CN114216377B - Novel hot start structure - Google Patents
Novel hot start structure Download PDFInfo
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- CN114216377B CN114216377B CN202111585847.7A CN202111585847A CN114216377B CN 114216377 B CN114216377 B CN 114216377B CN 202111585847 A CN202111585847 A CN 202111585847A CN 114216377 B CN114216377 B CN 114216377B
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- shell
- sliding block
- induction
- charge
- hot start
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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
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
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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
- F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
- F42B12/76—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention discloses a novel hot start structure, which belongs to the technical field of initiating explosive devices and comprises an induction shell (1) and a shell (6) which are connected with each other, wherein an induction charge (2) is filled in the induction shell, a push rod (3) is arranged at the tail end of the induction charge (2), and the push rod (3) extends into the shell (6); the casing (6) is further provided with a first sliding block (9) and a second sliding block (10), the first sliding block (9) is provided with a first opening, a clamping pin (7) and a spring (8) are arranged in the first opening, the second sliding block (10) is provided with a second opening, and detonation charge (11) is filled in the second opening; a charging tube (12) is arranged at the tail part of the tube shell (6), the charging tube (12) penetrates out of the tube shell (6), and high explosive (13) is filled in the charging tube (12); the safety of the pressure relief device is improved by adopting a mechanical explosion-proof mode, and the safety of the pressure relief device is greatly improved.
Description
Technical Field
The invention relates to the technical field of initiating explosive devices, in particular to a novel hot start structure.
Background
The missile is an important striking means in the military field, and has larger killing power, wider equipment field and higher manufacturing cost along with the development of domestic and foreign missile technology. Therefore, the maintenance of stored and mounted missiles is also more important. In the case of fire in accidents or combat, the risk and hazard of casualties and combat readiness damage caused by the detonation of the missile at high temperature are relatively high, so that in the above-mentioned cases, it is important to make the missile warhead burn rather than explode.
At present, in the technical field, an engine shell is cut under the overload protection effect when a missile is in an abnormal state, so that a missile warhead burns without explosion. The action mechanism is large in size and unreliable in action.
In order to meet the domestic and overseas demands of the technology, the research of the pressure relief device is also actively carried out in the field of military initiating explosive devices in China. One of the difficulties of the pressure relief device is its control and safety.
Disclosure of Invention
The invention aims to provide a novel hot start structure so as to solve the problems.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the novel hot start structure comprises an induction shell and a shell which are connected with each other, wherein induction charge is filled in the induction shell, a push rod is arranged at the tail end of the induction charge, and the push rod extends into the shell; the casing is also provided with a first sliding block and a second sliding block, one end of the first sliding block, which is close to the push rod, is provided with a first opening, a bayonet lock and a spring are arranged in the first opening, the second sliding block is provided with a second opening, and the second opening is filled with detonating powder charge; a charging tube is arranged at the tail part of the tube shell, the charging tube penetrates out of the tube shell, and high explosive is filled in the charging tube;
as a preferable technical scheme: the first sliding block is of a wedge-shaped structure and moves in the tube shell through the push rod.
As a preferable technical scheme: the heat insulation pad is arranged at the joint of the induction shell and the shell, and the induction shell and the shell are fixedly connected through screws.
As a preferable technical scheme: the induction shell is made of stainless steel 17-4PH material, the bottom and the wall thickness of the induction shell are 2-4 mm, the internal aperture is 3-5 mm, and the bottom surface of the induction shell is of an arc-shaped structure so as to be attached to the missile engine shell, and the installation requirement in a limited space and the constraint requirement on internal charging are met.
As a preferable technical scheme: the induction charge is boron-potassium nitrate ignition charge, the mass is 0.15g-0.25g, the high-temperature-resistant and high-energy-resistant ignition charge can completely meet the high-temperature-resistant requirement, and the subsequent charge can be reliably ignited after combustion.
As a preferable technical scheme: the push rod is made of stainless steel 17-4PH material, and the diameter of the push rod is 4 mm-5 mm.
As a preferable technical scheme: the bayonet lock is made by stainless steel 17-4PH material, is cylindric, and cylinder end diameter is 2mm ~ 3mm, the cover is established on the cylinder the spring, and one end is wedge structure, can play the location effect after sliding in place.
As a preferable technical scheme: the first sliding block and the second sliding block are both made of stainless steel 17-4PH materials, sharp angles are arranged in the connecting direction of the first sliding block and the second sliding block, and the angle of each sharp angle is 20-30 degrees. When the angle is smaller than the range, the length of the sliding block is lengthened, which is not beneficial to realizing in a limited space; when the angle is larger than this range, the sliding resistance is excessively large, and the sliding reliability is lowered.
