Redundant explosion propagation tree network separation device

Abstract

The invention provides a redundant explosion propagation tree-shaped network separation device. The redundant explosion propagation tree-shaped network separation device comprises a tree-shaped explosion propagation center, a plurality of detonating cord assemblies and a plurality of cutting cord assemblies, the cutting rope assemblies are evenly distributed in the circumferential direction and installed on the top of the tree-shaped explosion propagation center. Two ends of the detonating cord assembly are respectively connected with the tree-shaped explosion propagation pivot and the cutting cord assembly; the tree-shaped explosion propagation center comprises a root detonator, a top detonator, a plurality of primer detonators, a plurality of middle detonators and a plurality of crown detonators; primer detonators are symmetrically arranged at the bottom of the tree-shaped explosion propagation center, and a root detonator and a top detonator are arranged in the middle and on the top of the tree-shaped explosion propagation center respectively; the plurality of middle detonators are respectively mounted in the detonating cord assembly mounting interfaces in the middle of the tree-shaped explosion propagation center, and the plurality of crown detonators are respectively mounted in the cutting cord assembly mounting interfaces at the top of the tree-shaped explosion propagation center. According to the device, mutual redundancy explosion guiding and propagation of the detonating cord and the cutting cord is achieved, the cutting cord assembly is laid on the inner wall of the non-metal spherical shell, the spherical shell is separated according to a preset shape during working, and a launching channel is opened.

Description

TECHNICAL FIELD

[0001] The application relates to a redundant transmission network separation device, and belongs to the field of initiating explosives. BACKGROUND

[0002] In the dry launching mode, the outer metal launching cover is first opened, the nonmetallic spherical shell at the barrel mouth blocks the seawater from entering, and the missile is instantly ejected by breaking the nonmetallic spherical shell at the barrel mouth through the initiating explosive at the moment of ignition, so that the launching process does not contact the seawater.

[0003] Generally, the initiating explosive separation network is laid in the inner wall of the nonmetallic spherical shell, and the spherical shell is separated in a preset shape to open the launching channel in working.

[0004] The existing network separation structure needs to arrange multiple three-way or four-way transmission joints or adopt a multiple-joint combination design through a propellant pressing structure to simultaneously transmit the explosion of the top multiple cutting cable assemblies, cannot realize the redundant explosion of the cutting cable assemblies, cannot realize the thread sealing of the transmission channel, and has complex assembly and a long cycle. SUMMARY

[0005] The application aims to overcome the defects of the prior art and provide a redundant transmission network separation structure, which realizes the mutual redundant explosion of the detonating cord and the cutting cable, lays the cutting cable assembly in the inner wall of the nonmetallic spherical shell, and separates the spherical shell in a preset shape to open the launching channel in working.

[0006] The application adopts the technical scheme that a redundant transmission network separation device comprises a tree-shaped transmission hub, a plurality of detonating cord assemblies and a plurality of cutting cable assemblies.

[0007] The plurality of cutting cable assemblies are evenly distributed in the circumferential direction and are installed at the top of the tree-shaped transmission hub.

[0008] The tree-shaped transmission hub comprises a root detonator, a top detonator, a plurality of initiating detonators, a plurality of middle detonators and a plurality of crown detonators.

[0009] In operation, the initiating detonator receives an external detonation signal, and through the transmission channel in the tree-shaped transmission detonation hub, the detonation is transmitted to the root detonator, the axial detonation is transmitted to the top detonator, the lateral detonation is transmitted to each middle detonator, and after the top detonator works, the lateral detonation is transmitted to each crown detonator; after the top detonator works, the detonating cord assembly is ignited, and then the back detonator in the cutting cord assembly is ignited; each crown detonator axially ignites the cutting cord assembly; each cutting cord assembly outputs a shaped jet to complete separation.

[0010] Further, the tree-shaped transmission detonation hub further comprises a sealing cap, a root positioning hoop, a top positioning hoop and a shell; the top positioning hoop is installed in the shell, and the top detonator is limited by the step surface arranged in the shell and the top positioning hoop; the root positioning hoop is installed in the shell, and the root detonator is limited by the top positioning hoop and the root positioning hoop; the initiating detonator, the middle detonator and the crown detonator are respectively limited by the step surface arranged in the shell; the sealing cap is installed at the bottom of the shell for sealing.

