Composite inner core PELE structure and PELE shell slotting clamp
By employing a composite core structure and shell design in PELE, utilizing magnesium foam buffer and bundled tungsten wire to reinforce the shell, and combining it with fracture grooves, the problem of premature reaction of the active core was solved, thereby improving the penetration capability and damage effect of PELE.
Patent Information
- Application Number
- CN202423098613.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The active material core of the modified PELE is prone to premature reaction when penetrating the target plate, resulting in loss of shell speed and mass, and a decrease in penetration capability.
It adopts a composite inner core structure, including a buffer inner core and a reinforced burst-capacity inner core. The buffer inner core is protected by foamed magnesium. The front section of the shell is made of bundled tungsten wire tungsten alloy, and the rear section is equipped with a fracture groove group and a PELE shell grooving fixture to fix the shell.
It effectively protects the enhanced explosive core from reacting in the early stages of penetration, maintains the integrity of the shell structure, improves penetration capability and post-target damage effect, and enhances the armor-piercing performance of the shell.
Smart Images
Figure CN223678326U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of PELE, and concretely relates to a PELE structure with a composite inner core and a PELE shell slotting clamp. BACKGROUND
[0002] PELE (Penetrator with Enhanced Lateral Effect) is a new type of armor-piercing warhead that converts part of the axial kinetic energy into radial kinetic energy by utilizing the difference in material properties between the projectile shell and the inner core. This type of ammunition has good penetration ability and post-target fragment damage power. The projectile body does not contain high-energy explosives and is not equipped with a fuse. It mainly relies on physical action to penetrate the target, and the shell splits to form fragments to attack the post-target. Its three-dimensional shape is shown in Figure 1 .
[0003] Traditional PELE is mainly composed of a high-density outer shell and a low-density inner core material. The simplified structural diagram is shown in Figure 2 . The outer shell is usually made of heavy metals such as tungsten or steel, and the inner core is made of polyethylene or inert materials such as aluminum, which have relatively weak penetration performance.
[0004] In recent years, active materials have been widely studied and applied as a new type of energetic material. The mixture of metals and polymers is usually composed of two or more metal particles and fluoropolymers that do not have reaction characteristics and have high activity under normal conditions. This type of material is relatively insensitive under normal conditions, but under high strain rate loading or collision conditions, it will undergo a violent chemical reaction and release a large amount of chemical energy. In addition, by adding a modified gas-producing agent based on active materials, under high strain rate loading or collision conditions, not only can the energy release reaction occur, but also a large amount of gas can be generated.
[0005] When active materials (active materials / modified gas-producing agents) are applied to the inner core of PELE, modified active inner core (active materials) PELE and enhanced explosive capacity (active materials / modified gas-producing agents) PELE are produced, as shown in Figure 3 and Figure 4 . Compared with inert inner core materials, the enhanced explosive capacity (active materials / modified gas-producing agents) inner core can react and actively release energy when the projectile penetrates the target plate, causing the shell to break and produce more fragments while obtaining higher speed. It may even ignite and detonate other targets behind the target plate, causing physical and chemical damage to the target.
[0006] But the modified PELE in the penetration target, the front end of the inner core enhanced explosion capacity (active material / modified gas generating agent) will occur in front of the target reaction, the reaction product generated by the shell produces a radial effect, destroy the penetration shape of the shell and ultimately lead to the speed loss and mass loss of the shell is higher than the traditional PELE, show the penetration ability is inferior to the traditional PELE, in view of this, the utility model discloses. Utility model content
[0007] The utility model discloses to solve the technical problem that provide a kind of PELE structure of composite inner core's penetration ability is not inferior to the traditional PELE and PELE shell slotting fixture.
[0008] In order to solve the above technical problems, the utility model adopts the following technical scheme: a kind of PELE structure of composite inner core, including shell and sequentially filled in the shell enhanced explosion capacity inner core and buffer inner core, and the buffer inner core is located in the port part of the shell.
[0009] Further, the buffer inner core uses foamed magnesium.
[0010] Further, the front section of the shell is made of tungsten alloy with added cluster tungsten wire.
[0011] Further, the rear section of the shell has a fracture slot group.
