Explosion killing warhead with explosive loading cavity bin dividing device

Abstract

The invention provides an explosion-killing warhead with a charging cavity separating device, which comprises a warhead shell, a plurality of partition plates are arranged in the warhead shell, and a charging cavity of the warhead is divided into a plurality of small cavities by the partition plates; a plurality of partition plate through holes are formed in the partition plate, and flexible blocking pieces are arranged at the partition plate through holes. A warhead charging cavity is divided into a plurality of independent small spaces through the partition plates, the high explosive is melted and then charged into the warhead charging cavity, at the moment, the flexible blocking pieces are opened, the partition plate through holes are opened, and the independent small spaces communicate with one another; after the high explosive is cooled and solidified, the flexible blocking pieces are closed, the partition plate through holes are closed, the high explosive is isolated in a plurality of independent small spaces, the large-size high explosive is divided into the small-size high explosive, after the size of the high explosive is reduced, the sensitivity to temperature changes is greatly reduced, cracks are avoided, and safety is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of anti-blast warhead design, relates to an auxiliary device of an anti-blast warhead, and particularly relates to an anti-blast warhead with a charge chamber compartment device. Background Art

[0002] The anti-explosive warhead is composed of a metal warhead shell and high explosives loaded inside. It relies on the blasting effect produced by the explosion of high explosives to destroy the target. When the high explosive explodes, it is converted into a large amount of high-temperature and high-pressure gas within a few tenths of a second. Under the expansion of the high-temperature and high-pressure gas, the warhead shell ruptures and generates a shock wave in the air around the warhead. The pressure of this shock wave reaches about 20GPa and the temperature reaches about 5000℃. It can damage personnel targets and lightly armored targets, and plays an important role in today's local wars.

[0003] Since the thermal expansion coefficient of high explosives is high (on the order of 10 -4 ), the thermal expansion coefficient of the metal material of the warhead shell is low (its order of magnitude is 10 -5 ), as the ambient temperature rises, the high explosive expands significantly, while the warhead shell does not expand significantly. Since the high explosive is inside the warhead shell, the expansion of the high explosive will be restricted by the metal shell, and the high explosive will be subjected to a large extrusion force. For a 600mm diameter anti-explosion warhead, cracks are likely to form inside the extruded high explosive.

[0004] According to the records in the prior art: As the size of high explosives increases, the thermal expansion deformation is large, the stress generated is also large, and cracks are more likely to occur. As the anti-explosive warhead continues to develop, the diameter of the anti-explosive warhead is getting larger and larger, now reaching 750mm. As the temperature changes, the risk of cracks gradually increases. Explosives with cracks are prone to accidental ignition during the launch process. Therefore, cracks are not allowed inside military explosives. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a blasting warhead with a charge chamber compartment device to solve the technical problem in the prior art that large-sized high explosives are squeezed by the warhead shell after expansion, subjected to a large squeezing pressure, and easily cause cracks to form inside the high explosives.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0007] A blasting warhead with a charge chamber compartment device comprises a warhead shell, which is a rotating body and has closed axial ends; the enclosed space inside the warhead shell is the warhead charge chamber, which is used to load high explosives, and the thermal expansion coefficient of the high explosives is greater than the thermal expansion coefficient of the material of the warhead shell.

[0008] A plurality of partitions are arranged in the warhead shell, the outer edges of the partitions are fixed on the inner wall of the warhead shell, and the plurality of partitions divide the warhead charge cavity into a plurality of small cavities; a plurality of partition through holes are opened on the partition, and a flexible baffle is coaxially arranged at the partition through holes.

[0009] A plurality of partitions are arranged in the warhead shell, the outer edges of the partitions are fixed on the inner wall of the warhead shell, and the plurality of partitions divide the warhead charge cavity into a plurality of small cavities; a plurality of partition through holes are opened on the partition, and a flexible baffle is coaxially arranged at the partition through holes.

[0010] The flexible baffle is a circular structure, and is composed of a plurality of fan-shaped baffles of the same shape and size. The radial outer edges of the fan-shaped baffles are integrally connected and fixed on the partition, and the vertices of the radial inner ends of the fan-shaped baffles are gathered at the center of the flexible baffle. The thickness of the flexible baffle is 3 to 3.5 mm.

