Radome with rain-erosion-proof coating

Abstract

The utility model discloses a radome with a rainproof coating, which comprises a radome body made of ceramic materials, a base arranged at the bottom of the radome body, a protection plate slidably mounted on the inner side of the radome body, an arc-shaped radome body arranged on the inner side of the radome body, and an arc-shaped radome body arranged on the outer side of the radome body. The outer side of the protective coating is coated with the protective coating, the inner side of the protective coating is provided with the polyaspartic acid ester resin layer, and the polyaspartic acid ester resin layer can effectively resist erosion of rainwater. According to the radome with the rain erosion resistant coating, the outer side surface of the radome body is coated with the protective coating, and the overall rain erosion resistant performance of the radome body can be improved through the protective coating, so that good performance and stability of the radome of an aircraft can be kept in a severe flight environment; the radome can be effectively prevented from being eroded and damaged by rainwater, normal operation of an antenna system is protected, and the service life of the radome is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna covers, in particular to an antenna cover with an anti-rain erosion coating. Background Art

[0002] The aircraft radome is a special protective structure, which is mainly used to protect the internal antenna system and provide a quasi-transparent electromagnetic window so that the antenna can transmit and receive signals normally. It is usually made of dielectric materials that allow electromagnetic waves to pass through while providing the necessary mechanical strength and environmental protection. In the aircraft, the radome not only protects the antenna, but also ensures the aerodynamic shape and stealth performance of the aircraft. In addition, it also needs to meet multiple complex requirements such as electrical indicators, mechanical structure strength, weather resistance, service life, and process manufacturing costs. The aircraft radome is an important part of the aircraft antenna system. Its design and manufacturing need to take into account multiple factors to ensure that it can work effectively in complex environments;

[0003] In the "A high-transmittance quartz ceramic antenna cover for outdoor use" with the patent CN219917588U, it includes a ceramic cover body, a mounting sleeve and a top cover. The bottom end of the ceramic cover body is fixedly connected to the mounting sleeve, and the lower side of the outer wall of the ceramic cover body is provided with a fastening bolt hole. The top of the ceramic cover body is fixedly connected to the top cover, and the inner wall of the mounting sleeve is fixedly connected to the supporting structure. The inside of the top cover is fixedly connected to an auxiliary structure, and the auxiliary structure includes a baffle, a first protective paint and a second protective paint. The baffle is fixedly connected to the inside of the top cover. The utility model is provided with an auxiliary structure to prevent the antenna cover from being affected by the thickness and material. For this purpose, a baffle made of a heat-resistant resin-based quartz fiber composite material as the main material is fixedly installed inside the top cover, and the thickness of the ceramic cover body is optimized so that the antenna signal can stably penetrate the baffle for conduction, thereby improving the signal transmission efficiency.

[0004] However, when the above-mentioned radome is used with an aircraft, the chemical components and particles in the rain may corrode the material of the radome. Long-term exposure to rain may cause erosion on the surface of the radome, resulting in degradation of material performance and even damage to the structural integrity of the radome. Such corrosion will affect the service life of the radome and may cause it to fail in flight, but will not affect the stable flight use of the aircraft in the future;

[0005] Therefore, we proposed that a radome with anti-rain erosion coating can solve the above problems well. Utility Model Content

[0006] The purpose of the utility model is to provide a radome with an anti-rain erosion coating to solve the problem raised by the above background technology that the chemical components and particles in the rain may cause corrosion to the material of the radome in the current market. The surface of the radome may be eroded after long-term exposure to rain, resulting in a decrease in material performance and even the structural integrity of the radome. Such corrosion will affect the service life of the radome and may cause it to fail in flight, without affecting the stable flight use of the aircraft in the later stage.

[0007] To achieve the above object, the utility model provides the following technical solutions: a radome with an anti-rain erosion coating, comprising a radome body, which is made of a ceramic material, and a base is provided at the bottom of the radome body, and the base is mounted on the outside of the aircraft through a circle of screws;

[0008] It also includes: an antenna cover body, on the inner side of which a protective plate is slidably installed, and the protective plate and the antenna cover body are both in an arc shape; the outer side of the antenna cover body is coated with a protective coating, and the inner side of the protective coating is provided with a polyaspartic acid resin layer, and the polyaspartic acid resin layer can effectively resist the erosion of rain water.