[0011] Further, the cutting cord assembly comprises a first sealing ring, a first screw sleeve, a first sleeve, a cutting cord, a heat shrink tube, a back initiating screw sleeve and a back detonator; the cutting cord is installed in the heat shrink tube, the first sleeve is tightly installed at the end of the cutting cord, the first sleeve is installed in the first screw sleeve through the first sealing ring, the back initiating screw sleeve is installed in the middle of the heat shrink tube, and the back detonator is installed in the back initiating screw sleeve.

[0012] Further, the detonating cord assembly comprises a second sealing ring, a second screw sleeve, a second sleeve and a detonating cord; after the coating layer of the detonating cord is removed, the second sleeve is installed at both ends of the detonating cord, the second sleeve at both ends of the detonating cord is installed in the second screw sleeve, and the second screw sleeve at both ends of the detonating cord is connected to the back initiating screw sleeve in the middle of the cutting cord assembly and the detonating cord assembly installation interface in the middle of the tree-shaped transmission detonation hub through the second sealing ring.

[0013] Compared with the prior art, the advantages of the present application are as follows:

[0014] The separation device of the present application is integrally connected by threads, and is easy to assemble; the separation device realizes redundant initiation and transmission through the setting of end initiation and back initiation of the cutting cord assembly and the setting of double initiation nodes, and has high reliability; when the tree-shaped transmission detonation hub connects the detonating cord assembly and the cutting cord assembly, thread connection and sealing rings are used to realize overall sealing of the separation device, and the environmental adaptability is good; through the setting of multi-stage dry detonator and branch detonator and the matching of detonator diameter, charge, diaphragm direction, step surface and other structures, the tree-shaped transmission detonation hub realizes multi-stage and multi-item transmission of detonation, and has high reliability; compared with the traditional network separation device, the number of finished parts is small, and the weight is light. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the present application;

[0016] Figure 2 This is a simplified front view of the present invention;

[0017] Figure 3 This is a cross-sectional view (AA) of the present invention. Detailed Implementation

[0018] The present invention will be described in conjunction with the accompanying drawings.

[0019] This invention provides a redundancy-propelled detonation tree network separation device, such as... Figure 1 , Figure 2 As shown, it includes one tree-shaped detonation transmission center 1, eight detonating cord assemblies 2, and eight cutting cord assemblies 3;

[0020] like Figure 3 As shown, the tree-shaped detonation transmission center 1 includes 1 sealing cap 1.1, 2 detonating detonators 1.2, 1 root positioning clamp 1.3, 1 root detonator 1.4, 8 middle detonators 1.5, 1 top positioning clamp 1.6, 1 top detonator 1.7, 1 shell 1.8, and 8 crown detonators 1.9;

[0021] The detonating cord assembly 2 includes two second sealing rings 2.1, two second threaded sleeves 2.2, two second sleeves 2.3, and detonating cord 2.4;

[0022] The cutting cable assembly 3 includes a first sealing ring 3.1, a first threaded sleeve 3.2, a first sleeve 3.3, a cutting cable 3.4, a heat shrink tubing 3.5, a back detonating threaded sleeve 3.6, and a back detonator 3.7.

[0023] Several cutting cord assemblies 3 are evenly distributed around the circumference and installed on the top of the tree-shaped detonation transmission center 1; the two ends of the detonating cord assembly 2 are respectively connected to the tree-shaped detonation transmission center 1 and the cutting cord assembly 3;

[0024] A tree-shaped detonation transmission center 1 is symmetrically equipped with initiating detonators 1.2 at its bottom, root detonators 1.4 and top detonators 1.7 at its middle and top, respectively. Several intermediate detonators 1.5 are installed in the detonating cord assembly interfaces at the middle of the tree-shaped detonation transmission center 1, and several crown detonators 1.9 are installed in the cutting cord assembly interfaces at the top of the tree-shaped detonation transmission center 1. A top positioning clamp 1.6 is installed in the housing 1.8, and the top detonator 1.7 is limited by the stepped surface inside the housing 1.8 and the top positioning clamp 1.6. A root positioning clamp 1.3 is installed in the housing 1.8, and the root detonator 1.4 is limited by the top positioning clamp 1.6 and the root positioning clamp 1.3. The initiating detonators 1.2, intermediate detonators 1.5, and crown detonators 1.9 are limited by the stepped surface inside the housing 1.8. A sealing cap 1.1 is installed at the bottom of the housing 1.8 for sealing.

[0025] A cutting cord 3.4 is installed in the heat shrink tubing 3.5. The end of the cutting cord 3.4 is tightly fitted with a first sleeve 3.3. The first sleeve 3.3 is installed in the first threaded sleeve 3.2 through the first sealing ring 3.1. A back detonating threaded sleeve 3.6 is installed in the middle of the heat shrink tubing 3.5. A back detonator 3.7 is installed in the back detonating threaded sleeve 3.6.

