CN114440715A - Detonator heterogeneous charge structure booster - Google Patents
Detonator heterogeneous charge structure booster Download PDFInfo
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- CN114440715A CN114440715A CN202210252425.6A CN202210252425A CN114440715A CN 114440715 A CN114440715 A CN 114440715A CN 202210252425 A CN202210252425 A CN 202210252425A CN 114440715 A CN114440715 A CN 114440715A
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- booster
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
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Abstract
The invention discloses a booster with a fuse heterogeneous charge structure, which comprises two explosive charges made of different materials, a reinforcing cap and a booster shell. The center of the input end of the detonating tube adopts explosive charge with moderate sensitivity and less sensitivity dispersion (the sensitivity is close to but lower than that of the Chevron explosive), and the outer ring side and the lower part of the explosive charge adopt insensitive explosive such as poly-Oxyphene or poly-black benzene or low-cost explosive such as poly-black-14, poly-black-2, poly-black-6 or dull black-5, etc. to cover and coat. On the premise of ensuring reliable detonation action, the detonation tube can have better low-vulnerability characteristic or reduce the cost.
Description
Technical Field
The invention belongs to the fuse technology, and particularly relates to a detonator with a fuse heterogeneous charge structure, which is beneficial to realizing the characteristic of low vulnerability or low cost.
Background
The detonator booster has the function that the input end receives the detonation input of the detonator or the booster, and the detonation is output at the output end in a detonation mode after energy amplification to detonate the warhead. In order to enable the input end of the booster to have better detonation sensitivity and the output end of the booster to have higher output power, the traditional booster is realized by changing the filling density on the premise of a homogeneous charge structure, namely the filling density of the input end is lower, the filling density of the output end is higher, but the adjusting capability of the filling density on the input sensitivity and the output power is limited. In order to ensure the input sensitivity under the homogeneous charge structure, the detonator is likely to select allowable explosive with sensitivity close to the sensitivity of the specific flexor but with higher cost. Moreover, in order to enable the booster to be reliably detonated easily, the booster is generally provided with a detonating tube at the upper stage, and the detonating sequence of the structure not only increases the size of the fuze structure, but also increases the cost.
In order to deal with increasingly complex and severe battlefield environments, the fuze also has certain low vulnerability characteristics. For the design of a low-damage fuse, if the explosive is insensitive, the initiation sensitivity is reduced, and the reliability of the action of the fuse explosion sequence is difficult to guarantee; if the power of the detonator is increased, the explosion-proof safety of the detonator is also adversely affected and may be difficult to meet.
Disclosure of Invention
The invention aims to provide a detonator with a heterogeneous charge structure, which can enable a detonator to have low vulnerability or effectively reduce the production cost of the detonator according to specific application requirements on the premise of meeting the reliability of detonation.
The technical solution for realizing the purpose of the invention is as follows: a detonator heterogeneous charge structure booster tube comprises a first explosive charge, a second explosive charge, a reinforcing cap and a booster tube shell, wherein the booster tube charge adopts heterogeneous charges (two different types of explosives) on the premise of not changing the overall structure of a detonator, the second explosive charge is a revolving body, the center of the end surface of the second explosive charge is provided with a blind hole, the first explosive charge is pressed in the blind hole, the second explosive charge pressed with the first explosive charge is filled in the booster tube shell and is packaged through the reinforcing cap; the center of the input end of the booster is provided with a first explosive charge with moderate sensitivity and low sensitivity dispersion (the sensitivity of the first explosive charge is close to but lower than that of a super-flexor explosive such as poly-ao-9 or poly-black-14), and the outer side and the lower side of the input end, namely the output end, are coated with a second explosive charge (such as poly-black benzene, poly-ox benzene and the like) which is insensitive or has low cost (such as poly-black-14, poly-black-2, poly-black-6 or dull black-5 and the like). When the projectile is in a burning environment, the outer side and the lower side of the input end of the booster are insensitive explosives, namely the explosives at the output end are filled, so that the booster can not be accidentally detonated, the booster at the moment is safe, and the requirement of low vulnerability is met. And when the explosive charges on the outer side and the lower side of the input end, namely the output end explosive charges, namely the second explosive charges, adopt low-cost common explosives, the cost of the booster can be obviously reduced.
