Rocket tube sleeve based on pultrusion winding process

Abstract

The utility model belongs to the technical field of military engineering, and particularly relates to a rocket tube sleeve based on a pultrusion winding process, which comprises an outer lining layer, a first longitudinal fiber layer is arranged at the bottom of the outer lining layer; a first winding fiber layer is arranged at the bottom of the first longitudinal fiber layer; a second longitudinal fiber layer is arranged at the bottom of the first winding fiber layer; a second winding fiber layer is arranged at the bottom of the second longitudinal fiber layer; a third longitudinal fiber layer is arranged at the bottom of the second winding fiber layer; a lining layer is arranged at the bottom of the third longitudinal fiber layer; the lining layer is mainly composed of fiber cloth and continuous fiber felt and is used for improving the pressure resistance of the interior of the rocket tube sleeve and improving the surface smoothness of the interior of the rocket tube sleeve, and the first longitudinal fiber layer and the second longitudinal fiber layer are mainly used for achieving the effect of a process layer. In addition, the performance of longitudinal bending resistance, stretching resistance and the like of the rocket launcher casing pipe is greatly improved, and the outer lining layer is mainly composed of composite insulation cloth and plays a role in reducing cracking of the rocket launcher casing pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of military engineering, in particular to a rocket launcher casing based on a pultrusion winding process. Background Art

[0002] The rocket launcher tube, also known as the rocket launcher tube, is an important part of the rocket launcher weapon system. It is mainly used to fix and support the rocket launcher to provide a stable shooting platform, thereby ensuring that the rocket can be accurately launched.

[0003] In the prior art, since the rocket launcher has the characteristics of high temperature and high pressure inside during the launching process, the current high-pressure rocket launcher casing ply design mostly adopts a winding process and is made of a high-temperature resistant epoxy resin system.

[0004] During long-term use and observation, it was found that the main problems of the rocket launcher casing produced by the current winding process are: 1. The fiber direction is mainly wound, lacking axial force, resulting in poor bending resistance of the product. Therefore, the wall thickness of the product needs to reach a certain thickness, which increases the weight of the product; 2. The product production efficiency is relatively low and the production environment is not friendly; 3. The winding process has extremely high requirements on the viscosity of the resin system. If it is too high, it cannot be penetrated, and the cost of epoxy resin with low viscosity is relatively high; 4. During the winding process, the two ends need to be cut and the outer circle needs to be further processed, which further increases the cost.

[0005] To this end, the utility model provides a rocket launcher casing based on a pultrusion winding process. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the problems raised in the background technology, a rocket launcher casing based on a pultrusion winding process is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a rocket launcher casing based on a pultrusion winding process, comprising an outer lining layer; a first longitudinal fiber layer is provided at the bottom of the outer lining layer; a first winding fiber layer is provided at the bottom of the first longitudinal fiber layer; a second longitudinal fiber layer is provided at the bottom of the first winding fiber layer; a second winding fiber layer is provided at the bottom of the second longitudinal fiber layer; a third longitudinal fiber layer is provided at the bottom of the second winding fiber layer; an inner lining layer is provided at the bottom of the third longitudinal fiber layer; the inner lining layer is mainly composed of fiber cloth and continuous fiber felt, and its function is to increase the pressure resistance of the inside of the rocket launcher casing and improve the surface smoothness of the inside of the rocket launcher casing; the first longitudinal fiber layer and the second longitudinal fiber layer mainly serve as process layers, and also greatly increase the longitudinal bending resistance and tensile properties of the rocket launcher casing; the outer lining layer is mainly composed of composite insulating cloth, which plays a role in reducing the cracking of the rocket launcher casing.

[0008] Preferably, the first wound fiber layer and the second wound fiber layer are formed by two groups of different fibers being wound in opposite directions.

[0009] Preferably, a first multi-axial cloth is provided between the outer lining layer and the first longitudinal fiber layer; a second multi-axial cloth is provided between the second longitudinal fiber layer and the second winding fiber layer; a third multi-axial cloth is provided between the third longitudinal fiber layer and the inner lining layer; this step can improve the overall performance of the rocket launcher casing and further reduce the cracking of the rocket launcher casing by providing the first multi-axial cloth between the outer lining layer and the first longitudinal fiber layer, the second multi-axial cloth between the second longitudinal fiber layer and the second winding fiber layer, and the third multi-axial cloth between the third longitudinal fiber layer and the inner lining layer.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The rocket launcher casing based on the pultrusion winding process described in the utility model has excellent axial bending and tensile resistance due to the longitudinal fibers. Compared with the existing rocket launcher casing, the strength is more than doubled. At the same time, a special process is used to further improve the circumferential strength of the rocket launcher casing.

[0012] 2. The utility model discloses a rocket launcher casing based on the pultrusion and winding process, which has relatively high production efficiency and is environmentally friendly.