[0011] When multiple fan-shaped baffles are fully closed, the partition through hole is completely covered by the flexible baffle, and at this time, the several small cavities in the warhead charging cavity are not connected to each other; when multiple fan-shaped baffles are partially opened or fully opened, a baffle opening is formed at the center of the flexible baffle, and the partition through hole is partially opened or fully opened and connected to the baffle opening, and at this time, the several small cavities in the warhead charging cavity are connected to each other.

[0012] The present invention also includes the following technical features:

[0013] Specifically, the flexible baffle is composed of six fan-shaped baffles.

[0014] Specifically, the inner diameter of the partition through hole and the maximum inner diameter of the baffle opening are both 50 mm.

[0015] Specifically, the distance between the centers of two adjacent partition through holes on the same partition is 100 mm.

[0016] Specifically, the flexible baffle is made of rubber.

[0017] Specifically, the partition includes two first partitions and multiple second partitions; the first partition is arranged along the axial direction of the warhead shell, the central axis of the first partition coincides with the rotating axis of the warhead shell, and the two first partitions are perpendicular to each other; the multiple partition through holes on the first partition are arranged at equal intervals along the rotating axis of the warhead shell; the radial line of the second partition is perpendicular to the rotating axis of the warhead shell, the center of the second partition coincides with the rotating axis of the warhead shell, the multiple second partitions are arranged at equal intervals along the rotating axis of the warhead shell, and the multiple partition through holes on the second partition are arranged at equal intervals along the direction perpendicular to the rotating axis of the warhead shell.

[0018] Specifically, the number of the second partitions is five.

[0019] Specifically, the warhead shell is divided into a warhead shell front portion, a warhead shell middle portion and a warhead shell rear end cover from front to back. The warhead shell front portion and the warhead shell middle portion are integrated, and the warhead shell rear end cover is detachably fixedly installed at the axial rear end of the warhead shell middle portion.

[0020] Compared with the prior art, the present invention has the following technical effects:

[0021] The present invention adopts a partition to divide the warhead charge cavity into a plurality of independent small spaces. After the high explosive is melted, it is loaded into the warhead charge cavity. At this time, the flexible baffle is opened and the through hole of the partition is opened, and the plurality of independent small spaces are interconnected. After the high explosive is cooled and solidified, the flexible baffle is closed and the through hole of the partition is closed, and the high explosive is isolated in the plurality of independent small spaces, thereby realizing the division of large-sized high explosive into small-sized ones. After the size of the high explosive is reduced, its sensitivity to temperature changes is greatly reduced, thereby avoiding the generation of cracks and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the anti-explosive warhead with a charge chamber compartment device.

[0023] Figure 2 This is a schematic diagram of the structure of the warhead shell.

[0024] The meanings of the numbers in the figure are: 1-warhead shell, 2-partition through hole, 3-flexible baffle, 4-baffle opening, 5-first baffle, 6-second baffle.

[0025] 101-front part of the warhead casing, 102-middle part of the warhead casing, 103-rear end cover of the warhead casing.

[0026] The specific contents of the present invention are further explained in detail below in conjunction with embodiments. DETAILED DESCRIPTION

[0027] It should be noted that, unless otherwise specified, all components, explosives and materials in the present invention are components, explosives and materials known in the art.

[0028] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0029] Embodiment 1:

[0030] This embodiment provides a blasting warhead with a charge chamber compartment device, such as Figure 1 As shown, it includes a warhead shell 1, which is a rotating body, and both axial ends of the warhead shell 1 are closed; the enclosed space in the warhead shell 1 is a warhead charge chamber, which is used to fill high explosives, and the thermal expansion coefficient of the high explosives is greater than the thermal expansion coefficient of the material of the warhead shell 1; a plurality of partitions are arranged in the warhead shell 1, and the outer edges of the partitions are fixed on the inner wall of the warhead shell 1, and the plurality of partitions divide the warhead charge chamber into a plurality of small cavities; a plurality of partition through holes 2 are opened on the partition, and a flexible baffle 3 is coaxially arranged at the partition through hole 2; the flexible baffle 3 is a disc structure The flexible baffle 3 is composed of a plurality of fan-shaped baffles of the same shape and size, the radial outer edges of the fan-shaped baffles are integrally connected and fixed on the partition, and the vertices of the radial inner ends of the fan-shaped baffles are gathered at the center of the flexible baffle 3; when the plurality of fan-shaped baffles are fully closed, the baffle through hole 2 is completely covered by the flexible baffle 3, and at this time, the several small cavities of the warhead charging cavity are not connected to each other; when the plurality of fan-shaped baffles are partially opened or fully opened, a baffle opening 4 is formed at the center of the flexible baffle 3, the baffle through hole 2 is partially opened or fully opened and connected to the baffle opening 4, and at this time, the several small cavities of the warhead charging cavity are connected to each other.

