Fuse for realizing redundant insurance by using electric gunpowder pin pusher and symmetrical electromagnetic pin puller

Abstract

The invention discloses a fuze for realizing redundant insurance by using an electric gunpowder pin pusher and a symmetrical electromagnetic pin puller, and three electric actuators are controlled by an ammunition or weapon system to respectively release insurance through mutually independent electric signals according to different information such as launching, ballistic flight, guidance or targets; the electromagnetic pin puller solves the problem of poor service processing safety when a single electromagnetic pin puller is applied. The electromagnetic pin puller mainly comprises a horizontal rotor explosion-proof mechanism, a detonating tube, a booster tube, an upper body, a body, a first electromagnetic pin puller, a second electromagnetic pin puller, an electric ignition tube, an electric gunpowder pin pusher, a safety piece, an inertia trigger switch, an electronic control system and the like. Wherein the electromagnetic pin puller relieves safety prior to the electric gunpowder pin pusher, and otherwise, the electric gunpowder pin pusher enters a fault safety state. The electric ignition tube is detonated through target information to achieve main ignition, the electric ignition tube is detonated through guidance information or trajectory information to achieve self-destruction ignition, the electric ignition tube is closed and detonated through the inertia trigger switch to achieve standby ignition, and the unmanned aerial vehicle fuze device is mainly suitable for unmanned aerial vehicle fuze.

Description

Technical Field

[0001] The present invention belongs to an electromechanical trigger fuze, and specifically relates to a fuze which uses an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance. The fuze is particularly suitable for situations where the ballistic mechanics environment recognition is not high but there are more than two target indirect electrical signals available, such as unmanned aerial vehicles. Background Art

[0002] The electromagnetic pin puller is a small device that realizes the conversion of electrical and mechanical signals. It is mainly used to release the fuse in the fuze. It has the characteristics of simple structure, small size and reliable operation. It has been widely used in the fuzes of various weapon platforms. The document "Application of electromagnetic pin puller in a certain fuze" (Wang Yuyong, Chen Xingqiu, Han Zhao. Application of electromagnetic pin puller in a certain fuze [J]. Mine Warfare and Ship Protection, 2012, 20(04): 58-60.) introduces the composition and principle of the electromagnetic pin puller for a certain fuze. The electromagnetic pin puller is mainly composed of a safety pin, a gasket, a spring, an excitation coil, a stopper, a coil frame, a terminal board, a shell, etc. During the fuze service processing, the safety pin in the electromagnetic pin puller locks the position of the explosion-proof component under the action of the pre-stressed spring, providing a safety function. After the projectile is launched, at the predetermined time, the electromagnetic pin puller uses the electromagnetic conversion principle to generate electromagnetic force by powering on to absorb the safety pin. The safety pin overcomes the spring resistance and moves to release the lock on the explosion-proof component, realizing the release of the safety.

[0003] The safety mechanism designed in the "Design and Experiment of MEMS Centrifugal Flameproof Mechanism for Fuze" (Deng Jufeng, Shi Chunjing, Hao Yongping, et al. Design and Experiment of MEMS Centrifugal Flameproof Mechanism for Fuze [J]. Nanotechnology and Precision Engineering, 2016, 14(02): 124-129), Chinese Patent 201710498539.8 "An Electromagnetic Constraint Isolation Mechanism Based on Inertia" and Chinese Patent 201911104507.0 "A MEMS Rotor Safety System and Method for Electromagnetic Driven by Weak Force", all use a single electromagnetic pin puller. In terms of structural principle, the electromagnetic force overcomes the spring resistance to release the safety. The normal safety depends on the spring resistance, which is limited by the electromagnetic force and cannot be very large. A fall in an unfavorable position or even extreme vibration may accidentally release the safety, so the safety of the fuze service handling cannot be fundamentally guaranteed. In other words, such a single electromagnetic pin puller safety mechanism cannot independently perform the safety function and is not an independent safety mechanism required by redundant safety. Summary of the invention

[0004] The purpose of the present invention is to provide a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant safety, wherein the two electromagnetic pin pullers release the safety before the electric powder pusher, otherwise the fuse enters a failsafe state. The present invention uses target information to detonate an electric ignition tube to achieve main ignition, uses guidance information or ballistic information to detonate an electric ignition tube to achieve self-destructive ignition, and uses an inertial trigger switch to close and detonate an electric ignition tube to achieve backup ignition.

