CN117570793A - Electromechanical trigger fuze for medium and large caliber line bore shell head for target base arming - Google Patents
Electromechanical trigger fuze for medium and large caliber line bore shell head for target base arming Download PDFInfo
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- CN117570793A CN117570793A CN202311785781.5A CN202311785781A CN117570793A CN 117570793 A CN117570793 A CN 117570793A CN 202311785781 A CN202311785781 A CN 202311785781A CN 117570793 A CN117570793 A CN 117570793A
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- 230000007246 mechanism Effects 0.000 claims abstract description 195
- 238000010304 firing Methods 0.000 claims abstract description 82
- 230000009471 action Effects 0.000 claims abstract description 48
- 238000004880 explosion Methods 0.000 claims abstract description 43
- 230000003578 releasing effect Effects 0.000 claims abstract description 42
- 230000035515 penetration Effects 0.000 claims description 83
- 238000007789 sealing Methods 0.000 claims description 24
- 238000010008 shearing Methods 0.000 claims description 24
- 230000000903 blocking effect Effects 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 16
- 230000003247 decreasing effect Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 8
- 239000002360 explosive Substances 0.000 claims description 7
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 4
- 229910000954 Medium-carbon steel Inorganic materials 0.000 claims description 4
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C11/00—Electric fuzes
- F42C11/001—Electric circuits for fuzes characterised by the ammunition class or type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C11/00—Electric fuzes
- F42C11/06—Electric fuzes with time delay by electric circuitry
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
- F42C15/22—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using centrifugal force
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Abstract
The invention discloses an electromechanical trigger fuse of a medium-and-large-caliber line bore shell head for releasing safety of a target base. The fuze has three action modes of instantaneous firing, delay and inertia, and is provided with two sets of firing mechanisms which are mutually independent, namely the impact mechanism and the inertia mechanism, so that the fuze has high reliability and can be suitable for various medium-and-large-caliber line-bore artillery grenades and fuming bullets; meanwhile, the safety is good, and the trajectory explosion can be effectively prevented through the centrifugal ball design of the target base releasing safety mechanism, the safety and explosion-proof releasing mechanism and the inertia ignition mechanism.
Description
Technical Field
The invention belongs to the technical field of grenades fuze of a line bore artillery, and particularly relates to an electromechanical trigger fuze of a large-caliber line bore artillery grenade and a smoke bullet in target base releasing safety for preventing ballistic explosion.
Background
With the implementation of the standard of the safety design rule of the fuze, the fuze is generally designed with an explosion-proof mechanism, a redundant safety mechanism and a delayed explosion-proof releasing mechanism, so that handling explosion and rifling accidents are reduced to a great extent, but blast and ballistic explosion accidents still occur when the warhead is matched to trigger the medium-large caliber rotary shell of the fuze. Some ballistic explosion occurs at the initial stage of the trajectory, i.e. immediately after the fuse is released, some at a distance of 500m to 1000m from the muzzle, and some at the arc falling stage of the trajectory.
For the existing mechanical trigger fuze of a medium-large caliber line bore artillery grenade warhead provided with an inertia trigger mechanism, such as M739 series mechanical trigger fuze of army, ballistic explosion accidents almost occur, the root cause of the ballistic explosion is that the overload of centrifugal property is generated by the movement of a projectile around a centroid when the projectile flies outside, and the overload and the forward overload direction of the projectile hit a target or a target area are the same for the warhead fuze, so that the overload is difficult to distinguish, and therefore, when the overload accidentally reaches the ignition overload threshold value of the inertia trigger mechanism, the ballistic explosion can occur.
For this failure, the army solution is to raise the inertial trigger mechanism firing overload threshold to avoid the range of centrifugal property overload around the centroid, but this does not solve the problem thoroughly in principle. Ballistic frying is unavoidable once the centrifugal overload overlaps or approaches the inertial trigger mechanism firing overload threshold. Along with the initial speed and the rotating speed of the projectile are higher and higher, along with the length of the projectile is longer and longer, the overload of centrifugal property generated by the movement of the projectile around the center is larger and larger, and the probability of bullet fuze ballistic explosion adopting an inertia trigger mechanism is larger and larger, so that the explosion is difficult to stop. This affects not only the reliability of the action but also the morale and possibly the safety of use.
Therefore, the fuze is required to have ballistic safety against ballistic explosion problems in addition to meeting the traditional safety requirements, namely service handling safety, loading safety, launching safety and muzzle safety, and the inertial triggering structure and the centrifugal slider type remote arming mechanism design of the mechanical triggering fuze for the medium and large caliber rotary cannonball warhead, which are described in Chinese patent 202111397774.9, structurally and theoretically avoid ballistic explosion.
Disclosure of Invention
The invention aims to provide an electromechanical trigger fuse of a medium-and-large-caliber line bore shell head for releasing safety of a target base, and the reliability and ballistic safety of the electromechanical trigger fuse are ensured.
The technical solution for realizing the purpose of the invention is as follows: an electromechanical trigger fuse of a medium-and-large-caliber line bore shell head for target base arming comprises an penetration body, a collision firing mechanism, an inertial firing mechanism, a delay arming mechanism, a rainproof mechanism, an arming time setting mechanism, an acting time setting mechanism, a pressing sleeve, an upper sealing ring, a plastic sleeve, a rotation stopping pin, a lower sealing ring, a motor seat, a safety and explosion-proof releasing mechanism, a connecting body, a booster tube, six fastening screws and three linear generators; the rainproof mechanism, the impact ignition mechanism, the arming time setting mechanism, the acting time setting mechanism, the inertia ignition mechanism, the safety and explosion-proof releasing mechanism and the detonating tube are arranged along the axis of the fuze, namely the axis of the penetration body, from top to bottom in sequence; the pressing sleeve and the plastic sleeve are sleeved on the penetration body from top to bottom, the upper surface and the lower surface of the pressing sleeve and the plastic sleeve are provided with step surfaces, and radial limit is realized through the step surfaces; the upper sealing ring and the lower sealing ring are respectively positioned in annular grooves of the upper step surface and the lower step surface of the plastic sleeve and are used for sealing the plastic sleeve structure; the top surface of the penetration body is provided with a first stepped hole downwards along the axis of the penetration body, the penetration body sequentially comprises a first stepped hole and a second stepped hole, and the second stepped hole is a blind hole; a first through hole parallel to the second step hole is eccentrically arranged downwards from the bottom surface of the second step hole of the penetration body; the outer side wall of the penetration body is provided with a second stepped hole along the radial direction, the penetration body comprises a third stepped hole, a fourth stepped hole, a fifth stepped hole and a sixth stepped hole, the diameters of the third stepped hole, the fourth stepped hole, the fifth stepped hole and the sixth stepped hole are gradually decreased from outside to inside, the axis of the second stepped hole is orthogonal to and coplanar with the axis of the first stepped hole, and the axis of the second stepped hole is perpendicular to but not coplanar with the axis of the first through hole; the penetration body is uniformly distributed with a first group of six threaded holes along the radial direction orthogonal to the second step holes, six fastening screws are respectively arranged in the first group of six threaded holes, and the tail part (the rod body) of the penetration body is inwards screwed into the safety release time setting mechanism and is used for preventing relative rotation between the safety release time setting mechanism and the penetration body; the motor seat is positioned at the lower part of the penetration body, and a third stepped hole is formed in the top surface of the motor seat downwards along the axis of the motor seat, and comprises a seventh-order hole, an eighth-order hole, a ninth-order hole and a tenth-order hole with diameters decreasing from top to bottom in sequence; the top surface of the motor seat is provided with a fourth stepped hole and a second threaded hole which are coaxial in a downward eccentric way along the axis of the motor seat, wherein the fourth stepped hole comprises an eleventh hole, a twelfth hole, a thirteenth hole, a fourteenth hole and a fifteenth hole; the second threaded hole is positioned on the bottom surface of the motor seat and is close to the fifteenth-order hole; the outer side wall of the motor base is provided with a first blind hole along the radial direction of the motor base, and the axis of the first blind hole is respectively in coplanarity and orthogonalization with the axis of the third stepped hole and the axis of the fourth stepped hole and is communicated with the eighth stepped hole; the outer side wall of the motor base is provided with a first shearing pin hole above the first blind hole along the radial direction of the motor base, the axis of the first shearing pin hole is parallel and coplanar with the axis of the first blind hole and is communicated with a fourteenth-order hole, and the axis of the first shearing pin hole is orthogonal and coplanar with the axis of the fourteenth-order hole; the motor seat is provided with a first blind hole which is coaxial with the first through hole of the penetration body, and the diameter of the first blind hole is the same as that of the first through hole of the penetration body; the motor base is provided with three groups of same parallel stepped holes in a downward eccentric manner along the axis of the motor base, namely a fifth stepped hole, a sixth stepped hole and a seventh stepped hole, wherein the fifth stepped hole is arranged on the outer side of the middle of the sixth stepped hole and the seventh stepped hole, the three stepped holes are all six-step stepped holes, the stepped holes are a sixteenth stepped hole, a seventeenth stepped hole, an eighteenth stepped hole, a nineteenth stepped hole, a twentieth stepped hole and a twenty first stepped hole which are coaxial in sequence from top to bottom, the diameters of the sixteenth stepped hole to the eighteenth stepped hole are decreased, and the diameters of the eighteenth stepped hole to the twenty first stepped hole are increased; the anti-rotation pin is arranged in the first through hole of the penetration body, the bottom end of the anti-rotation pin extends to the bottom of the second blind hole of the motor base and is used for preventing relative rotation between the motor base and the penetration body; the safety relief time setting mechanism is arranged in an axisymmetric structure along the axis of the penetration body and is arranged in a second stepped hole of the penetration body, the delay safety relief mechanism is arranged between the rainproof mechanism and the safety and explosion relief mechanism, the connecting body is arranged at the outer sides of the safety and explosion relief mechanism and the explosion transfer tube and is used for connecting or structurally restraining the penetration body, the motor base, the safety and explosion relief mechanism and the explosion transfer tube, the outer wall surface of the top end of the safety and explosion relief mechanism is connected with the inner wall surface of the penetration body through threads, the inner wall surface of the bottom end of the safety and explosion relief mechanism is connected with the outer wall surface of the explosion transfer tube through threads, a hollow first flange is arranged in the middle of the inner wall of the connecting body, the first flange is arranged between the safety and explosion relief mechanism and the explosion transfer tube and is used for providing axial positioning and structural restraint for the safety and explosion relief mechanism, the top end of the explosion transfer tube is attached together with the safety and explosion relief mechanism, and the bottom end of the safety and explosion relief mechanism is used as a fuse output end for detonating explosive in a matched explosive pill; the three groups of same linear generators are respectively positioned in the fifth stepped hole, the sixth stepped hole and the seventh stepped hole of the motor base and fixedly connected with the motor base.
