Warhead with penetration attack angle reducing device

Abstract

The invention provides a warhead with a penetration attack angle reducing device, which comprises a warhead shell, the tail part of the warhead shell is sleeved with a fixing ring, the outer wall of the fixing ring is fixedly provided with a plurality of pairs of fin mounting lug plates, and the plurality of pairs of fin mounting lug plates are uniformly distributed along the circumferential direction of the fixing ring; a pin shaft is mounted in the wing panel mounting lug plate, a wing panel is mounted on the pin shaft, and the wing panel can rotate by taking the pin shaft as a rotating shaft; a torsional spring is mounted at the joint of the wing panel and the wing panel mounting lug plate; a plurality of notches are formed in the fixing ring and evenly distributed in the circumferential direction of the fixing ring, and the notches and the fins are distributed alternately. The attitude deflection of the warhead during target penetration is adjusted through the four fins on the fixing ring, when the warhead deflects, the fins on the fixing ring impact holes generated by penetration, a righting moment is given to a projectile to enable the warhead to deflect in the opposite direction, the attack angle generated in the penetration process is reduced, and the penetration effect of the warhead is improved. And the damage effect of the weapon is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of warhead design, relates to warhead attachment devices and accessories, and particularly to a warhead with a device for reducing penetration angle of attack. Background Art

[0002] In modern warfare, tanks, armored vehicles, large ships and fortifications are common targets. These targets usually have thick protective layers and strong protective armor. If a killing warhead is used, the target's protective armor will reduce the damage of fragments and explosion shock waves, and it is difficult to cause damage to the inside of the target. In order to effectively destroy the target, an armor-piercing warhead or a semi-armor-piercing warhead is generally selected to attack the target, so that the warhead penetrates the protective armor and explodes inside the target, enhancing the damage of explosives and fragments. Especially for ground targets and ship targets, when the warhead penetrates the armor, if the warhead axis and the target normal are inconsistent, the forces generated by the upper and lower surfaces when the warhead head hits the target will be uneven, thereby generating a deflection torque, resulting in an angle between the warhead axis direction and the warhead movement direction, which is called the angle of attack. When the angle of attack is too large, it will affect the damage effect of the warhead, and in severe cases, ricochets will occur. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a warhead with a device for reducing the penetration angle of attack, so as to solve the technical problem in the prior art that the damage effect of the warhead is poor due to the excessively large angle of attack.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0005] A warhead with a device for reducing the penetration angle of attack, comprising a warhead shell; a fixing ring is provided on the rear outer sleeve of the warhead shell, and a plurality of pairs of wing mounting ear plates are fixedly provided on the outer wall of the fixing ring, and the plurality of pairs of wing mounting ear plates are evenly arranged along the circumferential direction of the fixing ring; a pin shaft hole is provided on the wing mounting ear plate, a pin shaft is installed in the pin shaft hole, a wing is installed on the pin shaft, and the wing can rotate with the pin shaft as the rotation axis; a torsion spring is installed at the connection between the wing and the wing mounting ear plate; a plurality of notches are provided on the fixing ring, and the plurality of notches are evenly arranged along the circumferential direction of the fixing ring, and the notches and the wing are alternately distributed; the number of the wing plates is four to eight, and the number of the notches is the same as that of the wing plates.

[0006] The fixing ring, wing mounting ear plate, pin shaft, wing, notch and torsion spring together constitute a device for reducing the penetration angle of attack; when the warhead with the device for reducing the penetration angle of attack is in an initial state, the wing is tightly attached to the outer surface of the warhead shell; when the warhead with the device for reducing the penetration angle of attack penetrates the target, the wing rotates outward and gradually moves away from the outer surface of the warhead shell.

[0007] The present invention also includes the following technical features:

[0008] Preferably, the number of the fins is four, and the angle between two adjacent fins is 90°; the number of the notches is four, and the angle between adjacent fins and notches is 45°.

[0009] Specifically, the head end of the warhead shell is closed and the tail end is open, a rear end cover is installed in the tail end of the warhead shell, a fuze is installed at the center of the rear end cover, and the warhead shell is filled with warhead charge.

[0010] Specifically, the warhead shell includes an integrated warhead shell tip, a warhead shell head, a warhead shell middle and a warhead shell tail; the fixing ring sleeve is arranged outside the warhead shell tail; the rear end cover and the fuze are installed in the warhead shell tail, and the enclosed space surrounded by the rear end cover, the fuze and the warhead shell is a charge chamber, which is used to be filled with warhead charge.

