CN116678267A

CN116678267A - High-safety electromechanical trigger fuze for bottom of individual rocket projectile

Info

Publication number: CN116678267A
Application number: CN202310768430.7A
Authority: CN
Inventors: 王雨时; 徐浩茗; 闻泉
Original assignee: Nanjing University of Science and Technology
Current assignee: Nanjing University of Science and Technology
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-09-01

Abstract

The invention discloses a high-safety electromechanical trigger fuse at the bottom of an individual rocket projectile, which comprises a body, a shell, an electric detonator, a detonating tube, a vertical rotor explosion-proof mechanism, a recoil safety mechanism, a gunpowder delayed release explosion-proof and safety mechanism, an inertial needling ignition mechanism, a linear generator module, a gunpowder self-destruction and fire-proof mechanism, a base, an inertial trigger switch, a collision trigger switch and an electronic control module. The dual-degree-of-freedom recoil safety mechanism and the gunpowder delayed release explosion-proof and safety mechanism ignited by the bottom rocket engine partition board igniter are utilized to realize redundant safety design under the weak emission environment and delay release explosion-proof. The main firing is realized by utilizing the impact trigger to detonate the electric detonator, the standby firing is realized by utilizing the inertial switch to trigger to close the electric detonator and the inertial firing pin to trigger to detonate the needle detonator, the self-destruction and fire-insulation functions are realized, and the safety of the treatment of the non-detonated explosive formed by the blind fire of the detonator can be ensured; simple structure and low cost.

Description

High-safety electromechanical trigger fuze for bottom of individual rocket projectile

Technical Field

The invention belongs to an individual rocket detonator, and particularly relates to a high-safety individual rocket bomb bottom electromechanical trigger detonator.

Background

The single rocket fuze electric-2 (Russian-B-7) has only one recoil insurance, lacks the second insurance, and does not meet the requirement of redundant insurance. The piezoelectric crystal adopted by the electric-2 fuze has the problems of aging after long storage and performance degradation, and the reliability is difficult to meet. The integrated touch electric fuze described in chinese patent 201310172651.4 is only a part of the fuze, i.e. the ignition mechanism is triggered. Spanish patent ES07290832T, in which the fuse body comprises a piezoelectric generator, a piston, a cover, a plastically deformable device, etc., which is placed on a support together with the body and forms an anvil, the piston exerting a mechanical constraint in the generator and receiving the impact force transmitted by the cover; the piston comprises plastic deformation means interposed between the cover and the body, the means being deformed by the displacement of the cover during the impact with the target, so as to cause the displacement of the piston, the energy consumed by the deformation of the medium being able to ensure as much as possible the crushing of the piezoelectric generator during the impact with the target; the piezoelectric fuze also does not meet the fuze redundancy safety requirement, has no self-destruction, fire-insulation and self-disabling characteristics, and is difficult to ensure the explosive treatment safety after fire-extinction. The second arming environment of the non-rotating projectile fuze is always the key of the design of the non-rotating projectile fuze. 82 quick-firing spring-bottom fuze directly opens the hole to lead gas pressure to enter the inner cavity of the spring-bottom fuze, so that potential safety hazards exist, and if the seal fails, the spring-bottom fuze can possibly cause the explosion or muzzle explosion. Similar problems occur with some small caliber rockets.

Disclosure of Invention

In order to solve the problems, the partition igniter is applied to the interlayer of the rocket engine and the warhead, a rocket engine combustion signal is transmitted to the warhead chamber through the partition igniter under the condition that the partition is still sealed by the partition igniter, and a relay pipe on a fuze positioned in the center of the bottom of the warhead is ignited in a flame mode to serve as a second safety releasing environment of the fuze. The partition igniter is a mature technology of initiating explosive device professionals, has more common application in the aerospace field, is used in the technical field of conventional weapons, and aims to solve the problem of miniaturization at first.

The invention aims to provide a high-safety electromechanical trigger fuse at the bottom of an individual rocket projectile, which realizes redundant safety design under weak emission environment by utilizing a dual-degree-of-freedom recoil safety mechanism and a gunpowder delay explosion-proof and safety mechanism ignited by a bottom rocket engine partition board igniter under the condition that the external dimensions of the fuse are the same as those of an electric-2 (Russian-7) fuse, and delays explosion-proof release. The main firing is realized by utilizing the impact trigger to detonate the electric detonator, the standby firing is realized by utilizing the inertial switch to trigger to close the electric detonator and the inertial firing pin to trigger to detonate the needle detonator, the self-destruction and fire-insulation functions are realized, and the safety of the treatment of the non-detonated explosive formed by the blind fire of the detonator can be ensured.