[0009] Preferably, the protective coating has a solvent disposed on the inner side of the bottom, an aliphatic isocyanate layer disposed on the outer side of the solvent, and a polyol layer disposed on the outer side of the aliphatic isocyanate layer.

[0010] Preferably, a hydroxy polyester color paste layer is disposed on the outer side of the polyol layer, a titanate coupling agent is disposed on the outer side of the hydroxy polyester color paste layer, and a methyl silicone resin is disposed on the outer side of the titanate coupling agent.

[0011] Preferably, the methyl silicone resin has a modified silicon dioxide super hydrophobic layer disposed on its outer side, and a polyaspartic acid ester resin layer is disposed on the outer side of the modified silicon dioxide super hydrophobic layer.

[0012] Preferably, the antenna cover body has cushioning airbags fitted on both sides of its inner wall, and the two cushioning airbags are symmetrically arranged about the vertical center line of the antenna cover body, and the outer sides of the two cushioning airbags are fitted and connected to the outer side walls of the protective plate. The two cushioning airbags can increase the cushioning and protective performance between the antenna cover body and the protective plate.

[0013] Preferably, the antenna cover body has extrusion rods connected to both sides of its top through movable shafts, and the two extrusion rods are inclined, and the bottom ends of the two extrusion rods are connected to moving blocks through movable shafts, wherein the two moving blocks are slidably installed on the outer sides of both ends of the protective plate, and the protective plate has grooves on both ends of its outer side to provide buffer springs, and the two buffer springs have the same structure, and the outer ends of the two buffer springs are connected to moving blocks, and the two buffer springs can be used to elastically reset the position of the moving blocks after the two extrusion movements.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] By coating the outer surface of the radome body with a layer of protective coating, the overall rain erosion resistance of the radome body can be improved through the protective coating, so as to ensure that the aircraft radome can maintain its good performance and stability in a harsh flight environment, effectively prevent rain from eroding and damaging the radome, protect the normal operation of the antenna system, and extend the service life of the radome;

[0016] Furthermore, a solvent is provided at the bottom of the protective coating, which can be used to dilute and adjust the viscosity, so that the coating is easy to apply and flow during the construction process, and then an aliphatic isocyanate layer and a polyol layer are provided on the outside of the solvent, which can not only improve the elasticity and durability through the aliphatic isocyanate layer, but also improve the hardness and wear resistance of the protective coating through the polyol layer;

[0017] Furthermore, by providing a hydroxy polyester color paste layer on the outside of the polyol layer, and then providing a titanate coupling agent on the outside of the hydroxy polyester color paste layer, not only can the weather resistance and chemical resistance of the coating be improved through the hydroxy polyester color paste layer, but also the adhesion of the protective coating can be enhanced through the titanate coupling agent. Finally, a methyl silicone resin, a modified silica super-hydrophobic layer and a polyaspartic acid ester resin layer are provided on the outside of the titanate coupling agent, respectively, which can not only improve the wear resistance, hardness and durability of the protective coating, but also improve the weather resistance and chemical resistance of the protective coating, and can effectively resist the erosion of rainwater;

[0018] A protective plate is slidably installed on the inner side of the radome body, and then both sides of the protective plate are connected to the inner wall of the radome body through cushioning airbags. The cushioning protection performance between the radome body and the protective plate can be increased through the two cushioning airbags, thereby improving the service life of the radome body.

[0019] Furthermore, squeezing rods are connected to both sides of the top of the antenna cover body through movable shafts, and then moving blocks are connected to the bottom of the two squeezing rods through movable shafts. When the antenna cover body is squeezed and collided, the two squeezing rods can be driven to squeeze the two moving blocks through the movable shafts to move their positions. Then, the two buffer springs can elastically reset the positions of the two moving blocks after the squeezing and movement through their own elastic force, thereby facilitating the buffering and resetting of the position of the protective plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2It is a schematic diagram of the partial three-dimensional structure of the antenna cover body of the utility model;

[0022] Figure 3 It is a schematic diagram of the partial three-dimensional structure of the protective coating of the utility model;

[0023] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 It is a schematic diagram of the partial main cross-section structure of the antenna cover body and the protective plate of the utility model;

[0025] Figure 6 It is a schematic diagram of the partial main cross-sectional structure of the utility model after the antenna cover body and the protective plate are moved;

[0026] Figure 7 For this utility model Figure 5 Enlarged structural diagram at B in the middle.