Compared with the prior art, the invention has the remarkable advantages that:
(1) The reliability is higher: compared with the existing product, the anti-explosion detonator has the two sets of ignition mechanisms of the impact ignition mechanism and the ignition mechanism, and the two sets of ignition mechanisms are mutually independent and can both trigger the detonator, so that the redundant design of the ignition effect of the detonator is realized, and the blind fire rate is effectively reduced.
(2) The safety is better: through the centrifugal ball design of the delay releasing safety mechanism, the safety and explosion-proof releasing mechanism and the inertia ignition mechanism, ballistic explosion can be effectively avoided in terms of structure and principle, and the related requirements of GJB373B-2019 'fuze safety design criterion' standard are comprehensively met.
(3) Simple structure and low cost.
The invention is described in further detail below with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic structural view of an electromechanical trigger fuse of a medium-and-large-caliber line bore shell head along an axial section of a target base arming according to the invention.
Fig. 2 is a partial left cross-sectional view of an electromechanical trigger fuse of a medium and large caliber line bore projectile head for target base arming of the present invention, and is presented primarily as a construction of an on-time setting mechanism.
Fig. 3 is a cross-sectional view of a section A-A of an electromechanical trigger fuse of a medium and large bore line bore projectile head of the invention, shown in a predominantly linear generator radial position.
Fig. 4 is a partial cross-sectional view of a B-B section of an electromechanical trigger fuse of a medium and large caliber line bore projectile head for target base arming of the present invention, showing the main structure of a primarily linear generator.
Fig. 5 is a 2:1 partial enlarged view of an electromechanical trigger fuse head for a medium and large caliber breech projectile head for target base arming of the present invention, showing the primary structure of the primary rain protection mechanism.
Fig. 6 is a cross-sectional view of a part of the setting mechanism of the present invention in a mode of electromechanical triggering of the fuze delay action of a medium and large caliber line bore projectile head for target base arming.
Fig. 7 is a cross-sectional view of a part of the mechanism for setting up a target base arming medium and large bore shell head in an electromechanical trigger fuse inertia mode of the invention.
Fig. 8 is a cross-sectional view of a portion of the local immediate setting mechanism of the present invention in a target-based arming medium and large bore shell head electromechanical trigger fuse transient mode.
Fig. 9 is a partial view of one side of the exposed end of the electromechanical trigger fuse setting lever of a medium and large caliber line bore projectile head for target base arming in accordance with the present invention.
In the figure, 1 is an penetration body, 2 is a collision ignition mechanism, 3 is an inertial ignition mechanism, 4 is a delay relief mechanism, 5 is a rain protection mechanism, 6 is a relief time setting mechanism, 7 is an action time setting mechanism, 8 is a pressing sleeve, 9 is a fastening screw, 10 is an upper sealing ring, 11 is a plastic sleeve, 12 is a rotation stop pin, 13 is a lower sealing ring, 14 is a motor base, 15 is a safety and relief explosion protection mechanism, 16 is a connecting body, 17 is a detonating tube and 18 is a linear generator; 21 is a power-receiving rod part, 22 is a switch seat, 23 is a circuit box, 24 is an electric ignition tube, 25 is an electric ignition tube seat, 26 is a circuit board, and 27 is a supporting plate; 31 is the first needle cover, 32 is the first needle spring, 33 is the first firing pin, 34 is the safety ball, 35 is the second firing pin, 41 is the induction setting electronic component, 42 is the adapter plate, 43 is the electric pusher, 44 is the shear pin, 45 is the stop pin, 46 is the firestop lever, 47 is the screw plug, 51 is the moisture proof sheet, 52 is the rain proof cap, 53 is the rain proof sheet, 61 is the upper setting ring component, 62 is the middle setting ring component, 63 is the lower setting ring component, 64 is the electronic component, 71 is the setting rod component, 72 is the needle/flame delay detonator, 73 is the needle burst detonator, 171 is the reinforcing cap, 172 is the booster, 173 is the booster shell, 174 is the medicine cover, 181 is the stop sheet, 182 is the strike block, 183 is the motor spring, 184 is the magnetic recoil generator, 185 is the safety sheet, 186 is the helicoid; 211 is a power receiving piece, 212 is a power receiving rod, 213 is an insulating sleeve, 214 is a power receiving plate, 711 is a setting rod, and 712 is a sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by one of ordinary skill in the art without creative efforts, are within the scope of the present invention based on the embodiments of the present invention.
The description as it relates to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; the "connection" may be mechanical or electrical. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 5, the electromechanical trigger fuse of the medium and large caliber line bore shell head for target base arming according to the invention comprises an penetration body 1, a collision firing mechanism 2, an inertial firing mechanism 3, a delay arming mechanism 4, a rain-proof mechanism 5, an arming time setting mechanism 6, an acting time setting mechanism 7, a pressing sleeve 8, an upper sealing ring 10, a plastic sleeve 11, a rotation stop pin 12, a lower sealing ring 13, a motor base 14, a safety and explosion-proof mechanism 15, a connecting body 16, an explosion-proof tube 17, six fastening screws 9 and three linear generators 18; the rain-proof mechanism 5, the collision firing mechanism 2, the safety relief time setting mechanism 6, the action time setting mechanism 7, the inertia firing mechanism 3, the safety and release explosion-proof mechanism 15 and the explosion-transfer pipe 17 are arranged along the axis of the fuse, namely the axis of the penetration body 1, from top to bottom in sequence, the pressing sleeve 8 and the plastic sleeve 11 are sleeved on the penetration body 1 from top to bottom, the upper surface and the lower surface of the pressing sleeve are provided with step surfaces, radial limiting is realized through the step surfaces, the pressing sleeve 8 and the plastic sleeve 11 are used for ensuring the compactness and the integrity of the fuse structure, and the upper sealing ring 10 and the lower sealing ring 13 are respectively positioned in annular grooves of the upper step surface and the lower step surface of the plastic sleeve 11 and are used for sealing the structure of the plastic sleeve 11; the top surface of the penetration body 1 is provided with a first stepped hole downwards along the axis of the penetration body, the penetration body sequentially comprises a first stepped hole and a second stepped hole, and the second stepped hole is a blind hole; a first through hole parallel to the second step hole is eccentrically arranged downwards from the bottom surface of the second step hole of the penetration body 1; the outer side wall of the penetration body 1 is provided with a second stepped hole along the radial direction, the penetration body comprises a third stepped hole, a fourth stepped hole, a fifth stepped hole and a sixth stepped hole, the diameters of the third stepped hole, the fourth stepped hole, the fifth stepped hole and the sixth stepped hole are gradually decreased from outside to inside, the axis of the second stepped hole is orthogonal to and coplanar with the axis of the first stepped hole, and the axis of the second stepped hole is perpendicular to but not coplanar with the axis of the first through hole; the penetration body 1 is uniformly provided with a first group of six threaded holes along the radial direction orthogonal to the second step holes, six fastening screws 9 are respectively arranged in the first group of six threaded holes, the tail part (the rod body) of the penetration body is inwards screwed into the safety release time setting mechanism 6, and the penetration body is used for preventing relative rotation between the safety release time setting mechanism 6 and the penetration body 1; the motor base 14 is positioned at the lower part of the penetration body 1, and a third stepped hole is formed in the top surface of the motor base 14 downwards along the axis of the motor base, and comprises a seventh-order hole, an eighth-order hole, a ninth-order hole and a tenth-order hole with diameters decreasing from top to bottom in sequence; the top surface of the motor base 14 is provided with a coaxial fourth stepped hole and a second threaded hole in a downward eccentric way along the axis, wherein the fourth stepped hole comprises an eleventh hole, a twelfth hole, a thirteenth hole, a fourteenth hole and a fifteenth hole; the second threaded hole is positioned on the bottom surface of the motor seat 14 and is abutted against the fifteenth-order hole; the outer side wall of the motor base 14 is provided with a first blind hole along the radial direction, and the axis of the first blind hole is respectively in coplanarity and orthogonalization with the axis of the third stepped hole and the axis of the fourth stepped hole and is communicated with the eighth stepped hole; the outer side wall of the motor base 14 is provided with a first shearing pin hole above the first blind hole along the radial direction of the motor base, the axis of the first shearing pin hole is parallel and coplanar with the axis of the first blind hole and is communicated with a fourteenth-order hole, and the axis of the first shearing pin hole is orthogonal and coplanar with the axis of the fourteenth-order hole; a second blind hole with an eccentric axis and a parallel axis is formed downwards from the top surface of the motor base 14, the second blind hole is coaxially communicated with the first through hole of the penetration body 1, the diameters of the second blind hole and the first through hole are the same, and the axes of the second blind hole are respectively parallel and coplanar with the axes of the third stepped hole and the fourth stepped hole; the motor base 14 is provided with three groups of identical parallel stepped holes in a downward eccentric manner along the axis of the motor base, namely a fifth stepped hole, a sixth stepped hole and a seventh stepped hole, wherein the fifth stepped hole is arranged on the outer side of the middle of the sixth stepped hole and the seventh stepped hole, the three stepped holes are all six stepped holes, the stepped holes are a sixteenth stepped hole, a seventeenth stepped hole, an