Ship propeller flow guiding device

Abstract

The utility model relates to the field of ship engineering, and discloses a ship propeller flow guide device which comprises a flow guide cover body, a sacrificial anode is slidably connected into the flow guide cover body, a bolt head is rotatably connected into the flow guide cover body, and a first bevel gear is fixedly connected to the bottom of the bolt head. A second bevel gear is rotatably connected to the interior of the flow guide cover body, a third bevel gear is rotatably connected to the interior of the flow guide cover body, the third bevel gear is meshed with the other second bevel gear, and a threaded rod is fixedly connected to the top of the third bevel gear. According to the utility model, the effects that the sacrificial anode is fixed on the flow guide device through the clamp, so that the anode is easier to replace when needed, and a complicated drilling or bolt replacement process is not needed are achieved, and the problems that when the anode is installed in the existing flow guide device, the surface of the flow guide device needs to be drilled, and the operation is complicated are solved. Therefore, the installation complexity and workload are increased, and the installation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of ship engineering, and particularly relates to a ship propeller fairing device. Background Art

[0002] The ship propeller fairing device is an important component in ship engineering. Its design and function aim to optimize the ship's propulsion system. These devices effectively improve the propulsion efficiency of the propeller by improving the way water enters and exits the propeller. The fairing device can reduce the vortices and losses of water flow, thereby reducing the resistance of the propeller, enabling the ship to sail more efficiently, reducing fuel consumption, and also helping to reduce the impact on the marine environment. Therefore, the ship propeller fairing device is not only a key technology to improve the performance and economy of the ship, but also an important means to protect the marine ecological environment.

[0003] The fairing device is usually installed around the propeller and can be a structure fixed to the hull or part of the propeller. Its design takes into account the dynamic characteristics of the water flow around the propeller. The operating principle of the fairing device is based on the optimized control of water flow dynamics. Through shape design, hydrodynamic analysis, and experimental verification, they aim to reduce the water flow vortices and losses from the propeller movement. The fairing device can guide the water flow into the propeller more effectively, improve the propeller's propulsion efficiency by reducing unnecessary hydrodynamic losses and increasing the uniformity of the water flow.

[0004] However, when installing anodes on the existing fairing device, drilling is required on the surface of the fairing device, which increases the complexity and workload of installation. Especially in the case of large ships or when multiple anodes need to be replaced, this process will consume a large amount of time and human resources. For this reason, a ship propeller fairing device is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a ship propeller fairing device, aiming to improve the problem that when installing anodes on the existing fairing device in the prior art, drilling is required on the surface of the fairing device, which increases the complexity and workload of installation.

[0006] To achieve the above object, the present utility model adopts the following technical solutions: A ship propeller fairing device includes a fairing body. A sacrificial anode is slidably connected inside the fairing body. A bolt head is rotatably connected inside the fairing body. A first bevel gear is fixedly connected to the bottom of the bolt head. A second bevel gear is rotatably connected inside the fairing body. The second bevel gear meshes with the first bevel gear. A transmission column is fixedly connected to one side of the outer wall of the second bevel gear. One side of the outer wall of the transmission column is fixedly connected to one side of the outer wall of another second bevel gear. A third bevel gear is rotatably connected inside the fairing body. The third bevel gear meshes with another second bevel gear. A threaded rod is fixedly connected to the top of the third bevel gear. A triangular slider is threadedly connected to the outer wall of the threaded rod. A first transmission rod is rotatably connected inside the fairing body. A clamping column is rotatably connected to one side of the outer wall of the first transmission rod. A second transmission rod is fixedly connected to the outer wall of the triangular slider. One side of the outer wall of the second transmission rod is rotatably connected to one side of the outer wall of the clamping column. A vibration damping component is arranged inside the fairing body, and the vibration damping component is used for vibration damping and buffering of the fairing body;

[0007] As a further description of the above technical solution: The vibration damping component includes a first connecting block and a first damper. The bottom of the first connecting block is fixedly connected to the output end of the first damper. The bottom of the first damper is fixedly connected to the top of another first connecting block. The outer walls of another first connecting block are fixedly connected inside the fairing body;