As a preferable technical scheme: the initiating explosive is pressed by lead azide initiating explosive, and the dosage is 0.1 g-0.2 g. The explosive quantity is 3 times of the limit explosive quantity, and meets the explosive initiation design requirement.
As a preferable technical scheme: the high explosive is hexanitrostilbene, and the dosage is 0.3 g-0.5 g. The explosive quantity is designed by considering the detonation margin, can reliably detonate the later stage, and can not cause other structural damages due to the fact that the explosive quantity is too large.
The pressure relief device is mechanically explosion-proof, and the starting mode is hot start, namely, the sensor separates the detonation part from the explosion-conducting part through the internal structure of the pressure relief device, and under the action of external temperature, the sensor acts and detonates the cutting rope to cut the engine shell, so that the purpose of pressure relief is achieved.
According to the novel hot start structure, on the premise of reliably completing cutting, the start mode is optimized, and the safety in a combat readiness state is improved; the invention divides and then combines the inductor and the explosion-propagation sequence part, the inductor shell is made of material with good heat transfer, the internal charge is insensitive ignition charge, and the medicament can bear the hanging temperature in the low-temperature section (hanging or flying) and reliably ensures no effect; at a high Wen Duanshi (fire environment), the ambient temperature is transmitted to the medicament through the sensor housing, the medicament can reliably fire, and the action of a subsequent explosion transmission sequence is realized; the invention adopts the isolation type inductor, and the whole device can not be detonated when not designed to act, thereby improving the safety of the combat readiness state; the device can reliably detonate the cutting cable at a specified temperature, and effectively cut the engine shell; the invention has great significance for the safety of carrier-borne and airborne missiles and has wide market prospect.
Compared with the prior art, the invention has the advantages that: the safety of the pressure relief device is improved by adopting a mechanical explosion-proof mode, and the safety of the pressure relief device is greatly improved; the charges in the hot starting structure are high-temperature resistant agents, so that the effect of the hot starting mechanism caused by the friction heat of air flow in the middle of missile hanging and flying is ensured; if the primary explosive and the high explosive in the hot starting mechanism are separated, and the primary explosive acts due to mechanical and mechanical environments, the energy of the primary explosive decays in the explosion elimination cavity, and the high explosive cannot be initiated to cause misoperation.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
in the figure: 1. an induction housing; 2. inductive charging; 3. a push rod; 4. a heat insulating mat; 5. a screw; 6. a housing; 61. an inductor interface; 62. a first bayonet lock slot; 63. the second bayonet lock draw-in groove, 64, slide block mounting position; 65. a drug loading pipe clamping groove; 7. a bayonet lock; 8. a spring; 9. a first slider; 10. a second slider; 11. detonating and charging; 12. a charge tube; 13. high explosive.
FIG. 2 is a schematic view of a housing structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first slider structure according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a second slider structure according to an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1, a novel hot start structure comprises an induction shell 1 and a shell 6 which are connected with each other, wherein an induction charge 2 is filled in the induction shell, a push rod 3 is arranged at the tail end of the induction charge 2, and the push rod 3 extends into the shell 6; the shell 6 is further provided with a first sliding block 9 and a second sliding block 10, a first opening is formed in one end, close to the push rod 3, of the first sliding block 9, a bayonet lock 7 and a spring 8 are arranged in the first opening, the second sliding block 10 is provided with a second opening, and detonation charge 11 is filled in the second opening; a charging tube 12 is arranged at the tail part of the tube shell 6, and the charging tube 12 penetrates through the tube shell 6; the second sliding block 10 can be pushed to move transversely by sliding in the shell 6 and extruding through the pushing rod 3, and the first sliding block 9 is positioned and fixed through the bayonet 7 after being in place; the second slide block 10 is transversely moved into position and then aligned with the charging tube 12; the explosive tube 12 is internally provided with a high explosive 13;
in the embodiment, a heat insulation pad 4 is arranged at the joint of the induction shell 1 and the shell 6, the heat insulation pad 4 is made of high silica heat insulation material, and the induction shell 1 and the shell 6 are fixedly connected through a screw 5;
in this embodiment, the structures of the first slider 9 and the second slider 10 are shown in fig. 3 and fig. 4, respectively, where the first slider 9 has a wedge structure and slides in the tube shell 6 through the push rod 3; the first sliding block 9 and the second sliding block 10 are both made of stainless steel 17-4PH materials, sharp angles are arranged in the connecting direction of the first sliding block and the second sliding block, and the angle of the sharp angles is the same and is 20 degrees; the first sliding block 9, the second sliding block 10 and the shell 6 have smooth surfaces and can slide smoothly;
