Novel aluminum alloy cartridge case applied to gun ammunition

Abstract

The utility model aims to provide the novel cartridge case which is simple in structure and light in weight and realizes the application of novel aluminum alloy materials to guns and ammunitions. The powder chamber comprises a powder chamber part and a base, the powder chamber part is an aluminum alloy shell, the base is an aluminum alloy seat body, the powder chamber part is connected with the base, a mounting hole and a fire transfer hole are formed in the base, a primer component is in threaded fit with the mounting hole, the mounting hole is communicated with the fire transfer hole, and the primer component is arranged in the mounting hole. And the flash holes are communicated with the inner cavity of the powder chamber part. The cartridge is applied to the technical field of cartridges.

Description

Technical Field

[0001] The utility model is applied to the technical field of ammunition cartridges, in particular to a novel aluminum alloy cartridge used for gun ammunition. Background Art

[0002] At present, except for high-precision sniper cartridges, most cartridges are made of low-carbon steel, which has the advantages of low cost and easy access to raw materials. However, the existing steel cartridges also have obvious disadvantages. Compared with copper materials, steel has weaker toughness, strength, and self-lubricating properties. In addition, it is heavier. The weight of the equipment directly affects the amount of ammunition, so it is also an important indicator in military equipment.

[0003] There is a patent document with a publication number of CN202793191U that proposes a bottleneck cartridge case, which is composed of a shell and a primer cavity seat, the primer cavity seat is welded to the inner bottom of the shell, the lower part of the primer cavity seat is provided with a primer cavity, the upper part of the primer cavity seat is welded to the inner wall of the shell through a connecting seat, and a filling cavity is formed between the primer cavity seat, the connecting seat and the shell. However, the shell, the connecting seat, and the primer cavity seat are all made of stainless steel, resulting in a relatively large weight of the entire cartridge case, and when the primer component is assembled in the primer cavity during the production process, if a welding process is adopted, the operation will be more troublesome and the work efficiency will be low. When the primer component or the shell is accidentally damaged, the entire structure must be discarded, which is relatively wasteful. If a new type of aluminum alloy cartridge that is simple in structure, light in weight, and can be detachably connected to the primer component and is applied to guns and ammunition can be designed, the above problems can be well solved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a new aluminum alloy cartridge for guns and ammunitions which has a simple structure, is light in weight and can be detachably connected to a primer component.

[0005] The technical solution adopted by the utility model is: the utility model comprises a chamber part and a base, the chamber part is an aluminum alloy shell, the base is an aluminum alloy seat body, the chamber part and the base are connected, the base is provided with a mounting hole and a fire transfer hole, the primer component is threadedly matched with the mounting hole, the mounting hole and the fire transfer hole are communicated, and the fire transfer hole and the inner cavity of the chamber part are communicated.

[0006] Furthermore, the chamber portion is an aluminum alloy shell.

[0007] Furthermore, the base is an aluminum alloy base.

[0008] Furthermore, a first annular protrusion and a second annular protrusion are provided on the outer wall of the base, and a positioning groove is provided between the first annular protrusion and the second annular protrusion.

[0009] Furthermore, the medicine chamber portion includes a main section, a transition section and a necked section, one end of the necked section is connected to one end of the transition section, the other end of the transition section is connected to one end of the main section, and the other end of the main section is connected to the base.

[0010] Furthermore, a limiting hole is provided on the base, and the limiting hole is communicated with the mounting hole.

[0011] The beneficial effects of the utility model are as follows: the utility model comprises a chamber part and a base connected to each other, the base is provided with a mounting hole, the primer part and the mounting hole are assembled by threaded matching, the operation is simple and convenient, the work efficiency is greatly improved, and if the primer part or the cartridge is accidentally damaged after assembly, the two can be quickly disassembled, and the intact parts can be recycled to avoid waste. In addition, the chamber part and the base are both made of aluminum alloy material, and their own weight is reduced by 50% compared with the steel cartridge, realizing the combat technical requirements of lightweight equipment, and the carrying capacity of the equipment is increased by nearly half, which greatly improves the battlefield survivability. The carrying capacity of vehicle-mounted and airborne equipment is increased by nearly half, which can effectively improve the battlefield survivability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a first-view stereogram of the utility model;

[0013] Figure 2 It is a second perspective stereogram of the utility model;

[0014] Figure 3 It is a cross-sectional view of the utility model. DETAILED DESCRIPTION

