CN215323304U - Initiating explosive device structure with time sequence - Google Patents
Initiating explosive device structure with time sequence Download PDFInfo
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- CN215323304U CN215323304U CN202120978799.7U CN202120978799U CN215323304U CN 215323304 U CN215323304 U CN 215323304U CN 202120978799 U CN202120978799 U CN 202120978799U CN 215323304 U CN215323304 U CN 215323304U
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Abstract
The utility model relates to an initiating explosive device structure with time sequence, wherein an electric ignition part, an external flame output part and a main explosive charge part are assembled on the same body, and a delay part is arranged between the ignition part and the main explosive charge part, so that the main explosive charge part lags behind the delay ignition of the external flame output part. The utility model can be used for an emergency lifesaving system of an airplane, and can also be applied to an aerospace system, a conventional weapon system and an underwater transportation system, such as the working conditions of launching operation, interstage separation, seeker separation, oil tank release and the like which need to carry out time sequence control on ignition and throwing separation.
Description
Technical Field
The utility model belongs to the technical field of initiating explosive devices, and particularly relates to a initiating explosive device structure with time sequence.
Background
At present, the multifunctional initiating explosive device which is applied to the aviation and aerospace fields and has the functions of outputting flame and separating work is mainly used for realizing the time sequence function by adopting the time difference between mechanical motion and detonation (fire transfer) of explosive and powder or adopting two initiating explosive devices through circuit logic control. However, the former has poor capability of adjusting the time sequence, and the latter increases the complexity of the initiating explosive device, which is not favorable for improving the reliability of the initiating explosive device.
Disclosure of Invention
The technical problem solved by the utility model is as follows: in order to overcome the defects that the time sequence time adjustment capability of the conventional initiating explosive device structure is poor and the structure of the initiating explosive device is too complex, the utility model designs an initiating explosive device structure with time sequence.
The technical scheme of the utility model is as follows: an initiating explosive device structure with time sequence comprises a explosive charging assembly, an electric detonator, a clapboard igniter, a body and a piston;
the body is of a reducing structure, and a reducing through hole is axially formed in the body; the large-diameter end is provided with a radial through hole and communicated with the axial diameter-variable through hole, and the axis is vertical to the axis of the body; the partition plate igniter and the electric detonator are respectively placed in the through holes formed in the large-diameter end;
the piston is positioned in the middle of the axial through hole of the body and is limited through a step surface; the charging assembly and the piston are not contacted to form a gap;
the charge assembly is positioned at the bottom of the axial through hole of the body, delay powder and propellant powder are sequentially arranged in the axial direction, and the delay powder is close to the bottom of the piston; after the electric detonator is detonated, the explosion flame simultaneously ignites the partition board igniter and the explosive charging assembly through the gap, the partition board igniter outputs flame outwards after acting, the delay powder in the explosive charging assembly ignites the propellant powder inside the explosive charging assembly after a certain delay, and the propellant powder generates high-pressure gas after being combusted to push the piston to move.
The further technical scheme of the utility model is as follows: the charge assembly comprises a charge assembly shell, propellant powder, a buckle cap, a silk pad, a fire transfer pipe shell, a reinforcing cap and delay powder; one axial end of the charging component shell is provided with a straight groove, the other axial end of the charging component shell is provided with a blind hole, the blind hole is a variable-diameter hole, and the small-diameter end is positioned in the middle; the outer wall is fixedly connected with the inner wall of the body; after propellant is put into the bottom of the reducing blind hole, a buckle cap with a silk pad is placed, and an axial through hole is formed in the buckle cap; the fire transfer pipe shell is fixedly connected with the upper part of the variable-diameter blind hole through threads, and a distance exists between the fire transfer pipe shell and the buckle cap; the delay powder is positioned in the ignition tube shell, the reinforcing cap is positioned on the delay powder, and the reinforcing cap is provided with an axial through hole; the delay composition is near the piston end.
The further technical scheme of the utility model is as follows: the body, the piston, the charging component shell, the propellant powder, the buckle cap, the fire transfer pipe shell, the reinforcing cap and the delay powder are arranged in a shaft line superposition mode.
The further technical scheme of the utility model is as follows: the outer wall of the piston is in a step shape, the outer wall of the large-diameter end and the inner wall of the body are in clearance fit, and the piston is sealed through the sealing assembly.
The further technical scheme of the utility model is as follows: and a blind hole is axially formed in one end of the piston, which is far away from the delay powder, and is used for reducing weight.
The further technical scheme of the utility model is as follows: the large-diameter end of the body is radially provided with a step-variable through hole, so that two cavities are symmetrically formed along the body main body; the small-diameter holes in the two chambers are communicated with a gap between the charging assembly and the piston to form a gas channel.
The further technical scheme of the utility model is as follows: the propellant is asphalt passivated trinitroresorcinol lead.
The further technical scheme of the utility model is as follows: the delay agent is boron series delay agent.