eighteenth stepped hole, a nineteenth stepped hole, a twentieth stepped hole and a twenty first stepped hole which are coaxial in sequence from top to bottom, the diameters of the sixteenth stepped hole to the eighteenth stepped hole are decreased, and the diameters of the eighteenth stepped hole to the twenty first stepped hole are increased; the stop pin 12 is arranged in a first through hole of the penetration body 1, and the bottom end of the stop pin extends to the bottom of a second blind hole of the motor base 14, so as to prevent relative rotation between the motor base 14 and the penetration body 1; the releasing safety time setting mechanism 6 is located between the rainproof mechanism 5 and the pressing sleeve 8 and is distributed in an axisymmetric structure along the axis of the penetration body 1, the acting time setting mechanism 7 is arranged in a second stepped hole of the penetration body 1, the safety and releasing explosion-proof mechanism 15 refers to the safety and releasing safety mechanism in the Chinese patent application ZL202120539716.4, the safety and releasing explosion-proof mechanism 15 internally comprises an explosion-proof mechanism, a delayed releasing explosion-proof mechanism and a redundant safety mechanism, the safety and releasing explosion-proof mechanism has explosion-proof, delayed releasing explosion-proof and self-destruction functions, the safety and releasing mechanism is in an explosion-proof state within the safe distance of a projectile, the delayed releasing explosion-proof mechanism 4 is located between the rainproof mechanism 5 and the safety and releasing explosion-proof mechanism 15, the connecting body 16 is located outside the safety and releasing explosion-proof mechanism 15 and the transfer tube 17 and is used for connecting or structurally restraining the penetration body 1, the motor base 14, the safety and releasing explosion-proof mechanism 15 and the transfer tube 17, the top end outer wall surface of the safety and releasing explosion-proof mechanism is connected with the inner wall surface of the penetration body 1 through threads, the bottom end inner wall surface of the safety and the transfer tube 17 through threads, the hollow first explosion-proof mechanism and the first explosion-proof mechanism is arranged in the safe distance of the projectile, the first explosion-proof mechanism 4 is located between the safety and the release explosion-proof mechanism 15 and the transfer tube 17, and the safety and the release explosion-proof mechanism is provided as an explosive-releasing and the explosion-proof mechanism is located in the axial and the release-proof mechanism, and is provided in the transfer tube 17; three identical linear generators 18 are respectively located in the fifth stepped hole, the sixth stepped hole and the seventh stepped hole of the motor base 14, and are fixedly connected with the motor base 14.
The striking ignition mechanism 2 mainly comprises a power receiving rod part 21, a switch seat 22, a circuit box 23, an electric ignition tube 24, an electric ignition tube seat 25, a circuit board 26 and a supporting plate 27; the switch seat 22 is positioned below the rainproof mechanism 5, and an eighth stepped hole is formed in the top surface of the switch seat 22 along the axis of the switch seat downwards, wherein the eighth stepped hole comprises a twenty-second order hole, a twenty-third order hole, a twenty-fourth order hole, a twenty-fifth order hole, a twenty-sixth order hole and a twenty-seventh order hole, the diameters of the twenty-second order hole to the twenty-fifth order hole are decreased progressively, and the diameters of the twenty-fifth order hole to the twenty-seventh order hole are increased progressively; a ninth stepped hole is formed in the bottom surface of the switch seat 22 along the axis upwards, and comprises a twenty-eighth stepped hole and a twenty-ninth stepped hole; the switch seat 22 is coaxially provided with a third threaded hole between the twenty-seventh order hole and the twenty-ninth order hole; the diameters of the twenty-seventh order hole, the third threaded hole, the twenty-ninth order hole and the twenty-eighth order hole from top to bottom are sequentially increased; the circuit box 23 is located above the penetration body 1 and is used for connecting the electric connection plate 214 and the circuit board 26, the lower surface of the circuit box is clung to the upper surface of the penetration body 1, the top end of the circuit box 23 is arranged in the third threaded hole of the switch seat 22 and is connected with the switch seat 22 through threads, and the bottom end of the circuit box 23 is located in the first stepped hole of the penetration body 1; the circuit box 23 is provided with a thirty-first order hole from top to bottom along the axis thereof; the circuit box 23 is provided with a tenth stepped hole from bottom to top along the axis thereof, and comprises a thirty-first hole, a thirty-second hole, a thirty-third hole and a thirty-fourth hole with diameters decreasing in sequence; the supporting plate 27 is arranged at the bottom of the thirty-first-stage hole of the circuit box 23, the circuit board 26 is coaxially arranged on the supporting plate 27 and is mainly used for detonating the electric ignition tube 24, the upper surface of the electric ignition tube 24 is clung to the bottom of the thirty-first-stage hole, the diameters of the circuit board 26 and the supporting plate 27 are the same as those of the thirty-second-stage hole, the electric ignition tube seat 25 is coaxially arranged in the thirty-first-stage hole and the thirty-second-stage hole of the circuit box 23, the lower surface of the electric ignition tube seat 25 is flush with the opening of the thirty-first-stage hole, the middle part of the outer side wall of the electric ignition tube seat 25 is provided with a second flange, the second flange is supported at the opening of the central hole of the circuit board 26 and is used for axially positioning the electric ignition tube seat 25, the electric ignition tube seat 25 is provided with an eleventh stepped hole along the axis, the output end of the electric ignition tube 24 is downwards stuck in the thirty-fifth-stage hole of the electric ignition tube seat 25; the electric pole component 21 comprises an electric pole 211, an electric pole 212, an insulating sleeve 213 and an electric plate 214, wherein the electric pole 211 is arranged in a twenty-second order hole of the switch seat 22, the lower surface of the electric pole 211 is abutted against the bottom of the twenty-second order hole, the electric plate 214 is positioned at the opening of the circuit box 23, the insulating sleeve 213 is arranged in a twenty-fifth order hole and a twenty-sixth order hole of the switch seat 22, the lower surfaces of the electric poles are abutted against the electric plate 214, two electric poles 212 are spaced at a certain distance, the lower half parts of the electric poles are arranged in the insulating sleeve 213 and the electric plate 214 and symmetrically and parallelly arranged along the axis of the electric plate 214, the upper ends of the electric poles extend out of the insulating sleeve 213 and the electric plate 214 and extend into a twenty-third order hole of the switch seat 22, and the insulating sleeve 213 is made of insulating materials, so that the two electric poles 212 are in an insulating state.
The inertial ignition mechanism 3 mainly comprises a first firing pin sleeve 31, a first firing pin spring 32, a first firing pin 33, a safety ball 34 and a second firing pin 35, wherein the length of the first firing pin 33 is longer than that of the second firing pin 35; the first needle cover 31 is arranged in a seventh-order hole of the motor base 14, the lower surface of the first needle cover is propped against the bottom of the seventh-order hole, and a seventeenth-order hole, a thirty-eighth-order hole, a conical hole and a thirty-ninth-order hole with progressively increased diameters are respectively formed in the first needle cover 31 from top to bottom along the axis of the first needle cover; the outer contour of the first firing pin 33 is composed of a first firing pin tip, a first cylinder, a second cylinder and a third cylinder which are coaxially arranged from top to bottom in sequence, wherein the first firing pin tip, the first cylinder and the upper half section of the second cylinder are arranged in a thirty-eighth order hole of the first firing pin sleeve 31, the lower half section of the second cylinder extends to a conical hole and a thirty-ninth order hole of the first firing pin sleeve 31, the third cylinder is arranged in the eighth order hole of the motor base 14, the first firing pin 33 is made of aluminum alloy, a central fire transmission hole with a blind hole structure is formed on the first firing pin 33, the thickness of the bottom of the blind hole adjacent to the tip part is between 0.2 and 0.9mm, the central fire transmission hole is used for outputting flames of the electric ignition tube 24, the acupuncture/flame delay 72 and the acupuncture detonator 73, 2 to 6 radial third blind holes are uniformly formed in the circumferential direction of the first firing pin 33, the third cylinder is radially provided with a second through hole, and the second through hole is communicated with the first blind hole under assembly orientation, and the first firing pin 33 is used for the inertia detonator 72 above the first firing pin 33; one end of the first striker spring 32 in a pre-pressing state is sleeved on a first cylindrical surface of the first striker 33, and is abutted against an annular table top at the juncture of the first cylinder and the second cylinder, and the other end of the first striker spring is abutted against an annular step surface of a third seventeenth step hole and a thirty eighth step Kong Jiaojie which are bottoms of third eighteenth step holes, so as to ensure the first striker 33; 2 to 6 safety balls 34 are arranged in 2 to 6 third blind holes of the first firing pin 33, and 2 to 6 safety balls 34 are used for carrying out ballistic protection on the first firing pin 33; the second firing pin 35 is mainly arranged in a tenth-order hole of the motor base 14, a third flange is arranged at the upper end of the outer side wall of the second firing pin 35, the third flange is arranged in a ninth-order hole of the motor base 14, the upper surface of the third flange is close to the hole bottom of the central fire transmission hole, namely an eighth-order hole, and the third flange is fixed on the motor base 14 in a spot riveting mode and is used for realizing the axial positioning of the second firing pin 35 and realizing the safety of the second firing pin 35; the tip of the second firing pin 35 is close to the bottom surface of the motor base 14, namely, the upper surface of the safety and explosion-proof release mechanism 15.
