Bottom drive type ship propeller

Abstract

The utility model relates to the technical field of ship propellers, and discloses a bottom drive type ship propeller which comprises a stern, a second motor is fixedly connected to the top of the stern, a fixing column is fixedly connected to the output end of the second motor, a sliding key column is slidably connected to the interior of the fixing column, and a first traction wheel is rotatably connected to the bottom of the sliding key column. A second traction wheel is fixedly connected to the bottom of the first traction wheel, a starting device is rotatably connected to the bottom of the second traction wheel, a machine shell is fixedly connected to the bottom of the starting device, a propeller is rotatably connected to the interior of the machine shell, a fixed disc is rotatably connected to the outer wall of the starting device, and a lifting frame is arranged on the outer wall of the fixed disc. According to the utility model, the angle adjustment of the propeller is realized, the hydrodynamic performance of the ship is improved by accurately adjusting the direction and strength of the propulsive force, the problem that the propulsive angle is fixed and cannot be conveniently adjusted is solved, and the operability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship propellers, in particular to a bottom-driven ship propeller. Background Art

[0002] A ship is an artificial vehicle mainly operating in geographical waters. Additionally, civilian ships are generally called boats, military ships are called warships, and small ships are called yachts or boats, and their general term is ships or vessels. Its interior mainly includes accommodation space, support structure, and drainage structure, and has a propulsion system that utilizes external or self-provided energy. Its shape is generally a streamlined envelope that is conducive to overcoming fluid resistance, and the materials have been continuously updated with the progress of technology. In the early days, natural materials such as wood, bamboo, and hemp were used, and in modern times, steel, as well as aluminum, fiberglass, acrylic, and various composite materials are used. A ship propeller is a key component of a ship and is used to propel the hull forward.

[0003] Traditional ship propellers can be installed at the bottom of the ship to reduce the transmission loss of the propulsion system and improve the propulsion efficiency, especially in the case of large ships or ships that need to sail for a long time. For common types of bottom-driven propellers, they are connected to the engine through a traditional shaft drive system, which helps to reduce the motion inertia of the ship and improve the response speed to steering commands, thereby enhancing the safety of the ship.

[0004] However, for bottom-driven traditional ship propellers, the propellers are mostly in a fixed state and cannot be conveniently angle-driven, so the steering ability of the ship is limited. The ship can only rely on the rudder or thruster to perform steering operations, which may limit the maneuverability and controllability of the ship in narrow waterways or complex operating environments. Therefore, a bottom-driven ship propeller 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 bottom-driven ship propeller, aiming to improve the problem that the ship cannot be conveniently angle-driven in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A bottom-driven ship propeller, including the stern. A second motor is fixedly connected to the top of the stern. The output end of the second motor is fixedly connected to a fixed column. A sliding key column is slidably connected inside the fixed column. A first traction wheel is rotatably connected to the bottom of the sliding key column. A second traction wheel is fixedly connected to the bottom of the first traction wheel. A starting device is rotatably connected to the bottom of the second traction wheel. The bottom of the starting device is fixedly connected to a housing. A propeller is rotatably connected inside the housing. A fixed disc is rotatably connected to the outer wall of the starting device. A lifting frame is arranged on the outer wall of the fixed disc. A third motor is fixedly connected inside the lifting frame. A worm is fixedly connected to the output end inside the third motor. A worm gear is rotatably connected inside the lifting frame. The worm gear meshes with the worm. The outer wall of the worm gear is fixedly connected to the outer wall of the fixed disc. A drainage assembly is arranged at the bottom of the fixed disc. The drainage assembly functions to drain water for the propeller;

[0008] As a further description of the above technical solution:

[0009] The drainage assembly includes a connecting rod and a fluid guide. The outer wall of the connecting rod is fixedly connected inside the housing. The outer wall of the fluid guide is fixedly connected to the outer wall of the connecting rod;

[0010] As a further description of the above technical solution:

[0011] A first motor is fixedly connected to the outer wall of the stern. The output end of the first motor is fixedly connected to a connecting column;

[0012] As a further description of the above technical solution:

[0013] The outer wall of the connecting column is rotatably connected inside the stern. A second conical gear is fixedly connected to the outer wall of the connecting column;

[0014] As a further description of the above technical solution:

[0015] A threaded rod is rotatably connected inside the stern. A first conical gear is fixedly connected to the top of the threaded rod;

[0016] As a further description of the above technical solution:

[0017] The outer wall of the first conical gear is rotatably connected inside the stern. The first conical gear meshes with the second conical gear;

[0018] As a further description of the above technical solution:

[0019] The outer wall of the threaded rod is threadedly connected inside the lifting frame. A sliding column is slidably connected inside the lifting frame;

[0020] As a further description of the above technical solution:

[0021] Both ends of the sliding column are fixedly connected inside the stern, and a lifting hole is provided inside the stern.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the starting device realizes its rotation function through the starting motor. When the starting motor is activated, structures such as the traction wheel, sliding key column, worm gear, and worm will be linked accordingly to realize the angle adjustment of the propeller. By precisely adjusting the direction and intensity of the propulsion force, the hydrodynamic performance of the ship can be improved, including aspects such as speed, steering response, and fuel efficiency, solving the problem that the propulsion angle is fixed and cannot be conveniently adjusted, and improving the operability.

[0024] 2. In the utility model, the lifting frame realizes its lifting function through the starting motor. When the starting motor is activated, structures such as the threaded column, conical gear, and sliding column will be linked accordingly to realize the lifting of the propeller, enabling the ship to operate in waters of different depths, solving the problem that it cannot be adjusted according to the sea conditions, and improving the flexibility of the device. Description of the Drawings

[0025] Figure 1 is a three-dimensional schematic diagram of a bottom-driven ship propeller proposed by the utility model;

[0026] Figure 2 is a schematic diagram of the internal structure of the stern of a bottom-driven ship propeller proposed by the utility model;

[0027] Figure 3 is a schematic diagram of the internal structure of the lifting frame of a bottom-driven ship propeller proposed by the utility model.

[0028] Legend Explanation:

[0029] 1. Stern; 2. Motor 1; 3. Motor 2; 4. Housing; 5. Propeller; 6. Connecting rod; 7. Fairing; 8. Lifting frame; 9. Threaded rod; 10. Conical gear 1; 11. Fixed column; 12. Sliding key column; 13. Sliding column; 14. Traction wheel 1; 15. Traction wheel 2; 16. Starting device; 17. Fixed disk; 18. Motor 3; 19. Worm; 20. Lifting hole; 21. Worm gear; 22. Conical gear 2; 23. Connecting column. Detailed Embodiment

[0030] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0031] Referring to Figures 1 - 3 Figures 1 - 3 , an embodiment provided by the utility model: a bottom-driven ship propeller, comprising a ship stern 1, a second motor 3 fixedly connected to the top of the ship stern 1, a fixed column 11 fixedly connected to the output end of the second motor 3, a sliding key column 12 slidably connected inside the fixed column 11, a first traction wheel 14 rotatably connected to the bottom of the sliding key column 12, a second traction wheel 15 fixedly connected to the bottom of the first traction wheel 14, a starting device 16 rotatably connected to the bottom of the second traction wheel 15, a housing 4 fixedly connected to the bottom of the starting device 16, a propeller 5 rotatably connected inside the housing 4, a fixed disc 17 rotatably connected to the outer wall of the starting device 16, a lifting frame 8 arranged on the outer wall of the fixed disc 17, a third motor 18 fixedly connected inside the lifting frame 8, a worm 19 fixedly connected to the inner output end of the third motor 18, a worm gear 21 rotatably connected inside the lifting frame 8, the worm gear 21 meshing with the worm 19, the outer wall of the worm gear 21 fixedly connected to the outer wall of the fixed disc 17, a flow guiding assembly arranged at the bottom of the fixed disc 17, and the flow guiding assembly acting on guiding the flow of the propeller 5.

