CN117073468A

CN117073468A - Large-caliber machine gun fixed-distance air-explosion bomb for intercepting micro unmanned aerial vehicle

Info

Publication number: CN117073468A
Application number: CN202310784465.XA
Authority: CN
Inventors: 王雨时; 魏垚鑫; 闻泉
Original assignee: Nanjing University of Science and Technology
Current assignee: Nanjing University of Science and Technology
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-11-17

Abstract

The invention discloses a fixed-distance air-explosion bomb for a large-caliber machine gun, which is mainly used for intercepting a microminiature unmanned aerial vehicle. The head ignition control module mainly comprises a bullet head shell, an induction charging and geomagnetic signal detection revolution fixed-distance ignition control module. The projectile body comprises a middle safety control and detonation module and is connected with a head ignition control module and a tail explosive charging module. The middle safety control and detonation module comprises an isolation ball, a detonator, a split ring, a ball seat, an explosion transfer tube shell, explosion transfer powder, a shear pin and a gasket. The explosive charging module at the tail part comprises a warhead, a sealing ring, a reinforcing cap and explosive charging, namely a warhead. The explosion-proof and delay-release explosion-proof mechanism with the ball rotor and the magnetic anti-recovery recoil safety mechanism and the explosion-transfer sequence are adopted, and the integrated design of the elastic belt and the elastic body structure is adopted, so that the explosion-proof and delay-release explosion-proof mechanism is compact in layout, good in safety and high in elastic body emission intensity.

Description

Large-caliber machine gun fixed-distance air-explosion bomb for intercepting micro unmanned aerial vehicle

Technical Field

The invention belongs to ammunition technology, and particularly relates to a large-caliber machine gun fixed-distance empty bomb which is mainly used for intercepting a microminiature unmanned aerial vehicle.

Background

Compared with the characteristics of simple structure, low cost, small target size and strong concealment of the unmanned aerial vehicle, the ground air defense weapon for man-machine, guided missiles and the like is limited by the conditions of the unmanned aerial vehicle, the effective interception time is short, the target interception rate is low, and the interception cost is high. According to the disclosure of the current situation and the hope that fire interception equipment is applied to the battle of an anti-unmanned aerial vehicle (Ren Yaning, liu Dapeng, dan Xinxin, 2022 unmanned system peak forum (USS 2022) discussion), an air defense missile system of Daoll, an armor bullet gun combination system and a 9K333 willow portable air defense missile are adopted to intercept the unmanned aerial vehicle; wherein 16 vertical-launching 9M338K ground-to-air missiles are equipped with a fire unit of the Tahr-M2; the armor-S1 bullet gun combination system is provided with a 2A72 type 30 mm antiaircraft gun and a 2 part 6 joint ground-to-air missile launcher, and 12 9M311M missiles are provided; the willow portable air defense missile has a range exceeding 6km, is provided with 1 warhead with a weight of 2.5kg, and the whole launching device weighs 17.25kg. The army FIM-92 'poison-stab' air-defense missile has the missile length of 1.52m, the missile diameter of 70mm, the missile weight of 10.1kg, and the launching tube is provided with a handle weight of about 15.2kg; the UK starlight air-defense missile system has the missile length of 1.397m, the missile diameter of 127mm and the outer diameter of a launch barrel of 274mm; the European swallow light multipurpose missile in the United kingdom has the missile length of 1.3m, the missile diameter of 76mm and the missile weight of 13kg. The development has insufficient capability in detecting unmanned aerial vehicles with low flying heights and small radar scattering areas, particularly microminiature unmanned aerial vehicles.