The delay releasing safety mechanism 4 mainly comprises an induction setting electronic component 41, an adapter plate 42, an electric pin pusher 43, a shearing pin 44, a blocking pin 45, a fire retarding rod 46 and a plug 47; the induction setting electronic component 41 is arranged in a thirty-second order hole of the circuit box 23, the adapter plate 42 is obliquely arranged on the inner side of the plastic sleeve 11 and between the safety relief time setting mechanism 6 and the motor base 14, the induction setting electronic component is used for realizing the electric connection between the safety relief time setting mechanism 6 and the electric pin pusher 43 arranged in the motor base 14, the inner end of the fire stopping rod 46 is arranged in a third through hole of the first firing pin 33 and used for blocking a central fire transmission hole on the first firing pin 33, the outer end of the fire stopping rod 46 is arranged in a first blind hole of the motor base 14, the outer end face of the fire stopping rod is abutted against the inner wall of the fourteenth order hole of the motor base 14, the weight reducing central hole is arranged at the inner end of the fire stopping rod 46 to ensure that the center of mass of the fire stopping rod 46 is constantly positioned in a fuze axis and the left side of a shot rotating axis, the stop pin 45 with the diameter larger than that of the fire stopping rod 46 is positioned in the fourteenth order hole of the motor base 14, the inner side outer wall surface of the fire stopping rod 46 is abutted against the outer end face of the fire stopping rod 46, the upper surface and the lower surface of the baffle pin 45 are respectively provided with a fourth blind hole and a fifth blind hole downwards and upwards along the axis thereof for lightening the quality of the baffle pin 45, the outer side wall of the baffle pin 45 is provided with a second shearing pin hole along the radial direction, the second shearing pin hole is coaxially communicated with the first shearing pin hole along the same diameter in the assembled state, the baffle pin 44 is arranged in the baffle pin 45, the other side below the axis of the second shearing pin hole is provided with a rectangular groove along the radial direction, the lower surface of the rectangular groove is higher than the lower edge of the outer end face of the fire stopping rod 46, the width of the rectangular groove is larger than the diameter of the outer end of the fire stopping rod 46, after the delay releasing action of the pre-set electronic timing is finished, the electric pusher 43 fires to push the baffle pin 45 to shear the shear pin 44 and continuously move downwards, the constraint on the fire stopping rod 46 is released, the outer end of the fire stopping rod 46 is removed under the action of centrifugal inertia force, the obstruction between the central fire transmitting hole and the second firing pin 35 is eliminated, so that the second striker 35 can shear the third flange under the explosive action of the explosive element (the acupuncture/flame delay detonator 72 or the acupuncture instant detonator 73) in the action time setting mechanism 7 and pierce the acupuncture detonator already in the aligned or to-be-generated position in the safety and arming mechanism to complete the predetermined firing action, the shearing pin 44 has a larger diameter, the inner end of which is disposed in the second shearing pin hole of the blocking pin 45, the outer end of which is disposed in the first shearing pin hole of the motor base 14 to limit the axial movement of the blocking pin 45, the shearing pin 44 is not sheared by the credible impact action during service treatment and loading and the impact action caused by the recoil overload during firing, the electric pusher 43 is disposed mainly in the tenth and thirteenth step holes of the motor base 14, the lower surface of which abuts against the fourth blind hole bottom of the blocking pin 45 to push the shearing pin 44 and move the blocking pin 45 downward, the lower end of the screw plug 47 is disposed in the second threaded hole of the motor base 14 and screwed onto the motor base 14 to seal the lower surface of the high-pressure gas plug 47 of the electric pusher 43.
The rainproof mechanism 5 mainly comprises a moistureproof sheet 51, a rainproof cap 52 and a rainproof sheet 53; the moistureproof sheet 51 is arranged in a twenty third-order hole of the switch seat 22 and is fixed and sealed by a closing-in structure; the rain hat 52 and the rain proof piece 53 are coaxially arranged downwards along the axis of the moisture proof piece 51 in sequence, the rain hat 52 and the rain proof piece 53 are both positioned in the twenty-second-order holes, the twelfth stepped holes are downwards formed in the rain hat 52 along the axis of the rain hat 52, the top-down structure comprises a forty-order hole and a forty-first-order hole with gradually increased diameters, and the four third through holes uniformly distributed along the circumferential direction are eccentrically formed in the rain proof piece 53 along the axis of the rain hat.
The rain-proof cap 52 is made of medium carbon steel or low carbon steel, and the top thickness of the rain-proof cap 52 is 0.5-0.8 mm; the diameter of the forty-th order hole is 3-4.5 mm; the rain-proof piece 53 is made of medium carbon steel or low carbon steel, and the thickness of the rain-proof piece 53 is not less than 0.5mm; the diameter of the third through hole is 3-4.5 mm; the wall thickness of the hole edges of two adjacent third through holes is 2-4 mm.
The arming time setting mechanism 6 mainly comprises an upper setting ring assembly 61, a middle setting ring assembly 62, a lower setting ring assembly 63 and an electronic assembly 64; the upper fixed ring assembly 61, the middle fixed ring assembly 62 and the lower fixed ring assembly 63 are sequentially arranged below the switch seat 22, above the supporting plate 27 and outside the circuit box 23 from top to bottom along the axis of the penetration body 1, annular step surfaces are respectively arranged on the upper surface and the lower surface of the upper fixed ring assembly 61, the middle fixed ring assembly 62 and the lower fixed ring assembly 63, radial limit and axial limit are realized through the mutual matching of the annular step surfaces, and the electronic assembly 64 is arranged in a thirty-second hole, a thirty-third hole and a thirty-fourth hole of the circuit box 23; by rotation, the upper setting ring assembly 61, the middle setting ring assembly 621 and the lower setting ring assembly 63 achieve time ten, unit and ten digit setting (in seconds) respectively, with digits engraved on their outer surfaces.
The action time setting mechanism 7 comprises a setting rod part 71, a needling/flame delay detonator 72 and a needling instant detonator 73; the setting rod part 71 comprises a setting rod 711 and a sealing ring 712, and is positioned in the second stepped hole of the penetration body 1; the setting rod 711 is composed of a fourth cylinder, a fifth cylinder and a sixth cylinder which are sequentially arranged along the axial direction, a through straight-line type wrench groove is arranged at the outer end of the fourth cylinder, a rotation direction indication arrow is arranged on the outer end face of the setting rod 711 and is biased to one side of the input end of the needling/flame delay detonator 73 so as to indicate the rotation direction of the setting rod, the fifth cylinder is arranged in a fourth-order hole of the penetration body 1, the sixth cylinder is arranged in a fifth-order hole of the penetration body 1, and the axial limit (radial direction for the penetration body 1) of the setting rod 711 in the penetration body 1, namely, the second step hole is realized by a step surface between the fourth-order hole and the fifth-order hole; the setting rod 711 is provided with a thirteenth stepped hole along the radial direction, wherein the thirteenth stepped hole comprises a forty-second-order hole and a forty-third-order hole with diameters decreasing gradually, and when the setting rod 711 is set into a delay action mode, the axis of the thirteenth stepped hole is coaxial with the axis of the first stepped hole of the penetration body 1, namely the fuse axis; the setting rod 711 is radially provided with a fourth fourteenth-order hole along the sixth cylinder, the fourth fourteenth-order hole is a blind hole and is not communicated with the fourth thirteenth-order hole, and the axis of the setting rod 711 is perpendicular to and coplanar with the axis of the thirteenth stepped hole; a sixth blind hole is formed in the inner end surface of the setting rod 711 along the axis of the setting rod, and the sixth blind hole is orthogonally communicated with the forty-second order hole; the needling/flame delay detonator 72 and the needling instant detonator 73 are respectively arranged in the forty-second-order hole and the forty-fourth-order hole in a needling end outward posture and are fixed in a hole spot riveting manner; the sealing ring 712 is sleeved in the annular groove on the fourth cylinder and is used for sealing the fixing rod 711; on the contour surface of the plastic sleeve 11 around the outer end surface of the wrench groove of the setting rod 711, marks of "delay", "inertia" and "instant" or "DEL", "SQ" and "INRTL" corresponding to the rotational direction indication arrow of the outer end surface of the setting rod 711 are engraved, respectively.
