CN109556468B - Large-caliber smoothbore explosive cartridge warhead mechanical trigger fuse - Google Patents
Large-caliber smoothbore explosive cartridge warhead mechanical trigger fuse Download PDFInfo
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- CN109556468B CN109556468B CN201811463502.2A CN201811463502A CN109556468B CN 109556468 B CN109556468 B CN 109556468B CN 201811463502 A CN201811463502 A CN 201811463502A CN 109556468 B CN109556468 B CN 109556468B
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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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- 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
- F42C15/34—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a large-caliber smoothbore explosive cartridge warhead mechanical trigger fuse which comprises a head trigger mechanism, a body, a sliding column, a recoil safety mechanism and an explosion transfer tube, wherein a horizontal lateral cavity is formed in the body along the horizontal direction of the body, a four-step through hole with the diameter being sequentially reduced and communicated with the lateral cavity is formed in the body from the top center to the bottom, a first two-step through hole communicated with the lateral cavity is formed in the body from the bottom center to the top, and a fifth through hole and a sixth through hole are sequentially formed in the body from bottom to top. A second-order through hole is eccentrically formed in the bottom surface of the body from bottom to top, the diameters of the second-order through hole are sequentially reduced, and the second-order through hole is communicated with the lateral cavity; the head triggering mechanism is located in the fourth-order through hole of the body, the sliding column is horizontally arranged in the lateral cavity of the body, the recoil safety mechanism is located in the second-order through hole of the body, the top of the recoil safety mechanism is inserted into the sliding column, and the booster is arranged in the first second-order through hole. The invention is used for solving the problems of reliability and safety of detonation of the explosive cartridge.
Description
Technical Field
The invention belongs to the fuze technology, and particularly relates to a mechanical trigger fuze for a bullet of a large-caliber smoothbore explosive gun.
Background
No literature on large bore smoothbore explosive cartridges is available. Historically, fuses of medium-diameter and large-diameter wire chamber explosive cartridges are almost all sensitive charge in-line explosion transfer mechanisms, do not meet the relevant requirements of GJB373A fuse safety design criteria, are low in safety and reliability, and are prone to premature explosion and early explosion.
Disclosure of Invention
The invention aims to provide a mechanical trigger fuse for a bullet head of a large-caliber smoothbore explosive cartridge, so as to solve the problems of reliability and safety of detonation of the explosive cartridge.
The technical solution for realizing the purpose of the invention is as follows: the utility model provides a heavy-calibre smoothbore explosion bullet warhead machinery triggers detonator, includes head trigger mechanism, body, traveller, recoil safety mechanism and booster, opens along its horizontal direction on the body has a horizontal side direction cavity, from body top surface center downwardly open have a diameter reduce in proper order and with the communicating fourth order through-hole of side direction cavity, the fourth order through-hole is first through-hole, second through-hole, third through-hole and fourth through-hole from the top down in proper order, the body from bottom surface center upwardly open have one with the communicating first second order through-hole of side direction cavity, be fifth through-hole and sixth through-hole from bottom to top in proper order. A second-order through hole is eccentrically formed in the bottom surface of the body from bottom to top, the diameters of the second-order through hole are sequentially reduced, and the second-order through hole is communicated with the lateral cavity; the head triggering mechanism is located in the fourth-order through hole of the body, the sliding column is horizontally arranged in the lateral cavity of the body, the recoil safety mechanism is located in the second-order through hole of the body, the top of the recoil safety mechanism is inserted into the sliding column, and the booster is arranged in the first second-order through hole.
The lateral cavity is a second-order blind hole which is formed inwards from the side wall, a sliding column is arranged in the lateral cavity, and the lateral cavity and the sliding column are tightly matched; the sliding column and the body are in clearance fit and used for forming damping during outward movement of the sliding column, and explosion-proof safety, delay relief and chamber touching safety are achieved.
The lateral cavity is a three-order through hole with the diameter reduced from the side wall to the inside, sealing grease is coated between the outer cylindrical surface of the sliding column and the lateral cavity wall on the body, and the three-order through hole has a gas damping effect.
Compared with the prior art, the invention has the remarkable advantages that: (1) the head triggering mechanism can be used for triggering fuses of large-caliber bullet and small-caliber bullet, and can effectively solve the contradiction between falling safety and triggering sensitivity, ground rubbing explosion and large attack angle ignition reliability.
(2) The fuse intermediate structure can realize explosion-proof safety, delay relief and chamber contact safety, wherein the delay relief adopts a gas damping principle, and the chamber contact safety is mainly realized by radial restraint provided by a cartridge case and the inner wall of a barrel.