The fixed-distance air explosion fuze multi-beam directional prefabricated fragment warhead forms dense effective fragments, and can efficiently intercept an air target (see, royal Wen Zhong, he Bo, feng Hengzhen, and the like; small-caliber fixed-distance air explosion bomb tail end anti-air interception real-time simulation and cabin opening distance research, and the technical report of the military, 2023-01-02:1-10). The AHEAD ammunition developed in Switzerland is a primary and secondary air defense reverse-guiding ammunition with an electronic time fuze, which is mainly used for a 35mm antiaircraft gun system and is used for dealing with small, low-altitude and fast-moving attack targets such as various ground-to-air missiles and the like with high dense firepower. Specifically, the AHEAD bullet precisely controls the bullet to detonate at the optimal position in front of the target through the programmable electronic time fuze, hundreds of tungsten alloy bullets in the bullet cabin are thrown out under the action of inertia force and centrifugal force at the moment of detonation to form a dense bullet field, and the probability of the AHEAD bullet to hit and the damage performance are remarkably improved (see Wu Yingfeng, research on the damage probability model of an AHEAD ammunition system, nanjing university, 2007). The AHEAD bullet consists of a bullet head shell, a bullet body, a cylindrical tungsten alloy bullet in a bullet cabin, a directional throwing agent, a programmable electronic time fuse at the bottom of the bullet and the like. The programmable electronic time fuse at the bottom of the bullet consists of a receiving antenna, a programmable integrated circuit, a rapid activation battery, a detonator, a mechanical safety and explosion-proof release mechanism and a timing self-destruction mechanism. (see: liu Gang. Application of AHEAD ammunition to air weapons. Fire and command control, 2010, 35 (S1): 87-88+92). The AHEAD ammunition is a complete system, and comprises an AHEAD projectile, an artillery muzzle initial speed signal processing device, an information processing setting device and a fire control computer, wherein the devices work together to finish the firing of the AHEAD ammunition. When AHEAD ammunition is shot, two velocity measuring coils of an initial velocity signal processing device arranged at the muzzle of the artillery generate an induction magnetic field; when the projectile flies through the induction magnetic field, the induction magnetic field can generate induction pulse signals, the pulse signals are transmitted to an information processing setting device at a muzzle after being processed by the signals, the information processing setting device digitizes the signals to obtain initial velocity values of the projectile, the initial velocity values are transmitted to a fire control computer to calculate average initial velocity, and the initial velocity values are compared with the average initial velocity values transmitted back by the fire control computer to correct flight time of the projectile calculated by the fire control computer; the information processing and setting device encodes the corrected flying time of the projectile at the same time, when the projectile is about to fly away from the muzzle, the signal is converted into a pulse signal to be assigned to a programmable electronic time fuse at the bottom of the projectile, and the programmable electronic time fuse is activated to start timing; when the pellet flies to reach the set time, the programmable electronic time fuze generates an ignition signal to detonate the pellet to throw and charge, the projectile body is exploded, and the tungsten alloy bullet in the projectile body is thrown in front to form a bullet field, so that the hit and damage of the AHEAD bullet to the target are realized. The forward scattering of the tungsten alloy bullet in the AHEAD bullet mainly depends on the ballistic velocity of the bullet and does not depend on the throwing charge, so that the directional throwing charge in the bullet is not much, the charge is mainly used for blasting a metal shell with a pre-grooved structure, and the initial velocity of the tungsten alloy bullet is equivalent to the ballistic velocity of the AHEAD bullet. Swiss found during the development of AHEAD bullets that tungsten alloy bullets did not directly destroy the small antitank missiles used in the test, but destroyed the guided class of the test missiles and deflected the missiles (see: liu Tengyi, chen Xi, yang Dong.35 mm high projectile charge development concept and analysis. Gun firing and control journal, 2010,117 (01): 84-88).

The machine gun and the matched ammunition introduced in the handbook of small arms in the world (the firewood master plaited, beijing: weapon industry Press, 1997, 6 th month, 1 st edition) are not specially used for intercepting ammunition of a small unmanned aerial vehicle, and a mature machine gun solid bullet or a double-ended bullet is difficult to form an intercepting bullet screen and effectively intercept.

Disclosure of Invention

The invention provides a large-caliber machine gun fixed-distance air-explosion bomb, which is mainly used for intercepting a microminiature unmanned aerial vehicle and also can be used for attacking exposed living force by taking the principle that a 35 mm-gun AHEAD bomb in Switzerland intercepts a missile and a manned aircraft into consideration. The invention provides a large-caliber machine gun distance air-explosion bomb which is mainly used for intercepting a microminiature unmanned aerial vehicle, and mainly comprises a head electronic distance fuze and a killing warhead of which the tail adopts explosive charge. The electronic module shell of the electronic distance fuze and the structural members of the safety and safety releasing mechanism form a killing fragment together with the warhead shell, and the flying traction speed is superposed to kill the microminiature unmanned aerial vehicle and the living power at fixed distance.

The technical scheme for realizing the invention is as follows: the large-caliber machine gun fixed-distance empty bomb mainly used for intercepting the microminiature unmanned aerial vehicle comprises a head ignition control module, a middle safety control and detonation module, a tail explosive charging module and a bomb body, wherein the brass bomb body is an main structural member of the empty bomb, comprises the middle safety control and detonation module and is connected with the head ignition control module and the tail explosive charging module; the head ignition control module comprises a bullet shell made of titanium alloy, an inductive charging and geomagnetic signal detection revolution fixed-distance ignition control module in the bullet shell, and a nitro film cover plate; the middle safety control and detonation module with the explosion-proof and redundant safety functions comprises a ball rotor explosion-proof and delay release explosion-proof mechanism, a centrifugal safety mechanism and a magnetic anti-recovery squat safety mechanism and explosion-conducting sequence, which are arranged in an inner hole of the projectile body from top to bottom in a combined way, so that the safety function and the space explosion-proof function of the flame detonator in the isolation ball are realized; the tail explosive charging module connected through threads is a warhead of an empty bomb.