The linear generator 18 comprises a baffle 181, a striking block 182, a motor spring 183, a magnetic recoil generator 184, a safety piece 185 and a helicoid 186, wherein the baffle 181 is arranged in a sixteenth-stage hole of the motor base 14, the lower surface of the baffle is tightly attached to the bottom of the sixteenth-stage hole of the motor base 14, the striking block 182 and the motor spring 183 are arranged in a seventeenth-stage hole of the motor base 14, the upper surface of the striking block 182 is tightly attached to the lower surface of the baffle 181 and is used for pushing a magnetic core of the lower magnetic recoil generator 184, the energy of the magnetic core is increased, the safety piece 185 is sheared, the upper half of the motor spring 183 is pre-pressed and sleeved on the cylindrical surface of the lower section of the striking block 182, the lower half of the motor spring 183 is abutted against the bottom of the seventeenth-stage hole of the motor base 14, the baffle 171 is used for axially positioning the striking block 182, the motor spring 183 is used for enabling the striking block 182 to have a definite striking stroke before being transmitted, so that the magnetic recoil generator 184 is endowed with higher input energy, the safety piece 185 and the helicoid 186 are arranged in the twentieth-stage hole and the twenty-first-stage hole of the motor base 14 from top to bottom, the upper side wall of the magnetic recoil generator 184 is connected with the upper side wall of the motor base 184, and the helicoid 186 is abutted against the upper end surface of the magnetic core 184; the motor base 14 is provided with a fourth through hole eccentrically arranged downwards along the axis, the electronic control module is arranged in the fourth through hole, after the magnetic recoil generator 184 generates electricity, the electric energy is stored in a capacitor in the electronic control module, and the electronic control module is used for controlling the delay releasing insurance and the ignition of the electric ignition tube 24.
The safety and explosion-proof release mechanism 15 is in the prior art, the bottom center of the safety and explosion-proof release mechanism 15 is provided with a detonating tube, the inner horizontal rotor of the safety and explosion-proof release mechanism is provided with a needled detonator, and the needled detonator is positioned at the rear bottom of the shell of the safety and explosion-proof release mechanism 15. The needled detonator in the horizontal rotor is accidentally ignited in the explosion-proof state, so that the shell of the explosion-proof mechanism 15 is not exploded through, and the detonating tube is not detonated. Under the state of releasing the insurance, the needle detonator in the horizontal rotor is turned right, and the axis of the needle detonator coincides with or is close to the axis of the detonator and the detonating tube, so that normal ignition and explosion propagation are ensured.
The invention relates to a working process of an electromechanical trigger fuse of a medium-and-large-caliber line bore shell head for releasing safety of a target base, which comprises the following steps:
before firing the projectile, the action time setting mechanism 7 is manually set, and the action time mode is selected according to the type of shooting target, whether it is a delay action mode, an inertia action mode or an instantaneous action mode. Referring to fig. 1, 6 and 9, when a special wrench or coin is used to twist the setting lever 711 in a straight line type wrench groove so that an arrow on the groove points to one side of the fuse head and corresponds to the mark 'delay' on the outer surface of the plastic sleeve 11, the fuse action time mode is a delay action mode; referring to fig. 1, 7 and 9, when the setting lever 711 is twisted by a special wrench or a coin to make an upper arrow point to one side of the adapter plate 42 and correspond to the mark "inertia" on the outer surface of the plastic sleeve 11, the fuze action time mode is an inertia action mode; referring to fig. 1, 8 and 9, when the setting lever 711 is twisted with a special wrench or coin so that the arrow on the setting lever points to the tail side of the fuze corresponding to the mark "instant" on the outer surface of the plastic sleeve 11, the fuze action time mode is an instant attack mode. Before the projectile is launched, the arming time setting mechanism 6 is manually set according to the estimated trajectory, and the arming time of the arming time setting mechanism 6 is set by rotating the upper arming ring assembly 61, the middle arming ring assembly 62 and the lower arming ring assembly 63. The design of the internal charging structure of the needling/flame delay detonator 72 ensures that the action time is respectively short delay and instant when the input of the two ends of the detonator is different.
At the time of firing of the projectile, the arming time setting mechanism 6 starts timing. Under the action of the recoil force, the striking block 182 strikes the magnetic core of the magnetic recoil generator 184 downwards against the resistance of the pre-pressing motor spring 183, the magnetic core of the magnetic recoil generator 184 shears the safety piece 185 under the combined action of the striking force of the striking block 182 and the recoil force of the magnetic recoil generator 184, the magnetic force lines are cut, the magnetic recoil generator 184 generates electricity, and the electric energy is stored in the capacitor in the electronic module. The inertial pin in the safety and explosion-proof mechanism 15 overcomes the resistance sinking of the inertial pin spring under the action of the recoil force generated by the shot firing, releases the horizontal rotor of the revolving body, and releases the first safety of the horizontal rotor of the revolving body, namely the recoil safety. When the projectile moves to the vicinity of the muzzle, the two braking claws in the safety and explosion suppression danger removing mechanism 15 compress the stop pin and the braking claw spring under the action of centrifugal force, and the second safety of the revolving body, namely the centrifugal safety, is removed. After the pill flies out the post-effect period or is close to the post-effect period, the revolving body drives the clock delay releasing safety mechanism without the return moment to start moving under the action of centrifugal moment.
In the process of the shot flight, when the shot flies to a position far away from the safety distance of the muzzle, the rotary body in the safety and explosion relief mechanism 15 carries the needled detonator to be aligned to the alignment position of the explosion transfer sequence, namely, the upper alignment second firing pin 35 and the lower alignment explosion transfer tube 17, and the fuze is in a priming state. As the shot flight time reaches the preset moment of the arming time setting mechanism 6, the arming time setting mechanism 6 outputs an electric signal to the induction setting electronic component 41, the induction setting electronic component 41 transmits the electric signal to the electric pin pusher 43 through the adapter plate 42, the electric pin pusher 43 pushes the stop pin 45 to move downwards and shear the shear pin 44 after firing, so that the rectangular slot opening of the stop pin 45 is opposite to the fire blocking rod 46, the outer end of the fire blocking rod 46 is thrown into the rectangular slot of the stop pin 45 under the centrifugal inertia force generated by rotation of the shot, the inner end of the fire blocking rod is not used for blocking the central fire transmission hole of the first firing pin 33 any more, the first firing pin 33 is released, the first firing pin 33 can move axially, and thereafter the third flange of the second firing pin 35 is communicated with the central fire transmission hole on the first firing pin 33, and the fuse is relieved. Under the centrifugal inertia force generated by the rotation of the projectile, 2-6 safety balls 34 on the first firing pin 33 are withdrawn outwards along the radial direction and clamped on the inclined plane of the conical hole of the first firing pin sleeve 31, so that the first firing pin 33 is in a ballistic safety state.
After the projectile hits the target or target area, the target medium fills the twenty-second order hole of the switch housing 22 such that the power contact tab 211 communicates with the power contact post 212 and the electrical squib 24 is energized and fired.
When the fuze is set to the delay action mode, the flame output of the electric squib 24 acts on the upper end, i.e., the needling input end, of the needling/flame delay detonator 72 which acts in the delay mode. In this mode of operation, the lower end of the pin/flame-delay detonator 72 is farther from the tip of the first striker 33, so that even under inertial impact, the first striker 33 does not strike the pin/flame-delay detonator 72, which is expected to delay.
When the fuze is set to the inertia action mode, the first striker 33 moves upward against the pre-pressing resistance of the first striker spring 32 and strikes the needle-punched instant detonator 73 in the setting lever 711 due to the inertia action generated by the impact of the projectile on the target, and the needle-punched instant detonator 73 explodes instantaneously. In this mode of operation, the action of the electric squib 24 is blocked by the setting lever 711, with no effect on the inertial triggering action.
When the fuze is set to the burst mode, the flame output of the electric squib 24 acts on the upper end, i.e., the flame input end, of the acupuncture/flame-delay detonator 72, which acts in the burst mode, while the first striker 33 moves upward against the pre-compression resistance of the pre-compression first striker spring 32 and strikes the lower end, i.e., the acupuncture input end, of the acupuncture/flame-delay detonator 72 in the set lever 711 due to the inertia effect generated by the impact of the projectile on the target, and the acupuncture/flame-delay detonator 72 explodes instantaneously in the inertia trigger mode, which acts in the inertia effect mode as a backup of the above-described burst effect.
In any of the above three modes of operation, the high temperature and high pressure products such as the flame generated by the common explosion of the electric squib 24, the needling/flame delay detonator 72 and the needling instant detonator 73 are transmitted downwards through the second hole of the penetration body 1 and explode the tip of the first firing pin 33 and the upper end of the first cylinder, so that the central fire transmission hole arranged on the first firing pin 33 is communicated with the second hole of the penetration body, the high temperature and high pressure products such as the flame continue to be transmitted downwards through the central fire transmission hole and push the second firing pin 35 to shear the third flange thereon and move downwards, the second firing pin 35 impacts the needling detonator which is released by the safety and explosion isolation mechanism 15, so that the centered detonator is ignited for explosion, the transfer tube 17 is detonated, and the pellets are detonated by the transfer tube 17. The booster 172 in the booster 17 adopts an energy-gathering structure, which is helpful for reliably detonating the long-distance, relatively insensitive and more explosive charges. As described above, the striking mechanism 2 and the inertia mechanism 3 are provided in parallel and in redundant arrangement. One of the sets fires and the other set is exploded. One set of the fuse is not ignited, and the other set of fuse is used as a backup to finish the scheduled ignition, so that the reliability of the fuse ignition is higher. And the failure of the ignition of both sets of ignition mechanisms is a small probability event.
The invention relates to a main safety principle of an electromechanical trigger fuse of a medium-and-large-caliber line bore shell head for releasing safety of a target base, which comprises the following steps:
the safety and explosion-proof releasing mechanism 15 comprises an explosion-proof mechanism, a post-production safety mechanism, a centrifugal safety mechanism, a delay explosion-proof releasing mechanism and a self-destruction mechanism, has the functions of explosion-proof, redundant safety, delay explosion-proof releasing and self-destruction, and is in an explosion-proof state within the safety distance of the projectile. The rotary body (horizontal rotor) in the safety and explosion-proof mechanism 15 is locked by a centrifugal safety mechanism (a pair of centrifugal claws) and an inertial pin (a squat safety mechanism) to form redundant safety, so that the explosion-proof safety of the fuze in the service processing stage is ensured. In the in-bore firing stage, since the non-return moment clock mechanism is used as a delay release explosion-proof mechanism, the explosion-proof safety of the fuze in the safe distance between the inside and the outside of the bore can be ensured, and in this state, even if the detonator in the revolving body (horizontal rotor) is accidentally fired, the subsequent booster tube cannot be detonated.