[0013] 3. The utility model describes a rocket launcher casing based on a pultrusion winding process, the winding process does not have high requirements on the viscosity of the resin system, and no bubbles will appear inside the rocket launcher casing.

[0014] 4. The rocket launcher casing based on the pultrusion and winding process described in the utility model has a low resin content and a low unit price of resin. In addition, the pultrusion and winding process allows for a resin formula with a higher viscosity and better process compatibility. These characteristics further reduce the cost of the product.

[0015] 5. The utility model discloses a rocket launcher casing based on the pultrusion and winding process, which does not produce scraps during the production process and avoids waste.

[0016] 6. The rocket launcher casing based on the pultrusion winding process described in the utility model has excellent mechanical properties and can optimize the design of the rocket launcher casing, which is convenient for carrying and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a stereogram in the utility model;

[0019] Figure 2It is a structural schematic diagram of the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the winding method in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the winding method in the utility model;

[0022] Legend:

[0023] 1. Outer lining layer; 2. First multi-axial fabric; 3. First longitudinal fiber layer; 4. First winding fiber layer; 5. Second longitudinal fiber layer; 6. Second multi-axial fabric; 7. Second winding fiber layer; 8. Third longitudinal fiber layer; 9. Third multi-axial fabric; 10. Inner lining layer. DETAILED DESCRIPTION

[0024] 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 of 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.

[0025] Specific examples are given below.

[0026] like Figure 1 to Figure 2 As shown, a rocket launcher sleeve based on the pultrusion winding process described in an embodiment of the utility model includes an outer lining layer 1; a first longitudinal fiber layer 3 is provided at the bottom of the outer lining layer 1; a first winding fiber layer 4 is provided at the bottom of the first longitudinal fiber layer 3; a second longitudinal fiber layer 5 is provided at the bottom of the first winding fiber layer 4; a second winding fiber layer 7 is provided at the bottom of the second longitudinal fiber layer 5; a third longitudinal fiber layer 8 is provided at the bottom of the second winding fiber layer 7; an inner lining layer 10 is provided at the bottom of the third longitudinal fiber layer 8; the first winding fiber layer 4 and the second winding fiber layer 7 are formed by two groups of different fibers being wound in reverse; when working, the inner lining layer 10 is mainly composed of fiber cloth and continuous fiber felt, and its function is to increase the pressure resistance inside the rocket launcher sleeve and improve the surface finish inside the rocket launcher sleeve. The first longitudinal fiber layer 3 and the second longitudinal fiber layer 5 mainly play the role of the process layer, and also greatly increase the longitudinal bending resistance and tensile properties of the rocket launcher sleeve. The outer lining layer 1 is mainly composed of composite insulating cloth, which plays a role in reducing the cracking of the rocket launcher sleeve.

[0027] Further, such as Figure 1 to Figure 2As shown, a first multi-axial cloth 2 is provided between the outer lining layer 1 and the first longitudinal fiber layer 3; a second multi-axial cloth 6 is provided between the second longitudinal fiber layer 5 and the second winding fiber layer 7; a third multi-axial cloth 9 is provided between the third longitudinal fiber layer 8 and the inner lining layer 10; this step can improve the overall performance of the rocket launcher casing and further reduce the cracking of the rocket launcher casing by providing the first multi-axial cloth 2 between the outer lining layer 1 and the first longitudinal fiber layer 3, the second multi-axial cloth 6 between the second longitudinal fiber layer 5 and the second winding fiber layer 7, and the third multi-axial cloth 9 between the third longitudinal fiber layer 8 and the inner lining layer 10.

[0028] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A rocket launcher casing based on a pultrusion winding process, comprising an outer lining layer (1); characterized in that: The outer lining layer (1) has a first longitudinal fiber layer (3) at the bottom; the first longitudinal fiber layer (3) has a first winding fiber layer (4) at the bottom; the first winding fiber layer (4) has a second longitudinal fiber layer (5) at the bottom; the second longitudinal fiber layer (5) has a second winding fiber layer (7) at the bottom; the second winding fiber layer (7) has a third longitudinal fiber layer (8) at the bottom; and the third longitudinal fiber layer (8) has an inner lining layer (10) at the bottom.

2. According to claim 1, a rocket launcher sleeve based on pultrusion winding process is characterized in that: The first wound fiber layer (4) and the second wound fiber layer (7) are formed by two groups of different fibers being wound in opposite directions.

3. The rocket launcher sleeve based on the pultrusion winding process according to claim 2 is characterized in that: A first multi-axial fabric (2) is provided between the outer lining layer (1) and the first longitudinal fiber layer (3); a second multi-axial fabric (6) is provided between the second longitudinal fiber layer (5) and the second winding fiber layer (7); and a third multi-axial fabric (9) is provided between the third longitudinal fiber layer (8) and the inner lining layer (10).

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