CN116839425A - Hail-suppression and rain-enhancement bomb double-path ignition flame-proof fuze - Google Patents
Hail-suppression and rain-enhancement bomb double-path ignition flame-proof fuze Download PDFInfo
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- CN116839425A CN116839425A CN202311058829.2A CN202311058829A CN116839425A CN 116839425 A CN116839425 A CN 116839425A CN 202311058829 A CN202311058829 A CN 202311058829A CN 116839425 A CN116839425 A CN 116839425A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G15/00—Devices or methods for influencing weather conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
- F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
- F42C9/14—Double fuzes; Multiple fuzes
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Abstract
The utility model discloses a double-way ignition flame-proof fuze of a hail-suppression and rain-enhancement bomb, which belongs to the technical field of bomb fuzes and comprises a fuze body, a double-way ignition mechanism, a time delay mechanism, a flame-proof mechanism and a flame-guiding tube, wherein the double-way ignition mechanism is arranged at the front part of an inner cavity of the fuze body; the explosion-proof mechanism comprises a horizontal rotor and a rotor seat, a fire transmission hole is formed in the middle of the rotor seat, a rotor limiting centrifugal mechanism is arranged in the rotor seat, the rotor can be used for blocking the fire transmission hole in a muzzle to ensure the safety of a fuse in a bore, and the fuse is prevented from being broken down, pre-fried and near-fried; and after the explosion hole is ignited, the pilot tube can be ignited through the pilot hole, and finally the charged projectile body is detonated. According to the utility model, the double-way ignition delay explosion suppression is adopted, so that the reliability and safety of the fuse are further improved, and the size of the broken piece is controlled.
Description
Technical Field
The utility model belongs to the technical field of shell fuses, and particularly relates to a dual-path ignition flame-proof fuse for hail suppression and rain enhancement shells.
Background
The artificial hail-suppression and rain-enhancement bullet is called as human rain bullet for short, and has the function of preventing and relieving natural disasters such as drought, hail and the like. At present, the failure mode of the 37 mm artificial hail-suppression and rain-enhancement bullet is mainly that the fuze blind fire and the bullet fragments are large, which are main reasons for causing harm to ground personnel, houses, equipment and the like, and the government has the requirement that the fuze blind fire rate is less than or equal to 1/1000 for reducing the harm of 37 people after the rain-bullet operation.
However, the existing rain bullet fuze has no explosion-proof mechanism, the misfire rate does not meet the file requirement, and the flameproof mechanism can cause fire when the fuze acts after contacting with insurance, so that the fuze is invalid, pre-fried and near-fried, and the elastic sheet which is not completely exploded causes serious harm to ground personnel, houses, equipment and the like. In order to meet market demands and reduce fuzzing rate, research and development personnel design and develop a novel hail-suppression and rain-enhancement bomb double-path ignition flame-proof fuze.
Disclosure of Invention
The utility model aims to provide a double-way ignition flame-proof fuze for hail-suppression and rain-enhancement bullets, and aims to solve the technical problems that no flame-proof mechanism of the human rain-bullet fuze can cause fire-bouncing, so that the fuze is invalid, early-fried and near-fried, and an unexplosive elastic sheet has serious harm in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the double-way ignition flame-proof fuze comprises a fuze body, a double-way ignition mechanism, a time delay mechanism, a flame-proof mechanism and a detonating tube, wherein the double-way ignition mechanism, the time delay mechanism, the flame-proof mechanism and the detonating tube are arranged in the fuze body; the explosion-proof mechanism comprises a horizontal rotor and a rotor seat, wherein a fire transmission hole is formed in the middle of the rotor seat, and a rotor limiting centrifugal mechanism is arranged in the rotor seat and used for limiting the rotor in a muzzle, blocking the fire transmission hole, releasing the limitation of the rotor after the explosion-proof mechanism exits the muzzle and exposing the fire transmission hole.
Preferably, the two-way ignition mechanism comprises an ignition body, a side firing pin and a fire cap, wherein two ignition holes are formed in the ignition body, the ignition holes are through holes penetrating through the ignition body up and down, the needle tip of the side firing pin is upwards arranged at the bottom of the ignition holes, the side firing pin is sleeved with a spring, the fire cap is arranged at the top of the spring, and a fire cap screw plug is screwed at the top orifice of the ignition hole; the bottom opening of the ignition hole corresponds to a fire transmission channel of the delay mechanism; the side bottom of the ignition body is provided with a pressure relief hole communicated with the ignition hole.