The technical solution for realizing the purpose of the invention is as follows: the high-safety electromechanical triggering fuse for the bottom of the individual rocket projectile comprises a body, a shell, an electric detonator, a detonating tube, a vertical rotor explosion-proof mechanism, a double-degree-of-freedom recoil safety mechanism, a gunpowder delayed release explosion-proof and safety mechanism, an inertial needling ignition mechanism, a linear generator module, a gunpowder self-destruction and fire-proof mechanism, a second positioning pin, a base, an inertial trigger switch, a bottom cap, an electronic control module and an impact trigger switch; the body is approximately in a revolving body shape, and a first stepped hole is formed downwards from the top surface of the body along the center of the body, and sequentially comprises a first stepped hole, a second stepped hole, a third stepped hole and a fourth stepped hole; the outer side wall of the body is provided with a second stepped hole communicated with a third stepped hole, and a fifth stepped hole, a sixth stepped hole, a seventh stepped hole and an eighth stepped hole are sequentially formed from left to right; a third stepped hole communicated with a seventh-order hole is eccentrically arranged at the bottom of the body along the axial direction; the bottom of the body is eccentrically provided with a fourth stepped hole communicated with an eighth stepped hole along the axial direction, the first stepped hole, the third stepped hole and the fourth stepped hole are coplanar, and the third stepped hole is positioned between the fourth stepped hole and the first stepped hole; a fifth stepped hole is eccentrically arranged at the bottom of the body along the axial direction; the bottom of the body is provided with two first blind holes eccentrically along the axial direction, and the first blind holes do not interfere with the third stepped holes, the fourth stepped holes and the fifth stepped holes; the side surface of the body is provided with a first through hole which is communicated with a sixth-order hole along the radial direction; the body is arranged in the shell; the detonating tube is arranged in the first-order hole, the detonating tube is arranged above the body and is attached to the detonating tube below the body, and the detonating tube are coaxial with the body, namely the fuze. The vertical rotor explosion-proof mechanism is arranged in the second stepped hole, the inertia acupuncture ignition mechanism is arranged in the third stepped hole, and the linear generator module is arranged in the fifth stepped hole; the base is arranged in the bottom cap and is fixed below the body through the bottom cap; two second locating pins are respectively pressed into the first blind holes along one axial end, and the other ends of the two second locating pins extend into the preset blind holes of the base; the dual-degree-of-freedom squat safety mechanism is arranged in a preset axial stepped hole in an end cover of the vertical rotor explosion-proof mechanism; the gunpowder delayed release explosion-proof and safety mechanism is arranged in the first through hole; the inertial trigger switch is arranged in an axial preset blind hole at the other side of the end cover; the gunpowder self-destruction and fire insulation mechanism is arranged in a blind hole at the bottom of the center of the base and a fourth stepped hole, and a fire transmission channel is pre-arranged between the blind hole and the fourth stepped hole; the electronic control module is arranged between the end cover and the body; the needle detonator of the inertial needle ignition mechanism is used for the flame detonator of the sympathetic explosion vertical rotor explosion-proof mechanism; the flame detonator of the vertical rotor explosion-proof mechanism is used for detonating the explosion-proof pipe and is in a dislocation explosion-proof state at ordinary times, and the axis of the flame detonator is staggered with the axis of the explosion-proof pipe to form an included angle of 60-120 degrees; aligning the detonating tube in front of the fuse after the fuse is released and the electric detonator behind the detonator; the dual-degree-of-freedom squat safety mechanism realizes squat safety of the vertical rotor explosion-proof mechanism; the gunpowder delay release explosion-proof and safety mechanism realizes the safety and delay release explosion-proof of the vertical rotor explosion-proof mechanism; the linear generator module is driven by explosion of the first power pipe so as to generate electric energy to supply power to the fuze electronic control module; the gunpowder self-destruction and fire-insulation mechanism realizes the self-destruction and fire-insulation functions of the ignition fault fuze; the detonating tube and the booster tube are used for amplifying the output energy of the flame detonator; the impact trigger switch is in the prior art and is positioned on the warhead for realizing the impact trigger function, including the functions of firing at a large angle and scrubbing and frying; the inertial needling ignition mechanism and the inertial trigger switch realize the standby trigger function of the rocket warhead fuze impact trigger switch; the electronic control module is used for storing energy and controlling the electric detonator to ignite.

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

(1) Meets the requirement of redundant insurance, has the functions of floor cleaning and explosion, large contact angle, self-destruction, self-disabling and fire insulation, and can ensure the safety of explosive treatment of the non-explosive bomb.

(2) Compact structure, not increased volume, complete functions, low cost, high safety and reliable function.

Drawings

Fig. 1 is a schematic structural view of an electromechanical trigger fuse of a high-safety individual rocket projectile bottom along an axial section.

FIG. 2 is a cross-sectional view of an electromechanical trigger fuse of the bottom of a high-safety individual rocket projectile along an axial direction B-B; wherein the B-B section is perpendicular to the section of fig. 1.

FIG. 3 is a cross-sectional view of a high-safety electromechanical trigger fuse of the sole of an individual rocket projectile in a radial C-C section; wherein the C-C section passes through the fuze horizontal rotor axis and is perpendicular to the fuze axis.

FIG. 4 is a cross-sectional view of a high-safety electromechanical trigger fuse of the sole of an individual rocket projectile in a radial direction D-D; wherein the D-D profile passes through and is perpendicular to the detonator axis.

FIG. 5 is a cross-sectional view of an electromechanical trigger fuse of the bottom of a high-safety individual rocket projectile along the axial direction F-F; wherein the F-F profile is parallel to the fuse axis.

FIG. 6 is a cross-sectional view of an electromechanical trigger fuse of the bottom of a high-safety individual rocket projectile along the axial direction G-G; wherein the G-G profile is parallel to the fuse axis.

FIG. 7 is a cross-sectional view of an electromechanical trigger fuse of the bottom of a high-safety individual rocket projectile in an axial H-H section; wherein the H-H profile is parallel to the fuse axis.

FIG. 8 is a cross-sectional view of a high-safety electromechanical triggering fuse of the sole of an individual rocket projectile in a radial J-J section; wherein the J-J section is perpendicular to the fuze axis.

FIG. 9 is a cross-sectional view of a high-safety electromechanical triggering fuse of the sole of an individual rocket projectile in a radial K-K section; wherein the K-K section is perpendicular to the fuse axis.