Compared with the prior art, the invention has the remarkable advantages that:

(1) By adopting the integrated design concept, the head ignition control module, the middle safety control and detonation module and the tail explosive charging module are integrated into an integral structure by the projectile body, the head ignition control module, the middle safety control and detonation module are arranged in front, the tail explosive charging module is arranged behind, and fragments generated during explosion are integrally arranged forwards, so that the damage effect is strong.

(2) The elastic belt and the elastic body are integrated, the structure is simple, and the emission intensity of the elastic body is effectively improved.

(3) The explosion-proof and delay-release explosion-proof mechanism with the ball rotor is adopted, the output end of the flame detonator is outwards, the dual-axis flame input function is realized, the flame detonator is symmetrically placed in the isolating ball, the ignition reliability is high, the fire transmission channel is blocked in an explosion-proof state, and the fire insulation safety is high.

(4) The magnetic anti-restoring squat safety mechanism and the explosion-conducting sequence are adopted, the gasket is made of a permanent magnet, and the explosion-conducting tube seat made of ferromagnetic materials is tightly sucked after the safety is relieved, so that the explosion-conducting tube seat is prevented from restoring to the safety position after the squat overload disappears, and the magnetic anti-restoring squat safety mechanism is mainly realized by materials, does not occupy more space and has reliable action.

Drawings

Fig. 1 is a schematic longitudinal section view of a large-caliber machine gun distance air-explosion bomb structure mainly used for intercepting a microminiature unmanned aerial vehicle in an assembled state.

FIG. 2 is a schematic view of a section A-A of a large caliber machine gun distance empty explosion ball seat position in an assembled state, which is mainly used for intercepting a microminiature unmanned aerial vehicle.

In the figure, 1 is a bullet shell, 2 is a revolution fixed-distance ignition control module of an induction charging and geomagnetic signal detecting meter, 3 is a cover plate, 4 is a separation ball, 5 is a flame detonator, 6 is a split ring, 7 is a booster shell, 8 is a booster, 9 is a shear pin, 10 is a booster tube seat, 11 is a ball seat, 12 is a bullet body, 13 is a gasket, 14 is a reinforcing cap, 15 is a sealing ring, 16 is an upper explosive charge, 17 is a lower explosive charge, and 18 is a bullet bottom.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on embodiments of the present invention fall within the protection scope of the present invention.

The description as it relates to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In the present invention, the terms "coupled," "fixed," and the like are to be construed broadly unless otherwise specifically indicated and defined. For example, "fixed" may be a fixed connection, a removable connection, or an integral body. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in figures 1 and 2, the large-caliber machine gun distance air-explosion bomb mainly used for intercepting a microminiature unmanned aerial vehicle comprises a bomb head shell 1, an induction charging and geomagnetic signal detection revolution distance ignition control module 2, a cover plate 3, a separation ball 4, a flame detonator 5, a split ring 6, a booster shell 7, booster 8, a shear pin 9, a booster tube seat 10, a ball seat 11, a bomb body 12, a gasket 13, a reinforcing cap 14, a sealing ring 15, an upper explosive charge 16, a lower explosive charge 17 and a bomb bottom 18.

The bullet shell 1 is a revolution body, the top end of the outer contour is hemispherical, the lower half part is a cylindrical surface, the middle is connected by an arc surface, and an annular groove is formed in the cylindrical surface. Inside the bullet shell 1 is a stepped blind hole with a downward opening. The upper half part of the outer contour of the projectile body 12 is also an arc surface which is smoothly connected with the arc surface of the projectile head shell 1, so that the outer contour of the front end of the empty explosion projectile is streamline. The lower half of the projectile body 12 is also cylindrical, and the cylindrical surface is provided with two strip-shaped bulges, namely a projectile belt integrally designed on the projectile body. The central axis of the shell body 12 is provided with seven steps of through holes, namely a first step hole, a second step hole, a third step hole, a fourth step hole, a fifth step hole, a sixth step hole and a seventh step hole from top to bottom, wherein the inner diameter of the first step hole is slightly smaller than that of the second step hole, and the first step hole is formed by closing in during assembly, so that the closing in of the upper edge of the shell body 12 is slightly inwards bent and is just clamped into a ring groove on the shell body 1. The inductive charging and geomagnetic signal detecting revolution fixed-distance ignition control module 2 is arranged in an inner hole of the bullet shell 1 and is covered by a cover plate 3, the bullet shell 1 is arranged in a second-order hole, and the outer cylindrical surface of the bullet shell 1 is tightly matched with the inner wall of the second-order hole. The inner diameter of the third-order hole is the smallest, and the third-order hole is a fire transfer hole of the bullet head ignition control module and the middle safety control and detonation module, and a cover plate 3 is arranged above the fire transfer hole, and the cover plate 3 separates the bullet head ignition control module from the middle safety control and detonation module.