[0027] In the figure: 1. Radome body; 2. Base; 3. Protective coating; 4. Solvent; 5. Aliphatic isocyanate layer; 6. Polyol layer; 7. Hydroxyl polyester color paste layer; 8. Titanate coupling agent; 9. Methyl silicone resin; 10. Modified silica super hydrophobic layer; 11. Polyaspartic acid ester resin layer; 12. Protective plate; 13. Buffer airbag; 14. Extrusion rod; 15. Moving block; 16. Buffer spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] This utility provides the following technical solutions:

[0030] Embodiment 1, in order to solve the problem that the existing antenna cover body 1 cannot protect its outer surface from rain erosion, discloses:

[0031] The radome body 1 is made of ceramic material, and a base 2 is provided at the bottom of the radome body 1, and the base 2 is installed on the outside of the aircraft through a circle of screws;

[0032] It also includes: a radome body 1, on the inner side of which a protective plate 12 is slidably installed, and the protective plate 12 and the radome body 1 are both in an arc shape; the radome body 1 is coated with a protective coating 3 on the outer side, and a polyaspartic acid resin layer 11 is provided on the inner side of the protective coating 3, and the polyaspartic acid resin layer 11 can effectively resist the erosion of rain water.

[0033] A protective coating 3 is provided with a solvent 4 on the inner side of the bottom thereof, and an aliphatic isocyanate layer 5 is provided on the outer side of the solvent 4, and a polyol layer 6 is provided on the outer side of the aliphatic isocyanate layer 5, and a hydroxyl polyester color paste layer 7 is provided on the outer side of the polyol layer 6, and a titanate coupling agent 8 is provided on the outer side of the hydroxyl polyester color paste layer 7, and a methyl silicone resin 9 is provided on the outer side of the titanate coupling agent 8, and a modified silica super-hydrophobic layer 10 is provided on the outer side of the methyl silicone resin 9, and a polyaspartic acid ester resin layer 11 is provided on the outer side of the modified silica super-hydrophobic layer 10.

[0034] like Figure 1-Figure 4 As shown, a protective coating 3 is coated on the outside of the antenna cover body 1, and the viscosity of the protective coating 3 can be increased by a solvent 4 arranged inside the protective coating 3, which is convenient for construction and coating, and then the aliphatic isocyanate layer 5 and the polyol layer 6 are used to not only increase the elasticity and durability of the protective coating 3, but also help to improve the hardness and wear resistance of the protective coating 3, and then the hydroxyl polyester color paste layer 7 is used to improve the weather resistance and chemical resistance of the protective coating 3, and at the same time enhance the adhesion, and finally the methyl silicone resin 8, the methyl silicone resin / silicon dioxide composite layer 9, the modified silica super hydrophobic layer 10 and the polyaspartic acid ester resin layer 11 are used to increase the overall waterproofness and leveling of the protective coating 3, improve the adhesion, improve the durability of the protective coating 3, have good weather resistance and chemical resistance, can effectively resist the erosion of rain water, and improve the overall service life of the antenna cover body 1.

[0035] Embodiment 2 is different from Embodiment 1 in that two cushioning airbags 13 can be used to increase the cushioning and protective performance between the radome body 1 and the protective plate 12, and discloses:

[0036] The antenna cover body 1 has cushioning airbags 13 fitted on both sides of its inner wall, and the two cushioning airbags 13 are symmetrically arranged about the vertical center line of the antenna cover body 1, and the outer sides of the two cushioning airbags 13 are fitted and connected to the outer side wall of the protective plate 12.