[0008] As a further description of the above technical solution: A third transmission rod is rotatably connected to one side of the outer wall of the first connecting block;

[0009] As a further description of the above technical solution: A first spring is fixedly connected between the two first connecting blocks;

[0010] As a further description of the above technical solution: A second connecting block is rotatably connected to one side of the outer wall of the third transmission rod;

[0011] As a further description of the above technical solution: A second spring is fixedly connected to one side of the outer walls of the two second connecting blocks;

[0012] As a further description of the above technical solution: A second damper is fixedly connected to one side of the outer wall of the second connecting block, and the output end of the second damper is fixedly connected to one side of the outer wall of another second connecting block;

[0013] As a further description of the above technical solution: A connecting frame is fixedly connected to the outer wall of the first connecting block. A connecting piece is fixedly connected to one side of the outer wall of the connecting frame. A screw propeller is rotatably connected inside the connecting piece.

[0014] The present utility model has the following beneficial effects:

[0015] 1. In the present utility model, through the cooperation among the bolt head, the first bevel gear, the second bevel gear, the third bevel gear, the transmission column, the threaded rod, the triangular slider, the first transmission rod, the second transmission rod and the clamping column, the sacrificial anode is fixed on the flow guiding device by means of a fixture, making it easier to replace the anode when needed without the need for a complex drilling or bolt replacement process. This solves the problem that the existing flow guiding device requires drilling on the surface of the flow guiding device when installing the anode, which increases the complexity and workload of installation, and reduces the installation difficulty.

[0016] 2. In the present utility model, through the cooperation among the first damper, the first spring, the first connecting block, the second connecting block, the third transmission rod, the second damper and the second spring, the vibration energy generated during the operation of the propeller can be absorbed or dispersed during use, preventing this vibration from being transmitted to the fairing, thereby reducing the occurrence of resonance. This solves the problem that the absence of a vibration damping mechanism may cause fatigue damage to the connection between the fairing and the propeller or other structures around it, thereby increasing the maintenance cost and the ship's berthing time, and extends the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of a ship propeller flow guiding device proposed by the present utility model;

[0018] Figure 2 is a schematic diagram of the connection frame structure of a ship propeller flow guiding device proposed by the present utility model;

[0019] Figure 3 is Figure 2 the enlarged schematic diagram at A in

[0020] Figure 4 is a schematic diagram of the first connecting block structure of a ship propeller flow guiding device proposed by the present utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Fairing body; 2. Connection frame; 3. Connector; 4. Sacrificial anode; 5. Propeller; 6. Bolt head; 7. First bevel gear; 8. Second bevel gear; 9. Transmission column; 10. Third bevel gear; 11. Threaded rod; 12. Triangular slider; 13. First transmission rod; 14. Second transmission rod; 15. Clamping column; 16. First damper; 17. First spring; 18. First connecting block; 19. Second connecting block; 20. Third transmission rod; 21. Second damper; 22. Second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Referring to Figure 1 - Figure 3 , an embodiment provided by the present invention: A ship propeller fairing device includes a fairing body 1, a sacrificial anode 4 is slidably connected inside the fairing body 1, a bolt head 6 is rotatably connected inside the fairing body 1, a first bevel gear 7 is fixedly connected to the bottom of the bolt head 6, a second bevel gear 8 is rotatably connected inside the fairing body 1, the second bevel gear 8 meshes with the first bevel gear 7, a transmission column 9 is fixedly connected to one side of the outer wall of the second bevel gear 8, a transmission column 9 is fixedly connected to one side of the outer wall of another second bevel gear 8, a third bevel gear 10 is rotatably connected inside the fairing body 1, the third bevel gear 10 meshes with another second bevel gear 8, a threaded rod 11 is fixedly connected to the top of the third bevel gear 10, a triangular slider 12 is threadedly connected to the outer wall of the threaded rod 11, a first transmission rod 13 is rotatably connected inside the fairing body 1, a clamping column 15 is rotatably connected to one side of the outer wall of the first transmission rod 13, a second transmission rod 14 is fixedly connected to the outer wall of the triangular slider 12, and one side of the outer wall of the second transmission rod 14 is rotatably connected to one side of the outer wall of the clamping column 15. A damping component is arranged inside the fairing body 1, and the damping component is used for damping and buffering the fairing body 1;

