Striking device for inert and active jet flow series penetration

Abstract

The invention relates to a striking device for inert and active jet series penetration, belongs to the technical field of ammunition, and solves the problems that in the prior art, shock wave overpressure is formed by front-stage detonation, detonation products and fragments hinder a rear-stage follow-up energy body; and the follow-up energy body at the rear stage cannot smoothly invade through holes formed by explosion of the energy body at the front stage in a follow-up manner. The device comprises a front-stage unit, a rear-stage unit, a fixing sleeve, a flow guide body and a flow guide plate, the front-stage unit comprises a shaped charge liner and an initiating explosive, and the initiating explosive can be exploded, so that the shaped charge liner becomes metal jet flow, and a through hole is formed in a target; and the rear-stage unit is drilled into the target through the through hole to strike the target. Axial detonation waves and fragments generated by explosion of the initiating explosive can be dispersed in the radial direction of the conical surface of the flow guide body of the striking device, the detonation waves and the fragments can be discharged out of the fixing sleeve through the dredging holes, the influence of the detonation waves and the fragments on the rear-stage unit is reduced, and the rear-stage unit is prevented from changing the direction.

Description

Technical Field

[0001] The invention belongs to the technical field of ammunition, and in particular relates to a striking device for serial penetration of inert and active jets. Background Art

[0003] For the penetration of high-strength and ultra-hard targets, the energy body adopts a composite structure of breaking and penetrating, which is composed of a front-stage energy body and a rear-stage penetrating blasting energy body. The design of the front-stage energy body takes into account the penetration depth of the energy body and the aperture of the energy body, providing a good ballistic environment for the reliable follow-up of the rear-stage energy body; according to the aperture of the front-stage energy body and the characteristics of the projectile, the design of the rear-stage energy body must take into account the characteristics of the follow-up energy body and the single-stage kinetic energy penetrating energy body, ensuring that the rear-stage energy body can quickly adjust its posture and reliably follow the channel opened by the front stage, and also ensuring that when the rear-stage energy body penetrates the target, the penetration resistance is minimized and a certain ballistic stability is guaranteed.

[0004] For the integrated penetration and destruction striking device, the backward energy gathering effect of the large amount of high-energy charge loaded in the front stage after the explosion is significant. The shock wave overpressure, detonation products and fragments formed by the front stage explosion may damage or detonate the rear stage following energy body on the one hand; on the other hand, it may cause the speed of the rear stage following energy body to decrease or the posture to change, so that it cannot smoothly follow and invade the target penetration formed by the explosion of the front stage energy body.

[0005] Therefore, there is an urgent need for a striking device that can penetrate in series with inert and active jets to solve the problem in the prior art that the shock wave overpressure, detonation products and fragments formed by the preceding explosion hinder the succeeding energy body, and the succeeding energy body cannot smoothly follow and invade the perforation formed by the explosion of the preceding energy body. Summary of the invention

[0006] In view of the above analysis, the present invention aims to provide a striking device for inert and active jet penetration in series, so as to solve the problem in the prior art that the shock wave overpressure, detonation products and fragments formed by the preceding explosion hinder the succeeding energy body, and the succeeding energy body cannot smoothly follow and invade the perforation formed by the explosion of the preceding energy body.

[0007] The purpose of the present invention is mainly achieved through the following technical solutions:

[0008] An inert and active jet series penetration striking device comprises a front-stage unit, a rear-stage unit, a fixed sleeve, a guide body and a guide plate, wherein the front-stage unit comprises a charge liner and a detonator, wherein the detonator can explode to make the charge liner become a metal jet and form a perforation on the target; the rear-stage unit uses the perforation to drill into the interior of the target and strike the target;

[0009] One end of the fixing sleeve is connected to the outer wall of the front-stage unit, and the other end of the fixing sleeve is connected to the outer wall of the rear-stage unit; the guide body is arranged in the fixing sleeve;

[0010] The guide body is a cone, and the surface of the cone is a concave cone surface facing the central axis, and the axial detonation wave and fragments generated by the explosion of the detonator can be dispersed in the radial direction of the concave cone surface of the guide body;

[0011] The guide plate is arranged on the conical surface of the guide body, there are a plurality of guide plates, and the guide plates are evenly distributed around the central axis, the guide plates are curved guide plates, the detonation wave can push the guide plates circumferentially, and the guide plates can drive the guide body to rotate around the central axis;

[0012] The fixing sleeve is composed of a plurality of sub-cylinder bodies, and the plurality of sub-cylinder bodies can be separated.