[0005] A technical solution to achieve the purpose of the present invention: A fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance includes an upper cover, a horizontal rotor explosion-proof mechanism, a detonating tube, a detonating tube, an upper body, a main body, a first electromagnetic pin puller, a second electromagnetic pin puller, a screw plug, an electric powder pusher, an electric ignition tube, a bottom cover, a safety piece, an electronic control system, four first screws, two second screws, two inertia trigger switches and two first positioning pins; the upper body is fixed to the top surface of the main body, and the bottom surface of the upper body is a two-step stepped surface, which is the first step surface and the second step surface from bottom to top; the top surface of the main body is also a two-step stepped surface, which is the third step surface and the fourth step surface from top to bottom, the first step surface cooperates with the fourth step surface, and the second step surface is in sync with the third step surface. The first step hole is provided from the top surface of the upper body downward along its axis, and includes the first step hole, the second step hole and the third step hole in sequence from top to bottom; a first blind hole is eccentrically arranged axially upward from the second step surface; the aperture of the first blind hole is larger than the aperture of the third step hole; the first blind hole and the third step hole are connected through a first through hole; a second step hole connected to the second step hole is eccentrically arranged axially upward from the second step surface, and the second step hole is located on the left side of the first blind hole; a third step hole connected to the first step surface is eccentrically arranged axially downward from the bottom of the second step hole, and the third step hole is located on the right side of the first blind hole; a fourth step hole is eccentrically arranged axially downward from the third step surface; a fourth step hole is eccentrically arranged axially downward from the fourth step surface a second blind hole laterally connected to the fourth step hole; a third blind hole is eccentrically arranged axially upward from the bottom of the body; a fifth step hole connected to the fourth step hole is arranged upward along the central axis of the body from the bottom of the third blind hole; a fourth blind hole is eccentrically arranged axially upward from the bottom of the body; the fourth blind hole and the third step surface are connected through the second through hole; the second through hole is located on the left side of the fourth step hole; a first radial groove is eccentrically arranged axially upward from the bottom of the fourth blind hole and laterally connected to the second through hole; a sixth step hole connected to the fourth step hole is eccentrically arranged axially upward from the bottom of the first radial groove, and the sixth step hole is located between the fifth step hole and the second through hole; a fifth blind hole is eccentrically arranged axially downward from the third step surface of the body, and a fifth blind hole is eccentrically arranged radially from the side of the body A sixth blind hole connected to the fifth blind hole is provided; the upper cover is provided in the first step hole; the horizontal rotor flameproof mechanism is provided in the first blind hole and the fourth step hole; the detonating tube is provided in the lower circular hole of the fifth step hole; the detonating tube is provided in the third blind hole; the first electromagnetic pin puller is provided in the second step hole and the fourth step hole; the second electromagnetic pin puller is provided in the sixth step hole and the fourth step hole; the electric ignition tube is provided in the third step hole; the electric powder pusher is provided in the two circular holes in the lower half of the third step hole; the bottom cover is provided in the fourth blind hole and fixed by two second screws; the safety piece is provided in the second blind hole; two inertial trigger switches arranged in a cross shape are provided in the fifth blind hole and the sixth blind hole respectively; the electronic control system is provided in the second step hole;The two first positioning pins and the four first screws are used for positioning and fixing between the upper body and the main body respectively; the flame detonator of the horizontal rotor explosion-proof mechanism is used to detonate the detonating tube, which is usually in a dislocated state. The detonating tube below it and the electric ignition tube above it can be aligned after the fuse is released; the safety piece, the first electromagnetic pin puller and the second electromagnetic pin puller realize the redundant insurance of the horizontal rotor explosion-proof mechanism; the detonating tube and the transmission tube are used to amplify the explosion output energy of the flame detonator; the inertial trigger switch realizes the backup trigger function; the electronic control system controls the electric ignition tube to realize the main ignition according to the target information obtained by the ammunition or weapon system, including air explosion, near explosion or quasi-trigger ignition of proximity trigger. The power supply and target information come from the overall ammunition. ;

[0006] Compared with the prior art, the present invention has the following significant advantages:

[0007] (1) It meets the requirements of redundant insurance and has main ignition, self-destruction ignition and backup ignition, with high reliability.

[0008] (2) Compact structure, complete functions, low cost, high safety and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The present invention is a structural schematic diagram of a fuze along an axial section that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance.

[0010] Figure 2 This is a cross-sectional view of the BB section of a fuze of the present invention that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The BB section is perpendicular to the fuze axis.

[0011] Figure 3 This is a cross-sectional view of the CC section of a fuze of the present invention that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The CC section is perpendicular to the fuze axis.

[0012] Figure 4 This is a sectional view of the DD section of a fuze of the present invention which uses an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance. The DD section is perpendicular to the fuze axis.

[0013] Figure 5 This is a cross-sectional view of the FF section of a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The FF section is perpendicular to the fuze axis.

[0014] Figure 6 This is a cross-sectional view of the GG section of a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The GG section is parallel to the fuze axis.

