Lightweight sabot

Abstract

The utility model discloses a lightweight sabot and belongs to the technical field of material equipment. Comprising a reinforcing inner plate combination and a sabot shell wrapping the outer surface, a first elastic cavity penetrating front and back is formed in the bottom of the sabot shell, the reinforcing inner plate combination is arranged in the first elastic cavity in an inserted mode, and fastening circular rings are arranged at the front end and the rear end of the sabot shell around the inner ring of the first elastic cavity; the reinforcing inner plate combination is arranged and is mainly made of carbon steel or aluminum alloy metal plates with high strength, 11 metal plates are evenly distributed on the reinforcing plates in the reinforcing inner plate combination in the 120-degree circumference, the included angle between every two metal plates is 11 degrees, the tops of the reinforcing plates are attached to each other in pairs, and therefore the reinforcing plates are not prone to falling off. And meanwhile, the outer part of the reinforcing inner plate is filled with the sabot shell filled with 35% of PEEK thermoplastic resin and 65% of carbon fiber short cut, so that the weight of the whole sabot is greatly reduced, and meanwhile, the strength of the sabot at the joint of the sabot and the bullet core at the central position is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of material equipment, and particularly relates to a lightweight sabot. Background Art

[0002] The sabot-piercing armor-piercing projectile is an improved type of traditional armor-piercing projectile to enhance the damage effect. It is a tungsten alloy projectile core smaller than the main gun caliber, with a sleeve ring made of light metal sleeved on it. The sleeve ring has the same caliber as the main gun. When fired, the light metal sleeve ring falls off, and the tungsten alloy projectile core continues to fly towards the target.

[0003] Both at home and abroad are looking for a lighter material with lower density and higher strength to replace the sabot processed from aluminum alloy material, so as to reduce the negative weight of the whole projectile, increase the muzzle velocity of the projectile, and achieve the purpose of improving the armor-piercing power. Content of the Utility Model

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a lightweight sabot.

[0005] To solve the above technical problems, the utility model is mainly solved by the following technical solutions: A lightweight sabot includes a reinforced inner plate combination and a sabot shell wrapped on the outer surface. A first bullet cavity penetrating through the front and back is opened at the bottom of the sabot shell. The reinforced inner plate combination is inserted into the first bullet cavity. A fastening ring is arranged around the inner circle of the first bullet cavity at the front and rear ends of the sabot shell. The sabot shell includes a saddle part, a front centering part, a rear centering part and a tail vertebra. The front centering part is arranged on the front side of the saddle part. An air-facing cavity is opened around the outer circle of the first bullet cavity on the front side of the front centering part. A cartridge belt groove is opened on the surface of the rear centering part. A rear cavity is opened at the rear side of the rear centering part. The tail vertebra is located at the rear side of the rear centering part. A plurality of insertion slots penetrating through the front and back are opened inside the sabot shell in the first bullet cavity. The insertion slots penetrate through the fastening ring. A plurality of annular grooves are horizontally opened on the inner wall of the first bullet cavity. The plurality of annular grooves communicate with the plurality of insertion slots. A second bullet cavity penetrating through the front and back is opened at the bottom of the reinforced inner plate combination. The reinforced inner plate combination corresponds to the insertion slots, and the second bullet cavity after their combination coincides with the first bullet cavity. The reinforced inner plate combination includes a plurality of reinforcing plates. The reinforced inner plate combination corresponds to the insertion slots. Eleven reinforcing plates are evenly distributed within a 120° circumference, and the included angle between two reinforcing plates is 11°. A plurality of annular holes are horizontally opened at the inner wall of each reinforcing plate. The positions of the annular holes correspond to the annular grooves. A circular groove corresponding to the annular groove is formed by the plurality of annular holes at the bottom of the plurality of reinforced inner plate combinations. Protrusions corresponding to the fastening ring are arranged on both the front and rear sides of the reinforcing plate.

[0006] Preferably, a front extension part is provided at the top of the front side of each of the first reinforcing plates, and a rear extension part is provided at the top of the rear side of each of the first reinforcing plates.

