A nano-composite coating structure for polar ship propeller surface

Abstract

The utility model relates to polar ship propeller technical field, and disclose a kind of polar ship propeller surface nano composite coating structure, solve the problem of the effect of current biological attachment inhibition is not good, it includes bottom layer, the top of bottom layer is fixedly connected with intermediate reinforcing layer, the top of intermediate reinforcing layer is fixedly connected with transition layer, the top of transition layer is fixedly connected with surface layer, the top of surface layer is rotatably connected with shaft, the top of shaft is fixedly connected with top plate, the bottom of top plate is fixedly connected with two scrapers of symmetry, two scrapers are all attached with surface layer;The utility model, by the cooperation between shaft and top plate, it is convenient for two scrapers to rotate under the action of water flow, in turn can scrape off marine organism attached to the surface of surface layer, and the outer surface of shaft, top plate and scraper is equipped with anti-bioadhesion layer made of polytetrafluoroethylene material, can resist biological attachment, to facilitate improving the effect of biological attachment inhibition.

Description

Technical Field

[0001] This utility model belongs to the field of polar ship propeller technology, specifically a nano-composite coating structure on the surface of a polar ship propeller. Background Technology

[0002] During polar navigation and anchoring, propeller surfaces face the severe challenge of attachment by marine organisms such as barnacles, algae, and mussels. Such biological attachment not only increases the ship's navigation resistance and fuel consumption, but also damages the integrity of the coating, accelerates the corrosion of the metal substrate, and even causes abnormal propeller vibration and noise. However, existing coating technologies are significantly insufficient in suppressing biological attachment under the complex environment of polar low temperature, high salinity, and strong current. Utility Model Content

[0003] In view of the above situation and to overcome the shortcomings of the existing technology, this utility model provides a nano-composite coating structure for the surface of polar ship propellers, which effectively solves the problem of poor effect in inhibiting biofouling.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a nano-composite coating structure for the surface of a polar ship propeller, comprising a bottom layer, an intermediate reinforcing layer fixedly connected to the top of the bottom layer, a transition layer fixedly connected to the top of the intermediate reinforcing layer, a surface layer fixedly connected to the top of the transition layer, a rotating shaft rotatably connected to the top of the surface layer, a top plate fixedly connected to the top of the rotating shaft, and two scrapers symmetrically fixedly connected to the bottom of the top plate, both scrapers being in contact with the surface layer.

[0005] Preferably, the outer surfaces of the rotating shaft, top plate, and scraper are all provided with an anti-biofouling layer, which is made of polytetrafluoroethylene.

[0006] Preferably, the bottom layer is made of epoxy resin.

[0007] Preferably, the intermediate reinforcing layer is made of polyurethane rubber.

[0008] Preferably, the transition layer is made of a graphene-epoxy resin composite material.

[0009] Preferably, the surface layer is made of silicone gel material.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The cooperation between the rotating shaft and the top plate facilitates the rotation of the two scrapers under the action of water flow, thereby scraping off marine organisms attached to the surface. The outer surfaces of the rotating shaft, the top plate, and the scrapers are all equipped with an anti-biofouling layer made of polytetrafluoroethylene, which can resist biofouling and thus improve the effect of inhibiting biofouling.

[0012] 2. Through the cooperation between the intermediate reinforcing layer, the transition layer and the surface layer, it is easy to achieve the effect of impact resistance and wear resistance. At the same time, it can evenly conduct the heat of the propeller during operation, avoid local overheating and coating aging, and also play a role in corrosion prevention. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the nano-composite coating structure on the surface of the polar ship propeller of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall disassembly structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the rotating shaft structure of this utility model.

[0018] In the diagram: 1. Bottom layer; 2. Rotating shaft; 3. Surface layer; 4. Transition layer; 5. Intermediate reinforcement layer; 6. Top plate; 7. Scraper. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Example 1, by Figure 1-3 The present invention relates to a nano-composite coating structure for the surface of a polar ship propeller, comprising a bottom layer 1, an intermediate reinforcing layer 5 fixedly connected to the top of the bottom layer 1, a transition layer 4 fixedly connected to the top of the intermediate reinforcing layer 5, a surface layer 3 fixedly connected to the top of the transition layer 4, a rotating shaft 2 rotatably connected to the top of the surface layer 3, a top plate 6 fixedly connected to the top of the rotating shaft 2, and two scrapers 7 symmetrically fixedly connected to the bottom of the top plate 6, both scrapers 7 being in contact with the surface layer 3. The outer surfaces of the rotating shaft 2, the top plate 6, and the scrapers 7 are all provided with an anti-bioadhesion layer made of polytetrafluoroethylene.

[0021] When the propeller is running, the two scrapers 7 rotate under the action of water flow, scraping off the marine organisms attached to the surface of the surface layer 3. The outer surfaces of the shaft 2, the top plate 6 and the scrapers 7 are all provided with an anti-biofouling layer made of polytetrafluoroethylene, which reduces surface energy, inhibits the attachment of marine organisms such as barnacles and algae, and improves the effect of inhibiting biofouling.

[0022] Specifically, by Figure 1-2 As shown, the bottom layer 1 is made of epoxy resin, the middle reinforcing layer 5 is made of polyurethane rubber, the transition layer 4 is made of graphene-epoxy resin composite material, and the surface layer 3 is made of silicone gel.

[0023] In operation, the bottom layer 1 directly covers the surface of the propeller's metal substrate. Made of epoxy resin, the bottom layer 1 enhances the adhesion between the coating and the metal through chemical bonding, preventing the coating from peeling off, filling microscopic defects on the metal surface, and providing a smooth transition. The middle reinforcing layer 5 is the core load-bearing layer of the coating. Made of polyurethane rubber, it absorbs the impact energy of the ice layer, resists the high-frequency impact of iceberg debris and floating ice, and withstands the hydrodynamic wear and scouring of mud and sand during the high-speed rotation of the propeller. By setting the transition layer 4, the heat generated during propeller operation is evenly conducted to avoid local overheating that could lead to coating aging. The surface layer 3, made of silicone gel, provides long-term corrosion protection for the polar propeller.

Claims

1. A nano-composite coating structure for the surface of a polar ship propeller, comprising a base layer (1), characterized in that: The top of the bottom layer (1) is fixedly connected to an intermediate reinforcing layer (5), the top of the intermediate reinforcing layer (5) is fixedly connected to a transition layer (4), the top of the transition layer (4) is fixedly connected to a surface layer (3), the top of the surface layer (3) is rotatably connected to a rotating shaft (2), the top of the rotating shaft (2) is fixedly connected to a top plate (6), and the bottom of the top plate (6) is symmetrically fixedly connected to two scrapers (7), both scrapers (7) are in contact with the surface layer (3).

2. The nano-composite coating structure for the surface of a polar ship propeller according to claim 1, characterized in that: The outer surfaces of the rotating shaft (2), top plate (6) and scraper (7) are all provided with an anti-bioadhesion layer, which is made of polytetrafluoroethylene.

3. The nano-composite coating structure for the surface of a polar ship propeller according to claim 1, characterized in that: The bottom layer (1) is made of epoxy resin.

4. The nano-composite coating structure for the surface of a polar ship propeller according to claim 1, characterized in that: The intermediate reinforcing layer (5) is made of polyurethane rubber.

5. The nano-composite coating structure for the surface of a polar ship propeller according to claim 1, characterized in that: The transition layer (4) is made of graphene-epoxy resin composite material.

6. The nano-composite coating structure for the surface of a polar ship propeller according to claim 1, characterized in that: The surface layer (3) is made of silicone gel material.

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