Cartridge support structure of armor-piercing bullet

Abstract

The utility model discloses an armor-piercing bullet support structure, which comprises a plurality of support petals and a plurality of metal plates, the support petals are made of carbon fiber composite materials and are arranged in an arc shape, the plurality of support petals are combined in an annular shape, and the metal plates are bonded on two sides of each support petals. And ring grooves which are communicated with each other are formed in the inner sides of the supporting petals and the metal plates. The sabot has the advantages that the sabot structure is jointly formed by arranging the sabot petals made of the carbon fiber composite materials and matching the sabot petals with the metal plates, the structural strength and torsional rigidity of the sabot can be guaranteed, the weight of the sabot can be reduced, light weight of the sabot is achieved, and meanwhile good compression strength is kept.

Description

Technical Field

[0001] The utility model relates to the field of sabot manufacturing, and particularly relates to a sabot structure of an armor-piercing projectile. Background Art

[0002] The sabot is a key component of a sabot-piercing armor-piercing projectile. The widely used sabot is a saddle-shaped structure evenly divided into three petals along its longitudinal axis. The caliber of the sabot is the same as that of the cannon. The armor-piercing projectile is made into a slender rod shape. After leaving the barrel, the sabot automatically falls off due to the action of resistance, and the projectile core continues to fly towards the target along the direction pointed by the barrel.

[0003] The function of the sabot is to obtain the energy released by the burning of the propellant and transfer as much energy as possible to the projectile core. Obviously, the lighter the mass of the sabot, the better. The traditional sabot of the armor-piercing projectile usually uses aluminum alloy material or carbon fiber composite material. The aluminum alloy material has good anti-torsion stiffness but is heavy, while the carbon fiber composite material is light but has insufficient anti-torsion stiffness and needs to be improved. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a sabot structure of an armor-piercing projectile, which has the effect of both ensuring anti-torsion stiffness and reducing weight.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A sabot structure of an armor-piercing projectile includes a plurality of petals and a plurality of metal plates. The petals are made of carbon fiber composite material and are arranged in an arc shape. The plurality of petals are combined in a ring shape. The metal plates are adhesively arranged on both sides of each petal. Ring grooves that communicate with each other are arranged on the inner sides of the petals and the metal plates.

[0006] The utility model can be further configured in a preferred example as follows: A plurality of insertion rods are arranged at intervals on the metal plate. Insertion holes are arranged on both sides of the petal. Insertion tubes for the insertion rods to insert are embedded in the insertion holes. A hemispherical clamping head is arranged at the end of the insertion rod, and a clamping ring for clamping the clamping head is arranged on the inner wall of the insertion tube.

[0007] The utility model can be further configured in a preferred example as follows: A plurality of locking rings are arranged on the outer wall of the insertion tube, and locking grooves for the locking rings to be embedded are arranged on the inner wall of the insertion hole.

[0008] The utility model can be further configured in a preferred example as follows: The locking ring is arranged to incline outwards, and the locking groove fits with the locking ring.

[0009] The utility model can be further configured in a preferred example as follows: A convex platform is arranged on the back side of the metal plate, and grooves for the convex platform to be embedded are arranged on both sides of the petal.

[0010] In a preferred embodiment, the present utility model can be further configured such that: the cross-section of the metal plate is fan-shaped and arranged with a narrower inner part and a wider outer part.

[0011] In a preferred embodiment, the present utility model can be further configured such that: the radian of the metal plate is 3 - 5°.

[0012] In a preferred embodiment, the present utility model can be further configured such that: the material of the metal plate is steel plate, titanium alloy, aluminum alloy or magnesium alloy.

[0013] In summary, the present utility model has the following beneficial effects:

[0014] 1. By setting the petal supported by carbon fiber composite material and the metal plate together to form the sabot structure, it can not only ensure the structural strength and anti-torsion stiffness of the sabot, but also reduce the weight of the sabot, realize the lightweight of the sabot, and at the same time maintain good pressure resistance.

[0015] 2. By adopting the bonding and mechanical structure to fix between the petal and the metal plate, the connection strength between the two is increased, and the pressure resistance and anti-torsion stiffness of the whole sabot are improved.

[0016] 3. By setting the fan-shaped metal plate, when multiple petals are combined with each other, an annular structure can be formed, and at the same time, the pressure resistance and anti-torsion stiffness of the whole sabot can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the structural schematic diagram of the embodiment;

[0018] Figure 2 is the internal structural schematic diagram of the embodiment.

[0019] Reference numerals: 1, petal; 2, metal plate; 3, annular groove; 4, boss; 5, groove; 6, insertion rod; 61, chuck; 7, insertion hole; 71, locking groove; 8, insertion tube; 81, snap ring; 82, locking ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] As Figure 1 , Figure 2 shown, a sabot structure of an armor-piercing projectile includes a plurality of petals 1 and a plurality of metal plates 2. The petals 1 are made of carbon fiber composite material and are arranged in an arc shape. The plurality of petals 1 are annularly combined to form a circular ring shape.

