Electric ship propeller

By designing protective and fixing components for electric ship propulsion, the problem of propeller damage caused by entanglement in seaweed or collision with floating objects was solved, achieving efficient operation and improved stability.

CN223479302UActive Publication Date: 2025-10-28GUILIN YICHI SHIP TECH CO LTD
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Patent Information

Application Number
CN202423266608.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2025-10-28
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

Existing ship propellers are prone to damage due to entanglement in seaweed or collision with floating objects, affecting propulsion efficiency and increasing maintenance costs.

Method used

An electric marine propulsion system was designed, comprising a main engine, a transmission assembly, a propeller, a protective assembly, and a fixed assembly. The protective assembly provides protection in areas with obstacles, while the fixed assembly ensures efficient operation in areas without obstacles. Furthermore, it is protected against damage by clamping devices and a protective net.

Benefits of technology

This effectively avoids propeller damage in areas with obstacles, maintains efficient operation, reduces maintenance costs and downtime risks, and improves the stability and safety of the propulsion system.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223479302U_ABST
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Abstract

The utility model relates to an electric ship thruster which comprises a main machine, a transmission assembly, a propeller, a protection assembly and a fixing assembly, the transmission assembly is arranged at the lower end of the main machine, and the output end of the main machine is connected with the input end of the transmission assembly; the propeller is arranged at the lower end of the transmission assembly, the output end of the transmission assembly is connected with the propeller, and the host drives the propeller to rotate through the transmission assembly. The upper end of the protection assembly is located on one side of the main machine, the middle of the protection assembly is movably connected with the transmission assembly, and the lower end of the protection assembly is located on one side of the propeller so that the protection assembly can protect the propeller. One end of the fixing assembly is rotationally connected with the upper end of the transmission assembly, and the other end of the fixing assembly is detachably connected with the ship body. Compared with the prior art, the propeller protection device not only can enable the propeller to operate efficiently, but also can protect the propeller.
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Description

Technical Field

[0001] This utility model relates to the field of ship propulsion technology, and more specifically, to an electric ship propulsion system. Background Technology

[0002] Rivers flowing through cities contain a large amount of floating debris, such as various aquatic plants (like seaweed), ropes, and discarded fishing nets. These objects can easily become entangled in the propellers or other rotating parts of ship propellers. For example, in rivers, lakes, and near-shore waters where aquatic plants grow abundantly, if the propeller becomes entangled in seaweed while a ship is sailing, it will cause a sharp increase in the propeller's rotational resistance.

[0003] When a propeller becomes entangled, its rotational speed decreases, affecting the ship's propulsion efficiency. In severe cases, it may prevent the propeller from rotating properly, causing the ship to lose power. Moreover, if this entanglement is not addressed promptly, the entanglement may tighten as the ship continues to sail, causing physical damage to the propeller, such as blade deformation.

[0004] Besides entangled debris, there may also be larger solid floating objects in the water, such as wood, metal fragments, and plastic waste. When a ship's propeller rotates at high speed, these objects can directly impact the propeller, causing damage such as broken or chipped blades. For example, in the waters near busy ports, cargo debris or maintenance waste often floats in the water. Without protective nets, the propeller can easily collide with these objects, leading to propeller damage. Propeller repairs are costly, and the repair process requires the ship to stop, resulting in significant economic losses for shipping operations.

[0005] Therefore, it is necessary to solve this problem. Utility Model Content

[0006] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. Therefore, one objective of the present invention is to provide an electric marine propulsion system that enables both efficient propeller operation and propeller protection.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An electric ship propulsion device, comprising:

[0008] Host;

[0009] A transmission assembly is located at the lower end of the main unit, and the output end of the main unit is connected to the input end of the transmission assembly.

[0010] A propeller is located at the lower end of the transmission assembly, and the output end of the transmission assembly is connected to the propeller. The main unit drives the propeller to rotate through the transmission assembly.