[0032] Specifically, start the second motor 3, drive the fixed column 11 to rotate through the second motor 3, then drive the sliding key column 12 to rotate through the fixed column 11, then drive the first traction wheel 14 to rotate through the sliding key column 12, then drive the second traction wheel 15 to rotate through the first traction wheel 14, and then drive the starting device 16 to rotate through the second traction wheel 15, so as to drive the propeller 5 to rotate left and right, which can change the direction of the propulsive force, thereby increasing the maneuverability of the ship. Especially when complex lateral movement is required or in narrow waterways, ports or during berthing, this design can provide additional mobility, making it easier for the ship to perform lateral movement and steering operations. Then start the third motor 18, drive the worm 19 to rotate through the third motor 18, utilize the meshing between it and the worm gear 21 to ensure the transmission of large torque and moment, thereby drive the fixed disc 17 to rotate through the worm gear 21, so as to drive the propeller 5 to rotate vertically, which can improve the stability and controllability of the ship. When the wind and waves are large or more precise ship position control is required, by adjusting the angle of the propeller 5, the changes in the external environment can be more effectively responded to, and the stability and course control of the ship can be maintained.

[0033] Referring to Figures 1 - 2 Figures 1 - 2 , the flow guiding assembly comprises a connecting rod 6 and a flow deflector 7, the outer wall of the connecting rod 6 is fixedly connected inside the housing 4, and the outer wall of the flow deflector 7 is fixedly connected to the outer wall of the connecting rod 6.

[0034] Specifically, the flow deflector 7 in front of the propeller 5 guides the water flow in front of it, changes the flow direction and speed of the water flow, makes the water flow smoother, reduces the shear force of the water, thereby reducing the water resistance and improving the sailing speed of the ship.

[0035] Reference Figures 1 - 2 On the outer wall of the stern 1, a first motor 2 is fixedly connected. The output end of the first motor 2 is fixedly connected with a connecting column 23. The outer wall of the connecting column 23 is rotatably connected inside the stern 1. The outer wall of the connecting column 23 is fixedly connected with a second conical gear 22. Inside the stern 1, a threaded rod 9 is rotatably connected. The top of the threaded rod 9 is fixedly connected with a first conical gear 10. The outer wall of the first conical gear 10 is rotatably connected inside the stern 1. The first conical gear 10 meshes with the second conical gear 22. The outer wall of the threaded rod 9 is threadedly connected inside the lifting frame 8. Inside the lifting frame 8, a sliding column 13 is slidably connected. Both ends of the sliding column 13 are fixedly connected inside the stern 1. A lifting hole 20 is opened inside the stern 1.

[0036] Specifically, start the first motor 2. Drive the connecting column 23 to rotate through the first motor 2. Then drive the second conical gear 22 to rotate through the connecting column 23. Utilize the meshing between it and the first conical gear 10 to ensure the transmission of large torque and moment. Thus, drive the threaded rod 9 to rotate through the first conical gear 10. Then drive the lifting frame 8 to lift through the threaded rod 9. Then drive the propeller 5 to lift through the lifting frame 8. It can operate in waters of different depths. At the same time, retracting the propeller 5 can reduce its exposed area in the water, thereby reducing hydrodynamic resistance. This helps to improve the speed and fuel efficiency of the ship, which is particularly important when long-distance or high-speed navigation is required.