In the assembled condition, the fire-retarding rod 46 is locked by the blocking pin 45 and cannot move to be in a state of blocking the fire transfer channel, at the moment, even if the electric ignition tube 24 in the fire-retarding mechanism 2 or the needling/flame delay detonator 72 or the needling instant detonator 73 in the action time setting mechanism 7 is touched, the electric ignition is accidentally started and exploded, the tip of the first firing pin 33 and the upper end of the first circle are blasted, high-temperature and high-pressure products generated by the explosion of the detonator are blocked in the central fire transfer hole of the first firing pin 33 due to the existence of the fire-retarding rod 46, the second firing pin 35 cannot be pushed to move downwards, the second firing pin 35 cannot be used for piercing the needled detonator in the safety and explosion-proof mechanism 15, the fire-retarding tube 17 cannot be detonated, and structural members such as a fuse connector have complete structure and no dangerous rupture disc fly out, so that the safety of the fuse is ensured. After the safety and release explosion-proof mechanism 15 is installed in the fuse body, the neglected installation and reverse installation of the fuse body can be prevented by adopting a mode of visual inspection through the central hole of the connecting body 16. In addition, the blocking pin 45 is secured by the shear pin 44, the first striker 33 is secured by the preloaded first striker spring 32 and the safety ball 34, the second striker 35 is secured by the third flange at the upper end of the outer side wall thereof, the striking block 182 is secured by the preloaded motor spring 183, and the magnetic core of the magnetic recoil generator 184 is secured by the safety tab 185. These securing elements (features) bring the respective secured element into the assembled state.
During service treatment, the fuse is in a safety state, namely a factory assembly state, and is subjected to reliable impact and vibration, including accidental falling, transportation vibration and the like, so that the fuse cannot be accidentally relieved, and accidental explosion is prevented. At a trusted drop height, such as 1.5m, when the fuze head is accidentally dropped upward to the ground, the motor spring 183 in the linear generator 18 can ensure that the striking block 182 does not strike the core of the lower magnetic squat generator 184, and the core of the magnetic squat generator 184 does not shear the safety disc 185 due to inertia. In contrast, even if the inertia is large and the magnetic recoil generator 184 shears the safety piece 185 to generate power, the electric ignition tube 24 is not ignited by accidental energization because the electric receiving piece 211 and the electric receiving piece 212 in the electric receiving rod member 21 are not closed. The third flange at the upper end of the outer side wall of the second firing pin 35 ensures that the second firing pin 35 will not collide with the needled detonator in the explosion-proof mechanism 15 to be safely and freely released, so that the detonator will not be accidentally fired.
The delay releasing safety mechanism 4 and the safety and explosion-proof mechanism 15 can ensure that the fuse cannot be released when the fuse falls off the ground accidentally, namely, the generated falling impact, accidental falling and transportation vibration cannot cause the shear pin 44 to be cut off accidentally, the blocking pin 45 is blocked by the shear pin 44 and cannot fall freely, the outer end face of the fire blocking rod 46 is propped against by the blocking pin 45, and the fuse cannot move outwards due to centrifugal inertia force, so that a central fire transmission channel is always blocked, even if the electric ignition tube 24 stuck in the electric ignition tube seat 25 explodes accidentally, or any one of the needle/flame delay detonator 72 and the needle-punched instantaneous detonator 73 which are riveted in the fixing rod 711 explodes accidentally or simultaneously, the second firing pin 35 cannot be subjected to explosion impact, and the needle-punched detonator in the lower safety and explosion-proof mechanism 15 cannot be impacted and fire the explosion-proof mechanism, so that the explosion tube 17 below the safety and explosion-proof mechanism 15 cannot be detonated, and the fuse is ensured in the service processing stage.
If the safety function of the delay releasing safety mechanism 4 fails accidentally in the service processing process, such as breaking or neglecting the mounting of the shear pin 44, the stop pin 45 moves downwards under the impact overload action of transportation vibration and the like, the stop pin 45 loses the restraint action on the fire-retarding rod 46, at this time, if the fuse falls accidentally to generate rotation, the fire-retarding rod 46 is thrown away under the action of centrifugal inertia force, and the blocking action on the central fire-transmitting channel is lost, but the safety under the safety and the explosion-relieving mechanism 15 can still ensure safety.
The fuze booster is made of black-14C, and meets the requirements of GJB373B-2019 on booster in terms of safety design criteria of fuze.
Claims (9)
1. An electromechanical trigger fuze of a medium-and-large-caliber line bore shell head for target base arming is characterized in that: the device comprises an penetration body (1), a collision firing mechanism (2), an inertial firing mechanism (3), a delay releasing safety mechanism (4), a rainproof mechanism (5), a releasing safety time setting mechanism (6), an acting time setting mechanism (7), a pressing sleeve (8), an upper sealing ring (10), a plastic sleeve (11), a stop pin (12), a lower sealing ring (13), a motor base (14), a safety and releasing explosion-proof mechanism (15), a connecting body (16), a booster tube (17), six fastening screws (9) and three linear generators (18); the device comprises a rainproof mechanism (5), a collision firing mechanism (2), a release time setting mechanism (6), an action time setting mechanism (7), an inertial firing mechanism (3), a safety and release explosion-proof mechanism (15) and a detonating tube (17), which are arranged along the axis of a fuze, namely the axis of an penetration body (1), in sequence from top to bottom; the pressing sleeve (8) and the plastic sleeve (11) are sleeved on the penetration body (1) from top to bottom, and the respective upper surface and lower surface of the pressing sleeve are provided with step surfaces, so that radial limit is realized through the step surfaces; the upper sealing ring (10) and the lower sealing ring (13) are respectively positioned in annular grooves on the upper step surface and the lower step surface of the plastic sleeve (11) and are used for sealing the structure of the plastic sleeve (11); the top surface of the penetration body (1) is provided with a first stepped hole downwards along the axis of the penetration body, the penetration body sequentially comprises a first stepped hole and a second stepped hole, and the second stepped hole is a blind hole; a first through hole parallel to the second step hole is eccentrically arranged downwards from the bottom surface of the second step hole of the penetration body (1); the outer side wall of the penetration body (1) is provided with a second stepped hole along the radial direction, the penetration body comprises a third stepped hole, a fourth stepped hole, a fifth stepped hole and a sixth stepped hole, the diameters of the third stepped hole, the fourth stepped hole, the fifth stepped hole and the sixth stepped hole are gradually decreased from outside to inside, the axis of the second stepped hole is orthogonal to and coplanar with the axis of the first stepped hole, and the axis of the second stepped hole is perpendicular to but not coplanar with the axis of the first through hole; the penetration body (1) is uniformly provided with a first group of six threaded holes along the radial direction orthogonal to the second step holes, six fastening screws (9) are respectively arranged in the first group of six threaded holes and screwed into the safety release time setting mechanism (6) for preventing relative rotation between the safety release time setting mechanism (6) and the penetration body (1); the motor seat (14) is positioned at the lower part of the penetration body (1), and a third stepped hole is formed in the top surface of the motor seat (14) downwards along the axis of the motor seat, and comprises a seventh-order hole, an eighth-order hole, a ninth-order hole and a tenth-order hole with diameters decreasing from top to bottom in sequence; the top surface of the motor base (14) is provided with a fourth stepped hole and a second threaded hole which are coaxial in a downward eccentric way along the axis of the motor base, wherein the fourth stepped hole comprises an eleventh hole, a twelfth hole, a thirteenth hole, a fourteenth hole and a fifteenth hole; the second threaded hole is positioned on the bottom surface of the motor seat (14) and is abutted against the fifteenth-order hole; the outer side wall of the motor base (14) is provided with a first blind hole along the radial direction of the motor base, and the axis of the first blind hole is respectively in coplanarity and orthogonalization with the axis of the third stepped hole and the axis of the fourth stepped hole and is communicated with the eighth stepped hole; the outer side wall of the motor base (14) is provided with a first shearing pin hole above the first blind hole along the radial direction of the motor base, the axis of the first shearing pin hole is parallel and coplanar with the axis of the first blind hole and is communicated with a fourteenth-order hole, and the axis of the first shearing pin hole is orthogonal and coplanar with the axis of the fourteenth-order hole; a second blind hole with an eccentric axis and a parallel axis is formed downwards from the top surface of the motor base (14), the second blind hole is coaxially communicated with the first through hole of the penetration body (1), the diameters of the second blind hole and the first through hole are the same, and the axes of the second blind hole are respectively parallel and coplanar with the axes of the third stepped hole and the fourth stepped hole; the motor base (14) is provided with three groups of same parallel stepped holes in a downward eccentric manner along the axis of the motor base, namely a fifth stepped hole, a sixth stepped hole and a seventh stepped hole, wherein the fifth stepped hole is arranged on the outer side of the middle of the sixth stepped hole and the seventh stepped hole, the three stepped holes are all six stepped holes, the stepped holes are a sixteenth stepped hole, a seventeenth stepped hole, an eighteenth stepped hole, a nineteenth stepped hole, a twentieth stepped hole and a twentieth first stepped hole which are coaxial in sequence from top to bottom, the diameters of the sixteenth to eighteenth stepped holes are reduced, and the diameters of the eighteenth to twentieth first stepped holes are increased; the anti-rotation pin (12) is arranged in a first through hole of the penetration body (1), the bottom end of the anti-rotation pin extends to the bottom of a second blind hole of the motor base (14) and is used for preventing relative rotation between the motor base (14) and the penetration body (1) and the motor base (14); the explosion-relieving time setting mechanism (6) is mainly positioned between the rainproof mechanism (5) and the pressure sleeve (8) and is distributed in an axisymmetric structure along the axis of the penetration body (1), the acting time setting mechanism (7) is arranged in a second stepped hole of the penetration body (1), the delay explosion-relieving mechanism (4) is positioned between the rainproof mechanism (5) and the explosion-relieving mechanism (15), the connecting body (16) is positioned outside the explosion-relieving mechanism (15) and the detonating tube (17) and is used for connecting or structurally restraining the penetration body (1), the motor seat (14), the explosion-relieving mechanism (15) and the detonating tube (17), the top end outer wall surface of the explosion-relieving mechanism is connected with the inner wall surface of the penetration body (1) through threads, the bottom end inner wall surface of the explosion-relieving mechanism is connected with the outer wall surface of the detonating tube (17) through threads, a hollow first flange is arranged in the middle of the inner wall of the connecting body (16), and the first flange is positioned between the explosion-relieving mechanism (15) and the detonating tube (17) and is positioned axially and used for restraining the explosion-relieving mechanism (15) and the detonating tube (17) and the explosion-relieving explosive charge by being matched with the explosion-relieving end of the explosion-relieving mechanism and the explosion-relieving mechanism; the three groups of same linear generators (18) are respectively positioned in a fifth stepped hole, a sixth stepped hole and a seventh stepped hole of the motor base (14) and are fixedly connected with the motor base (14).