[0015] like Figures 1 to 3 As shown, in this embodiment, the utility model includes a chamber part and a base 1, the chamber part is an aluminum alloy shell, the base 1 is an aluminum alloy seat body, the chamber part and the base 1 are connected by using advanced metal integral forming technology, the base 1 is provided with a mounting hole 2 and a fire transfer hole 3, the primer is threadedly matched with the mounting hole 2, the mounting hole 2 is connected with the fire transfer hole 3, and the fire transfer hole 3 is connected with the inner cavity 4 of the chamber part. Among them, the propellant is placed in the inner cavity 4; the primer is an ignition product that is stimulated by inputting mechanical energy or electrical energy, and is used to output flames, and the flames pass through the fire transfer hole 3 to ignite the propellant.

[0016] The new aluminum alloy cartridge of the present application adopts 7A48 aluminum alloy material, selects new high-strength aluminum alloy 7A48 as the main material, cooperates with advanced processing technology and reasonable structural design, ceramic coating is applied to the outer surface of the product, and high-temperature ablation resistance treatment is applied to the inner surface. The small and medium-caliber cartridges realized not only meet the lightweight requirements of modern warfare, but also ensure that their mechanical properties meet the actual combat needs.

[0017] In this embodiment, the primer component and the mounting hole 2 are assembled by threaded engagement.

[0018] In this embodiment, the chamber portion is an aluminum alloy shell.

[0019] In this embodiment, the base 1 is an aluminum alloy base.

[0020] In this embodiment, the chamber portion and the base 1 are both made of aluminum alloy material, which reduces the weight of the entire cartridge by 2 / 3 compared to a traditional steel cartridge, meets the combat technical requirements of lightweight equipment, and increases the amount of ammunition carried by vehicle-mounted and airborne equipment by nearly half, which can effectively improve battlefield survivability.

[0021] In this embodiment, a first annular protrusion 5 and a second annular protrusion 6 are provided on the outer wall of the base 1, and a positioning groove 7 is provided between the first annular protrusion 5 and the second annular protrusion 6. The first annular protrusion 5 and the second annular protrusion 6 are both made of aluminum alloy; since a hook is provided inside the firearm, the hook is adapted to the groove 1, and when the firearm trigger is pressed to shoot, the hook is pressed to push the first annular protrusion 5 backward through mechanical transmission under the action of airflow recoil, thereby hooking out the entire cartridge, completing the shell ejection action.

[0022] In this embodiment, the medicine chamber portion includes a main section 8, a transition section 9 and a necking section 10, one end of the necking section 10 is connected to one end of the transition section 9, the other end of the transition section 9 is connected to one end of the main section 8, and the other end of the main section 8 is connected to the base 1.

[0023] In this embodiment, the base 1 is further provided with a limiting hole 11, which is connected to the mounting hole 2. The aperture of the limiting hole 11 is larger than the aperture of the mounting hole 2, and when the connecting column on the primer component is threadedly matched with the mounting hole 2, the limiting block on the primer component is adapted to the limiting hole 11.

Claims

1. A novel aluminum alloy cartridge for use in firearms and ammunition, comprising a chamber portion and a base (1), wherein the chamber portion is an aluminum alloy shell, and the base (1) is an aluminum alloy seat body, wherein the chamber portion and the base (1) are connected, and characterized in that: The base (1) is provided with a mounting hole (2) and a fire transfer hole (3); the primer component is threadedly engaged with the mounting hole (2); the mounting hole (2) and the fire transfer hole (3) are in communication; and the fire transfer hole (3) and the inner cavity (4) of the chamber are in communication.

2. The novel aluminum alloy cartridge for firearms and ammunition according to claim 1 is characterized in that: A first annular protrusion (5) and a second annular protrusion (6) are provided on the outer wall of the base (1), and a positioning groove (7) is provided between the first annular protrusion (5) and the second annular protrusion (6).

3. The novel aluminum alloy cartridge for firearms and ammunition according to claim 1 is characterized in that: The medicine chamber portion comprises a main body section (8), a transition section (9) and a necking section (10), one end of the necking section (10) is connected to one end of the transition section (9), the other end of the transition section (9) is connected to one end of the main body section (8), and the other end of the main body section (8) is connected to the base (1).

4. The novel aluminum alloy cartridge for firearms and ammunition according to claim 1 is characterized in that: The base (1) is also provided with a limiting hole (11), and the limiting hole (11) is connected to the mounting hole (2).

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