[0037] Working principle: Turn on the starting device 16. Drive the connected propeller 5 to rotate through the starting device 16 to move the hull. Then, the second motor 3 can be started. Drive the fixedly connected fixed column 11 to rotate through the second motor 3. Then drive the slidably connected sliding key column 12 to rotate through the fixed column 11. Then drive the rotatably connected first traction wheel 14 to rotate through the sliding key column 12. Subsequently, drive the fixedly connected second traction wheel 15 to rotate through the first traction wheel 14. Then drive the rotatably connected starting device 16 to rotate inside the fixed disk 17 it is rotatably connected to through the second traction wheel 15, thereby driving the propeller 5 to rotate left and right. Then, the third motor 18 can be started. Drive the fixedly connected worm 19 to rotate through the third motor 18. Then drive the meshing-connected worm gear 21 to rotate through the worm 19. Then drive the fixedly connected fixed disk 17 to rotate through the worm gear 21, thereby driving the propeller 5 to rotate downward to adjust the hull. Then, according to the river bottom conditions, start the first motor 2. Drive the fixedly connected connecting column 23 to rotate through the first motor 2. Then drive the fixedly connected second conical gear 22 to rotate through the connecting column 23. Then drive the meshing-connected first conical gear 10 to rotate through the second conical gear 22. Then drive the fixedly connected threaded rod 9 to rotate through the first conical gear 10. Subsequently, drive the threadedly connected lifting frame 8 to lift on the outer wall of the slidably connected sliding column 13 through the threaded rod 9, thereby driving the propeller 5 to lift inside the lifting hole 20.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded 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 utility model shall be included within the protection scope of the present utility model.

Claims

1. A bottom-driven ship propeller, comprising a ship stern (1), characterized in that: At the top of the stern (1), a second motor (3) is fixedly connected. The output end of the second motor (3) is fixedly connected to a fixed column (11). Inside the fixed column (11), a sliding key column (12) is slidably connected. At the bottom of the sliding key column (12), a first traction wheel (14) is rotatably connected. At the bottom of the first traction wheel (14), a second traction wheel (15) is fixedly connected. At the bottom of the second traction wheel (15), a starting device (16) is rotatably connected. The bottom of the starting device (16) is fixedly connected to a housing (4). Inside the housing (4), a propeller (5) is rotatably connected. On the outer wall of the starting device (16), a fixed disc (17) is rotatably connected. On the outer wall of the fixed disc (17), a lifting frame (8) is provided. Inside the lifting frame (8), a third motor (18) is fixedly connected. At the inner output end of the third motor (18), a worm (19) is fixedly connected. Inside the lifting frame (8), a worm gear (21) is rotatably connected. The worm gear (21) meshes with the worm (19). The outer wall of the worm gear (21) is fixedly connected to the outer wall of the fixed disc (17). At the bottom of the fixed disc (17), a flow guiding component is provided, and the flow guiding component functions to guide the flow for the propeller (5).

2. The bottom-driven ship propeller according to claim 1, characterized in that: The flow guiding component includes a connecting rod (6) and a flow deflector (7). The outer wall of the connecting rod (6) is fixedly connected inside the housing (4). The outer wall of the flow deflector (7) is fixedly connected to the outer wall of the connecting rod (6).

3. A bottom-driven ship propeller according to claim 1, characterized in that: On the outer wall of the stern (1), a first motor (2) is fixedly connected. The output end of the first motor (2) is fixedly connected to a connecting column (23).

4. A bottom-driven ship propeller according to claim 3, characterized in that: The outer wall of the connecting column (23) is rotatably connected inside the stern (1). On the outer wall of the connecting column (23), a second bevel gear (22) is fixedly connected.

5. A bottom-driven ship propeller according to claim 4, characterized in that: Inside the stern (1), a threaded rod (9) is rotatably connected. At the top of the threaded rod (9), a first bevel gear (10) is fixedly connected.

6. The bottom-driven ship propeller according to claim 5, characterized in that: The outer wall of the first bevel gear (10) is rotatably connected inside the stern (1). The first bevel gear (10) meshes with the second bevel gear (22).

7. The bottom-driven ship propeller according to claim 6, characterized in that: The outer wall of the threaded rod (9) is threadedly connected inside the lifting frame (8). Inside the lifting frame (8), a sliding column (13) is slidably connected.

8. A bottom-driven ship propeller according to claim 7, characterized in that: Both ends of the sliding column (13) are fixedly connected inside the stern (1). Inside the stern (1), a lifting hole (20) is provided.

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