CN114136159A - Multi-way inputting acupuncture cap for credit - Google Patents
Multi-way inputting acupuncture cap for credit Download PDFInfo
- Publication number
- CN114136159A CN114136159A CN202111389971.6A CN202111389971A CN114136159A CN 114136159 A CN114136159 A CN 114136159A CN 202111389971 A CN202111389971 A CN 202111389971A CN 114136159 A CN114136159 A CN 114136159A
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- CN
- China
- Prior art keywords
- cap
- acupuncture
- tube shell
- primer
- inert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001467 acupuncture Methods 0.000 title claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 29
- 239000003814 drug Substances 0.000 claims abstract description 24
- 238000010304 firing Methods 0.000 claims abstract description 19
- 230000035945 sensitivity Effects 0.000 claims abstract description 11
- 239000001989 lithium alloy Substances 0.000 claims description 8
- 229910001148 Al-Li alloy Inorganic materials 0.000 claims description 4
- 229910000733 Li alloy Inorganic materials 0.000 claims description 4
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 claims description 4
- GCICAPWZNUIIDV-UHFFFAOYSA-N lithium magnesium Chemical compound [Li].[Mg] GCICAPWZNUIIDV-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims 3
- 238000009527 percussion Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 150000004655 tetrazenes Chemical class 0.000 description 4
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-UHFFFAOYSA-N 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 208000012266 Needlestick injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/10—Percussion caps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Finger-Pressure Massage (AREA)
Abstract
The invention discloses a multi-directional input acupuncture cap for a fuse, which comprises a tube shell, a reinforcing cap, a primer and an inert medicament, wherein the tube shell is in a cylindrical shape, the closed end of the cylindrical tube is used as an input end, the open end is also used as an input end, and the center of the input end of the closed end is thinned to improve the sensitivity and facilitate acupuncture and percussion; strengthen the cap coaxial arrangement in the open end of tube, its top surface flushes with the top surface of tube, strengthens the center of cap and also does and make the processing of making thin, is convenient for the acupuncture percussion. The inside of the pipe shell and the inside of the reinforcing cap are provided with the primer mixture in a pressure-sharing manner, and the joint of the reinforcing cap and the pipe shell is provided with a thin layer of inert medicament to prevent the primer mixture from entering the joint of the reinforcing cap and the pipe shell and accidentally firing due to friction generated by relative displacement under the action of strong impact such as launching and the like, so that the launching stability of the fire cap and the launching safety of a fuse are influenced.
Description
Technical Field
The invention belongs to the technology of fuse explosion elements, and particularly relates to a multi-directional input needle puncturing fire cap for a fuse.
Background
Conventional fuze needle piercing caps are generally cylindrical in configuration. One end of the cylinder is a needling input end, and the other end is a flame output end. The fire cap has a multidirectional output function, namely, the bottom (output end) output, the mouth (input end) output and the side (radial) output are realized through the design that the structural strength of corresponding parts is relatively weakened, but a multidirectional input structure is not yet seen.
Since the fuse cavity is almost closed, the power of the fire cap to output the flame detonator after ignition is generally enough. From this perspective, if the impact of the input area size on firing reliability is not taken into account, the fuse cap size need not be too large, and generally below φ 3.85 × 3.7, even both φ 3 × 3 and φ 2.5 × 2.5 will suffice. In the case of small size, in order to simplify the structure and ensure stable quality, the fire cap almost uses one or one layer of mixed charge, namely, a composite medicament for needle-prick firing and flame output, such as traditional primer PA-101 (Stephen lead 53%, tetrazene 5%, barium nitrate 22%, antimony sulfide 10%, aluminum powder 10%), NOL-60 (Stephen lead 60%, tetrazene 5%, barium nitrate 25%, aluminum powder 10%) and a broad-fit primer formula (Stephen lead 50%, tetrazene 5%, barium nitrate 20%, antimony sulfide 25%).
In order to improve the firing reliability of the fuze or realize the processing safety of explosives, on the premise that the space of the inner cavity of the fuze is limited, the layout is difficult, and the explosion-proof safety is difficult to realize, for example, the same acupuncture cap is simultaneously adapted to different firing mechanisms in different directions and different directions (such as two ends or radial directions), for example, the acupuncture firing mechanism is triggered by impact, the acupuncture firing mechanism is triggered by inertia, the acupuncture firing mechanism is triggered by self-destruction, and the like, so that the problem of double-channel firing or even multi-channel firing is solved, and the function of multi-directional input of the ignition cap is required.
