High-strength anticorrosion propeller for dredging ship

Abstract

The utility model provides a kind of high-strength anticorrosion propeller for mud blowing ship, it is related to propeller technical field, including shell, the inside of shell is inlaid with bearing, the inside of bearing is connected with shaft, the outer surface of shaft is equipped with propeller body, the inside of shaft and the inside of propeller body are symmetrically threadedly connected with bolt.This utility model is equipped with protective layer, can isolate the direct contact of propeller body and seawater, is equipped with dense oxygen layer, prevents the invasion of oxygen and corrosive substance, is equipped with thick plating, by the way of sacrificial anode protection, preferentially be corroded, protect propeller body from corrosion, is equipped with rust prevention layer, can play the effect of rust prevention, it is equipped with the cooperation of silicone coating, can reduce the adhesion of marine organism, it is equipped with shell, can prevent external impact to propeller body from causing damage, to reduce the corrosion of seawater to propeller, prolongs service life.

Description

Technical Field

[0001] This utility model relates to the field of propeller technology, specifically a high-strength corrosion-resistant propeller for dredging vessels. Background Technology

[0002] A propeller is a device that converts the rotational power of an engine into propulsion by rotating blades in air or water. Propellers are the most widely used type of propulsion device on various types of ships. They can convert about 70% of mechanical power into propulsion and have advantages such as simple structure, low cost, ease of use and high efficiency.

[0003] Existing propellers suffer from corrosion due to the high salt content in seawater during long-term use, especially on the surface where the propeller interacts with the seawater, thus affecting their service life. To address this, we provide a high-strength, corrosion-resistant propeller for dredging vessels. Utility Model Content

[0004] The purpose of this utility model is to provide a high-strength, corrosion-resistant propeller for dredging vessels, so as to solve the problems mentioned in the background art and overcome its technical defects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-strength corrosion-resistant propeller for a mud dredger, comprising a shell, a bearing embedded inside the shell, a rotating shaft connected inside the bearing, a propeller body on the outer surface of the rotating shaft, symmetrical bolts threadedly connected to the interior of the rotating shaft and the interior of the propeller body, a filter plate connected inside the shell, a protective layer on the outer surface of the propeller body, a dense oxygen layer on the outer surface of the protective layer, a thick coating on the outer surface of the dense oxygen layer, a rust-proof layer on the outer surface of the thick coating, and an organosilicon coating on the outer surface of the rust-proof layer.

[0006] As a further improvement of this utility model: one end of the rotating shaft is connected to a scraper, and the front side of the scraper is in contact with the back side of the filter plate.

[0007] As a further improvement of this invention, the protective layer is made of epoxy resin.

[0008] As a further improvement of this invention, the dense oxide layer is composed of a dense oxide film.

[0009] As a further improvement of this invention, the thick coating is composed of zinc powder.

[0010] As a further improvement of this invention, the anti-rust layer is composed of mica iron oxide.

[0011] As a further improvement of this invention, the organosilicon coating is composed of polysiloxane.

[0012] As a further improvement of this utility model, the propeller body is made of nickel-aluminum bronze alloy.

[0013] Compared with the prior art, the beneficial effects of this utility model include: The protective layer effectively isolates the propeller body from direct contact with seawater. The oxygen-dense layer further prevents the intrusion of oxygen and corrosive substances, enhancing corrosion resistance. The thick coating allows for preferential corrosion through sacrificial anodic protection, thus protecting the propeller body from corrosion. The rust-proof layer blocks the penetration of moisture, salt, and oxygen, preventing rust. The addition of an organosilicon coating reduces the adhesion of marine organisms and further enhances the propeller's corrosion resistance. The outer shell prevents external impacts from damaging the propeller body, thereby reducing seawater corrosion and extending its service life. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 The schematic diagram shows a front view of the structure according to one embodiment of the present invention; Figure 2 The schematic diagram shows a side sectional view of a structure according to one embodiment of the present invention; Figure 3 The schematic diagram shows a front view of the housing according to one embodiment of the present invention; Figure 4 The schematic diagram shows a cross-sectional view of a propeller body according to one embodiment of the present invention. The following are the labels in the diagram: 1. Outer shell; 2. Filter plate; 3. Shaft; 4. Bearing; 5. Propeller body; 6. Scraper; 7. Bolt; 8. Protective layer; 9. Oxygen-dense layer; 10. Thick coating; 11. Rust-proof layer; 12. Silicone coating. Detailed Implementation

[0015] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0016] According to one embodiment of the present invention, in conjunction with the appendix Figures 1-4 As shown.

[0017] A high-strength, corrosion-resistant propeller for a mud dredger includes a housing 1, with a bearing 4 embedded inside the housing 1. A shaft 3 is connected inside the bearing 4, and a propeller body 5 is provided on the outer surface of the shaft 3. The shaft 3 and the propeller body 5 are connected by symmetrical bolts 7 with a common thread. A filter plate 2 is connected inside the housing 1. A protective layer 8 is provided on the outer surface of the propeller body 5. An oxygen-density layer 9 is provided on the outer surface of the protective layer 8. A thick coating 10 is provided on the outer surface of the oxygen-density layer 9. A rust-proof layer 11 is provided on the outer surface of the thick coating 10. An organosilicon coating 12 is provided on the outer surface of the rust-proof layer 11. By providing a housing 1, the propeller body 5 can be effectively prevented from being impacted by external forces, thus protecting the propeller body 5. The propeller body 5 is installed to the shaft 3 by bolts 7, which facilitates the installation and disassembly of the propeller body 5.