Further, the blind hole depth of the second explosive charge is less than two thirds of the height of the second explosive charge.
Compared with the prior art, the invention has the following remarkable advantages:
(1) the insensitive explosive is coated on the outer side of the explosive charge at the input end of the booster, so that the booster still keeps the original input sensitivity on the premise of realizing the low vulnerability characteristic.
(2) Most of the explosive charges in the booster are common explosives with lower cost, so that the cost of the booster is reduced.
(3) The heterogeneous explosive charging structure is equivalent to setting the explosive at the center of the explosive charging input end of the detonating tube, so that the structure of the detonating tube can be omitted under many conditions, the detonating sequence is simplified, the space of the detonator is saved, and the cost is further reduced.
Drawings
Fig. 1 is a structural schematic diagram of a detonator with a fuse heterogeneous charge structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly specified or limited, the terms "connected," "secured," and the like are to be construed broadly, e.g., "secured" may be fixedly connected, releasably connected, or integral; "connected" may be mechanically or electrically connected. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, the detonator heterogeneous charge structure booster comprises a first explosive charge 1, a second explosive charge 2, a reinforcing cap 3 and a booster shell 4. The first explosive charge 1 adopts an allowable booster which has moderate sensitivity (meets GJB2178 388 2178A-2020 & lt safety test method for booster explosive and GJB373B-2019 & lt safety design criteria for fuze), the sensitivity is close to but lower than that of super flexor), and an explosive with smaller sensitivity spread, such as poly-ao-9 or poly-black-14, is positioned at the center of the input end of the booster tube. And the second explosive charge 2 acts as the output end of the booster.
The difficulty of the invention is that when the charge design of the booster is carried out, the booster is required to have enough detonation reliability and low vulnerability or low cost under accidental stimulation environments such as burning and the like according to requirements. If the low vulnerability characteristic of the detonator, namely the booster, is realized by changing the structure of the detonator, the structure of the detonator becomes complex, and the design requirements of high reliability and safety of the detonator are difficult to meet. By adopting the heterogeneous explosive charging smart structure of the detonator disclosed by the invention, the low-vulnerability characteristic or the low-cost characteristic can be realized, and the problems of complex structure, increased volume, increased cost, reduced reliability and the like of the detonator are also avoided.
The first explosive charge 1 is a solid of revolution and is disposed centrally at the input end of the booster and is aligned with a disarmed detonator (not shown), the first explosive charge 1 being a moderately sensitive and less sensitive distributed explosive (close to but less sensitive than a Chevron explosive) such as Polyo-9 or PolyBlack-14, which helps the booster to be reliably detonated under the blast impact of the detonator. The diameter of the first explosive charge 1 is typically slightly larger than the diameter of the detonator, about 1.1 to 1.5 times the diameter of the detonator, but the height and diameter of the first explosive charge 1 are both smaller than the height and diameter of the second explosive charge 2.
The second explosive charge 2 is arranged in the explosion-conducting tube shell 4, the second explosive charge 2 consists of a third charge and a fourth charge from top to bottom, and the third charge and the fourth charge are both revolution bodies. The third powder charge is of a cylindrical structure, namely, a round hole is formed in the center of the third powder charge, the outer diameter of the third powder charge is equal to the diameter of the inner cavity of the reinforcing cap 3, the first explosive powder charge 1 is placed in the round hole in the center of the third powder charge, and the upper end face and the lower end face of the first explosive powder charge are respectively flush with the upper end face and the lower end face of the third powder charge. The fourth charge is of a cylindrical structure and is placed at the bottom of the inner cavity of the booster shell 4. The fourth explosive charge consists of a first cylinder and a second cylinder from top to bottom, the diameter of the second cylinder is larger than that of the first cylinder, the diameter of the first cylinder is the same as the outer diameter of the third explosive charge, and the first explosive charge 1 and the third explosive charge are placed on the fourth explosive charge. When the second explosive charge 2, namely the output end, adopts an insensitive explosive such as polyoxobenzene or polyblack benzene, the insensitive explosive such as polyoxobenzene or polyblack benzene covers the outer side of the first explosive charge 1 at the input end to resist accidental stimulation such as burning and the like, so that the low-vulnerability characteristic of the booster tube and the detonator is realized. When the second explosive charge 2 is a lower cost conventional explosive such as poly black-14, poly black-2, poly black-6 or dull black-5, it helps to reduce booster costs.
