Series warhead preceding-stage charging device

Abstract

The utility model relates to a series warhead preceding-stage charging device which comprises a shell, a main grain, a shaped charge cover, an auxiliary grain, a partition plate and a pressing screw, the shell, the main grain, the shaped charge cover, the auxiliary grain and the pressing screw are all of an axial symmetry structure, the shell is of a cylindrical structure with two ends, one end is open, the other end is not open, and the partition plate is arranged on the cylindrical structure. The auxiliary grain is arranged at the bottom of the non-open end of the shell, the auxiliary grain, the partition plate, the main grain, the shaped charge cover and the pressing screw are sequentially arranged in the shell, the partition plate is arranged between the auxiliary grain and the main grain, and the center of the partition plate and the axis of the auxiliary grain and the axis of the main grain are located on the same straight line. According to the series warhead preceding-stage charging device, the partition plates are additionally arranged in the mode that the main grain and the auxiliary grain are combined, primary detonation waves formed by the auxiliary grain are changed into annular waves from spherical waves under the action of the partition plates, the annular waves act on the shaped charge cover, detonation wave energy can be converted into jet flow energy more efficiently, and the detonation wave energy can be converted into jet flow energy more efficiently. Therefore, the armor penetrating depth is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ammunition, in particular to a front-stage charge device of a tandem warhead. Background Art

[0002] In anti-armor shaped charge warheads, with the continuous improvement of armor protection systems, armor protection capabilities are gradually enhanced, and the penetration capability of shaped charge jets also needs to be further improved.

[0003] For the tandem warhead of the break-break type, the leading warhead needs to reliably detonate the reactive armor after penetrating the related devices on the seeker. If the leading warhead has a small charge, it may not be enough to detonate the reactive armor. If the leading warhead has a large charge, the explosion of the leading warhead will have a significant impact on the trailing warhead.

[0004] Therefore, how to improve the power of the front stage without changing the amount of front stage charge becomes the key technology in the design of the front stage warhead. Summary of the invention

[0005] The technical problem to be solved by the utility model is how to improve the power of the front stage while keeping the charge amount of the front stage unchanged.

[0006] In order to solve the above technical problems, according to the utility model, a front-stage charging device of a tandem warhead is provided, which includes: a shell, a main charge column, a charge liner, an auxiliary charge column, a partition and a pressure screw, wherein the shell, the main charge column, the charge liner, the auxiliary charge column and the pressure screw are all axisymmetric structures, wherein the shell is a cylindrical structure with two ends, one end is open and the other end is not open, the auxiliary charge column is arranged at the bottom of the non-open end of the shell, and the auxiliary charge column, the partition, the main charge column, the charge liner and the pressure screw are arranged in sequence in the shell, wherein the partition is arranged between the auxiliary charge column and the main charge column, and the center of the partition and the axis of the auxiliary charge column and the main charge column are on a straight line.

[0007] According to an embodiment of the present invention, the partition may be circular.

[0008] Furthermore, the diameter of the partition is 0.6 to 0.8 times the inner diameter of the shell.

[0009] According to the embodiments of the present invention, the partition may also be in the shape of a triangle, a trapezoid, or an ellipse, but is not limited thereto.

[0010] According to the embodiment of the utility model, the main drug column and the drug liner can be pressed together, and the auxiliary drug column, the partition plate and the main drug column are bonded together to form a whole. The main drug column, the partition plate and the auxiliary drug column are bonded and placed in the shell, and the drug liner is pressed onto the main drug column by a pressing screw.

[0011] According to the embodiment of the utility model, the partition can be made of a material with low sound velocity, low density and uniform material.

[0012] Furthermore, the partition is made of materials including bakelite, polystyrene, and polyethylene.

[0013] Compared with the prior art, the technical solution provided by the embodiment of the utility model can at least achieve the following beneficial effects:

[0014] The utility model does not change the original charge quality and external dimensions. By combining the main charge column and the auxiliary charge column, the partition is added. The primary detonation wave formed by the auxiliary charge column is transformed from a spherical wave into an annular wave under the action of the partition. The annular wave acts on the charge liner to more efficiently convert the detonation wave energy into jet energy, thereby improving the armor penetration. The raw material source of the partition is relatively wide, the cost is low, and the processing and forming performance is good. The processing and assembly process of the charge structure is relatively simple, and it can be used for the front stage of the tandem armor-piercing warhead.

[0015] The utility model provides a charge structure which can improve the armor penetration depth of the front-stage warhead without increasing the charge amount of the front-stage warhead. Through numerical calculation and static explosion test, the penetration capability is improved by more than 10%. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present utility model, rather than limiting the present utility model.

[0017] Figure 1 It is a schematic diagram showing the composition of the front-stage charge structure of a tandem warhead according to an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram showing the charge structure according to an embodiment of the utility model and the existing charge structure.

[0019] Figure 3 It is a finite element structure diagram showing the charge according to the embodiment of the utility model and the existing charge. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment 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.

[0021] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate the existence of at least one.

[0022] Figure 1 It is a schematic diagram showing the composition of the front-stage charge structure of a tandem warhead according to an embodiment of the utility model.

[0023] like Figure 1 As shown, the front-stage charging device of the tandem warhead includes: a shell 1, a main charge column 4, a charge liner 5, an auxiliary charge column 2, a partition 3 and a pressure screw 6.