[0018] In this embodiment, a scraper 6 is connected to one end of the rotating shaft 3. The front of the scraper 6 is in contact with the back of the filter plate 2. As the scraper 6 rotates with the rotating shaft 3, it can clean the impurities on the filter plate 2.

[0019] In this embodiment, the protective layer 8 is made of epoxy resin, which has good chemical stability and corrosion resistance, and can effectively isolate the propeller body 5 from direct contact with seawater, preventing the occurrence of initial corrosion.

[0020] In this embodiment, the dense oxide layer 9 is composed of a dense oxide film, which can form a dense oxide protective layer on the surface of the propeller body 5, further preventing the intrusion of oxygen and corrosive substances and enhancing the corrosion resistance.

[0021] In this embodiment, the thick coating 10 is composed of zinc powder. Zinc has higher metallic activity than the propeller body 5 material, and can be preferentially corroded through sacrificial anode protection, thereby protecting the propeller body 5 from corrosion.

[0022] In this embodiment, the anti-rust layer 11 is composed of mica iron oxide. Mica iron oxide has good shielding properties and can block the penetration of moisture, salt and oxygen, thus playing a role in rust prevention.

[0023] In this embodiment, the organosilicon coating 12 is composed of polysiloxane, which has excellent weather resistance, chemical corrosion resistance and low surface energy, can reduce the attachment of marine organisms, and further improve the corrosion resistance of the propeller body 5.

[0024] In this embodiment, the propeller body 5 is made of nickel-aluminum bronze alloy, which has high strength, high hardness and good wear resistance, and can withstand the high load and impact force during the operation of the dredging vessel, thus extending the service life of the propeller.

[0025] Working principle: The protective layer 8 first isolates seawater from the propeller body, the dense oxygen layer 9 further densifies the protection, the thick coating layer 10 protects the propeller body 5 through sacrificial anode, the anti-rust layer 11 blocks the penetration of corrosive media, and the organosilicon coating 12 reduces biofouling and chemical corrosion, thus preventing the propeller body 5 from being corroded by seawater in all aspects. Through the synergistic effect of multiple layers, a complete anti-corrosion barrier is formed. When cleaning the filter plate 2, the seawater first passes through the filter plate 2 inside the outer shell 1. The filter plate 2 intercepts impurities in the seawater. As the rotating shaft 3 rotates, the scraper 6 connected to one end of the rotating shaft 3 also rotates. The front of the scraper 6 contacts the back of the filter plate 2, scraping off the impurities attached to the filter plate 2. The impurities are discharged with the water flow, keeping the filter plate 2 clean and unobstructed, ensuring that the propeller body 5 operates in a clean environment, and reducing the wear and impact of impurities on the propeller body 5.

[0026] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A high-strength, corrosion-resistant propeller for a dredging vessel, characterized in that, The device includes an outer shell (1), inside which a bearing (4) is embedded, inside which a rotating shaft (3) is connected, on the outer surface of the rotating shaft (3) a propeller body (5) is provided, inside the rotating shaft (3) and inside the propeller body (5) a common threaded connection is provided with symmetrical bolts (7), inside the outer shell (1) a filter plate (2) is connected, on the outer surface of the propeller body (5) a protective layer (8) is provided, on the outer surface of the protective layer (8) a dense oxygen layer (9) is provided, on the outer surface of the dense oxygen layer (9) a thick coating layer (10) is provided, on the outer surface of the thick coating layer (10) a rust-proof layer (11) is provided, and on the outer surface of the rust-proof layer (11) an organosilicon coating (12) is provided.

2. The high-strength corrosion-resistant propeller for a dredging vessel according to claim 1, characterized in that, One end of the rotating shaft (3) is connected to a scraper (6), and the front of the scraper (6) is in contact with the back of the filter plate (2).

3. The high-strength corrosion-resistant propeller for a dredging vessel according to claim 2, characterized in that, The protective layer (8) is made of epoxy resin.

4. A high-strength, corrosion-resistant propeller for a dredging vessel according to claim 3, characterized in that, The dense oxide layer (9) is composed of a dense oxide film.

5. A high-strength, corrosion-resistant propeller for a dredging vessel according to claim 4, characterized in that, The thick coating (10) is composed of zinc powder.

6. A high-strength, corrosion-resistant propeller for a dredging vessel according to claim 5, characterized in that, The rust-proof layer (11) is composed of mica iron oxide.

7. A high-strength, corrosion-resistant propeller for a dredging vessel according to claim 6, characterized in that, The organosilicon coating (12) is composed of polysiloxane.

8. A high-strength, corrosion-resistant propeller for a dredging vessel according to claim 7, characterized in that, The propeller body (5) is made of nickel-aluminum bronze alloy.

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