[0007] Preferably, a plurality of first hoop bands are provided in the insertion slots at the front and rear ends of the sabot shell, a plurality of second hoop bands are provided in the insertion slot in the middle of the sabot shell, a plurality of first hoop band holes corresponding to the first hoop bands are formed in the reinforcing plate at the position corresponding to the front extension part, and a plurality of second hoop band holes corresponding to the second hoop bands are formed in the middle of the reinforcing plate.

[0008] Preferably, the reinforcing plate includes a first saddle side edge, a first front centering side edge, a first rear centering side edge, and a first tail vertebra side edge. The first front centering side edge is provided on the front side of the first saddle side edge. A first windward groove is formed between the front side of the first front centering side edge and the first saddle side edge. The first rear centering side edge is provided at the top of the rear side of the first saddle side edge. A first rear groove is formed at the rear side of the first rear centering side edge. A first cartridge belt opening is formed at the top of the first rear centering side edge. The first tail vertebra side edge is provided on the rear side of the first saddle side edge. A first filling plate is provided at the middle position between the two reinforcing plates. Second filling plates are inserted on both the left and right sides of the first filling plate.

[0009] Preferably, the first filling plate includes a second saddle side edge, a second front centering side edge, a second rear centering side edge, and a second tail vertebra side edge. The second front centering side edge is provided on the front side of the second saddle side edge. A second windward groove is formed between the front side of the second front centering side edge and the second saddle side edge. The second rear centering side edge is provided at the top of the rear side of the second saddle side edge. A second rear groove is formed at the rear side of the second rear centering side edge. A second cartridge belt opening is formed at the top of the second rear centering side edge. The second tail vertebra side edge is provided on the rear side of the second saddle side edge.

[0010] Preferably, the second filling plate includes a third saddle side edge, a third front centering side edge, a third rear centering side edge, and a third tail vertebra side edge. The third front centering side edge is provided on the front side of the third saddle side edge. A third windward groove is formed at the front side of the third front centering side edge. The third rear centering side edge is provided at the top of the rear side of the third saddle side edge. A third rear groove is formed at the rear side of the third rear centering side edge. A third cartridge belt opening is formed at the top of the third rear centering side edge. The third tail vertebra side edge is provided on the rear side of the third saddle side edge.

[0011] The beneficial effects of the present utility model are as follows: By setting up the reinforced inner plate combination, which is mainly made of high-strength carbon steel or aluminum alloy metal plates, and there are 11 metal plates evenly distributed within a 120-degree circumference in the reinforced inner plate combination, with an included angle of 11 degrees between two adjacent plates. The tops of multiple reinforced plates are mutually attached to each other. At the same time, a sabot shell filled with 35% PEEK thermoplastic resin + 65% short-cut carbon fiber is filled outside the reinforced inner plate, thereby greatly reducing the weight of the entire sabot, and at the same time ensuring the strength of the connection between the sabot and the projectile core at the central position, thus being able to greatly increase the muzzle velocity and flight length of the entire warhead. Brief Description of the Drawings

[0012] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0013] Figure 2 is a three-dimensional structure schematic diagram of the sabot shell of the present utility model;

[0014] Figure 3 is a three-dimensional structure schematic diagram of the front view of the reinforced inner plate combination of the present utility model;

[0015] Figure 4 is a three-dimensional structure schematic diagram of the oblique view of the reinforced inner plate combination of the present utility model;

[0016] Figure 5 is a side structure schematic diagram of the reinforced plate of the present utility model;

[0017] Figure 6 is Figure 2 an enlarged structure schematic diagram of part A in

[0018] Figure 7 is a three-dimensional structure schematic diagram of another form of the sabot shell of the present utility model;

[0019] Figure 8 is an inverted three-dimensional structure schematic diagram of another form of the sabot shell of the present utility model;

[0020] Figure 9 is a combined structure schematic diagram of the reinforced plate, the first filling plate and the second filling plate of the present utility model;

[0021] Figure 10 is another structure schematic diagram of the reinforced plate of the present utility model;

[0022] Figure 11 is a three-dimensional structure schematic diagram of the first filling plate of the present utility model;

[0023] Figure 12 is a three-dimensional structure schematic diagram of the second filling plate of the present utility model.