[0011] A protective component, wherein the upper end of the protective component is located on one side of the main unit, the middle part of the protective component is movably connected to the transmission component, and the lower end of the protective component is located on one side of the propeller, so that the protective component protects the propeller;

[0012] A fixing component, one end of which is rotatably connected to the upper end of the transmission component, and the other end of which is detachably connected to the hull.

[0013] The beneficial effects of this utility model are: the fixed components enable the propeller to maintain efficient operation in deep water areas or areas without aquatic plants or debris; and the propeller can be protected in shallow water areas or areas with aquatic plants or debris to prevent damage to the propeller.

[0014] Based on the above technical solution, the present invention can be further improved as follows.

[0015] Furthermore, the fixing component includes:

[0016] A rotating shaft sleeve, which is fitted onto the upper end of the transmission assembly;

[0017] The outer clamp plate has its upper end rotatably connected to the rotating shaft sleeve, and its end away from the transmission assembly is detachably connected to the hull.

[0018] An inner clamping plate is held in the middle of the transmission assembly, and the lower end of the outer clamping plate is rotatably connected to the inner clamping plate.

[0019] The beneficial effects of adopting the above-mentioned further solution are that the fixing assembly consisting of the shaft sleeve, outer clamping plate and inner clamping plate can make the propeller stable on the ship and also facilitate the steering of the propeller.

[0020] Furthermore, the fixing component also includes:

[0021] A clamping pin is threaded to the upper end of the outer clamping plate, and the clamping pin can clamp the end of the hull held by the outer clamping plate.

[0022] A fastening device, the end of which is connected to the clamping pin, and the fastening device can drive the clamping pin to rotate.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the combination of clamping pin and fastening device makes the connection between the outer clamp plate and the ship more secure, thus improving stability.

[0024] Furthermore, it also includes:

[0025] The handle is fixedly connected to the main unit via a connecting rod, and the handle is positioned above the fixing assembly.

[0026] The advantages of adopting the above-mentioned further solution are: using the handle to control the thruster for steering, and the control buttons arranged on the handle to facilitate the adjustment of the thruster.

[0027] Furthermore, it also includes:

[0028] A windshield is detachably mounted on the handle, and a heating element is fixedly installed inside the windshield.

[0029] The beneficial effects of adopting the above-mentioned further solutions are: the windshield can improve driver comfort and enhance driving safety.

[0030] Furthermore, the protective component includes:

[0031] A protective net is located on one side of the propeller;

[0032] A control frame, which is arranged in a U-shape around the outer periphery of the host;

[0033] A connecting rod, the upper end of which is fixedly connected to the lower end of the control frame, the lower end of which is fixedly connected to the protective net, and the middle part of which is movably connected to the transmission assembly.

[0034] The beneficial effects of adopting the above-mentioned further solutions are: the protective assembly consisting of the protective net, control frame and connecting rod has a simple structure, is easy to operate, and can flexibly protect the propeller.

[0035] Furthermore, the transmission assembly also includes:

[0036] A collar is fixedly connected to the middle of the transmission assembly, and the collar is fitted onto the connecting rod to limit the vertical movement of the connecting rod.

[0037] The beneficial effects of adopting the above-mentioned further solution are: by using a collar fitted on the transmission component and the connecting rod, the connecting rod can move vertically along the limit of the transmission component, and the connecting rod can also be made more stable.

[0038] Furthermore, the transmission assembly also includes:

[0039] A limiting block is fixedly placed in the middle of the transmission assembly and is located below the collar; a vertically arranged limiting groove is provided on the connecting rod, and the limiting block is located in the limiting groove. When the connecting rod moves vertically, the limiting block moves vertically and is limited within the limiting groove.

[0040] The beneficial effects of adopting the above-mentioned further solution are: the limiting groove can limit the movement of the limiting block, thereby limiting the vertical movement of the connecting rod, preventing the connecting rod from moving off-center, and extending the service life of the protective component.

[0041] Furthermore, a first clip and a second clip are provided in the limiting groove. The first clip, with its opening facing downwards, is fixedly placed at the top of the limiting groove, and the second clip, with its opening facing upwards, is fixedly placed at the bottom of the limiting groove.