[0011] Specifically, the tip of the warhead shell is a solid frustoconical structure, which is surrounded by an inwardly concave arc surface, and the diameter of the frustoconical structure gradually increases from the beginning to the end; the head of the warhead shell is a hollow frustoconical structure, which is surrounded by an outwardly convex arc surface, and the diameter of the frustoconical structure gradually increases from the beginning to the end; the middle part of the warhead shell and the tail part of the warhead shell are both hollow cylindrical structures.

[0012] Specifically, the wing comprises an integrated wing body and a wing mounting rod; a wing pin shaft hole is provided on the wing mounting rod, and a pin shaft is provided in the wing pin shaft hole.

[0013] Compared with the prior art, the present invention has the following technical effects:

[0014] The present invention is assembled to the shell body at the tail of the warhead by means of a fixing ring connection. The wing is connected to the fixing ring by a pin and a torsion spring is installed at the connection. The attitude deflection of the warhead when penetrating the target is adjusted by means of four wing pieces on the fixing ring. When the warhead deflects, the wing pieces on the fixing ring will hit the hole produced by the penetration, giving the projectile a righting torque to make the warhead deflect in the opposite direction, thereby reducing the angle of attack produced during the penetration process and improving the destructive effect of the weapon. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the warhead with a device to reduce the penetration angle of attack.

[0016] Figure 2 It is a schematic diagram of the wing state when the warhead is in the initial state.

[0017] Figure 3 Schematic diagram of the wing status when the warhead penetrates the target.

[0018] Figure 4 This is a schematic diagram of the structure of the warhead shell.

[0019] Figure 5 Schematic diagram of the structure of the wing.

[0020] The meanings of the various numbers in the figure are: 1-warhead housing, 2-rear end cover, 3-fuze, 4-warhead charge, 5-fixing ring, 6-wing mounting ear plate, 7-pin shaft, 8-wing, 9-notch.

[0021] 101-warhead shell tip, 102-warhead shell head, 103-warhead shell middle, 104-warhead shell tail, 105-charge chamber.

[0022] 801-wing body, 802-wing mounting rod, 803-wing pin shaft hole.

[0023] The specific contents of the present invention are further explained in detail below in conjunction with embodiments. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] Embodiment 1:

[0027] This embodiment provides a warhead with a device for reducing the penetration angle of attack, such as Figures 1 to 3As shown, it includes a warhead shell 1; a fixing ring 5 is provided on the rear outer sleeve of the warhead shell 1, and a plurality of pairs of winglet mounting ear plates 6 are fixedly provided on the outer wall of the fixing ring 5, and the plurality of pairs of winglet mounting ear plates 6 are evenly arranged along the circumferential direction of the fixing ring 5; a pin shaft hole is provided on the winglet mounting ear plate 6, a pin shaft 7 is installed in the pin shaft hole, a winglet 8 is installed on the pin shaft 7, and the winglet 8 can rotate with the pin shaft 7 as the rotation axis; a torsion spring is installed at the connection between the winglet 8 and the winglet mounting ear plate 6; a plurality of notches 9 are provided on the fixing ring 5, and the plurality of notches 9 are evenly arranged along the circumferential direction of the fixing ring 5, and the notches 9 and the winglets 8 are alternately distributed; the fixing ring 5, the winglet mounting ear plate 6, the pin shaft 7, the winglet 8 and the notch 9 together constitute a device for reducing the penetration angle of attack; when the warhead with the device for reducing the penetration angle of attack is in the initial state, the winglet 8 is tightly attached to the outer surface of the warhead shell 1; when the warhead with the device for reducing the penetration angle of attack penetrates the target, the winglet 8 rotates outward and gradually moves away from the outer surface of the warhead shell 1.

[0028] As a specific solution of this embodiment, Figure 2 and Figure 3 As shown, the number of fins 8 is four, and the angle between two adjacent fins 8 is 90°. In this embodiment, if the number of fins is too small, it is impossible to generate a righting torque for the deviation of the warhead in all directions during the penetration process, resulting in a poor penetration effect; if the number of fins is too large (more than eight), the overall structural weight will be increased while the penetration resistance will be increased, resulting in a decrease in the penetration effect, and the cost will also increase accordingly.

[0029] As a specific solution of this embodiment, Figure 2 and Figure 3 As shown, the number of notches 9 is four, and the angle between adjacent fins 8 and notches 9 is 45°. In this embodiment, if the number of notches is too small, the resistance during penetration will be greatly increased, and the force on the warhead will be uneven during penetration, affecting the penetration effect of the warhead; if the number of notches is too large, the overall strength of the fixing ring will be insufficient, affecting the device's straightening effect on the warhead.