Preferably, the time delay mechanism comprises a tray and an upper paper pad at the upper end and a lower paper pad at the lower end of the tray, wherein the upper surface and the lower surface of the tray and the inner part of the tray are respectively provided with a fire transmission channel capable of being filled with time delay medicaments, the bottom of the tray is provided with a base plate, the upper end of the fire transmission channel in the tray is communicated with the upper paper pad and the fire transmission holes of the two-way ignition mechanism, the lower end of the fire transmission channel in the tray is communicated with the lower paper pad and the fire transmission holes on the base plate, and the center of the bottom of the tray is provided with a medicament tank which is filled with the time delay medicaments in a pressing way and is communicated with the fire transmission channels for igniting the explosion-proof mechanism below the fire transmission channels; the medicine tray, the upper paper pad, the lower paper pad and the backing plate are connected with the double-path ignition mechanism through the positioning structure.
Preferably, the positioning structure comprises a plurality of positioning pins, the positioning pins are radially arranged around the fire transmission holes in the middle of the base plate, the lower ends of the positioning pins are inserted into the mounting holes in the top of the base plate through the adhesive, and the upper ends of the positioning pins are inserted into the bottom positioning holes of the double-path ignition mechanism.
Preferably, the upper surface and the lower surface of the medicine tray are both provided with annular fire transfer channels, and the inside of the medicine tray is provided with a middle fire transfer channel communicated with the upper annular fire transfer channel and the lower annular fire transfer channel; the medicine groove is communicated with the annular fire transmission channel through the branch groove.
Preferably, the thickness of the medicine tray is 7mm; the ignition bodies of the fuze body, the medicine tray, the backing plate and the two-way ignition mechanism are all made of 2A12 aluminum alloy materials; the double-path ignition mechanism and the delay mechanism are pressed together by a loading machine with the pressure of 4.5+/-0.5 Mpa.
Preferably, one side of the rotor seat is provided with an eccentric sinking groove for placing the rotor, and the middle rotor of the eccentric sinking groove is in running fit; the middle part of the rotor seat is provided with a fire transmission hole which penetrates through the bottom of the eccentric sinking groove vertically; the rotor limiting centrifugal mechanism is arranged on the side face of the rotor seat and comprises a centrifugal pin, a spring and a pin cover, a pin hole is formed in the side face of the rotor seat, the pin hole is opposite to the rotor, and the pin hole is coplanar with the middle longitudinal section of the eccentric sinking groove and coincides with the diameter of the rotor seat; the centrifugal pin is radially arranged in the pin hole, an opening facing the eccentric sinking groove is formed in the bottom of the pin hole, and the bottom of the centrifugal pin extends to the outside of the opening to be matched with the clamping groove at the bottom of the rotor; the spring is arranged between the centrifugal pin and the pin cover, and the pin cover is arranged in the outer side orifice of the pin hole.
Preferably, the rotor is a special-shaped rotary member, the middle part of the rotor is provided with a shaft hole in running fit with a rotor shaft in the middle part of the eccentric sinking groove, the rotor comprises a fan-shaped part and a rectangular part, the eccentric sinking groove is circular, the arc edges of the fan-shaped part and the rectangular part are matched with the circumference edge of the eccentric sinking groove, and the circle center of the circle where the arc edges of the fan-shaped part and the rectangular part are located is concentric with the rotor shaft; the rectangular part is provided with explosion propagation holes which can correspond to the fire propagation holes, and the fan-shaped part is a solid; and a safety pin is arranged on the outer side surface of the eccentric sinking groove, is arranged on the straight side of the rectangular part and is close to the outer side edge of the rotor seat, and is used for enabling the axis of the explosion transmission hole to coincide with the axis of the fire transmission hole after the rotor rotates.
Preferably, cover plates are arranged at the tops of the rotor seat and the rotor, and the central holes of the cover plates correspond to the fire transmission holes; the cover plate is connected with the rotor seat through a screw, a detonator is arranged in a central hole of the cover plate, and the detonator is arranged right above a fire transmission hole in the middle of the rotor seat; the cover plate and the rotor seat are connected with the time delay mechanism.