FIG. 10 is a cross-sectional view of a high-safety electromechanical triggering fuse of the sole of an individual rocket projectile in a radial L-L section; wherein the L-L profile is perpendicular to the fuse axis.

FIG. 11 is a cross-sectional view of an electromechanical trigger fuse of the bottom of a high-safety individual rocket projectile in an axial M-M section; wherein the M-M section is parallel to the fuse axis.

FIG. 12 is a cross-sectional view of a high-safety electromechanical triggering fuse of an individual rocket projectile bottom along a radial direction N-N; wherein the N-N profile is perpendicular to the fuse axis.

FIG. 13 is a cross-sectional view of an electromechanical trigger fuse of the bottom of a high-safety individual rocket projectile in the axial direction P-P; wherein the P-P profile is parallel to the fuse axis.

FIG. 14 is a cross-sectional view of an electromechanical trigger fuse of the bottom of a high-safety individual rocket projectile taken along the axial direction Q-Q; wherein the Q-Q profile is parallel to the fuse axis.

In the figure, 1 is a body, 2 is a shell, 3 is an electric detonator, 4 is a detonating tube, 5 is a detonating tube, 6 is a vertical rotor explosion-proof mechanism, 7 is a dual-freedom-degree recoil safety mechanism, 8 is a gunpowder delayed release explosion-proof and safety mechanism, 9 is an inertial needling ignition mechanism, 10 is a linear generator module, 11 is a gunpowder self-destruction and fire-proof mechanism, 12 is a second positioning pin, 13 is a base, 14 is an inertial trigger switch, 15 is a bottom cap, and 16 is an electronic control module; the explosive guide tube shell 41, the explosive guide tube shell 42, the first reinforcing cap 43, the explosive guide tube shell 51, the explosive guide tube shell 52, the second reinforcing cap 53, the end cover 61, the vertical rotor 62, the first positioning pin 63, the torsion spring 64, the flame detonator 65, the screw 66, the spacer 67, the third positioning pin 68, the safety ball 71, the upper inertia tube 72, the lower inertia tube 73, the first inertia spring 74, the second inertia spring 75, the baffle 76, the delay agent 81, the safety pin 82, the screw ring 83, the needle detonator 91, the firing pin 92, the firing pin 93, the gasket 94, the safety sheet 101, the linear generator 103, the bracket 104, the first retainer 105, the first power tube 111, the self-destroying delay tube 112, the second retainer 113 and the second power tube 113.

In the above-mentioned constitution unit, only the first locating pin, the second locating pin and the screw are two, and the rest is one. In order to save volume, many parts have multiple functions, involving different mechanisms.

Detailed Description

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

Referring to fig. 1 to 14, the high-safety electromechanical triggering fuse for the bottom of an individual rocket projectile comprises a body 1, a shell 2, an electric detonator 3, a detonating tube 4, a detonating tube 5, a vertical rotor explosion-proof mechanism 6, a double-degree-of-freedom recoil safety mechanism 7, a gunpowder delayed release explosion-proof and safety mechanism 8, an inertial needling ignition mechanism 9, a linear generator module 10, a gunpowder self-destruction and fire insulation mechanism 11, a second positioning pin 12, a base 13, an inertial trigger switch 14, a bottom cap 15, an electronic control module 16 and a collision trigger switch; the body 1, the shell 2 and the base 13 are structural members; the body 1 is approximately in a revolving body shape, and is provided with a first stepped hole downwards from the top surface along the center of the body, and sequentially comprises a first stepped hole, a second stepped hole, a third stepped hole and a fourth stepped hole; the outer side wall of the body 1 is provided with a second stepped hole communicated with a third stepped hole, and a fifth stepped hole, a sixth stepped hole, a seventh stepped hole and an eighth stepped hole are sequentially formed from left to right; a third stepped hole communicated with a seventh stepped hole is eccentrically arranged at the bottom of the body 1 along the axial direction; the bottom of the body 1 is eccentrically provided with a fourth stepped hole communicated with an eighth stepped hole along the axial direction, the first stepped hole, the third stepped hole and the fourth stepped hole are coplanar, and the third stepped hole is positioned between the fourth stepped hole and the first stepped hole; a fifth stepped hole is eccentrically arranged at the bottom of the body 1 along the axial direction; the bottom of the body 1 is provided with two first blind holes eccentrically along the axial direction, and the first blind holes do not interfere with the third stepped holes, the fourth stepped holes and the fifth stepped holes; the side surface of the body 1 is provided with a first through hole which is communicated with a sixth-order hole along the radial direction; the body 1 is arranged in the shell 2; the detonating tube 4 is arranged in the first-order hole, the detonating tube 5 is arranged above the body 1 and is attached to the detonating tube 4 below the detonating tube, and the detonating tube 4 and the detonating tube 5 are coaxial with the body 1, namely the fuze. The vertical rotor explosion-proof mechanism 6 is arranged in the second stepped hole, the inertia acupuncture ignition mechanism 9 is arranged in the third stepped hole, and the linear generator module 10 is arranged in the fifth stepped hole; the base 13 is arranged in the bottom cap 15 and is fixed below the body 1 through the bottom cap 15; two second positioning pins 12 are respectively pressed into the first blind holes along one axial end, and the other ends of the second positioning pins extend into preset blind holes of the base 13; the dual-degree-of-freedom squat safety mechanism 7 is arranged in a preset axial stepped hole in the end cover 61 of the vertical rotor explosion-proof mechanism 6; the gunpowder delayed release explosion-proof and safety mechanism 8 is arranged in the first through hole; the inertia trigger switch 14 is arranged in an axial preset blind hole at the other side of the end cover 61; the gunpowder self-destruction and fire-insulation mechanism 11 is arranged in a blind hole at the bottom of the center of the base 13 and a fourth stepped hole, and a fire transmission channel is pre-arranged between the blind hole and the fourth stepped hole; the electronic control module 16 is arranged between the end cap 61 and the body 1; the acupuncture detonator 91 of the inertial acupuncture ignition mechanism 9 is used for the flame detonator 65 of the sympathetic explosion vertical rotor explosion suppression mechanism 6; the flame detonator 65 of the vertical rotor explosion-proof mechanism 6 is used for detonating the detonating tube 4 and is in a dislocation explosion-proof state at ordinary times, and the axis of the flame detonator is staggered with the axis of the detonating tube to form an included angle of 60-120 degrees; aligning the detonating tube 4 in front of the fuse and the electric detonator 3 behind the fuse after the fuse is released; the impact trigger switch adopts a mature technology and is independently arranged and is not shown in the figure; the dual-degree-of-freedom squat safety mechanism 7 realizes squat safety for the vertical rotor explosion-proof mechanism 6; the gunpowder delayed release explosion-proof and safety mechanism 8 realizes the safety and delay release explosion-proof of the vertical rotor explosion-proof mechanism 6; the linear generator module 10 is driven by the explosion of the first power pipe 105 to generate electric energy to supply power to the fuze electronic control module 16; the gunpowder self-destruction and fire-insulation mechanism 11 realizes the self-destruction and fire-insulation functions of the ignition fault fuze; the detonating tube 4 and the detonating tube 5 are used for amplifying the output energy of the flame detonator 65; the impact trigger switch is in the prior art and is positioned on the warhead and is used for realizing the impact trigger function, including the functions of firing at a large angle and firing at a small angle; the inertial needling ignition mechanism 9 and the inertial trigger switch 14 realize the standby trigger function of the rocket projectile head fuze impact trigger switch, wherein the inertial trigger switch 14 is a mature technology and can realize the ground wiping and explosion (small drop angle ignition) function; the electronic control module 16 is used for storing energy and controlling the electric detonator 3 to fire.