The third-order hole and the fourth-order hole of the inner contour of the projectile body 12 are transited by circular arcs to form a hemispherical and short cylindrical inner cavity, which is the accommodating and moving space of the isolation ball 4. The lower end of the sixth-order hole of the projectile body 12 is provided with internal threads. The isolating ball 4 is internally provided with a transverse hole at the left and right, the sizes and the shapes of the two holes are the same, and the two holes are coaxial and the axis passes through the center of the ball for placing the flame detonator 5. The two flame detonators 5 are identical and have a double-axial flame input function, and the output end faces outwards into the transverse hole. The horizontal axis positions of the two transverse holes are provided with first center holes, the diameters of the first center holes are smaller than that of the two transverse holes and are communicated with the two transverse holes, and the first center holes are fire transmission channels between the two flame detonators 5. And a second central hole is arranged above the first central hole along the vertical axis direction, is perpendicular to the first central hole and is communicated with the first central hole. The outer contour of the isolating ball 4 is in an incomplete sphere shape, and besides the left end face and the right end face are formed by riveting after the flame detonator 5 is placed in two transverse holes, a small ball notch is cut off from the lower part of the isolating ball 4 to form a lower end face. Between the left and right end surfaces and the lower end surface, there is a cylindrical surface along the vertical axis direction for fixing the split ring 6, which is not engaged with the left and right end surfaces and the lower end surface.

The ball seat 11 is a revolving body, and a cavity between the upper end surface of the ball seat and the hemispherical space of the elastomer 12 is a preset explosion venting cavity. The outer contour of the ball seat 11 is a two-step stepped shaft, and the ball seat 11 is divided into a first-step shaft and a second-step shaft from top to bottom, wherein the first-step shaft is matched with the fifth-step hole of the elastic body 12, and the second-step shaft is matched with the sixth-step hole of the elastic body 12, so that the limit of the ball seat 11 is realized. The ball seat 11 is provided with two steps of stepped through holes along the central axis, namely an upper stepped hole and a lower stepped hole. The center of the upper end face of the ball seat 11 is dug with a groove to form an upper ball socket which is also the accommodating and moving space of the isolation ball 4 and is communicated with the upper stepped hole. The ball seat 11 is provided with a first radial hole on a second step shaft which is communicated with the lower stepped hole. The booster seat 10 is also a revolving body, the outer contour of the booster seat is a two-step stepped shaft, the booster seat is divided into a third step shaft and a fourth step shaft from top to bottom, the third step shaft is matched with the upper step hole, and the fourth step shaft is matched with the lower step hole, so that the booster seat 10 is limited. And a second radial hole is formed in the fourth-order shaft at a position corresponding to the first radial hole on the second-order shaft of the ball seat 11, and the first radial hole is communicated with the second radial hole. The explosion propagation tube seat 10 is internally provided with an upward blind hole, the second radial hole is directly communicated with the internal blind hole, and the explosion propagation medicine 8 is arranged in the explosion propagation tube shell 7 and reversely buckled in the blind hole. Five explosion venting grooves are formed in the outer circumference of the ball seat 11, the positions of the explosion venting grooves for forming the first radial holes are uniformly distributed along the circumference, the explosion venting grooves penetrate through the upper end face and the lower end face, the positions close to the lower end face are inwards extended to be communicated with inner stepped holes, and the cross section of each explosion venting groove is in an inverted T shape.

