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 six-bar mechanism, a spoiler sheet and a rotary driving part, and the rotary driving part drives the spoiler sheet to rotate through the hinge six-bar mechanism, so that the spoiler sheet has a working position extending into water. The first connecting rod is adopted for continuous rotation driving, through hinged transmission of the fourth connecting rod and the spoiler sheet, the swing angle of the spoiler sheet is naturally limited by the rotation range of the first connecting rod, a rigid stroke tail end does not need to be arranged, a rotation driving piece is allowed to rotate continuously, reversing is not needed, and the overshoot phenomenon of traditional reciprocating motion is avoided; the problems of vibration, abrasion and control deviation caused by overshoot are eliminated in principle.

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 generally include a drive structure and spoiler plates. The drive structure drives the spoiler plates to change their angle in the water, for example. However, conventional wave suppression devices typically utilize reciprocating mechanisms, such as electric push rods and hydraulic cylinders, as the drive mechanism. These reciprocating mechanisms require forced reversal at the travel limit. Due to mechanical inertia and control delays, this can easily lead to "overshoot," where moving components break through their limit positions and impact the mechanical structure, causing increased vibration, noise, and component wear. This can also affect attitude control accuracy and can even cause the spoiler plates to lose control due to overshoot.

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

[0006] The purpose of the present invention is to provide a wave suppression device and a boat to avoid the "overshoot phenomenon" of traditional reciprocating motion and to eliminate the vibration, wear and control deviation problems caused by overshoot in principle.

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

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

[0009] The hinged six-bar mechanism includes a frame, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, and a fifth connecting rod, wherein:

[0010] The frame is used to fixedly connect the wave suppression device to the stern of the hull, the first connecting rod, the third connecting rod, and the fifth connecting rod are respectively hinged to the frame, the fourth connecting rod is respectively hinged to the third connecting rod and the fifth connecting rod, and one end of the second connecting rod is hinged to the first connecting rod, and the other end is hinged to the third connecting rod and / or the fourth connecting rod;

[0011] The rotary driving member is fixedly mounted on the frame, and is used to drive the first connecting rod to rotate, and drive the third connecting rod and the fifth connecting rod to swing through the second connecting rod;

[0012] The spoiler plate is arranged at one end of the fifth connecting rod away from the frame, and the spoiler plate can be inserted into or separated from the water surface as the fifth connecting rod swings.

[0013] Preferably, when the fifth link swings down to the lowest point, the third link is collinear with the fourth link, and the first link (12) and the second link (13) are collinear, so that the hinged six-bar mechanism forms a motion dead point.

[0014] 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.

[0015] Preferably, the wave suppression device also includes a posture sensor, which is configured to detect the posture of the hull during navigation and feed back the detection result to the control component. The control component controls the operation of the rotating drive component according to the feedback signal of the posture sensor, so as to adjust the posture of the hull during navigation by regulating the rotation angle of the spoiler.

[0016] Preferably, the fifth connecting rod and the spoiler plate are arranged at an angle so that the spoiler plate extends downward away from the side of the fifth connecting rod.

[0017] 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.

[0018] Preferably, two wave-suppression devices are provided, and the wave-suppression devices are distributed on both sides of the forward direction of the hull.

[0019] Beneficial effects of the present invention:

[0020] The present invention adopts continuous rotation drive of the rotating part, and through the articulated transmission of the connecting rod and the spoiler plate, the swing angle of the spoiler plate is naturally limited by the rotation range of the rotating part. There is no need to set a rigid stroke end, allowing the rotating drive part to rotate continuously without reversing, avoiding the "overshoot phenomenon" of traditional reciprocating motion, and eliminating the vibration, wear and control deviation problems caused by overshoot in principle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the wave suppression device provided by the present invention;

[0022] Figure 2 2 is a schematic structural diagram of the wave suppression device provided by the present invention when the spoiler plate is in the lowest position;

[0023] Figure 3 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;

[0024] 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 middle position;

[0025] Figure 5 It is a structural schematic diagram of the boat provided by the present invention.

[0026] In the picture:

[0027] 10. Hull;

[0028] 1. Hinged six-bar mechanism; 11. Frame; 12. First connecting rod; 13. Second connecting rod; 14. Third connecting rod; 15. Fourth connecting rod; 16. Fifth connecting rod;

[0029] 2. Baffle plate; 3. Rotary drive component; 4. Control component; 5. Angle sensor. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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).

[0035] 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.

[0036] 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.

[0037] See also Figures 1 to 5 This embodiment provides a wave suppression device, which includes a hinged six-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 six-bar mechanism 1 so that the spoiler plate 2 has a working position extending into the water.

[0038] Specifically, the hinged six-bar mechanism 1 includes a frame 11, a first link 12, a second link 13, a third link 14, a fourth link 15, and a fifth link 16. The frame 11 is used to securely connect the wave suppression device to the stern of the hull 10. The first link 12, the third link 14, and the fifth link 16 are respectively hinged to the frame 11, and the fourth link 15 is respectively hinged to the third link 14 and the fifth link 16. 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 and / or the fourth link 15. A rotary drive member 3 is fixedly mounted on the frame 11 and is used to drive the first link 12 to rotate and, via the second link 13, to drive the third link 14 and the fifth link 16 to swing. A spoiler plate 2 is disposed at the end of the fifth link 16 away from the frame 11, and can be inserted into or removed from the water surface as the fifth link 16 swings.