[0024] In the figure: 1. sabot shell; 11. saddle part; 12. front centering part; 121. windward cavity; 13. rear centering part; 131. cartridge band groove; 132. rear cavity; 14. tail vertebra; 141. fastening ring; 15. first cartridge cavity; 16. insertion slot; 162. annular groove; 163. first hoop; 164. second hoop; 2. reinforced inner plate assembly; 21. reinforcement plate; 22. second hoop hole; 23. first hoop hole; 24. annular hole; 251. front extension part; 252. rear extension part; 26. bump; 27. second cartridge cavity; 311. first saddle side; 312. first front centering side; 313. first windward groove; 314. first rear centering side; 315. first cartridge band opening; 316. first rear groove; 317. first tail vertebra side; 32. first filling plate; 321. second saddle side; 322. second front centering side; 323. second windward groove; 324. second rear centering side; 325. second cartridge band opening; 326. second rear groove; 327. second tail vertebra side; 33. second filling plate; 331. third saddle side; 332. third front centering side; 333. third windward groove; 334. third rear centering side; 335. third cartridge band opening; 336. third rear groove; 337. third tail vertebra side. Detailed implementation mode

[0025] The technical solution of the present utility model will be further specifically described below through embodiments in combination with the accompanying drawings.

[0026] Embodiment 1: A lightweight sabot, such as Figures 1 - 6As shown, the sabot is assembled in three petals, each petal being 120 degrees. The sabot includes a reinforced inner plate assembly 2 and a sabot housing 1 covering the outer surface. The bottom of the sabot housing 1 is provided with a first bullet cavity 15 that penetrates through from front to back. The reinforced inner plate assembly 2 is inserted into the first bullet cavity 15. At the inner circle of the first bullet cavity 15 around the front and rear ends of the sabot housing 1, there are fastening rings 141. The sabot housing 1 includes a saddle part 11, a front centering part 12, a rear centering part 13, and a tail cone 14. The front centering part 12 is arranged on the front side of the saddle part 11. On the outer circle of the first bullet cavity 15 around the front side of the front centering part 12, there is a windward cavity 121. On the surface of the rear centering part 13, there is a cartridge band groove 131. On the rear side of the rear centering part 13, there is a rear cavity 132. The tail cone 14 is located on the rear side of the rear centering part 13. Inside the first bullet cavity 15 of the sabot housing 1, there are multiple insertion slots 16 penetrating through from front to back, and the insertion slots 16 penetrate through the fastening rings 141. Horizontally on the inner wall of the first bullet cavity 15, there are multiple annular grooves 162, and the multiple annular grooves 162 communicate with the multiple insertion slots 16. The bottom of the reinforced inner plate assembly 2 is provided with a second bullet cavity 27 that penetrates through from front to back. The reinforced inner plate assembly 2 corresponds to the insertion slots 16, and the formed second bullet cavity 27 coincides with the first bullet cavity 15. The reinforced inner plate assembly 2 includes multiple reinforcing plates 21. The reinforced inner plate assembly 2 corresponds to the insertion slots 16. Eleven reinforcing plates 21 are evenly distributed within a 120° circumference, and the angle between two adjacent reinforcing plates 21 is 11°. Horizontally on the inner wall of each reinforcing plate 21, there are multiple annular holes 24, and the positions of the annular holes 24 correspond to the annular grooves 162. The multiple annular holes 24 at the bottom of the multiple reinforced inner plate assemblies 2 form a circular groove corresponding to the annular grooves 162. On the front and rear sides of each reinforcing plate 21, there are convex blocks 26 corresponding to the fastening rings 141. On the front top of each reinforcing plate 21, there is a front extension part 251, and on the rear top of each reinforcing plate 21, there is a rear extension part 252.