[0031] In this embodiment, the warhead shell 1 is made of conventional metal known in the prior art, preferably high-strength stainless steel, which has a low thermal expansion coefficient; the high explosive is a conventional high explosive known in the prior art, and its main components include main explosives (RDX, octogen, etc.), curing agent (isocyanate curing agent or epoxy resin curing agent, etc.), aluminum powder, etc., and the thermal expansion coefficient of the high explosive is high. The bulkhead, bulkhead through hole 2, flexible baffle 3 and baffle opening 4 are used to form a charge chamber compartment device, which can divide large-sized high explosives into small-sized ones, thereby reducing the temperature sensitivity of the high explosives and avoiding the phenomenon of cracks in the high explosives due to changes in ambient temperature.

[0032] As a specific solution of this embodiment, the thickness of the flexible baffle 3 is 3 mm.

[0033] As a specific solution of this embodiment, the flexible baffle 3 is composed of six fan-shaped baffles.

[0034] As a specific solution of this embodiment, the inner diameter of the partition through hole 2 and the maximum inner diameter of the baffle opening 4 are both 50 mm.

[0035] As a specific solution of this embodiment, the distance between the centers of two adjacent partition through holes 2 located on the same partition is 100 mm.

[0036] As a specific solution of this embodiment, the flexible baffle 3 is made of conventional rubber known in the prior art.

[0037] As a specific solution of this embodiment, Figure 1 As shown, the partition includes two first partitions 5 and multiple second partitions 6; the first partition 5 is arranged along the axial direction of the warhead shell 1, the central axis of the first partition 5 coincides with the rotating body axis of the warhead shell 1, and the two first partitions 5 are perpendicular to each other; the multiple partition through holes 2 located on the first partition 5 are arranged at equal intervals along the rotating body axis direction of the warhead shell 1; the radial line of the second partition 6 is perpendicular to the rotating body axis of the warhead shell 1, the center of the second partition 6 coincides with the rotating body axis of the warhead shell 1, the multiple second partitions 6 are arranged at equal intervals along the rotating body axis of the warhead shell 1, and the multiple partition through holes 2 located on the second partition 6 are arranged at equal intervals along the direction perpendicular to the rotating body axis of the warhead shell 1.

[0038] As a specific solution of this embodiment, the number of the second partitions 6 is five.

[0039] As a specific solution of this embodiment, the first partition plate 5 is a thin plate structure, and the shape of the cross section of the first partition plate 5 is the same as the shape of the cross section of the warhead charge cavity.

[0040] As a specific solution of this embodiment, the second partition plate 6 is a circular plate structure, and the center of the second partition plate 6 coincides with the axis of rotation of the warhead shell 1.

[0041] As a specific solution of this embodiment, the first partition plate 5 and the second partition plate 6 are both made of conventional metals known in the prior art, preferably high-strength stainless steel, to ensure the overall structural strength of the warhead.

[0042] As a specific solution of this embodiment, Figure 2As shown, the warhead shell 1 is divided into a warhead shell front portion 101, a warhead shell middle portion 102 and a warhead shell rear end cover 103 from front to back, the warhead shell front portion 101 and the warhead shell middle portion 102 are integrated, and the warhead shell rear end cover 103 is detachably fixedly installed at the axial rear end of the warhead shell middle portion 102; the warhead shell front portion 101 is a hollow conical cylinder structure, the axial front end surface of the conical cylinder structure is an arc surface, and the side generatrix of the warhead shell front portion 101 is an arc line; the warhead shell middle portion 102 is a hollow cylindrical structure; and the warhead shell rear end cover 103 is a circular plate structure.