[0042] The beneficial effects of adopting the above-mentioned further solution are: the first and second clips can be used to fix the limiting block, making the protective component more stable after it is moved into place, and also making it easier for the driver to perceive the position of the protective component. Attached Figure Description

[0043] Figure 1 This is a side view of the structure of an electric ship propulsion device according to the present invention;

[0044] Figure 2 This is a front view of an electric ship propulsion device according to the present invention;

[0045] Figure 3 This is a front view of the fixing component of this utility model.

[0046] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0047] 1. Host computer;

[0048] 2. Transmission assembly, 201. Collar, 202. Limit block;

[0049] 3. Propeller;

[0050] 4. Protective components: 401. Protective netting; 402. Control frame; 403. Connecting rod.

[0051] 4031, Limiting groove;

[0052] 5. Fixing components, 501. Rotary bushing, 502. Outer clamping plate, 503. Inner clamping plate, 504. Clamping pin, 505. Fastening device;

[0053] 6. Handle, 7. Windshield. Detailed Implementation

[0054] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0055] like Figures 1 to 3 As shown, an electric ship propulsion system includes:

[0056] Host 1;

[0057] Transmission component 2, which is located at the lower end of the host 1, and the output end of the host 1 is connected to the input end of the transmission component 2;

[0058] The propeller 3 is located at the lower end of the transmission assembly 2, and the output end of the transmission assembly 2 is connected to the propeller 3. The host 1 drives the propeller 3 to rotate through the transmission assembly 2.

[0059] The upper end of the protective component 4 is located on one side of the main unit 1, the middle part of the protective component 4 is movably connected to the transmission component 2, and the lower end of the protective component 4 is located on one side of the propeller 3, so that the protective component 4 protects the propeller 3.

[0060] The fixing component 5 has one end rotatably connected to the upper end of the transmission component 2, and the other end detachably connected to the hull.

[0061] In this specific application, the propulsion machine is fixed to the ship using the fixing component 5. The output end of the main engine 1 drives the propeller 3 to rotate through the transmission component 2, and the propeller 3 propels the ship during rotation. When the ship is propelled to a deep water area or an area without weeds or debris, the protective component 4 is pulled. After the protective component 4 moves upward along the transmission component 2 into place, the lower end of the protective component 4 deviates from the propeller 3, reducing the impact on the operating efficiency of the propeller 3 and allowing the propeller 3 to maintain efficient operation. When the ship is propelled to a shallow water area or an area with weeds or debris, the protective component 4 is pressed down. After the protective component 4 moves downward along the transmission component 2 into place, the lower end of the protective component 4 protects the propeller 3, reducing the interference of weeds and debris on the propeller 3 and preventing damage to the propeller 3.

[0062] In the above embodiments, the fixing component 5 includes:

[0063] A rotating shaft sleeve 501 is fitted onto the upper end of the transmission assembly 2;

[0064] The outer clamping plate 502 is rotatably connected to the rotating shaft sleeve 501 at its upper end, and the end of the outer clamping plate 502 away from the transmission assembly 2 is detachably connected to the hull.

[0065] The inner clamping plate 503 is clamped in the middle of the transmission assembly 2, and the lower end of the outer clamping plate 502 is rotatably connected to the inner clamping plate 503.

[0066] In practical applications, the upper end of the outer clamping plate 502 is rotatably connected to the transmission assembly 2 via the rotating shaft sleeve 501, and the lower end of the outer clamping plate 502 is rotatably connected to the transmission assembly 2 via the inner clamping plate 503. The end of the outer clamping plate 502 away from the transmission assembly 2 is clamped on the ship, so that the propeller is clamped on the ship and can be effectively rotated, making it convenient to steer the propeller.

[0067] The fixing assembly 5, consisting of the rotating shaft sleeve 501, the outer clamping plate 502, and the inner clamping plate 503, enables the propeller to be firmly fixed to the ship and also facilitates the steering of the propeller.