[0027] A plurality of first hoop members 163 are provided in the insertion grooves 16 at the front and rear ends of the sabot housing 1, and a plurality of second hoop members 164 are provided in the insertion grooves 16 in the middle of the sabot housing 1. A plurality of first hoop holes 23 corresponding to the first hoop members 163 are formed in the reinforcing plate 21 at the position corresponding to the front extension portion 251, and a plurality of second hoop holes 22 corresponding to the second hoop members 164 are formed in the middle of the reinforcing plate 21. After arranging the above-mentioned reinforcing inner plate assemblies 2 through a mold according to the arrangement that 11 reinforcing plates 21 are evenly distributed within a 120° circumference and the included angle between two adjacent reinforcing plates 21 is 11°, a mold for pouring is then sleeved outside, and 35% PEEK thermoplastic resin + 65% short carbon fibers are filled in the mold, so that the outer surface of the reinforcing inner plate assembly 2 can be filled to form the sabot housing 1. The hoop cavities formed by the first hoop holes 23 and the second hoop holes 22 between the plurality of reinforcing inner plate assemblies 2 can be filled with the above-mentioned filler, and the formed first hoop members 163 and second hoop members 164 increase the connection tightness between the sabot housing 1. At the same time, the front extension portion 251 and the rear extension portion 252 at the top of the reinforcing plate 21 also serve to increase the connection tightness between the sabot housing 1. Meanwhile, the insertion groove 16 formed between the outer-cast sabot housing 1 and the outside of the reinforcing inner plate assembly 2 is used to better wrap the reinforcing inner plate assembly 2, and an annular groove 162 corresponding to the bottom annular hole 24 of the reinforcing plate 21 is formed on the inner wall of the sabot housing 1 through a mold.

[0028] Embodiment 2: A lightweight sabot, as Figures 7 - 12As shown, the sabot is assembled in three parts, each part being 120 degrees. The sabot includes a reinforced inner plate assembly 2 and a sabot housing 1 covering the outer surface. The bottom of the sabot housing 1 is provided with a first bullet cavity 15 that penetrates through from front to back. The reinforced inner plate assembly 2 is inserted into the first bullet cavity 15. Around the inner circle of the first bullet cavity 15 at the front and rear ends of the sabot housing 1, there are fastening rings 141. The sabot housing 1 includes a saddle part 11, a front centering part 12, a rear centering part 13, and a tail vertebra 14. The front centering part 12 is arranged on the front side of the saddle part 11. On the front side of the front centering part 12, a windward cavity 121 is opened around the outer circle of the first bullet cavity 15. A bullet belt groove 131 is opened on the surface of the rear centering part 13, and a rear cavity 132 is opened on the rear side of the rear centering part 13. The tail vertebra 14 is located on the rear side of the rear centering part 13. Inside the first bullet cavity 15 of the sabot housing 1, a plurality of insertion slots 16 are opened through from front to back, and the insertion slots 16 penetrate through the fastening rings 141. Horizontally on the inner wall of the first bullet cavity 15, a plurality of annular grooves 162 are opened. The plurality of annular grooves 162 communicate with the plurality of insertion slots 16. The bottom of the reinforced inner plate assembly 2 is provided with a second bullet cavity 27 that penetrates through from front to back. The reinforced inner plate assembly 2 corresponds to the insertion slots 16, and the formed second bullet cavity 27 coincides with the first bullet cavity 15. The reinforced inner plate assembly 2 includes a plurality of reinforcing plates 21. Each reinforcing plate 21 is inserted into the corresponding insertion slot 16. There are 11 reinforcing plates 21 evenly distributed within a 120° circumference, and the included angle between two reinforcing plates 21 is 11°. Horizontally on the inner wall of each reinforcing plate 21, a plurality of annular holes 24 are opened. The positions of the annular holes 24 correspond to the annular grooves 162. The plurality of annular holes 24 at the bottoms of the plurality of reinforced inner plate assemblies 2 form a circular groove corresponding to the annular grooves 162. On the front and rear sides of the reinforcing plate 21, there are convex blocks 26 corresponding to the fastening rings 141. On the front top of each reinforcing plate 21, there is a front extension part 251, and on the rear top of each reinforcing plate 21, there is a rear extension part 252.