[0025] Specifically, when using this ship propeller fairing device and needing to replace the sacrificial anode 4, first use a tool to rotate the bolt head 6. The rotation of the bolt head 6 drives the rotation of the first bevel gear 7, and the movement of the first bevel gear 7 is transmitted to the second bevel gear 8. The rotation of the second bevel gear 8 is further transmitted to another transmission column 9 through the interaction of the transmission column 9. The rotation of the transmission column 9 drives the rotation of the third bevel gear 10. The rotation of the third bevel gear 10 causes the threaded rod 11 to be forced to rotate. The rotation of the threaded rod 11 causes the triangular slider 12 to move upward under force, and this movement drives the movement of the second transmission rod 14, causing the clamping column 15 to contract towards the threaded rod 11, releasing the fixation of the sacrificial anode 4. In this way, the operator can easily remove the sacrificial anode 4 for necessary replacement or maintenance work. The whole process reflects the ingenious concept in ship design and the precision of mechanical engineering, ensuring the safe operation and efficient operation of the ship in the marine environment.

[0026] Referring to Figure 1 - Figure 4, the vibration damping assembly includes a first connecting block 18 and a first damper 16. The bottom of the first connecting block 18 is fixedly connected to the output end of the first damper 16. The bottom of the first damper 16 is fixedly connected to the top of another first connecting block 18. The outer walls of the other first connecting block 18 are fixedly connected inside the fairing body 1;

[0027] Specifically, during the use of the ship propeller fairing device, the first damper 16 absorbs and converts the vibration energy on the first connecting block 18, preventing its vibration from being transmitted to the fairing body 1, which can extend the service life of the fairing body 1.

[0028] Refer to Figure 1 - Figure 3 , one side of the outer wall of the first connecting block 18 is rotatably connected to a third transmission rod 20. A first spring 17 is fixedly connected between the two first connecting blocks 18. One side of the outer wall of the third transmission rod 20 is rotatably connected to a second connecting block 19. A second spring 22 is fixedly connected to one side of the outer walls of the two second connecting blocks 19. A second damper 21 is fixedly connected to one side of the outer wall of the second connecting block 19. The output end of the second damper 21 is fixedly connected to one side of the outer wall of the other second connecting block 19. A connecting frame 2 is fixedly connected to the outer wall of the first connecting block 18. A connecting piece 3 is fixedly connected to one side of the outer wall of the connecting frame 2. A screw propeller 5 is rotatably connected inside the connecting piece 3;

[0029] Specifically, during the use of the ship propeller fairing device, the vibration generated by the screw propeller 5 is inevitable. These vibrations are transmitted to the first connecting block 18 through the connecting frame 2. To effectively manage these vibrations, a combination of the first damper 16 and the first spring 17 is ingeniously introduced in the ship design. They play a key role in the vibration transmission process. When the vibration energy is transmitted to the first connecting block 18, the first damper 16 and the first spring 17 work together. Through their physical properties, they can absorb and convert a part of the vibration energy, thereby reducing the impact of vibration on the ship structure. When the first connecting block 18 is squeezed, the movement of the upper and lower first connecting blocks 18 will drive the movement of the second connecting block 19 through the third transmission rod 20. The movement of the second connecting block 19 will trigger the response of the second damper 21 and the second spring 22, enabling further absorption and conversion of the vibration energy and further reducing the possibility of resonance. This multi-level vibration management mechanism ensures that the ship can maintain stability and safety during navigation, while also improving the comfort and durability of the ship. Through this carefully designed vibration control strategy, the ship can operate more efficiently in various sea conditions, ensuring the safety of the ship and the crew.