[0015] Figure 7This is a cross-sectional view of the HH section of a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The HH section is perpendicular to the fuze axis.

[0016] Figure 8 This is a cross-sectional view of the JJ section of a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The JJ section is parallel to the fuze axis.

[0017] Fig. 9 This is a cross-sectional view of a fuze KK section that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The KK section is parallel to the fuze axis.

[0018] Fig.10 This is a cross-sectional view of the LL section of a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The LL section is parallel to the fuze axis.

[0019] Fig.11 This is a cross-sectional view of the MM section of a fuze of the present invention that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The MM section is parallel to the fuze axis.

[0020] Fig.12 This is a cross-sectional view of the NN section of a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The NN section is perpendicular to the fuze axis.

[0021] Fig.13 The PP section view of a fuze of the present invention which uses an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance. The PP section is parallel to the fuze axis.

[0022] Fig.14 The present invention is a schematic diagram of a top view of the structure of a fuze upper body that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance.

[0023] Fig.15 The QQ section view of the upper body of a fuze of the present invention, which uses an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance, is parallel to the axis of the fuze.

[0024] Fig.16 The present invention is a schematic diagram of a top view of the structure of a fuze body that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance.

[0025] Fig.17 This is a cross-sectional view of the RR section of a fuse body of the present invention that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The RR section is parallel to the axis of the fuse.

[0026] Fig.18The present invention is a schematic diagram of a top view of the structure of a fuze horizontal rotor that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance.

[0027] Fig.19 This is a cross-sectional view of the SS section of the horizontal rotor of a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The SS section is parallel to the fuze axis.

[0028] Fig. 20 This is a cross-sectional view of the TT section of the upper body of a fuze that uses an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance. The TT section is perpendicular to the fuze axis.

[0029] Fig.21 This is a cross-sectional view of the UU section of a fuse body of the present invention which uses an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance. The UU section is parallel to the axis of the fuse.

[0030] Fig. 22 The isometric diagram of a fuze rotor of the present invention which uses an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance.

[0031] Fig.23 The isometric diagram of the fuse body of the present invention which uses an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance.

[0032] In the figure, 1 is the upper cover, 2 is the horizontal rotor flameproof mechanism, 3 is the detonating tube, 4 is the detonating tube, 5 is the upper body, 6 is the main body, 7 is the first electromagnetic pin puller, 8 is the second electromagnetic pin puller, 9 is the screw plug, 10 is the electric gunpowder pusher, 11 is the electric ignition tube, 12 is the bottom cover, 13 is the first positioning pin, 14 is the safety piece, 15 is the first screw, 16 is the second screw, 17 is the inertial trigger switch, 18 is the electronic control system; 21 is the rotor cover, 22 is the horizontal rotor, 23 is the torsion spring, 24 is the second positioning pin, 25 is the third positioning pin, 26 is the flame detonator, 31 is the detonating tube shell, 32 is the detonating charge, 41 is the detonating tube shell, 42 is the detonating charge; 51 is the first step surface, 52 is the second step surface, 53 is the first step hole, 54 is the first blind hole, 55 is The first through hole, 56 is the second stepped hole, 57 is the third stepped hole, and 58 is the seventh blind hole; 531 is the first stepped hole, 532 is the second stepped hole, and 533 is the third stepped hole; 61 is the third stepped surface, 62 is the fourth stepped surface, 63 is the fourth stepped hole, 64 is the second blind hole, 65 is the third blind hole, 66 is the fifth stepped hole, 67 is the fourth blind hole, 68 is the second through hole, 69 is the first radial groove, 610 is the sixth stepped hole, 611 is the fifth blind hole, and 612 is the sixth blind hole; 221 is the second axial groove, 222 is the seventh stepped hole, 223 is the eighth blind hole, 224 is the third axial groove, 225 is the upper arc groove, 226 is the lower arc groove, 227 is the upper radial groove, and 228 is the lower radial groove; 2221 is the fourth step hole, and 2222 is the fifth step hole.

