Anti-winding structure for a marine propeller

Abstract

This utility model belongs to the field of marine propulsion equipment, and in particular, it is an anti-entanglement structure for a marine propeller. Addressing the problem that existing propeller areas are often entangled by weeds, fishing nets, and other debris, leading to reduced thrust or equipment damage, current technologies typically use protective covers to isolate the debris. However, large debris can still break through the cover and easily get stuck in the gaps between rotating components, increasing the burden on the equipment. The proposed solution includes a propeller body, which is equipped with a shell, a retaining ring, a propeller, and a connecting column. The propeller is fixedly mounted at one end of the connecting column, and the connecting column is fixedly connected to a rotating rod via gears. A cutting component can promptly cut off debris entangled on one side of the propeller, reducing the impact of debris entanglement on propeller efficiency and even damage. Simultaneously, a straight rod and a specially shaped guide plate successfully guide water flow, reducing the entry of large debris into the propeller area, further improving the propeller's anti-entanglement performance.

Description

Technical Field

[0001] This utility model relates to the field of ship propulsion equipment technology, and in particular to an anti-entanglement structure for a ship propulsion device. Background Technology

[0002] Marine propulsion is the core component of a ship's power system. Its function is to convert the power generated by the engine into thrust that propels the ship forward. This includes propeller propulsion, which works by using rotating blades to generate a reaction force on the water, thus propelling the ship forward. It is highly efficient, simple in structure, and has low maintenance costs, making it the most widely used type of propulsion.

[0003] During the operation of ship propulsion, the propeller area is often entangled with debris such as aquatic plants and fishing nets, which can lead to a decrease in thrust or damage to the equipment. Existing technologies usually use protective covers to isolate debris, but large debris may still break through the cover and easily get stuck in the gaps between rotating parts, increasing the burden on the equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the propeller area is often entangled by weeds, fishing nets, and other debris, leading to reduced thrust or equipment damage. Existing technologies typically use protective covers to isolate debris, but large debris can still break through the cover and easily get stuck in the gaps between rotating parts, increasing the burden on the equipment. Therefore, this invention proposes an anti-entanglement structure for ship propellers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An anti-entanglement structure for a ship propeller includes a propeller body, on which a housing, a retaining ring, a propeller, and a connecting column are disposed. The propeller is fixedly disposed at one end of the connecting column, and the connecting column is fixedly connected to a rotating rod via gears. The housing is disposed on the outside of the propeller body, and the retaining ring is disposed on the propeller and fixedly connected to the housing via a connecting frame. A cutting component for untangling debris is disposed on one side of the propeller of the propeller body, and a drainage component for reducing the entry of large debris into the propeller is disposed on one side of the housing.

[0006] In one possible design, the cutting assembly includes three blades (first), three blades (second), and a connecting ring. The three blades (first) are all fixedly disposed on the outside of the connecting post and located on one side of the same propeller. One end of the connecting ring is fixedly connected to one side of the housing and covers the outside of the connecting post. The three blades (second) are all fixedly disposed on the outside of the same connecting ring and are respectively attached to the three blades (first). The cutting edges of the three blades (first) and the three blades (second) fit together to facilitate cutting debris wrapped around one side of the propeller.

[0007] In one possible design, the flow-guiding assembly includes a straight rod and four flow-guiding plates. One end of the straight rod is fixedly connected to one side of the housing and is located in the same vertical direction as the propeller. The four flow-guiding plates are all fixedly arranged on the outside of the same straight rod. The shape of the four flow-guiding plates is set to be triangular to facilitate flow guidance, and one corner of each of the four flow-guiding plates is set to be arc-shaped.

[0008] In one possible design, one end of the straight rod is fixedly provided with a front end to reduce water resistance, and the front end is shaped as a smooth cone.

[0009] In one possible design, a circular ring is fixedly connected to one side of the retaining ring, and an intercepting rod for blocking debris is fixedly connected to the inner wall of the circular ring. The intercepting rod is shaped like a cross.

[0010] In one possible design, one side of the interceptor bar is configured as a pyramid shape to reduce water resistance.