[0043] The method for using the explosive warhead with the charge chamber compartment device of the present invention comprises the following steps:

[0044] Step 1, device assembly: assemble the first partition plate 5 and the second partition plate 6 with the flexible baffle 3 , and then assemble the first partition plate 5 and the second partition plate 6 with the warhead shell 1 .

[0045] Step 2, explosive filling: first melt the high explosive, then stand the warhead shell 1 upright, with the front end of the warhead shell 1 facing downward and the rear end of the warhead shell 1 facing upward, open the rear end cover 103 of the warhead shell, and load the melted high explosive from the axial rear end opened in the middle part 102 of the warhead shell. The melted high explosive passes through the partition through hole 2 and flows into the warhead charging cavity. Under the action of gravity, the melted high explosive flushes open the multiple fan-shaped baffles of the flexible baffle 3, so that the partition through hole 2 is open. The melted high explosive passes through the partition through hole 2 and the baffle opening 4 at one time until the warhead charging cavity is filled. At this time, the pressure values ​​on both sides of the flexible baffle 3 are the same, and the multiple fan-shaped baffles are completely closed.

[0046] Step three, cooling and solidification: after the melted high explosive is cooled and solidified, since the baffle openings 4 are all closed, the warhead charge cavity is divided into multiple independent spaces, and the multiple independent spaces are not connected to each other. The high explosive is divided into multiple portions, each of which is smaller in size, and the sensitivity to thermal expansion and contraction is greatly reduced. As the temperature changes, the risk of cracks is greatly reduced.

[0047] The design concept and working principle of the explosive warhead with a charge chamber compartment device of the present invention are as follows:

[0048] Due to the high thermal expansion coefficient of high explosives, the size of high explosives changes greatly with temperature changes. High explosives are prone to cracks during thermal expansion and contraction, and as the volume increases, this tendency to crack becomes greater and greater. High explosives with cracks are prone to accidental ignition during the launch process, so cracks are not allowed inside military explosives.

[0049] The present invention divides the inner cavity space of the warhead shell 1 into a plurality of independent small portions, each of which is relatively small in size. After the high explosive is loaded into the warhead shell 1, the high explosive is divided into a plurality of independent small portions, each of which is relatively small in size. After the size is reduced, the sensitivity of the high explosive to temperature changes decreases. After the small-sized high explosive expands and contracts due to heat and cold, it is not easy to produce cracks, thereby meeting the use requirements of the high explosive.

[0050] The technical obstacle of the present invention is how to smoothly fill the warhead charge cavity with high explosive after the inner cavity space of the warhead shell 1 is divided into multiple independent small portions. In order to solve the above technical obstacles, the present invention divides the inner cavity of the warhead shell 1 into multiple independent spaces by a first partition 5 and a second partition 6, and then designs a partition through hole 2 on the first partition 5 and the second partition 6, and a flexible baffle 3 is connected to the partition through hole 2, and the flexible baffle 3 will open when the pressure on both sides is unequal, and the flexible baffle 3 will close when the pressure on both sides is the same. Therefore, when the high explosive is loaded into the warhead shell 1, the baffle opening 4 is opened, so that the high explosive can fill the warhead charge cavity. After the high explosive is loaded, the baffle opening 4 is closed, and after the high explosive is solidified, it is completely divided into multiple independent small portions, thereby achieving the purpose of small size.

[0051] From the above analysis, it can be known that the present invention divides the warhead charge cavity into multiple compartments along the axial direction and multiple zones along the circumferential direction through the first partition 5 and the second partition 6, so that the size of the high explosive charge is greatly reduced, it is insensitive to thermal expansion and contraction, and is not prone to cracks.

