Wave suppression device and boat

Abstract

The invention belongs to the technical field of ship equipment, and discloses a wave suppression device and a ship. The wave suppression device comprises a hinge four-bar mechanism, a spoiler sheet and a rotary driving part, and the rotary driving part drives the spoiler sheet to rotate through the hinge four-bar mechanism, so that the spoiler sheet has a working position extending into water. The rotary driving part is arranged above the water surface, and the sealing surface of the rotary driving part is separated from the seawater environment, so that the possibility that marine organisms are attached to the sealing surface of the rotary driving part is fundamentally avoided, and the maintenance frequency and the environmental protection risk are remarkably reduced. Besides, the rotary driving part is far away from a seawater corrosion environment and does not need to bear underwater pressure, so that the failure probability of the sealing part caused by seawater corrosion or mechanical shock is reduced, the working stability of the driving system is improved, and the service life of the driving system is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of ship equipment, and in particular to a wave suppression device and a boat. Background Art

[0002] When a boat is traveling at high speed, it is prone to severe pitch and roll due to the action of wind and waves. In severe cases, the bow will jump violently or even lift up and capsize, which has an adverse impact on the comfort and safety of the ship.

[0003] To address these issues, high-speed boats often employ wave suppression devices to reduce the ship's pitch and roll, thereby minimizing bow bouncing and allowing the boat to sail in a relatively stable position. These devices primarily adjust the pitch and roll angles by altering the water pressure distribution at the stern or bottom of the boat.

[0004] Conventional wave suppression devices typically include a drive component and a spoiler plate. The drive component drives the spoiler plate to change its angle in the water, for example. However, the drive component in conventional wave suppression devices is partially submerged in water. After prolonged use, marine organisms can grow on its surface, necessitating frequent cleaning, which undoubtedly increases maintenance costs and workload.

[0005] Therefore, the above problems need to be solved urgently. Summary of the Invention

[0006] The object of the present invention is to provide a wave suppression device and a boat to prevent the possibility of marine organisms adhering to the sealing surface of the rotating drive component, thereby significantly reducing the maintenance frequency and environmental risks.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A wave suppression device, comprising a hinged four-bar mechanism, a spoiler plate, and a rotary drive member, wherein the rotary drive member drives the spoiler plate to rotate via the hinged four-bar mechanism so that the spoiler plate has a working position extending into the water;

[0009] The hinge four-bar mechanism comprises:

[0010] a frame for fixedly connecting the wave suppression device to the stern of the hull, wherein the rotary drive member is arranged on the upper side of the frame so that the rotary drive member is located on the water surface;

[0011] a first connecting rod, hinged to the frame, and the rotary driving member is used to drive the first connecting rod to rotate;

[0012] A third connecting rod is hinged to the frame, and the spoiler is provided at an end of the third connecting rod away from the frame;

[0013] The second connecting rod has one end hinged to the first connecting rod and the other end hinged to the third connecting rod, so that the first connecting rod can drive the third connecting rod to swing through the second connecting rod.

[0014] Preferably, when the third link swings down to the lowest point, the first link and the second link are collinear, so that the hinged four-bar mechanism forms a dead point of movement.

[0015] Preferably, the wave suppression device also includes a control member and an angle sensor, the angle sensor and the rotary drive member are electrically connected to the control member, the angle sensor is configured to detect the rotation angle of the first connecting rod and feed back the detection result to the control member, and the control member controls the operation of the rotary drive member according to the feedback signal of the angle sensor to adjust the rotation angle of the spoiler.

[0016] Preferably, the spoiler plate is arranged at an angle to the third connecting rod, so that the spoiler plate extends downward away from the side of the third connecting rod.

[0017] Preferably, the wave suppression device further includes a fifth connecting rod, a connecting shaft, a driving shaft and a driven shaft, wherein:

[0018] The fifth connecting rod and the first connecting rod are connected as a whole through the connecting shaft to form a crank structure;

[0019] The second connecting rod is hinged to the connecting shaft;

[0020] The first connecting rod is in transmission connection with the rotary driving member via the driving shaft;

[0021] The fifth connecting rod is rotatably connected to the frame through the driven shaft.

[0022] A boat comprises a hull and the above-mentioned wave-suppression device, wherein the wave-suppression device is arranged at the tail of the hull.

[0023] Preferably, two wave-suppression devices are provided, and the wave-suppression devices are distributed on both sides of the forward direction of the hull.