Effects of the utility model
The utility model has the technical effects that: the electric ignition part, the outward flame output part and the main charge part are assembled on the same body, and the delay part is arranged between the ignition part and the main charge part, so that the delay ignition of the main charge part lags behind the outward flame output part is realized. The utility model can be used for an emergency lifesaving system of an airplane, and can also be applied to an aerospace system, a conventional weapon system and an underwater transportation system, such as the working conditions of launching operation, interstage separation, seeker separation, oil tank release and the like which need to carry out time sequence control on ignition and throwing separation.
Compared with the prior art, the utility model has the following specific effects:
(1) the structure belongs to a passive induction electric initiating explosive device, is designed with a common electrostatic discharge structure of the initiating explosive device, adopts a semiconductor ignition piece with mature technology, has the performances of static resistance, electromagnetic interference resistance and radio frequency resistance, and has high safety and high reliability.
(2) The structure can be applied to airborne initiating explosive devices, can realize sequential control of outputting flame and acting outwards successively, and has adjustability of time sequence time difference which is larger than 0.1 ms.
(3) The time sequence structure is characterized in that the time interval is adjustable, the reliability is high, and the multifunctional integrated design is realized by controlling the type and the charge amount of delay powder.
Drawings
FIG. 1 is a schematic diagram of a sequential functional structural component of initiating explosive device according to the present invention,
figure 2 is a schematic view of the charge assembly shown in figure 1,
figure 3 is a schematic view of the charge assembly housing configuration shown in figure 2,
fig. 4 is a schematic view of the structure of the body shown in fig. 1, wherein the reference numerals respectively represent:
description of reference numerals: 1. the explosive charging device comprises an explosive charging component, 2, an electric detonator, 3, a partition plate igniter, 4, a separation body, 5, an O-shaped ring, 6, a sealing ring, 7 and a piston; the reference numerals in the drawings denote: 101. a charge component shell 102, a propellant powder 103, a buckle cap 104, a silk pad 105, a fire transfer pipe shell 106, a reinforcing cap 107 and a delay powder; the reference numerals in the drawings denote: 101a, a straight groove, 101b, threads, 101c, a propellant powder loading chamber, 101d and a firing pipe shell mounting thread; 4a, mounting flange, 4b, explosive charging assembly mounting hole, 4c, partition plate igniter mounting hole, 4d, electric detonator mounting hole, 4e and piston mounting hole
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-4, the initiating explosive device functional structural member with time sequence comprises a charging assembly, an electric detonator, a clapboard igniter, a body, an O-shaped ring, a sealing ring and a piston.
The charge assembly comprises a charge assembly shell 101, propellant powder 102, a buckle cap 103, a silk pad 104, a fire tube shell 105, a reinforcing cap 106 and delay powder 107. The shell of the charge component is a buckle cap, a fire transfer pipe shell and a carrier for propellant powder; the fire transfer pipe shell is a carrier of delay powder and has a hollow shell structure. When the initiating explosive device functional structural part with the time sequence is manufactured, the piston 7 is arranged in the piston mounting hole 4e of the body 4, the sealing ring 6 is sleeved on the explosive charging component 1, and a proper amount of epoxy curing glue is coated on the thread 101b of the explosive charging component and screwed into the explosive charging component mounting hole 4b of the body 4; and (3) installing the O-shaped ring at the step of the two side holes of the body, coating a proper amount of epoxy curing adhesive on the threads of the separator igniter and screwing the epoxy curing adhesive into the mounting hole 4c of the separator igniter of the body 4, and coating a proper amount of epoxy curing adhesive on the threads of the electric igniter and screwing the epoxy curing adhesive into the mounting hole 4d of the electric igniter of the body 4. The propellant powder is loaded into the shell of the charging component, the cap with silk pad is buckled on the shell, and then the shell of the fire transfer tube pressed with the delay powder is screwed into the shell of the charging component. During manufacturing, the propellant powder 102 is filled into the charge component shell 101, the buckle cap 103 with the silk pad 104 is buckled, the ignition tube shell 105 is filled into the powder pressing mold, the delay powder 107 and the reinforcing cap 106 are filled into the central hole of the ignition tube shell 105 for pressing, and then the ignition tube shell 105 pressed with the delay powder 107 is screwed into the charge component shell 101.
The electric initiating device is a mature product, is a insensitive electric initiating device, and has the characteristics of strong anti-static capability and high safety.
The partition plate igniter is a mature product and comprises a partition plate body, sealing paint, a sealing cap, an ignition charge, an initiating charge, an explosive, a priming charge, a silk pad and a reinforcing cap.
The separation body is of a hollow cylindrical structure with a flange, the bottom of the separation body is a cuboid flange, the thickness of the flange is 4mm, and 4 corners of the flange are provided with mounting holes with the diameter of 5.5mm and used for fixing the separation body with an airplane mounting rack; the middle part is a cylindrical hole, the bottom end and the side surface are provided with threaded mounting holes for mounting the ignition part and the charging part, and the center is provided with a piston assembling hole.
The O-shaped ring is a standard O-shaped rubber ring with the diameter of 14mm and the specification of 2.65A, and is arranged in the annular grooves at the two sides of the body.
The sealing ring is an annular polytetrafluoroethylene sealing washer.