The split ring 6 is arranged in the explosion venting cavity of the elastomer 12 and is coaxial with the cylindrical surface on the isolation ball 4, the upper end surface of the split ring is propped against the isolation ball 4, and the lower end surface of the split ring is propped against the upper end surface of the ball seat 11. The isolating ball 4, the flame detonator 5 and the ball seat 11 form a ball rotor explosion-proof and delay-release explosion-proof mechanism. The isolating ball 4 can not rotate when the isolating ball 4 is fixed by the split ring 6, and the isolating ball 4, the split ring 6 and the ball seat 11 form a centrifugal safety mechanism of the explosion-proof and delay-release explosion-proof mechanism of the ball rotor, so that the centrifugal safety mechanism is the first safety for the flame detonator 5 in the isolating ball 4. The shear pin 9 is arranged in the communication channel of the first radial hole and the second radial hole, fixes the explosion propagation tube seat 10 and the explosion propagation tube shell 7 and the explosion propagation medicine 8 in the explosion propagation tube seat, and enables the explosion propagation tube seat 10 and the lower gasket 13 to be separated by a certain distance, at the moment, the upper end face of the explosion propagation tube seat 10 is flush with the explosion propagation tube shell 7, stretches out of the upper stepped hole of the ball seat 11, props against the lower end face of the isolation ball 4, and also fixes the isolation ball 4 to be unable to rotate. The booster shell 7, the shear pin 9, the booster tube seat 10, the ball seat 11, the gasket 13 and the bullet bottom 18 together form a magnetic anti-recovery recoil safety mechanism and booster sequence, which is the second safety for the flame detonator 5 in the isolation ball 4. The isolation ball 4, the flame detonator 5, the split ring 6, the explosion-transmitting tube shell 7, the explosion-transmitting powder 8, the shear pin 9, the explosion-transmitting tube seat 10, the ball seat 11 and the gasket 13 in the elastomer 12 jointly form a middle safety control and detonation module.

The explosive charging module at the tail part of the empty explosion bullet, namely the warhead. The bullet bottom 18 is a revolution body, the upper half part of the outer contour is a four-step shaft, the lower half part is a cone, and the diameter of the bullet bottom is sequentially increased along the axis from top to bottom by a fifth-step shaft, a sixth-step shaft, a seventh-step shaft and an eighth-step shaft. The sixth-order shaft is provided with external threads and is connected with the internal threads of the sixth-order hole of the elastic body 12, the seventh-order shaft is matched with the seventh-order hole of the elastic body 12, the lower end surface of the elastic body 12 and the sealing ring 15 are propped against the shaft shoulder between the seventh-order shaft and the eighth-order shaft of the elastic body 18, and the limit and connection between the elastic body 12 and the elastic body 18 are realized. Inside the bullet bottom 18 is a second-order blind hole with an upward opening, and along the axis from top to bottom is an eighth-order hole and a ninth-order hole, wherein the inner diameter of the eighth-order hole is slightly larger than that of the ninth-order hole. The gasket 13 is made of a permanent magnet and is arranged in the eighth-order hole, the upper end face of the spring bottom 18 and the upper end face of the gasket 13 are flush and abut against the lower end face of the ball seat 11 together, the ball seat 11 is limited, and the ball seat 11 is fixed by means of point riveting. The explosive charge is divided into two parts, the upper explosive charge 16 is pressed in the reinforcing cap 14, and is arranged in a ninth-order hole of the bottom 18 together with the lower explosive charge 17, and the upper explosive charge and the lower explosive charge are sealed and fixed by means of dispensing.

The state of the empty explosion ejection factory is the insurance state, at this moment, the bullet shell 1 is arranged above the bullet 12, the upper edge of the bullet 12 is closed and clamped into the ring groove on the bullet shell 1, the bullet bottom 18 is screwed under the bullet 12 with a certain moment, and the ball seat 11 is propped up. The isolating ball 4 can not be rotated by fixing the isolating ball 4 through the split ring 6, the shearing pin 9 is inserted into a communication channel between a first radial hole of the ball seat 11 and a second radial hole of the booster tube seat 10, the booster tube shell 7 and the booster explosive 8 arranged in the booster tube seat 10 are clamped, the booster tube seat 10 and the booster tube shell 7 extend out of an upper stepped hole of the ball seat 11 to prop against the lower end face of the isolating ball 4, and the isolating ball 4 can not be rotated by fixing. The flame detonator 5 which is arranged in the isolating ball 4 in this state is communicated with the preset explosion venting cavity and is separated from the explosion transfer powder 8, namely, the split ring 6, the shearing pin 9 and the explosion transfer tube seat 10 ensure the flame detonator 5 to be in the explosion-proof position. Meanwhile, although the washer 13 made of the permanent magnet generates magnetic force to attract the booster tube seat 10 made of ferromagnetic materials, the shear pin 9 clamps the booster tube seat 10 to be fixed, the lower end face of the booster tube seat 10 is a certain distance away from explosive charges below, a cavity is formed, the cavity is communicated with a preset booster cavity through the booster groove on the ball seat 11, namely, the shear pin 9 fixes the booster 8 at a space explosion-proof position, the acting pressure during accidental firing can be reduced, and the gun and the bullet are in a safe state.