[0011] In this application, when the propeller is running, the external equipment drives the rotating rod to start rotating, which drives the connecting column to rotate through gear transmission. Since the propeller is fixedly installed at one end of the connecting column, the propeller rotates accordingly, thereby generating a backward thrust to provide forward power for the ship.

[0012] During ship navigation, when debris approaches the propeller, the retaining ring will first block some of the debris to prevent it from directly wrapping around the propeller. If debris still bypasses the retaining ring and approaches the propeller, as the propeller rotates, the first blade fixed to the outside of the connecting post will also rotate. The second blade, which is fixed to the outside of the connecting ring and is in contact with the first blade, is in a relatively fixed position. The blades of the first and second blades work together to cut off the debris wrapped around the propeller and untangle it.

[0013] For large debris, the deflector assembly on one side of the outer shell comes into play. The straight rod is fixedly connected to the outer shell and is in the same vertical direction as the propeller. Four triangular deflector plates with one arc corner are fixed to the outside of the straight rod. When the ship is traveling in the water, the special shape of the deflector plates guides the water flow, making it difficult for large debris to enter the area where the propeller is located. At the same time, the smooth conical front end of the straight rod can reduce the resistance when the straight rod moves in the water.

[0014] In addition, the cross-shaped interceptor bar on the inner wall of the ring on one side of the baffle can block debris from approaching from the other side of the propeller, and the pyramidal design on one side of the interceptor bar can reduce the resistance it experiences in the water.

[0015] The beneficial effects of this utility model are as follows: In this invention, regarding anti-entanglement, the retaining ring directly blocks debris from approaching the propeller, and the cutting component can promptly cut off debris entangled on one side of the propeller, effectively solving the problem of reduced propeller efficiency or even damage caused by debris entanglement, ensuring the normal operation of the propeller, and extending its service life.

[0016] The design of the diversion component is very practical. Through the straight rod and the specially shaped diversion plate, it successfully guides the water flow, reduces the entry of large debris into the propeller area, reduces the possibility of debris entanglement from the source, and further improves the anti-entanglement performance of the propeller. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is an exploded view of the cutting structure of this utility model; Figure 3 This is a schematic diagram of the interceptor bar structure of this utility model; Figure 4 This is a schematic diagram of the drainage structure of this utility model.

[0018] In the diagram: 1. Thruster body; 2. Outer shell; 3. Retaining ring; 4. Propeller; 5. Connecting column; 6. Blade 1; 7. Blade 2; 8. Interception bar; 9. Drain plate; 10. Straight rod; 11. Front end; 12. Connecting ring; 13. Circular ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In one embodiment: Refer to Figures 1-4 An anti-entanglement structure includes a propeller body 1, on which a housing 2, a retaining ring 3, a propeller 4, and a connecting column 5 are provided. The propeller 4 is fixedly installed at one end of the connecting column 5. The connecting column 5 is securely connected to a rotating rod through gears. When the rotating rod rotates, it drives the connecting column 5 to rotate through gear transmission, thereby causing the propeller 4 to rotate and providing forward power for the ship. The housing 2 is located on the outside of the propeller body 1 and serves to protect the internal components. The retaining ring 3 covers the propeller 4 and is fixedly connected to the housing 2 through a connecting frame, which can prevent debris from directly entangled on the propeller 4.

[0021] On one side of the propeller 4 of the propeller body 1, a cutting assembly for untangling debris is provided. The cutting assembly includes three blades 6, three blades 7, and a connecting ring 12. The three blades 6 are fixed to the outside of the connecting post 5 and are all located on the same side of the propeller 4. One end of the connecting ring 12 is fixedly connected to one side of the outer shell 2 and covers the outside of the connecting post 5. The three blades 7 are fixed to the outside of the connecting ring 12 and are respectively attached to the three blades 6. The cutting edges of the blades 6 and 7 are matched. When debris is tangled on one side of the propeller 4, as the propeller 4 rotates, the blades 6 rotate with the propeller 4, and the blades 7 fixed to the outer shell 2 by the connecting ring 12 cooperate with each other to cut the debris, thereby untangling it.