[0024] Beneficial effects of the present invention:

[0025] This invention positions the rotary drive element above the water surface, isolating its sealing surface from the seawater environment. This fundamentally prevents the possibility of marine organisms attaching to the rotary drive element's sealing surface, significantly reducing maintenance frequency and environmental risks. Furthermore, the rotary drive element is shielded from the corrosive environment of seawater and does not need to withstand underwater pressure, reducing the probability of seal failure due to seawater erosion or mechanical impact, thereby improving the operating stability and lifespan of the drive system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the wave suppression device provided by the present invention;

[0027] Figure 2 This is a structural schematic diagram of the hinged four-bar mechanism provided by the present invention without the frame, the second connecting rod and the third connecting rod;

[0028] Figure 3 It is a structural schematic diagram of the wave suppression device provided by the present invention when the spoiler plate is in the lowest position;

[0029] Figure 4 This is a schematic structural diagram of the wave suppression device provided by the present invention when the spoiler plate is in the highest position;

[0030] Figure 5 This is a schematic structural diagram of the wave suppression device provided by the present invention when the spoiler plate is in the middle position;

[0031] Figure 6 It is a structural schematic diagram of the boat provided by the present invention.

[0032] In the picture:

[0033] 10. Hull;

[0034] 1. Hinge four-bar mechanism; 11. Frame; 12. First connecting rod; 13. Second connecting rod; 14. Third connecting rod; 16. Fifth connecting rod; 17. Connecting shaft; 18. Driving shaft; 19. Driven shaft;

[0035] 2. Baffle plate; 3. Rotation drive component; 4. Angle sensor; 5. Control component. DETAILED DESCRIPTION

[0036] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0037] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0038] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent three situations: the existence of a centrifugal vortex magnetic pump alone, the existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump at the same time, and the existence of a centrifugal vortex magnetic pump alone. In addition, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0039] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0040] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0041] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0042] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0043] See also Figures 1 to 6 This embodiment provides a wave suppression device, which includes a hinged four-bar mechanism 1, a spoiler plate 2 and a rotating drive member 3. The rotating drive member 3 drives the spoiler plate 2 to rotate through the hinged four-bar mechanism 1 so that the spoiler plate 2 has a working position extending into the water.

[0044] Specifically, the hinged four-bar mechanism 1 includes a frame 11, a first link 12, a second link 13 and a third link 14. The frame 11 is used to fix the wave suppression device to the tail of the hull 10, and the rotary drive member 3 is arranged on the upper side of the frame 11 so that the rotary drive member 3 is located on the water surface. The first link 12 is hinged to the frame 11, and the rotary drive member 3 is used to drive the first link 12 to rotate. The third link 14 is hinged to the frame 11, and the spoiler 2 is arranged at the end of the third link 14 away from the frame 11. One end of the second link 13 is hinged to the first link 12, and the other end is hinged to the third link 14, so that the first link 12 can drive the third link 14 to swing through the second link 13.

[0045] In practice, by positioning the rotary drive member 3 above the frame 11, above the water's surface at the stern of the hull 10, the hinged four-bar linkage 1 transmits the power of the rotary drive member 3 to the spoiler plate 2, causing it to rotate. When the boat is sailing at high speed, the rotary drive member 3, through the hinged four-bar linkage 1, adjusts the angle and depth of the spoiler plate 2's entry into the water, altering the water pressure distribution at the stern of the hull 10 and, in turn, adjusting the boat's pitch and roll angles. This suppresses severe pitching, rolling, and bow bounce caused by wind and waves, ensuring smooth sailing.

[0046] As can be appreciated, the rotary drive element 3 is positioned above the water surface, shielding its sealing surface from the seawater environment. This fundamentally prevents the possibility of marine organisms attaching to the sealing surface of the rotary drive element 3, significantly reducing maintenance frequency and environmental risks. Furthermore, the rotary drive element 3 is shielded from the corrosive environment of seawater and does not need to withstand underwater pressure, reducing the probability of seal failure due to seawater erosion or mechanical impact, thereby improving the operational stability and lifespan of the drive system.

[0047] More importantly, the distance between the hinge point of first connecting rod 12 and the axis of rotation of second connecting rod 13, which is hinged to first connecting rod 12, forms the crank radius. This allows the first connecting rod 12's circular motion to be converted into controllable linear reciprocating motion via second connecting rod 13. Compared to existing linear reciprocating actuators that rely on stroke end position limits, the rotational adjustment mechanism facilitates stepless speed change and precise control, avoiding mechanical wear and posture control deviation caused by end-of-stroke impact.

[0048] When the rotary drive member 3 drives the first connecting rod 12 to rotate at a constant speed, the end of the second connecting rod 13 connected to the first connecting rod 12 moves along a circular arc trajectory, and the part of the second connecting rod 13 perpendicular to the rotation axis forms a straight reciprocating trend, and then pulls or pushes the third connecting rod 14 to rotate around the frame 11 through the hinge point, thereby converting the continuous output of the rotary drive into an angular swing of the spoiler plate 2, adapting to the dynamic needs of the boat posture adjustment.

