Flexible ejection device for composite material launch canister

Abstract

The invention belongs to the technical field of composite material application, and particularly relates to a flexible ejection device for a composite material launch canister, which comprises a launch canister body, a compression corrugated flexible pipe body, an upper flange, a lower flange, an upper fixing ring, a lower fixing ring, an upper sealing pressing plate and a lower pressing plate, the upper portion and the lower end of the launching barrel are connected with an upper flange and a lower flange respectively, the upper flange is in sliding connection with the launching barrel, the lower flange is fixedly connected with the launching barrel, the bottom of the upper flange is connected with an upper sealing pressing plate, and the upper flange is in sealing connection with the upper sealing pressing plate and then limits and fixes the upper fixing ring. The lower flange and the lower pressing plate are connected in a sealed mode and then limit and fix the lower fixing ring, the upper end and the lower end of the compression corrugated flexible pipe body are turned up and rolled to integrally wrap the upper fixing ring and the lower fixing ring, a high-pressure gas connector is arranged on the lower pressing plate, and the compression corrugated flexible pipe has the advantages of being light in structure, capable of being used repeatedly, good in adaptability and the like.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of composite material application, and particularly relates to a flexible ejection device for a composite material launch tube. BACKGROUND

[0002] At present, the development of various countries is increasingly mature in terms of launching technology, and can be roughly divided into hot launching and cold launching in terms of launching mode. Hot launching is that a missile directly flies out of a launching device by relying on the gas flow thrust generated by the ignition of its own engine, and high-temperature and high-pressure gas flow is generated during launching, so that the ablation resistance and impact resistance of the launching device are required to be high, in addition, the design of the exhaust system is complex, and the safety is relatively low.

[0003] Based on the above needs, the present technology provides a flexible ejection device for a composite material launch tube, aiming to solve the deficiencies existing in the hot launching mode. This technology belongs to the field of cold launching mode, has a light structure, can effectively reduce the system weight, reduce the launching overload, reduce the thermal damage and pollution, adapt to various launching platforms, can be reused, has strong controllability in the launching process, and adapts to different task requirements. SUMMARY

[0004] The present application provides a flexible ejection device for a composite material launch tube, which can solve the problems pointed out in the background art.

[0005] A flexible ejection device for a composite material launch tube, comprising a launch tube body, a compressed corrugated flexible pipe body, an upper flange, a lower flange, an upper fixed ring, a lower fixed ring, an upper sealing pressure plate and a lower pressure plate, the compressed corrugated flexible pipe body is located in the launch tube body, the upper part and the lower end of the launch tube body are connected with the upper flange and the lower flange respectively, the upper flange is in sliding connection with the launch tube body, the lower flange is in fixed connection with the launch tube body, the bottom of the upper flange is connected with the upper sealing pressure plate, after the upper flange is in sealing connection with the upper sealing pressure plate, the upper fixed ring is fixed in position, the upper part of the lower flange is connected with the lower pressure plate, after the lower flange is in sealing connection with the lower pressure plate, the lower fixed ring is fixed in position, after the upper flange and the lower flange are respectively connected with the upper sealing pressure plate and the lower pressure plate, upper and lower limit groove rings are respectively formed, for the position fixing of the upper fixed ring and the lower fixed ring, the upper and lower ends of the compressed corrugated flexible pipe body are respectively folded and rolled to wrap the upper fixed ring and the lower fixed ring as a whole, a high-pressure gas interface is arranged on the lower pressure plate, the compressed corrugated flexible pipe body is a aramid composite material flexible pipe body, and the launch tube body is a glass steel launch tube body.

[0006] Preferably, the lower flange is detachably fixedly connected with the launch tube body, and the upper flange and the lower flange are respectively detachably fixedly connected with the upper sealing pressure plate and the lower pressure plate.

[0007] Preferably, the detachable fixing is all screw connection.

[0008] Preferably, the upper flange and the lower flange are respectively provided with embedded sealing rubber rings for sealing.

