section 110 can be improved, and the drag can be reduced on the basis of rectification.

[0052] Continue to refer to Figure 1 The rudder body 100 includes a fixed part 120 and a swinging part 130. The fixed part 120 is connected to the hull 1 and serves as the mounting base for the swinging part 130. The swinging part 130 is located below the fixed part 120 away from the hull 1 and can swing relative to the hull 1 to maintain the navigational balance of the hull 1. The rectifier structure 200 is specifically disposed on the swinging part 130.

[0053] Continue to refer to Figure 1 This embodiment also provides a method for selecting the shape and installation position of the above-mentioned rectifier structure 200, as follows:

[0054] The X-axis is positioned on the plane containing the ship's bottom base and along the longitudinal direction of the ship. The Z-axis is defined at the point where it intersects the ship's stern, perpendicular to the X-axis. The vertical distance in the Z-direction between the ship's bottom base and the rotation axis of the propeller 10 is Z1, and the radius of the propeller 10 is R.

[0055] Specifically, the projection point of the first connection point 240 between the first curved portion 210 and the straight portion 220 on the leading edge portion 110 along the X direction is the first projection point 111. The vertical distance Z2 between the first projection point 111 and the bottom base surface in the Z direction is Z1-R×c1, where the value of c1 ranges from 0.2 to 0.8. The first curved portion 210 is connected to the straight portion 220 below in the Z direction.

[0056] Specifically, the connection point between the first curved portion 210 and the leading edge portion 110 is the first connection point 112. The vertical distance of the first connection point 112 from the bottom surface of the ship in the Z direction is Z_bottom + (Z2 – Z_bottom) × c2, where Z_bottom is the vertical distance between the lower edge of the swingable part of the rudder body 100 and the bottom surface of the ship in the Z direction, and c2 ranges from 0.2 to 0.8.

[0057] More specifically, the projection point of the second connection point 250 between the straight section 220 and the second curved section 230 on the leading edge section 110 is the second projection point 113. The vertical distance Z3 of the second projection point 113 from the bottom base surface in the Z direction is Z1+R×c3, where the value of c3 ranges from 0.2 to 1.2. The second curved section 230 is connected to the straight section 220 above it in the Z direction.

[0058] More specifically, the connection point between the second curved portion 230 and the leading edge portion 110 is the second connection point 114. The vertical distance Z4 between the second connection point 114 and the bottom base surface in the Z direction is Z_top - (Z_top - Z_3) × c_4, where Z_top is the vertical distance between the upper edge of the swingable part of the rudder body 100 and the bottom base surface in the Z direction, and c_4 ranges from 0.2 to 0.8.

[0059] Continue to refer to Figure 1 The vertical distance X1 of the first connection point 240 between the first curved part 210 and the straight part 220 in the X direction from the Z axis is X2 + Xg × c5, where X2 is the vertical distance of the first projection point 111 in the X direction from the Z axis, Xg is the distance in the X direction between the end of the hub diameter structure 12 of the propeller 10 away from the installation position and the leading edge part 110, and c5 is in the range of 0.4-0.8.

[0060] Specifically, the vertical distance X3 of the second connection point 250 between the second curved portion 230 and the straight portion 220 in the X direction from the Z axis is X4 + Xg × c6, where X4 is the vertical distance of the second projection point 113 in the X direction from the Z axis, Xg is the distance in the X direction between the end of the hub diameter structure 12 of the propeller 10 away from the installation position and the leading edge portion 110, and c6 is in the range of 0.4-0.8.

[0061] Users can install the rectifier structure 200 on the existing rudder body 100 of a fixed size according to the above method, thereby achieving energy saving and increasing ship speed.