[0013] Furthermore, it also includes a traction rope, one end of which is fixedly connected to the front-stage unit, and the other end of which is connected to the cone tip.

[0014] Furthermore, it also includes a cushion block, one end of which is connected to the flow guide body, and the other end of which is connected to the subsequent unit; the cushion block is made of porous material, can shrink axially and absorb the kinetic energy of the flow guide body.

[0015] Furthermore, a drainage hole is opened on the fixing sleeve, and the detonation wave and fragments can be discharged from the fixing sleeve through the drainage hole; the sub-cylinder body includes a first section, a second section and a third section, and the first section is connected to the third section through the second section.

[0016] Furthermore, the front-stage unit includes a front-stage body and an annular groove, wherein the annular groove is arranged on the outer wall of the front-stage body; a flange is arranged on the inner wall of the first section, and the flange can be connected to the annular groove.

[0017] Furthermore, the rear-stage unit includes a rear-stage body and a connecting block, and the connecting block is arranged on the outer wall of the rear-stage body; the third section is provided with a connecting hole, and the connecting hole can be connected to the connecting block, thereby connecting the sub-cylinder body with the rear-stage unit.

[0018] Furthermore, it also includes a hook unit, which includes a main connecting rod and an insert block. The main connecting rod includes a hollow portion, and the insert block is arranged on the side wall of the hollow portion; the connecting block is provided with an insert block hole, and the insert block can be connected to the insert block hole.

[0019] Furthermore, the flow guide body includes a flow guide body and a flow guide connecting rod groove, and the flow guide connecting rod groove is arranged on the flow guide body.

[0020] Furthermore, the hook unit also includes a guide rod, which is arranged on the main rod, and can be connected to the guide rod groove. The guide body can push the guide rod to separate the insert block from the connecting block.

[0021] Furthermore, the fixing sleeve further comprises a rotation groove, the rotation groove is arranged on the third section, and the flow guide connecting rod can slide on the rotation groove.

[0022] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0023] (1) Compared with the prior art in which the shock wave overpressure, detonation products and fragments generated by the front-stage detonation hinder the energy body of the rear-stage, the axial detonation wave and fragments generated by the explosion of the detonator can be dispersed along the radial direction of the conical surface of the guide body, preventing the detonation wave and fragments from affecting the rear-stage unit; the detonation wave and fragments can be discharged from the fixing sleeve through the drainage hole, reducing the adverse effects of the detonation wave and fragments on the rear-stage unit and preventing the rear-stage unit from changing the direction of movement;

[0024] (2) The axial detonation wave generated by the explosion of the explosive can push the guide plate of the present invention, and the guide plate can drive the guide body to rotate around the central axis, thereby converting the axial kinetic energy of the detonation wave into the kinetic energy of the self-rotation of the guide body. The guide body can absorb the energy of the detonation wave and weaken the influence of the detonation wave in the axial direction; the rotating guide plate can strike the fragments generated by the explosion of the explosive, and radially throw the fragments out of the guide body to prevent the fragments from striking the subsequent units;

[0025] (3) The fixing sleeve of the striking device of the present invention is a decomposable fixing sleeve; after the front-stage unit explodes, when the guide body moves toward the rear-stage unit, the guide body can push the guide connecting rod, thereby separating the plug block from the connecting block, and the multiple sub-cylinders are radially separated from the rear-stage unit under the impact of the explosion wave, so that there is no obstacle on the discharge path of the explosion wave and fragments, thereby improving the discharge efficiency of the explosion wave and fragments;

[0026] (4) The inner wall of the first section of the present invention is provided with a flange, which can be connected to the annular groove, so as to connect the sub-cylinder body to the front-stage unit and facilitate the radial separation of the sub-cylinder body from the front-stage body; the third section is provided with a connecting hole, which can be connected to the connecting block, so as to connect the sub-cylinder body to the rear-stage unit and facilitate the radial separation of the sub-cylinder body from the rear-stage unit;

[0027] (5) The plug-in block of the hook unit of the present invention can be connected to the plug-in block hole to prevent the striking device from disintegrating.