[0033] In the above-mentioned component unit, there are two first positioning pins and two second screws, four first screws, and one for the rest. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Combination Figure 1 to Figure 23 The fuze of the present invention using an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance comprises an upper cover 1, a horizontal rotor flameproof mechanism 2, a detonating tube 3, a detonating tube 4, an upper body 5, a main body 6, a first electromagnetic pin puller 7, a second electromagnetic pin puller 8, a screw plug 9, an electric powder pusher 10, an electric ignition tube 11, a bottom cover 12, a safety piece 14, an electronic control system 18, four first screws 15, two second screws 16, two inertial trigger switches 17 and two first positioning pins 13; the upper body 5 is fixed to the top surface of the main body 6, the bottom surface of the upper body 5 is a two-step stepped surface, which is a first step surface 51 and a second step surface 52 from bottom to top; the top surface of the main body 6 is also a two-step stepped surface, which is a third step surface 61 and a second step surface 52 from top to bottom. There are four step surfaces 62, the first step surface 51 cooperates with the fourth step surface 62, and the second step surface 52 cooperates with the third step surface 61, so as to achieve the shape matching of the main body 6 and the upper body 5; a first step hole 53 is opened from the top surface of the upper body 5 along its axis downward, including a first step hole 531, a second step hole 532 and a third step hole 533 from top to bottom; a first blind hole 54 is eccentrically arranged axially upward from the second step surface 52; the aperture of the first blind hole 54 is larger than the aperture of the third step hole 533; the first blind hole 54 and the third step hole 533 are connected through a first through hole 55; a second step hole 56 connected to the second step hole 532 is eccentrically arranged axially upward from the second step surface 52, and the second step hole 56 is located on the left side of the first blind hole 54 (such as Fig.15); a third stepped hole 57 connected to the first stepped surface 51 is eccentrically arranged axially downward from the bottom of the second stepped hole 532, and the third stepped hole 57 is located on the right side of the first blind hole 54; a fourth stepped hole 63 is eccentrically arranged axially downward from the third stepped surface 61; a second blind hole 64 laterally connected to the fourth stepped hole 63 is eccentrically arranged axially downward from the fourth stepped surface 62; a third blind hole 65 is eccentrically arranged axially upward from the bottom of the body 6; a fifth stepped hole 66 connected to the fourth stepped hole 63 is arranged upward along the central axis of the body 6 at the bottom of the third blind hole 65; a fourth blind hole 67 is eccentrically arranged axially upward from the bottom of the body 6; the fourth blind hole 67 and the third stepped surface 61 are connected through a second through hole 68; the second through hole 68 is located on the left side of the fourth stepped hole 63 (such as Fig.17 ); a first radial groove 69 is eccentrically arranged upward along the axial direction from the bottom of the fourth blind hole 67 and is laterally connected to the second through hole 68; a sixth stepped hole 610 is eccentrically arranged upward along the axial direction from the bottom of the first radial groove 69 and is connected to the fourth stepped hole 63, and the sixth stepped hole 610 is located between the fifth stepped hole 66 and the second through hole 68; a fifth blind hole 611 is eccentrically arranged downward along the axial direction from the third stepped surface 61 of the body 6, and a sixth blind hole 612 is eccentrically arranged radially from the side surface of the body 6 and is connected to the fifth blind hole 611; the upper cover 1 is provided In the first step hole 531; the horizontal rotor flameproof mechanism 2 is arranged in the first blind hole 54 and the fourth step hole 63; the detonator tube 3 is arranged in the lower circular hole of the fifth step hole 66; the detonator tube 4 is arranged in the third blind hole 65; the first electromagnetic pin puller 7 is arranged in the second step hole 56 and the fourth step hole 63; the second electromagnetic pin puller 8 is arranged in the sixth step hole 610 and the fourth step hole 63; the electric ignition tube 11 is arranged in the third step hole 533; the electric explosive sales promoter 10 is arranged in the two circular holes in the lower half of the third step hole 57; The bottom cover 12 is arranged in the fourth blind hole 67 and fixed by two second screws 16; the safety piece 14 is arranged in the second blind hole 64; two inertial trigger switches 17 arranged in a cross shape are respectively arranged in the fifth blind hole 611 and the sixth blind hole 612; the electronic control system 18 is arranged in the second step hole 532; the two first positioning pins 13 and the four first screws 15 are respectively used for positioning and fixing between the upper body 5 and the main body 6; the flame detonator 26 of the horizontal rotor explosion-proof mechanism 2 is used to detonate the detonating tube 3, which is usually in a dislocated state. The fuse is in a state where the detonating tube 3 below and the electric ignition tube 11 above can be aligned only after the fuse is released; the safety piece 14, the first electromagnetic pin puller 7 and the second electromagnetic pin puller 8 realize the redundant insurance of the horizontal rotor flameproof mechanism 2; the detonating tube 3 and the booster tube 4 are used to amplify the explosion output energy of the flame detonator 26; the inertial trigger switch 17 realizes the backup trigger function; the electronic control system 18 controls the electric ignition tube 11 to realize the main firing according to the target information obtained by the ammunition or weapon system, including the quasi-trigger firing of air explosion, near explosion or proximity trigger. The power supply and target information come from the ammunition as a whole.

