CN116697834A - Safe medium caliber explosion bullet with bullet mechanical trigger fuze - Google Patents

Abstract

The invention discloses a safe medium caliber explosion bullet with a bullet mechanical trigger fuse, which consists of an explosion bullet and the bullet mechanical trigger fuse arranged in the explosion bullet. The full bomb is divided into a head ignition module, a middle safety control and detonation module and a tail explosive charging module. The head ignition module comprises a bullet head shell upper part, a fuze body upper part, paraffin wax and a needling fire cap. The fuze body is a main structural member, comprises a safety control and detonation module and is connected with the head ignition module and the tail explosive charging module. The safety control and detonation module comprises a bullet shell middle part, a fuse body lower part, a separation ball, an opening ring, a ball seat, a first reinforcing cap, a booster shell, booster explosive, a recoil safety ring and a flame detonator. The tail explosive charging module comprises a bullet head shell lower part, a second reinforcing cap, explosive charging, a bullet body and a lead sleeve. The fuze realizes explosion-proof and delay release of explosion-proof by a ball rotor mechanism, and the redundant safety is formed by a split ring centrifugal safety mechanism and a safety ring squat safety mechanism.

Description

Safe medium caliber explosion bullet with bullet mechanical trigger fuze

Technical Field

The invention belongs to the technology of small arms ammunition, and particularly relates to a safe medium caliber explosive cartridge with a warhead mechanical trigger fuze.

Background

A bullet is an ammunition that a firearm uses to attack or defend in combat, causing the target to be directly damaged, and is also the most widely used and most consumed type of ammunition. Modern military bullets are mainly used for killing living targets, and can also be used for destroying targets such as light armored vehicles, low-altitude airplanes, military facilities and the like. The explosive in the bullet is mainly used for attacking low-strength and inflammable targets such as thin-wall oil tanks, airplanes, wooden shelters and the like, has a combustion effect and has a good damage effect on the targets. Historically, explosives have been generally classified into time explosives and trigger explosives.

The German time bomb warhead is introduced in the literature of the automatic infantry weapon and ammunition design handbook (written group, infantry weapon and ammunition design handbook (upper handbook). Beijing: national defense industry Press, 1977), wherein the needle-punched cap is supported by a spring, so that the needle-punched cap keeps a certain distance from a firing pin, and plays a role in insurance at ordinary times. The delay grain is placed in the through hole at the rear part of the firing pin, and the delay time can be changed by adjusting the length of the delay grain, so that the aim of changing the distance of the explosion point is fulfilled. The ignition cap is recoil under the action of recoil force when the ignition needle is launched, the resistance of the spring is overcome, the ignition needle is impacted to ignite, and the delay agent is ignited. The delay agent transmits flame to explosive after a certain time to make the warhead explode, and generates smoke and light to indicate the position of the explosion point. The change of meteorological conditions or the wetting of the delay agent can influence the burning time of the delay agent, so that the distance between the warhead and the explosion point is changed.

The literature (written group, written manual for automatic weapons and ammunition design) describes a 12.7mm caliber (Jiujia-46) triggering combustion explosion warhead, which contains explosive and combustion agent, and when the warhead hits a target, the warhead covers the air in the air chamber to raise the air temperature, and the needle-punched fire cap is ignited to cause explosion and combustion. The modified M-46 is just to change the filling agent into explosive; most parts of the modified M-3 are changed into stamping parts from mechanical processing, and the structure is unchanged. The heads of the explosive bombs are relatively blunt, the air resistance is large, and the speed is relatively fast to drop. When the speed is too low, the needle-punched cap cannot be reliably ignited, and thus cannot be used to cope with a remote target. When the object is missed and landed (e.g., shot in the air), misfire occurs due to low landing speed.

The document "automatic infantry weapon and ammunition design handbook" (written group, automatic infantry weapon and ammunition design handbook (upper handbook). Beijing: national defense industry Press, 1977) also describes a 14.5mm caliber burst warhead. The main components are the penetration pipe, the explosive body and the light pipe. The front part of the bullet shell is provided with a bullet cap. When the target is impacted, the warhead cap deforms, air penetrating through the inner cavity of the pipe is compressed, an adiabatic effect is generated, the detonator is detonated, and then the explosive is detonated, and the target is blasted and ignited. The penetration pipe is mainly used for preventing the front part of the warhead from being damaged when penetrating the target, and ensuring the integrity of the air chamber. Fragments generated after the penetration pipe impacts the target can also play a role in detonating the detonator. Besides indicating the trace, the light-emitting tube can detonate explosive to play a role in self-destruction in the air and prevent the warhead from falling down to form an additional hazard due to the fact that the warhead does not hit the target.

