Fixed connection structure for bullet and explosive barrel of recoil-free shell

Abstract

The utility model relates to the technical field of recoil-free cannon, in particular to a structure for fixedly connecting a bullet and a cartridge barrel of a recoil-free cannon, which comprises a bullet body filled with the bullet, a cartridge case is sleeved outside the bullet body, propellant powder is filled in the cartridge case, and an ignition end of the cartridge case is connected with a throat complex; the tail of the projectile body is connected with a turbine; an annular positioning plate is further arranged in the cartridge case, the outer edge of the positioning plate is fixed between the cartridge case and the throat complex, and the inner edge of the positioning plate is fixed between the projectile body and the turbine. Compared with a traditional cartridge case fixing mode, the cartridge case fixing device has the advantages that the bullet body is assisted to be fixed in the cartridge case through the mode that the positioning plate is clamped between the components, the original stability is kept, meanwhile, the breaking difficulty of the positioning plate during bullet launching is lowered, the synchronism of bullet launching and positioning plate breaking is guaranteed, and the flight stability of the bullet is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of recoilless cannon, specifically relates to a kind of fixed connection structure of recoilless cannon projectile and medicine bucket. BACKGROUND

[0002] Traditional fixed bullet mode is to fix cartridge through riveting on bullet body.In recoilless weapon system, when launching, projectile needs to overcome riveting force of cartridge, at this time, the broken timing with positioning plate will be inconsistent.After launching, the stability of projectile flight will be greatly influenced. SUMMARY

[0003] In order to solve the above problems, the utility model provides a kind of fixed connection structure of recoilless cannon projectile and medicine bucket, it is characterized by: including the bullet body of being equipped with projectile, the cartridge is sleeved on bullet body, cartridge is equipped with propellant, the ignition end of cartridge is connected with throat complex;Bullet body tail is connected with turbine;The annular positioning plate is also provided in cartridge, the outer edge of positioning plate is fixed between cartridge and throat complex, the inner edge of positioning plate is fixed between bullet body and turbine.

[0004] Further, the cartridge and throat complex are threadedly connected.

[0005] Further, the outer wall of cartridge is provided with external thread, the throat complex is provided with threaded cap, the internal thread matched with external thread is provided in threaded cap;The extension part is provided on the outer edge of positioning plate, and the threaded cap of throat complex is threadedly matched with the external thread of cartridge, so as to clamp the extension part of positioning plate between cartridge and throat complex.

[0006] Further, the bullet body and turbine are threadedly connected.

[0007] Further, the positioning plate is phenolic paperboard.

[0008] Summarized above, the utility model includes at least one of the following beneficial effects:

[0009] The utility model aims at providing a kind of fixed connection structure of recoilless cannon projectile and medicine bucket, cartridge and throat complex are tightened by thread, the outer edge of positioning plate is fixed between the two, and the inner edge is fixed between bullet body and turbine.Compared with the traditional cartridge fixing mode, the utility model is clamped between components by positioning plate, auxiliary bullet body is fixed in cartridge, while maintaining original stability, reduce the broken difficulty of positioning plate when projectile launches, ensure the simultaneity of projectile launching and positioning plate breaking, improve the flight stability of projectile. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is structure schematic diagram of the utility model;

[0011] Wherein each label corresponds to the component name is:

[0012] 1 - cartridge, 2 - bullet, 3 - positioning plate, 4 - turbine, 5 - throat complex. DETAILED DESCRIPTION

[0013] The utility model will be further explained in detail below in combination with the drawings. EMBODIMENT

[0014] As Figure 1 The embodiment provides a fixed connection structure of a non-recoil cannonball and a cartridge, which comprises a bullet 2, a turbine 4 connected to the tail of the bullet 2, a cartridge 1 sleeved outside the bullet 2, a throat complex 5 connected to the tail of the cartridge 1, and a cartridge base of a non-recoil cannonball with a nozzle throat. The cartridge 1 and the throat complex 5 are connected through threads. Specifically, the outer wall of the tail of the cartridge 1 is provided with external threads, the connecting end of the throat complex 5 and the cartridge 1 is provided with a threaded cap, the inner wall of the threaded cap is provided with internal threads, and the two are threadedly matched. In order to fix the bullet 2 in the cartridge 1, the embodiment is provided with a positioning plate 3 in the cartridge 1. The positioning plate 3 is an annular phenolic paper plate, the outer edge of which is provided with an extension part thinner than other parts, and the extension part is arranged between the cartridge 1 and the throat complex 5; when the cartridge 1 and the throat complex 5 are threadedly connected, the end part of the cartridge 1 and the throat complex 5 clamps the extension part of the outer edge of the positioning plate 3. In the same way, the inner edge of the positioning plate 3 is fixed between the bullet 2 and the turbine 4. The head of the bullet 2 is wider than the tail, is sleeved in the cartridge 1 and is in contact with the inner wall of the cartridge 1, and the tail is fixed through the positioning plate 3, so that the whole is fixed in the cartridge 1. When the propellant in the cartridge is ignited, the connecting part of the positioning plate is thin, and the impact resistance of the material itself is poor; at this time, the positioning plate is broken, the bullet 2 is disconnected from the cartridge 1, and starts to move forward under the force. The utility model fixes the bullet in the cartridge through the clamping mode of the positioning plate between the cartridge parts, reduces the breaking difficulty of the positioning plate when the bullet is launched while maintaining the original stability, ensures the simultaneity of the bullet launching and the breaking of the positioning plate, and improves the flight stability of the bullet.

[0015] The above are preferred embodiments of the utility model, which do not limit the protection scope of the utility model, therefore: equivalent changes made on the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A structure for securing a recoilless projectile to a propellant cartridge case, characterized in that: The application relates to a propellant cartridge comprising a projectile body (2) provided with a propellant cartridge (1) containing propellant, the ignition end of the propellant cartridge (1) being connected with a throat complex (5), the tail end of the projectile body (2) being connected with a turbine (4), the propellant cartridge (1) being further provided with an annular positioning plate (3), the outer edge of the positioning plate (3) being fixed between the propellant cartridge (1) and the throat complex (5), and the inner edge of the positioning plate (3) being fixed between the projectile body (2) and the turbine (4).

2. The securement structure of claim 1, wherein: The propellant cartridge (1) and the throat complex (5) are threadedly connected.

3. The securement structure of claim 2, wherein: The outer wall of the propellant cartridge (1) is provided with external threads, the throat complex (5) is provided with a threaded cap, the threaded cap is internally provided with internal threads matched with the external threads, the outer edge of the positioning plate (3) is provided with an extension, and the threaded cap of the throat complex (5) and the external threads of the propellant cartridge (1) threadedly match to clamp the extension of the positioning plate (3) between the propellant cartridge (1) and the throat complex (5).

4. The securement structure of claim 1, wherein: The projectile body (2) and the turbine (4) are threadedly connected.

5. The securement structure of claim 1, wherein: The positioning plate (3) is made of phenolic paper.

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