Preferably, the opening end of the fuse body is connected with a connecting screw cover, and a through hole tightly matched with the detonating tube is arranged in the middle of the connecting screw cover.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: compared with the prior art, the utility model adopts double-way ignition, the detonation time is prolonged by the delay mechanism, the horizontal rotor is limited on the rotor seat by the rotor limiting centrifugal mechanism, and the rotor can be limited and the fire transmission hole can be blocked in the muzzle, so that the safety of the fuze in the chamber is ensured, and the fuze is prevented from being ignited, and the fuze is prevented from being invalid, early-fried and near-fried; and after the explosion hole is ignited, the pilot tube can be ignited through the pilot hole, and finally the charged projectile body is detonated. The utility model adopts double-way ignition delay explosion suppression, further improves the reliability and safety of the fuse, and controls the size of the broken piece.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural diagram of a dual-path ignition flame-proof fuze of a hail suppression and rain enhancement bomb provided by an embodiment of the utility model;
FIG. 2 is a schematic view of the dual firing mechanism of FIG. 1;
FIG. 3 is a schematic diagram of the delay mechanism of FIG. 1;
FIG. 4 is an assembly view of the dual firing mechanism and the delay mechanism after the dual firing mechanism and the delay mechanism are combined;
FIG. 5 is a schematic view of the flameout mechanism of FIG. 1;
FIG. 6 is a schematic view of the structure within the pin holes in the side of the rotor seat of FIG. 5;
FIG. 7 is a top view of the flame-out mechanism of FIG. 5 with the rotor removed;
FIG. 8 is a top view of the flameout mechanism of FIG. 5;
FIG. 9 is a top view of FIG. 8 with the cover plate removed;
in the figure: 1-fuse body, 2-detonating tube, 3-connecting screw cap, 4-fire hole and 5-detonator;
100-two-way ignition mechanism, 101-ignition body, 102-side firing pin, 103-fire cap, 104-ignition hole, 105-spring, 106-fire cap screw plug, 107-pressure release hole;
200-time delay mechanism, 201-medicine tray, 202-upper paper pad, 203-lower paper pad, 204-fire transmission channel and 205-backing plate; 206-delay agent, 207-locating pin;
300-explosion-proof mechanism, 301-rotor seat, 302-rotor, 312-sector part and 322-rectangular part; 303-eccentric sinking grooves, 304-rotor shafts, 305-shaft holes, 306-centrifugal pins, 307-springs, 308-pin covers, 309-pin holes, 310-explosion propagation holes, 311-safety pins, 312-cover plates, 313-screws, 314-limit pins, 315-limit holes, 316-safety pin holes and 317-threaded holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the dual-path ignition flame-proof fuze of the hail suppression and rain enhancement bomb provided by the embodiment of the utility model comprises a fuze body 1, a dual-path ignition mechanism 100, a time delay mechanism 200, a flame-proof mechanism 300 and a flame-guiding tube 2 inside the fuze body, wherein the fuze body 1 is a hollow shell with one end blocked, the dual-path ignition mechanism 100 is arranged at the front part of an inner cavity of the fuze body 1, and the time delay mechanism 200 is arranged between the dual-path ignition mechanism 100 and the flame-proof mechanism 300; the explosion-proof mechanism 300 comprises a horizontal rotor 302 and a rotor seat 301, wherein a fire transmission hole 4 is formed in the middle of the rotor seat 301, and a rotor limiting centrifugal mechanism is arranged in the rotor seat 301 and is used for limiting the rotor 302 in a muzzle, blocking the fire transmission hole, releasing the limitation of the rotor 302 after the muzzle is discharged and exposing the fire transmission hole 4; the detonating tube 2 is arranged at the rear end of the fuze body 1 and is used for detonating the charged projectile body. According to the utility model, double-way ignition is adopted, the detonation time is prolonged through the delay mechanism, the safety of the fuze in the chamber is ensured through the rotor limiting centrifugal mechanism by the horizontal rotor, the fuze failure, early explosion and near explosion caused by the fuze ignition are avoided, and the reliability and safety of the fuze are improved.
During specific manufacturing, the opening end of the fuse body 1 is connected with the connecting screw cover 3, and a through hole tightly matched with the detonating tube 2 is formed in the middle of the connecting screw cover 3. When the fuse is assembled, after the connecting screw cover is screwed into the fuse body, a sealing lead ring is placed in a gap between the bottom of the connecting screw cover and the contact part of the fuse body and used for guaranteeing the internal sealing of the fuse. Through carrying out reasonable optimization to the structure and the size of the fuze body, the bottom of its shutoff end is equipped with the cavity, carries out optimal design to its cavity position and joint strength, guarantees that the maximum axial stress of fuze body when the shell launches is in the allowable stress range, and secondly does benefit to the crushing performance of fuze body when the explosion to reach the purpose that reduces the burst after the explosion.