Further, the vertical rotor explosion-proof mechanism 6 comprises an end cover 61, a vertical rotor 62, a torsion spring 64, a flame detonator 65, a spacer 67, a third positioning pin 68, a body 1, two first positioning pins 63 and two screws 66, wherein the end cover 61 is positioned in a fifth-stage hole, the inner end surface of the end cover 61 is clung to the bottom of the fifth-stage hole, and the end cover 61 is fixed on the body 1 through the two first positioning pins 63 and the two screws 66; the vertical rotor 62 is composed of a first cylinder, a second cylinder, a third cylinder, a fourth cylinder and a fifth cylinder from left to right, wherein the first cylinder passes through the preset through hole of the end cover 61 rightwards, the second cylinder, the third cylinder and the fourth cylinder are arranged in the sixth-order hole, the fifth cylinder is arranged in the seventh-order hole, a first axial through groove is formed in the first cylinder, and the vertical rotor 62 realizes axial limit through the inner end face of the fourth cylinder, the bottom of the sixth-order hole and the inner end face of the end cover 61; a second-order through hole is formed along the radial direction of the third cylinder and forms an included angle of 60-120 degrees with the axis of the detonating tube, wherein the diameter of the second-order through hole is a ninth-order hole, the diameter of the second-order through hole is a tenth-order hole, and the input end of the flame detonator is inwards located in the ninth-order hole and fixed by point riveting; in the assembled state, the axis of the flame detonator and the axis of the detonating tube form an included angle of 60-120 degrees; the bottom of the fifth cylinder is slightly deviated from the center of the fifth cylinder, a second blind hole is arranged along the axial direction of the vertical rotor, and the second blind hole is communicated with a tenth-order hole; the side surface of the fourth cylinder is provided with a first fire transfer hole along the radial direction of the vertical rotor, and the first fire transfer hole is communicated with the second blind hole; the third cylinder is eccentrically provided with a third blind hole along the axial direction of the vertical rotor, the third positioning pin 68 is in a ladder shape, one end with a large diameter is pressed into the third blind hole and fixed by point riveting, and the other end with a small diameter penetrates into an arc-shaped groove preset on the end cover 61; the torsion spring 64 is in a pre-torsion state, one end of the torsion spring is sleeved in the first axial through groove, and the other end of the torsion spring is embedded in the eccentric axial hole on the end cover 61; the side surface of the end cover 61 is provided with a sixth stepped hole along the axial direction of the parallel fuse, and the double-freedom-degree squat safety mechanism 7 is arranged in the stepped hole; the other side of the end cap 61 is provided with a fourth blind hole along its parallel fuze axis, in which the inertia trigger switch 14 is disposed.

Further, two paths of explosion propagation channels are arranged on the vertical rotor 62, namely, electric ignition in the central axial direction (comprising a head impact trigger switch, a standby inertia trigger switch 14 and electronic delay self-destruction/fire-insulation control), radial mechanical ignition (a standby inertia acupuncture ignition mechanism 9) and flame ignition (an ignition detonator 91 is penetrated after timing of a delay tube), so that the reliability of triggering ignition, self-destruction ignition and fire insulation is improved while the instantaneous ignition degree of the detonator is ensured.