[0012] Further, the fracture slot group includes a plurality of strip-shaped slots spaced along the circumference of the shell and a plurality of annular slots spaced along the length of the shell, the strip-shaped slots are opened along the length of the shell, the annular slots are opened along the circumference of the shell, and the strip-shaped slots and the annular slots are in communication with each other.
[0013] A PELE shell slotting fixture is suitable for the shell of the PELE structure of the composite inner core, comprising a base and a plurality of clamping pieces arranged on the base, a groove is provided on the base for inserting the front port of the shell, and a plurality of clamping pieces can fix the front port of the shell in the groove.
[0014] Further, the clamping piece includes a first clamping block and a first threaded rod threadedly connected with the first clamping block, the first clamping block is located on the outside of the shell and can slide fit with the base along the diameter direction of the shell.
[0015] Further, the clamping piece further includes a second clamping block and a second threaded rod threadedly connected with the second clamping block, the second clamping block is located on the inside of the shell and can slide fit with the base along the diameter direction of the shell.
[0016] Further, the clamping piece further comprises a support table, a first gear rotatably arranged on the support table, and two second gears respectively engaged on two sides of the first gear, the two second gears are respectively connected with the first threaded rod and the second threaded rod, and the first threaded rod and the second threaded rod are opposite in screwing direction.
[0017] Further, the base is externally provided with a flange, and a plurality of fixing holes are formed in the flange.
[0018] The beneficial effects of the utility model are embodied in:
[0019] The PELE structure of the composite inner core of the utility model buffers and protects the reinforced explosive capacity inner core by arranging the buffer inner core at the port part of the shell, ensures that the reinforced explosive capacity inner core does not react at the beginning stage of penetration, so as to ensure the penetration capacity of the PELE bullet body. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a schematic view of a traditional PELE structure;
[0021] Figure 2 It is a side view of a traditional PELE structure;
[0022] Figure 3 It is a side view of a reactive material inner core PELE structure;
[0023] Figure 4 It is a side view of a reinforced explosive capacity inner core PELE structure;
[0024] Figure 5 It is a side view of the PELE structure of the utility model;
[0025] Figure 6 It is a side view of the PELE structure of the utility model;
[0026] Figure 7 It is a side view of the PELE shell slot clamp of the utility model;
[0027] Figure 8 It is Figure 7 The enlarged view of A part of the utility model;
[0028] Figure 9 It is a PELE penetration damage effect diagram of the utility model;
[0029] Figure 10 It is a metallographic micrograph of foamed magnesium material;
[0030] Figure 11 It is a stress-strain curve of foamed magnesium material with different porosities;
[0031] Figure 12is a schematic diagram of tungsten alloy shell penetration;
[0032] Figure 13 is a schematic diagram of self-sharpening effect of cluster tungsten wire shell.
[0033] The labels of the components in the drawings are as follows: 1, shell; 2, reinforced explosive capacity inner core; 3, buffer inner core; 4, fracture groove set; 401, strip-shaped groove; 402, ring-shaped groove; 5, base; 501, groove; 502, flange; 5021, fixing hole; 6, clamping piece; 601, first clamping block; 602, first threaded rod; 603, second clamping block; 604, second threaded rod; 605, support table; 606, first gear; 607, second gear. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0035] Referring to Figure 6 , 9 .
[0036] The PELE structure of the composite inner core comprises a shell 1 and a reinforced explosive capacity inner core 2 and a buffer inner core 3 filled in the shell 1 in sequence, and the buffer inner core 3 is located at a port portion of the shell 1.
[0037] The PELE structure of the composite inner core buffers and protects the reinforced explosive capacity inner core 2 by arranging the buffer inner core 3 at the port portion of the shell 1, so that the reinforced explosive capacity inner core 2 does not react at the beginning of penetration, thereby ensuring the penetration ability of the PELE projectile.