For example, the price of the poly black-14 is about 2.5 times of the price of the poly black-2, and the price of the HMX-based mixed explosive is about 20-30 times of the price of the hexogen-based mixed explosive. Taking a certain type of 37 mm-diameter artificial hail-suppression rain-enhancement bomb fuse as an example, if the non-input end part of the booster explosive, namely the explosive charge 2, is changed from poly black-14 to poly black-2, and the fuse charge per generation is calculated by 5 g, about 0.46 yuan is saved. If 100 thousands of hair are produced annually, about 46 ten thousand yuan is saved each year.
The components of the poly-black benzene explosive and the poly-o-benzene explosive are fluororubber, 1,3, 5-triamino-2, 4, 6-trinitrobenzene (TATB), hexogen or octogen. British mixed explosive ROWANEX3601 contains hexogen and 1,3, 5-triamino-2, 4, 6-trinitrobenzene, and Meijun mixed explosive PBXC03 contains octogen and 1,3, 5-triamino-2, 4, 6-trinitrobenzene, which shows that the hexogen and 1,3, 5-triamino-2, 4, 6-trinitrobenzene, and the octogen and 1,3, 5-triamino-2, 4, 6-trinitrobenzene are compatible. However, hexogen and octogen are symbiotic, so that hexogen and octogen are compatible. Namely, the poly-black benzene or poly-o-benzene is selected as the second explosive charge 2, which can meet the compatibility requirement between the first explosive charge 1 of the traditional detonator, such as poly-o-9 or poly-black-14, and the compatibility between the common low-cost heterogeneous charge structure used hexogen-based mixed explosive and the octogen-based mixed explosive and between different types of hexogen-based mixed explosives is compatible.
The input end of the booster is provided with a reinforcing cap 3, the reinforcing cap 3 is of a thin-wall cylindrical structure, and the side wall of the reinforcing cap 3 penetrates through the third explosive and extends downwards into the fourth explosive. The bottom in the cylinder on the reinforcing cap 3 is placed on the upper end face of the first explosive charge 1, the outer end face of the reinforcing cap is flush or basically flush with the upper end face of the booster shell 4, and the height of the reinforcing cap 3 is larger than that of the first explosive charge 1, so that the structural packaging of the booster tube is realized.
When the fuse is relieved, the detonator is aligned with the first explosive charge 1 at the input end of the booster. The first explosive charge 1 is caused to detonate upon the predetermined explosive action of the detonator, thereby detonating the second explosive charge 2 and further the warhead.
When the detonator detonating tube with the insensitive explosive charges arranged on the outer side is in an accidental stimulation environment such as roasting, and the like, the second insensitive explosive charges 2 are coated on the outer side of the first explosive charges 1, so that the detonator detonating tube does not have a detonation effect, can realize the low-vulnerability characteristic of the detonator, and does not detonate a warhead.
The technical points of the invention lie in that the detonator is filled with heterogeneous filling structure, under the condition of not changing the detonator and the general structure of the detonator, the reliability of the detonator is improved, the detonator explosion sequence structure is simplified, and the detonator realizes low-vulnerability characteristic or reduces the detonator cost.
Claims (9)
1. The utility model provides a detonator heterogeneous charge structure booster which characterized in that: the explosive comprises a first explosive charge (1), a second explosive charge (2), a reinforcing cap (3) and an explosion-transfer tube shell (4), wherein the second explosive charge (2) is a revolving body, a blind hole is formed in the center of the end face of the revolving body, the first explosive charge (1) is pressed in the blind hole, the second explosive charge (2) pressed with the first explosive charge (1) is filled in the explosion-transfer tube shell (4), and the second explosive charge (2) is packaged through the reinforcing cap (3); the first explosive charge (1) is used as an input end of external detonation energy, and the sensitivity of the first explosive charge is close to but lower than that of the super-flexor explosive; the second explosive charge (2) is used as the output end of the booster.