[0039] Furthermore, the horizontal rotor explosion-proof mechanism 2 includes a rotor cover 21, a horizontal rotor 22, a torsion spring 23, a second locating pin 24, a third locating pin 25 and a flame detonator 26; the second step surface 52 is eccentrically arranged axially upward to form a seventh blind hole 58 that is not connected to any hole of the upper body 5, the top end of the second locating pin 24 is pressed into the seventh blind hole 58, and the lower end passes through the rotor cover 21 and extends into the preset blind hole of the main body 6 to prevent the rotor cover 21 from rotating relative to the main body 6 to achieve circumferential positioning; the main body of the horizontal rotor 22 is arranged in the fourth step hole 63, the upper end of the rotating shaft of the horizontal rotor 22 extends upward from the rotor cover 21, the rotor cover 21 is located on the top surface of the main body of the horizontal rotor 22, and is located in the uppermost step hole of the fourth step hole 63; the horizontal rotor 22 is composed of a first cylinder, a second cylinder and a third cylinder connected in sequence from top to bottom, the second cylinder has the largest diameter, and the first cylinder, that is, the upper end of the rotor shaft passes through The rotor cover 21, the second cylinder and the third cylinder are located in the two step holes at the middle and lower ends of the fourth step hole 63, the first cylinder is provided with a through groove, namely the second axial groove 221, in the radial direction, and the top surface of the second cylinder is provided with a seventh step hole 222 eccentrically arranged axially downward, and the fourth step hole 2221 and the fifth step hole 2222 are included in sequence from top to bottom, and the input end of the flame detonator 26 is upwardly located in the fourth step hole 2221 and fixed by spot rivets; the second cylinder is provided with an eighth blind hole 223 eccentrically arranged in the axial direction, and the third positioning pin 25 is stepped, and the end with a larger diameter is pressed into the eighth blind hole 223 and fixed by spot rivets, while the end with a smaller diameter protrudes from the upper end surface of the second cylinder and is inserted into the preset arc groove on the rotor cover 21; the torsion spring 23 is in a pre-tightened state, one end of which is inserted into the second axial groove 221, and the other end is clamped in the recess formed by the preset protrusion of the rotor cover 21 through its spring head, and is close to the protrusion.

[0040] Furthermore, a third through hole 59 is eccentrically arranged axially downward at the bottom of the second step hole 532. The third through hole 59 and the second through hole 68 have the same aperture size. The second electromagnetic pin puller lead is led out from the second through hole 68 and the third through hole 59 in sequence to the electronic control system 18 in the second step hole 532.

[0041] Furthermore, a third axial groove 224 matching the shape of the safety piece 14 is axially upwardly provided at the bottom of the second cylinder of the horizontal rotor 22 near the outer edge of the seventh stepped hole 222, and an arc groove is respectively provided along the axis at the top surface and bottom edge of the second cylinder on the other side relative to the seventh stepped hole 222, including an upper arc groove 225 and a lower arc groove 226; a radial groove fitting the mushroom-shaped end of the safety pin of the electromagnetic pin puller is respectively provided radially in the upper arc groove 225 and the lower arc groove 226 on the side surface of the second cylinder, which are an upper radial groove 227 and a lower radial groove 228 respectively.

[0042] Furthermore, the first electromagnetic pin puller 7 and the second electromagnetic pin puller 8 are symmetrically arranged to constitute one of the redundant insurances of the horizontal rotor explosion-proof mechanism 2. When the fuze falls or vibrates, vibrates, or bumps, due to the reverse orientation, only one of the first electromagnetic pin puller 7 or the second electromagnetic pin puller 8 may release the insurance, but the other one still exists and still provides insurance for the horizontal rotor 22. Moreover, the movement of the electromagnetic pin puller safety pin is reversible and will reset after the impact disappears. Therefore, the electromagnetic insurance mechanism has an essential improvement in safety compared to the electromagnetic insurance mechanism with only a single electromagnetic pin puller, and can truly perform the insurance function independently.

[0043] Furthermore, the electronic control system 16 is composed of different electronic control modules. The electronic control modules for controlling the electromagnetic pin puller and the electronic control modules for controlling the electric powder pusher 10 are two different, unrelated and independent electronic modules to avoid common cause failure and common mode failure.