The piston is of a cylindrical structure, one end of the cylinder is provided with a U-shaped groove structure, and the other end of the cylinder is of a double-groove cylindrical structure adopting O-shaped ring static sealing.
The amount of propellant in the charge assembly described in this example was 225 mg; the delayed release drug dosage is 80mg, and the pressing pressure is 80MPa +/-5 MPa.
The body material described in this example is titanium alloy TC 4M, the charge component shell material is hot rolled stainless steel bar 1Cr17Ni2, and the diaphragm igniter material is aviation heat-resistant steel bar 1Cr11Ni2W2 MoV.
The sealing ring material described in this embodiment is silicone rubber.
The silk pad material described in this embodiment is 416 plain silk.
In the embodiment, the preferred initiating explosive is lead carboxymethyl cellulose azide, and the priming powder is asphalt passivated trinitroresorcinol lead.
The preferred epoxy curing glue of this embodiment is 914 rapid adhesive.
Claims (8)
1. The initiating explosive device structure with the time sequence is characterized by comprising a explosive charging component (1), an electric detonator (2), a clapboard igniter (3), a body (4) and a piston (7);
the body (4) is of a reducing structure, and is axially provided with a reducing through hole; the large-diameter end is provided with a radial through hole and communicated with the axial variable-diameter through hole, and the axis of the large-diameter end is vertical to the axis of the body (4); a clapboard igniter (3) and an electric detonator (2) are respectively placed in the through hole formed at the large-diameter end;
the piston (7) is positioned in the middle of the axial through hole of the body (4) and is limited by a step surface; the charging assembly (1) and the piston (7) are not contacted to form a gap;
the powder charging assembly (1) is positioned at the bottom of the axial through hole of the body (4), delay powder and propellant powder are sequentially arranged in the axial direction, and the delay powder is close to the bottom of the piston (7); after the electric detonator (2) is detonated, explosion flame simultaneously ignites the partition igniter (3) and the explosive charging assembly (1) through a gap, flame is output outwards after the partition igniter (3) acts, the delay powder in the explosive charging assembly (1) ignites the internal propellant after a certain delay, and the propellant generates high-pressure gas after burning to push the piston (7) to move.
2. A pyrotechnic structure in accordance with claim 1 wherein the charge (1) comprises a charge housing (101), a propellant charge (102), a button cap (103), a wad (104), a fire tube shell (105), a reinforcing cap (106) and a delay charge (107); one axial end of the charge component shell (101) is provided with a straight groove, the other axial end is provided with a blind hole, the blind hole is a diameter-variable hole, and the small-diameter end is positioned in the middle; the outer wall is fixedly connected with the inner wall of the body (4); after propellant powder (102) is placed at the bottom of the reducing blind hole, a buckle cap (103) with a silk pad (104) is placed, and an axial through hole is formed in the buckle cap (103); the fire transfer pipe shell (105) is fixedly connected with the upper part of the variable-diameter blind hole through threads, and a distance exists between the fire transfer pipe shell (105) and the buckle cap (103); the delay powder (107) is positioned in the ignition tube shell (105), the reinforcing cap (106) is positioned on the delay powder (107), and the reinforcing cap (106) is provided with an axial through hole; a delay composition (107) is adjacent the piston end.
3. A pyrotechnic structure in accordance with claim 1 or 2 wherein the body (4), piston (7), charge pack housing (101), propellant charge (102), locking cap (103), transfer case (105), reinforcing cap (106) and delay charge (107) are arranged with their axes coincident.
4. The initiating explosive device structure with the timing sequence as claimed in claim 1, wherein the outer wall of the piston (7) is stepped, the outer wall of the large-diameter end and the inner wall of the body (4) are in clearance fit, and are sealed by a sealing component.
5. A sequential pyrotechnic structure as claimed in claim 3 wherein the end of the piston (7) remote from the primer (107) is axially blind for weight reduction.
6. The initiating explosive device structure with the time sequence as claimed in claim 1, wherein the large diameter end of the body (4) is radially provided with a step-variable through hole, so that two chambers are symmetrically formed along the main body of the body (4); the small-diameter holes in the two cavities are communicated with a gap between the charging assembly (1) and the piston (7) to form a gas channel.
7. The initiating explosive device structure with time sequence property according to claim 1, wherein the propellant is asphalt passivated trinitroresorcinol lead.
8. The initiating explosive device structure with time sequence as claimed in claim 1, wherein the delay agent is a boron-based delay agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120978799.7U CN215323304U (en) | 2021-05-10 | 2021-05-10 | Initiating explosive device structure with time sequence |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120978799.7U CN215323304U (en) | 2021-05-10 | 2021-05-10 | Initiating explosive device structure with time sequence |
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| CN215323304U true CN215323304U (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428387A (en) * | 2021-05-10 | 2021-09-24 | 西安北方庆华机电有限公司 | Detachable initiating explosive device cutting and separating combined structure capable of bearing large bending moment load |
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2021
- 2021-05-10 CN CN202120978799.7U patent/CN215323304U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428387A (en) * | 2021-05-10 | 2021-09-24 | 西安北方庆华机电有限公司 | Detachable initiating explosive device cutting and separating combined structure capable of bearing large bending moment load |
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