The three fuzes are all non-flameproof fuzes, and excessive rifling, muzzle blasting and ballistic blasting accidents occur in production and use, and the production is stopped and stopped for many years. The equipment is urgently required to be provided with a medium-large caliber bullet with guaranteed safety, and the related problems are mainly the safety problem of the fuze.

The safety type large-caliber explosion bullet mechanical triggering fuze disclosed in Chinese patent 202110701301.7 comprises a shell, a shaping ring, an impact type triggering and self-destroying mechanism, a soft belt, an explosion-proof and delay releasing mechanism, a split ring, a recoil safety mechanism and a detonation tube. The impact triggering and self-destroying mechanism adopts an integrated structure, can realize impact triggering and ignition when the fuze impacts a target, and can also realize a self-destroying function; the explosion-proof and delay releasing mechanism is a ball rotor, so that the detonator is in an explosion-proof state at ordinary times, and a delay releasing function is realized after the fuse is released; the squat safety mechanism and the centrifugal safety mechanism realize redundant safety of the ball rotor; the fuze has the advantages of simple structure, full utilization of fuze space, flame-proof, redundancy safety, delayed release of flame-proof, self-destruction and self-failure functions, and is also suitable for small-caliber artillery grenades.

The mechanical trigger fuse of the bullet of the large-caliber smooth-bore explosion gun disclosed in China patent 201811463502.2 comprises a head trigger mechanism, a body, a sliding column, a recoil safety mechanism and a detonating tube. The head triggering mechanism can be used for a large-caliber bullet triggering fuse and a small-caliber bullet triggering fuse, and can effectively solve the contradiction between drop safety and triggering sensitivity, floor-cleaning explosion, large-angle ignition and reliability; the fuze is in clearance fit with the body through the sliding column, so that damping is formed when the sliding column moves outwards, and explosion suppression safety and delayed explosion suppression are realized; the radial constraint provided by the cartridge case and the inner wall of the barrel realizes the contact chamber safety; the 'contact chamber' insurance formed by the recoil insurance and the shell restraint meets the redundant insurance requirement; the fuze is used for safe detonation of an explosion cartridge for a breech gun.

Disclosure of Invention

The invention provides a safe medium-caliber explosion bullet with a bullet mechanical trigger fuze, which adopts a ball rotor mechanism to realize explosion suppression and delay release explosion suppression, adopts a split ring centrifugal safety mechanism and a safety ring squat safety mechanism to form redundant safety, and can ensure the safety under the service treatment and emission states. When the explosion-proof safety device is used for normal emission, centrifugal force generated by high rotation speed enables the opening ring to deform and open along the middle prefabricated weak point, recoil force generated by overload emission enables the recoil safety ring to deform and sink, safety of the isolation ball is relieved, the isolation ball and a flame detonator in the isolation ball form a ball rotor to be turned right under the action of centrifugal moment, even if the axis of the flame detonator coincides with the axis of the fuse, the upper alignment pin is used for punching the fire cap, the lower alignment pin is used for transmitting the explosion tube, and the fuse is in a state to be fired. After the bullet hits the target, the head of the bullet shell collides with the target to deform, paraffin in the bullet shell is extruded, the paraffin is extruded to extrude the needling fire cap to fire the needling fire cap, the weak detonation output of the paraffin acts on the outer side end of the flame detonator in the isolating ball to fire the flame detonator, then the flame detonator on the other side is detonated, then the booster tube is detonated, and then the explosive charge is detonated, so that the preset detonation is completed.