2. The detonator heterogeneous charge structure booster of claim 1, wherein: the depth of the blind hole of the second explosive charge (2) is less than two thirds of the height of the second explosive charge (2).
3. The detonator heterogeneous charge structure booster of claim 2, wherein: the second explosive charge (2) adopts insensitive explosive to meet the requirement of low vulnerability of the booster.
4. The detonator heterogeneous charge structure booster of claim 3, wherein: the second explosive charge (2) adopts polyoxobenzene or poly-black benzene.
5. The detonator heterogeneous charge structure booster of claim 2, wherein: the second explosive charge (2) adopts common explosive to meet the low-cost requirement of the booster.
6. The detonator heterogeneous charge structure booster of claim 5, wherein: the second explosive charge (2) adopts poly black-14, poly black-2, poly black-6 or dull black-5.
7. The detonator heterogeneous charge structure booster of claim 1, wherein: the first explosive charge (1) adopts poly-ao-9 or poly-black-14.
8. The detonator heterogeneous charge structure booster of claim 1, wherein: the diameter of the first explosive charge (1) is 1.1-1.5 times of the diameter of the corresponding detonating cap in the fuse.
9. The detonator heterogeneous charge structure booster of claim 1, wherein: the height of the reinforcing cap (3) is greater than the height of the first explosive charge (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210252425.6A CN114440715A (en) | 2022-03-15 | 2022-03-15 | Detonator heterogeneous charge structure booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210252425.6A CN114440715A (en) | 2022-03-15 | 2022-03-15 | Detonator heterogeneous charge structure booster |
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| Publication Number | Publication Date |
|---|---|
| CN114440715A true CN114440715A (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210252425.6A Pending CN114440715A (en) | 2022-03-15 | 2022-03-15 | Detonator heterogeneous charge structure booster |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5233929A (en) * | 1992-05-14 | 1993-08-10 | The United States Of America As Represented By The Secretary Of The Navy | Booster explosive rings |
| US5243916A (en) * | 1991-06-26 | 1993-09-14 | Societe Nationale Des Poudres Et Explosifs | Explosive munition component of low vulnerability, comprising a dual composition explosive charge and process for obtaining a fragmentation effect |
| US6487971B1 (en) * | 1968-10-12 | 2002-12-03 | The United States Of America As Represented By The Secretary Of The Navy | Light initiated detonator |
| US6508177B1 (en) * | 1999-09-13 | 2003-01-21 | The Ensign-Bickford Company | Explosives with embedded bodies |
| CN103193556A (en) * | 2012-01-06 | 2013-07-10 | 四川雅化实业集团股份有限公司 | High-energy safe composite explosive |
| US9097503B1 (en) * | 2012-12-20 | 2015-08-04 | Los Alamos National Security, Llc | Munitions having an insensitive detonator system for initiating large failure diameter explosives |
| CN113865449A (en) * | 2021-09-22 | 2021-12-31 | 南京理工大学 | Mechanical trigger fuse at bottom of grenade of line chamber |
-
2022
- 2022-03-15 CN CN202210252425.6A patent/CN114440715A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6487971B1 (en) * | 1968-10-12 | 2002-12-03 | The United States Of America As Represented By The Secretary Of The Navy | Light initiated detonator |
| US5243916A (en) * | 1991-06-26 | 1993-09-14 | Societe Nationale Des Poudres Et Explosifs | Explosive munition component of low vulnerability, comprising a dual composition explosive charge and process for obtaining a fragmentation effect |
| US5233929A (en) * | 1992-05-14 | 1993-08-10 | The United States Of America As Represented By The Secretary Of The Navy | Booster explosive rings |
| US6508177B1 (en) * | 1999-09-13 | 2003-01-21 | The Ensign-Bickford Company | Explosives with embedded bodies |
| CN103193556A (en) * | 2012-01-06 | 2013-07-10 | 四川雅化实业集团股份有限公司 | High-energy safe composite explosive |
| US9097503B1 (en) * | 2012-12-20 | 2015-08-04 | Los Alamos National Security, Llc | Munitions having an insensitive detonator system for initiating large failure diameter explosives |
| CN113865449A (en) * | 2021-09-22 | 2021-12-31 | 南京理工大学 | Mechanical trigger fuse at bottom of grenade of line chamber |
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