2. The target-based disarmed medium and large bore shell head electromechanical triggering fuse of claim 1, wherein: the impact ignition mechanism (2) mainly comprises a power receiving rod component (21), a switch seat (22), a circuit box (23), an electric ignition tube (24), an electric ignition tube seat (25), a circuit board (26) and a supporting plate (27); the switch seat (22) is positioned below the rainproof mechanism (5), and an eighth stepped hole is formed in the top surface of the switch seat (22) along the axis of the switch seat downwards, wherein the eighth stepped hole comprises a twenty-second order hole, a twenty-third order hole, a twenty-fourth order hole, a twenty-fifth order hole, a twenty-sixth order hole and a twenty-seventh order hole, the diameters of the twenty-second order hole to the twenty-fifth order hole are decreased progressively, and the diameters of the twenty-fifth order hole to the twenty-seventh order hole are increased progressively; a ninth stepped hole is formed in the bottom surface of the switch seat (22) upwards along the axis of the switch seat, and comprises a twenty-eighth stepped hole and a twenty-ninth stepped hole; a third threaded hole is coaxially formed between the twenty-seventeenth order hole and the twenty-ninth order hole in the switch seat (22); the diameters of the twenty-seventh order hole, the third threaded hole, the twenty-ninth order hole and the twenty-eighth order hole from top to bottom are sequentially increased; the circuit box (23) is positioned above the penetration body (1), the lower surface of the circuit box is tightly attached to the upper surface of the penetration body (1), the top end of the circuit box (23) is arranged in a third threaded hole of the switch seat (22) and is connected with the switch seat (22) through threads, and the bottom end of the circuit box (23) is positioned in a first stepped hole of the penetration body (1); the circuit box (23) is provided with a thirty-first order hole from top to bottom along the axis; a tenth stepped hole is formed in the circuit box (23) along the axis of the circuit box from bottom to top, and comprises a thirty-first hole, a thirty-second hole, a thirty-third hole and a thirty-fourth hole with diameters decreasing in sequence; the supporting plate (27) is arranged at the bottom of a thirty-first-order hole of the circuit box (23), the circuit board (26) is coaxially arranged on the supporting plate (27), the upper surface of the circuit board is clung to the bottom of the thirty-first-order hole, the diameters of the circuit board (26) and the supporting plate (27) are the same as those of the thirty-first-order hole, the electric ignition tube seat (25) is coaxially arranged in the thirty-first-order hole and the thirty-second-order hole of the circuit box (23), the lower surface of the electric ignition tube seat (25) is flush with the opening of the thirty-first-order hole, the middle part of the outer side wall of the electric ignition tube seat is provided with a second flange, the second flange is supported at the opening of the central hole of the circuit board (26), the electric ignition tube seat (25) is provided with an eleventh stepped hole along the axis, the eleventh stepped hole comprises a third fifteenth stepped hole and a thirty-sixth stepped hole with the diameters decreasing from top to bottom, and the output end of the electric ignition tube (24) is downwards stuck in the thirty-fifth stepped hole of the electric ignition tube seat (25); the electric connection pole component (21) comprises an electric connection piece (211), an electric connection pole (212), an insulating sleeve (213) and an electric connection plate (214), wherein the electric connection piece (211) is arranged in a twenty-second order hole of the switch seat (22), the lower surface of the electric connection piece is attached to the bottom of the twenty-second order hole, the electric connection plate (214) is positioned at the opening of the circuit box (23), the insulating sleeve (213) is arranged in a twenty-fifth order hole and a twenty-sixth order hole of the switch seat (22), the lower surface of the insulating sleeve is abutted to the electric connection plate (214), two electric connection poles (212) are spaced at a certain distance, the lower half parts of the two electric connection poles are arranged in the insulating sleeve (213) and the electric connection plate (214) and are symmetrically arranged in parallel along the axis of the electric connection plate (214), and the upper ends of the electric connection plates extend out of the insulating sleeve (213) and the electric connection plate (214) and extend into a twenty-third order hole of the switch seat (22).
3. The target-based disarmed medium and large bore shell head electromechanical triggering fuse of claim 2, wherein: the inertial ignition mechanism (3) mainly comprises a first firing pin sleeve (31), a first firing pin spring (32), a first firing pin (33), a safety ball (34) and a second firing pin (35), wherein the length of the first firing pin (33) is longer than that of the second firing pin (35); the first needle striking sleeve (31) is arranged in a seventh-order hole of the motor base (14), the lower surface of the first needle striking sleeve is propped against the bottom of the seventh-order hole, and a third seventeenth-order hole, a third eighteenth-order hole, a conical hole and a third nineteenth-order hole with diameters increased from top to bottom are respectively formed in the first needle striking sleeve (31) along the axis of the first needle striking sleeve; the outer contour of the first needle (33) is composed of a first needle tip, a first cylinder, a second cylinder and a third cylinder which are coaxially arranged from top to bottom in sequence, the first needle tip, the first cylinder and the upper half section of the second cylinder are arranged in a third eighteenth-order hole of a first needle sleeve (31), the lower half section of the second cylinder extends into a conical hole and a thirty ninth-order hole of the first needle sleeve (31), the third cylinder is arranged in an eighth-order hole of a motor base (14), a central fire transmission hole of a blind hole structure is formed in the first needle (33), the thickness of the part, adjacent to the needle tip, of the blind hole bottom is between 0.2 and 0.9mm, 2-6 radial third blind holes are uniformly formed in the second cylinder of the first needle (33) along the circumferential direction, a second through hole is formed in the third cylinder of the first needle (33) along the radial direction, and the second through hole is communicated with the first blind hole in the assembly direction; one end of a first needle spring (32) in a pre-pressing state is sleeved on a first cylindrical surface of a first needle (33), and is abutted against an annular table top at the juncture of the first cylinder and a second cylinder, and the other end of the first needle spring is abutted against an annular step surface of a third seventeenth step hole and a thirty eighth step Kong Jiaojie which are bottoms of third eighteenth step holes; 2 to 6 safety balls (34) are arranged in 2 to 6 third blind holes of the first needle (33); the second firing pin (35) is mainly arranged in a tenth-order hole of the motor base (14), a third flange is arranged at the upper end of the outer side wall of the second firing pin, the third flange is arranged in a ninth-order hole of the motor base (14), the upper surface of the third flange is close to the hole bottom of the central fire transmission hole, namely the eighth-order hole, and the second firing pin (35) is fixed on the motor base (14) in a spot riveting mode; the tip of the second firing pin (35) is close to the bottom surface of the motor base (14), namely the upper surface of the safety and explosion-proof release mechanism (15).
