Anti-winding rudder shaft for a ship

Abstract

The utility model discloses a kind of anti-winding ship rudder shafts, including connecting piece, connecting piece side is provided with tail shaft, tail shaft side is fixedly connected with screw part, electric slide rail is fixedly installed in tail shaft inside, slide block is set in electric slide rail outside, slide block side is fixedly connected with limit plate, limit plate one end is fixedly connected with moving part, cleaning plate is set in moving part two sides, driving block and cooperation block are set in tail shaft outside, cooperation block and hinged plate one end hinged cooperation, hinged plate other end is equipped with cutting knife.The utility model connects multiple driving blocks by connecting ring, moves two sides cutting knife by driving block and cooperation block synchronous push, cutting rubbish by cutting knife simultaneously push open and clean rubbish such as plastic bag, water algae that easily adhere, utilize slide block movement to drive moving part cooperation cleaning plate to clean tail shaft outside, utilize the reciprocating movement of moving part and cleaning plate, effectively expand the cleaning area of tail shaft surface, so that tail shaft outside anti-winding is more sufficient.

Description

Technical Field

[0001] This utility model relates to the field of rudder shaft technology, specifically to an anti-entanglement ship rudder shaft. Background Technology

[0002] The stern shaft, also known as the tail shaft, is the last section of the shaft system. Its bow flange is connected to the intermediate shaft flange with tight-fitting bolts; the stern end is conical and used to mount the propeller. The stern shaft is forged from high-quality carbon steel. Because the stern shaft is used in water, foreign objects (such as fishing nets, ropes, plastic bags, seaweed, etc.) can easily become entangled on the outer side of the ship's rudder shaft (i.e., the rudder blade, rudder stock, or rudder pin area). Therefore, preventing the stern shaft from becoming entangled with debris is crucial for ensuring the ship's maneuverability and navigational safety.

[0003] According to Chinese announcement number CN220164158U, an anti-entanglement stern shaft for ships is disclosed, including a connector and a cutting device. The side wall of the connector is fixedly connected to the shaft body. The cutting device drives the cutter to rotate through the turntable, thereby cutting and separating the object entangled on the outside of the stern shaft. This solves the problem that the stern shaft may become entangled and hinder its use during use.

[0004] The above solution only uses a horizontally rotating cutter located in the middle of the tail shaft for cutting. Its cutting range is limited, which greatly limits the cleaning of entangled materials (such as plastic bag attachments). It also cannot clean the surface of the tail shaft. Impurities attached to the outside of the tail shaft will affect the stability of the tail shaft rotation and may even generate noise. Utility Model Content

[0005] The purpose of this invention is to provide an anti-entanglement ship rudder shaft to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-entanglement ship rudder shaft, comprising a connector, a tail shaft disposed on one side of the connector, a tail shaft disposed on one side of the tail shaft and fixedly connected to a propeller, an electric slide rail fixedly installed inside the tail shaft, a slider disposed on the outer side of the electric slide rail, a slider disposed on the side of the slider and a limiting plate fixedly connected, one end of the limiting plate and a moving part fixedly connected, cleaning plates disposed on both sides of the moving part, a drive block and a mating block disposed on the outer side of the tail shaft, the mating block being hinged to one end of a hinge plate, and a cutter being mounted on the other end of the hinge plate.

[0007] Preferably, symmetrical limiting grooves are provided on the outer side of the tail shaft, and the tail shaft slides with the outer side of the limiting plate through the limiting grooves. The limiting plates are symmetrically distributed on both sides of the slider, and the bottom of the slider slides with the outer side of the electric slide rail through the sliding groove.

[0008] Preferably, one end of the limiting plate extends to the outside of the tail shaft and is fixedly connected to the moving part. The moving part is an arc-shaped plate, which slides with the outside of the tail shaft. Both ends of the moving part are fixedly connected to the cleaning plate, and the cleaning plate is provided with an inclined surface.

[0009] Preferably, the outer side of the cleaning plate is fixedly connected to the cutter, and the cutter is evenly distributed in a circumferential array on the outer side of the moving part.

[0010] Preferably, a guide rail is provided on the outer side of the connector, and the guide rail is slidably engaged with the drive block and the mating block inside. The drive block and the mating block are respectively hinged to one end of the hinge plate, and the other end of the hinge plate is movably engaged with the cutter. The drive block and the mating block are symmetrically distributed on both sides of the cutter.