[0030] As a specific solution of this embodiment, the fixing ring 5 is made of steel. In this embodiment, the fixing ring 5 is made of a suitable material and four notches 9 are provided on the fixing ring 5, which can ensure that the fixing ring 5 breaks after the warhead passes through the penetration hole, thereby ensuring that the penetration effect of the warhead is not affected while reducing the deflection.

[0031] As a specific solution of this embodiment, Figures 1 to 3 As shown, it includes a warhead shell 1, the head end of the warhead shell 1 is closed and the tail end is open, a rear end cover 2 is installed in the tail end of the warhead shell 1, a fuze 3 is installed at the center of the rear end cover 2, and the warhead shell 1 is filled with warhead charge 4.

[0032] As a specific solution of this embodiment, the warhead shell 1 is made of conventional high-strength special steel known in the prior art to ensure that the structural strength of the warhead can withstand extrusion and deformation during the penetration process without being damaged.

[0033] As a specific solution of this embodiment, the warhead charge 4 uses conventional high-energy explosives known in the prior art, such as explosives containing RDX, octogen or other energetic materials, to ensure that the warhead can effectively damage the target.

[0034] As a specific solution of this embodiment, Figure 4 As shown, the warhead shell 1 includes an integrated warhead shell tip 101, a warhead shell head 102, a warhead shell middle 103 and a warhead shell tail 104; the fixing ring 5 is sleeved on the outside of the warhead shell tail 104; the rear end cover 2 and the fuze 3 are installed in the warhead shell tail 104, and the enclosed space surrounded by the rear end cover 2, the fuze 3 and the warhead shell 1 is a charge chamber 105, which is used to be filled with warhead charge 4.

[0035] As a specific scheme of this embodiment, the warhead shell tip 101 is a solid frustoconical structure, which is surrounded by an inwardly concave arc surface, and the diameter of the frustoconical structure gradually increases from the beginning to the end; the warhead shell head 102 is a hollow frustoconical structure, which is surrounded by an outwardly convex arc surface, and the diameter of the frustoconical structure gradually increases from the beginning to the end; the warhead shell middle part 103 and the warhead shell tail part 104 are both hollow cylindrical structures.

[0036] As a specific solution of this embodiment, Figure 5 As shown, the wing 8 includes an integrated wing body 801 and a wing mounting rod 802, and the wing body 801 has a flat rectangular structure; a wing pin hole 803 is opened on the wing mounting rod 802, and a pin 7 is arranged in the wing pin hole 803.

[0037] The assembly process and working process of the warhead with the device for reducing the penetration angle of attack of the present invention are as follows:

[0038] Step 1: Warhead assembly and charging:

[0039] The fixing ring 5 is pre-processed on the outside of the warhead shell 1, and then the wing 8 is inserted into the wing mounting ear plate 6, and then the pin shaft 7 is inserted into the wing mounting ear plate 6 and the wing 8; finally, the warhead charge 4 is loaded from the open tail end of the warhead shell 1, and after loading is completed, the rear end cover 2 and the fuze 3 are installed to ensure that the charge cavity is sealed and the warhead charge 4 does not leak.

[0040] Step 2: The warhead penetrates the target:

[0041] Since a torsion spring is installed at the connection between the wing 8 and the wing mounting lug 6, if the warhead is launched from a deep tube weapon, the wing can be fixed to the shell with a plastic tie, and a shear groove is installed at the mouth of the deep tube. When the weapon is launched from the deep tube, after the warhead is ejected, the shear groove at the mouth of the deep tube cuts off the tie, and the wing automatically returns to the normal position. When the weapon is launched from a fixed launcher or a rack, it can be used directly without folding the wing.

[0042] like Figure 2 As shown, in the initial state, the wing 8 is folded and attached to the warhead shell 1; Figure 3 As shown, when the warhead penetrates the target, the wing 8 unfolds, and the warhead deflects after penetrating the target. At this time, the projectile passes through the target at a certain angle, and the wing 8 at the rear of the warhead also deflects. When the tail of the warhead passes through the penetration hole, the wing 8 with a deflected direction will touch the periphery of the penetration hole, providing a correction moment to the warhead and straightening the warhead, thereby reducing the angle of attack generated after hitting the target. Finally, the fixing ring 5 will be broken by a large force when straightening the warhead, which will not affect the subsequent damage process of the warhead.

[0043] Effect verification of Example 1:

[0044] Computer simulation tests were used to verify the penetration effect of the present invention. The test group had a warhead with a device for reducing the penetration angle of attack, and the control group had a warhead without the device for reducing the penetration angle of attack. The results showed that when the warhead of the present embodiment penetrated the target, the angle of attack was 0°, while the angle of attack of the control group was 12°; after calculation, it was found that the penetration effect of the warhead of the present embodiment was improved by about 20% compared with the control group. The above results show that the present invention is effective.