The technical scheme for realizing the invention is as follows: the safe medium caliber explosive bullet with bullet mechanical trigger fuze consists of explosive bullet and bullet mechanical trigger fuze inside the explosive bullet; the full bullet is sequentially divided into a head ignition module, a middle safety control and detonation module and a tail explosive charging module from front to back, wherein the head ignition module comprises a bullet head shell upper part, a fuze body upper part, paraffin and a needling cap; the middle safety control and detonation module comprises a bullet shell middle part, a fuse body lower part, a ball rotor explosion-proof and delay release explosion-proof mechanism consisting of an isolation ball and two flame detonators arranged in an inner cavity of the isolation ball, an explosion-proof ring recoil safety mechanism and explosion-proof sequence consisting of an explosion-proof tube shell, a first reinforcing cap and explosion-proof powder arranged in the explosion-proof tube shell, a recoil safety ring and a ball seat, and an opening ring centrifugal safety mechanism consisting of an opening ring, the ball seat and the fuse body; the tail explosive charging module comprises a lower part of a bullet shell, a bullet body, explosive charging in the bullet body, a lead sleeve between the bullet body and the bullet shell and a second reinforcing cap at the outer end of the explosive charging; the bullet body is the structural main body of the explosion bullet, the fuze body is the structural main body of the mechanical triggering fuze of the bullet head of the explosion bullet, and all the constituent modules are mainly distributed along the axis and structurally integrated by the bullet head shell; the middle safety control and detonation module with the explosion-proof, redundant safety and delay explosion-proof releasing functions is arranged in the inner hole at the tail part of the fuze 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 is a warhead of the bullet of the explosion gun and is used for destroying the target.

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

(1) The fuze has the functions of explosion suppression, redundancy insurance and delayed release of explosion suppression, the explosion transfer agent is an allowable explosion transfer agent, the related requirements of GJB373B-2019 'fuze safety design criterion' are met, and the service treatment and use safety can be ensured.

(2) The whole warhead adopts the design of leading the war integration, and the warhead shell cladding is outside, and the structure is brief, and warhead intensity is high, and the security is good, and the reliability easily guarantees.

(3) The head paraffin extrusion ignition mechanism can reliably ignite various targets in various orientations (namely various falling angles or landing angles) and high and low landing speeds. And after accidental misfire, the explosive is difficult to re-fire in a trusted explosive treatment environment, so that the explosive serving as the non-explosive is good in treatment safety.

(4) The design of the cross explosion-transmitting channel in the isolation ball and the selection of the bidirectional input detonator can realize the fire-insulating effect under the condition that the ball rotor rotates forward to move accidentally and is not started, and the explosive treatment safety of the non-explosive powder is also improved.

Drawings

Fig. 1 is a schematic view of a safe medium caliber explosive cartridge with a warhead mechanical triggering fuse according to the present invention in an axial section.

Wherein 1 is a bullet shell, 2 is a needling fire cap, 3 is a fuze body, 4 is a separation ball, 5 is a recoil safety ring, 6 is a first reinforcing cap, 7 is a ball seat, 8 is a booster shell, 9 is a lead sleeve, 10 is an explosive charge, 11 is an elastomer, 12 is a second reinforcing cap, 13 is a booster, 14 is a split ring, 15 is a flame detonator, and 16 is paraffin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a safe medium caliber explosive cartridge with a warhead mechanical triggering fuse of the present invention is composed of an explosive cartridge and a warhead mechanical triggering fuse arranged in the explosive cartridge; the full bullet is sequentially divided into a head ignition module, a middle safety control and detonation module and a tail explosive charging module from front to back, wherein the head ignition module comprises the upper part of a bullet head shell 1, the upper part of a fuze body 3, paraffin 16 and a needling cap 2; the middle safety control and detonation module comprises a bullet shell 1 middle part, a fuse body 3 lower part, a ball rotor explosion-proof and delay release explosion-proof mechanism consisting of an isolation ball 4 and two flame detonators 15 arranged in an inner cavity of the isolation ball 4, an insurance ring squat insurance mechanism consisting of an explosion-proof tube shell 8, a first reinforcing cap 6 and explosion-proof agent 13 arranged in the explosion-proof tube shell 8, a squat insurance ring 5 and a ball seat 7, and an explosion-proof sequence consisting of an opening ring 14, a ball seat 7 and a fuse body 3; the tail explosive charging module comprises the lower part of the bullet shell 1, a projectile body 11, an explosive charge 10 in the projectile body 11, a lead sleeve 9 between the projectile body 11 and the bullet shell 1 and a second reinforcing cap 12 at the outer end of the explosive charge 10; the projectile body 11 is the structural main body of the explosion bullet, the fuze body 3 is the structural main body of the mechanical triggering fuze of the bullet of the explosion bullet, and all the component modules are mainly distributed along the axis and structurally integrated by the bullet shell 1.