Further, a pressure relief hole is formed in the body 1, which is close to the output end of the detonator, a spacer 67 is additionally arranged at the orifice, and a shell 1 is arranged outside the spacer 67, so that the contradiction between explosion suppression safety and detonation safety is solved.

Further, the vertical rotor 62 is eccentrically provided with the radially input acupuncture detonator 91, the axial wall is blocked at ordinary times, the acupuncture needle 93 cannot acupuncture, the acupuncture ignition channel is opened after the vertical rotor 62 is turned right, the acupuncture ignition is not blocked, and the structure is simplified.

Further, the power generation function of the linear power generator module 10, the fire insulation and self-destruction function of the gunpowder self-destruction and fire insulation mechanism 11 and the insurance and delay release insurance function of the gunpowder delay release explosion-proof and insurance mechanism 8 share the ignition environment of the bottom rocket engine partition igniter, so that the structure is simplified, and the structure is compact, the function is complete, the safety is high, and the function is reliable.

Further, the side surface of the body 1 is eccentrically provided with a second axial through groove along the axis, the side surface of the base 13 is eccentrically provided with a third axial through groove along the axis, the second axial through groove and the third axial through groove are identical in groove type, and the second axial through groove and the third axial through groove can be visually aligned during assembly.

Further, the gunpowder delayed release explosion-proof and safety mechanism 8 comprises a delay agent 81, a safety pin 82, a coil 83, a body 1, a shell 2, a base 13 and a second power tube 113, wherein the delay agent 81, the safety pin 82 and the coil 83 are all in a shape of a revolving body, the coil 83 is provided with a second-order through hole along the axial direction, wherein the diameter of the coil 83 is larger than that of the eleventh-order hole, and the diameter of the coil 83 is smaller than that of the twelfth-order hole; the delay agent 81 is arranged in the eleventh-order hole and the twelfth-order hole, and a through hole is formed in the center of the delay agent; the left end of the safety pin 82 is hemispherical and is propped against the preset arc-shaped groove on the inner end surface of the third cylinder, and the right end of the safety pin extends into the left end surface of the eleventh Kong Dizhu delay agent 81.

Further, the linear generator module 10 includes a rupture disc 101, a linear generator 102, a bracket 103, a first retainer ring 104, a first power pipe 105, and a body 1; the fifth stepped hole is a twelfth stepped hole, a thirteenth stepped hole and a fourteenth stepped hole from bottom to top, the upper end surface of the safety disc 101 abuts against the stepped surface between the thirteenth stepped hole and the fourteenth stepped hole, and the lower end surface of the safety disc abuts against the upper end surface of the linear generator 102; the first retainer ring 104 is fixed in the twelfth-order hole through point riveting; the bracket 103 is arranged between the linear generator 102 and the first check ring 104; the top surface of the bracket 103 is provided with a seventh stepped hole along the axial direction, a fifteenth stepped hole, a sixteenth stepped hole and a seventeenth stepped hole are formed from top to bottom, the first power pipe 105 is fixed in the seventeenth stepped hole in a point riveting way, the output end of the first power pipe is propped against a step surface between the sixteenth stepped hole and the seventeenth stepped hole, and the input end of the first power pipe is propped against the upper end surface of the first check ring 104; part of the magnetic core of the linear generator 102 extends into the fifteenth-stage hole; a blind hole is eccentrically arranged along the axial direction of the body, the blind hole is communicated with the bottom of the fourteenth-order hole, and the output line of the linear generator 102 is led out from the blind hole.

Further, the gunpowder self-destruction and fire-insulation mechanism 11 comprises a self-destruction delay tube 111, a second retainer ring 112, a second relay tube 113 and a body 1; a sixth blind hole is formed in the bottom end of the base 13 axially upwards along the center, and the input end of the second power pipe 113 is fixed in the sixth blind hole towards the lower point in a riveting mode; the upper end surface of the base 13 is provided with a second fire transfer hole downwards, and the hole is communicated with the sixth blind hole and is used as an explosion transfer channel of the second power pipe 113; the fourth stepped hole is an eighteenth hole and a nineteenth hole from bottom to top, the eighteenth hole is communicated with the second fire transmission hole, and the nineteenth hole is communicated with the ninth hole; the second retainer ring 112 is riveted and fixed in an eighteenth-order hole, and the input end of the self-destruction delay tube 111 is downwards fixed in a nineteenth-order hole; the output end of the self-destroying delay tube 111 radially centers the rotor shaft, and no matter whether the vertical rotor 62 is normally rotated, the self-destroying delay tube 111 detonates the acupuncture detonator 91 in the rotor shaft; thereby ensuring the self-destruction of the fuze and the fire-transmission reliability.