[0026] After removing the coating layer from both ends of the detonating cord 2.4, a second sleeve 2.3 is installed. The second sleeves 2.3 at both ends of the detonating cord 2.4 are installed in the second threaded sleeves 2.2. The second threaded sleeves 2.2 at both ends of the detonating cord 2.4 are connected to the installation interfaces of each detonating cord assembly in the middle of the tree-shaped detonation transmission center 1 and the back detonating threaded sleeve 3.6 in the middle of the cutting cord assembly 3 through the second sealing ring 2.1.

[0027] like Figure 3 As shown, during the assembly of the tree-shaped detonation transmission center 1, the top detonator 1.7 with its outer surface coated with adhesive diaphragm is placed into the housing 1.8 with its outer surface coated with adhesive, and the top positioning clamp 1.6 is also placed into the housing 1.8 with its outer surface coated with adhesive. The top detonator 1.7 is limited by the stepped surface of the housing 1.8 and the top positioning clamp 1.6. Similarly, the root detonator 1.4 with its outer surface coated with adhesive diaphragm is placed into the housing 1.8 with its outer surface coated with adhesive, and the root positioning clamp 1.3 is also placed into the housing 1.8 with its outer surface coated with adhesive. The root detonator 1.4 is limited by the top positioning clamp 1.6 and the root positioning clamp. 1.3 Limiting; Place the outer diaphragm of the detonator 1.2 with the adhesive coating facing outward into the housing 1.8, with the detonator 1.2 limited by the stepped surface of the housing 1.8; Place the middle detonator 1.5 with the adhesive coating facing inward into the housing 1.8, with the middle detonator 1.5 limited by the stepped surface of the housing 1.8; Place the crown detonator 1.9 with the adhesive coating facing inward into the housing 1.8, with the crown detonator 1.9 limited by the stepped surface of the housing 1.8; Screw the sealing cap 1.1 with adhesive applied to the threads into the housing 1.8.

[0028] like Figure 3 As shown, when assembling the detonating cord assembly 2, first insert the second threaded sleeve 2.2 into the detonating cord 2.4 with the thread facing outwards, and then tighten the ends of the detonating cord 2.4 by removing the outer sheath and installing the second sleeve 2.3.

[0029] like Figure 3 As shown, when assembling the cutting cable assembly 3, the heat shrink tubing 3.5 is inserted into the cutting cable 3.4 in advance. First, the end of the cutting cable 3.4 is tightened and the first sleeve 3.3 is installed. The first threaded sleeve 3.2 is inserted into the cutting cable 3.4 with the thread facing outward. The back detonating sleeve 3.6 is inserted into the back. The outer circumference of the back detonator 3.7 is placed into the back detonating sleeve 3.6 with the adhesive film on the outer circumference facing outward.

[0030] like Figure 3As shown, when assembling the tree-shaped detonation hub 1, the eight detonating cord assemblies 2, and the eight cutting cord assemblies 3, the first sealing ring 3.1 of the cutting cord assembly 3 is inserted into the first threaded sleeve 3.2 and screwed into the thread at the crown detonator 1.9 position; the second sealing ring 2.1 of the detonating cord assembly 2 is inserted into the second threaded sleeve 2.2 and screwed into the thread at the middle detonator 1.5 position; the second sealing ring 2.1 of the other end of the detonating cord assembly 2 is inserted into the second threaded sleeve 2.2 and screwed into the thread at the back detonating sleeve 3.6 position.

[0031] During operation, the detonator 1.2 receives an external detonation signal and transmits it to the root detonator 1.4 through the detonation transmission channel of the casing 1.8. The axial detonation is transmitted to the top detonator 1.7, and the lateral detonation is transmitted to the middle detonator 1.5. After the top detonator 1.7 is activated, the lateral detonation is transmitted to the crown detonator 1.9. After the top detonator 1.7 is activated, it detonates the detonating cord 2.4, which in turn detonates the back detonator 3.7. The crown detonator 1.9 axially detonates the cutting cord assembly 3, and the back detonator 3.7 detonates the cutting cord assembly 3 from the back. The cutting cord assembly 3 outputs a shaped jet to complete the predetermined separation function.

[0032] The first charge of the detonator should be lead azide;

[0033] The reliability of detonation transmission should be ensured by setting the stepped surface and the inner and outer diameters and height of the hoop, so as to ensure that the center extension lines of the main detonator and the branch detonator are tangent.