[0028] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can become obvious from the description or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings are only for the purpose of illustrating specific embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0030] Figure 1 It is a schematic diagram of the overall structure of the striking device of the present invention;

[0031] Figure 2 It is a schematic diagram of the exploded structure of the striking device of the present invention;

[0032] Figure 3 It is a schematic diagram of the exploded structure of the connecting mechanism of the present invention.

[0033] Reference numerals:

[0034] 1-front stage unit; 2-rear stage unit; 3-fixing sleeve; 4-guiding body; 5-traction rope; 6-guiding plate; 7-pad; 8-hook unit; 11-front stage body; 12-annular groove; 21-rear stage body; 22-connecting block; 31-large cylinder section; 32-middle cylinder section; 33-small cylinder section; 34-drainage hole; 35-first section; 36-third section; 37-connecting hole; 38-rotating groove; 41-guiding body; 42-guiding connecting rod groove; 81-main connecting rod; 82-insertion block; 83-guiding connecting rod. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0036] Example 1

[0037] A specific embodiment of the present invention, as Figure 1 As shown, a striking device for inert and active jet penetration in series (hereinafter referred to as the striking device) is disclosed, including a front-stage unit 1, a rear-stage unit 2 and a connecting mechanism. The front-stage unit 1 is connected to the rear-stage unit 2 through the connecting mechanism. The front-stage unit 1 includes a charge liner and an explosive. When the explosive explodes, the charge liner can become a metal jet to form a perforation on the target; the rear-stage unit 2 uses the perforation channel to drill into the interior of the target to strike the target.

[0038] Preferably, both the front-stage unit 1 and the rear-stage unit 2 are cylindrical. After the front-stage unit 1 is detonated, the detonation wave and fragments generated by the explosion of the explosive can have an adverse effect on the rear-stage unit 2 if the detonation wave and fragments generated in the connecting mechanism cannot be guided and discharged, and even prevent the rear-stage unit 2 from drilling into the perforation.

[0039] The front-stage unit 1 is made of zirconium-based active material. The zirconium-containing active jet formed under the action of the detonator generates high temperature inside the target, killing the internal living force; the rear-stage unit 2 is made of inert metal (such as copper), and the inert jet formed continues to penetrate the target.

[0040] Preferably, if Figure 2 As shown, in order to reduce the adverse effects of the explosion of the explosive on the subsequent unit 2, the connection mechanism includes a fixed sleeve 3, a guide body 4 and a traction rope 5, one end of the fixed sleeve 3 is connected to the outer wall of the front unit 1, and one end of the fixed sleeve 3 is connected to the outer wall of the subsequent unit 2. The fixed sleeve 3 is used to connect the front unit 1 and the subsequent unit 2, and make the front unit 1 and the subsequent unit 2 coaxial so that the subsequent unit 2 is aligned with the perforation channel. The guide body 4 is arranged in the fixed sleeve 3 and is fixedly connected to the front unit 1 through the traction rope 5. The guide body 4 is a cone, and the traction rope 5 is connected to the tip of the cone. The axial detonation wave and fragments generated by the explosion of the explosive can be dispersed along the cone surface of the guide body 4 to prevent the detonation wave and fragments from affecting the subsequent unit 2. When the striking device of this embodiment is launched, the traction rope 5 is used to prevent the guide body 4 from detaching from the front unit 1 and preventing the guide body 4 from hitting the subsequent unit 2.