The main safety principle of the electromechanical triggering fuze of the bottom of the high-safety individual rocket projectile is as follows:

during service treatment, the fuze is in an explosion-proof state, namely a factory assembly state, and is subjected to trusted impact and vibration, including accidental falling, transportation vibration and the like, so that the fuze cannot be accidentally relieved of insurance and accidentally exploded. The dual-degree-of-freedom squat safety mechanism 7 realizes redundant safety of the vertical rotor 62 of the flameproof through the safety ball 71 and the gunpowder delay release flameproof and safety mechanism 8 and through the safety pin 82, and ensures that the vertical rotor 62 is positioned in a flameproof state at ordinary times. The dual degree of freedom squat safety mechanism 7 does not accidentally arm the vertical rotor 62 when a fuze or projectile is dropped to any target in any attitude at a height of less than 1.5 m. The firing pin spring 92 in the inertial pin firing mechanism 9 ensures that the firing pin does not strike the vertical rotor shaft wall and damage the firing pin tip when the fuze head is accidentally dropped down on the ground. Failure of any single safety mechanism will not un-secure the vertical rotor 62, i.e., the vertical rotor 62 will not accidentally turn right, thereby ensuring the safety of the fuze in the event of a trusted failure of the safety mechanism. In the case where the vertical rotor 62 is not relieved, the detonator 4 located in the first-stage hole is offset from the axis of the flame detonator 65, and the detonator 4 is not detonated even if the flame detonator 65 accidentally fires and explodes. If the vertical rotor 62 is not relieved, the ninth hole as the explosion propagation passage is not aligned with the detonating tube 4, and even if the needle detonator 91 accidentally fires, the flame detonator 65 will be detonated, but the detonating tube 4 will not be detonated, and the detonator will be safe in explosion isolation and enter an insulating state. The pressure release cavities are arranged around the needle detonator 91 and the flame detonator 65, and after any one or two of the needle detonator 91 and the flame detonator 65 are ignited and exploded accidentally, the pressure in the detonator is ensured to be reduced, and the detonator is not disassembled and is not broken to the outside.

The invention relates to a high-safety single-soldier rocket projectile bottom electromechanical trigger fuze, which mainly comprises the following working processes:

when the rocket projectile is launched, the upper and lower inertial barrels in the dual-degree-of-freedom recoil safety mechanism 7 compress the inertial spring to move downwards under the action of recoil overload until the upper end face of the upper inertial barrel 72 is lower than the safety ball 71, the limit on the safety ball 71 is released, the safety ball 71 moves downwards along the inclined hole under the action of recoil force until the safety ball 71 falls into a blind hole preset in the upper end face of the upper inertial barrel 71, and the first safety on the vertical rotor 62 is released. The rocket engine combustion signal is transmitted to the warhead chamber through the partition board igniter under the condition that the partition board is still sealed, the second power tube 113 positioned on the fuze at the center of the bottom of the warhead is ignited in a flame mode, one part of flame generated by the combustion of the second power tube 113 is transmitted to the fourth stepped hole through the second flame transmitting hole and is self-destructed by the center Kong Yinran of the second retainer ring 112, the other part of flame is transmitted to the gunpowder delay release explosion-proof and safety mechanism 8 through the second flame transmitting hole, the third axial through groove and the second axial through groove, the delay powder 81 is ignited through the center hole of the helicoid 83, the rest part of flame is transmitted to the fifth stepped hole through the second flame transmitting hole, and the first power tube 105 is ignited through the first retainer ring 104. The first power tube 105 acts on the magnetic core of the linear generator 102 through the sixteenth step Kong Chuanbao after being ignited and exploded to push the magnetic core to shear the rupture disc 101 upwards, so that magnetic force lines in the cutting coil generate electric energy to supply power for the electronic control module 16.

In the flying process of the rocket projectile, the combustion of the delay powder 81 causes the delay powder 81 in the explosive-proof and safety-relieving mechanism 8 to be changed from solid state to gas state, and the safety pin 82 is released, so that the safety pin 82 also releases the safety of the vertical rotor 62. The torsion spring 64 will then, under the effect of its pre-torque, push the safety pin 82 away from the vertical rotor 62 by means of the arcuate slot thereon, thereby rotating the vertical rotor through a predetermined angle (60 ° -120 °), causing the tenth-order hole to coincide or substantially coincide with the axis of the detonator, causing the explosion sequence to align, i.e., the flame detonator 65 in the vertical rotor 62 to align with the detonator 4, the detonator being released and in a armed state.

After the rocket projectile hits a target or a target area, including the conditions of large landing angle, small landing angle and floor cleaning and frying, a collision trigger switch positioned at the head of the rocket projectile is closed, and the electric detonator 3 fires through a firing control circuit, so that the detonator acts normally (under the premise of normally releasing the insurance) or acts in a fire-insulating manner (under the condition of not releasing the insurance unexpectedly).

If the impact trigger switch of the rocket projectile head is influenced by factors such as the target attitude, the impact speed, the target strength and the like and fails to act accidentally, the inertia trigger switch 14 positioned in the fourth blind hole of the end cover 61 is closed, the electric detonator 3 fires and explodes through the firing control electronic control module 16 to detonate the flame detonator 65 positioned in the ninth-order hole, the flame detonator 65 explodes the subsequent detonating tube 4 through the tenth-order hole, namely the explosion-transmitting channel, then the subsequent detonating tube 5 is detonated, and the fuze completes the preset standby inertia electric triggering detonating effect.

If the above process still fails, that is, the electric detonator 3 is not fired or the flame detonator 65 cannot be reliably detonated after the electric detonator is fired due to various unexpected reasons, when the rocket projectile hits a target or a target area, the firing pin 93 in the detonator moves forward under the forward impact overload action to compress the firing pin spring 92, so that the firing pin on the firing pin is pre-opened to pierce the needle detonator 91 through the fifth cylindrical side surface of the vertical rotor 62, the flame detonator 65 is detonated after the needle detonator 91 is fired, the subsequent detonating tube 4 is detonated through the tenth-order hole, that is, the subsequent detonating tube 5 is detonated, and the detonator realizes the preset standby inertia triggering function. When the rocket projectile lands on the ground at a small falling angle, the inertial trigger switch 14 can still move according to a preset working process, so that the electric detonator 3 is ensured to fire and explode, and the reliable ground wiping and explosion effect of the detonator is ensured.