In one embodiment of the present utility model, as shown in fig. 2, the dual-path ignition mechanism 100 includes an ignition body 101, a side firing pin 102 and a fire cap 103, wherein two ignition holes 104 are provided in the ignition body 101, the ignition holes 104 are through holes penetrating the ignition body 101 up and down, the tip of the side firing pin 102 is upward arranged at the bottom of the ignition holes 104, the side firing pin 102 is sheathed with a spring 105, the fire cap 103 is arranged at the top of the spring 105, and a fire cap plug 106 is screwed at the top opening of the ignition holes 104; the bottom opening of the ignition hole 104 corresponds to a fire transmission channel of the delay mechanism 200; the side bottom of the ignition body 101 is provided with a pressure relief hole 107 penetrating the ignition hole 104. The structure adopts the principle of double-way ignition, the side striking needle spring compresses the spring under the action of huge recoil force to deform the spring, and the side striking needle triggers the fire cap, so that the ignition is successful.
The reliability of a single set of subsystems consisting of the side firing pin, the fire cap, the explosion-proof mechanism and the explosion-conducting tube is 97%, and the probability of simultaneous misfire of the two sets of subsystems is very small.
Let the reliability of two sets of subsystems be Rs, the reliability of the subsystem be Ri, and the system reliability Rs be represented by the following mathematical model calculation formula:
Rs=1-(1-R1)(1-R2)……(1-Rn)
the same fuse is connected with two identical subsystems in parallel, and then r1=r2=r, n=2, and the action reliability of the fuse system is calculated by a formula:
Rs=1-(1-R)2=0.9991=99.91%
i.e. after two subsystems with the same reliability of 97% in a fuze, the reliability of the fuze can be improved to 99.91%.
Therefore, the industry requires that the index of "fuze blind fire rate less than or equal to 1/1000" be realized through strict quality control.
As a preferable structure, as shown in fig. 2, the ignition body 101 is a tube body with an opening at the upper part, a boss is arranged at the bottom of the ignition body 101, and the pressure relief hole 107 is arranged at the root of the boss; the two ignition holes 104 are symmetrically arranged in the sidewall interlayer of the ignition body 101. The ignition body adopting the structure can lighten the weight of the ignition mechanism on one hand, and on the other hand, the pressure after ignition is convenient to release the pressure to the inside of the fuze body, and meanwhile, the head fragment quality of the fuze body is reduced.
In one embodiment of the present utility model, as shown in fig. 3, the delay mechanism 200 includes a tray 201, an upper paper pad 202 at an upper end thereof, and a lower paper pad 203 at a lower end thereof, wherein a fire transfer channel 204 capable of being filled with a delay agent is provided on both upper and lower surfaces of the tray 201 and inside thereof, a backing plate 205 is provided at a bottom of the tray 201, an upper end of the fire transfer channel 204 in the tray 201 is communicated with the upper paper pad 202 and the fire transfer holes 4 of the dual-path ignition mechanism 100, a lower end of the fire transfer channel 204 in the tray 201 is communicated with the lower paper pad 203 and the fire transfer holes 4 of the backing plate 205, and a medicine tank for pressing the delay agent 206 and communicating with the fire transfer channel 204 is provided at a central position of a bottom of the tray 201 for igniting the flameproof mechanism 300 below the same; the medicine tray 201, the upper paper pad 202, the lower paper pad 203 and the backing plate 205 are connected with the double-path ignition mechanism 100 through positioning structures. The delay medicament in the fire transmission channel on the upper surface and the lower surface of the medicine tray plays a role in delaying, so that the fire transmission is more stable, and the blind fire rate is reduced.
The specific working principle is as follows: the two-way ignition mechanism ignites the delayed medicament in the fire transmission channel on the upper surface of the medicament tray after ignition, and the delayed medicament in the fire transmission channel on the lower surface is ignited by the internal fire transmission channel after combustion, and finally the delayed medicament in the medicament tank at the central position is ignited. The delayed medicament in the medicament groove at the center of the bottom of the medicament tray is used for igniting a detonator in the explosion-proof mechanism below the medicament tray, so that the fire transfer is more stable, and the misfire rate is reduced.
