JP2011069510A - Explosion cutoff device and flying object using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an explosion cutoff device in a simple structure and a flying object using the same, which simultaneously cuts a plurality of objects to be cut for a reduction in the whole weight of a device. <P>SOLUTION: This explosion cutoff device has a molded blasting cable 10 including a liner 11 filled with an explosive 12, and a detonator connected with the shaped blasting cable 10, and the liner 11 is formed with a plurality of grooves 13 respectively opposed to the plurality of cut objects 30. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a blast cutting device and a flying object using the same.

  Conventionally, dynamite, for example, has been used as a blast cutting device that blows and cuts objects to be cut such as pipes and pressure vessels. However, with dynamite, there is a problem that a part other than the target part of the object to be cut is destroyed or the target part cannot be destroyed unless a large amount of explosive is used. For this reason, the technique which destroys only the target location of a to-be-cut object, and can destroy a target location with a small amount of explosives was calculated | required.

  Techniques for meeting such demands have been studied and put into practical use, and the following techniques are disclosed as patent documents. FIG. 5 is a schematic diagram of a V-shaped explosion line 1000 shown in Patent Documents 1 and 2. FIG. 5A is a cross-sectional view of a V-shaped explosion broken line 1000. FIG. 5B is a diagram illustrating an explosion state of the V-shaped explosion line 1000. FIG. 5C is a diagram showing an installation state of a V-shaped explosion broken line 1000.

  As shown in FIG. 5A, the V-shaped explosive broken line 1000 is installed such that the explosive 1002 is filled in the V-shaped liner 1001 in a cross-sectional view, and the V-shaped groove portion faces the object 1003 to be cut. Has been. With such a configuration, the explosive 1002 explodes when the detonation is transmitted to the inside of the liner 1001, and the liner 100 is crushed by the explosive force generated at that time, thereby forming a high-temperature, high-pressure, high-speed jet 1004. The object 1003 to be cut can be cut by causing the jet 1004 to collide with the object 1003 to be cut (Neumann effect) (see FIG. 5B).

JP 58-181600 A JP 2009-35161 A

  For example, when any abnormality occurs in the rocket, it is necessary to separate the fuel tank 1010 from the rocket. In this case, in order to reliably separate the fuel tank 1010 from the rocket body 1030, the rocket body 1030 for fixing the fuel tank 1010 and the fuel tank 1010 must be simultaneously cut. However, the V-shaped explosion broken line 1000 of Patent Documents 1 and 2 can only cut an object to be cut in one direction. Therefore, in order to cut the rocket body 1030 and the fuel tank 1010 at the same time, the two V-shaped molded broken lines 1000 are installed so that the respective groove portions face the rocket body 1030 and the fuel tank 1010. However, it is difficult to explode two V-shaped explosion broken lines 1000 at the same time, and there is a problem that one V-shaped explosion broken line 1000 that has exploded first destroys the other V-shaped explosion broken line 1000. . In order to prevent such a problem, there is a method of installing a sturdy shielding plate 1005 between two V-shaped molded explosion broken lines 1000. However, there are problems such as an increase in weight as a whole rocket, a complicated structure, and a difficulty in mounting (see FIG. 5C).

  The present invention has been made in view of the above-described problems. A blast cutting apparatus having a simple structure capable of simultaneously cutting a plurality of objects to be cut and capable of reducing the weight of the entire apparatus, and It aims at providing the flying body using it.

  In order to solve the above-described problems, the present invention has a molded explosion broken line provided with a liner filled with an explosive, and an initiation device connected to the molded explosion broken line, and the liner has a plurality of cut objects. A plurality of grooves are formed so as to face the object, respectively.

  By adopting such a configuration, in the present invention, by operating the detonator, the explosive inside the liner in which a plurality of grooves are formed explodes, and the liner is crushed by the explosive force generated at that time. A plurality of objects to be cut can be cut simultaneously by forming a high-temperature, high-pressure, high-speed jet and causing the jets to collide with the objects to be cut. Further, unlike Patent Documents 1 and 2, there is no need to install a shielding plate between a plurality of V-shaped molded broken lines, so that the entire apparatus can be reduced in weight and can have a simple structure.

  Moreover, in this invention, the structure that the said some groove part is each formed in the same magnitude | size is employ | adopted.