[0011] Preferably, an electric push rod is fixedly installed on the outer side of the tail shaft, the output end of the electric push rod is fixedly connected to the connecting ring, and the connecting ring is fixedly connected to the side of multiple mating blocks.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model connects multiple drive blocks through a connecting ring. The drive blocks move within the guide rail via an electric push rod, causing the hinge plate to move synchronously. The mating blocks on both sides push the cutters on both sides to move synchronously. The cutters cut the debris wrapped around the outside of the tail shaft and push away and clean up easily attached debris such as plastic bags and algae, thus preventing the tail shaft from becoming entangled, which could lead to unstable rotation or even noise.

[0014] 2. This utility model also uses an electric slide rail to move the slider inside the tail shaft, which drives the slider to move synchronously. This allows the moving part to work with the cleaning plate to clean the outside of the tail shaft, preventing plastic bags from adhering to the outside of the tail shaft. By using the reciprocating movement of the moving part and the cleaning plate, the cleaning area on the surface of the tail shaft is effectively expanded, making the anti-winding on the outside of the tail shaft more thorough. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the internal structure of the tail shaft of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the hinge plate and the cutter of this utility model;

[0018] Figure 4 This is a schematic diagram of the slider and moving part of this utility model.

[0019] In the diagram: 1. Connector; 2. Tailshaft; 3. Propeller; 4. Electric slide rail; 5. Slider; 6. Limiting plate; 7. Moving part; 8. Cleaning plate; 9. Cutter; 10. Limiting groove; 11. Guide rail; 12. Drive block; 13. Mating block; 14. Hinge plate; 15. Cutter; 16. Connecting ring; 17. Electric push rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: an anti-entanglement ship rudder shaft, including a connector 1. One side of the connector 1 is connected and fixed to the tail shaft 2 via a flange, and the other side of the tail shaft 2 is connected and fixed to the propeller part 3 via a flange. An electric slide rail 4 is fixedly installed inside the tail shaft 2. The electric slide rail 4 is an underwater slide rail, that is, it adopts multi-layer sealing and anti-corrosion materials, and can work for a long time at a depth of 30 meters with IP68 protection. The outer side of the electric slide rail 4 slides in cooperation with the groove at the bottom of the slider 5.

[0022] The slider 5 is fixedly connected to the limiting plate 6 on both sides. One end of the limiting plate 6 extends to the outside of the tail shaft 2 and is fixedly connected to the moving part 7. The moving part 7 is an arc-shaped plate. There are two moving parts 7, which are symmetrically distributed on both sides of the slider 5. A clearance groove is provided between the moving parts 7 to avoid motion interference between the drive block 12 and the mating block 13. The moving part 7 slides with the outside of the tail shaft 2. Both ends of the moving part 7 are fixedly connected to the cleaning plate 8. The cleaning plate 8 is provided with a slope. A cleaning ring is provided on the inner wall of the moving part 7. The slider 5 is moved back and forth by the electric slide rail 4, which drives the moving part 7 to move back and forth. The inner wall cleaning ring and the cleaning plates 8 on both sides can scrape and clean the outside of the tail shaft 2 to prevent debris from adhering to the outer wall of the tail shaft 2. The outside of the cleaning plate 8 is fixedly connected to the cutter 9. The cutter 9 is evenly distributed in a circumferential array on the outside of the moving part 7. The cutter 9 can cut the attached material during the movement of the moving part 7. At the same time, the slope of the cleaning plate 8 is used to push the debris to the outside to move it, so as to prevent the cut debris from getting tangled on the outside of the tail shaft 2 again.

[0023] Symmetrical limiting grooves 10 are provided on the outer side of the tail shaft 2. The tail shaft 2 slides with the outer side of the limiting plate 6 through the limiting grooves 10. The limiting grooves 10 limit the movement of the slider 5, ensuring that the moving parts 7 on both sides move synchronously and parallelly, further enhancing the cleaning effect on the outer surface of the tail shaft 2.

[0024] A guide rail 11 is provided on the outer side of the connector 1. The guide rail 11 is slidably engaged with the drive block 12 and the mating block 13. The drive block 12 and the mating block 13 are respectively hinged to one end of the hinge plate 14 through a hinge shaft. The other end of the hinge plate 14 is connected to the pin of the cutter 15. The pin is slidably engaged with the inner wall of the cutter 15 to ensure that when the drive blocks 12 and the mating blocks 13 on both sides move synchronously, the pin at the top of the hinge plate 14 moves synchronously inside the cutter 15, thus avoiding interference during the movement of the cutter 15.