[0022] A flow-guiding assembly is provided on one side of the outer casing 2 to reduce the entry of large debris into the propeller 4. The flow-guiding assembly includes a straight rod 10 and four flow-guiding plates 9. One end of the straight rod 10 is fixedly connected to one side of the outer casing 2 and is located in the same vertical direction as the propeller 4. The four flow-guiding plates 9 are all fixed to the outside of the same straight rod 10. Their shape is triangular to facilitate flow guidance, and one corner of each of the four flow-guiding plates 9 is set as an arc. When the ship is traveling in the water, the water flows through the straight rod 10 and the flow-guiding plates 9. The special shape of the flow-guiding plates 9 can guide the water flow, making it difficult for large debris to enter the area where the propeller 4 is located. One end of the straight rod 10 is fixed with a front end 11 to reduce water resistance. The front end 11 is shaped as a smooth cone, which can reduce the resistance when the straight rod 10 moves in the water.

[0023] This application can be used in the field of anti-winding of ship propulsion, or in other fields applicable to this application.

[0024] In another embodiment: Reference Figures 1-4 An anti-entanglement structure for a ship propulsion system, comprising: A ring 13 is fixedly connected to one side of the baffle ring 3. An intercepting rod 8 for blocking debris is fixedly connected to the inner wall of the ring 13. The intercepting rod 8 is cross-shaped and can block debris from approaching the propeller 4 from the other side. One side of the intercepting rod 8 is pyramidal to reduce the resistance encountered by the intercepting rod 8 in the water.

[0025] However, as is well known to those skilled in the art, the working principle and wiring method of the thruster body 1 are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0026] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations, but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An anti-entanglement structure for a ship propeller, characterized in that, The device includes a propeller body (1), on which a housing (2), a retaining ring (3), a propeller (4), and a connecting column (5) are provided. The propeller (4) is fixedly installed at one end of the connecting column (5), and the connecting column (5) is fixedly connected to the rotating rod by a gear. The housing (2) is located on the outside of the propeller body (1). The retaining ring (3) covers the propeller (4) and is fixedly connected to the housing (2) by a connecting frame. A cutting component for untangling debris is provided on one side of the propeller (4) of the propeller body (1), and a drainage component for reducing large debris from entering the propeller (4) is provided on one side of the housing (2).

2. The anti-winding structure for a ship propeller according to claim 1, characterized in that, The cutting assembly includes three blades (6), three blades (7), and a connecting ring (12). The three blades (6) are fixedly disposed on the outside of the connecting post (5) and are all located on one side of the same propeller (4). One end of the connecting ring (12) is fixedly connected to one side of the outer shell (2) and covers the outside of the connecting post (5). The three blades (7) are fixedly disposed on the outside of the same connecting ring (12) and are respectively attached to the three blades (6). The cutting edges of the three blades (6) and the three blades (7) fit together to cut off the debris wrapped around one side of the propeller (4).

3. The anti-winding structure for a ship propeller according to claim 1, characterized in that, The flow-guiding assembly includes a straight rod (10) and four flow-guiding plates (9). One end of the straight rod (10) is fixedly connected to one side of the outer shell (2) and is located in the same vertical direction as the propeller (4). The four flow-guiding plates (9) are all fixedly arranged on the outside of the same straight rod (10). The shape of the four flow-guiding plates (9) is set to be triangular to facilitate flow guidance. One corner of the four flow-guiding plates (9) is set to be arc-shaped.

4. The anti-winding structure for a ship propeller according to claim 3, characterized in that, One end of the straight rod (10) is fixedly provided with a front end (11) to reduce water resistance, and the front end (11) is shaped as a smooth cone.

5. The anti-winding structure for a ship propeller according to claim 1, characterized in that, A ring (13) is fixedly connected to one side of the retaining ring (3), and an intercepting rod (8) for blocking debris is fixedly connected to the inner wall of the ring (13). The intercepting rod (8) is shaped like a cross.

6. The anti-winding structure for a ship propeller according to claim 5, characterized in that, One side of the interceptor bar (8) is configured as a pyramid shape to reduce water resistance.

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