If the fuse fails to normally release the fuse or the triggering function is not realized after releasing the fuse accidentally, the self-destruction delay tube 111 with the delay function can pass through the ninth step Kong Yinbao to be perpendicular to the needle detonator 91 in the rotor 62 after the rocket is landed, so that the flame detonator 65 positioned in the tenth step hole is through the ninth step Kong Yinbao, and meanwhile, the electric detonator 3 below the fuse is detonated through the first fire transmission hole of the fourth cylinder, so that the fuse can complete self destruction (if the fuse is released) or fire insulation (if the fuse is not released). The fuse entering the fire-insulating state can ensure the explosive treatment safety of the non-explosive bomb. If the firing pin 93 normally pierces the detonator 91, the delay element self-destruct delay tube 111 also explodes. In addition to the delay tube powder self-destruction described above, the fuze also has an electronic timing self-destruction function implemented by the electronic control module 16. On the premise of ensuring the full-trajectory flight of the rocket projectile, the electric detonator 3 is detonated after timing. If the fuse is disarmed, the fuse is self-destroyed. If the fuse is accidentally released, the fuse is fire-insulated. In addition, the fuze electronic control module 16 is also designed with an electrical ignition energy dissipation characteristic. With the firing timing, the electric firing energy intended for the electric detonator 3 is dissipated within a few minutes after the rocket projectile has landed.

The fuse booster is made of black-14, so that the requirements of GJB373B-2019 on booster safety design criteria are met, and the situation that the fuse booster is not excessively fired due to accidental firing under the assembly condition, during service processing and in the emission process can be ensured.

Claims

1. The utility model provides a high security individual soldier rocket projectile bottom electromechanical trigger fuse which characterized in that: the explosive-free self-destruction type electric detonator comprises a body (1), a shell (2), an electric detonator (3), a detonating tube (4), a detonating tube (5), a vertical rotor explosion-proof mechanism (6), a double-degree-of-freedom squat safety mechanism (7), a gunpowder delayed release explosion-proof and safety mechanism (8), an inertial needling ignition mechanism (9), a linear generator module (10), a gunpowder self-destruction and fire-insulation mechanism (11), a second positioning pin (12), a base (13), an inertial trigger switch (14), a bottom cap (15), an electronic control module (16) and a collision trigger switch; the body (1) is in a revolving body shape, and a first stepped hole is formed downwards from the top surface of the body along the center of the body, and sequentially comprises a first stepped hole, a second stepped hole, a third stepped hole and a fourth stepped hole; the outer side wall of the body (1) is provided with a second stepped hole communicated with a third stepped hole, and a fifth stepped hole, a sixth stepped hole, a seventh stepped hole and an eighth stepped hole are sequentially formed from left to right; a third stepped hole communicated with a seventh stepped hole is eccentrically arranged at the bottom of the body (1) along the axial direction; the bottom of the body (1) is eccentrically provided with a fourth stepped hole communicated with an eighth stepped hole along the axial direction, the first stepped hole, the third stepped hole and the fourth stepped hole are coplanar, and the third stepped hole is positioned between the fourth stepped hole and the first stepped hole; a fifth stepped hole is eccentrically arranged at the bottom of the body (1) along the axial direction; the bottom of the body (1) is provided with two first blind holes eccentrically along the axial direction, and the first blind holes do not interfere with the third stepped holes, the fourth stepped holes and the fifth stepped holes; a first through hole communicated with a sixth-order hole is formed in the side surface of the body (1) along the radial direction; the body (1) is arranged in the shell (2); the detonating tube (4) is arranged in the first-order hole, the detonating tube (5) is arranged above the body (1), the bottom surface of the detonating tube (5) is adjacent to the detonating tube (4), and the detonating tube (4) and the detonating tube (5) are coaxial with the body (1), namely the fuze; the vertical rotor explosion-proof mechanism (6) is arranged in the second stepped hole, the inertia acupuncture ignition mechanism (9) is arranged in the third stepped hole, and the linear generator module (10) is arranged in the fifth stepped hole; the base (13) is arranged in the bottom cap (15) and is fixed below the body (1) through the bottom cap (15); two second locating pins (12) are respectively pressed into the first blind holes along one axial end, and the other ends of the second locating pins extend into preset blind holes of the base (13); the double-degree-of-freedom squat safety mechanism (7) is arranged in a preset axial stepped hole in an end cover (61) of the vertical rotor explosion-proof mechanism (6); the gunpowder delayed release explosion-proof and safety mechanism (8) is arranged in the first through hole; the inertia trigger switch (14) is arranged in an axial preset blind hole at the other side of the end cover (61); the gunpowder self-destruction and fire insulation mechanism (11) is arranged in a blind hole at the bottom of the center of the base (13) and a fourth stepped hole, and a fire transmission channel is pre-arranged between the blind hole and the fourth stepped hole; the electronic control module (16) is arranged between the end cover (61) and the body (1); the acupuncture detonator (91) of the inertia acupuncture ignition mechanism (9) is used for detonating the flame detonator (65) of the vertical rotor explosion-proof mechanism (6); the flame detonator (65) of the vertical rotor explosion-proof mechanism (6) is used for detonating the detonating tube (4) and is in a dislocation explosion-proof state at ordinary times, the axis of the flame detonator is staggered with the axis of the detonating tube to form an included angle of 60-120 degrees, and the detonating tube (4) in front of the flame detonator and the subsequent electric detonator (3) are aligned after the fuse is relieved; the dual-degree-of-freedom squat safety mechanism (7) realizes squat safety for the vertical rotor explosion-proof mechanism (6); the gunpowder delay release explosion-proof and safety mechanism (8) realizes the safety and delay release explosion-proof of the vertical rotor explosion-proof mechanism (6); the linear generator module (10) is driven by explosion of the first power pipe (105) so as to generate electric energy to supply power to the fuze electronic control module (16); the gunpowder self-destruction and fire insulation mechanism (11) realizes the self-destruction and fire insulation functions of the ignition fault fuze; the detonating tube (4) and the detonating tube (5) are used for amplifying the output energy of the flame detonator (65); the impact trigger switch is positioned on the warhead and is used for realizing impact trigger functions, including large-angle ignition and floor mopping; the inertial needling ignition mechanism (9) and the inertial trigger switch (14) realize the standby trigger function of the rocket projectile head fuze impact trigger switch; the electronic control module (16) is used for storing energy and controlling the electric detonator (3) to fire.

