High-power armor-piercing bullet based on shaped charge principle

Abstract

The invention particularly discloses a high-power armor-piercing bullet based on a shaped charge principle, and relates to the technical field of armor-piercing bullets. The armor penetrating bullet comprises a bullet head shell, a baffle, a bottom plate and a bottom screw, the baffle is arranged on the upper portion of the interior of the bullet head shell, the bottom plate is arranged below the baffle, and the baffle and the bottom plate are connected with the bullet head shell in an interference fit mode; the bottom screw is arranged below the bullet shell and connected with the bullet shell in a threaded connection mode. A firing pin seat is arranged on the bottom screw in a sticking manner, and a firing pin is arranged in the firing pin seat; a through hole is formed in the middle of the bottom plate, ignition powder is arranged in the through hole and below the through hole, initiating explosive is arranged above the bottom plate, and a shaped charge liner of an inverted conical structure and charge are arranged between the baffle and the bottom plate. Compared with a traditional armor-piercing bullet, the armor-piercing bullet has higher penetration capacity and can cope with more armored targets.

Description

Technical Field

[0001] The invention relates to the technical field of armor-piercing bullets, in particular to a high-power armor-piercing bullet based on the shaped charge principle. Background Art

[0002] In today's military technology, armor-piercing bullets, as important offensive weapons, play an indispensable role in war. At present, armor-piercing bullets mainly rely on high-speed bullets to hit the target, penetrate the armor, and then cause direct damage to the target. When the projectile successfully penetrates the vehicle's protective armor, the core will break into aftereffect fragments, posing a further threat to the vehicle's internal members. With its powerful power, this type of armor-piercing bullet can effectively strike enemy light armored vehicles and other targets on the battlefield, becoming a powerful equipment in military operations.

[0003] However, with the rapid development of military technology, the target armor faced in modern warfare environments has become increasingly complex and diverse. On the one hand, new high-strength, multi-layered armor has continued to emerge, greatly increasing the difficulty of armor penetration; on the other hand, traditional armor-piercing bullets mainly rely on their own huge kinetic energy to achieve armor penetration, and the speed will continue to decay within the effective range. When the range increases, the armor-piercing ability will be greatly weakened or even lost. At present, there are limited ways to improve armor-piercing capabilities, and usually they can only be improved by optimizing structural design, selecting new materials, and increasing kinetic energy. However, these improvement measures are often limited by technical bottlenecks and cost factors, and the development process is relatively slow. It is difficult to keep up with the development of new armor. When facing new armor, the armor-piercing effect is greatly reduced.

[0004] In addition, the design of new high-power armor-piercing bullets based on the principle of shaped charge faces many challenges. On the one hand, the bullet needs to rotate at high speed during shooting to maintain flight stability, but the cone-shaped cover explosive inside the armor-piercing bullet based on the principle of shaped charge will cause the energy generated by the explosion to disperse when it rotates at high speed, and the power of the metal jet will be greatly reduced, seriously affecting the armor-piercing effect. Therefore, it is crucial to design a buffer structure that can effectively reduce the rotation of the explosive. On the other hand, unlike the traditional method of penetrating the target by relying on kinetic energy, the high-power armor-piercing bullet based on the principle of shaped charge needs to be ignited at the moment of hitting the target, thereby emitting a high-temperature and high-speed metal jet to penetrate the target. This requires the design of a miniature multi-stage safety fuse to ensure that the armor-piercing bullet can be accurately ignited when hitting the target, while ensuring safety and giving full play to its powerful armor-piercing effectiveness. Summary of the invention

[0005] The purpose of the present invention is to propose a high-power armor-piercing bullet based on the principle of shaped charge. By designing explosives and metal covers of conical charge caps inside the armor-piercing bullet and utilizing the principle of shaped charge, the armor-piercing bullet can emit high-temperature, high-speed, high-power metal jets to achieve armor-piercing effect.

[0006] To achieve the above-mentioned purpose, the present invention proposes a high-power armor-piercing bullet based on the principle of shaped charge, including a bullet shell, a baffle, a bottom plate and a bottom screw, wherein the baffle is arranged at an upper position inside the bullet shell, and is fixedly connected to the bullet shell by an interference fit; the bottom plate is arranged inside the bullet shell, below the baffle, and is fixedly connected to the bullet shell by an interference fit; the bottom screw is arranged at the bottom of the bullet shell, and the bottom screw is divided into a screw rod and a screw head, the screw rod is provided with threads, and a shell bottom thread is arranged on the inner side of the bottom of the bullet shell, and the threads on the screw rod and the shell bottom threads are engaged with each other, thereby realizing the fixed connection between the bottom screw and the bullet shell.