[0044] The main safety principle of the fuze of the present invention using an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance is as follows:

[0045] During the service process, the fuze is in the explosion-proof state, i.e., the factory-assembled state. The fuze is subjected to reliable impacts and vibrations, including accidental drops and transportation vibrations, which will not cause the fuze to accidentally release the insurance and accidentally explode. The first electromagnetic pin puller 7 and the second electromagnetic pin puller 8 extend their ends into the upper arc groove 225 and the lower arc groove 226 respectively to achieve redundant insurance for the explosion-proof horizontal rotor 22, ensuring that the horizontal rotor 22 is positioned in the explosion-proof state at ordinary times. If any of the insurance mechanisms fails, the insurance of the horizontal rotor 22 will not be released, i.e., the horizontal rotor 22 will not be accidentally turned straight, thereby ensuring the safety of the fuze in the case of reliable failure of the insurance mechanism. When the fuze falls or vibrates, one of the first electromagnetic pin puller 7 or the second electromagnetic pin puller 8 may release the insurance, but the other one still exists and implements insurance for the horizontal rotor 22, and its movement is reversible, and it will reset after the impact disappears. Therefore, the electromagnetic insurance mechanism can perform the insurance function more independently than the electromagnetic insurance mechanism with only a single electromagnetic pin puller. When the horizontal rotor 22 is not released, the axis of the electric ignition tube 11 in the third step hole 533 is offset from the axis of the flame detonator 26. Even if the electric ignition tube 11 ignites and explodes accidentally, the flame detonator 26 will not be detonated. When the horizontal rotor 22 is not released, the axis of the detonator 3 in the fifth step hole 66 is offset from the axis of the flame detonator 26. Even if the flame detonator 26 ignites and explodes accidentally, the detonator 3 will not be detonated. The fuse is explosion-proof and safe and enters a fire-proof state.

[0046] If the electric powder pusher 10 is released before the electromagnetic pin puller and acts on the safety piece 14, the horizontal rotor 22 will rotate circumferentially, and the end of the electromagnetic pin puller will be stuck on the corresponding radial groove edge. The horizontal rotor 22 can no longer rotate, and the fuze will then enter a fault safety state, that is, a failure safety state, ensuring the safety of the fuze during the service processing stage and the explosives disposal stage.

[0047] If the first electromagnetic pin puller 7 is not released due to a malfunction, after the electric powder pusher 10 acts on the safety piece 14, the horizontal rotor 22 rotates circumferentially, and the end of the first electromagnetic pin puller 7 that has not been released will be stuck on the edge of the upper radial groove 227, and the horizontal rotor 22 can no longer rotate. Thereafter, the fuze enters a fault safety state, that is, a failure safety state, ensuring the safety of the fuze during the service processing stage and the explosives disposal stage.

[0048] If the second electromagnetic pin puller 8 is not released due to a malfunction, after the electric powder pusher 10 acts on the safety piece 14, the horizontal rotor 22 rotates circumferentially, and the end of the second electromagnetic pin puller 8 that has not been released will be stuck on the edge of the lower radial groove 228, and the horizontal rotor 22 can no longer rotate. Thereafter, the fuze enters a fault safety state, that is, a failure safety state, ensuring the safety of the fuze during the service processing stage and the explosives disposal stage.

[0049] The main working process of the fuze of the present invention which uses an electric powder pusher and a symmetrical electromagnetic pin puller to realize redundant insurance is as follows:

[0050] After the projectile is launched, the electronic control system 18 controls the first electromagnetic pin puller 7 and the second electromagnetic pin puller 8 to release the safety at a specific position or time through an electrical signal by the ammunition or weapon system according to different information such as launch, ballistic flight, guidance or target. After the electromagnetic pin puller is released, the electronic control system 18 controls the electric gunpowder pusher 10 through an electrical signal to act on the safety piece 14, thereby smashing the safety piece 14. From then on, the safety of the horizontal rotor 22 is completely released and can rotate in a circumferential direction. Thereafter, the torsion spring 23 will rotate the horizontal rotor 22 to a certain angle under the action of its pre-torque, so that the axis of the electric ignition tube 11 coincides or basically coincides with the axis of the flame detonator 26, so that the explosion sequence is aligned, that is, the flame detonator 26 in the horizontal rotor 22 is aligned with the detonating tube 3, and the fuse is released and is in a ready-to-fire state.

[0051] After the projectile hits the target area, the electronic control system 18 uses electrical signals and the two inertial trigger switches 17 arranged crosswise in the fuze body 6. As long as one of them is closed, the electric ignition tube 11 ignites and explodes through the ignition control electronic module, and the flame detonator 26 behind it is ignited through the first through hole 54 and the pre-opened ignition hole on the rotor cover 21, and then the detonating tube 3 and the booster tube 4 are detonated, and the fuze completes the predetermined detonation process.

[0052] If the fuze fails to release the safety normally, or fails to achieve the above triggering effect after releasing the safety, after the projectile falls to the ground, the electronic control system 18 detonates the electric ignition tube 11 through an electrical signal, and the fuze completes self-destruction (provided that the safety has been released) or fire-free (provided that the safety has not been released). The fuze in the fire-free state can ensure the safety of explosive disposal of unexploded bombs.