Drawings
Fig. 1 is a schematic structural diagram of a mechanical trigger fuse of a bullet of a large-caliber smoothbore explosive gun.
Fig. 2 is a second structural schematic diagram of the bullet head mechanical trigger fuse of the large-caliber smoothbore explosive gun bullet of the invention.
Fig. 3 is a schematic view of the present invention installed in cooperation with the cartridge case 9 and the inner wall of the barrel.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
As shown in fig. 1, a mechanical trigger fuse for a bullet of a large-caliber smoothbore explosive cartridge comprises a head trigger mechanism, a body 2, a sliding column 5, a recoil safety mechanism and an explosion transfer tube 6, wherein a horizontal lateral chamber is formed in the body 2 along the horizontal direction of the body, a fourth-order through hole is formed downwards from the center of the top surface of the body 2, the diameter of the fourth-order through hole is sequentially reduced, the fourth-order through hole is communicated with the lateral chamber, the first through hole, the second through hole, the third through hole and the fourth through hole are sequentially formed downwards from the top surface of the body, a first second-order through hole communicated with the lateral chamber is formed upwards from the center of the bottom surface of the body 2, and the fifth through hole and the sixth through hole are sequentially formed from. The bottom surface of the body 2 is eccentrically provided with a second-order through hole from bottom to top, the diameter of the second-order through hole is sequentially reduced, and the second-order through hole is communicated with the lateral cavity. The head triggering mechanism is located in a fourth-order through hole of the body 2, the sliding column 5 is horizontally arranged in a lateral cavity of the body 2, the recoil safety mechanism is located in a second-order through hole of the body 2, the top of the recoil safety mechanism is inserted into the sliding column 5, and the booster 6 is arranged in the first second-order through hole.
The head triggering mechanism comprises a firing pin 1 and an energy-gathering output type acupuncture detonator 3. The firing pin 1 is flat, the energy-gathering output type acupuncture detonator 3 is riveted in a third through hole of the body 2, and the top surface is limited by closing up. The top surface of the firing pin 1 is lower than the top surface of the body 2, the firing pin 1 is riveted in the second through hole, so that the needle point of the firing pin 1 is aligned with the center of the top surface of the energy-gathering output type acupuncture detonator 3, and the side wall of the firing pin 1 is thicker, so that the firing pin 1 has enough axial strength. The head triggering mechanism can be used for triggering fuses of large-caliber bullet heads and small-caliber bullet heads, and can solve the contradiction between falling safety and triggering sensitivity, ground rubbing explosion and large attack angle ignition reliability. The energy-gathering output type acupuncture detonator 3 is used for improving the capability of detonating the booster in a long distance due to the adoption of the sliding column type explosion-proof piece. The shape design of the fuse head needs to consider the aspects of air resistance, combination with a cartridge case, falling safety, ground wiping action, bounce prevention and the like.
The sliding column 5 is in a second-order stepped shaft shape, the diameter of the sliding column is large, and a circle of outer ring grooves are formed in the shaft body with the large diameter along the radial direction of the shaft body and used for being matched with a recoil safety mechanism.
The recoil safety mechanism comprises a safety pin 4, a safety piece 7 and a bracket 8, wherein the safety pin 4, the safety piece 7 and the bracket 8 are all located in the second-order through hole, the safety pin 4 extends into an outer ring groove of the sliding column 5, the bracket 8 is located below the safety pin 4, and the safety piece 7 is arranged between the safety pin 4 and the bracket 8.
The lateral cavity is a second-order blind hole formed inwards from the side wall, a sliding column 5 is arranged in the lateral cavity, and the lateral cavity and the sliding column are tightly matched. The sliding column 5 is matched with the body 2, so that explosion-proof safety, delay relief and chamber contact safety can be realized, wherein the delay relief adopts a gas damping principle, and the chamber contact safety is mainly realized by radial restraint provided by the cartridge case 9 and the inner wall of the barrel (as shown in figure 3). The slide column 5 adopts a step-shaped design, so that the slide column can be reliably thrown out from the loading end in a rotating state. The annular gap between the spool 5 and the lateral chamber on the body 2 is small to provide damping during outward movement of the spool.