The reliable transportation, falling, collision and various tactical actions of the empty bomb during the service treatment stage can not lead the bullet shell 1 and the bullet bottom 18 to drop from the bomb body 12, the flame detonator 5 is always in an explosion-proof state, in this case, the blackout-14 booster charge is considered to be free from the possibility of accidental ignition and explosion, and even if the detonator is accidentally ignited and exploded, the booster charge and the explosive charge can not be detonated or ignited, and meanwhile, no dangerous fragments are generated, so that the bullet is safe.

The working process of the fixed-distance air-explosion bomb for the large-caliber machine gun, which is mainly used for intercepting the microminiature unmanned aerial vehicle, is as follows: the space-fixed air explosion bomb is launched in the gun barrel, the recoil load acts on the explosion-propagation tube seat 10, the explosion-propagation tube shell 7, the explosion-propagation medicine 8 and the shearing pin 9, and the shearing pin 9 is sheared, so that the explosion-propagation tube seat 10 and the explosion-propagation tube in the explosion-propagation tube seat move backwards relative to the ball seat 11 until the bottom surface of the explosion-propagation tube seat 10 touches the upper end surface of the gasket 13 and is adsorbed by the gasket, the isolating ball 4 protected by the upper end surface of the explosion-propagation tube seat 10 is released, and the recoil safety of the isolating ball 4 is relieved. Thereafter, the rotational speed of the space-fixed air-bombs increases gradually as they accelerate in the barrel, and the split ring 6 is pressed against the ball seat 11 and cannot be opened due to the recoil load and the friction moment generated thereby.

When the space explosion bomb is positioned at a certain point near the muzzle, the friction moment generated by the recoil overload of the semi-ring of the split ring 6 is insufficient to overcome the centrifugal moment, the split ring can be opened along the middle prefabricated weak part, and is outwards withdrawn to be attached to the inner cavity of the bomb body 12, so that the isolation ball 4 is released. However, due to the existence of the recoil overload, the friction moment generated by the isolating ball 4 and the flame detonator 5 therein pressing the ball seat 11 still can prevent the isolating ball 4 from rotating until the gap from which the idle explosion bullet flies out approaches the end of the post-effect period, the recoil overload and the friction moment generated by the recoil overload disappear or approach the disappearance, and the isolating ball 4 is just turned forward under the action of the centrifugal moment, namely, the two flame detonator axes in the isolating ball 4 coincide or nearly coincide with the bullet axes, wherein one flame detonator input-output end faces upwards towards the central fire hole on the elastomer 12, and the other flame detonator input-output end faces downwards towards the central fuse explosion tube. At the moment, the induction charging and geomagnetic signal detecting revolution fixed-distance ignition control module 2 is arranged at the uppermost part, the flame detonator 5 is arranged in the middle, the booster powder 8 is arranged at the lower part, the explosive charge is arranged at the lowest part, the empty bomb explosion sequence is conducted, and the empty bomb explosion sequence is in a state to be ignited after the safety is relieved.

When the preset ignition condition is met, the induction charging detection geomagnetic signal meter revolution fixed-distance ignition control module 2 generates flame output, the flame detonator 5 is ignited through the fire transmission hole, the flame detonator 5 ignites the other flame detonator 5 which is opposite to the induction charging detection geomagnetic signal meter revolution fixed-distance ignition control module, the explosion-transmitting tube shell 7 is exploded and the explosion-transmitting powder 8 is detonated, the explosion-transmitting powder 8 explodes the bottom of the explosion-transmitting tube base 10 and the reinforcing cap 14, then the explosive charges are detonated, the projectile body 12, the projectile bottom 18 and other structural members are all exploded into fragments to splash outwards, and the empty explosion projectile completes the preset explosion action. The ignition signal of the air-explosion bomb is generated by the induction charging and geomagnetic signal meter revolution fixed-distance ignition control module 2, and the ignition action is completed inside the bullet, so that the reliability of the ignition action of the air-explosion bomb by ballistic foreign matters is not influenced.

