A retractable rudder that can improve rudder efficiency

Abstract

This invention discloses a retractable rudder that can improve rudder efficiency, comprising a rudder blade body, a rotating plate, a retractable rudder, a retractable plate, and a retractable block device. The rotating plate is embedded in one side of the rudder blade body via a rotating rod. A rotating shaft device with a driving function is installed above the rudder blade body, and a limiting shaft connected to the rotating plate is provided on one side of the rotating shaft device. The rudder blade body and the rotating plate have downward-opening cavities, and the retractable rudder and the retractable plate are respectively arranged within the cavities. A longitudinal retractable groove is provided on one side of the retractable rudder, and a retractable block device is embedded in the groove via a spring. The retractable block device includes a retractable block. This retractable rudder not only increases the area of ​​both the rudder blade body and the rotating plate simultaneously, but also allows for simultaneous control of the retractable rudder and the retractable plate to rotate and adjust at the same angle as the rudder blade body and the rotating plate, greatly improving rudder efficiency. The increased area achieves the desired effect.

Description

Technical Field

[0001] This invention belongs to the field of ship rudder technology, specifically a telescopic ship rudder that can improve rudder efficiency. Background Technology

[0002] The direction of a ship's movement is entirely controlled by the rudder. The quality of the rudder is crucial to ship handling. Only by clearly understanding and mastering the rudder effect can one navigate a ship with confidence. With the development of technology and the increasing importance of the ocean, ships are becoming more and more advanced. A full understanding of the rudder effect will enable us to better command ships, better serve the shipping industry, and better and faster promote the process of globalization.

[0003] Rudder effectiveness is a comprehensive concept. It is conventionally considered that when a moving ship is steered at a set rudder angle, it can turn the ship a large angle in a short time and distance. Good rudder effectiveness means that the ship can turn a large angle in a short time and distance. Otherwise, the rudder effectiveness is poor. Many factors are involved in rudder effectiveness, among which rudder effectiveness is directly proportional to the size of the rudder area. Within a certain range, the larger the rudder area, the greater the rudder force and the greater the turning torque of the rudder. The better the rudder effectiveness, the more appropriate it is to increase the rudder area.

[0004] To improve rudder efficiency, researchers have designed many retractable rudders to increase the rudder blade area, such as a flap rudder transmission device for ships (application number 2021115982544) and an automated rudder device for ice-covered areas (application number 2022101760336). Both devices add retractable rudder surfaces to improve rudder efficiency. However, the extended rudder surfaces are all single. Due to the influence of the rotating rod structure in the middle, the rotating plate, which plays an important role, is not increased. Only the main body of the rudder blade is increased, resulting in the extended rudder blade not achieving the desired effect and the improvement in rudder efficiency being limited. Summary of the Invention

[0005] In view of the above-mentioned problems in the existing technology, the technical problem to be solved by the present invention is to provide a telescopic rudder that can improve rudder efficiency, so as to solve the problem that the current telescopic rudder does not increase the rotating plate, but only increases the main body of the rudder blade, resulting in the extended rudder blade not achieving the ideal effect and the improvement of rudder efficiency being limited.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A telescopic rudder that can improve rudder efficiency includes a rudder blade body, a rotating plate, a telescopic rudder, a telescopic plate, and a telescopic block device. The rotating plate is embedded in one side of the rudder blade body through a rotating rod. A rotating shaft device with a driving function is installed on the top of the rudder blade body, and a limiting shaft connected to the rotating plate is provided on one side of the rotating shaft device. The rudder blade body and the rotating plate are provided with cavities with openings at the bottom, and the telescopic rudder and the telescopic plate are respectively arranged in the cavities.

[0008] Synchronous telescopic rods are provided between the top of the telescopic rudder and the interior of the rudder blade body, and between the top of the telescopic plate and the interior of the rotating plate, and the synchronous telescopic rods are connected to the hydraulic adjustment device.

[0009] The telescopic rudder has a longitudinal telescopic groove on one side, and a telescopic block device is embedded in the telescopic groove through a spring. The telescopic block device includes a telescopic block, and the telescopic block and the telescopic rudder form a telescopic structure through the spring.

[0010] Furthermore, the inner surface of the cavity of the rudder blade body and the rotating plate is uniformly provided with grooves, and a rotatable auxiliary wheel is embedded in the groove. The diameter of the auxiliary wheel is greater than the depth of the groove, and the auxiliary wheel is in contact with the outer surface of the telescopic rudder and the telescopic plate on both sides.

[0011] Furthermore, a protruding plate is provided at the lower end of the telescopic rudder facing the telescopic plate, and a connecting rod is provided at the lower end of the telescopic plate on the side corresponding to the telescopic rudder, with one end of the connecting rod embedded in the protruding plate.