  In the present invention, a configuration is adopted in which the plurality of grooves are arranged at rotationally symmetrical positions in cross-section so as to cancel each other's reaction forces of jets generated when the explosive explodes.

  In the present invention, the plurality of grooves are formed in a V shape.

  Further, in the present invention, the above-described blast cutting of the present invention is used as a separating device for separating the flying body main body and the fuel tank in a flying body including a fuel tank in which fuel for burning and flying is stored. A device is used.

According to the present invention, it has a molded explosion broken line provided with a liner filled with explosives, and an initiation device connected to the molded explosion broken line, and the liner has a plurality so as to face a plurality of objects to be cut. By adopting the configuration that the groove part is formed, the explosives inside the liner with the plurality of groove parts explode by operating the detonator, and the liner is crushed by the explosive force generated at that time. By forming a high-temperature, high-pressure, high-speed jet and causing the jet to collide with a plurality of objects to be cut, a plurality of objects to be cut can be cut simultaneously. Further, unlike Patent Documents 1 and 2, it is not necessary to install a shielding plate between a plurality of V-shaped molded broken lines, so that the entire apparatus can be reduced in weight and can have a simple structure.
Therefore, according to the present invention, it is possible to provide a blast cutting device having a simple structure that can simultaneously cut a plurality of objects to be cut and reduce the weight of the entire device.

It is a schematic diagram which shows schematic structure of the blast cutting apparatus of this invention. It is a schematic diagram which shows schematic structure of a molding explosion broken line. It is a schematic diagram which shows schematic structure of the shaping | molding explosion broken line of another form. It is a figure which shows schematic structure of the flying body in which the blast cutting apparatus of this invention is used. It is a schematic diagram which shows the V type | mold shaping | molding broken line of patent documents 1 and 2. FIG.

  Embodiments of the present invention will be described below with reference to the drawings. This embodiment shows one aspect of the present invention, and does not limit the present invention, and can be arbitrarily changed within the scope of the technical idea of the present invention. Moreover, in the following drawings, in order to make each structure easy to understand, an actual structure and a scale, a number, and the like in each structure are different.

(Blowing and cutting device)
FIG. 1 is a schematic view (side view) showing a schematic configuration of a blast cutting device 1 of the present invention. As shown in FIG. 1, the blast cutting device 1 includes a molded explosion broken line 10 and an initiation device 20.

  The molded broken line 10 includes a liner 11 that is filled with an explosive 12. For example, a metal liner can be used as the liner 11. Details of the molding explosion broken line 10 will be described later (see FIG. 2).

  The detonator 20 is connected to the molded explosion broken line 10. The initiation device 20 includes an ignition device 21, an explosion conductor 22, an explosion transmission block 23, and an initiation tube 24.

  The ignition device 21 receives an input signal from the electric wire 25 and detonates the explosive loaded therein, and transmits this detonation to the detonation wire 22. The ignition device 21 is equipped with a safe arm device (not shown) for cutting off the power line in order to prevent erroneous ignition. A plurality of ignition devices 21 are provided to ensure redundancy.

  The detonation wire 22 transmits detonation generated by the ignition device 21 to the explosion transmission block 23. The explosive wire 22 is filled with explosives.

  The explosion transmission block 23 transmits the detonation transmitted from the detonation wire 22 to the detonator tube 24. The explosive block 23 is not loaded with explosives.

  The detonator tube 24 is ignited by the detonation transmitted from the explosion transmission block 23 and ignites the molded explosion broken line 10. With the above configuration, the explosive 12 inside the molded explosion broken line 10 can be ignited safely and reliably.

  FIG. 2 is a schematic diagram showing a schematic configuration of the molding explosion broken line 10 of the present embodiment. FIG. 2A is a front view of the molding explosion broken line 10. FIG. 2B is a side view of the molded explosion broken line 10 (left side view of FIG. 2A). FIG.2 (c) is sectional drawing along the AA line of Fig.2 (a).

  As shown in FIG. 2A, one end of the shaped explosion broken line 10 is connected to the initiator tube 24. Further, a groove 13 is formed in the liner 11.

  As shown in FIG. 2B, the other end (end portion) of the molding explosion broken line 10 has a circular shape in a side view. The liner 11 has a rectangular shape in side view.