[0038] In an embodiment, referring to Figure 10 , 11 , the buffer inner core 3 is made of foamed magnesium. In this way, the foamed magnesium is used to buffer and protect the reinforced explosive capacity inner core 2 by using the low platform stress characteristics of the foamed magnesium, so that Figure 10 and 11As shown, for high-porosity magnesium foam, the plateau stress can be as low as 3-4 MPa. In the initial stage of penetration, the porous structure of the magnesium foam continuously collapses, buffering and maintaining a low stress value, thus ensuring that the reinforced burst core 2 at the rear end of the core does not react. However, in the later stage of penetration, the stress value of the magnesium foam increases after compaction and exceeds the trigger stress of the reinforced burst core 2, thereby stimulating the reinforced burst core 2 to undergo an active energy release reaction. It should be noted that the buffer core 3 can also be made of aluminum foam with similar functions and structures.
[0039] In one embodiment, see Figure 12 , 13 The front section of the shell 1 is made of tungsten alloy with added bundled tungsten wires. This design further improves the penetration capability of the shell 1. It should be noted that the bundled tungsten wire is a composite material penetrating shell formed by using high-density, high-strength, and high aspect ratio tungsten wires as the reinforcing phase, supplemented by nickel-iron alloy as the binder phase. During the penetration process, the binder phase of the bundled tungsten wire continuously detaches, forming a self-sharpening effect. During the penetration process, loosening occurs between the tungsten wires, and penetration is mainly carried out by individual tungsten wires as units. This fully utilizes the advantage of the high aspect ratio of individual tungsten wires, making the penetration performance of the bundled tungsten wire composite shell superior to that of ordinary tungsten alloy shells.
[0040] In one embodiment, see Figure 5 The rear section of the housing 1 has a fracture groove group 4;
[0041] The fracture groove group 4 includes multiple strip grooves 401 spaced apart circumferentially along the shell 1 and multiple annular grooves 402 spaced apart along the length of the shell 1. The strip grooves 401 are formed along the length of the shell 1, and the annular grooves 402 are formed along the circumference of the shell 1, and the strip grooves 401 and the annular grooves 402 are interconnected. This design enhances the explosive capacity. The large amount of gas products generated by the core 2 upon penetrating the target plate will cause the shell 1 to fracture along the fracture groove group 4, generating more fragments, achieving higher velocities, and potentially igniting other targets after the detonation target, thus causing both physical and chemical damage to the target.
[0042] A PELE housing slotting fixture, see Figure 7 The housing 1, suitable for the PELE structure of the composite inner core, includes a base 5 and a plurality of clamping members 6 disposed on the base 5. The base 5 has a groove 501 for inserting the front port of the housing 1, and the plurality of clamping members 6 can fix the front port of the housing 1 in the groove 501. This design facilitates the slotting of the rear section by clamping the port of the housing 1.
[0043] In one embodiment, see Figure 7The clamping piece 6 comprises a first clamping block 601 and a first threaded rod 602 threadedly connected with the first clamping block 601, and the first clamping block 601 is located outside the shell 1 and is slidably matched with the base 5 in the diameter direction of the shell 1. In this way, the first clamping block 601 is moved by rotating the first threaded rod 602, and the clamping effect is realized by the plurality of first clamping blocks 601, so that the structure is simple and the operation is convenient.
[0044] In an embodiment, referring to Figure 8 The clamping piece 6 further comprises a second clamping block 603 and a second threaded rod 604 threadedly connected with the second clamping block 603, and the second clamping block 603 is located inside the shell 1 and is slidably matched with the base 5 in the diameter direction of the shell 1. In this way, the second clamping block 603 is moved by rotating the second threaded rod 604, so as to realize the clamping and fixing effect inside and outside the shell 1 in cooperation with the first clamping block 601, and the stability of the shell 1 during slotting is enhanced.
[0045] In an embodiment, referring to Figure 8 The clamping piece 6 further comprises a support table 605, a first gear 606 rotatably arranged on the support table 605, and two second gears 607 meshed on two sides of the first gear 606, respectively, two second gears 607 are connected with the first threaded rod 602 and the second threaded rod 604, respectively, and the threaded directions of the first threaded rod 602 and the second threaded rod 604 are opposite. In this way, the second clamping block 603 and the first clamping block 601 are simultaneously moved by rotating the first gear 606, so as to realize the clamping and fixing effect, the structure is simple and the operation is convenient, and it needs to be noted that the first gear 606 is driven by a motor for stability.