The lateral cavity is a three-order through hole with the diameter reduced from the side wall to the inside, sealing grease with certain viscosity is coated between the outer cylindrical surface of the sliding column 5 and the lateral cavity wall on the body 2 (see figure 2), and a gas damping effect is formed by the three-order through hole. By adopting the structure principle, the damping effect is more consistent, and the fuse relief distance dispersion is reduced. The diameter of the sliding column 5 is slightly larger than that of the energy-gathering output type acupuncture detonator 3, and the explosion-proof performance is realized by adopting a material with better explosion-proof performance, such as copper alloy or stainless steel. The energy-gathering output type acupuncture detonator 3 can realize reliable booster explosion under the condition that the booster explosion distance exceeds the diameter of the detonator.
Normally, the safety pin 4 locks the sliding column 5 at the explosion-proof position. During launching, the safety pin 4 in the backseat safety mechanism is backseat the shearing safety piece 7, and the backseat safety of the sliding column 5 is relieved. Before the shot is taken out of the chamber, the sliding column 5 realizes chamber touching safety by radial restraint provided by the shell 9 and the inner wall of the barrel, after the shot is taken out of the chamber and the rotating speed is high to a certain degree, the sliding column 5 gradually and radially breaks away from the detonator under the centrifugal action and the air damping action, the explosion transfer channel is opened, and the detonator is in a state to be triggered. The radial movement of the spool 5 under the influence of air damping is the fuse delay arming process. After the bullet hits the target, the firing pin 1 strikes the energy-gathering output type acupuncture detonator 3 under the action of impact, the energy-gathering output type acupuncture detonator 3 is ignited and detonates the booster, and then the bullet is detonated.
If the sliding column 5 is not in the assembling state but cannot release the insurance accidentally, the energy-gathering output type acupuncture detonator 3 is ignited after the bullet hits a target or falls to the ground, and the fuse is in the fire-insulated state, so that the safety of explosive treatment of the bullet is facilitated.
Claims (7)
1. The utility model provides a heavy-calibre smoothbore explosion bullet warhead machinery triggers detonator which characterized in that: the explosion-proof device comprises a head triggering mechanism, a body (2), a sliding column (5), a recoil safety mechanism and an explosion transfer tube (6), wherein a horizontal lateral cavity is formed in the body (2) along the horizontal direction of the body, a fourth-order through hole with the diameter being sequentially reduced and communicated with the lateral cavity is formed downwards from the center of the top surface of the body (2), the fourth-order through hole is sequentially provided with a first through hole, a second through hole, a third through hole and a fourth through hole from top to bottom, and a first second-order through hole communicated with the lateral cavity is formed upwards from the center of the bottom surface of the body (2) and sequentially provided with a fifth through hole and a sixth through hole from bottom to top; a second-order through hole is eccentrically formed in the bottom surface of the body (2) from bottom to top, the diameters of the second-order through hole are sequentially reduced, and the second-order through hole is communicated with the lateral cavity; the head triggering mechanism is located in a fourth-order through hole of the body (2), the sliding column (5) is horizontally laid in a lateral cavity of the body (2), the recoil safety mechanism is located in a second-order through hole of the body (2), the top of the recoil safety mechanism is inserted into the sliding column (5), and the booster tube (6) is arranged in the first second-order through hole.
2. The large bore smoothbore explosive cartridge warhead mechanical trigger fuse of claim 1, wherein: the head triggering mechanism comprises a firing pin (1) and an energy-gathering output type acupuncture detonator (3), the firing pin (1) is flat, the energy-gathering output type acupuncture detonator (3) is riveted in a third through hole of the body (2), and the top surface is limited by closing up.
3. The large bore smoothbore explosive cartridge warhead mechanical trigger fuse of claim 2, wherein: the top surface of the firing pin (1) is lower than the top surface of the body (2), and the firing pin (1) is riveted in the second through hole, so that the needle point of the firing pin (1) is aligned with the center of the top surface of the energy-gathering output type acupuncture detonator (3).
4. The large bore smoothbore explosive cartridge warhead mechanical trigger fuse of claim 1, wherein: the sliding column (5) is in a second-order stepped shaft shape, the diameter of the sliding column positioned on the outer side is large, and a circle of outer ring groove is formed in the shaft body with the large diameter along the radial direction of the shaft body and is used for being matched with a recoil safety mechanism.
5. The large bore smoothbore explosive cartridge warhead mechanical trigger fuse of claim 4, wherein: the recoil safety mechanism comprises a safety pin (4), a safety piece (7) and a bracket (8), wherein the safety pin (4), the safety piece (7) and the bracket (8) are all located in a second-order through hole, the safety pin (4) extends into an outer ring groove of the sliding column (5), the bracket (8) is located below the safety pin (4), and the safety piece (7) is arranged between the safety pin (4) and the bracket (8).