[0009] Beneficial effects: the present application provides a flexible launching device for composite material launching tube, which has the following beneficial effects: 1. Light structure, reducing system weight. The flexible launching device uses a flexible pipe body made of light and flexible material as a launching working medium container. Compared with traditional rigid air cylinders or gas generators, the overall structure is lighter, which helps to reduce the total mass of the missile launching system and improve the mobility and deployment efficiency.

[0010] 2. Reduce launch overload and improve missile safety. The flexible pipe body can provide a relatively smooth thrust curve during inflation, avoiding the high overload impact caused by the sudden rise of thrust in traditional gas launching, which is beneficial to protect the internal precision electronic equipment of the missile and improve the launch reliability and safety.

[0011] 3. Cold launch characteristics, reduce thermal damage and pollution. The flexible launching belongs to cold launch technology, which does not produce high-temperature gas or toxic gas during launching, avoiding the problems of thermal damage and environmental pollution, and is particularly suitable for launching scenes with high safety requirements such as shipborne, urban or enclosed space.

[0012] 4. Adapt to various launching platforms and improve deployment flexibility. The flexible launching device system has compact and foldable structure, which is convenient to integrate into various launching platforms.

[0013] 5. Reusable, reduce use cost. The flexible pipe body has good elasticity and pressure resistance, which can be recycled, folded and reused after launching, significantly reducing the maintenance and replacement cost of the launching system and improving the economy and sustainability of the system.

[0014] 6. Strong controllability during launching, adapt to different task requirements. By adjusting the inflation pressure, inflation speed and action area of the flexible pipe body, the initial speed and launch angle of the missile can be flexibly controlled to meet the requirements of different tactical tasks on launch parameters and improve the adaptability of the system.

[0015] 7. Reduce recoil force and improve launching platform stability. The flexible pipe body can effectively absorb and disperse the reaction force generated during launching, reducing the impact on the launching platform, which is particularly suitable for light vehicles or shipborne platforms, improving the launching stability and precision. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the storage state of the present application. Figure 2 For the present invention Figure 1 A schematic diagram of the structure at point A in the middle. Figure 3 This is a schematic diagram of the structure in the launch state of the present invention. Figure 4 For the present invention Figure 3 A schematic diagram of the structure at point B. Explanation of reference numerals in the attached figures: The following labels are used in the diagram: 1. Launch tube body; 2. Compressed corrugated flexible tube body; 3. Upper flange; 4. Lower flange; 5. Upper fixing ring; 6. Lower fixing ring; 7. Upper sealing pressure plate; 8. Lower pressure plate; 9. High-pressure gas interface; 10. Countersunk screw; 11. Upper limit groove ring; 12. Lower limit groove ring; 13. Embedded sealing rubber ring; 20. Launcher. Detailed Implementation

[0017] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0018] Example: Figures 1-4 As shown in the figure, an embodiment of the present invention provides a flexible ejection device for a composite material launch tube, including a launch tube body 1, a compressed corrugated flexible tube body 2, an upper flange 3, a lower flange 4, an upper fixing ring 5, a lower fixing ring 6, an upper sealing pressure plate 7, and a lower pressure plate 8. The compressed corrugated flexible tube body 2 is located inside the launch tube body 1. The upper flange 3 and the lower flange 4 are respectively connected to the upper part and the lower part of the launch tube body 1. The upper flange 3 is slidably connected to the launch tube body 1, and the lower flange 4 is fixedly connected to the launch tube body 1. The upper sealing pressure plate 7 is connected to the bottom of the upper flange 3. After the upper flange 3 and the upper sealing pressure plate 7 are sealed together, the upper fixing ring 5 is limited and fixed. The lower flange 4 is connected to the lower pressure plate 8 at the top. After the lower flange 4 and the lower pressure plate 8 are sealed together, the lower fixing ring 6 is limited and fixed. Specifically, after the upper flange 3, the lower flange 4 are connected to the upper sealing pressure plate 7 and the lower pressure plate 8, an upper limiting groove ring 11 and a lower limiting groove ring 12 are respectively formed to limit and fix the upper fixing ring 5 and the lower fixing ring 6. The upper and lower ends of the compressed corrugated flexible tube 2 are respectively rolled up and wrapped around the upper fixing ring 5 and the lower fixing ring 6. The wrapping can be stably connected by glue or the like. The lower pressure plate 8 is provided with a high-pressure gas interface 9. High-pressure gas is quickly filled into the compressed corrugated flexible tube 2 through the high-pressure gas interface 9, causing the compressed corrugated flexible tube 2 to expand instantaneously along the axis of the launch tube 1, thereby generating thrust to drive the launcher 20 to move forward for launch.