[0030] Working principle: When it is necessary to replace the sacrificial anode 4 during the use of this ship propeller flow guiding device, first use a tool to rotate the bolt head 6. Subsequently, the bolt head 6 drives the first bevel gear 7 to rotate, thereby driving the second bevel gear 8 to rotate. At this time, the rotation of the second bevel gear 8 drives another transmission column 9 to rotate through the transmission column 9. The rotation of the transmission column 9 will drive the third bevel gear 10 to rotate, thereby causing the threaded rod 11 to rotate under force. When the threaded rod 11 rotates, the triangular slider 12 will move upward under force, thereby driving the second transmission rod 14 to move, causing the clamping column 15 to contract towards the threaded rod 11, releasing the fixation of the sacrificial anode 4. At this time, the sacrificial anode 4 can be removed for replacement. When this ship propeller flow guiding device is in use, when the vibration generated by the propeller 5 occurs, its vibration force is transmitted to the first connecting block 18 through the connecting frame 2. At this time, through the cooperation of the first damper 16 and the first spring 17, a part of the vibration energy is absorbed and converted. When it is squeezed, the movement of the upper and lower first connecting blocks 18 will drive the second connecting block 19 to move through the third transmission rod 20. At this time, the second damper 21 and the second spring 22 further absorb and convert its vibration energy, so as to reduce the occurrence of resonance.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A ship propeller flow guiding device, comprising a flow guiding cover body (1), characterized in that: A sacrificial anode (4) is slidably connected inside the fairing body (1). A bolt head (6) is rotatably connected inside the fairing body (1). A first bevel gear (7) is fixedly connected to the bottom of the bolt head (6). A second bevel gear (8) is rotatably connected inside the fairing body (1). The second bevel gear (8) meshes with the first bevel gear (7). A transmission column (9) is fixedly connected to one side of the outer wall of the second bevel gear (8). One side of the outer wall of the transmission column (9) is fixedly connected to one side of the outer wall of another second bevel gear (8). A third bevel gear (10) is rotatably connected inside the fairing body (1). The third bevel gear (10) meshes with the other second bevel gear (8). A threaded rod (11) is fixedly connected to the top of the third bevel gear (10). A triangular slider (12) is threadedly connected to the outer wall of the threaded rod (11). A first transmission rod (13) is rotatably connected inside the fairing body (1). A clamping column (15) is rotatably connected to one side of the outer wall of the first transmission rod (13). A second transmission rod (14) is fixedly connected to the outer wall of the triangular slider (12). One side of the outer wall of the second transmission rod (14) is rotatably connected to one side of the outer wall of the clamping column (15). A damping component is arranged inside the fairing body (1), and the damping component is used for damping and buffering the fairing body (1).

2. The marine propeller flow guiding device according to claim 1, characterized in that: The damping component includes a first connecting block (18) and a first damper (16). The bottom of the first connecting block (18) is fixedly connected to the output end of the first damper (16). The bottom of the first damper (16) is fixedly connected to the top of another first connecting block (18). The outer walls of the other first connecting blocks (18) are fixedly connected inside the fairing body (1).

3. The a ship propeller flow guiding device according to claim 2, characterized in that: A third transmission rod (20) is rotatably connected to one side of the outer wall of the first connecting block (18).

4. The ship propeller flow guiding device according to claim 3, characterized in that: A first spring (17) is fixedly connected between the two first connecting blocks (18).

5. The a ship propeller flow guiding device according to claim 4, characterized in that: A second connecting block (19) is rotatably connected to one side of the outer wall of the third transmission rod (20).

6. The marine propeller flow guide device according to claim 5, characterized in that: A second spring (22) is fixedly connected to one side of the outer walls of the two second connecting blocks (19).

7. The marine propeller flow guiding device according to claim 6, characterized in that: A second damper (21) is fixedly connected to one side of the outer wall of the second connecting block (19), and the output end of the second damper (21) is fixedly connected to one side of the outer wall of the other second connecting block (19).

8. A ship propeller guiding device according to claim 4, characterized in that: A connecting frame (2) is fixedly connected to the outer wall of the first connecting block (18). A connecting piece (3) is fixedly connected to one side of the outer wall of the connecting frame (2). A screw propeller (5) is rotatably connected inside the connecting piece (3).

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