[0025] A drive block 12 and a mating block 13 are provided on the outer side of the tail shaft 2. The mating block 13 is hinged to one end of the hinge plate 14, and a cutter 15 is installed on the other end of the hinge plate 14.

[0026] The drive block 12 and mating block 13 are symmetrically distributed on both sides of the cutter 15. An electric push rod 17 is fixedly installed on the outside of the tail shaft 2. The output end of the electric push rod 17 is fixedly connected to the connecting ring 16. The connecting ring 16 is fixedly connected to the side of multiple mating blocks 13.

[0027] Working Principle: During use, the connecting part 1, tail shaft 2, and propeller 3 are connected and fixed by a flange. When the propeller 3 is operating, debris such as plastic bags, algae, and ropes in the water are easily wrapped around the outside of the tail shaft 2 by the water flow, thus affecting the normal use of the tail shaft 2. The electric push rod 17 pushes the connecting ring 16 to move on the outside of the tail shaft 2, and simultaneously pushes the drive block 12 to slide inside the guide rail 11. The drive block 12 pushes the hinge plate 14. With the cooperation of the mating block 13 on the other side, the drive block 12 and the mating block 13 move towards each other and push the connecting ring 16 outward. The connecting ring 16 can cut the ropes and other debris wrapped around the outside of the tail shaft 2 and push the debris away from the surface of the tail shaft 2.

[0028] The electric slide rail 4 is used to make the slider 5 slide, so that the limiting plate 6 moves within the limiting groove 10. This allows the moving part 7 to drive the cleaning plate 8 to clean the debris attached to the surface of the tail shaft 2, preventing dirt, aquatic animals, etc. from adhering to the tail shaft 2 after long-term use, and ensuring the cleaning effect on the outside of the tail shaft 2.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-entanglement ship rudder shaft, comprising a connector (1), characterized in that: A tail shaft (2) is provided on one side of the connector (1). The tail shaft (2) is connected and fixed to the propeller part (3) on one side. An electric slide rail (4) is fixedly installed inside the tail shaft (2). A slider (5) is provided on the outside of the electric slide rail (4). The side of the slider (5) is fixedly connected to the limiting plate (6). One end of the limiting plate (6) is fixedly connected to the moving part (7). Cleaning plates (8) are provided on both sides of the moving part (7). A drive block (12) and a mating block (13) are provided on the outside of the tail shaft (2). The mating block (13) is hinged to one end of the hinge plate (14). A cutter (15) is installed on the other end of the hinge plate (14).

2. The anti-entanglement ship rudder shaft according to claim 1, characterized in that: The tail shaft (2) has symmetrical limiting grooves (10) on its outer side. The tail shaft (2) slides with the limiting plate (6) on its outer side through the limiting grooves (10). The limiting plate (6) is symmetrically distributed on both sides of the slider (5). The bottom of the slider (5) slides with the electric slide rail (4) on its outer side through the sliding groove.

3. The anti-entanglement ship rudder shaft according to claim 2, characterized in that: One end of the limiting plate (6) extends to the outside of the tail shaft (2) and is fixedly connected to the moving part (7). The moving part (7) is an arc-shaped plate. The moving part (7) slides with the outside of the tail shaft (2). Both ends of the moving part (7) are fixedly connected to the cleaning plate (8). The cleaning plate (8) is provided with an inclined surface.

4. The anti-entanglement ship rudder shaft according to claim 3, characterized in that: The cleaning plate (8) is fixedly connected to the cutter (9) on the outside, and the cutter (9) is evenly distributed in a circumferential array on the outside of the moving part (7).

5. The anti-entanglement ship rudder shaft according to claim 1, characterized in that: The connector (1) has a guide rail (11) on its outer side. The guide rail (11) is slidably engaged with the drive block (12) and the mating block (13). The drive block (12) and the mating block (13) are respectively hinged to one end of the hinge plate (14). The other end of the hinge plate (14) is movably engaged with the cutter (15). The drive block (12) and the mating block (13) are symmetrically distributed on both sides of the cutter (15).

6. The anti-entanglement ship rudder shaft according to claim 1, characterized in that: An electric push rod (17) is fixedly installed on the outside of the tail shaft (2). The output end of the electric push rod (17) is fixedly connected to the connecting ring (16). The connecting ring (16) is fixedly connected to the side of multiple mating blocks (13).

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