[0039] With this arrangement, the first connecting rod 12 is driven to rotate continuously by the rotary drive element 3, and the fourth connecting rod 15 converts the circular motion of the first connecting rod 12 into the reciprocating oscillation of the spoiler plate 2. Specifically, the rotation center of the first connecting rod 12 forms an eccentricity with the hinge point of the fourth connecting rod 15, so that when the first connecting rod 12 rotates, the fourth connecting rod 15 drives the fourth connecting rod 15 in reciprocating linear motion, thereby pulling or pushing the spoiler plate 2 to rotate about the fulcrum of the frame 11, changing the angle and depth of the spoiler plate 2's entry into the water, and suppressing pitch and roll by adjusting the water pressure distribution at the stern of the hull 10. It can be understood that the continuous rotation drive of the first connecting rod 12 and the articulated transmission between the fourth connecting rod 15 and the spoiler plate 2 naturally limit the oscillation angle of the spoiler plate 2 to the rotation range of the first connecting rod 12, eliminating the need for a rigid end of travel and allowing the rotary drive element 3 to rotate continuously without reversing. This avoids the "overshoot" phenomenon of traditional reciprocating motion and fundamentally eliminates the vibration, wear, and control deviation problems caused by overshoot.

[0040] It can be understood that the second connecting rod 13 serves as an intermediate transmission component between the first connecting rod 12 and the fourth connecting rod 15, forming a three-stage transmission chain of the first connecting rod 12, the second connecting rod 13, the fourth connecting rod 15, and the spoiler plate 2. Specifically, when the first connecting rod 12 rotates around the fixed axis, it drives the second connecting rod 13 to move through the hinge point. The other end of the second connecting rod 13 is hinged to the fourth connecting rod 15, transmitting its own motion to the fourth connecting rod 15, and finally the fourth connecting rod 15 drives the spoiler plate 2 to swing. By adding the second connecting rod 13, compared with the motion transmission path in which the first connecting rod 12 directly drives the fourth connecting rod 15, a hinged six-bar mechanism 1 with a composite structure similar to a "double rocker mechanism" is formed. If the first connecting rod 12 directly drives the fourth connecting rod 15, the swing angle of the spoiler plate 2 is limited by the geometric relationship between the crank radius and the length of the fourth connecting rod 15.

[0041] It should be noted that the length and hinge position of the second connecting rod 13 can be used as design variables, combined with the parameters of the first connecting rod 12 and the fourth connecting rod 15, to form different transmission ratios, that is, the ratio of the rotation angle of the first connecting rod 12 to the swing angle of the spoiler plate 2. For example, if the spoiler plate 2 needs to respond quickly to high-frequency waves, a "speed-up transmission" can be designed, that is, a small rotation of the first connecting rod 12 drives the spoiler plate 2 to swing at a large angle; if the spoiler plate 2 needs to be precisely controlled at a small angle, a "speed-down transmission" can be designed, that is, a large rotation of the first connecting rod 12 corresponds to a small swing of the spoiler plate 2.

[0042] Generally speaking, when the fourth link 15 is driven solely by the second link 13, the fourth link 15 has a high degree of freedom of movement, making it susceptible to lateral sway under high-speed swinging or wave impact, potentially causing the spoiler plate 2 to lose control of its posture. To this end, the third link 14 is hinged to the frame 11 to form a fixed fulcrum, forming a rigid triangular structure with the second link 13 and the fourth link 15. This limits the lateral displacement of the fourth link 15, keeping the swing trajectory of the spoiler plate 2 strictly constrained within the designed plane. For example, when waves impact the spoiler plate 2, generating a lateral force, the third link 14 can transmit the reaction force through the frame 11, offsetting the impact load and preventing the fourth link 15 from deflecting due to unilateral force.

[0043] When the fifth link 16 swings down to its lowest point, the third link 14 and the fourth link 15 become collinear, and the first link 12 and the second link 13 become collinear, creating a dead point for the hinged six-bar mechanism 1. Thus, when the third link 14 and the fourth link 15 are collinear, the torque generated by waves impacting the spoiler plate 2 is directly transmitted to the frame 11 through the rigid linear structure formed by the fourth link 15 and the third link 14, avoiding bending moments through the second link 13 and the first link 12, thereby ensuring transmission accuracy between the second link 13 and the first link 12.

[0044] In order to improve the accuracy of adjusting the spoiler plate 2, the wave suppression device also includes a control component 4 and an angle sensor 5. The angle sensor 5 and the rotary drive component 3 are both electrically connected to the control component 4. The angle sensor 5 is configured to detect the rotation angle of the first connecting rod 12 and feed back the detection result to the control component 4. The control component 4 controls the operation of the rotary drive component 3 according to the feedback signal of the angle sensor 5 to adjust the rotation angle of the spoiler plate 2.