The bullet shell 1 is a revolution body, and the outer contour is streamline. The lead sleeve 9 between the nose casing 1 and the projectile 11 is adapted to impart rotation to the projectile by plastic deformation of the nose casing into engagement with the rifling in the barrel. The inner contour of the fuse body 3 is a six-step through hole, and a first step hole, a second step hole, a third step hole, a fourth step hole, a fifth step hole and a sixth step hole are sequentially formed from top to bottom along the central axis, the needling cap 2 is arranged in the first step hole, and the hole is fixed through spot riveting; the inner diameter of the second-order hole is the smallest, and the second-order hole is a fire transmission channel of the head ignition module and the middle safety control and initiation module. The axial fire transmission channel is used for checking the assembly correctness of the isolating ball 4 before the needling type fire cap 2 is installed in the fuse assembly process. The paraffin 16 in the bullet shell 1 is an incompressible medium, and can be melted into a liquid state under the action of pneumatic heat in the flying process of the bullet, so that the target impact pressure can be effectively transmitted to the input end of the needling fire cap 2, and various targets can be reliably ignited under the large-angle and floor wiping postures at high, medium and low impact speeds.

The needling cap 2 is designed to be in weak detonation output, the outer end output and the inner end axial flame needling input are designed to be carried out on the flame detonator 15, but the inner end radial direction and the outer end axial direction can reliably fire when the weak detonation output of the needling cap 2 is received in a fuze structure, and the output power of the flame detonator 15 is formed by firing and detonating the other flame detonator 15 from outside to inside; the structural design ensures that the normal ignition in the arming state and the fire-insulating ignition in the unexpected non-arming state are realized, so that the safety of explosive treatment in the unexpected blind ignition state of the fuze is ensured.

The second-order hole and the third-order hole of the inner contour of the fuze body 3 are transited by an arc to form a nearly hemispherical cavity, which is a space for accommodating and moving the isolating ball 4, namely the ball rotor; the isolating ball 4 is internally symmetrically provided with a transverse hole, namely, two holes have the same size and shape, are coaxial and have axes passing through the center of the ball and are used for respectively placing a flame detonator 15; the two flame detonators 15 have the same specification, the input ends of the two flame detonators are inwards arranged in the transverse holes and are fixed by point riveting; a first central hole is coaxially arranged with the axes of the two transverse holes, the inner diameter of the first central hole is smaller than that of the two transverse holes and communicated with the transverse holes, and the first central hole is a mutual fire transmission channel of the two flame detonators 15; a second central hole is coaxially or nearly coaxially arranged above the first central hole along the axis direction of the fuze, is perpendicular to the first central hole and is connected with the first central hole and the two transverse holes; the outer contour of the isolating ball 4 is not a complete sphere, and besides the left end face and the right end face formed by riveting after the flame detonator 15 is placed in the two transverse holes, a small ball notch is cut off at the lower part of the isolating ball 4 to form a lower end face for matching with the squat safety ring 5. The fuze body 3 is connected with the ball seat 7 in a closing-in mode, so that the axial size is saved.

The ball seat 7 is a revolving body, and a ball rotor, namely a movement cavity for isolating the ball 4, is arranged between the upper end surface of the ball seat and the quasi-hemispherical space in the inner cavity of the fuze body 3; the outer contour of the ball seat 7 is a five-step shaft, and the ball seat 7 is a first-step shaft, a second-step shaft, a third-step shaft, a fourth-step shaft and a fifth-step shaft from top to bottom, wherein the first-step shaft is matched with a fifth-step hole of the fuse body 3, the second-step shaft is matched with a sixth-step hole of the fuse body 3, and the bottom end of the fuse body 3 is inwards riveted to a step surface between the second-step shaft and the third-step shaft, so that the axial limit of the ball seat 7 is realized together; the bottom of the ball seat 7 is provided with a first blind hole upwards, a groove is dug at the center of the top end of the ball seat 7 to form an upper ball socket, the upper ball socket is a part of a ball rotor, namely, a space for accommodating and moving the isolation ball 4, and the upper ball socket is communicated with the first blind hole; an internal thread is arranged in the first blind hole; the upper end face of the recoil safety ring 5 abuts against the bottom of the first blind hole, the lower end face abuts against the top end face of the explosion propagation tube shell 8, and meanwhile, the isolating ball 4, namely the lower end face (the ball notch face) of the ball rotor, is abutted against to limit rotation of the isolating ball, so that recoil safety is realized. The explosion propagation tube shell 8 is also a revolution body, the top surface of the explosion propagation tube shell is downwards provided with a second blind hole, the first reinforcing cap 6 is pressed on the explosion propagation medicine 13, and the explosion propagation tube shell and the first reinforcing cap are arranged in the second blind hole together; the detonating tube shell 8 is connected with the ball seat 7 through internal threads in the first blind hole.