[0052] The present invention has been found in the process of design and development that if the inner diameter of the partition through hole 2 is too small, the resistance of the high explosive to flow through the partition through hole 2 will be too large, resulting in the high explosive being unable to flow, and further resulting in a part of the space in the inner cavity of the warhead shell 1 not being filled with high explosive, causing the warhead shell 1 to fail to load high explosive. If the inner diameter of the partition through hole 2 is too large, the size of the flexible baffle 3 will increase accordingly, and the baffle opening 4 is coaxial with the partition through hole 2 and has the same inner diameter, so the inner diameter of the baffle opening 4 will also increase with the increase of the inner diameter of the partition through hole 2. After the high explosive is loaded into the warhead shell 1, in the process of waiting for the high explosive to cool and solidify, due to the excessive size of the baffle opening 4, although the pressure of the flexible baffle 3 is the same up and down and left and right at this time, the flexible baffle 3 has a large gravity due to its large size, and its own rigidity is poor. Under the action of the gravity of the flexible baffle 3 itself, the baffle opening 4 will open, resulting in the high explosive that has been separated being connected again, so that it is impossible to reduce the size of the high explosive to avoid the phenomenon of cracks formed by thermal expansion and contraction.

[0053] In order to avoid the above problems, the present invention has determined through a large number of experiments that when the inner diameter of the partition through hole 2 is 50 mm, the flow of high explosive will not be affected, and after the high explosive fills the warhead charging cavity, the baffle opening 4 can be completely closed, thereby dividing the high explosive into multiple independent small portions, avoiding the phenomenon of high explosives being connected to each other during cooling and solidification.

[0054] During the design and development process of the present invention, it was found that if the thickness of the flexible baffle 3 is too large, the rigidity of the flexible baffle 3 is too large, and a large gravity is required to deform it so that the multiple fan-shaped baffles can be opened (that is, the baffle opening 4 will be easy to close but difficult to open). In this way, it is easy to cause the multiple fan-shaped baffles to be closed before the high explosive has filled the warhead charging chamber, resulting in the problem of charging failure. If the thickness of the flexible baffle 3 is too small, the rigidity of the flexible baffle 3 is too small, and the high explosive will squeeze the multiple fan-shaped baffles apart during charging. After the charging is completed, since the rigidity of the flexible baffle 3 is too small, the multiple fan-shaped baffles are difficult to close automatically, resulting in the high explosive that has been separated being connected again. In this case, it is impossible to reduce the size of the high explosive to avoid the phenomenon of cracks formed by thermal expansion and contraction.

[0055] In order to avoid the above problems, the present invention uses some theoretical calculations, convenes staff with relevant work experience to collectively discuss and decompose the above problems, and conducts experimental evaluation on each module separately. It is finally believed that when the thickness of the flexible baffle 3 is 3 to 3.5 mm, the above problems can be avoided. The flexible baffle 3 has sufficient rigidity. After the charge is completed, the baffle opening 4 can be closed by its own rigidity, so that the high explosive is divided into multiple independent small parts; and the rigidity of the flexible baffle 3 is not too large, which will not affect the flow of the high explosive. The high explosive can open the baffle opening 4 by its gravity alone, so that the charge can be smoothly carried out.

[0056] Through the above design, it is ensured that the design advantages of the present invention can be reflected, the functions of the present invention can be fully exerted, and the problem can be fully solved by using the present invention.

[0057] Effect verification of Example 1:

[0058] Ten killing warheads with charge chamber compartment devices of Example 1 were processed and used according to the above steps. After the charge was completed, the high explosive inside the warhead shell 1 was scanned by CT, and it was found that the high explosive filled the warhead charge chamber without gaps, and all the baffle openings 4 were completely closed, and the high explosive was completely divided into multiple independent small-sized modules. Then the killing warhead was placed in a high-temperature box, heated to 70°C, and then cooled to 40°C, and repeated ten times. Then CT detection was performed again, and it was found that the high explosive in the warhead shell 1 was all intact, and no cracks were found. The above results prove that the present invention is effective.

[0059] Embodiment 2:

[0060] This embodiment provides a blasting warhead with a charge chamber compartment device, the structure of which is basically the same as that of Embodiment 1, except that: in this embodiment, the thickness of the flexible baffle 3 is 3.5 mm.

