Marine precision propeller

Abstract

The marine precise propeller comprises a propeller head, four sets of propeller blades are fixedly connected to the outer portion of the propeller head, a propeller transmission shaft is transversely connected to one side of the propeller head in an inserted mode, and a medicine adding assembly for preventing barnacles from climbing is arranged on the other side of the propeller head. The marine precise propeller is provided with the sealing cover, the circular space ring, the cotton yarn bag, the capsaicin concentration block, the conducting pipe, the sealing ball and the elastic rope, when the marine precise propeller is used, the elastic rope retracts to pull back the sealing ball under the condition that no centrifugal force exists when a ship is berthed at a port, the pipe opening of the conducting pipe is not blocked, seawater enters the sealing cover along the conducting pipe, and the sealing cover is sealed. When the barnacle adhesion reducing device is used, the barnacle adhesion reducing device is in full contact with the cotton yarn bag in the circular space ring, capsaicin concentration blocks in the cotton yarn bag are in contact with seawater, the barnacle adhesion reducing function is achieved, and the problem that the barnacle adhesion reducing device does not have the barnacle adhesion reducing function is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding furnace carriers, in particular to a precision propeller for ships. Background Art

[0002] A propeller is a device that converts engine power into propulsion by rotating blades in air or water. It is widely used in aviation, shipbuilding, and other fields. Precision marine propellers are a common marine accessory, typically made of precision-machined metal.

[0003] Currently, most common marine precision propellers on the market are similar in structure, with the propeller head, blades, and drive shaft as the main components. One end of the drive shaft is connected to the engine, and drives the propeller head and blades to rotate at high speed, generating thrust underwater. However, there are some functional deficiencies in actual use, and there is room for improvement. For example, marine precision propellers are immersed in water all year round, especially for seagoing ships. When moored in the harbor, barnacle larvae easily adhere to the propeller blades, increasing the weight of the blades, causing additional energy consumption burden, and reducing the propeller's thrust. Cleaners need to manually flush them with high-pressure water guns regularly, which is costly and time-consuming, and does not have the function of reducing barnacle adhesion.

[0004] Now, a new type of marine precision propeller is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a precision propeller for a ship, so as to solve the problem in the above background technology that the propeller has no function of reducing barnacle adhesion.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a precision marine propeller, comprising a propeller head, four groups of propeller blades being fixedly connected to the outside of the propeller head, a propeller drive shaft being laterally inserted into one side of the propeller head, multiple groups of fixing bolts being inserted from right to left on the side of the propeller drive shaft near the propeller head, multiple groups of bolt grooves being arranged inside one side of the propeller head, and a dosing component for preventing barnacles from climbing being arranged on the other side of the propeller head.

[0007] The dosing component includes a sealing cover, which is threadedly connected to the other side of the propeller head. A circular spacer is fixedly connected to the middle position of one side of the interior of the sealing cover. A cotton yarn bag is horizontally placed inside the circular spacer, and a capsaicin concentrate block is arranged inside the cotton yarn bag. The outside of the circular spacer is fixedly connected to multiple groups of conducting tubes, and a sealing ball is arranged inside the conducting tube. An elastic rope is movably connected between one side of the sealing ball and the outside of the circular spacer.

[0008] Preferably, the threads inside the sealing cover match the threads outside the other side of the propeller head, and the vertical center lines of the propeller head, the sealing cover and the circular spacer coincide with each other.

[0009] Preferably, a plurality of groups of fine holes are evenly arranged inside the circular spacer, and the interiors of the circular spacer and the conducting tube are connected.

[0010] Preferably, the outer diameter of the sealing ball is smaller than the inner diameter of the conducting tube, and the outer diameter of the sealing ball is larger than the aperture of the outer port of the conducting tube.

[0011] Preferably, a reserved groove is provided on one side of the front end of the propeller head, an RFID chip is applied inside the reserved groove, and a waterproof cover is provided at the front end of the RFID chip.

[0012] Preferably, the rear end of the waterproof cover plate is connected to the inside of the reserved groove, and the curved surface of the front end of the waterproof cover plate is consistent with the curved surface of the front end of the propeller head.

[0013] Preferably, a sealing ring is glued to the outer ring of one side of the propeller head, a rubber coating is provided on one side inside the bolt groove, and the interior of the rubber coating is filled with waterproof glue.