The opening ring 14 is arranged in the annular cavity between the ball seat 7 and the fuze body 3 and is coaxial with the cylindrical surface on the isolation ball 4, the upper end surface of the opening ring abuts against the isolation ball 4, and the lower end surface of the opening ring abuts against the upper end surface of the ball seat 7; the fuse body 3, the isolation ball 4, the flame detonator 15 and the ball seat 7 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 14 at ordinary times, and the isolating ball 4, the split ring 14 and the ball seat 7 form a split ring centrifugal safety mechanism of the ball rotor explosion-proof and delay release explosion-proof mechanism, so that the split ring centrifugal safety mechanism is the first safety; the isolating ball 4, the recoil safety ring 5, the explosion-propagation shell 8 and the ball seat 7 form a safety ring recoil safety mechanism which is a second safety; the fuse body 3, the isolation ball 4, the recoil safety ring 5, the first reinforcing cap 6, the ball seat 7, the explosion-propagation tube shell 8, the explosion-propagation powder 13, the split ring 14 and the flame detonator 15 form a safety control and detonation module together.

The tail part of the ammunition is an explosive charging module, namely a warhead; the projectile body 11 is a revolving body, and the bottom end of the projectile body 11 is fixedly arranged in the projectile head shell 1 through receiving and riveting of the projectile head shell 1; the lead sleeve 9 is arranged between the bullet 11 and the bullet shell 1 and is mainly used for being embedded with the rifling of the gun chamber to endow the bullet with rotation, and has the functions of sealing and moisture resistance; the inner contour of the projectile body 11 is a third-order blind hole, an opening is upward, a seventh-order hole, an eighth-order hole and a ninth-order hole are formed from top to bottom along the axis, the inner diameter of the seventh-order hole is slightly larger than that of the eighth-order hole, and the seventh-order hole is matched with a fifth-order shaft of the ball seat 7; a second reinforcing cap 12 is pressed over the charge 10, both disposed in common within the eighth and ninth order apertures.

The wall thickness of the head part of the bullet shell 1 is thinned from the inside so as to improve the triggering sensitivity of the fuze impact. The whole warhead (including the fuze) is covered by the warhead shell 1, so that the warhead has firm structure, good service treatment safety and high reliability; the bullet shell 1 and the fuze body 3 form a composite partition plate structure, which is beneficial to realizing the explosion-proof safety of the fuze.

The explosive cartridge is in a delivery state, namely a safety state, and the three modules are wrapped in the cartridge head shell 1 and comprise a head ignition module, a middle safety control and detonation module and a tail explosive charging module; the split ring 14 and the squat safety ring 5 fix the isolating ball 4 against rotation; in this state, the flame detonator 15 installed in the isolation ball 4 is dislocated with the booster 13, namely the split ring 14, the recoil safety ring 5 and the booster shell 8 ensure that the flame detonator 15 is in the explosion-proof position and the ammunition is in a safe state.

The reliable transportation, falling and collision impact environment and various tactical actions of the explosion gun bullet in the service processing stage can not lead the split ring 14 and the recoil safety ring 5 to release the isolation ball 4, and the flame detonator 15 in the isolation ball 4 is always in an explosion-proof state. In this case, it is considered that the blackout-14 booster charge is not likely to be accidentally exploded, and the booster charge 13 and the explosive charge 10 are not detonated or ignited even if the flame detonator 15 is accidentally ignited and exploded, and also no dangerous fragments are generated, so that the bullet is safe.