[0034] The parts of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A redundant booster tree network separation device, comprising: The tree-shaped detonation booster hub (1), a plurality of detonating cord assemblies (2) and a plurality of cutting cord assemblies (3); The plurality of cutting cord assemblies (3) are evenly distributed around the circumference and are installed at the top of the tree-shaped detonation booster hub (1); the detonating cord assemblies (2) are respectively connected to the tree-shaped detonation booster hub (1) and the cutting cord assemblies (3) at both ends. The tree-shaped detonation booster hub (1) comprises a root detonator (1.4), a top detonator (1.7), a plurality of initiating detonators (1.2), a plurality of middle detonators (1.5) and a plurality of crown detonators (1.9); the initiating detonators (1.2) are symmetrically arranged at the bottom of the tree-shaped detonation booster hub (1), the root detonator (1.4) and the top detonator (1.7) are respectively arranged at the middle and top of the tree-shaped detonation booster hub (1); the plurality of middle detonators (1.5) are respectively installed in the detonating cord assembly installation interfaces of the middle of the tree-shaped detonation booster hub (1), and the plurality of crown detonators (1.9) are respectively installed in the cutting cord assembly installation interfaces of the top of the tree-shaped detonation booster hub (1).

2. The redundant booster tree network separation device of claim 1, wherein, In operation, the initiating detonator (1.2) receives an external detonation signal, and through the detonation transmission channel in the tree-shaped detonation booster hub (1), the detonation is transmitted to the root detonator (1.4), the axial detonation is transmitted to the top detonator (1.7), the lateral detonation is transmitted to each middle detonator (1.5), and after the top detonator (1.7) works, the lateral detonation is transmitted to each crown detonator (1.9); after the top detonator (1.7) works, the detonating cord assembly (2) is ignited, and then the back detonator (3.7) in the cutting cord assembly (3) is ignited; each crown detonator (1.9) axially ignites the cutting cord assembly (3); each cutting cord assembly (3) outputs a shaped jet to complete separation.

3. The redundant booster tree network separation device of claim 2, wherein, The tree-shaped detonation booster hub (1) further comprises a sealing cap (1.1), a root positioning hoop (1.3), a top positioning hoop (1.6) and a shell (1.8); the top positioning hoop (1.6) is installed in the shell (1.8), and the top detonator (1.7) is limited by the step surface arranged in the shell (1.8) and the top positioning hoop (1.6); the root positioning hoop (1.3) is installed in the shell (1.8), and the root detonator (1.4) is limited by the top positioning hoop (1.6) and the root positioning hoop (1.3); the initiating detonator (1.2), the middle detonator (1.5) and the crown detonator (1.9) are respectively limited by the step surface arranged in the shell (1.8); the sealing cap (1.1) is installed at the bottom of the shell (1.8) for sealing.

4. The redundant booster tree network separation device of claim 3, wherein, The cutting cord assembly (3) comprises a first sealing ring (3.1), a first screw sleeve (3.2), a first sleeve (3.3), a cutting cord (3.4), a heat shrink tube (3.5), a back initiating screw sleeve (3.6) and a back detonator (3.7); the cutting cord (3.4) is installed in the heat shrink tube (3.5), the end of the cutting cord (3.4) is tightly installed in the first sleeve (3.3), the first sleeve (3.3) is installed in the first screw sleeve (3.2) through the first sealing ring (3.1), the back initiating screw sleeve (3.6) is installed in the middle of the heat shrink tube (3.5), and the back detonator (3.7) is installed in the back initiating screw sleeve (3.6).

5. The redundant booster tree network separation device of claim 4, wherein, The detonating cord assembly (2) comprises a second sealing ring (2.1), a second screw sleeve (2.2), a second sleeve (2.3) and a detonating cord (2.4); the two ends of the detonating cord (2.4) are respectively provided with the second sleeve (2.3) after removing the coating layer, the two ends of the second sleeve (2.3) are respectively arranged in the second screw sleeve (2.2), and the two ends of the second screw sleeve (2.2) are respectively connected with the detonating cord assembly mounting interface in the middle of the tree-shaped detonation transmission hub (1) and the back detonation screw sleeve (3.6) in the middle of the cutting cord assembly (3) through the second sealing ring (2.1).

6. The redundant booster tree network separation device of claim 5, wherein, The first layer charge of the detonator in the tree-shaped detonation transmission hub (1) and the cutting cord assembly (3) is lead azide.

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