[0046] In an embodiment, referring to Figure 7 The base 5 is provided with a flange 502 outside, and a plurality of fixing holes 5021 are formed in the flange 502. In this way, the base 5 is fixed through the fixing holes 5021, so as to facilitate the slotting operation, and it needs to be noted that the rear section of the shell 1 is pressed towards the port section after the base 5 is fixed, so as to keep the stability of the rear section of the shell 1 during slotting.
[0047] In summary, the PELE structure of the composite inner core and the PELE shell slotting clamp have the following advantages:
[0048] 1. The buffer characteristics of the foamed magnesium are utilized to ensure that the enhanced blast capacity inner core 2 does not prematurely initiate an active energy release reaction during penetration, so as to ensure that the structure of the PELE during penetration improves the penetration ability;
[0049] 2. Adopting adding bundled tungsten wire material as the front section of the shell 1, using the self-sharpening effect of the bundled tungsten wire shell to improve the penetration ability of the PELE;
[0050] 3. Adopting the structure of the fracture slot group 4 as the rear section of the shell 1, combining the enhanced explosive capacity effect of the enhanced explosive capacity inner core 2 to further improve the damage effect of the PELE after hitting the target;
[0051] 4. The first clamping block 601 cooperates with the second clamping block 603 to realize clamping and fixing effects inside and outside the shell 1, and enhances the stability of the shell 1 during slotting.
[0052] It should be understood that the examples and embodiments described herein are only for illustration and do not limit the present application, and those skilled in the art can make various modifications or changes based on it, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
[0053] It should be noted that if the present application embodiments involve directional indications such as up, down, left, right, front, back, etc., the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, such as shown in the drawings, if the certain posture changes, the directional indications also change accordingly.
[0054] In addition, if the present application embodiments involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B simultaneously satisfying the scheme. In addition, "multiple" means two or more. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.
Claims
1. A PELE structure of a composite inner core, characterized by, The casing (1) and the enhanced explosion containment inner core (2) and the buffer inner core (3) filled in the casing (1) in sequence, and the buffer inner core (3) is located at the port part of the casing (1), and the rear section of the casing (1) has a fracture groove group (4); The fracture groove group (4) comprises a plurality of strip grooves (401) distributed along the circumference of the casing (1) and a plurality of annular grooves (402) distributed along the length direction of the casing (1), the strip grooves (401) are opened along the length direction of the casing (1), the annular grooves (402) are opened along the circumference of the casing (1), and the strip grooves (401) and the annular grooves (402) are in communication with each other.
2. The PELE structure of a composite core according to claim 1, wherein, The buffer inner core (3) is made of foamed magnesium.
3. The PELE structure of a composite core according to claim 1, wherein, The front section of the casing (1) is made of tungsten alloy added with cluster tungsten wires.
4. A PELE shell slotting fixture, suitable for use with a shell (1) of a PELE construction with a composite core as claimed in any one of claims 1-3, characterized in that, The base (5) and a plurality of clamping pieces (6) arranged on the base (5), the base (5) is provided with a groove (501) for inserting the front port of the casing (1), and the plurality of clamping pieces (6) can fix the front port of the casing (1) in the groove (501).
5. The PELE housing slotting fixture of claim 4, wherein, The clamping piece (6) comprises a first clamping block (601) and a first threaded rod (602) threadedly connected with the first clamping block (601), and the first clamping block (601) is located outside the casing (1) and can be slidably connected with the base (5) along the diameter direction of the casing (1).
6. The PELE housing slotting fixture of claim 5, wherein, The clamping piece (6) further comprises a second clamping block (603) and a second threaded rod (604) threadedly connected with the second clamping block (603), and the second clamping block (603) is located inside the casing (1) and can be slidably connected with the base (5) along the diameter direction of the casing (1).
7. The PELE housing slotting fixture of claim 6, wherein, The clamping piece (6) further comprises a support table (605), a first gear (606) rotatably arranged on the support table (605), and two second gears (607) respectively engaged on both sides of the first gear (606), the two second gears (607) are respectively connected with the first threaded rod (602) and the second threaded rod (604), and the first threaded rod (602) and the second threaded rod (604) are opposite in screw direction.
8. The PELE housing slotting fixture of claim 7, wherein, The outer side of the base (5) is provided with a flange (502), and a plurality of fixing holes (5021) are formed in the flange (502).