The working process of the safe medium caliber explosive cartridge with the bullet mechanical triggering fuze is as follows:

after the firing of the explosive cartridge, the recoil overload causes the recoil safety ring 5 to sink and plastically deform near the maximum bore pressure point in the bore, releasing the isolation ball 4. The split ring 14 presses against the upper end face of the ball seat 7 and cannot be opened due to the presence of a recoil load in the bore, and the spacer ball 4 also presses against the upper ball seat of the ball seat 7 and cannot rotate. When the warhead flies to the vicinity of the muzzle, the recoil load is reduced sharply, the friction force generated by the recoil force is insufficient to resist the centrifugal force or the friction moment is insufficient to resist the centrifugal moment, and the split ring 14 is subjected to plastic deformation at the middle weak part thereof under the action of the centrifugal force to open two halves, namely the split ring centrifugal safety mechanism releases the safety of the isolating ball 4, namely the ball rotor, is released, and at the moment, both the safety is released. The isolating ball 4 for releasing the two safeties is gradually turned right against the centrifugal, squatting or crawling friction moment under the action of the centrifugal moment, namely, the explosion-proof state of the flame detonator 15 is released, the flame detonator 15 is aligned to the upper explosion-transferring channel and the lower explosion-transferring channel, at the moment, the upper part of the isolating ball is provided with the needle-punching fire cap 2, the lower part of the isolating ball is provided with the explosion-transferring medicine 13, the lowest part is provided with the explosive charge 10, and the explosion sequence of the explosion gun and bullet is conducted and is in the state of waiting after the explosion-proof release.

After the explosion gun bombs hit the target, the paraffin 16 transmits the target hitting force to the input end of the needling type fire cap 2, the needling type fire cap 2 fires, the second-stage Kong Yinbao flame detonator 15 explodes, the first reinforcing cap 6 explodes and detonates the booster charge 13, the booster charge 13 explodes through the bottom of the booster shell 8 and the second reinforcing cap 12, and then the explosive charge 10 detonates, and the explosion gun bombs complete the preset explosion effect.

If the squat safety ring 5 is accidentally not relieved, the squat safety ring 5 will not give the isolation ball 4 room to rotate and the isolation ball 4 will not be released. Whether the split ring 14 is normally released or not, the isolation ball 4 will be in the assembled position (explosion-proof state) and the explosion-propagation sequence cannot be aligned; after the explosion gun bombs hit the target, the needling fire cap 2 can pass through the flame transfer channel perpendicular to the axis of the flame detonator on the isolation ball 4, namely the flame detonator 15 with the second center Kong Yinbao at the assembly position, at the moment, the fuze loses normal detonating function, and the fuze enters an insulating state at the explosion-proof position, so that the explosive treatment safety of the non-explosive bombs formed by the fuze misfire can be ensured.

If the split ring 14 is accidentally unblown, the isolating ball 4 will also be in the assembled position (flameproof condition), with subsequent actions and results as above.

In the service processing stage and the launching process, if the acupuncture fire cap 2 fires accidentally, the flame detonator 15 in the assembly position of the second center Kong Yinbao, which is a fire transmission channel perpendicular to the axis of the flame detonator, on the isolation ball 4 can be used, and at the moment, the normal detonating function of the detonator is lost, the detonator is safe in explosion isolation and enters an insulating state, so that the explosive processing safety of the non-explosive can be ensured.

In the service processing stage and the launching process, if the flame detonator 15 fires accidentally, the isolation ball 4 cannot be relieved under the combined action of the recoil safety ring 5 and the opening ring 14, the isolation ball 4 is in a structure dislocation and functional explosion-proof state, the explosion-transmission sequence cannot be aligned, the flame detonator 15 only explodes in the inner cavity of the isolation ball 4, and the detonation is blocked by the isolation ball 4 and cannot be transmitted downwards, so that the explosion-transmission powder 13 and the explosive charge 10 below the flame detonator cannot be detonated, and the explosion-proof safety of the fuze and the explosive processing safety are ensured.

If the isolating ball 4 is accidentally not turned, the isolating ball is in a structure dislocation and functional explosion-proof state, and the explosion-propagation sequence cannot be aligned; after the explosive cartridge hits the target, the acupuncture fire cap 2 still fires normally, but does not necessarily detonate the flame primer 15 located in the non-rotating isolation ball 4. If the explosion-proof fuse can be detonated, the fuse is explosion-proof and enters an insulating state, so that the safety of explosive treatment of the non-detonated bomb formed by the blind fire of the fuse is ensured. If the explosion is not enough, the flame detonator 15 in the isolating ball 4 loses the needle-punched cap 2 serving as a donor and does not ignite again, so that the detonator enters a self-failure state at the moment, and the safety of explosive treatment of the non-detonated bomb formed by the blind ignition of the detonator can be ensured.