[0049] In particular, when the third link 14 swings down to its lowest point, the first link 12 and the second link 13 are collinear, forming a dead point for the hinged four-bar linkage 1. At this point, the torque exerted by the driving force on the rotating shaft is zero, and the rotating drive 3 can maintain the spoiler plate 2 at its lowest position without any additional holding torque. This is particularly suitable for meeting the requirements of fixed attitude adjustment during stable high-speed navigation, reducing energy consumption and preventing prolonged overload of the rotating drive 3. Furthermore, the impact force of the water flow on the spoiler plate 2 is directly transmitted to the fixed support point of the frame 11 through the third link 14, forming a rigid force closed loop, protecting the rotating drive 3 from shear stress and extending its service life.

[0050] In this embodiment, the rotary drive element 3 is a servo motor. The servo control system allows real-time adjustment of the rotational speed and direction of the spoiler plate 2, enabling precise control of the rotation angle and speed. For example, when wind and waves change, the servo motor can quickly respond to control signals, dynamically adjust the attitude of the spoiler plate 2, and promptly change the water pressure distribution at the stern or bottom of the hull 10, more effectively suppressing pitch and roll, and improving the stability and safety of the vessel's navigation.

[0051] In order to improve the accuracy of adjustment, the wave suppression device also includes a control component 5 and an angle sensor 4. The angle sensor 4 and the rotary drive component 3 are electrically connected to the control component 5. The angle sensor 4 is configured to detect the rotation angle of the first connecting rod 12 and feed back the detection result to the control component 5. The control component 5 controls the operation of the rotary drive component 3 according to the feedback signal of the angle sensor 4 to adjust the rotation angle of the spoiler plate 2.

[0052] With such a configuration, the actual rotation angle of the first connecting rod 12 is continuously monitored by the angle sensor 4, and the data is transmitted to the control component 5 in real time. The control component 5 compares the deviation between the target angle and the actual angle through a preset algorithm (such as PID control), dynamically adjusts the rotation speed of the rotating drive component 3, and eliminates overshoot or lag caused by mechanical inertia. It should be noted that the specific models of the control component 5 and the angle sensor 4 can be selected according to the actual application scenario, and this embodiment does not make specific requirements and restrictions on this. In addition, the working principles of the control component 5 and the angle sensor 4 are both existing technologies, so they are not described in detail.

[0053] In this embodiment, the spoiler plate 2 and the third connecting rod 14 are arranged at an angle so that the side of the spoiler plate 2 away from the third connecting rod 14 extends downward, that is, the spoiler plate 2 extends downwardly toward the bottom of the hull 10. With this arrangement, the angle between the third connecting rod 14 and the spoiler plate 2 allows the inclination of the spoiler plate 2 to guide the water flow at the stern of the hull 10 to generate an upward lift component or a rearward drag component. Compared to traditional planar spoiler plates 2, this angled structure can more accurately control the angle of attack of the water flow when it strikes the spoiler plate 2. By changing the water entry depth and the water contact area during high-speed navigation, the water pressure distribution at the stern is dynamically adjusted, effectively suppressing pitch (e.g., reducing bow lift) or roll (e.g., balancing the roll of the hull 10).

[0054] Specifically, when water strikes the downwardly extending surface of spoiler plate 2, it generates a rearward and upward reaction force. The vertical component of this force partially offsets the bow lift moment, directly suppressing the pitching amplitude, especially reducing severe bow bouncing when encountering head waves. Furthermore, the obstructed water flow below spoiler plate 2 creates a localized high-pressure area, while the accelerated water flow above it forms a low-pressure area. The resulting pressure differential creates a pitching moment regulating force along the longitudinal axis of the hull 10, dynamically balancing the pitching moment caused by wind and waves (e.g., reducing the bow lift angle or shortening the lift time), allowing the boat to sail more smoothly.

[0055] Specifically, the wave suppression device also includes a fifth connecting rod 16, a connecting shaft 17, a driving shaft 18, and a driven shaft 19. The fifth connecting rod 16 and the first connecting rod 12 are integrally connected via the connecting shaft 17 to form a crank structure. The second connecting rod 13 is hingedly connected to the connecting shaft 17. The first connecting rod 12 is transmission-connected to the rotary drive member 3 via the driving shaft 18. The fifth connecting rod 16 is rotationally connected to the frame 11 via the driven shaft 19.