As a preferred structure, as shown in fig. 3, the positioning structure comprises a plurality of positioning pins 207, wherein the positioning pins 207 are radially arranged around the fire transmission hole 4 in the middle of the backing plate 205, the lower ends of the positioning pins 207 are inserted into the mounting holes at the top of the backing plate 205 through an adhesive, and the upper ends of the positioning pins 207 are inserted into the bottom positioning holes of the two-way ignition mechanism 100. The positioning pin is a steel piece and provides support strength for the delay mechanism; the binder is shellac paint. During assembly, the locating pin is fixed on the backing plate, then the lower paper pad, the medicine tray and the upper paper pad are sleeved on the locating column in sequence, and finally the locating hole at the bottom of the ignition body is aligned with the locating pin and placed at the top of the upper paper pad.
When in specific manufacturing, the upper surface and the lower surface of the medicine tray 201 are both provided with annular fire transfer channels 204, and the inside of the medicine tray 201 is provided with middle fire transfer channels (not shown in the figure) which are communicated with the upper annular fire transfer channels 204 and the lower annular fire transfer channels 204; the medicine tank is communicated with the annular fire transmission channel 204 through the branch tank. The upper surface and the lower surface of the powder tray adopt annular fire transmission channels, so that the combustion time can be prolonged, the delayed powder combustion track is sequentially an upper surface annular fire transmission channel, a middle fire transmission channel, a lower surface annular fire transmission channel and a powder tank, and finally, a detonator or a detonating tube below the powder tank is ignited by the delayed powder in the powder tank, so that the fuze acts. The thickness of the manufactured medicine tray 21 is 7mm, the size of the same type of products is the smallest, the whole weight can be reduced, and the weight of the fuse body remains is further reduced.
In addition, the fire transfer hole 4 in the middle of the backing plate 205 is a step hole with a small upper part and a large lower part, and the fire transfer hole in the middle of the lower paper pad 222 is larger than the upper end hole of the fire transfer hole in the middle of the backing plate 205; the lower part of the stepped hole of the backing plate 205 correspondingly accommodates the upper part of the cover plate 312 in the explosion-proof mechanism, and meanwhile, the backing plate 205 is connected with the explosion-proof mechanism 300 through two limiting pins 314. Meanwhile, the cover plate 312 and the rotor seat 301 are correspondingly provided with limit holes 315 matched with limit pins 314, and the two limit pins 314 are symmetrically arranged on the rotor seat 301 and outside the eccentric sinking groove 303.
During assembly, the two-way ignition mechanism 100 and the delay mechanism 200 are pressed together by a loading machine with the pressure of 4.5+/-0.5 Mpa, as shown in fig. 4. When the medicine is specifically manufactured, the thickness of the medicine tray 201 is 7mm, and the delay medicine adopts smokeless delay medicine; the fuse body 1, the medicine tray 201, the backing plate 205 and the ignition body 101 of the double-path ignition mechanism 100 are made of 2A12 aluminum alloy materials, so that the overall weight of the fuse can be reduced. The static test results prove that the firing mechanism and the delay mechanism after the materials are replaced can meet the shooting requirement. The 2A12 high-hardness aluminum in the T4 state is selected as the material of the fuze body, so that the total weight of the fuze is reduced to about 75 g.
The delay mechanism has the following advantages:
firstly, in order to ensure that the fuse is reasonable in overall structure, the thickness of the medicine tray is designed to 7mm, and the size of the similar products is minimum.
Secondly, the combustion track of the delay agent in the medicine tray is optimized, so that the delay agent in the annular fire transmission channel on the upper surface of the medicine tray is ignited simultaneously after double-path ignition, the simultaneous ignition and the simultaneous combustion are ensured, and the risk factors such as fire channeling and the like are avoided, so that the shooting safety in the chamber is ensured.
And finally, selecting a smokeless delay agent, ensuring accurate delay time of the fuze, and effectively meeting shooting requirements on cloud layers through a more than 1000 start state test, wherein the designed delay time can meet the requirements of 13-17 seconds.
In one embodiment of the present utility model, as shown in fig. 5, an eccentric countersink 303 is disposed on one side of the rotor base 301 for placing the rotor, and a middle rotor 302 of the eccentric countersink 303 is in a rotating fit; the middle part of the rotor seat 301 is provided with a fire transmission hole 4 which penetrates through the bottom of the eccentric sinking groove 303 up and down; the rotor limiting centrifugal mechanism is arranged on the side surface of the rotor seat 301, the rotor limiting centrifugal mechanism comprises a centrifugal pin 306, a spring 307 and a pin cover 308, a pin hole 309 is arranged on the side surface of the rotor seat 301, the pin hole 309 is opposite to the rotor 302, and the pin hole 309 is coplanar with the middle longitudinal section of the eccentric sinking groove 303 and coincides with the diameter of the rotor seat 301; the centrifugal pin 306 is radially arranged in the pin hole 309, an opening facing the eccentric sinking groove 303 is arranged at the bottom of the pin hole 309, and the bottom of the centrifugal pin 306 extends to the outside of the opening to be matched with a clamping groove at the bottom of the rotor 302; the spring 307 is disposed between the eccentric pin 306 and the pin cover 308, and the pin cover 308 is disposed within the outer aperture of the pin bore 309. As shown in fig. 6-9, the horizontally installed rotor is rotated to realize whether the fire hole is blocked or not, the fuze is rotated at a high speed after the fire hole is opened, the centrifugal pin is moved outwards against the elastic force of the spring under the action of centrifugal force, the restriction on the rotor is relieved, and the rotor is rotated under the action of centrifugal force to expose the fire hole, so that the purpose of firing is achieved.