4. A target-based disarmed medium and large bore shell head electromechanical triggering fuse as defined in claim 3, wherein: the delay releasing safety mechanism (4) mainly comprises an induction setting electronic component (41), an adapter plate (42), an electric pin pusher (43), a shearing pin (44), a blocking pin (45), a fire blocking rod (46) and a plug (47); the induction setting electronic component (41) is arranged in a thirty-first order hole of the circuit box (23), the adapter plate (42) is obliquely arranged at the inner side of the plastic sleeve (11), between the arming time setting mechanism (6) and the motor base (14) and used for realizing the electric connection between the arming time setting mechanism (6) and the electric pin pusher (43) arranged in the motor base (14), the inner end of the fire blocking rod (46) is arranged in a second through hole of the first striking pin (33) and used for blocking a central fire transmission hole on the first striking pin (33), the outer end of the fire blocking rod (46) is positioned in a first blind hole of the motor base (14), the outer end face of the fire blocking rod is propped against the inner wall of the fourteenth order hole of the motor base (14), the inner end of the fire-retarding rod (46) is provided with a weight-reducing center hole to ensure that the center of mass of the fire-retarding rod (46) is constantly positioned at the left side of the fuze axis and the projectile rotation axis, a stop pin (45) with the diameter larger than that of the fire-retarding rod (46) is positioned in a fourteenth-order hole of the motor base (14), the inner side outer wall surface of the stop pin is tightly attached to the outer end surface of the fire-retarding rod (46), the upper surface and the lower surface of the stop pin (45) are respectively provided with a fourth blind hole and a fifth blind hole downwards and upwards along the axes thereof for reducing the mass of the stop pin (45), the outer side wall of the stop pin (45) is provided with a second shearing pin hole along the radial direction, the second shearing pin hole is coaxially communicated with the first shearing pin hole along the same diameter in the assembled state, a rectangular groove is arranged at the other side of the stop pin (45) below the second shearing pin hole axis along the radial direction, the lower surface of the rectangular groove is higher than the lower edge of the outer end surface of the fire stopping rod (46), the width of the lower surface is larger than the diameter of the outer end of the fire stopping rod (46), after the delay releasing safety action of the preset electronic timer is finished, the electric pusher (43) fires, the stop pin (45) shears the shear pin (44) and moves downwards continuously, the constraint on the fire stopping rod (46) is released, the outer end of the fire stopping rod (46) is withdrawn outwards under the action of centrifugal inertia force, the outer end of the fire stopping rod is thrown into the rectangular groove, the obstruction between a central fire transmission hole and a second firing pin (35) is eliminated, so that the second firing pin (35) can shear a third flange under the explosion action of an explosion element in the action time setting mechanism (7) and pierce a needle detonator which is already in the aligning position in the safety and releasing safety mechanism, the predetermined firing action is finished, the diameter of the shear pin (44) is larger, the inner end of the shear pin is arranged in a second shear pin hole of the stop pin (45), the outer end of the shear pin is arranged in a first shear pin hole of a seat (14), the outer end of the shear pin is used for limiting the axial action of the stop pin (45) is arranged in the first shear pin hole of the seat (14), the stop pin is used for limiting the axial action, the stop pin (45) can be prevented from being impacted by the impact pin (45) and the second presser (45) is arranged in a third-stage shock absorber (44) and can be filled downwards, and the impact pin is mainly is arranged on the bottom and can be pushed down by the stop pin (45 under the impact pin (45) and is arranged at the impact pin seat (43), the plug (47) is located in the second threaded hole of the motor base (14) and is connected to the motor base (14) through threads, and the lower surface of the plug (47) is flush with the lower surface of the motor base (14).
5. The target-based disarmed medium and large bore shell head electromechanical triggering fuse of claim 4, wherein: the rainproof mechanism (5) mainly comprises a moistureproof sheet (51), a rainproof hat (52) and a rainproof sheet (53); the moistureproof sheet (51) is arranged in a twenty-second order hole of the switch seat (22) and is fixed and sealed by a closing-in structure; along dampproofing piece (51) axis coaxial in proper order downwards be provided with rain-proof cap (52) and rain-proof piece (53), rain-proof cap (52) and rain-proof piece (53) all are located twenty-second order downthehole, and twelfth stepped hole has been seted up along its axis to rain-proof cap (52), and top-down includes forty order hole and forty first order hole that the diameter is increased gradually, and four third through-holes along circumference equipartition have been seted up along its axis decentration to rain-proof piece (53).
6. The target-based disarmed medium and large bore shell head electromechanical triggering fuse of claim 5, wherein: the rain-proof cap (52) is made of medium carbon steel or low carbon steel, and the top thickness of the rain-proof cap (52) is 0.5-0.8 mm; the diameter of the forty-th order hole is 3-4.5 mm; the rain-proof sheet (53) is made of medium carbon steel or low carbon steel, and the thickness of the rain-proof sheet (53) is not less than 0.5mm; the diameter of the third through hole is 3-4.5 mm; the wall thickness of the hole edges of two adjacent third through holes is 2-4 mm.
7. The target-based disarmed medium and large bore shell head electromechanical triggering fuse of claim 5, wherein: the arming time setting mechanism (6) mainly comprises an upper setting ring assembly (61), a middle setting ring assembly (62), a lower setting ring assembly (63) and an electronic assembly (64); the upper fixed ring assembly (61), the middle fixed ring assembly (62) and the lower fixed ring assembly (63) are sequentially arranged below the switch seat (22), above the supporting plate (27) and outside the circuit box (23) from top to bottom along the axis of the penetration body (1), annular step surfaces are respectively formed on the upper surface and the lower surface of the upper fixed ring assembly (61), the middle fixed ring assembly (62) and the lower fixed ring assembly (63), radial limit and axial limit are realized through the mutual matching of the annular step surfaces, and the electronic assembly (64) is arranged in a thirty-second order hole, a thirty-third order hole and a thirty-fourth order hole of the circuit box (23); the upper setting ring assembly (61), the middle setting ring assembly (62) and the lower setting ring assembly (63) respectively realize the setting of ten digits, units and ten digits of the arming time by rotation, and the outer surfaces of the upper setting ring assembly, the middle setting ring assembly and the lower setting ring assembly are marked with numerals.
8. The target-based disarmed medium and large bore shell head electromechanical triggering fuse of claim 6, wherein: the action time setting mechanism (7) comprises a setting rod part (71), a needling/flame delay detonator (72) and a needling instant detonator (73); the setting rod component (71) comprises a setting rod (711) and a sealing ring (712), and is positioned in the second stepped hole of the penetration body (1); the setting rod (711) is composed of a fourth cylinder, a fifth cylinder and a sixth cylinder which are sequentially arranged along the axial direction of the setting rod, a through straight-line-shaped wrench groove is formed in the outer end of the fourth cylinder, a rotation direction indication arrow is arranged on the outer end face of the setting rod (711) and is biased to one side of the input end of the needling/flame delay detonator (73) so as to indicate the rotation direction of the setting rod, the fifth cylinder is arranged in a fourth-stage hole of the penetration body (1), the sixth cylinder is arranged in a fifth-stage hole of the penetration body (1), and the axial limit of the setting rod (711) in the penetration body (1), namely a second-stage hole, is realized by a step surface between the fourth-stage hole and the fifth-stage hole; the setting rod (711) is downwards provided with a thirteenth stepped hole along the radial direction of the setting rod, the thirteenth stepped hole comprises a forty-second-order hole and a forty-third-order hole with the diameters decreasing gradually, and when the setting rod (711) is set into a delay action mode, the axis of the thirteenth stepped hole is coaxial with the axis of the first stepped hole of the penetration body (1), namely the axis of the fuze; the setting rod (711) is radially provided with a fourth fourteenth-order hole along a sixth cylinder, the fourth fourteenth-order hole is a blind hole and is not communicated with the fourth thirteenth-order hole, and the axis of the setting rod is perpendicular to and coplanar with the axis of the thirteenth stepped hole; a sixth blind hole is formed in the inner end face and the outer end face of the setting rod (711) along the axis of the setting rod, and the sixth blind hole is communicated with the forty-second order hole in an orthogonal mode; the needling/flame delay detonator (72) and the needling instant detonator (73) are respectively arranged in the forty-second-order hole and the forty-fourth-order hole in a mode that the needling ends face outwards and are fixed in a hole spot riveting mode; the sealing ring (712) is sleeved in the annular groove on the fourth cylinder and is used for sealing the fixing rod (711); the plastic sleeve (11) contour surface around the outer end surface of the wrench groove of the setting rod (711) is respectively carved with marks of delay, inertia and instant sending or DEL, INRTL and SQ corresponding to the indication arrow of the outer end surface of the setting rod (711).
9. The target-based disarmed medium and large bore shell head electromechanical triggering fuse of claim 8, wherein: the linear generator (18) comprises a baffle plate (181), a striking block (182), a motor spring (183), a magnetic recoil generator (184), a safety plate (185) and a helicoidal coil (186), wherein the baffle plate (181) is arranged in a sixteenth-order hole of the motor base (14), the lower surface of the baffle plate is tightly attached to the bottom of the sixteenth-order hole of the motor base (14), the striking block (182) and the motor spring (183) are arranged in the seventeenth-order hole of the motor base (14), the upper surface of the striking block (182) is tightly attached to the lower surface of the baffle plate (181), the upper half section of the motor spring (183) is sleeved on the cylindrical surface of the lower section of the striking block (182), the lower half section of the motor spring (183) is abutted to the bottom of the seventeenth-order hole of the motor base (14), the safety plate (185) and the helicoidal coil (186) are arranged in the twentieth-order hole and the twenty-first-order hole of the motor base (14) from top to bottom, the helicoidal coil (186) is connected to the motor base (14) through threads on the outer side wall, the upper half section of the magnetic recoil generator (184) is arranged in the seventeenth-order hole of the motor base (14), and the upper half section of the magnetic recoil generator (184) is abutted to the magnetic core (184) in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311785781.5A CN117570793A (en) | 2023-12-25 | 2023-12-25 | Electromechanical trigger fuze for medium and large caliber line bore shell head for target base arming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311785781.5A CN117570793A (en) | 2023-12-25 | 2023-12-25 | Electromechanical trigger fuze for medium and large caliber line bore shell head for target base arming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117570793A true CN117570793A (en) | 2024-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311785781.5A Pending CN117570793A (en) | 2023-12-25 | 2023-12-25 | Electromechanical trigger fuze for medium and large caliber line bore shell head for target base arming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117570793A (en) |
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2023
- 2023-12-25 CN CN202311785781.5A patent/CN117570793A/en active Pending
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