[0007] Preferably, the screw rod has a cylindrical structure in the middle, and a firing pin seat is provided at the bottom position in the middle of the screw rod. The firing pin seat is fixedly connected to the bottom screw by means of adhesive connection.

[0008] Preferably, circular cavity one and circular cavity three are arranged in the vertical direction inside the firing pin seat, and circular cavity two is symmetrically arranged in the transverse direction, and the diameter of circular cavity one is greater than the diameter of circular cavity three.

[0009] Preferably, a firing pin is also provided inside the firing pin seat, and the firing pin consists of a firing pin head, a firing pin rod and a firing pin tail. The firing pin head is located inside the circular cavity three, the firing pin tail is located inside the circular cavity one, and the firing pin rod is located inside the circular cavities one and three.

[0010] Preferably, a spring 1 is provided under the firing pin, and the spring 1 is fixedly connected to the firing pin by welding.

[0011] Preferably, a spring 2 and a rotor are disposed inside the circular cavity 2, one end of the spring 2 is fixedly connected to the firing pin seat by welding, and the other end of the spring 2 is fixedly connected to the rotor by welding, and the rotor protrudes out of the circular cavity 2.

[0012] Preferably, a circular hole is opened in the middle of the bottom plate, ignition powder is arranged inside and below the hole, and explosive powder is arranged above the bottom plate. The ignition powder is sensitive explosive powder, and the explosive powder is high-energy explosive powder.

[0013] Preferably, a charge liner is provided between the base plate and the baffle plate. The charge liner is an inverted conical structure, the bottom circular surface of which is in contact with the baffle plate, and the material is high-conductivity oxygen-free copper.

[0014] Preferably, the space between the bottom plate and the baffle is also filled with explosives, and the explosives are high-energy explosives.

[0015] Preferably, a cavity four is formed between the baffle and the top of the bullet shell.

[0016] Therefore, the present invention proposes a high-power armor-piercing bullet based on the shaped charge principle, and its beneficial effects are as follows: (1) Strong penetration capability: Based on the principle of shaped charge, armor-piercing bullets can launch high-temperature, high-speed, powerful metal jets. Compared with traditional armor-piercing bullets that rely on high kinetic energy to penetrate, the penetration capability is significantly enhanced when facing new types of armor, and it can effectively deal with more types of armored targets, thus improving the combat effectiveness of the weapon system.

[0017] (2) High safety and accuracy: The miniature multi-stage safety fuze design ensures that the armor-piercing bullet will ignite and release the metal jet only when it hits the target, greatly improving the safety during use and avoiding detonation under unexpected circumstances; at the same time, the precise ignition mechanism ensures that the metal jet can accurately act on the target, improving the accuracy of killing.

[0018] (3) Stable power output: The special isolation buffer structure effectively solves the problem of power loss caused by high-speed rotation of explosives, allowing the armor-piercing bullet to maintain stable flight while maintaining strong armor-piercing power, thus ensuring the stability of combat performance.

[0019] (4) Not affected by range, stable power: The speed of traditional armor-piercing bullets will continue to decay within the effective range. When the range increases to a certain distance, the armor-piercing ability will be greatly weakened or even lost. The armor-piercing bullet of the present application relies on the high-speed jet formed after the explosion after hitting the target to penetrate the armor. It is not affected by the speed decay caused by the flight distance. It still has a strong armor-piercing ability when shooting at a long distance, greatly expanding the effective combat range.

[0020] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of a high-power armor-piercing bullet based on the shaped charge principle of the present invention; Figure 2 This is a bottom cross-sectional view of a high-power armor-piercing bullet based on the shaped charge principle of the present invention; Figure 3 This is a schematic diagram of the result of a 10 mm diameter shaped charge armor-piercing bullet penetrating an aluminum alloy target plate in Example 2 of the present invention; Figure 4 This is a schematic diagram of the result of a 6.5 mm diameter shaped charge armor-piercing bullet penetrating an aluminum alloy target plate in Example 2 of the present invention.

[0022] Reference numerals 1. Warhead shell; 2. Baffle; 3. Charge liner; 4. Bottom plate; 5. Firing pin seat; 6. Bottom screw; 7. Ignition powder; 8. Explosive powder; 9. Charge; 10. Circular cavity one; 11. Spring one; 12. Circular cavity two; 13. Spring two; 14. Rotor; 15. Firing pin; 16. Circular cavity three; 17. Cavity four; 18. Shell bottom thread; 19. Screw; 20. Screw head. DETAILED DESCRIPTION

[0023] In order to make the technical solutions, advantages and purposes of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly and completely described below. The described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of this application.