[0029] The reinforcing plate 21 includes a first saddle side 311, a first front centering side 312, a first rear centering side 314, and a first coccyx side 317. The first front centering side 312 is arranged on the front side of the first saddle side 311. A first windward groove 313 is formed between the front side of the first front centering side 312 and the first saddle side 311. The first rear centering side 314 is arranged at the rear top of the first saddle side 311. A first rear groove 316 is formed on the rear side of the first rear centering side 314, and a first cartridge belt opening 315 is formed at the top of the first rear centering side 314. The first coccyx side 317 is arranged on the rear side of the first saddle side 311. A first filling plate 32 is arranged at the middle position between two reinforcing plates 21. Second filling plates 33 are inserted on both the left and right sides of the first filling plate 32. The first filling plate 32 includes a second saddle side 321, a second front centering side 322, a second rear centering side 324, and a second coccyx side 327. The second front centering side 322 is arranged on the front side of the second saddle side 321. A second windward groove 323 is formed between the front side of the second front centering side 322 and the second saddle side 321. The second rear centering side 324 is arranged at the rear top of the second saddle side 321. A second rear groove 326 is formed on the rear side of the second rear centering side 324, and a second cartridge belt opening 325 is formed at the top of the second rear centering side 324. The second coccyx side 327 is arranged on the rear side of the second saddle side 321. The second filling plate 33 includes a third saddle side 331, a third front centering side 332, a third rear centering side 334, and a third coccyx side 337. The third front centering side 332 is arranged on the front side of the third saddle side 331. A third windward groove 333 is formed on the front side of the third front centering side 332. The third rear centering side 334 is arranged at the rear top of the third saddle side 331. A third rear groove 336 is formed on the rear side of the third rear centering side 334, and a third cartridge belt opening 335 is formed at the top of the third rear centering side 334. The third coccyx side 337 is arranged on the rear side of the third saddle side 331;

[0030] The outer sides of the first saddle part 11, the second saddle part 11, and the third saddle part 11 are combined with each other to form the shape of the saddle part 11 corresponding to the outer side of the cartridge case 1. The first front centering side 312, the second front centering side 322, and the third front centering side 332 can form the shape of the front centering part 12 on the outer side of the cartridge case 1. The first rear centering side 314, the second rear centering side 324, and the third rear centering side 334 form the shape of the rear centering part 13 on the outer side of the cartridge case 1. The first coccyx side 317, the second coccyx side 327, and the third coccyx side 337 form the shape of the coccyx 14 on the outer side of the cartridge case 1. Thus, multiple reinforcing plates 21, the first filling plate 32, and the second filling plates 33 can be combined with each other to form a shape smaller than the outer surface diameter of the cartridge case 1. Finally, casting and filling are carried out on the outer surface to form the cartridge case, while increasing the diameter of the entire structure and enhancing the overall strength.

[0031] This sabot also adopts a structure of 11 pieces different from the reinforcing plate 21 in Embodiment 1. All of them adopt 11 metal plates evenly distributed within a 120-degree circumference, with an included angle of 11 degrees between two adjacent plates. Due to the increased width of the reinforcing plate 21, the space between two reinforcing plates 21 becomes larger, so more filling plates need to be filled at this position. The first filling plates 32 are inserted at the middle position between two reinforcing plates 21, with a total of 10 pieces. At the same time, the second filling plates 33 are inserted on the left and right sides of each first filling plate 32, with a total of 20 pieces. This filling method also uses a mold for preliminary arrangement and installation. Finally, 35% PEEK thermoplastic resin + 65% short-cut carbon fiber are filled on the outer surface to form the sabot shell 1, completing the production of the entire sabot.

[0032] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and there can be many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention should be considered to fall within the protection scope of the present invention.