In addition to the above-described predetermined normal actions, the fuze functions in the unexpected case as follows:

if the shear pin 9 is accidentally not relieved, the booster seat 10 and booster therein will not give the isolation ball 4 room to rotate, the isolation ball 4 will not be released, and the isolation ball 4 will be in the assembled position regardless of whether the split ring 6 is normally relieved. The spacer balls 4 will also be in the assembled position if the split ring 6 is accidentally unblown. When the isolating ball 4 is in an assembling position and is not rotated, the flame detonator 5 is always in an explosion-proof state, and the explosion-propagating sequence cannot be aligned. The flame output generated by normal ignition of the induction charging detection geomagnetic signal meter revolution fixed-distance ignition control module 2 can pass through the flame transfer channel perpendicular to the axis of the flame detonator 5 on the isolating ball 4, namely the flame detonator 5 with the second center Kong Yinbao at the assembly position, at the moment, the fuze loses the normal initiation function, the fuze enters an insulating state at the explosion-proof position, and after falling to the ground, if the bullet is not disassembled or broken, the induction charging detection geomagnetic signal meter revolution fixed-distance ignition control module 2 can complete the preset electric ignition energy dissipation. The risk of explosive disposal is substantially eliminated if the firearm is disintegrated and broken.

If both safeties are released, the isolating ball 4 rotates but is not rotated, and is in a structure dislocation and functional explosion-proof state, and the explosion-propagation sequence cannot be aligned, then the flame output generated by normal ignition of the induction charging detection geomagnetic signal meter revolution fixed-distance ignition control module 2 can detonate the flame detonator 5 through the gap between the isolating ball 4 and the cavity of the isolating ball, and at the moment, the detonator loses the normal detonation function to enter an explosion-proof state, so that the explosive treatment safety can be ensured.

If the isolating ball 4 is normally rotated and the explosion-spreading sequence is aligned, but the induction charging detection geomagnetic signal meter revolution fixed-distance ignition control module 2 does not ignite or fails to detonate the flame detonator 5 after igniting, the explosion-spreading sequence may collide with the ignition to detonate the bullet or the bullet may be disassembled and broken due to collision during landing. In summary, explosive handling after fuze misfire is safe.

The bullet shell 1 is made of titanium alloy, has high strength and small density, is favorable for rotation stability design and emission strength design, and does not influence the induction charging of the head ignition control module and the detection of geomagnetic signals. The cover plate 3 is made of a nitro film, so that the level sealing of the parts can be ensured, and the head ignition control module is not influenced to safely control the middle part and transmit the ignition to the detonation module. The projectile body 12 is made of brass, and the elastic belt is integrally designed on the outer cylindrical surface of the projectile body 12, so that the structure is simple, and the overall firing strength of the bullet can be effectively improved.

The foregoing has outlined and described the basic principles, features, principal functions, basic construction and advantages of the present invention. The present invention is subject to various changes and modifications without departing from the spirit and scope thereof, and such changes and modifications fall within the scope of the invention as hereinafter claimed.

Claims

1. The utility model provides a heavy-calibre rifle distance empty bomb that mainly used intercepts microminiature unmanned aerial vehicle which characterized in that: the explosive explosion device comprises a head ignition control module, a middle safety control and detonation module, a tail explosive charging module and an elastomer (12), wherein the elastomer (12) is a structural main body of an empty explosion bomb, the front part of the outline of the elastomer is arc-shaped, the rear part of the outline of the elastomer is cylindrical, and the three modules are distributed along the central axis of the elastomer (12) and are designed integrally with the elastomer (12); the head ignition control module comprises a bullet shell (1), an inductive charging and geomagnetic signal detection revolution fixed-distance ignition control module (2) and a cover plate (3), wherein the inductive charging and geomagnetic signal detection revolution fixed-distance ignition control module is arranged in the bullet shell (1); the middle safety control and detonation module comprises a ball rotor explosion-proof and delay-release explosion-proof mechanism consisting of an isolation ball (4), a flame detonator (5) arranged in the isolation ball (4) and a ball seat (11), and a magnetic anti-recovery squat safety mechanism and explosion-proof sequence consisting of an explosion-proof tube shell (7), explosion-transfer medicine (8) arranged in the explosion-transfer tube shell (7), a shearing pin (9), an explosion-transfer tube seat (10), the ball seat (11) and a permanent magnet gasket (13), and a centrifugal safety mechanism taking an opening ring (6) as a main component to form the isolation ball (4), namely the ball rotor; the tail explosive charging module comprises a reinforcing cap (14), a sealing ring (15), an upper explosive charging (16), a lower explosive charging (17) and a warhead (18).

2. The large caliber machine gun distance air bomb mainly used for intercepting a microminiature unmanned aerial vehicle according to claim 1, wherein the fixed-distance air bomb is characterized in that: by adopting the integrated design concept, the projectile body (12) is made of brass, seven-step stepped holes are formed along the central axis of the projectile body (12) for assembly, and the elastic belt is integrally designed on the outer cylindrical surface of the projectile body (12), namely, the elastic belt and the projectile body are structurally integrated, so that the structure is simple, and the integral emission intensity of the projectile body can be effectively improved.

