Cylinder barrel structure formed by metal and composite material

Abstract

The utility model relates to a cylinder barrel structure formed by metal and composite materials. The cylinder wall of a cylinder barrel sequentially comprises a metal lining layer, a buffering combination layer, a composite material lining layer, a composite material structure layer and an outer sealing layer from inside to outside. The buffer bonding layer is respectively bonded with the metal lining layer and the composite material lining layer by adopting tough epoxy resin glue; compared with the prior art, the novel cylinder barrel structure is built through the cooperation of a metal structure and a composite material structure, and compared with the prior art, the novel cylinder barrel structure can bear high temperature and high pressure and is light in weight and good in performance.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder bodies and cylinder walls, in particular to a metal and composite material formed cylinder barrel structure. Background Art

[0002] The structure of the launch cylinder is generally made of metal or composite materials. The metal cylinder is generally made of steel. Since the weight requirement indicators need to be referred to during the design and processing process, there is often a problem of excessive weight. The composite cylinder is easily damaged by the high-temperature and high-pressure gas erosion caused by launch (gas temperature 2000K, burning rate 2-3 Mach, pressure 0.6-1.5mpa), making it impossible to use it a second time.

[0003] Therefore, both of these two types of cylinders have problems in practical applications, and it is necessary to design a cylinder formed by a structure in which metal and composite materials cooperate with each other. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to solve the problems existing in the above-mentioned background technology, an improved metal and composite material forming cylinder structure is provided.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a metal and composite material formed cylinder structure, the cylinder wall of the cylinder comprises a metal lining layer, a buffer bonding layer, a composite material lining layer, a composite material structural layer and an outer sealing layer from the inside to the outside;

[0006] The metal lining layer is used to bear the high temperature and high pressure during the launch process. The metal lining layer is formed by drawing to ensure the inner hole size, roundness, straightness, and the outer surface is roughened.

[0007] The buffer bonding layer is bonded to the metal lining layer and the composite material lining layer respectively by tough epoxy resin adhesive, thereby ensuring the bonding strength of the metal lining layer composite material and preventing the metal layer and the non-metal layer from delaminating due to high temperature and high pressure during the launch process.

[0008] The composite material lining layer is a carbon fiber layer, and is bonded to the buffer bonding layer and the composite material structural layer respectively by tough epoxy resin glue; it is used for the airtightness of the non-metallic layer during launch, and is a high-resin content layer formed by combining high-density carbon fiber and modified high-toughness epoxy resin.

[0009] Furthermore, the composite material structure layer described in the utility model is a carbon fiber layer pre-impregnated with high temperature resistant epoxy resin; the composite material structure layer is the main load-bearing layer, which is pre-impregnated continuously at multiple angles and multiple levels.

[0010] Furthermore, the outer sealing layer described in the utility model is a high-temperature epoxy resin layer, which prevents the cylinder from aging and performance degradation due to environmental changes.

[0011] Furthermore, the buffer bonding layer described in the utility model is a high-toughness, high-strength resin film.

[0012] Furthermore, the metal lining layer described in the utility model is formed by rolling and welding a thick-walled metal tube or plate, and is turned or cold drawn to achieve the required size.

[0013] The beneficial effects of the utility model are: solving the defects existing in the background technology and having the following advantages:

[0014] 1. Compared with the cylinder structure in the prior art, the utility model uses the metal lining layer to bear the gas scouring during the launch, which can better protect the cylinder mechanism;

[0015] 2. Compared with the steel structure used in most of the prior art, the cylinder structure of the utility model can reduce the weight by 30%-50%, and can easily meet the weight requirements in the design and processing process;

[0016] 3. The cylinder body of the utility model can fully combine and give play to the strength and heat resistance of metal and the light weight and high strength performance of composite materials, and can perfectly replace the metal structure cylinder body and composite material cylinder body in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0018] In the figure: 1. Metal lining layer, 2. Buffer bonding layer, 3. Composite material lining layer, 4. Composite material structural layer, 5. External sealing layer. DETAILED DESCRIPTION

[0019] Now the utility model is further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0020] like Figure 1 A metal and composite material formed cylinder structure is shown, and the cylinder wall of the cylinder includes a metal lining layer 1, a buffer bonding layer 2, a composite material lining layer 3, a composite material structure layer 4 and an outer sealing layer 5 from the inside to the outside; the metal lining layer is used to bear the high temperature and high pressure during the launch process. The metal lining layer is formed by drawing to ensure the inner hole size, roundness, straightness, and the outer surface is roughened.

[0021] The buffer bonding layer 2 is bonded to the metal lining layer 1 and the composite material lining layer 3 respectively by tough epoxy resin adhesive, thereby ensuring the bonding strength of the metal lining layer composite material and preventing the metal layer and the non-metal layer from delaminating due to high temperature and high pressure during the launch process.

[0022] The composite material lining layer 3 is a carbon fiber layer, and is bonded to the buffer bonding layer 2 and the composite material structure layer 4 respectively by tough epoxy resin glue; it is used for the airtightness of the non-metallic layer during launching, and is a high-resin content layer formed by combining high-density carbon fiber and modified high-toughness epoxy resin.

[0023] Among them, the composite material structure layer 4 is a carbon fiber layer pre-impregnated with high temperature resistant epoxy resin; the composite material structure layer is the main load-bearing layer, which adopts multi-angle and multi-level continuous pre-impregnation, and the resin content of the carbon fiber surface felt is required to be more than 90% during compounding.

[0024] The outer sealing layer 5 is a high-temperature epoxy resin layer, which is connected to the inner layer by resin and adopts a high-toughness, high-strength, UV-resistant resin film to prevent the cylinder from aging and performance degradation due to environmental changes.

[0025] The buffer bonding layer 2 is a high-toughness, high-strength resin film. The metal lining layer 1 is formed by rolling and welding a thick-walled metal tube or plate, and is machined or cold-drawn to a required size.

[0026] The utility model adopts the combination of metal structure and composite material structure to build a new cylinder structure. Compared with the existing technology, it has the ability to withstand high temperature and high pressure while being light in weight and having good performance, and can replace traditional metal structure cylinders and composite material cylinders.

[0027] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. A metal and composite material forming cylinder structure, characterized in that: The cylinder wall of the cylinder barrel comprises, from the inside to the outside, a metal lining layer (1), a buffer bonding layer (2), a composite material lining layer (3), a composite material structural layer (4) and an outer sealing layer (5); The buffer bonding layer (2) is bonded to the metal lining layer (1) and the composite material lining layer (3) respectively by using tough epoxy resin adhesive; The composite material lining layer (3) is a carbon fiber layer and is respectively bonded to the buffer bonding layer (2) and the composite material structural layer (4) by tough epoxy resin glue.

2. A metal and composite material forming cylinder structure as claimed in claim 1, characterized in that: The composite material structural layer (4) is a carbon fiber layer pre-impregnated with high temperature resistant epoxy resin.

3. A metal and composite material forming cylinder structure as claimed in claim 1, characterized in that: The outer sealing layer (5) is a high-temperature epoxy resin layer.

4. A metal and composite material forming cylinder structure as claimed in claim 1, characterized in that: The buffer bonding layer (2) is a resin film layer.

5. The metal and composite material forming cylinder structure according to claim 1, characterized in that: The metal lining layer (1) is formed by rolling and welding a thick-walled metal tube or plate.

Images