Claims

1. A fuze using an electric powder pusher and a symmetrical electromagnetic pin puller to achieve redundant insurance, characterized in that: The invention comprises an upper cover (1), a horizontal rotor flameproof mechanism (2), a detonating tube (3), a detonating tube (4), an upper body (5), a main body (6), a first electromagnetic pin puller (7), a second electromagnetic pin puller (8), a screw plug (9), an electric gunpowder pusher (10), an electric ignition tube (11), a bottom cover (12), a safety element (14), an electronic control system (18), four first screws (15), two second screws (16), two inertia trigger switches (17) and two first positioning pins (13); the upper body (5) is fixed on the top surface of the main body (6); the bottom surface of the upper body (5) is a two-step stepped surface, which is a first step surface (51) and a second step surface (52) from bottom to top; the top surface of the main body (6) is also a two-step stepped surface, which is a first step surface (51) and a second step surface (52) from top to bottom; The third step surface (61) and the fourth step surface (62) are arranged below, the first step surface (51) matches with the fourth step surface (62), and the second step surface (52) matches with the third step surface (61), so as to achieve the shape matching of the main body (6) and the upper body (5); a first step hole (53) is opened downward along the axis of the top surface of the upper body (5), and includes a first step hole (531), a second step hole (532) and a third step hole (533) in sequence from top to bottom; a first blind hole (54) is eccentrically arranged upward along the axial direction from the second step surface (52); the aperture of the first blind hole (54) is larger than the aperture of the third step hole (533); the first blind hole (54) and the third step hole (533) are connected through a first through hole (55); A second stepped hole (56) connected to the second stepped hole (532) is eccentrically arranged on the stepped surface (52) in an axially upward direction, and the second stepped hole (56) is located on the left side of the first blind hole (54); a third stepped hole (57) connected to the first stepped surface (51) is eccentrically arranged from the bottom of the second stepped hole (532) in an axially downward direction, and the third stepped hole (57) is located on the right side of the first blind hole (54); a fourth stepped hole (63) is eccentrically arranged from the third stepped surface (61) in an axially downward direction; a second blind hole (64) connected to the fourth stepped hole (63) in a laterally eccentric manner is eccentrically arranged from the fourth stepped surface (62) in an axially downward direction; a third blind hole (65) is eccentrically arranged from the bottom of the body (6) in an axially upward direction; the bottom of the third blind hole (65) is eccentrically arranged along the A fifth stepped hole (66) connected to the fourth stepped hole (63) is arranged upwardly from the central axis of the body (6); a fourth blind hole (67) is arranged eccentrically upwardly from the bottom of the body (6); the fourth blind hole (67) and the third stepped surface (61) are connected via a second through hole (68); the second through hole (68) is located on the left side of the fourth stepped hole (63); a first radial groove (69) is arranged eccentrically upwardly from the bottom of the fourth blind hole (67) and laterally connected to the second through hole (68); a sixth stepped hole (610) connected to the fourth stepped hole (63) is arranged eccentrically upwardly from the bottom of the first radial groove (69); the sixth stepped hole (610) is located between the fifth stepped hole (66) and the second through hole (68);A fifth blind hole (611) is eccentrically arranged axially downward from the third step surface (61) of the body (6), and a sixth blind hole (612) communicating with the fifth blind hole (611) is eccentrically arranged radially from the side surface of the body (6); the upper cover (1) is arranged in the first step hole (531); the horizontal rotor flameproof mechanism (2) is arranged in the first blind hole (54) and the fourth step hole (63); the detonating tube (3) is arranged in the lower circular hole of the fifth step hole (66); the transmission tube (4) is arranged in the third blind hole (65); the first electromagnetic pull The pin puller (7) is arranged in the second step hole (56) and the fourth step hole (63); the second electromagnetic pin puller (8) is arranged in the sixth step hole (610) and the fourth step hole (63); the electric ignition tube (11) is arranged in the third step hole (533); the electric gunpowder pusher (10) is arranged in two circular holes in the lower half of the third step hole (57); the bottom cover (12) is arranged in the fourth blind hole (67) and fixed by two second screws (16); the safety piece (14) is arranged in the second blind hole (64); the two The inertial trigger switches (17) arranged in a cross shape are respectively arranged in the fifth blind hole (611) and the sixth blind hole (612); the electronic control system (18) is arranged in the second step hole (532); the two first positioning pins (13) and the four first screws (15) are respectively used for positioning and fixing between the upper body (5) and the main body (6); the flame detonator (26) of the horizontal rotor explosion-proof mechanism (2) is used to detonate the detonating tube (3), and is usually in a misaligned state, and can only be aligned with the detonating tube (3) below it after the fuse is released. and the electric ignition tube (11) above it; the safety element (14), the first electromagnetic pin puller (7) and the second electromagnetic pin puller (8) realize the redundant insurance of the horizontal rotor flameproof mechanism (2); the detonating tube (3) and the booster tube (4) are used to amplify the explosion output energy of the flame detonator (26); the inertial trigger switch (17) realizes the backup trigger function; the electronic control system (18) controls the electric ignition tube (11) according to the target information obtained by the ammunition or weapon system to realize the main firing, including the quasi-trigger firing of air explosion, near explosion or near trigger. ; 2. The fuze for realizing redundant safety by using an electric powder pusher and a symmetrical electromagnetic pin puller according to claim 1, characterized in that: The horizontal rotor explosion-proof mechanism (2) comprises a rotor cover (21), a horizontal rotor (22), a torsion spring (23), a second positioning pin (24), a third positioning pin (25) and a flame detonator (26); a seventh blind hole (58) which is not connected to any hole of the upper body (5) is eccentrically arranged on the second step surface (52) in the axially upward direction; the top end of the second positioning pin (24) is pressed into the seventh blind hole (58), and the lower end passes through the rotor cover (21) and extends into the preset blind hole of the body (6), so as to prevent the rotor cover (21) from being damaged. 21) rotates relative to the main body (6) to achieve circumferential positioning; the main body of the horizontal rotor (22) is arranged in the fourth stepped hole (63), the upper end of the rotating shaft of the horizontal rotor (22) extends upward from the rotor cover (21), the rotor cover (21) is located on the top surface of the main body of the horizontal rotor (22), and is located in the uppermost step hole of the fourth stepped hole (63); the horizontal rotor (22) is composed of a first cylinder, a second cylinder and a third cylinder connected in sequence from top to bottom, the second cylinder has the largest diameter, and the first cylinder is The upper end of the rotor shaft passes through the rotor cover (21), the second cylinder and the third cylinder are located in the two step holes at the middle and lower ends of the fourth step hole (63), a through groove, i.e., a second axial groove (221) is radially opened on the first cylinder, a seventh step hole (222) is eccentrically arranged axially downward on the top surface of the second cylinder, and the fourth step hole (2221) and the fifth step hole (2222) are included in sequence from top to bottom, and the input end of the flame detonator (26) is located upward in the fourth step hole (2221) and is fixed by spot rivets; the second An eighth blind hole (223) is eccentrically opened in the cylinder along the axial direction. The third positioning pin (25) is in a stepped shape. The end with a larger diameter is pressed into the eighth blind hole (223) and fixed by spot riveting, while the end with a smaller diameter protrudes from the upper end surface of the second cylinder and is inserted into a preset arc groove on the rotor cover (21). The torsion spring (23) is in a pre-tightened state, one end of which is inserted into the second axial groove (221), and the other end is clamped in a recess formed by a preset protrusion of the rotor cover (21) through its spring head, and is closely attached to the protrusion.