[0041] Preferably, the diameter of the front-stage unit 1 is larger than the diameter of the rear-stage unit 2. The fixed sleeve 3 is a conical sleeve, including a large sleeve section 31, an intermediate sleeve section 32 and a small sleeve section 33. The large sleeve section is connected to the outer wall of the front-stage unit 1, and the small sleeve section is connected to the outer wall of the rear-stage unit 2. The outer diameter of the guide body 4 is equal to the inner diameter of the small sleeve section 33. In order to guide the detonation wave and fragments out of the connection mechanism, a drainage hole 34 is provided on the intermediate sleeve section 31. The detonation wave and fragments can be discharged from the fixed sleeve 3 through the drainage hole 34, reducing the adverse effects of the detonation wave and fragments on the rear-stage unit 2 and preventing the rear-stage unit 2 from changing the direction of movement.

[0042] Preferably, the conical surface of the guide body 4 is a concave conical surface toward the central axis, which can change the flight direction of the detonation wave and fragments generated by the explosion of the explosive, so that the detonation wave and fragments are dispersed along the radial direction of the concave conical surface and are guided to the guide hole 34.

[0043] Preferably, a guide plate 6 is provided on the conical surface of the guide body 4. There are multiple guide plates 6, which are evenly distributed around the central axis. The guide plates 6 are curved guide plates. The axial detonation wave generated by the explosion of the explosive can push the guide plate 6, and the guide plate 6 can drive the guide body 4 to rotate around the central axis, thereby converting the axial kinetic energy of the detonation wave into the kinetic energy of the rotation of the guide body 4. The guide body 4 can absorb the energy of the detonation wave and weaken the impact of the detonation wave in the axial direction. The rotating guide plate 6 can strike the fragments generated by the explosion of the explosive, and radially throw the fragments out of the guide body 4 to prevent the fragments from striking the subsequent unit 2.

[0044] Preferably, after the front-stage unit 1 explodes, the flow guide 4 will move toward the rear-stage unit 2. In order to disable and slow down the flow guide 4 and prevent the flow guide 4 from obstructing the rear-stage unit 2, the striking device of this embodiment also includes a cushion block 7, one end of the cushion block 7 is connected to the flow guide 4, and the other end of the cushion block 7 is connected to the rear-stage unit 2. The cushion block 7 can be compressed to absorb the kinetic energy of the flow guide 4, and the speed of the flow guide 4 is changed to the same as that of the rear-stage unit 2, and then the target is struck together with the rear-stage unit 2.

[0045] Preferably, the pad 7 is made of a porous material. In some optional embodiments, the pad 7 is made of a negative Poisson's ratio material, which can shrink axially to absorb the kinetic energy of the flow guide 4.

[0046] Compared with the prior art, the shock wave overpressure, detonation products and fragments formed by the front-stage detonation hinder the energy body of the rear stage, the axial detonation wave and fragments generated by the explosion of the detonator can be dispersed along the radial direction of the conical surface of the guide body 4 to prevent the detonation wave and fragments from affecting the rear-stage unit 2; the detonation wave and fragments can be discharged from the fixed sleeve 3 through the drainage hole 34, reducing the adverse effects of the detonation wave and fragments on the rear-stage unit 2 and preventing the rear-stage unit 2 from changing the direction of movement; the axial detonation wave generated by the explosion of the detonator can push the guide plate 6 and make the guide body 4 rotate around the central axis, thereby converting the axial kinetic energy of the detonation wave into the kinetic energy of the circumferential rotation of the guide body 4, and the guide body 4 can absorb the energy of the detonation wave and weaken the influence of the detonation wave in the axial direction. The rotating guide plate 6 can strike the fragments generated by the explosion of the detonator and radially throw the fragments out of the guide body 4 to prevent the fragments from striking the rear-stage unit 2.

[0047] Example 2

[0048] In Embodiment 1, the detonation wave and fragments are discharged from the fixing sleeve 3 through the drainage hole 34, but the obstacle of the fixing sleeve 3 still exists on the drainage path of the detonation wave and fragments. Figure 3As shown, based on the embodiment 1, the striking device of this embodiment improves the connection mechanism, and the fixing sleeve 3 is changed into a decomposable fixing sleeve, so that there is no obstacle on the evacuation path of the blast wave and the fragments, and the evacuation efficiency of the blast wave and the fragments is improved.