[0024] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0025] Embodiment 1 like Figure 1-2 As shown, the present invention proposes a high-power armor-piercing bullet based on the principle of shaped charge, including a bullet shell 1, a baffle 2, a bottom plate 4 and a bottom screw 6; the bullet shell 1 is made of copper, which can bear the internal structure, maintain the aerodynamic shape, allow the bullet to enter the gun chamber smoothly and guide the rotation so that the projectile has rotational stability; the baffle 2 is arranged at the upper position inside the bullet shell 1, and is fixedly connected to the bullet shell 1 by an interference fit, the bottom plate 4 is arranged inside the bullet shell 1, below the baffle 2, and is fixedly connected to the bullet shell 1 by an interference fit, and the bottom screw 6 is arranged at the bottom of the bullet shell 1, and is fixedly connected to the bullet shell 1 by a threaded connection.

[0026] The bottom screw 6 is composed of a screw rod 19 and a screw head 20. The screw rod 19 is provided with a thread. The inner side of the bottom of the bullet shell 1 is provided with a shell bottom thread 18. The thread on the screw rod 19 and the shell bottom thread 18 are engaged with each other, thereby realizing a fixed connection between the bullet shell 1 and the bottom screw 6.

[0027] The middle of the screw 19 is a cylindrical structure, and a firing pin seat 5 is arranged at the bottom of the middle cylinder of the screw 19, and the firing pin seat 5 is fixedly connected to the bottom screw 6 by gluing; a circular cavity 10 and a circular cavity 3 16 are arranged vertically inside the firing pin seat 5, and a circular cavity 2 12 is symmetrically arranged in the horizontal direction, and the diameter of the circular cavity 10 is larger than the diameter of the circular cavity 3 16; A firing pin 15 is arranged inside circular cavity 10 and circular cavity three 16. The firing pin 15 consists of a firing pin head, a firing pin rod and a firing pin tail. The firing pin head is located inside circular cavity three 16, the firing pin tail is located inside circular cavity 10, and the firing pin rod is located inside circular cavity 10 and circular cavity three 16, thereby ensuring that the firing pin 15 is always in the correct firing position inside the firing pin seat 5; a spring 11 is arranged below the firing pin 15 by welding, and the spring 11 can support the firing pin 15 to move forward when the bullet is released.

[0028] A spring 13 and a rotor 14 are arranged inside the circular cavity 12. One end of the spring 13 is fixedly connected to the firing pin seat 5 by welding, and the other end of the spring 13 is fixedly connected to the rotor 14 by welding. The rotor 14 protrudes out of the circular cavity 12 and can limit the movement of the firing pin 15 in the safety state.

[0029] A circular hole is provided in the middle of the bottom plate 4, and ignition powder 7 is arranged inside and below the circular hole, and explosive 8 is arranged above the bottom plate. The ignition powder 7 is a sensitive explosive that can ignite the explosive 8, and the explosive 8 is a high-energy explosive that can detonate the charge 9; a charge liner 3 is also provided between the bottom plate 4 and the baffle 2. The charge liner 3 is an inverted conical structure, and its bottom circular surface is in contact with the baffle 2. It is made of high-conductivity oxygen-free copper and can form an ultra-high-speed jet, which plays a major role in damaging the target armor; the charge 9 is also filled between the bottom plate 4 and the baffle 2. The charge 9 can fix the charge liner 3. When detonated by the explosive 8, an explosion occurs to form the charge liner 3 into a high-speed jet and launch it out; wherein, the baffle 2 is made of aluminum alloy, which can fix the charge liner 3 and the charge 9, and the bottom plate 4 is made of aluminum alloy, which is used to fix the charge 9, the explosive 8 and the ignition powder 7.

[0030] The area between the baffle 2 and the top of the warhead shell 1 is a cavity 29 17, which can increase the penetration power, achieve a specific killing effect, and improve the aerodynamic performance to a certain extent.

[0031] Working principle: Service state: Spring 2 13 and rotor 14 block firing pin 15, restricting the movement of firing pin 15, and the bullet is in a safe insurance state; Firing state: the bullet shell 1 is made of copper with good ductility. The bullet is easily squeezed into the gun barrel under the action of the gunpowder gas generated by the propellant, and rotates under the lateral force of the rifling. The rotation speed at the muzzle can reach 10,000 to 20,000 revolutions per second; Flight state: the spring 2 13 and the rotor 14 move under the centrifugal force generated by the high-speed rotation of the bullet, releasing the firing pin 15, and the bullet is in the released safety state; When the bullet hits the target, the huge impact force causes the firing pin 15 to move instantly, hit and ignite the ignition charge 7, the ignition charge 7 ignites the detonator 8, the detonator 8 detonates the charge 9, and the explosive load generated by the charge 9 causes the charge liner 3 to collapse and flow to form a high-speed jet with a speed of 4000-7000 m / s. The high-speed jet penetrates and damages the target; Effect: Based on the principle of shaped charge, it relies on the high-speed jet formed after hitting the target to penetrate armor. Unlike traditional bullets that rely on kinetic energy, its armor-piercing power is not affected by the speed attenuation caused by the range. Even if it flies to a longer distance, it can still maintain stable armor-piercing ability and has strong adaptability to various types of armored targets.