Disclosure of Invention
The invention aims to provide a multi-directional input needle fire cap for a fuse, which simplifies the structure of the fuse, reduces the occupied space, reduces the manufacturing cost of the fuse and improves the safety and the reliability of the fuse.
The technical solution for realizing the purpose of the invention is as follows: a multi-directional input acupuncture fire cap for a fuse comprises a tube shell, a reinforcing cap, a primer and an inert medicament, wherein the tube shell is in a barrel shape, the closed end of the barrel is used as an acupuncture input end, the open end of the barrel is also used as the acupuncture input end, and the center of the input end of the closed end is thinned to improve the sensitivity and facilitate acupuncture firing; the reinforcing cap is coaxially arranged at the open end in the tube shell, the top surface of the reinforcing cap is flush with the top surface of the tube shell, a medicine cavity is formed between the reinforcing cap and the tube shell, and the center of the reinforcing cap is also thinned, so that acupuncture firing is facilitated. The powder cavity is filled with propellant powder, and a thin layer of inert agent is filled at the joint of the reinforcing cap and the tube shell.
Further, in a second scheme, the multi-directional input pin firing cap for the fuze further comprises a second primer mixture 5, the second primer mixture 5 is filled in the medicine cavity and located below the primer mixture, and a layer of inert medicine is arranged between the first primer mixture and the second primer mixture. The mouth of the reinforcing cap 2 is located within the layer of inert medicament 4.
Further, the tube shell and the reinforcing cap are made of aluminum lithium alloy or magnesium lithium alloy.
Furthermore, the inert medicament is made of diatomite.
Furthermore, the side wall of the tube shell in the third scheme is thinned after being stretched, so that the sensitivity is improved, and the acupuncture firing is facilitated.
Compared with the prior art, the invention has the beneficial effects that: the fuse has multiple functions, simplifies the fuse structure, reduces the occupied space, makes the application of a multi-path igniter in the small-size fuse possible, reduces the manufacturing cost of the fuse and improves the safety and the reliability of the fuse.
Because of the limited internal cavity of the fuse, the output power of the fuse cap is generally sufficient. Modern fire caps usually use light metals with low density and low strength, such as pure aluminum, rustproof aluminum, etc., as the materials of the tube shell, the cover plate and the reinforced cap, and the output direction of the fire caps can meet the requirements without special limitation. The input end of the multi-directional input needle puncturing cap can be used as the output end. The output end of the fire cap also depends on its chamber constraints, i.e. on the corresponding fuze structure.
Drawings
Fig. 1 is a schematic axial section view of a first alternative structure of a multi-way input needle piercing cap for a fuse.
Fig. 2 is a schematic axial section view of a second alternative structure of a multi-way input needle piercing cap for a fuse.
Fig. 3 is a schematic axial section view of a third alternative structure of a multi-way input needle piercing cap for a fuse.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Example 1
With reference to fig. 1, the multidirectional input acupuncture cap for the fuze is a structure of the biaxial input acupuncture cap for the fuze, the output of the multidirectional input acupuncture cap structure is mainly in the axial direction and is assisted in the radial direction, the multidirectional input acupuncture cap structure comprises a tube shell 1, a reinforcing cap 2 (adopting a cover plate) and a primer 3, the tube shell 1 is in a cylindrical shape, the reinforcing cap 2 is coaxially arranged at an open end in the tube shell 1, the top surface of the reinforcing cap is flush with the top surface of the tube shell after closing up, a medicine cavity is formed between the top surface and the open end, the closed end of the tube shell 1 serves as an input end, the open end also serves as an input end, and the central parts of the tube shell 1 and the reinforcing cap 2 are both thinned, so that acupuncture firing is facilitated, and the acupuncture firing sensitivity is improved.
The primer mixture 3 adopts traditional primer mixture PA-101, NOL-60 and a eurytopic primer mixture formula and is filled in the medicine cavity.
Furthermore, the tube shell 1 and the reinforcing cap 2 are made of aluminum lithium alloy or magnesium lithium alloy, so that the weight is reduced, the stress generated by overload of the launching recoil seat is reduced, the central thinning part, namely the needling part, can be still thinner on the premise of ensuring the structural strength and the correctness, and the higher needling sensitivity is not influenced.