[0037] like Figure 1-Figure 5 As shown, when the antenna cover body 1 is squeezed and collided, the cushioning airbags 13 arranged on both sides of the inner wall of the antenna cover body 1 will increase the cushioning performance between the antenna cover body 1 and the protective plate 12, avoiding the antenna cover body 1 from being deformed and damaged due to squeezing and collision, and improving the service life of the antenna cover body 1.

[0038] Embodiment 3 is different from Embodiment 2 in that two buffer springs 16 can be used to reset the guard plate 12 after being squeezed, and the following is disclosed:

[0039] The antenna cover body 1 has extrusion rods 14 connected to both sides of its top through movable shafts, and the two extrusion rods 14 are inclined, and the bottom ends of the two extrusion rods 14 are connected to moving blocks 15 through movable shafts, wherein the two moving blocks 15 are slidably installed on the outer sides of the two ends of the protective plate 12, and the protective plate 12 has buffer springs 16 grooved at both ends of its outer side, and the two buffer springs 16 have the same structure, and the outer ends of the two buffer springs 16 are connected to the moving blocks 15.

[0040] like Figure 1-Figure 7 As shown, when the antenna cover body 1 is squeezed and collided, the squeezing rod 14 connected to the movable shafts on both sides of the top of the antenna cover body 1 will drive the two moving blocks 15 to move on both sides of the protective plate 12. At this time, the two buffer springs 16 will elastically reset the two squeezed moving blocks 15 through their own elastic force, thereby resetting and buffering the protective plate 12.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention is described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A radome with an anti-rain erosion coating, comprising a radome body (1) made of a ceramic material, a base (2) being arranged at the bottom of the radome body (1), and the base (2) being mounted on the outside of an aircraft by a circle of screws; It is characterized in that Also includes: A radome body (1) has a protective plate (12) slidably mounted on the inner side thereof, and the protective plate (12) and the radome body (1) are both in an arc shape; The radome body (1) has a protective coating (3) coated on its outer side, and a polyaspartic acid ester resin layer (11) is provided on the inner side of the protective coating (3), and the polyaspartic acid ester resin layer (11) can effectively resist erosion by rainwater.

2. The radome with anti-rain erosion coating according to claim 1, characterized in that: A protective coating (3) has a solvent (4) disposed on the inner side of the bottom thereof, an aliphatic isocyanate layer (5) disposed on the outer side of the solvent (4), and a polyol layer (6) disposed on the outer side of the aliphatic isocyanate layer (5).

3. The radome with anti-rain erosion coating according to claim 2, characterized in that: A polyol layer (6) is provided with a hydroxy polyester color paste layer (7) on its outer side, a titanate coupling agent (8) is provided on the outer side of the hydroxy polyester color paste layer (7), and a methyl silicone resin (9) is provided on the outer side of the titanate coupling agent (8).

4. The radome with anti-rain erosion coating according to claim 3, characterized in that: A methyl silicone resin (9) is provided with a modified silicon dioxide super hydrophobic layer (10) on its outer side, and a polyaspartic acid ester resin layer (11) is provided on the outer side of the modified silicon dioxide super hydrophobic layer (10).

5. The radome with anti-rain erosion coating according to claim 1, characterized in that: The antenna cover body (1) has cushioning airbags (13) fitted on both sides of its inner wall, and the two cushioning airbags (13) are symmetrically arranged about the vertical center line of the antenna cover body (1), and the outer sides of the two cushioning airbags (13) are fitted and connected to the outer side wall of the protective plate (12).

6. The radome with anti-rain erosion coating according to claim 5, characterized in that: The antenna cover body (1) has extrusion rods (14) connected to both sides of its top via movable shafts, and the two extrusion rods (14) are both inclined, and the bottom ends of the two extrusion rods (14) are connected to moving blocks (15) via movable shafts, wherein the two moving blocks (15) are slidably mounted on the outer sides of both ends of the protective plate (12).

7. The radome with anti-rain erosion coating according to claim 6, characterized in that: The protective plate (12) has grooves at both ends of its outer side and buffer springs (16) are provided thereon, the two buffer springs (16) have the same structure, and the outer ends of the two buffer springs (16) are connected to moving blocks (15).

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