3. The fuze for realizing redundant safety by using electric powder pusher and symmetrical electromagnetic pin puller according to claim 2 is characterized in that: A third axial groove (224) in the shape of a matching safety piece (14) is axially arranged upward at the bottom of the second cylinder of the horizontal rotor (22) near the outer edge of the seventh stepped hole (222); an arc groove is arranged along the axis at the top surface and bottom edge of the second cylinder on the other side relative to the seventh stepped hole (222), including an upper arc groove (225) and a lower arc groove (226); a radial groove is arranged radially in the upper arc groove (225) and the lower arc groove (226) on the side surface of the second cylinder, respectively, to fit the mushroom-shaped end of the safety pin of the electromagnetic pin puller, namely an upper radial groove (227) and a lower radial groove (228).

4. The fuze for realizing redundant safety by using electric powder pusher and symmetrical electromagnetic pin puller according to claim 3 is characterized in that: The first electromagnetic pin puller (7) and the second electromagnetic pin puller (8) are symmetrically arranged to form a redundant insurance of the horizontal rotor explosion-proof mechanism (2). When the fuse falls or vibrates, oscillates or bumps, due to the reverse orientation, only one of the first electromagnetic pin puller (7) or the second electromagnetic pin puller (8) may release the insurance, but the other one still exists and still implements insurance for the horizontal rotor (22). Moreover, the movement of the electromagnetic pin puller safety pin is reversible and will reset after the impact disappears. Therefore, the electromagnetic insurance mechanism has an essential improvement in safety compared to the electromagnetic insurance mechanism with only a single electromagnetic pin puller and can truly independently perform the insurance function.

5. The fuze for realizing redundant safety by using electric powder pusher and symmetrical electromagnetic pin puller according to claim 4 is characterized in that: The electronic control system (16) is composed of different electronic control modules. The electronic control modules for controlling the electromagnetic pin puller and the electronic control modules for controlling the electric powder pusher (10) are two different, unrelated and independent electronic modules to avoid common cause failure and common mode failure.

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