[0032] Embodiment 2 like Figure 3 As shown, the result of the jet formed by a 10mm diameter shaped charge (which can be applied to 12.7mm armor-piercing bullets, and the liner material is copper) penetrating the 2A12 aluminum alloy target plate, the penetration depth is about 32.5mm.

[0033] like Figure 4 As shown, the result of the jet formed by the 6.5mm diameter shaped charge (which can be applied to 7.62mm armor-piercing bullets, and the liner material is copper) penetrating the 2A12 aluminum alloy target plate, the penetration depth is about 18.1mm.

[0034] It is worth noting that the contents not elaborated in detail in the present invention are all prior art and are well known to those skilled in the art.

[0035] Therefore, the present invention provides a high-power armor-piercing bullet based on the principle of shaped charge. By designing explosives and metal covers of conical charge caps inside the armor-piercing bullet and utilizing the principle of shaped charge, the armor-piercing bullet can emit high-temperature, high-speed, high-power metal jets after hitting the target to achieve the armor-piercing effect. At the same time, a miniature multi-stage safety fuze is designed to ensure that the armor-piercing bullet ignites and releases high-speed, high-temperature metal jets when contacting the target, thereby improving the safety and accuracy of the armor-piercing bullet.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A high-power armor-piercing bullet based on the principle of shaped charge, characterized in that: It includes a bullet shell, a baffle, a bottom plate and a bottom screw, wherein the baffle is arranged at an upper position inside the bullet shell and is fixedly connected to the bullet shell by an interference fit; the bottom plate is arranged inside the bullet shell, below the baffle, and is fixedly connected to the bullet shell by an interference fit; the bottom screw is arranged at the bottom of the bullet shell, and the bottom screw is divided into a screw rod and a screw head, the screw rod is provided with threads, and a shell bottom thread is arranged on the inner side of the bottom of the bullet shell, and the threads on the screw rod and the shell bottom thread are engaged with each other.

2. A high-power armor-piercing bullet based on the shaped charge principle according to claim 1, characterized in that: The screw rod has a cylindrical structure in the middle, and a firing pin seat is provided at the bottom position in the middle of the screw rod. The firing pin seat is fixedly connected to the bottom screw by means of adhesive connection.

3. A high-power armor-piercing bullet based on the shaped charge principle according to claim 1, characterized in that: A circular cavity one and a circular cavity three are arranged vertically inside the firing pin seat, and a circular cavity two is symmetrically arranged in the transverse direction. The diameter of the circular cavity one is greater than the diameter of the circular cavity three.

4. A high-power armor-piercing bullet based on the shaped charge principle according to claim 3, characterized in that: A firing pin is also provided inside the firing pin seat, and the firing pin consists of a firing pin head, a firing pin rod and a firing pin tail. The firing pin head is located inside the circular cavity three, the firing pin tail is located inside the circular cavity one, and the firing pin rod is located inside the circular cavities one and three.

5. A high-power armor-piercing bullet based on the shaped charge principle according to claim 4, characterized in that: A spring 1 is arranged under the firing pin, and the spring 1 is fixedly connected to the firing pin by welding.

6. A high-power armor-piercing bullet based on the shaped charge principle according to claim 3, characterized in that: A spring 2 and a rotor are disposed inside the circular cavity 2. One end of the spring 2 is fixedly connected to the firing pin seat by welding, and the other end of the spring 2 is fixedly connected to the rotor by welding. The rotor protrudes out of the circular cavity 2.

7. A high-power armor-piercing bullet based on the shaped charge principle according to claim 1, characterized in that: A circular hole is provided in the middle of the bottom plate, ignition powder is arranged inside and below the circular hole, and explosive powder is arranged above the bottom plate. The ignition powder is sensitive explosive powder, and the explosive powder is high-energy explosive powder.

8. The high-power armor-piercing bullet based on the shaped charge principle according to claim 1 is characterized in that: A charge liner is arranged between the bottom plate and the baffle. The charge liner is an inverted conical structure, the bottom circular surface is in contact with the baffle, and the material is high-conductivity oxygen-free copper.

9. A high-power armor-piercing bullet based on the shaped charge principle according to claim 1, characterized in that: Charges are also filled between the bottom plate and the baffle, and the charge is high-energy explosives.

10. A high-power armor-piercing bullet based on the shaped charge principle according to claim 1, characterized in that: A cavity 4 is formed between the baffle and the top of the bullet shell.

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