If the firing cap 2 accidentally fails to fire when the explosive cartridge hits the target, the flame detonator 15 thereunder will not detonate. Since the needling cap 2 is not triggered by a firing pin, but triggered by high-speed impact with a target through the transmission effect of the paraffin 16, and the impact speed of hundreds of meters per second is not generated after the impact process of the target is hit, the needling cap 2 is not fired any more, and the safety of explosive treatment of the nonexplosive can be ensured.

Claims (6)

1. A safe medium caliber explosive cartridge with warhead mechanical triggering fuze, characterized in that: the device consists of an explosion gun bullet and a bullet mechanical trigger fuze arranged in the explosion gun bullet; the full bullet is sequentially divided into a head ignition module, a middle safety control and detonation module and a tail explosive charging module from front to back, wherein the head ignition module comprises the upper part of a bullet head shell (1), the upper part of a fuze body (3), paraffin (16) and a needling cap (2); the middle safety control and detonation module comprises a bullet shell (1) middle part, a fuse body (3) lower part, a ball rotor explosion-proof and delay release explosion-proof mechanism consisting of an isolation ball (4) and two flame detonators (15) arranged in an inner cavity of the isolation ball (4), an explosion-proof medicine-transferring sequence consisting of an explosion-transferring tube shell (8), a first reinforcing cap (6) and an explosion-transferring medicine (13) arranged in the explosion-transferring tube shell (8), a squatting safety ring (5) and a ball seat (7), and an opening ring centrifugal safety mechanism consisting of an opening ring (14), the ball seat (7) and the fuse body (3); the tail explosive charging module comprises the lower part of the bullet shell (1), a bullet body (11), an explosive charge (10) in the bullet body (11), a lead sleeve (9) between the bullet body (11) and the bullet shell (1) and a second reinforcing cap (12) at the outer end of the explosive charge (10); the bullet body (11) is the structural main body of the explosion bullet, the fuze body (3) is the structural main body of the explosion bullet warhead mechanical triggering fuze, and all the constituent modules are mainly distributed along the axis and structurally integrated into a whole by the warhead shell (1).

2. A safe medium caliber explosive cartridge with a warhead mechanical triggering fuse as recited in claim 1, wherein: the paraffin (16) is arranged between the bullet shell (1) and the fuze body (3) and is positioned at the top end of the head of the bullet shell (1), the needling cap (2) is riveted in the stepped hole at the upper end of the fuze body (3), and then the axial fire transmission channel is followed; the axial fire transfer channel is communicated with the inner cavity of the fuze, namely a safety control and detonation module positioned in the middle of the fuze; during the fuse assembly process, before the needling cap (2) is installed, the axial fire transmission channel is used for checking the assembly correctness of the isolation ball (4); the paraffin (16) in the bullet shell (1) is an incompressible medium and can be melted into a liquid state under the action of pneumatic heat, so that the target impact pressure can be transmitted to the needling fire cap (2), and the reliable ignition under the large-angle and ground wiping postures is ensured.

3. A safe medium caliber explosive cartridge with a warhead mechanical triggering fuse as recited in claim 1, wherein: the fuze body (3) is connected with the ball seat (7) in a closing-in mode, so that the axial size is saved.

4. A safe medium caliber explosive cartridge with a warhead mechanical triggering fuse as recited in claim 1, wherein: the fuze is positioned on the warhead, the whole warhead is covered by the warhead shell (1), the warhead is firm in structure, the service treatment safety is good, and the reliability is high; the bullet shell (1) and the fuze body (3) form a composite partition plate structure, which is beneficial to realizing explosion-proof safety.

5. A safe medium caliber explosive cartridge with warhead mechanical triggering fuze as recited in claim 2, wherein: the acupuncture fire cap (2) is designed to be in weak detonation output, the outer end output and the inner end axial flame acupuncture input are designed to be carried out on the flame detonator (15), but the weak detonation output of the acupuncture fire cap (2) can be reliably ignited when the inner end radial direction and the outer end axial direction are used for receiving the weak detonation output of the acupuncture fire cap (2), and the output power of the flame detonator (15) is formed by igniting and detonating the other flame detonator (15) from outside to inside; the structural design ensures that the normal ignition in the arming state and the fire-insulating ignition in the unexpected non-arming state are realized, so that the safety of explosive treatment in the unexpected blind ignition state of the fuze is ensured.

6. A safe medium caliber explosive cartridge with a warhead mechanical triggering fuse as recited in claim 1, wherein: the wall thickness of the head part of the bullet shell (1) is thinned so as to improve the triggering sensitivity of the fuze.