[0056] It is understood that the fifth connecting rod 16 and the first connecting rod 12 form a rigid whole through the connecting shaft 17, so that the driven shaft 19, the driving shaft 18 and the connecting shaft 17 form a stable triangular structure. This layout effectively constrains the motion trajectory of the second connecting rod 13, preventing it from moving due to lateral forces during reciprocating motion.

[0057] More importantly, the angle sensor 4 can be placed on the driven shaft 19 rather than the driving shaft 18 (inside the servo motor), physically separating the sensor from the moving parts. The driven shaft 19 serves as the fixed rotational fulcrum of the crank structure, and its rotation angle is completely synchronized with the first connecting rod 12, but is not affected by the reciprocating motion of the second connecting rod 13.

[0058] This embodiment further provides a boat, comprising a hull 10 and the aforementioned wave suppression device, which is disposed at the stern of the hull 10. It is understood that the boat including the aforementioned wave suppression device significantly reduces maintenance frequency and environmental risks, and improves operational stability and lifespan.

[0059] In particular, two wave suppression devices are provided, and the wave suppression devices are distributed on both sides of the forward direction of the hull 10. It should be noted that the specific installation positions of the wave suppression devices on both sides can be determined according to the shape of the bottom of the stern. It is necessary to make the bottom of the wave suppression device flush with the bottom of the stern so that the water flow from the bottom of the hull can be effectively blocked when the spoiler sheet 2 is extended. Figure 6 As shown, the stern bottom is V-shaped, so the devices on either side are arranged at an angle. Depending on the ship type, the stern bottom may also be horizontal or have other special shapes, and the layout of the wave suppression devices will be adjusted accordingly. This arrangement, by controlling the extension stroke of the spoiler panels 2 of the wave suppression devices on the left and right sides, creates different pressure distributions on the two sides of the ship bottom, resulting in greater lift on one side and less lift on the other. This difference can be used to suppress the roll or pitch of the hull 10.

[0060] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A wave suppression device, characterized in that: The wave suppression device comprises a hinged four-bar mechanism (1), a spoiler plate (2), and a rotary drive member (3); the rotary drive member (3) drives the spoiler plate (2) to rotate via the hinged four-bar mechanism (1), so that the spoiler plate (2) has a working position extending into the water; The hinged four-bar mechanism (1) comprises: A frame (11) is used to fix the wave suppression device to the tail of the hull (10), and the rotary drive member (3) is arranged on the upper side of the frame (11) so that the rotary drive member (3) is located on the water surface; A first connecting rod (12) is hinged to the frame (11), and the rotary driving member (3) is used to drive the first connecting rod (12) to rotate; A third connecting rod (14) is hinged to the frame (11), and the spoiler plate (2) is arranged at an end of the third connecting rod (14) away from the frame (11); The second connecting rod (13) has one end hinged to the first connecting rod (12) and the other end hinged to the third connecting rod (14), so that the first connecting rod (12) can drive the third connecting rod (14) to swing through the second connecting rod (13).

2. A wave suppression device according to claim 1, characterized in that: When the third link (14) swings down to the lowest point, the first link (12) and the second link (13) are collinear, so that the hinged four-bar mechanism (1) forms a motion dead point.

3. A wave suppression device according to claim 1, characterized in that: The wave suppression device further comprises a control member (5) and an angle sensor (4); the angle sensor (4) and the rotary drive member (3) are both electrically connected to the control member (5); the angle sensor (4) is configured to detect the rotation angle of the first connecting rod (12) and feed back the detection result to the control member (5); the control member (5) controls the operation of the rotary drive member (3) according to the feedback signal of the angle sensor (4) to adjust the rotation angle of the spoiler plate (2).

4. A wave suppression device according to claim 1, characterized in that: The spoiler plate (2) and the third connecting rod (14) are arranged at an angle so that the spoiler plate (2) extends downward away from the side of the third connecting rod (14).

5. A wave suppression device according to claim 1, characterized in that: The wave suppression device further comprises a fifth connecting rod (16), a connecting shaft (17), a driving shaft (18) and a driven shaft (19), wherein: The fifth connecting rod (16) and the first connecting rod (12) are connected as a whole via the connecting shaft (17) to form a crank structure; The second connecting rod (13) is hinged to the connecting shaft (17); The first connecting rod (12) is in transmission connection with the rotary drive member (3) via the driving shaft (18); The fifth connecting rod (16) is rotationally connected to the frame (11) via the driven shaft (19).

6. A boat, characterized in that: The boat comprises a hull (10) and a wave-suppression device according to any one of claims 1 to 5, wherein the wave-suppression device is arranged at the stern of the hull (10).

7. A boat according to claim 6, characterized in that: Two wave-suppression devices are provided, and the wave-suppression devices are distributed on both sides of the forward direction of the hull (10).

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