in this embodiment, the size of the housing 6 is 20×10×6mm, and as shown in fig. 2, an inductor interface 61 for connecting with an inductor, a first bayonet lock groove 62 and a second bayonet lock groove 63 for installing the bayonet lock 7, a slider installation position 64 (i.e., a chute) for installing the first slider 9 and the second slider 10, and a loading tube clamp groove 65 for clamping the loading tube 12 are respectively provided in the housing 6 from left to right; the radian of the bottom surface of the induction shell 1 is R160, the size of an inner hole is 10 multiplied by phi 4.5, and the inner hole of the second sliding block 10 is 3 multiplied by phi 3; the high explosive 13 is hexanitrostilbestrol, the dosage is 0.5g, and the size is 15 x phi 3.5; the inductive charge is boron-potassium nitrate, and the dosage is 0.25g; the detonating charge 11 is lead azide, and the dosage is 0.2g;
when the preparation is carried out, firstly, an induction shell 1 is taken, an induction charge 2 is filled into the induction shell 1, the induction charge is pressed to be 4mm in height, after the charge is pressed, a push rod 3 is put into the induction shell 1, and a hexanitrostilbenoid is pressed into a charge column and is filled into a charge tube 12; loading lead azide into the second slide block 10 and flattening; sleeving a spring 8 on the bayonet lock 7, and loading the spring 8 into a bayonet lock hole of the first sliding block 9; the first sliding block 9 and the second sliding block 10 are respectively arranged at corresponding positions in the shell 6; a heat insulation pad 4 is arranged between the shell 6 and the induction shell 1, and is connected by a screw 5; the charging tube 12 is clamped in the shell 6 to finish the manufacture.
The inductor shell is made of a material with good heat transfer, the internal charge is an insensitive ignition charge, and the medicament can bear the hanging temperature in a low-temperature section (hanging or flying) and is reliably ensured to be inactive; at high Wen Duanshi (environment of catching fire), ambient temperature passes through the inductor casing and gives the medicament, and the medicament fires and promotes the push rod, and the push rod promotes the slider, realizes the action of detonating the sequence, detonates later stage cutting device, opens the warhead casing, releases the pressure that the medicament burns in the warhead to guarantee that the inside powder charge of warhead only burns and does not explode.
Example 2:
in the embodiment, a heat insulation pad 4 is arranged at the joint of the induction shell 1 and the shell 6, the heat insulation pad 4 is made of high silica heat insulation material, and the induction shell 1 and the shell 6 are fixedly connected through a screw 5;
in this embodiment, the first slider 9 has a wedge structure and slides in the tube shell 6 through the push rod 3; the first sliding block 9 and the second sliding block 10 are both made of stainless steel 17-4PH materials, sharp angles are arranged in the connecting direction of the first sliding block and the second sliding block, and the angle of the sharp angles is the same and is 30 degrees; the first sliding block 9, the second sliding block 10 and the shell (6) have smooth surface smoothness and can slide smoothly;
in the embodiment, the size of the shell 6 is 25 multiplied by 13 multiplied by 6mm, and a sliding groove corresponding to the sliding block is arranged in the shell; the radian of the bottom surface of the induction shell 1 is R160, the size of an inner hole is 12 multiplied by phi 4.5, and the inner hole of the second sliding block 10 is 4 multiplied by phi 3; the high explosive 13 is hexanitrostilbestrol, the dosage is 0.8g, and the size is 15 x phi 3.5; the inductive charge is boron-potassium nitrate, and the dosage is 0.3g; the detonating charge 11 is lead azide, and the dosage is 0.25g;
firstly, taking an induction shell 1, loading an induction charge 2 into the induction shell 1, pressing the induction charge to be 5mm in height, putting a push rod 3 into the induction shell 1 after the charge is pressed, and loading a hexanitrostilben column into a charge tube 12; loading lead azide into the second slide block 10 and flattening; sleeving a spring 8 on the bayonet lock 7, and loading the spring 8 into a bayonet lock hole of the first sliding block 9; the first sliding block 9 and the second sliding block 10 are respectively arranged at corresponding positions in the shell 6; a heat insulation pad 4 is arranged between the shell 6 and the induction shell 1, and is connected by a screw 5; the charging tube 12 is clamped in the shell 6 to finish the manufacture.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. A hot start structure, characterized in that: the induction type electric charging device comprises an induction shell (1) and a shell (6) which are connected with each other, wherein an induction charge (2) is filled in the induction shell, a push rod (3) is arranged at the tail end of the induction charge (2), and the push rod (3) extends into the shell (6); the casing (6) is further provided with a first sliding block (9) and a second sliding block (10), one end, close to the push rod (3), of the first sliding block (9) is provided with a first opening, a bayonet lock (7) and a spring (8) are arranged in the first opening, the second sliding block (10) is provided with a second opening, and detonation charge (11) is filled in the second opening; a charging tube (12) is arranged at the tail part of the shell (6), the charging tube (12) penetrates out of the shell (6), and high explosive (13) is filled in the charging tube (12); the first sliding block (9) is of a wedge-shaped structure and moves in the shell (6) through the push rod (3); the second sliding block (10) is of a wedge-shaped structure; the first sliding block (9) is pushed by the push rod (3), slides in the shell (6) and extrudes to push the second sliding block (10) to move transversely, and the first sliding block (9) is positioned and fixed by the clamping pin (7) after being in place; the second slider (10) is aligned with the charge tube (12) after being moved laterally into position.