[0012] Furthermore, the telescopic groove is uniformly provided with a number of longitudinal sliding grooves, and sliding blocks are uniformly provided on both sides of the telescopic block. The sliding blocks cooperate with the sliding grooves, and the sliding stroke of the telescopic block is consistent with the distance between the telescopic rudder and the telescopic plate.

[0013] Furthermore, several telescopic blocks are provided, and a spring is fixedly connected to the back of each telescopic block. The upper outer side of each telescopic block is a slope.

[0014] Furthermore, the lower end of the cavity inside the rudder blade body corresponding to the telescopic block device is provided with a chamfered surface, and the chamfered surface cooperates with the chamfered surface at the upper end of the outer side of the telescopic block.

[0015] Beneficial effects: Compared with the prior art, this application has the following advantages:

[0016] 1. This retractable rudder, which improves rudder efficiency, has a retractable rudder and retractable plate installed inside the rudder blade body and rotating plate via a telescopic rod. When the telescopic rod is activated synchronously, the retractable rudder and retractable plate extend downwards simultaneously, increasing the overall area. Moreover, the lower end of the retractable rudder is connected to the lower end of the retractable plate, ensuring overall stability and consistency. When the rudder blade body and rotating plate rotate for adjustment, the retractable rudder and retractable plate will also adjust at the same angle, and the retractable plate will also rotate at the same angle as the rotating plate. This retractable rudder not only increases the area of ​​the rudder blade body and rotating plate simultaneously, but also allows for simultaneous control of the retractable rudder and retractable plate to rotate and adjust at the same angle as the rudder blade body and rotating plate, greatly improving rudder efficiency. The increased area achieves the desired effect.

[0017] 2. The telescopic rudder that improves rudder efficiency has a telescopic block device installed inside the telescopic rudder body. Due to the structure such as the rotating rod between the rudder body and the rotating plate, when the telescopic rudder and the telescopic plate extend simultaneously, there will be a certain gap between them. Water flowing out of the gap will also affect the rudder efficiency. The telescopic block device of this application can fill the gap between the telescopic rudder and the telescopic plate. When the telescopic rudder and the telescopic plate extend together, the telescopic block extends from the telescopic rudder with the help of the spring force to fill the gap, making the overall rudder area larger and preventing turbulence, thus further improving the rudder efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a retractable rudder that can improve rudder efficiency.

[0019] Figure 2 This is a schematic diagram of a telescopic rudder structure that can improve rudder efficiency;

[0020] Figure 3 This is a schematic diagram of the retractable rudder section, which can improve rudder efficiency.

[0021] Figure 4 This is a schematic diagram of the telescopic rudder structure;

[0022] Figure 5 This is a diagram showing the retractable rudder extended. Detailed Implementation

[0023] The present invention will now be further described with reference to the accompanying drawings.

[0024] As shown in the figure, a telescopic rudder that can improve rudder efficiency includes a rudder blade body 1, a rotating plate 2, a telescopic rudder 6, a telescopic plate 7, and a telescopic block device 12. The rotating plate 2 is embedded in one side of the rudder blade body 1 via a rotating rod 5. A rotating shaft device 3 with a driving function is installed on the top of the rudder blade body 1, and a limiting shaft 4 connected to the rotating plate 2 is provided on one side of the rotating shaft device 3. The driving method of this telescopic rudder is consistent with the prior art. The rotating shaft device 3 drives the rudder blade body 1 to rotate and adjust in a mirror image, and at the same time, the rotating plate 2 is adjusted through the limiting shaft 4 to ensure the normal adjustment angle of the telescopic rudder shell. The rudder blade body 1 and the rotating plate 2 are provided with cavities with openings at the bottom, and the telescopic rudder 6 and the telescopic plate 7 are respectively provided in the cavities. The lower end of the cavity is provided with an opening. In the normal state, the lower ends of the telescopic rudder 6 and the telescopic plate 7 protrude from the cavity. In the initial state, the connecting rod 8 of the telescopic plate 7 is embedded with the protruding plate 601 to ensure the overall stability.