2. A high security individual rocket launcher bottom mechatronic trigger fuse according to claim 1, characterized in that: the vertical rotor explosion-proof mechanism (6) comprises an end cover (61), a vertical rotor (62), a torsion spring (64), a flame detonator (65), a spacer (67), a third locating pin (68), two first locating pins (63) and two screws (66), wherein the end cover (61) is positioned in a fifth-order hole, the inner end surface of the end cover is tightly attached to the bottom of the fifth-order hole, and the end cover (61) is fixed on the body (1) through the two first locating pins (63) and the two screws (66); the vertical rotor (62) is composed of a first cylinder, a second cylinder, a third cylinder, a fourth cylinder and a fifth cylinder from left to right, the first cylinder passes through a preset through hole of the end cover (61) to the right, the second cylinder, the third cylinder and the fourth cylinder are arranged in a sixth-order hole, the fifth cylinder is arranged in a seventh-order hole, a first axial through groove is formed in the first cylinder, and the vertical rotor (62) realizes axial limit through the inner end face of the fourth cylinder, the bottom of the sixth-order hole and the inner end face of the end cover (61); a second-order through hole is formed along the radial direction of the third cylinder and forms an included angle of 60-120 degrees with the axis of the detonating tube, wherein the diameter of the second-order through hole is a ninth-order hole, the diameter of the second-order through hole is a tenth-order hole, and the input end of the flame detonator (65) is inwards located in the ninth-order hole and fixed by point riveting; in the assembled state, the axis of the flame detonator and the axis of the detonating tube form an included angle of 60-120 degrees; the bottom of the fifth cylinder is eccentrically provided with a second blind hole along the axial direction of the vertical rotor, and the second blind hole is communicated with a tenth-order hole; the side surface of the fourth cylinder is provided with a first fire transfer hole along the radial direction of the vertical rotor, and the first fire transfer hole is communicated with the second blind hole; the third cylinder is provided with a third blind hole eccentrically along the axial direction of the vertical rotor, the third positioning pin (68) is in a ladder shape, one end with a large diameter is pressed into the third blind hole and fixed by point riveting, and the other end with a small diameter penetrates into an arc-shaped groove preset on the end cover (61); the torsion spring (64) is in a pre-torsion state, one end of the torsion spring is sleeved in the first axial through groove, and the other end of the torsion spring is embedded in an eccentric axial hole on the end cover (61); a sixth stepped hole is formed in the side surface of the end cover (61) along the axial direction of the parallel fuze, and the double-freedom-degree squat safety mechanism (7) is arranged in the sixth stepped hole; the other side surface of the end cover (61) is provided with a fourth blind hole along the axial direction of the parallel fuze, and the inertia trigger switch (14) is arranged in the fourth blind hole.

3. A high security individual rocket warhead mechatronic trigger fuse according to claim 2, wherein: two paths of explosion propagation channels, namely electric ignition in the central axial direction, radial mechanical ignition and flame ignition, are arranged on the vertical rotor (62), so that the reliability of triggering ignition, self-destruction ignition and fire insulation is improved while the instantaneous ignition degree of the fuze is ensured.

4. A high security individual rocket warhead mechatronic trigger fuse according to claim 2, wherein: the pressure relief hole is formed in the body (1) close to the detonator output end, the spacer (67) is additionally arranged at the orifice, and the shell (1) is arranged outside the spacer (67), so that the contradiction between explosion suppression safety and detonation safety is solved.

5. A high security individual rocket warhead mechatronic trigger fuse according to claim 2, wherein: the vertical rotor (62) is eccentrically provided with a radially input needling detonator (91), the axial wall is blocked at ordinary times, the needling needle (93) cannot be needled, a needling ignition channel is opened after the vertical rotor (62) is turned right, needling ignition is not blocked, and the structure is simplified.

6. A high security individual rocket launcher bottom mechatronic trigger fuse according to claim 1, characterized in that: the linear generator module (10) has the functions of generating electricity, self-destroying powder and insulating powder, the insulating powder and self-destroying powder of the powder self-destroying and insulating powder mechanism (11), and the functions of delaying the release of the explosion-proof and insulating powder of the powder mechanism (8) and delaying the release of the explosion-proof and insulating powder share the ignition environment of the partition board igniter of the bottom rocket engine, so that the structure is simplified, and the structure is compact, the functions are complete, the safety is high, and the effect is reliable.