[0019] Specifically, the lower flange 4 is detachably fixed to the launching tube 1, and the upper flange 3, lower flange 4 are detachably fixed to the upper sealing plate 7 and the lower pressure plate 8 respectively. All of the above detachable fixings are connected by countersunk screws 10.

[0020] Specifically, the compressed corrugated flexible pipe body 2 is an aramid composite material flexible pipe body, and the aramid composite material is a mature composite material, that is, mainly composed of a reinforcing layer and a matrix layer. The reinforcing layer is woven by aramid fibers to provide strength for the main structure; the matrix layer is polyurethane resin to provide sealing performance for the main structure. The characteristics are that the reinforcing layer has high fiber strength, small density, low thermal expansion coefficient, small elongation at break, and good fatigue resistance, which can meet the working conditions under high pressure environment; the matrix layer resin not only has excellent wear resistance, adhesion, and high adhesion, but also has good flexibility, good elasticity, high mechanical strength, and high impact resistance under low temperature conditions.

[0021] The launch cylinder body 1 is a glass steel launch cylinder body, which can be made by fiber winding process according to different sizes of launch bodies. The advantage is that the glass steel composite material winding formed launch cylinder body 1 is light weight and high strength, and can be designed directionally according to different functional requirements; Specifically, the upper flange 3 and the lower flange 4 are respectively sealed by the embedded sealing rubber ring 13 together with the upper sealing pressing plate 7 and the lower pressing plate 8.

[0022] The above disclosure is only a few specific embodiments of the present application, but the embodiments of the present application are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A flexible ejection device for a composite material launch tube, comprising a launch tube body (1), a compression corrugated flexible tube body (2), an upper flange (3), a lower flange (4), an upper fixing ring (5), a lower fixing ring (6), an upper sealing plate (7), and a lower pressure plate (8), wherein the compression corrugated flexible tube body (2) is located inside the launch tube body (1), the upper flange (3) and the lower flange (4) are respectively connected to the upper part and the lower end of the launch tube body (1), the upper flange (3) is slidably connected to the launch tube body (1), the lower flange (4) is fixedly connected to the launch tube body (1), the bottom of the upper flange (3) is connected to the upper sealing plate (7), and after the upper flange (3) is sealed to the upper sealing plate (7), the upper fixing ring (5) is limited and fixed, and the lower flange... (4) The upper part is connected to the lower pressure plate (8). After the lower flange (4) is sealed and connected to the lower pressure plate (8), the lower fixing ring (6) is limited and fixed. The upper flange (3), the lower flange (4) are connected to the upper sealing pressure plate (7) and the lower pressure plate (8) respectively to form an upper limit groove ring (11) and a lower limit groove ring (12), which are used for the upper fixing ring (5) and the lower fixing ring (6) respectively. The upper and lower ends of the compression corrugated flexible tube (2) are respectively rolled and wrapped around the upper fixing ring (5) and the lower fixing ring (6). The lower pressure plate (8) is provided with a high-pressure gas interface (9). The compression corrugated flexible tube (2) is an aramid composite flexible tube. The launching tube (1) is a fiberglass launching tube.

2. The flexible ejection device for a composite material launch tube according to claim 1, characterized in that: The lower flange (4) is detachably and fixedly connected to the launching tube (1), and the upper flange (3), lower flange (4) are detachably and fixedly connected to the upper sealing plate (7) and the lower pressure plate (8), respectively.

3. A flexible ejection device for a composite material launch tube according to claim 2, characterized in that: All detachable fixings are connected by countersunk screws (10).

4. A flexible catapult device for a composite material launch tube according to claim 1, characterized in that: The upper flange (3), lower flange (4), upper sealing plate (7), and lower pressure plate (8) are respectively provided with embedded sealing rings (13) for sealing.

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