[0045] With such a configuration, the actual rotation angle of the first connecting rod 12 is continuously monitored by the angle sensor 5, and the data is transmitted to the control component 4 in real time. The control component 4 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 4 and the angle sensor 5 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 4 and the angle sensor 5 are both existing technologies, so they are not described in detail.

[0046] In order to further improve the accuracy of the adjustment of the spoiler plate 2, the wave suppression device also includes a posture sensor, which is configured to detect the posture of the hull 10 during navigation and feed back the detection results to the control component 4. The control component 4 controls the operation of the rotating drive component 3 according to the feedback signal of the posture sensor to adjust the posture of the hull 10 during navigation by adjusting the rotation angle of the spoiler plate 2.

[0047] It is understandable that the attitude sensor continuously collects pitch angle and roll angle data, and combined with the ship dynamics model, the control component 4 can dynamically adjust the water entry depth and angle of the spoiler plates 2 on both sides, which is specifically divided into the following two control methods.

[0048] Roll Control: When the hull 10 is detected rolling to one side, the control unit 4 increases the extension of the spoiler panel 2 on that side while decreasing the extension on the other side. This creates a counter-righting moment by leveraging the lift differential on both sides, quickly suppressing the roll amplitude. For example, when the hull 10 tilts to starboard, the right spoiler panel 2 sinks deeper into the water, generating greater upward lift. This, combined with the smaller lift on the left side, creates a righting moment to the left.

[0049] Pitch control: When the bow is detected to be rising (positive pitch), the control component 4 simultaneously increases the extension of the spoiler panels 2 on both sides, raising the stern by increasing the total lift and reducing the pitch angle; conversely, when the bow sinks, the extension is reduced.

[0050] It should be noted that the specific model of the posture sensor can be selected according to the actual application scenario. This embodiment does not make specific requirements and restrictions on this. For example, the posture sensor adopts an inertial navigation system.

[0051] In particular, the fifth connecting rod 16 and the spoiler plate 2 are arranged at an angle, so that the side of the spoiler plate 2 away from the fifth connecting rod 16 extends downward. This arrangement allows the angle between the fifth connecting rod 16 and the spoiler plate 2 to tilt the spoiler plate 2 at an angle that can 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 flat spoiler plates 2, this angled structure can more accurately control the angle of attack of the water flow when it impacts 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).

[0052] 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.

[0053] 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 comprising the aforementioned wave suppression device significantly reduces maintenance frequency, and improves operational stability and service life.

[0054] 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 5 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.

[0055] 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 six-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 six-bar mechanism (1), so that the spoiler plate (2) has a working position extending into the water; The hinged six-bar mechanism (1) comprises a frame (11), a first connecting rod (12), a second connecting rod (13), a third connecting rod (14), a fourth connecting rod (15), and a fifth connecting rod (16), wherein: The frame (11) is used to fix the wave suppression device to the tail of the hull (10); the first connecting rod (12), the third connecting rod (14), and the fifth connecting rod (16) are respectively hinged to the frame (11); the fourth connecting rod (15) is respectively hinged to the third connecting rod (14) and the fifth connecting rod (16); one end of the second connecting rod (13) is hinged to the first connecting rod (12), and the other end is hinged to the third connecting rod (14) and / or the fourth connecting rod (15); The rotary drive member (3) is fixedly mounted on the frame (11), and is used to drive the first connecting rod (12) to rotate, and to drive the third connecting rod (14) and the fifth connecting rod (16) to swing through the second connecting rod (13); The spoiler plate (2) is arranged at one end of the fifth connecting rod (16) away from the frame (11), and the spoiler plate (2) can be inserted into or separated from the water surface as the fifth connecting rod (16) swings.

2. A wave suppression device according to claim 1, characterized in that: When the fifth link (16) swings down to the lowest point, the third link (14) and the fourth link (15) are collinear, and the first link (12) and the second link (13) are collinear, so that the hinged six-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 (4) and an angle sensor (5); the angle sensor (5) and the rotary drive member (3) are both electrically connected to the control member (4); the angle sensor (5) is configured to detect the rotation angle of the first connecting rod (12) and feed back the detection result to the control member (4); the control member (4) controls the operation of the rotary drive member (3) according to the feedback signal of the angle sensor (5) to adjust the rotation angle of the spoiler plate (2).

4. A wave suppression device according to claim 3, characterized in that: The wave suppression device further comprises a posture sensor, wherein the posture sensor is configured to detect the posture of the hull (10) during navigation and to feed back the detection result to the control element (4). The control element (4) controls the operation of the rotary drive element (3) according to the feedback signal of the posture sensor, so as to adjust the posture of the hull (10) during navigation by regulating the rotation angle of the spoiler plate (2).

5. A wave suppression device according to claim 1, characterized in that: The fifth connecting rod (16) and the spoiler plate (2) are arranged at an angle so that the spoiler plate (2) extends downward away from the side of the fifth connecting rod (16).

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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