[0068] In the above embodiments, the fixing component 5 further includes:

[0069] A clamping pin 504 is threadedly connected to the upper end of the outer clamping plate 502, and the clamping pin 504 can clamp the end of the hull held by the outer clamping plate 502.

[0070] Fastening device 505, the end of which is connected to clamping pin 504, and the fastening device 505 can drive the clamping pin 504 to rotate.

[0071] In practical applications, when the outer clamping plate 502 is clamping the end of the ship, the fastening device 505 is rotated. During the rotation of the fastening device 505, the clamping pin 504 is driven to rotate. The clamping pin 504 is threadedly connected to the outer clamping plate 502. During the rotation of the clamping pin 504, the end of the ship is continuously pressed, making the connection between the outer clamping plate 502 and the ship more stable and improving stability.

[0072] The above embodiments also include:

[0073] Handle 6 is fixedly connected to the main unit 1 via connecting rod 403, and is positioned above the fixing component 5.

[0074] In practical applications, the handle 6 is used to control the thruster for steering, and control buttons are arranged on the handle 6 for easy adjustment of the thruster.

[0075] The above embodiments also include:

[0076] A windshield 7 is detachably mounted on the handle 6, and a heating element is fixedly installed inside the windshield 7.

[0077] In practical applications, the windshield 7 is used to block wind and water at the handle 6. Especially in low temperatures, strong winds can easily form on the ship, which can greatly affect the driver's hands and thus affect the ship's operation. The windshield 7 can improve the driver's comfort and enhance driving safety.

[0078] In the above embodiments, the protective component 4 includes:

[0079] A protective net 401 is located on one side of the propeller 3;

[0080] A control frame 402 is arranged in a U-shape around the outer periphery of the host unit 1;

[0081] A connecting rod 403 is provided, the upper end of which is fixedly connected to the lower end of the control frame 402, the lower end of which is fixedly connected to the protective net 401, and the middle part of which is movably connected to the transmission assembly 2.

[0082] In practical applications, by pulling up the control frame 402, the control frame 402 drives the protective net 401 away from the propeller 3 via the connecting rod 403; alternatively, by pressing down the control frame 402, the control frame 402 drives the protective net 401 closer to the propeller 3 via the connecting rod 403, thus protecting the propeller 3. The protective assembly 4, consisting of the protective net 401, the control frame 402, and the connecting rod 403, has a simple structure, is easy to operate, and can flexibly protect the propeller 3.

[0083] In the above embodiments, the transmission assembly 2 further includes:

[0084] A collar 201 is fixedly connected to the middle part of the transmission assembly 2. The collar 201 is fitted onto the connecting rod 403 so that the connecting rod 403 can move vertically in a limited position.

[0085] In practical applications, the collar 201 is fitted onto the transmission component 2 and the connecting rod 403, allowing the connecting rod 403 to move vertically along the limit of the transmission component 2, and also making the connecting rod 403 more stable.

[0086] In the above embodiments, the transmission assembly 2 further includes:

[0087] A limiting block 202 is fixedly placed in the middle of the transmission assembly 2, and the limiting block 202 is located below the collar 201; a vertically arranged limiting groove 4031 is provided on the connecting rod 403, and the limiting block 202 is located in the limiting groove 4031. When the connecting rod 403 moves vertically, the limiting block 202 moves vertically and is limited within the limiting groove 4031.

[0088] In practical applications, when the connecting rod 403 moves, the limiting block 202 moves within the limiting groove 4031. The limiting groove 4031 can limit the movement of the limiting block 202, thereby limiting the vertical movement of the connecting rod 403, preventing the connecting rod 403 from moving off-center, and extending the service life of the protective component 4.

[0089] In the above embodiment, a first clip and a second clip are provided in the limiting groove 4031. The first clip is fixedly placed at the top of the limiting groove 4031 with its opening facing downward, and the second clip is fixedly placed at the bottom of the limiting groove 4031 with its opening facing upward.