[0014] Preferably, the rubber coating is elastic, and the internal thread of the bolt groove matches the external thread of the fixing bolt.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the precision propeller for a ship not only reduces the adhesion of barnacles, but also facilitates access to propeller-related information and waterproofs the bolt joints;

[0016] (1) By providing a sealing cover, a circular spacer, a cotton yarn bag, a capsaicin concentrate block, a conducting tube, a sealing ball and an elastic rope, when in use, one end of the propeller drive shaft is connected to the marine engine, driving the propeller head and the propeller blades to rotate at high speed, providing power for the ship's navigation. During the high-speed rotation of the propeller head, the sealing ball is displaced outward by inertia and blocked at the pipe mouth of the conducting tube. As the ship is moored at the port, in the absence of centrifugal force, the elastic rope retracts and pulls the sealing ball back, the pipe mouth of the conducting tube loses its seal, and seawater enters the sealing cover along the conducting tube and fully contacts the cotton yarn bag in the circular spacer. The capsaicin concentrate block in the cotton yarn bag contacts the seawater, and the irritant factors such as capsaicin diffuse outward through the seawater, so that the seawater near the propeller remains in an irritating state, reducing the approach of barnacle larvae and reducing the probability of their attachment, thereby achieving the function of reducing barnacle adhesion;

[0017] (2) By setting up a reserved slot, an RFID chip and a waterproof cover, when the ship is in use, it is necessary to raise the hull when inspecting the propeller. After the maintenance personnel have inspected the propeller, they will record the relevant maintenance information in the book. If the information of the two maintenance ports is not circulated, it will increase the difficulty of maintenance at the latter maintenance port. After the maintenance at the former maintenance port, the maintenance information will be recorded into the RFID chip through the reading and recording device. The subsequent maintenance ports can directly read and modify the information, which can reduce the barriers to information flow. The reserved slot and waterproof cover provide support for the installation, fixation and protection of the RFID chip, realizing the function of facilitating the access to propeller related information.

[0018] (3) By providing a sealing ring, rubber coating and waterproof glue, when in use, the head end of the propeller drive shaft is inserted into the interior of the propeller head and connected through the fixing bolts and bolt grooves. As the fixing bolts are driven into the bolt grooves, the end of the fixing bolts presses against the rubber coating to cause it to rupture under pressure, and the waterproof glue inside it overflows and fills the gap between the fixing bolts and the bolt grooves to prevent seawater from entering. The sealing ring further increases the sealing of the connection surface between the propeller drive shaft and the propeller head, thereby achieving the waterproof function of the bolt joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural diagram of the utility model;

[0020] Figure 2 This is an enlarged side sectional structural diagram of the sealing cover of the present invention;

[0021] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0022] Figure 4 This is a side structural diagram of the propeller head of the present invention;

[0023] Figure 5 This is a schematic diagram of an enlarged front cross-sectional structure of the bolt slot of the present invention.

[0024] In the figure: 1. Propeller head; 2. Propeller blade; 3. Sealing cover; 4. Circular spacer; 5. Cotton yarn bag; 6. Capsaicin concentrate block; 7. Conducting tube; 8. Sealing ball; 9. Elastic rope; 10. Reserved groove; 11. RFID chip; 12. Waterproof cover; 13. Fixing bolt; 14. Bolt slot; 15. Sealing ring; 16. Rubber coating; 17. Waterproof glue; 18. Propeller drive shaft. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1-5 A precision marine propeller includes a propeller head 1, four sets of propeller blades 2 are fixedly connected to the outside of the propeller head 1, a propeller drive shaft 18 is laterally inserted into one side of the propeller head 1, a plurality of sets of fixing bolts 13 are inserted from right to left on the side of the propeller drive shaft 18 near the propeller head 1, a plurality of sets of bolt grooves 14 are provided inside one side of the propeller head 1, and a dosing component for preventing barnacles from climbing is provided on the other side of the propeller head 1;

[0027] See also Figure 1-5 The marine precision propeller also includes a dosing assembly, which includes a sealing cover 3, which is threadedly connected to the other side of the propeller head 1. A circular spacer 4 is fixedly connected to the middle position of one side of the inner side of the sealing cover 3. A cotton yarn bag 5 is horizontally placed inside the circular spacer 4. A capsaicin concentrate block 6 is arranged inside the cotton yarn bag 5. Multiple groups of conducting tubes 7 are fixedly connected to the outside of the circular spacer 4. A sealing ball 8 is arranged inside the conducting tube 7. An elastic rope 9 is movably connected between one side of the sealing ball 8 and the outside of the circular spacer 4.