[0024] The shell 1, the main drug column 4, the drug liner 5, the auxiliary drug column 2 and the pressure screw 6 are all axisymmetric structures. Among them, the shell 1 is a cylindrical structure with two ends, one end is open and the other end is not open, the auxiliary drug column 2 is arranged at the bottom of the non-open end of the shell 1, and the auxiliary drug column 2, the partition 3, the main drug column 4, the drug liner 5 and the pressure screw 6 are arranged in sequence in the shell 1. Among them, the partition 3 is arranged between the auxiliary drug column 2 and the main drug column 4, and the center of the partition 3 and the axis of the auxiliary drug column 2 and the main drug column 4 are on a straight line.

[0025] The utility model does not change the original charge quality and external dimensions. By combining the main charge column 4 and the auxiliary charge column 2, the partition 3 is added, so that the primary detonation wave formed by the auxiliary charge column 2 is transformed from a spherical wave into an annular wave under the action of the partition 3. The annular wave acts on the charge liner 5 to more efficiently convert the detonation wave energy into jet energy, thereby improving the armor penetration. The raw material source of the partition 3 is relatively wide, the cost is low, and the processing and forming performance is good. The processing and assembly process of the charge structure is relatively simple, and it can be used for the front stage of the tandem armor-piercing warhead.

[0026] According to one or some embodiments of the present invention, the partition 3 is circular.

[0027] Furthermore, the diameter of the partition plate 3 is 0.6 to 0.8 times the inner diameter of the shell 1 .

[0028] According to one or some embodiments of the present invention, the partition 3 may also be in a triangular, trapezoidal, or elliptical shape, but is not limited thereto.

[0029] According to one or some embodiments of the utility model, the main drug column 4 and the drug liner 5 are pressed together, and the auxiliary drug column 2, the partition 3, and the main drug column 4 are bonded together to form a whole. The main drug column 4, the partition 3, and the auxiliary drug column 2 are bonded and placed in the shell 1, and the drug liner 5 is pressed onto the main drug column 4 by the pressing screw 6.

[0030] According to one or some embodiments of the present invention, the partition 3 is made of a material with low sound velocity, low density and uniform material.

[0031] Furthermore, the partition 3 is made of materials including bakelite, polystyrene, and polyethylene.

[0032] The utility model provides a charge structure which can improve the armor penetration depth of the front-stage warhead without increasing the charge amount of the front-stage warhead. Through numerical calculation and static explosion test, the penetration capability is improved by more than 10%.

[0033] Figure 2 It is a schematic diagram showing the charge structure according to an embodiment of the utility model and the existing charge structure; Figure 3 It is a finite element structure diagram showing the charge according to the embodiment of the utility model and the existing charge.

[0034] like Figure 2 As shown, the right side is the existing tandem warhead front stage charge structure, and the left side of the present structure adds a partition 3 on the basis of the original structure. The charge diameter is 44mm, the conical cover (charge cover 5) has a constant wall thickness, and the cone angle is 60°. The existing finite element software AUTODYN is used to perform numerical simulation of jet formation and penetration power. Figure 3 Shown are two finite element models of charge structures.

[0035] After the charge is detonated, the primary detonation wave formed by the auxiliary charge column 2 is transformed from a spherical wave into annular wave under the action of the partition 3. The annular wave acts vertically on the charge liner 5 and has a stronger driving ability than the spherical wave, so that all parts of the liner are in a highly efficient conversion state, forming a jet with higher speed and stronger penetration ability.

[0036] By comparison, the jet formed by the utility model has better jet continuity, and its head speed is 6300m / s, which is greater than the 5900m / s of the existing structure. The penetration results of the two charge structures on 45# steel are that the existing charge structure without the partition 3 has a penetration depth of 250mm, and the charge structure with the partition 3 has a penetration depth of 285mm, which is improved by 14%.

[0037] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A tandem warhead front-stage charging device, characterized in that: include: Shell, main charge column, charge liner, auxiliary charge column, partition and pressure screw, Among them, the shell, main drug column, drug liner, auxiliary drug column and pressure screw are all axisymmetric structures. The shell is a cylindrical structure with two ends, one end is open and the other end is not open, the auxiliary drug column is arranged at the bottom of the not open end of the shell, and the auxiliary drug column, the partition, the main drug column, the drug liner and the pressure screw are arranged in sequence in the shell. Wherein, the partition is arranged between the auxiliary drug column and the main drug column, and the center of the partition and the axis of the auxiliary drug column and the main drug column are in a straight line. The main drug column and the drug liner are pressed together, and the auxiliary drug column, the partition and the main drug column are bonded together into one body.

2. The front-stage charge device of the tandem warhead according to claim 1, characterized in that: The partition is circular.

3. The front-stage charge device of the tandem warhead according to claim 2, characterized in that: The diameter of the partition is 0.6 to 0.8 times the inner diameter of the shell.

4. The front-stage charge device of the tandem warhead according to claim 1, characterized in that: The partition is triangular.

5. The front-stage charge device of the tandem warhead according to claim 1, characterized in that: The partition is trapezoidal.

6. The front-stage charge device of the tandem warhead according to claim 1, characterized in that: The partition is oval.

7. The front-stage charge device of the tandem warhead according to claim 1, characterized in that: The main medicine column, the partition plate and the auxiliary medicine column are bonded and placed into the shell, and the medicine cover is pressed onto the main medicine column by a pressing screw.

8. The front-stage charge device of the tandem warhead according to claim 1, characterized in that: The partition is made of a material with low sound velocity, low density and uniform material.

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