[0049] Preferably, the fixing sleeve 3 is composed of a plurality of sub-cylinder bodies, which include a first section 35 , a second section and a third section 36 . The first section 35 , the second section and the third section 36 are all arc sections, and the first section 35 is connected to the third section 36 through the second section.

[0050] Preferably, in order to connect the sub-cylinder body to the front-stage unit 1, the front-stage unit 1 includes a front-stage body 11 and an annular groove 12, and the annular groove 12 is arranged on the outer wall of the front-stage body 11. A flange is arranged on the inner wall of the first section 35, and the flange can be connected to the annular groove 12, so as to connect the sub-cylinder body to the front-stage unit 1 and facilitate the radial separation of the sub-cylinder body and the front-stage body 11.

[0051] Preferably, in order to connect the sub-cylinder body with the rear-stage unit 2, the rear-stage unit 2 includes a rear-stage body 21 and a connecting block 22, and the connecting block 22 is arranged on the outer wall of the rear-stage body 21. The third section 36 is provided with a connecting hole 37, and the connecting hole 37 can be connected to the connecting block 22, so as to connect the sub-cylinder body with the rear-stage unit 2 and facilitate the radial separation of the sub-cylinder body and the rear-stage unit 2.

[0052] Preferably, in order to prevent the sub-cylinder body from being separated from the rear-stage unit 2, the striking device of this embodiment further includes a hook unit 8, which can be connected to the connecting block 22 to prevent the sub-cylinder body from being separated from the rear-stage unit 2.

[0053] Preferably, the hook unit 8 includes a main connecting rod 81, an insert block 82 and a flow guide connecting rod 83. The main connecting rod 81 is rotatably connected to the third section 36. The insert block 82 and the flow guide connecting rod 83 are respectively arranged at both ends of the main connecting rod 81. The connecting block 22 is provided with an insert block hole, and the insert block 82 can be connected to the insert block hole. After the sub-cylinder body is connected to the rear-stage unit 2, the insert block 82 can prevent the third section 36 from being separated from the connecting block 22, thereby preventing the sub-cylinder body from being separated from the rear-stage unit 2, and preventing the striking device of this embodiment from disintegrating; the flow guide connecting rod 83 can be connected to the flow guide body 4. After the front-stage unit 1 explodes, the flow guide body 4 rotates and pushes the flow guide connecting rod 83, so that the main connecting rod 81 rotates, thereby separating the insert block 82 from the connecting block 22.

[0054] Preferably, after the plug block 82 is connected to the plug block hole, the main connecting rod 81 is connected to the outer wall of the third section 36. In order to enable the guide connecting rod 83 to be connected to the guide body 4, the fixed sleeve 3 also includes a rotating groove 38, and the rotating groove 38 is arranged on the third section 36. The guide connecting rod 83 can slide on the rotating groove 38 and be connected to the guide body 4.

[0055] Preferably, the flow guide body 4 includes a flow guide body 41 and a flow guide connecting rod groove 42, the flow guide connecting rod groove 42 is provided on the flow guide body 41, and the flow guide connecting rod groove 42 is used to connect with the flow guide connecting rod 83, so that the flow guide body 4 can push the hook unit 8 to separate the plug block 82 from the connecting block 22. The flow guide connecting rod 83 can slide along the flow guide connecting rod groove 42, and the flow guide connecting rod 83 can be connected with the flow guide connecting rod groove 42 even if the flow guide body 4 moves axially.