[0022] As Figure 1 , Figure 2As shown, the material of the metal plate 2 is steel plate, titanium alloy, aluminum alloy or magnesium alloy. The metal plate 2 is adhesively arranged on both sides of each petal 1, and annular grooves 3 communicating with each other are arranged on the inner sides of the petal 1 and the metal plate 2.

[0023] As Figure 1 , Figure 2 shown, a boss 4 is arranged on the back side of the metal plate 2, and grooves 5 for the boss 4 to be embedded are arranged on both sides of the petal 1, so as to realize the stable connection between the metal plate 2 and the petal 1, avoid voids at the connection position of the two, and thus ensure the stable operation of the petal 1.

[0024] As Figure 1 , Figure 2 shown, the cross section of the metal plate 2 is fan-shaped, and it is arranged with a narrow inner side and a wide outer side, and the radian of the metal plate 2 is 3-5°, so that when multiple petals 1 are combined with each other, they can fit together to form an annular structure, and at the same time, the pressure resistance strength and torsional stiffness of the whole sabot can be improved.

[0025] Therefore, by setting the petal 1 made of carbon fiber composite material and the metal plate 2 together to form the sabot structure, it can not only ensure the structural strength and torsional stiffness of the sabot, but also reduce the weight of the sabot, realize the lightweight of the sabot, and at the same time maintain good pressure resistance strength.

[0026] As Figure 1 , Figure 2 shown, a plurality of insertion rods 6 are arranged on the metal plate 2 at intervals, insertion holes 7 are arranged on both sides of the petal 1, and insertion tubes 8 for the insertion rods 6 to be inserted are embedded in the insertion holes 7. A hemispherical clamping head 61 is arranged at the end of the insertion rod 6, and a clamping ring 81 for the clamping head 61 to be clamped is arranged on the inner wall of the insertion tube 8.

[0027] Therefore, in the process of combining the metal plate 2 and the petal 1, the fixation between the petal 1 and the metal plate 2 is realized by adopting adhesive bonding and mechanical structure, the connection strength between the two is increased, and the pressure resistance strength and torsional stiffness of the whole sabot are improved.

[0028] As Figure 1 , Figure 2 shown, multiple locking rings 82 are arranged on the outer wall of the insertion tube 8, and locking grooves 71 for the locking rings 82 to be embedded are arranged on the inner wall of the insertion hole 7, so as to realize the clamping and fixation between the insertion tube 8 and the petal 1 and increase the stability. The locking rings 82 are arranged obliquely outwards, and the locking grooves 71 are fitted with the locking rings 82. Therefore, when the insertion tube 8 is pressed into the petal 1, the outward sliding of the insertion tube 8 can be restricted, and the connection stability between the two is increased.

[0029] The specific embodiments are only explanations of the present utility model, and they do not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A sabot structure of an armor-piercing projectile, characterized in that: It includes a plurality of supporting petals (1) and a plurality of metal plates (2). The supporting petals (1) are made of carbon fiber composite material and are arranged in an arc shape. The plurality of supporting petals (1) are combined in a ring shape. The metal plates (2) are adhesively arranged on both sides of each supporting petal (1). An annular groove (3) that communicates with each other is arranged on the inner sides of the supporting petals (1) and the metal plates (2).

2. The sabot structure of an armor-piercing projectile according to claim 1, characterized in that: A plurality of insertion rods (6) are arranged at intervals on the metal plate (2). Insertion holes (7) are arranged on both sides of the supporting petal (1). An insertion tube (8) for the insertion rod (6) to insert into is embedded in the insertion hole (7). A hemispherical clamping head (61) is arranged at the end of the insertion rod (6). A clamping ring (81) for the clamping head (61) to be clamped is arranged on the inner wall of the insertion tube (8).

3. The sabot structure of an armor-piercing projectile according to claim 2, characterized in that: Multiple locking rings (82) are arranged on the outer wall of the insertion tube (8). A locking groove (71) for the locking ring (82) to be embedded in is arranged on the inner wall of the insertion hole (7).

4. The sabot structure of an armor-piercing projectile according to claim 3, characterized in that: The locking ring (82) is inclined outward. The locking groove (71) fits with the locking ring (82).

5. The sabot structure of an armor-piercing projectile according to claim 1, characterized in that: A boss (4) is arranged on the back side of the metal plate (2). Grooves (5) for the boss (4) to be embedded in are arranged on both sides of the supporting petal (1).

6. The sabot structure of an armor-piercing projectile according to claim 1, characterized in that: The cross section of the metal plate (2) is fan-shaped and is arranged with a narrower inner part and a wider outer part.

7. The sabot structure of an armor-piercing projectile according to claim 6, characterized in that: The radian of the metal plate (2) is 3 - 5°.

8. The sabot structure of an armor-piercing projectile according to claim 1, characterized in that: The material of the metal plate (2) is steel plate or titanium alloy or aluminum alloy or magnesium alloy.

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