[0090] In practical application, when the limiting block 202 moves within the limiting groove 4031, when the limiting block 202 moves upward into position, it will be locked in the first clip; when the limiting block 202 moves downward into position, it will be locked in the second clip. The first and second clips are used to fix the limiting block 202, making the protective component 4 more stable after it moves into position, and also making it easier for the driver to perceive the position of the protective component 4.

[0091] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric ship propulsion system, characterized in that, include: Host (1); A transmission assembly (2) is placed at the lower end of the host (1), and the output end of the host (1) is connected to the input end of the transmission assembly (2). The propeller (3) is located at the lower end of the transmission assembly (2), and the output end of the transmission assembly (2) is connected to the propeller (3). The host (1) drives the propeller (3) to rotate through the transmission assembly (2). The upper end of the protective component (4) is located on one side of the host (1), the middle part of the protective component (4) is movably connected to the transmission component (2), and the lower end of the protective component (4) is located on one side of the propeller (3) so that the protective component (4) protects the propeller (3). The fixing component (5) has one end rotatably connected to the upper end of the transmission component (2) and the other end detachably connected to the hull.

2. The electric ship propulsion system according to claim 1, characterized in that, The fixing component (5) includes: A rotating shaft sleeve (501) is fitted onto the upper end of the transmission assembly (2); The outer clamping plate (502) is rotatably connected to the rotating bushing (501) at its upper end, and the end of the outer clamping plate (502) away from the transmission assembly (2) is detachably connected to the hull. The inner clamping plate (503) is clamped in the middle of the transmission assembly (2), and the lower end of the outer clamping plate (502) is rotatably connected to the inner clamping plate (503).

3. The electric ship propulsion system according to claim 1, characterized in that, The fixing component (5) also includes: A clamping pin (504) is threaded to the upper end of the outer clamping plate (502), and the clamping pin (504) can clamp the end of the hull held by the outer clamping plate (502). A fastening device (505) is provided, the end of which is connected to the clamping pin (504), and the fastening device (505) can drive the clamping pin (504) to rotate.

4. The electric ship propulsion system according to claim 1, characterized in that, Also includes: The handle (6) is fixedly connected to the main unit (1) via a connecting rod (403), and the handle (6) is positioned above the fixing component (5).

5. The electric ship propulsion system according to claim 4, characterized in that, Also includes: A windshield (7) is detachably mounted on the handle (6), and a heating element is fixedly installed inside the windshield (7).

6. The electric marine propulsion system according to any one of claims 1 to 5, characterized in that, The protective component (4) includes: A protective net (401) is located on one side of the propeller (3); A control frame (402) is arranged in a U-shape on the outer periphery of the host (1); The upper end of the connecting rod (403) is fixedly connected to the lower end of the control frame (402), the lower end of the connecting rod (403) is fixedly connected to the protective net (401), and the middle part of the connecting rod (403) is movably connected to the transmission assembly (2).

7. The electric ship propulsion system according to claim 6, characterized in that, The transmission assembly (2) also includes: A collar (201) is fixedly connected to the middle of the transmission assembly (2). The collar (201) is fitted onto the connecting rod (403) so that the connecting rod (403) can move vertically to a limited position.

8. The electric ship propulsion system according to claim 7, characterized in that, The transmission assembly (2) also includes: A limiting block (202) is fixedly placed in the middle of the transmission assembly (2) and is located below the collar (201). A vertically arranged limiting groove (4031) is provided on the connecting rod (403), and the limiting block (202) is located in the limiting groove (4031). When the connecting rod (403) moves vertically, the limiting block (202) moves vertically and is limited within the limiting groove (4031).

9. The electric ship propulsion system according to claim 8, characterized in that, The limiting groove (4031) is provided with a first clip and a second clip. The first clip is fixedly placed at the top of the limiting groove (4031) with its opening facing downward, and the second clip is fixedly placed at the bottom of the limiting groove (4031) with its opening facing upward.