6. The large bore smoothbore explosive cartridge warhead mechanical trigger fuse of claim 5, wherein: the lateral cavity is a second-order blind hole which is formed inwards from the side wall, a sliding column (5) is arranged in the lateral cavity, and the lateral cavity and the sliding column are tightly matched; the sliding column (5) and the body (2) are in clearance fit and used for forming damping during outward movement of the sliding column, and explosion-proof safety, delay relief and chamber touching safety are achieved.
7. The large bore smoothbore explosive cartridge warhead mechanical trigger fuse of claim 5, wherein: the lateral cavity is a three-order through hole with the diameter reduced from the side wall to the inside, sealing grease is coated between the outer cylindrical surface of the sliding column (5) and the lateral cavity wall on the body (2), and the three-order through hole has a gas damping effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811463502.2A CN109556468B (en) | 2018-12-03 | 2018-12-03 | Large-caliber smoothbore explosive cartridge warhead mechanical trigger fuse |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811463502.2A CN109556468B (en) | 2018-12-03 | 2018-12-03 | Large-caliber smoothbore explosive cartridge warhead mechanical trigger fuse |
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| Publication Number | Publication Date |
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| CN109556468A CN109556468A (en) | 2019-04-02 |
| CN109556468B true CN109556468B (en) | 2020-11-20 |
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| CN201811463502.2A Active CN109556468B (en) | 2018-12-03 | 2018-12-03 | Large-caliber smoothbore explosive cartridge warhead mechanical trigger fuse |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082434B (en) * | 2020-08-19 | 2022-05-27 | 南京理工大学 | Electromechanical trigger fuse for bullet of aerial rotating rocket projectile |
| CN112985198B (en) * | 2021-04-02 | 2024-04-05 | 南京理工大学 | Fuze detonating tube with insensitive characteristic |
| CN113074593B (en) * | 2021-04-02 | 2024-04-05 | 南京理工大学 | Energy-gathering detonator with insensitive characteristic |
| CN113405414B (en) * | 2021-06-08 | 2022-05-20 | 南京理工大学 | Wedge plug reverse recovery mechanism of fuse rigid recoil safety mechanism |
| CN113405415B (en) * | 2021-06-09 | 2022-05-20 | 南京理工大学 | Rotary bullet detonator explosion-proof mechanism with recovery insurance and insensitive characteristic |
| CN113587749B (en) * | 2021-07-13 | 2023-05-30 | 南京理工大学 | Safety ignition fuze adopting space explosion-proof principle |
Citations (6)
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|---|---|---|---|---|
| US1689470A (en) * | 1925-02-20 | 1928-10-30 | Adelman Arthur | Bore safety device for fuses |
| US2838999A (en) * | 1954-04-27 | 1958-06-17 | Bombrini Parodi Delfino | Sensitive fuses |
| CN103256871A (en) * | 2013-05-06 | 2013-08-21 | 沈阳理工大学 | Centrifugal safety mechanism of fire extinguishing bomb fuze |
| CN104613828A (en) * | 2015-02-05 | 2015-05-13 | 北京理工大学 | Micro electro mechanical system (MEMS) centrifugal safety mechanism for rotating ammunition and safety method thereof |
| CN110972551B (en) * | 2014-08-13 | 2016-11-02 | 国营第三〇四厂 | Safety mechanism of electric pin pusher |
| CN107388908A (en) * | 2017-07-19 | 2017-11-24 | 中国人民解放军军械工程学院 | It is a kind of to ensure method and device safe in Small-Caliber Ammunition thorax |
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2018
- 2018-12-03 CN CN201811463502.2A patent/CN109556468B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1689470A (en) * | 1925-02-20 | 1928-10-30 | Adelman Arthur | Bore safety device for fuses |
| US2838999A (en) * | 1954-04-27 | 1958-06-17 | Bombrini Parodi Delfino | Sensitive fuses |
| CN103256871A (en) * | 2013-05-06 | 2013-08-21 | 沈阳理工大学 | Centrifugal safety mechanism of fire extinguishing bomb fuze |
| CN110972551B (en) * | 2014-08-13 | 2016-11-02 | 国营第三〇四厂 | Safety mechanism of electric pin pusher |
| CN104613828A (en) * | 2015-02-05 | 2015-05-13 | 北京理工大学 | Micro electro mechanical system (MEMS) centrifugal safety mechanism for rotating ammunition and safety method thereof |
| CN107388908A (en) * | 2017-07-19 | 2017-11-24 | 中国人民解放军军械工程学院 | It is a kind of to ensure method and device safe in Small-Caliber Ammunition thorax |
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| CN109556468A (en) | 2019-04-02 |
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