[0056] When assembling the striking device of this embodiment, the user can successively connect multiple sub-cylinder bodies to the front-stage unit 1 and the rear-stage unit 2. First, connect the flange to the annular groove 12 to connect the sub-cylinder body to the front-stage unit 1, and then connect the connecting hole 37 to the connecting block 22 to connect the sub-cylinder body to the rear-stage unit 2; rotate the main connecting rod 81 to the third section 36, and then insert the plug block 82 into the plug block hole, the guide connecting rod 83 can be connected to the guide connecting rod groove 42, and the guide connecting rod 83 can be connected to the rotating groove 38, and finally complete the assembly of the striking device of this embodiment. When in use, the front-stage unit 1 explodes, and the detonation wave pushes the guide body 4 to move toward the rear-stage unit 2. The guide connecting rod groove 42 pushes the guide connecting rod 83 to rotate the main connecting rod 81, thereby separating the plug block 82 from the connecting block 22. The multiple sub-cylinders are radially separated from the rear-stage unit 2 under the impact of the detonation wave. There is no obstacle on the path of the detonation wave and fragments, thereby improving the efficiency of guiding the detonation wave and fragments.

[0057] Compared with the embodiment 1, which only utilizes the drainage hole 34 to discharge the blast wave and fragments out of the fixed sleeve 3, the fixed sleeve 3 of the present embodiment is changed into a decomposable fixed sleeve; after the explosion of the front-stage unit 1, the guide body 4 rotates and pushes the guide connecting rod 83, thereby separating the plug block 82 from the connecting block 22, and the multiple sub-cylinder bodies are radially separated from the rear-stage unit 2 under the impact of the blast wave, so that there is no obstacle on the drainage path of the blast wave and fragments, thereby improving the drainage efficiency of the blast wave and fragments; a flange is provided on the inner wall of the first section 35, and the flange can be connected to the annular groove 12, so as to connect the sub-cylinder body to the front-stage unit 1, and facilitate the radial separation of the sub-cylinder body from the front-stage body 11; a connecting hole 37 is provided on the third section 36, and the connecting hole 37 can be connected to the connecting block 22, so as to connect the sub-cylinder body to the rear-stage unit 2, and facilitate the radial separation of the sub-cylinder body from the rear-stage unit 2; the plug block 82 of the hook unit 8 can be connected to the plug block hole to prevent the strike device from disintegrating.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A striking device for inert and active jet penetration in series, characterized in that: It comprises a front-stage unit (1), a rear-stage unit (2) and a fixing sleeve (3), wherein the front-stage unit (1) uses explosives to penetrate a target; and the rear-stage unit (2) uses kinetic energy to drill into the interior of the target.

2. The strike device for inert and active jet penetration in series according to claim 1 is characterized in that: One end of the fixing sleeve (3) is connected to the outer wall of the front-stage unit (1), and the other end of the fixing sleeve (3) is connected to the outer wall of the rear-stage unit (2).

3. The strike device for inert and active jet penetration in series according to claim 1 is characterized in that: It also comprises a flow guide (4), wherein the flow guide (4) is arranged in the fixing sleeve (3).

4. The strike device for inert and active jet penetration in series according to claim 3 is characterized in that: The guide body (4) is a cone.

5. The strike device for inert and active jet penetration in series according to claim 4 is characterized in that: It also comprises a guide plate (6), wherein the guide plate (6) is arranged on the conical surface of the guide body (4).

6. The strike device for inert and active jet penetration in series according to claim 5, characterized in that: The guide plate (6) is a curved guide plate, and the detonation wave can push the guide plate (6) in a circumferential direction, and the guide plate (6) can drive the guide body (4) to rotate around the central axis.

7. The strike device for inert and active jet penetration in series according to claim 4, characterized in that: It also comprises a traction rope (5), one end of which is fixedly connected to the front-stage unit (1), and the other end of which is connected to the cone tip of the guide body (4).

8. The strike device for inert and active jet penetration in series according to claim 1, characterized in that: The fixing sleeve (3) is composed of a plurality of sub-cylinder bodies, and the plurality of sub-cylinder bodies are separable.

9. The strike device for inert and active jet penetration in series according to claim 3, characterized in that: It also comprises a cushion block (7), one end of which is connected to the guide body (4), and the other end of which is connected to the rear-stage unit (2); the cushion block (7) can shrink axially and absorb the kinetic energy of the guide body (4).

10. The strike device for inert and active jet penetration in series according to claim 1, characterized in that: The fixing sleeve (3) is provided with a drainage hole (34), and the detonation wave and fragments can be discharged from the fixing sleeve (3) through the drainage hole (34).

Images