3. The large caliber machine gun distance air bomb mainly used for intercepting a microminiature unmanned aerial vehicle according to claim 1, wherein the fixed-distance air bomb is characterized in that: the top end of the outer contour of the bullet shell (1) is hemispherical, the lower half part is a cylindrical surface, the middle is connected by an arc surface, an annular groove is formed in the cylindrical surface, and a stepped blind hole with a downward opening is formed in the bullet shell (1); the upper edge of the elastic body (12) is clamped into a ring groove on the elastic head shell (1), and the outer cylindrical surface of the elastic head shell (1) is tightly matched with the inner wall of the head of the elastic body (12); the upper half part of the outer contour of the projectile body (12) is an arc surface and is smoothly connected with the arc surface of the projectile head shell (1), so that the outer contour of the front end of the empty bomb is streamline; the induction charging and geomagnetic signal detecting revolution fixed-distance ignition control module (2) is assembled in the bullet shell (1), the head ignition control module is separated from the middle safety control and the detonation module by the cover plate (3), and the head of the tail explosive charging module extends into the tail of the bullet body (12) and is fixedly connected with the tail of the bullet body.

4. The large caliber machine gun distance air bomb mainly used for intercepting a microminiature unmanned aerial vehicle according to claim 1, wherein the fixed-distance air bomb is characterized in that: the head ignition control module, the ball rotor explosion-proof and delay release explosion-proof mechanism, the centrifugal safety mechanism and the magnetic anti-recovery squat safety mechanism and the explosion-transmission sequence jointly realize the function of an explosion fuze of the explosion bomb, and the mechanisms are sequentially distributed from top to bottom along the axis of the bomb body (12); the induction charging and geomagnetic signal detecting revolution fixed-distance ignition control module (2) is positioned above the projectile body (12) to realize an ignition control function; the explosion-proof and delay-relieving explosion-proof mechanism of the ball rotor is mainly composed of an isolation ball (4), a flame detonator (5), an opening ring (6) and a ball seat (11), is arranged in the middle of an elastomer (12), and is mainly composed of the opening ring (6); the explosion-conducting tube shell (7), the explosion-conducting agent (8), the shearing pin (9), the explosion-conducting tube seat (10), the ball seat (11), the gasket (13) made of permanent magnets and the bullet bottom (18) are made of ferromagnetic materials, and the magnetic anti-recovery recoil safety mechanism and explosion-conducting sequence are all arranged below the isolation ball (4); the space for accommodating and moving the isolating ball (4) is surrounded by the inner cavity of the elastomer (12) and the upper ball socket of the ball seat (11).

5. The large caliber machine gun distance air bomb mainly used for intercepting a microminiature unmanned aerial vehicle according to claim 4, wherein the fixed-distance air bomb is characterized in that: the flame detonator (5) is directly communicated with an explosion venting cavity preset between the explosion venting tube and the reinforcing cap in the safety state and is spaced from the explosion venting powder (8) below; five explosion venting grooves are uniformly distributed on the outer circumference of the ball seat (11), the explosion venting grooves avoid shearing pins, penetrate through the upper end face and the lower end face of the ball seat (11) and are communicated with the explosion venting cavities, and the cross sections of the explosion venting grooves are in an inverted T shape; the explosion venting groove and the preset pressure venting cavity help to ensure the explosion-proof safety of the fuze and prevent the potential fire transfer channel from being formed when the detonator is accidentally ignited in an explosion-proof state to accidentally ignite or detonate the main charge.

6. The large caliber machine gun distance air bomb mainly used for intercepting a microminiature unmanned aerial vehicle according to claim 1, wherein the fixed-distance air bomb is characterized in that: the bullet shell (1) is made of titanium alloy, is favorable for rotation stability design and emission intensity design, and does not influence the induction charging of the head ignition control module and the detection of geomagnetic signals; the cover plate (3) is made of non-metallic material, so that the level sealing of the parts can be ensured, and the head ignition control module is not influenced to safely control the middle part and transmit the ignition to the detonation module.

7. The large caliber machine gun distance air bomb mainly used for intercepting a microminiature unmanned aerial vehicle according to claim 6, wherein the fixed-distance air bomb is characterized in that: the cover plate (3) is made of a nitro film.

8. The large caliber machine gun distance air bomb mainly used for intercepting a microminiature unmanned aerial vehicle according to claim 1, wherein the fixed-distance air bomb is characterized in that: the elastomer (12) is H62 brass.