Example 2
With reference to fig. 2, the multi-directional input fire cap for a detonator of the present invention is another scheme of a structure of the double-axial input fire cap for a detonator, the output of which is mainly in the axial direction, and comprises a tube shell 1, a reinforcing cap 2, a primer 3, a second primer 5 and an inert medicament 4, wherein the tube shell 1 is in a cylindrical shape, the closed end of the tube shell 1 is used as an input end, the open end is also used as an input end, and the center of the input end of the closed end is thinned to improve the sensitivity and facilitate the needle-stick firing; strengthen cap 2 coaxial setting in the open end of tube, its top surface flushes with the top surface of tube, forms medicine chamber between the two, strengthens the center of cap 2 and also does the processing of making thin, is convenient for acupuncture percussion. The primer mix 3 and the second primer mix 5 are both filled in the medicine cavity, and the second primer mix 5 is positioned below the primer mix 3, and a layer of inert medicine 4 is arranged between the two. At the junction of the reinforcing cap 2 and the housing 1, a thin layer of inert agent 4 is provided, the thin layer of inert agent 4 being compatible with the primer 3 and the second primer 5 without affecting the sufficient power output of the primer. The mouth of the reinforcing cap 2 is located in the layer of inert agent 4 between primer mix 3 and second primer mix 5.
The primer mixture 3 and the second primer mixture 5 are filled in the cavity of the container by adopting traditional primer mixture PA-101, NOL-60 and a eurytopic primer mixture formula.
Furthermore, the tube shell 1 and the reinforcing cap 2 are made of aluminum lithium alloy or magnesium lithium alloy, so that the weight is reduced, the stress generated by overload of the launching recoil seat is reduced, the central thinning part, namely the needling part, can be still thinner on the premise of ensuring the structural strength and the correctness, and the higher needling sensitivity is not influenced.
Further, the inert agent 4 is made of diatomite. The scheme has better sealing performance than the first scheme shown in figure 1, wherein the inert medicament 4 is arranged in the cap opening area of the reinforcing cap 2, and can prevent the sensitive primer 3 and the second primer 5 from entering the joint of the reinforcing cap 2 and the tube shell 1, thereby preventing the primer 3 from being accidentally ignited due to friction caused by axial relative displacement under strong impact action such as launching and the like, influencing the launching stability of the fire cap, and further influencing the launching safety and the action reliability of the fuze.
Example 3
With reference to fig. 3, the multi-directional input acupuncture cap for the fuze of the invention is a radial input acupuncture cap structure for the fuze, the output of the multi-directional input acupuncture cap structure takes the radial direction as the main part and the axial direction as the auxiliary part, and comprises a tube shell 1, a reinforcing cap 2 (a cover plate can be adopted) and a primer 3, wherein the tube shell 1 is in a barrel shape, and the side wall of the tube shell 1 becomes thin after being stretched, so that the sensitivity is improved, and the acupuncture firing is convenient; the cover plate 2 is coaxially arranged at the open end inside the tube housing 1.
The side wall of the tube shell 1 is relatively thin (about 0.2 mm), and the primer 3 (fire cap charging) is prepared from a formula with high acupuncture sensitivity, such as NOL-130 (lead stevensite 40%, tetrazene 5%, lead nitride 20%, barium nitrate 20%, antimony sulfide 15%), and 100% of the ignition acupuncture sensitivity can reach 120 g cm.
The difficulty of the invention lies in the requirements of the characteristics, fire cap structure, principle and application of the initiating explosive device.
Claims (6)
1. The utility model provides a fuse is with multidirectional input needle acupuncture cap which characterized in that: the device comprises a tube shell (1), a reinforcing cap (2), a primer mix (3) and an inert medicament (4), wherein the tube shell (1) is cylindrical, the closed end of the tube shell (1) is used as a acupuncture input end, the open end is also used as the acupuncture input end, and the center of the input end of the closed end is thinned; the strengthening cap (2) is coaxially arranged in the tube shell (1), the top surface of the strengthening cap is flush with the top surface of the open end of the tube shell (1), and a medicine cavity is formed between the strengthening cap and the tube shell; the center of the reinforcing cap (2) is also thinned; the inner pressure of the medicine cavity is filled with a primer mixture (3), and the joint of the reinforcing cap (2) and the pipe shell (1) is coated with a thin layer of inert medicament (4).