2. A hot start architecture as set forth in claim 1, wherein: the heat insulation pad (4) is arranged at the joint of the induction shell (1) and the shell (6), and the induction shell (1) and the shell (6) are fixedly connected through the screw (5).
3. A hot start architecture as set forth in claim 1, wherein: the induction shell (1) is made of stainless steel 17-4PH material, the bottom and the wall thickness of the induction shell are 2-4 mm, the internal aperture is 3-5 mm, and the bottom surface is of an arc-shaped structure.
4. A hot start architecture as set forth in claim 1, wherein: the induction charge (2) is boron-potassium nitrate ignition charge, and the mass is 0.15g-0.25g.
5. A hot start architecture as set forth in claim 1, wherein: the push rod (3) is made of stainless steel 17-4PH material, and the diameter of the push rod is 4 mm-5 mm.
6. A hot start architecture as set forth in claim 1, wherein: the bayonet lock (7) is made of stainless steel 17-4PH material, is cylindrical, the diameter of the cylindrical end is 2 mm-3 mm, and the spring (8) is sleeved on the cylinder.
7. A hot start architecture as set forth in claim 1, wherein: the first sliding block (9) and the second sliding block (10) are both made of stainless steel 17-4PH materials.
8. A hot start architecture as set forth in claim 1, wherein: the initiating explosive (11) is formed by pressing lead azide initiating explosive, and the dosage is 0.1 g-0.2 g.
9. A hot start architecture as set forth in claim 1, wherein: the high explosive (13) is hexanitrostilbene, and the dosage is 0.3 g-0.5 g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111585847.7A CN114216377B (en) | 2021-12-23 | 2021-12-23 | Novel hot start structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111585847.7A CN114216377B (en) | 2021-12-23 | 2021-12-23 | Novel hot start structure |
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| Publication Number | Publication Date |
|---|---|
| CN114216377A CN114216377A (en) | 2022-03-22 |
| CN114216377B true CN114216377B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111585847.7A Active CN114216377B (en) | 2021-12-23 | 2021-12-23 | Novel hot start structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4986184A (en) * | 1989-10-26 | 1991-01-22 | Honeywell Inc. | Self-sterilizing fire-on-the-fly bi-stable safe and arm device |
| CN107907016A (en) * | 2017-11-29 | 2018-04-13 | 四川蓝狮科技有限公司 | A kind of thermal starting pressure relief device |
| CN110701967A (en) * | 2019-09-30 | 2020-01-17 | 湖北三江航天红林探控有限公司 | Slider formula insurance isolating mechanism based on hot melt insurance |
| CN111023914A (en) * | 2020-01-02 | 2020-04-17 | 四川久安芯电子科技有限公司 | Hot start cutting device |
| CN211452090U (en) * | 2020-01-02 | 2020-09-08 | 四川久安芯电子科技有限公司 | Hot start cutting device |
-
2021
- 2021-12-23 CN CN202111585847.7A patent/CN114216377B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4986184A (en) * | 1989-10-26 | 1991-01-22 | Honeywell Inc. | Self-sterilizing fire-on-the-fly bi-stable safe and arm device |
| CN107907016A (en) * | 2017-11-29 | 2018-04-13 | 四川蓝狮科技有限公司 | A kind of thermal starting pressure relief device |
| CN110701967A (en) * | 2019-09-30 | 2020-01-17 | 湖北三江航天红林探控有限公司 | Slider formula insurance isolating mechanism based on hot melt insurance |
| CN111023914A (en) * | 2020-01-02 | 2020-04-17 | 四川久安芯电子科技有限公司 | Hot start cutting device |
| CN211452090U (en) * | 2020-01-02 | 2020-09-08 | 四川久安芯电子科技有限公司 | Hot start cutting device |
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| Publication number | Publication date |
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| CN114216377A (en) | 2022-03-22 |
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