[0028] The threads inside the sealing cover 3 match the threads on the outside of the other side of the propeller head 1. The vertical centerlines of the propeller head 1, sealing cover 3, and circular spacer 4 coincide with each other. The interior of the circular spacer 4 is evenly provided with multiple groups of fine holes. The interiors of the circular spacer 4 and the conducting tube 7 are connected. The outer diameter of the sealing ball 8 is smaller than the inner diameter of the conducting tube 7, and the outer diameter of the sealing ball 8 is larger than the aperture of the outer end of the conducting tube 7. When moored, capsaicin can be spread in the waters near the propeller to reduce the approach of barnacle larvae.

[0029] Specifically, if Figure 1 and Figure 2 As shown, during the high-speed rotation of the propeller head 1, the sealing ball 8 is displaced outward by inertia and is blocked at the pipe opening of the conducting pipe 7. As the ship is anchored at the port, in the absence of centrifugal force, the elastic rope 9 retracts to pull the sealing ball 8 back, and the pipe opening of the conducting pipe 7 is unblocked. Seawater enters the sealing cover 3 along the conducting pipe 7 and fully contacts the cotton yarn bag 5 in the circular spacer 4. The capsaicin concentrate 6 in the cotton yarn bag 5 contacts the seawater, and irritating factors such as capsaicin diffuse outward through the seawater, so that the seawater near the propeller remains irritating, reducing the approach of barnacle larvae and the chance of their attachment.

[0030] Example 2: A reserved groove 10 is provided on one side of the front end of the propeller head 1. An RFID chip 11 is applied to the interior of the reserved groove 10. A waterproof cover plate 12 is provided at the front end of the RFID chip 11. The rear end of the waterproof cover plate 12 is connected to the interior of the reserved groove 10. The curved surface of the front end of the waterproof cover plate 12 is consistent with the curved surface of the front end of the propeller head 1, which facilitates the flow of maintenance information between different ports.

[0031] Specifically, if Figure 1 and Figure 3 As shown, the maintenance information is recorded into the RFID chip 11 through a reading and recording device, and subsequent maintenance ports can directly read and modify it, which can reduce the barriers to information flow. The reserved slot 10 and waterproof cover 12 provide support for the installation, fixation and protection of the RFID chip 11.

[0032] Example 3: A sealing ring 15 is glued to the outer ring of one side of the propeller head 1, and a rubber coating 16 is provided on one side of the inner portion of the bolt groove 14. The inner portion of the rubber coating 16 is filled with a waterproof glue 17. The rubber coating 16 is elastic. The inner thread of the bolt groove 14 matches the outer thread of the fixing bolt 13, thereby improving the waterproof performance of the connection position.

[0033] Specifically, if Figure 1 、 Figure 4 and Figure 5 As shown, as the fixing bolt 13 is driven into the bolt groove 14, the end of the fixing bolt 13 presses against the rubber coating 16 to cause it to rupture under pressure, and the waterproof glue 17 inside it overflows, filling the gap between the fixing bolt 13 and the bolt groove 14 to prevent seawater from entering. The sealing ring 15 further increases the sealing performance of the connection surface between the propeller drive shaft 18 and the propeller head 1.