[0045] Comparative Example 1:

[0046] This comparative example provides a warhead with a device for reducing the penetration angle of attack, and its specific structure is basically the same as that of Example 1, except that the number of winglets 8 is three.

[0047] Effect verification of comparative example 1:

[0048] Computer simulation tests were used to verify the penetration effect of the present invention. The test group was a warhead with a device for reducing the penetration angle of attack of three fins, and the control group was a warhead with a device for reducing the penetration angle of attack of Example 1. The results showed that when the warhead of this comparative example penetrated the target, the angle of attack was 5°, and the warhead could not be straightened. The reason was that the number of fins 8 was too small and insufficient torque was generated. After calculation, it was found that compared with the warhead with a device for reducing the penetration angle of attack of Example 1, the penetration effect of the warhead of this comparative example was reduced by about 8%. The above results show that the number of fins 8 will affect the penetration effect of the warhead.

Claims

1. A warhead with a device for reducing penetration angle of attack, comprising a warhead housing (1), characterized in that: The tail outer cover of the warhead shell (1) is provided with a fixing ring (5), and a plurality of pairs of wing mounting ear plates (6) are fixedly provided on the outer wall of the fixing ring (5), and the plurality of pairs of wing mounting ear plates (6) are evenly arranged along the circumferential direction of the fixing ring (5); a pin shaft hole is opened on the wing mounting ear plate (6), a pin shaft (7) is installed in the pin shaft hole, a wing (8) is installed on the pin shaft (7), and the wing (8) can rotate with the pin shaft (7) as the rotation axis; a torsion spring is installed at the connection between the wing (8) and the wing mounting ear plate (6); The fixing ring (5) is provided with a plurality of notches (9), the plurality of notches (9) are evenly arranged along the circumferential direction of the fixing ring (5), and the notches (9) and the fins (8) are alternately distributed; the number of the fins (8) is four to eight, and the number of the notches (9) is the same as the number of the fins (8); The fixing ring (5), the wing mounting ear plate (6), the pin shaft (7), the wing (8), the notch (9) and the torsion spring together constitute a device for reducing the penetration angle of attack; when the warhead with the device for reducing the penetration angle of attack is in an initial state, the wing (8) is tightly attached to the outer surface of the warhead shell (1); when the warhead with the device for reducing the penetration angle of attack penetrates a target, the wing (8) rotates outward and gradually moves away from the outer surface of the warhead shell (1).

2. The warhead with a device for reducing penetration angle of attack as claimed in claim 1, characterized in that: The number of the fins (8) is four, and the angle between two adjacent fins (8) is 90°; the number of the notches (9) is four, and the angle between adjacent fins (8) and notches (9) is 45°.

3. The warhead with a device for reducing penetration angle of attack as claimed in claim 1, characterized in that: The warhead shell (1) has a closed head end and an open tail end, a rear end cover (2) is installed in the tail end of the warhead shell (1), a fuze (3) is installed at the center of the rear end cover (2), and the warhead shell (1) is filled with warhead charge (4).

4. The warhead with a device for reducing penetration angle of attack as claimed in claim 3, characterized in that: The warhead shell (1) comprises an integrated warhead shell tip (101), a warhead shell head (102), a warhead shell middle (103) and a warhead shell tail (104); the fixing ring (5) is sleeved outside the warhead shell tail (104); the rear end cover (2) and the fuze (3) are installed in the warhead shell tail (104); the closed space enclosed by the rear end cover (2), the fuze (3) and the warhead shell (1) is a charge chamber (105), and the charge chamber (105) is used to be filled with warhead charge (4).

5. The warhead with a device for reducing penetration angle of attack as claimed in claim 1, characterized in that: The warhead shell tip (101) is a solid truncated cone-like structure, which is surrounded by an inwardly concave arc surface, and the diameter of the truncated cone-like structure gradually increases from the beginning to the end; the warhead shell head (102) is a hollow truncated cone-like structure, which is surrounded by an outwardly convex arc surface, and the diameter of the truncated cone-like structure gradually increases from the beginning to the end; the warhead shell middle part (103) and the warhead shell tail part (104) are both hollow cylindrical structures.

6. The warhead with a device for reducing penetration angle of attack as claimed in claim 1, characterized in that: The wing (8) comprises an integrally arranged wing body (801) and a wing mounting rod (802); a wing pin hole (803) is provided on the wing mounting rod (802), and a pin (7) is provided in the wing pin hole (803).

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