[0062] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An energy saving rudder device, characterized by, include: The rudder body (100) is positioned opposite to and spaced apart from the propeller (10) of the power system; A rectifier structure (200) is disposed on the leading edge (110) of the rudder body (100) relative to the propeller (10) and a gap is left between it and the propeller (10); the two ends of the rectifier structure (200) are respectively connected to the leading edge (110), and the middle position of the rectifier structure (200) protrudes towards the direction of the propeller (10) and a gap is left between it and the leading edge (110); The rectifying structure (200) includes a first curved section (210), a straight section (220), and a second curved section (230) connected in sequence. The end of the first curved section (210) away from the straight section (220) is connected to the leading edge section (110), and the end of the second curved section (230) away from the straight section (220) is connected to the leading edge section (110). The straight section (220) is spaced apart from the leading edge section (110) and spaced apart from the propeller (10). The X-axis is positioned on the plane of the ship's bottom base and along the longitudinal direction of the ship; the Z-axis is defined perpendicular to the X-axis and intersects with the stern of the ship; the vertical distance in the Z direction between the ship's bottom base and the rotation axis of the propeller (10) is Z1, and the radius of the propeller (10) is R. The projection point of the first connection point (240) between the first curved part (210) and the straight part (220) on the leading edge part (110) along the X direction is the first projection point (111). The vertical distance Z2 of the first projection point (111) from the bottom base surface in the Z direction is Z1-R×c1, where the value of c1 ranges from 0.2 to 0.

8. The first curved part (210) is connected to the straight part (220) below in the Z direction. The connection point between the first curved part (210) and the leading edge part (110) is the first connection point (112). The vertical distance of the first connection point (112) from the bottom base surface in the Z direction is Z_bottom + (Z2 – Z_bottom) × c2, where Z_bottom is the vertical distance between the lower edge of the swingable part of the rudder body (100) and the bottom base surface in the Z direction, and c2 is in the range of 0.2-0.

8. The projection point of the second connection point (250) between the straight section (220) and the second curved section (230) on the leading edge (110) is the second projection point (113). The vertical distance Z3 between the second projection point (113) and the bottom base surface in the Z direction is Z1+R×c3, where the value of c3 ranges from 0.2 to 1.

2. The second curved section (230) is connected above the straight section (220) in the Z direction. The connection point between the second curved part (230) and the leading edge part (110) is the second connection point (114). The vertical distance Z4 between the second connection point (114) and the bottom base surface in the Z direction is Z_top - (Z_top - Z_3) × c_4, where Z_top is the vertical distance between the upper edge of the swingable part of the rudder body (100) and the bottom base surface in the Z direction, and c_4 is in the range of 0.2-0.

8.

2. The energy saving rudder device of claim 1, wherein The cross-section of the rectifier structure (200) is circular.

3. The energy saving rudder device of claim 1, wherein The rectifier structure (200) is hollow inside.

4. The energy saving rudder device of claim 1, wherein The first curved portion (210) and the straight portion (220) transition tangentially; and / or, The second curved portion (230) and the straight portion (220) transition tangentially; and / or, The straight portion (220) is parallel to the leading edge portion (110).

5. The energy saving rudder device of claim 1, wherein The vertical distance X1 of the first connection point (240) between the first curved portion (210) and the straight portion (220) from the Z-axis in the X direction is X2 + Xg × c5, where X2 is the vertical distance of the first projection point (111) from the Z-axis in the X direction, Xg is the distance in the X direction between the end of the hub diameter structure (12) of the propeller (10) away from the installation position and the leading edge portion (110), and c5 is in the range of 0.4-0.8; and / or, The vertical distance X3 of the second connection point (250) between the second curved part (230) and the straight part (220) from the Z axis in the X direction is X4 + Xg × c6, where X4 is the vertical distance of the second projection point (113) from the Z axis in the X direction, Xg is the distance in the X direction between the end of the hub diameter structure (12) of the propeller (10) away from the installation position and the leading edge part (110), and c6 is in the range of 0.4-0.

8.

6. Energy-efficient rudder device according to any of claims 1-5, characterized in that The rudder body (100) includes a fixed part (120) and a swing part (130). The fixed part (120) is connected to the hull (1). The swing part (130) is located below the fixed part (120) away from the hull (1) and can swing relative to the hull (1). The rectifier structure (200) is disposed on the swing part (130).

7. A power system characterized by, The device includes a propeller (10) and an energy-saving rudder device as described in any one of claims 1-6. The propeller (10) includes a blade structure (11) and a hub structure (12). The hub structure (12) is mounted on the hull (1) of the ship. The blade structure (11) is mounted on the periphery of the hub structure (12). The blade structure (11) is rotatable about the hub structure (12). The end of the hub structure (12) is opposite to and spaced apart from the rectifier structure (200).

8. A ship, characterized in that, The vessel includes a hull (1) and a power system as described in claim 7, wherein the propeller (10) and the energy-saving rudder device are respectively mounted on the hull (1).

Images