In one embodiment of the present utility model, as shown in fig. 9, the rotor 302 is a special-shaped rotary member, a shaft hole 305 in rotation fit with a rotor shaft 304 in the middle of the eccentric sinking groove 303 is provided in the middle of the rotor 302, the rotor 302 includes a fan-shaped portion 312 and a rectangular portion 322, the eccentric sinking groove 303 is circular, the arc edges of the fan-shaped portion 312 and the rectangular portion 322 are matched with the circumferential edge of the eccentric sinking groove 303, and the circle center of the circle where the arc edges of the fan-shaped portion 312 and the rectangular portion 322 are located is concentric with the rotor shaft 304; the rectangular part 322 is provided with explosion propagation holes 310 which can correspond to the fire propagation holes 4, and the fan-shaped part 312 is a solid body; the outer surface of the eccentric countersink 303 is provided with a safety pin 311, and the safety pin 311 is disposed on the straight side of the rectangular portion 322 and near the outer edge of the rotor seat 301, so that the explosion propagation hole 310 coincides with the axis of the fire propagation hole 4 after the rotor 302 rotates. When the rotor seat is processed, a safety pin hole matched with the safety pin is processed on the bottom surface of the eccentric sinking groove. The weight of the fan-shaped part is larger than that of the rectangular part, and the centrifugal pin can overcome the outward movement of the spring under the action of centrifugal force after the fuze exits the muzzle, so that the rotor is released; the fan-shaped part of the rotor can be thrown to the edge of the rotor seat under the action of centrifugal force until the side surface of the fan-shaped part contacts with the safety pin, so that the explosion transfer hole of the rectangular part is opposite to the fire transfer hole, and the explosion transfer hole and the fire transfer hole can be used for igniting the explosion transfer tube.
In a specific design, as shown in fig. 6, an outer hole of the pin hole 309 is in threaded fit with the pin cover 308, a step is arranged in the middle of the centrifugal pin 306, and one end of the spring 307 abuts against the step surface, and the other end abuts against the bottom surface of the pin cover 308; the pin hole 309 is obliquely arranged at one side of the eccentric sinking groove 303, the orifice of the pin hole 309 is obliquely upward, and the lower part of the bottom of the pin hole 309 is arranged below the eccentric sinking groove 303. By adopting the structure, the centrifugal pin can be obliquely placed, only one side of the bottom of the centrifugal pin is exposed in the eccentric sinking groove, and a clamping groove matched with the centrifugal pin is correspondingly processed at the bottom of the rotor. The inclined centrifugal pin is subjected to larger recoil force during the launching, so that the spring cannot be overcome to move outwards, the centrifugal pin limits the movement of the rotor, and the safety of the fuze in the bore is ensured. After the muzzle is discharged, the centrifugal force of the centrifugal pin is increased in the rotating process, the spring can be overcome to move outwards, the rotor is released, and under the action of the centrifugal force, the explosion propagation hole of the rotor is aligned with the ignition hole, so that the safety is relieved, and the purpose of igniting and detonating is achieved.
Further optimizing the above technical solution, as shown in fig. 5, the top of the rotor seat 301 and the top of the rotor 302 are provided with cover plates 312, and the central holes of the cover plates 312 correspond to the fire transmission holes 4; the cover plate 312 is connected with the rotor seat 301 through a screw 313, a detonator 5 is arranged in a central hole of the cover plate 312, and the detonator 5 is arranged right above a fire transmission hole 4 in the middle of the rotor seat 301; the cover plate 312 and the rotor base 301 are connected to the delay mechanism 200 by a limiting pin 314. The cover plate is of a step structure with a large upper part and a small lower part, and the upper bench circle of the cover plate is arranged in the central hole of the base plate of the delay mechanism. After the double-way ignition mechanism of the fuze ignites, the detonator can be ignited firstly after passing through the delay powder disk, and after the fuze exits from the muzzle, the rotor rotates until the explosion transfer hole is opposite to the fire transfer hole, so that the explosion transfer pipe can be ignited through the explosion transfer hole on the rotor and the fire transfer hole on the rotor seat.