2. The multi-directional input needle sparking cap for a detonator according to claim 1, wherein: the side wall of the tube shell (1) is thinned after being stretched, so that the sensitivity is improved, and the acupuncture firing is facilitated.
3. The multi-directional input needle sparking cap for a detonator according to claim 1, wherein: the primer mixture is characterized by further comprising a second primer mixture (5), wherein the second primer mixture (5) is filled in the medicine cavity and is positioned below the primer mixture (3), and a layer of inert medicament (4) is arranged between the second primer mixture and the primer mixture.
4. The multi-directional input needle fire cap for a detonator as set forth in claim 2, wherein: the mouth of the reinforcing cap (2) is located in the inert medicament (4) layer between the primer mix (3) and the second primer mix (5).
5. A multi-way entry needle piercing cap for a detonator as claimed in any one of claims 1, 2 or 3 wherein: the tube shell (1) and the reinforcing cap (2) are made of aluminum lithium alloy or magnesium lithium alloy.
6. A multi-way entry needle piercing cap for a detonator as claimed in any one of claims 1, 2 or 3 wherein: the inert medicament (4) is made of diatomite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111389971.6A CN114136159A (en) | 2021-11-22 | 2021-11-22 | Multi-way inputting acupuncture cap for credit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111389971.6A CN114136159A (en) | 2021-11-22 | 2021-11-22 | Multi-way inputting acupuncture cap for credit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114136159A true CN114136159A (en) | 2022-03-04 |
Family
ID=80390689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111389971.6A Pending CN114136159A (en) | 2021-11-22 | 2021-11-22 | Multi-way inputting acupuncture cap for credit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114136159A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB524860A (en) * | 1937-10-20 | 1940-08-16 | Ltd Co Formerly Skoda Works | Improvements in or relating to projectile fuzes |
| GB1122374A (en) * | 1964-10-10 | 1968-08-07 | Dynamit Nobel Ag | Improvements in or relating to percussion caps for percussion fuzes |
| GB1168684A (en) * | 1966-08-27 | 1969-10-29 | Dynamit Nobel Ag | Improvements in or relating to Primers Suitable for Use in Ammunition Cartridges. |
| RU2009103259A (en) * | 2009-02-03 | 2010-08-10 | Закрытое Акционерное общество "БИ-ВЕСТ" (RU) | CARTRIDGE IGNITION CAPSULE |
| US20160161237A1 (en) * | 2013-08-05 | 2016-06-09 | Ruag Ammotec Gmbh | Electronic Primer Cap for Small-Caliber Ammunition |
| CN113091539A (en) * | 2021-03-25 | 2021-07-09 | 南京理工大学 | Engineering blasting foundation detonator with improved safety |
| CN113175853A (en) * | 2021-04-16 | 2021-07-27 | 南京理工大学 | Double-axial flame input and single-direction output detonator |
-
2021
- 2021-11-22 CN CN202111389971.6A patent/CN114136159A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB524860A (en) * | 1937-10-20 | 1940-08-16 | Ltd Co Formerly Skoda Works | Improvements in or relating to projectile fuzes |
| GB1122374A (en) * | 1964-10-10 | 1968-08-07 | Dynamit Nobel Ag | Improvements in or relating to percussion caps for percussion fuzes |
| GB1168684A (en) * | 1966-08-27 | 1969-10-29 | Dynamit Nobel Ag | Improvements in or relating to Primers Suitable for Use in Ammunition Cartridges. |
| RU2009103259A (en) * | 2009-02-03 | 2010-08-10 | Закрытое Акционерное общество "БИ-ВЕСТ" (RU) | CARTRIDGE IGNITION CAPSULE |
| US20160161237A1 (en) * | 2013-08-05 | 2016-06-09 | Ruag Ammotec Gmbh | Electronic Primer Cap for Small-Caliber Ammunition |
| CN113091539A (en) * | 2021-03-25 | 2021-07-09 | 南京理工大学 | Engineering blasting foundation detonator with improved safety |
| CN113175853A (en) * | 2021-04-16 | 2021-07-27 | 南京理工大学 | Double-axial flame input and single-direction output detonator |
Non-Patent Citations (2)
| Title |
|---|
| 刘鹏等: "引信惯性球电触发开关方向敏感性" * |
| 吴腾芳等, 北京理工大学出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220304 |
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| RJ01 | Rejection of invention patent application after publication |