Claims

1. A lightweight sabot, characterized in that: It includes a reinforced inner plate assembly (2) and a sabot shell (1) covering the outer surface. A first bullet cavity (15) running through from front to back is opened at the bottom of the sabot shell (1). The reinforced inner plate assembly (2) is inserted into the first bullet cavity (15). Fastening rings (141) are arranged around the inner circle of the first bullet cavity (15) at the front and rear ends of the sabot shell (1). The sabot shell (1) includes a saddle part (11), a front centering part (12), a rear centering part (13) and a tail vertebra (14). The front centering part (12) is arranged on the front side of the saddle part (11). An air-facing cavity (121) is opened around the outer circle of the first bullet cavity (15) on the front side of the front centering part (12). A cartridge band groove (131) is opened on the surface of the rear centering part (13). A rear cavity (132) is opened at the rear side of the rear centering part (13). The tail vertebra (14) is located at the rear side of the rear centering part (13). A plurality of insertion slots (16) running through from front to back are opened inside the sabot shell (1) in the first bullet cavity (15). The insertion slots (16) penetrate through the fastening rings (141). A plurality of annular grooves (162) are transversely opened on the inner wall inside the first bullet cavity (15). The plurality of annular grooves (162) communicate with the plurality of insertion slots (16). A second bullet cavity (27) running through from front to back is opened at the bottom of the reinforced inner plate assembly (2). The reinforced inner plate assembly (2) corresponds to the insertion slots (16), and the second bullet cavity (27) after their combination coincides with the first bullet cavity (15). The reinforced inner plate assembly (2) includes a plurality of reinforcing plates (21). Each reinforcing plate (21) is inserted into the corresponding insertion slot (16). Eleven reinforcing plates (21) are evenly distributed within a 120° circumference, and the included angle between two reinforcing plates (21) is 11°. A plurality of annular holes (24) are transversely opened at the inner wall of each reinforcing plate (21). The positions of the annular holes (24) correspond to the annular grooves (162). The plurality of annular holes (24) at the bottom of the plurality of reinforced inner plate assemblies (2) form a circular groove corresponding to the annular grooves (162). Protrusions (26) corresponding to the fastening rings (141) are arranged on both the front and rear sides of the reinforcing plate (21).

2. The lightweight sabot according to claim 1, wherein: A front extension part (251) is arranged at the top of the front side of each reinforcing plate (21), and a rear extension part (252) is arranged at the top of the rear side of each reinforcing plate (21).

3. The lightweight sabot according to claim 2, characterized in that: A plurality of first hoop bands (163) are arranged in the insertion slots (16) at both the front and rear ends of the sabot shell (1), and a plurality of second hoop bands (164) are arranged in the insertion slots (16) in the middle of the sabot shell (1). A plurality of first hoop band holes (23) corresponding to the first hoop bands (163) are opened at the position corresponding to the front extension part (251) of the reinforcing plate (21), and a plurality of second hoop band holes (22) corresponding to the second hoop bands (164) are opened in the middle of the reinforcing plate (21).

4. The lightweight sabot according to claim 1, characterized in that: The reinforcing plate (21) includes a first saddle side (311), a first front centering side (312), a first rear centering side (314), and a first coccyx side (317). The first front centering side (312) is disposed on the front side of the first saddle side (311). A first windward groove (313) is formed between the front side of the first front centering side (312) and the first saddle side (311). The first rear centering side (314) is disposed at the top of the rear side of the first saddle side (311). A first rear groove (316) is formed on the rear side of the first rear centering side (314). A first cartridge belt opening (315) is formed at the top of the first rear centering side (314). The first coccyx side (317) is disposed on the rear side of the first saddle side (311). A first filling plate (32) is disposed at the middle position between the two reinforcing plates (21). Second filling plates (33) are inserted on both the left and right sides of the first filling plate (32).

5. The lightweight sabot according to claim 4, wherein: The first filling plate (32) includes a second saddle side (321), a second front centering side (322), a second rear centering side (324), and a second coccyx side (327). The second front centering side (322) is disposed on the front side of the second saddle side (321). A second windward groove (323) is formed between the front side of the second front centering side (322) and the second saddle side (321). The second rear centering side (324) is disposed at the top of the rear side of the second saddle side (321). A second rear groove (326) is formed on the rear side of the second rear centering side (324). A second cartridge belt opening (325) is formed at the top of the second rear centering side (324). The second coccyx side (327) is disposed on the rear side of the second saddle side (321).

6. The lightweight sabot according to claim 4, wherein: The second filling plate (33) includes a third saddle side (331), a third front centering side (332), a third rear centering side (334), and a third coccyx side (337). The third front centering side (332) is disposed on the front side of the third saddle side (331). A third windward groove (333) is formed on the front side of the front centering side. The third rear centering side (334) is disposed at the top of the rear side of the third saddle side (331). A third rear groove (336) is formed on the rear side of the third rear centering side (334). A third cartridge belt opening (335) is formed at the top of the third rear centering side (334). The third coccyx side (337) is disposed on the rear side of the third saddle side (331).

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