In conclusion, the utility model has the advantages of reasonable structural design, low misfire rate, safety and reliability, and the fuse adopts double-path ignition delay flame-proof, so that the reliability and safety of the fuse are further improved, and the size of broken pieces is controlled. By improving the structure of the medicine tray, the influence of pressure generated by simultaneous ignition of the double fire caps on the medicine tray and other initiating explosive devices is avoided, initiating explosive devices in the medicine tray are canceled, the transfer of fire is more stable, and through experimental verification, the improved double-path ignition flame-proof fuze can effectively reduce the rate of the blind fire to below 0.1%; the horizontal rotor explosion-proof scheme is selected, and explosion-proof test verification is carried out for more than 1000 times, so that the reliability of the explosion-proof mechanism is ensured; the fuze body is replaced by high-strength aluminum, so that fragments after explosion of the bomb are greatly reduced, and the maximum fragment quality can reach not more than 14 g through the explosion test, so that the problem of large fragments is solved.
In the foregoing description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed above.
Claims (10)
1. The utility model provides a hail suppression and precipitation bullet double-circuit fire flame proof fuse which characterized in that: the explosive fuse comprises a fuse body, a double-way ignition mechanism, a time delay mechanism, an explosion-proof mechanism and a detonating tube, wherein the fuse body is a hollow shell with one end blocked, the double-way ignition mechanism is arranged at the front part of an inner cavity of the fuse body, the time delay mechanism is arranged between the double-way ignition mechanism and the explosion-proof mechanism, and the detonating tube is arranged at the rear end of the fuse body and is used for detonating an explosive body; the explosion-proof mechanism comprises a horizontal rotor and a rotor seat, wherein a fire transmission hole is formed in the middle of the rotor seat, and a rotor limiting centrifugal mechanism is arranged in the rotor seat and used for limiting the rotor in a muzzle, blocking the fire transmission hole, releasing the limitation of the rotor after the explosion-proof mechanism exits the muzzle and exposing the fire transmission hole.
2. The hail-suppression and rain-enhancement bomb double-way ignition flame-proof fuze according to claim 1, characterized in that: the double-way ignition mechanism comprises an ignition body, a side firing pin and a fire cap, wherein two ignition holes are formed in the ignition body, the ignition holes are through holes penetrating through the ignition body up and down, the needle tip of the side firing pin is upwards arranged at the bottom of the ignition holes, the side firing pin is sleeved with a spring, the fire cap is arranged at the top of the spring, and a fire cap screw plug is screwed at the top orifice of the ignition hole; the bottom opening of the ignition hole corresponds to a fire transmission channel of the delay mechanism; the side bottom of the ignition body is provided with a pressure relief hole communicated with the ignition hole.
3. The hail-suppression and rain-enhancement bomb double-way ignition flame-proof fuze according to claim 2, characterized in that: the time delay mechanism comprises a medicine tray and an upper paper pad at the upper end and a lower paper pad at the lower end of the medicine tray, wherein the upper surface and the lower surface of the medicine tray and the inner part of the medicine tray are respectively provided with a fire transmission channel capable of being filled with time delay medicines, the bottom of the medicine tray is provided with a base plate, the upper end of the fire transmission channel in the medicine tray is communicated with the upper paper pad and the fire transmission holes of the two-way ignition mechanism, the lower end of the fire transmission channel in the medicine tray is communicated with the lower paper pad and the fire transmission holes of the base plate, and the center position of the bottom of the medicine tray is provided with a medicine groove which is used for pressing the time delay medicines and is communicated with the fire transmission channel and is used for igniting the explosion-proof mechanism below the medicine tray; the medicine tray, the upper paper pad, the lower paper pad and the backing plate are connected with the double-path ignition mechanism through the positioning structure.
4. The hail-suppression and rain-enhancement bomb double-way ignition flame-proof fuze according to claim 3, characterized in that: the positioning structure comprises a plurality of positioning pins, the positioning pins are radially arranged around a fire transmission hole in the middle of the base plate, the lower ends of the positioning pins are inserted into a mounting hole in the top of the base plate through an adhesive, and the upper ends of the positioning pins are inserted into a bottom positioning hole of the double-path ignition mechanism.