[0025] Synchronous telescopic rods 9 are installed between the top of the telescopic rudder 6 and the interior of the rudder body 1, and between the top of the telescopic plate 7 and the interior of the rotating plate 2. These synchronous telescopic rods 9 are connected to a hydraulic adjustment device 10. The hydraulic adjustment device 10 and the synchronous telescopic rods 9 are sealed. A microcontroller is installed on the hydraulic adjustment device 10. The microcontroller communicates wirelessly with the control unit and controls the extension and retraction of the synchronous telescopic rods 9 via wireless signals. The extension and retraction of the synchronous telescopic rods 9 can drive the telescopic rudder 6 and the telescopic plate 7 to move downwards simultaneously, increasing the overall rudder surface area. The upper ends of the telescopic rudder 6 and the telescopic plate 7 will not completely slide out of the rudder body 1 and the rotating plate 2. The upper end of the telescopic rudder 7 is always inside the cavity of the rudder body 1 and the rotating plate 2, and the lower end of the telescopic rudder 6 is connected to the lower end of the telescopic rudder 7, ensuring overall stability and consistency. When the rudder body 1 and the rotating plate 2 are rotated and adjusted, the telescopic rudder 6 and the telescopic rudder 7 will also be adjusted at the same angle, and the telescopic rudder 7 will also rotate at the same angle as the rotating plate 2. This telescopic rudder can not only increase the area of ​​the rudder body 1 and the rotating plate 2 at the same time, but also control the telescopic rudder 6 and the telescopic rudder 7 to rotate and adjust at the same angle as the rudder body 1 and the rotating plate 2, which greatly improves the rudder efficiency and makes the increase in area achieve the ideal effect.

[0026] A longitudinal telescopic groove 15 is provided on one side of the telescopic rudder 6, and a telescopic block device 12 is embedded in the telescopic groove 15 through a spring 14. The telescopic block device 12 includes a telescopic block 13, and the telescopic block 13 forms a telescopic structure with the telescopic rudder 6 through the spring 15. When the telescopic rudder 6 is inside the cavity of the main body, the telescopic block 13 is compressed and will not protrude. When the telescopic rudder 6 extends out of the cavity, the telescopic block 13 is pushed by the spring 15 to slide the telescopic rudder 6. Due to the structure such as the rotating rod 5 between the rudder body 1 and the rotating plate 2, when the telescopic rudder 6 and the telescopic plate 7 extend at the same time, there will be a certain gap between the telescopic rudder 6 and the telescopic plate 7. Water flowing out of the gap will also affect the rudder efficiency. When the telescopic rudder 6 and the telescopic plate 7 extend together, the telescopic block 13 extends out of the telescopic rudder 6 with the help of the spring 15 to fill the gap, making the overall rudder area larger and preventing water flow from causing turbulence, thus further improving the rudder efficiency.

[0027] The inner surfaces of the rudder body 1 and the rotating plate 2 are uniformly provided with grooves 602, and rotatable auxiliary wheels 11 are embedded in the grooves 602. The diameter of the auxiliary wheels 11 is greater than the depth of the grooves 602. The auxiliary wheels 11 are in contact with the outer surfaces of the telescopic rudder 6 and the telescopic plate 7 on both sides. When the telescopic rudder 6 and the telescopic plate 7 extend and retract, the auxiliary wheels 11 will assist the telescopic rudder 6 and the telescopic plate 7 in extending and retracting, making it more convenient to use and preventing huge friction. This prevents excessive sliding friction from affecting the normal extension and retraction of the telescopic rudder 6 and the telescopic plate 7.

[0028] The telescopic rudder 6 has a protruding plate 601 at its lower end facing the telescopic plate 7. The telescopic rudder 6 and the protruding plate 601 are an integrated structure. The telescopic plate 7 and the telescopic rudder 6 have a connecting rod 8 at their lower ends on the opposite side. One end of the connecting rod 8 is embedded in the protruding plate 601. The telescopic plate 7 can rotate on the protruding plate 601 through the connecting rod 8, ensuring the overall strength of the telescopic plate 7 and the telescopic rudder 6.

[0029] Several longitudinal sliding grooves 151 are evenly arranged inside the telescopic groove 15. Sliding blocks 131 are evenly arranged on both sides of the telescopic block 13. The sliding blocks 131 cooperate with the sliding grooves 151. The telescopic block 13 slides under the restriction of the sliding grooves 151. The front end of the sliding groove 151 is closed. The telescopic block 13 can only slide a certain distance. The sliding stroke of the telescopic block 13 is consistent with the distance between the telescopic rudder 6 and the telescopic plate 7. This ensures that the extension length of the telescopic block 13 can just fill the gap between the telescopic rudder 6 and the telescopic plate 7, preventing water from flowing through the gap between the telescopic rudder 6 and the telescopic plate 7, thus preventing the groove from forming a vortex and affecting the rudder effect.