[0061] Effect verification of Example 2:

[0062] Ten killing warheads with charge chamber compartment devices of Example 2 were processed and used according to the above steps. After the charge was completed, the high explosive inside the warhead shell 1 was scanned by CT, and it was found that the high explosive filled the warhead charge chamber without any gaps, and all the baffle openings 4 were completely closed, and the high explosive was completely divided into multiple independent small-sized modules. Then the killing warhead was placed in a high-temperature box, heated to 70°C, and then cooled to 40°C, and repeated ten times. Then CT detection was performed again, and it was found that the high explosive in the warhead shell 1 was all intact, and no cracks were found. The above results prove that the present invention is effective.

Claims

1. A blasting warhead with a charge chamber compartment device, comprising a warhead shell (1), the warhead shell (1) being a rotating body, and both axial ends of the warhead shell (1) being closed; the enclosed space inside the warhead shell (1) being a warhead charge chamber, the warhead charge chamber being used to be filled with high explosives, the thermal expansion coefficient of the high explosives being greater than the thermal expansion coefficient of the material of the warhead shell (1); Features: A plurality of partitions are arranged inside the warhead shell (1), the outer edges of the partitions are fixed to the inner wall of the warhead shell (1), and the plurality of partitions divide the warhead charge cavity into a plurality of small cavities; a plurality of partition through holes (2) are opened on the partition, and a flexible baffle (3) is coaxially arranged at the partition through hole (2); The flexible baffle (3) is a circular structure, and is composed of a plurality of fan-shaped baffles of the same shape and size, the radial outer edges of the fan-shaped baffles are integrally connected and fixed on the partition, and the vertices of the radial inner ends of the fan-shaped baffles are gathered at the center of the flexible baffle (3); the thickness of the flexible baffle (3) is 3 to 3.5 mm; When the plurality of sector-shaped baffles are completely closed, the partition through hole (2) is completely covered by the flexible baffle (3), and at this time, the plurality of small cavities of the warhead charge chamber are not connected to each other; when the plurality of sector-shaped baffles are partially or completely opened, a baffle opening (4) is formed at the center of the flexible baffle (3), and the partition through hole (2) is partially or completely opened and connected to the baffle opening (4), and at this time, the plurality of small cavities of the warhead charge chamber are connected to each other.

2. The explosive warhead with a charge chamber compartment device as claimed in claim 1, It is characterized in that The flexible baffle (3) is composed of six fan-shaped baffles.

3. The explosive warhead with a charge chamber compartment device as claimed in claim 1, It is characterized in that The inner diameter of the partition through hole (2) and the maximum inner diameter of the baffle opening (4) are both 50 mm.

4. The explosive warhead with a charge chamber compartment device as claimed in claim 1, It is characterized in that The distance between the centers of two adjacent partition through holes (2) located on the same partition is 100 mm.

5. The explosive warhead with a charge chamber compartment device as claimed in claim 1, It is characterized in that The flexible baffle (3) is made of rubber.

6. The explosive warhead with a charge chamber compartment device as claimed in claim 1, It is characterized in that The partitions include two first partitions (5) and a plurality of second partitions (6); The first baffle (5) is arranged along the axial direction of the warhead shell (1), the central axis of the first baffle (5) coincides with the axis of rotation of the warhead shell (1), and the two first baffles (5) are perpendicular to each other; the plurality of baffle through holes (2) located on the first baffle (5) are arranged at equal intervals along the axis of rotation of the warhead shell (1); The radial line of the second partition (6) is perpendicular to the axis of rotation of the warhead shell (1), the center of the second partition (6) coincides with the axis of rotation of the warhead shell (1), a plurality of second partitions (6) are arranged at equal intervals along the axis of rotation of the warhead shell (1), and a plurality of partition through holes (2) located on the second partition (6) are arranged at equal intervals in a direction perpendicular to the axis of rotation of the warhead shell (1).

7. The explosive warhead with a charge chamber compartment device as claimed in claim 6, It is characterized in that The number of the second partitions (6) is five.

8. The explosive warhead with a charge chamber compartment device as claimed in claim 1, It is characterized in that The warhead shell (1) is divided into a warhead shell front part (101), a warhead shell middle part (102) and a warhead shell rear end cover (103) from front to rear. The warhead shell front part (101) and the warhead shell middle part (102) are integrated, and the warhead shell rear end cover (103) is detachably fixedly mounted at the axial rear end of the warhead shell middle part (102).

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