[0034] Working principle: When the present invention is in use, first, one end of the propeller drive shaft 18 is docked with the marine engine, driving the propeller head 1 and the propeller blades 2 to rotate at high speed, providing power for the ship's navigation. During the high-speed rotation of the propeller head 1, the sealing ball 8 is displaced outward by inertia and blocked at the mouth of the conducting pipe 7. As the ship is moored at the port, in the absence of centrifugal force, the elastic rope 9 retracts to pull the sealing ball 8 back, and the mouth of the conducting pipe 7 loses its seal. Seawater enters the sealing cover 3 along the conducting pipe 7 and fully contacts the cotton yarn bag 5 in the circular spacer 4. The capsaicin concentrate block 6 in the cotton yarn bag 5 contacts the seawater, and irritating factors such as capsaicin diffuse outward through the seawater, so that the seawater near the propeller remains in an irritating state, reducing the approach of barnacle larvae and reducing the chance of their attachment. When inspecting the propeller, the ship needs to raise the hull. After the maintenance personnel inspect the propeller, they record the relevant maintenance information in the register. If the information of the two maintenance ports is not circulated, the maintenance of the latter port will be more difficult. After the maintenance of the previous maintenance port, the maintenance information is recorded in the RFID chip 11 through the reading and recording device. The subsequent maintenance ports can directly read and modify it, which can reduce the barrier to information flow. The reserved groove 10 and the waterproof cover plate 12 provide support for the installation, fixation and protection of the RFID chip 11. The head end of the propeller drive shaft 18 is inserted into the interior of the propeller head 1 and connected by the fixing bolt 13 and the bolt groove 14. As the fixing bolt 13 is driven into the bolt groove 14, the end of the fixing bolt 13 presses against the rubber coating 16, causing it to rupture under pressure. The waterproof glue 17 inside it overflows and fills the gap between the fixing bolt 13 and the bolt groove 14 to prevent seawater from entering. The sealing ring 15 further increases the sealing of the connection surface between the propeller drive shaft 18 and the propeller head 1.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A precision propeller for a ship, comprising a propeller head (1), characterized in that: Four groups of propeller blades (2) are fixedly connected to the outside of the propeller head (1), a propeller transmission shaft (18) is laterally inserted into one side of the propeller head (1), a plurality of groups of fixing bolts (13) are inserted from right to left on the side of the propeller transmission shaft (18) near the propeller head (1), a plurality of groups of bolt grooves (14) are provided inside one side of the propeller head (1), and a dosing component for preventing barnacles from climbing is provided on the other side of the propeller head (1); The dosing assembly includes a sealing cover (3), which is threadedly connected to the other side of the propeller head (1); a circular spacer (4) is fixedly connected at a middle position on one side of the interior of the sealing cover (3); a cotton yarn bag (5) is horizontally placed inside the circular spacer (4); a capsaicin concentrate block (6) is arranged inside the cotton yarn bag (5); a plurality of groups of conducting tubes (7) are fixedly connected to the outside of the circular spacer (4); a sealing ball (8) is arranged inside the conducting tube (7); and an elastic rope (9) is movably connected between one side of the sealing ball (8) and the outside of the circular spacer (4).

2. The precision marine propeller according to claim 1, characterized in that: The internal thread of the sealing cover (3) matches the external thread of the other side of the propeller head (1), and the vertical center lines of the propeller head (1), the sealing cover (3) and the circular spacer (4) coincide with each other.

3. The precision marine propeller according to claim 1, characterized in that: The interior of the circular spacer (4) is evenly provided with a plurality of groups of fine holes, and the interiors of the circular spacer (4) and the conducting tube (7) are connected.

4. The precision marine propeller according to claim 1, characterized in that: The outer diameter of the sealing ball (8) is smaller than the inner diameter of the conducting tube (7), and the outer diameter of the sealing ball (8) is larger than the aperture of the outer port of the conducting tube (7).

5. The precision marine propeller according to claim 1, characterized in that: A reserved groove (10) is provided on one side of the front end of the propeller head (1), an RFID chip (11) is applied inside the reserved groove (10), and a waterproof cover plate (12) is provided at the front end of the RFID chip (11).

6. The precision marine propeller according to claim 5, characterized in that: The rear end of the waterproof cover plate (12) is connected to the interior of the reserved groove (10), and the curved surface of the front end of the waterproof cover plate (12) is consistent with the curved surface of the front end of the propeller head (1).

7. The precision marine propeller according to claim 1, characterized in that: A sealing ring (15) is glued to the outer ring of one side of the propeller head (1), a rubber coating (16) is provided on one side inside the bolt groove (14), and the interior of the rubber coating (16) is filled with waterproof glue (17).

8. The precision marine propeller according to claim 7, characterized in that: The rubber coating (16) has elasticity, and the internal thread of the bolt groove (14) and the external thread of the fixing bolt (13) are consistent.

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