[0030] Several telescopic blocks 13 are provided so that no matter how far the telescopic rudder 6 extends, there will always be a telescopic block 13 to fill the gap. A spring 14 is fixedly connected to the back of the telescopic block 13, which improves the connection strength. The upper outer end of the telescopic block 13 is a slope. The lower end of the cavity inside the rudder body 1 corresponding to the telescopic block device 12 is provided with a chamfered surface, and this chamfered surface cooperates with the slope of the upper outer end of the telescopic block 13. When the telescopic rudder 6 retracts, the slope of the telescopic block 13 will first touch the chamfered surface of the cavity. Under the pressure of the chamfered surface, the telescopic block 13 will retract. Therefore, the chamfered surface of the cavity can ensure that the telescopic block 13 can be retracted smoothly.

[0031] This invention provides a concept and implementation method for a telescopic rudder that can improve rudder efficiency. There are many specific applications. The above is only a preferred embodiment of this invention. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of this invention, and these improvements should also be considered within the scope of protection of this invention.

Claims

1. A telescopic rudder that can improve rudder efficiency, characterized in that: The device includes a rudder body (1), a rotating plate (2), a telescopic rudder (6), a telescopic plate (7), and a telescopic block device (12). The rotating plate (2) is embedded on one side of the rudder body (1) via a rotating rod (5). A rotating shaft device (3) with a driving function is installed on the top of the rudder body (1). A limiting shaft (4) connected to the rotating plate (2) is provided on one side of the rotating shaft device (3). The rudder body (1) and the rotating plate (2) are provided with cavities with openings at the bottom. The telescopic rudder (6) and the telescopic plate (7) are respectively provided in the cavities. The top of the telescopic rudder (6) and the interior of the rudder blade body (1) and the top of the telescopic plate (7) and the interior of the rotating plate (2) are both provided with synchronous telescopic rods (9), and the synchronous telescopic rods (9) are connected to the hydraulic adjustment device (10); a longitudinal telescopic groove (15) is provided on one side of the telescopic rudder (6), and a telescopic block device (12) is embedded in the telescopic groove (15) through a spring (14). The telescopic block device (12) includes a telescopic block (13), and the telescopic block (13) and the telescopic rudder (6) form a telescopic structure through the spring (14).

2. The telescopic rudder that can improve rudder efficiency according to claim 1, characterized in that: The inner surface of the cavity of the rudder body (1) and the rotating plate (2) is uniformly provided with grooves (602), and a rotatable auxiliary wheel (11) is embedded in the groove (602). The diameter of the auxiliary wheel (11) is greater than the depth of the groove (602), and the auxiliary wheel (11) is in contact with the outer surfaces of the telescopic rudder (6) and the telescopic plate (7) on both sides.

3. The telescopic rudder that can improve rudder efficiency according to claim 1, characterized in that: The telescopic rudder (6) has a protruding plate (601) at its lower end facing the telescopic plate (7), and a connecting rod (8) is provided at the lower end of the telescopic plate (7) on the side corresponding to the telescopic rudder (6), with one end of the connecting rod (8) embedded in the protruding plate (601).

4. The telescopic rudder that can improve rudder efficiency according to claim 1, characterized in that: The telescopic groove (15) is uniformly provided with a number of longitudinal sliding grooves (151), and sliding blocks (131) are uniformly provided on both sides of the telescopic block (13). The sliding blocks (131) cooperate with the sliding grooves (151), and the sliding stroke of the telescopic block (13) is consistent with the distance between the telescopic rudder (6) and the telescopic plate (7).

5. The telescopic rudder that can improve rudder efficiency according to claim 1, characterized in that: The telescopic block (13) is provided in several parts, and a spring (14) is fixedly connected to the back of the telescopic block (13). The upper outer side of the telescopic block (13) is a slope.

6. The telescopic rudder that can improve rudder efficiency according to claim 5, characterized in that: The rudder blade body (1) has an oblique cut surface at the lower end of the side corresponding to the telescopic block device (12), and the oblique cut surface matches the oblique surface at the upper end of the outer side of the telescopic block (13).

7. The telescopic rudder that can improve rudder efficiency according to claim 4, characterized in that: Limiting blocks are provided at both ends of the sliding groove (151).

8. The telescopic rudder that can improve rudder efficiency according to claim 1, characterized in that: The lower ends of the telescopic rudder (6) and telescopic plate (7) protrude from the cavity.

9. The telescopic rudder that can improve rudder efficiency according to claim 1, characterized in that: The volume of the telescopic block (13) is not less than the maximum gap between the telescopic rudder (6) and the telescopic plate (7).

10. The telescopic rudder that can improve rudder efficiency according to claim 1, characterized in that: The hydraulic adjustment device (10) is equipped with a microcontroller, which communicates wirelessly with the controller and controls the extension and retraction of the synchronous telescopic rod (9) via wireless signals.

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