5. The hail-suppression and rain-enhancement bomb double-way ignition flame-proof fuze according to claim 3, characterized in that: the upper surface and the lower surface of the medicine tray are respectively provided with an annular fire transmission channel, and the inside of the medicine tray is provided with a middle fire transmission channel communicated with the upper annular fire transmission channel and the lower annular fire transmission channel; the medicine groove is communicated with the annular fire transmission channel through the branch groove.
6. The hail-suppression and rain-enhancement bomb double-way ignition flame-proof fuze according to claim 3, characterized in that: the thickness of the medicine tray is 7mm; the ignition bodies of the fuze body, the medicine tray, the backing plate and the two-way ignition mechanism are all made of 2A12 aluminum alloy materials; the double-path ignition mechanism and the delay mechanism are pressed together by a loading machine with the pressure of 4.5+/-0.5 Mpa.
7. The hail-suppression and rain-enhancement bomb double-way ignition flame-proof fuze according to claim 1, characterized in that: an eccentric sinking groove for placing the rotor is formed in one side of the rotor seat, and the middle rotor of the eccentric sinking groove is in running fit; the middle part of the rotor seat is provided with a fire transmission hole which penetrates through the bottom of the eccentric sinking groove vertically; the rotor limiting centrifugal mechanism is arranged on the side face of the rotor seat and comprises a centrifugal pin, a spring and a pin cover, a pin hole is formed in the side face of the rotor seat, the pin hole is opposite to the rotor, and the pin hole is coplanar with the middle longitudinal section of the eccentric sinking groove and coincides with the diameter of the rotor seat; the centrifugal pin is radially arranged in the pin hole, an opening facing the eccentric sinking groove is formed in the bottom of the pin hole, and the bottom of the centrifugal pin extends to the outside of the opening to be matched with the clamping groove at the bottom of the rotor; the spring is arranged between the centrifugal pin and the pin cover, and the pin cover is arranged in the outer side orifice of the pin hole.
8. The hail-suppression and rain-enhancement bomb double-way ignition flame-proof fuze according to claim 7, characterized in that: the rotor is a special-shaped rotary member, a shaft hole in rotation fit with a rotor shaft in the middle of the eccentric sinking groove is formed in the middle of the rotor, the rotor comprises a fan-shaped portion and a rectangular portion, the eccentric sinking groove is circular, the arc-shaped edges of the fan-shaped portion and the rectangular portion are matched with the circumferential edge of the eccentric sinking groove, and the circle center of the circle where the arc-shaped edges of the fan-shaped portion and the rectangular portion are located is concentric with the rotor shaft; the rectangular part is provided with explosion propagation holes which can correspond to the fire propagation holes, and the fan-shaped part is a solid; and a safety pin is arranged on the outer side surface of the eccentric sinking groove, is arranged on the straight side of the rectangular part and is close to the outer side edge of the rotor seat, and is used for enabling the axis of the explosion transmission hole to coincide with the axis of the fire transmission hole after the rotor rotates.
9. The hail-suppression and rain-enhancement bomb double-way ignition flame-proof fuze according to claim 7, characterized in that: the rotor seat and the top of the rotor are provided with cover plates, and the central holes of the cover plates correspond to the fire transmission holes; the cover plate is connected with the rotor seat through a screw, a detonator is arranged in a central hole of the cover plate, and the detonator is arranged right above a fire transmission hole in the middle of the rotor seat; the cover plate and the rotor seat are connected with the time delay mechanism.
10. The hail suppression and rain enhancement bomb double-way firing flame-proof fuze according to any one of claims 1-9, wherein: the opening end of the fuze body is connected with the connecting screw cover, and a through hole tightly matched with the detonating tube is arranged in the middle of the connecting screw cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311058829.2A CN116839425A (en) | 2023-08-22 | 2023-08-22 | Hail-suppression and rain-enhancement bomb double-path ignition flame-proof fuze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311058829.2A CN116839425A (en) | 2023-08-22 | 2023-08-22 | Hail-suppression and rain-enhancement bomb double-path ignition flame-proof fuze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116839425A true CN116839425A (en) | 2023-10-03 |
Family
ID=88163714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311058829.2A Pending CN116839425A (en) | 2023-08-22 | 2023-08-22 | Hail-suppression and rain-enhancement bomb double-path ignition flame-proof fuze |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116839425A (en) |
-
2023
- 2023-08-22 CN CN202311058829.2A patent/CN116839425A/en active Pending
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