  As shown in FIG. 2C, two groove portions 13 are formed in the liner 11 at positions facing two objects to be cut 30 (for example, metal plates) arranged in two different directions (reverse directions). Has been. The two groove portions 13 are each molded into a V shape.

  For this reason, the explosive 12 in the liner 11 in which the two groove portions 13 are formed explodes by operating the detonator 20, and the liner 11 is crushed by the explosive force generated at that time, thereby causing high temperature, high pressure, and high speed. The jet 14 can be formed. Further, unlike Patent Documents 1 and 2, it is not necessary to install a shielding plate between a plurality of V-shaped molded broken lines.

  Moreover, the two groove parts 13 are each formed in the same magnitude | size. Moreover, the two groove parts 13 are arrange | positioned so that the reaction force of the jet 14 generated when the explosive 12 may explode may mutually cancel. The shaped explosion broken line 10 of the present embodiment is rotationally symmetric (180 degrees symmetrical) in cross section. As a result, the jet 14 is formed in a well-balanced size in both of the two groove portions 13 without being formed largely in one of the two groove portions 13.

  The two groove portions 13 are separated from the two objects to be cut 30 by a predetermined distance. For example, the shaped explosion broken line 10 is preferably fixed to the object to be cut 30 with a predetermined distance away via a holder (not shown). Thereby, since the explosive 12 in the molding explosion broken line 10 is not affected by the temperature of the object 30 to be cut, the jet 14 grows to a sufficient size (the object 30 can be cut). Formed in size).

  Therefore, in this embodiment, the explosive 12 inside the liner 11 in which the two groove portions 13 are formed explodes by operating the detonator 20, and the liner 11 is crushed by the explosive force generated at that time, thereby causing a high temperature. A high-pressure, high-speed jet 14 can be formed. And the two to-be-cut objects 30 can be cut | disconnected simultaneously by making the jet 14 collide with the two to-be-cut objects 30. FIG. Moreover, since it is not necessary to install a shielding board between two V type | mold shaping | molding explosion broken lines like patent document 1 and 2, the weight as a whole apparatus can be reduced and it can be set as a simple structure.

  In the present embodiment, the two groove portions 13 are formed in the same size, and the two groove portions 13 are arranged at rotationally symmetrical positions in cross section so that the reaction forces of the jets 14 cancel each other. The jet 14 is formed in a well-balanced size in both of the two groove portions 13 without being formed largely in one of the two groove portions 13. Therefore, since the jets 14 having the same size collide with the two objects to be cut 30, the two objects to be cut 30 can be reliably cut simultaneously.

  Moreover, in this embodiment, since the two groove parts 13 are shape | molded by V shape, the jet 14 of the magnitude | size which can fully cut | disconnect the to-be-cut | disconnected target object 30 can be formed. Therefore, since the jets 14 that are formed in sufficient sizes respectively against the two objects to be cut 30 collide, the two objects to be cut 30 can be surely cut simultaneously.

  In addition, although the groove part 13 of this embodiment is V type, it is not restricted to this. For example, the groove 13 may be U-shaped, and the shape can be appropriately set as necessary.

  In addition, the molded explosion broken line 10 of the present embodiment is rotationally symmetric (180 degrees symmetrical) in sectional view, but is not limited thereto. For example, the blast cutting device 1 capable of simultaneously cutting two objects to be cut by appropriately setting the arrangement of the two groove portions 13, the cross-sectional shape of the explosive 12 (liner 11), and the thickness distribution of the liner 11. Can be provided.

  FIG. 3 is a schematic diagram showing a schematic configuration of a molding explosion broken line 10A having a different form from the molding explosion broken line 10 described above. FIG. 3A is a front view of the molding explosion broken line 10A. FIG. 3B is a side view of the molded explosion broken line 10A (left side view of FIG. 3A). FIG.3 (c) is sectional drawing along the BB line of Fig.3 (a). FIG. 3 is a schematic diagram showing a schematic configuration of a molding explosion broken line 10A corresponding to FIG. As shown in FIG. 3, the molding explosion broken line 10A is different from the above-described molding explosion broken line 10 in that three grooves 13 are formed in the liner 11A. Since the other points are the same as those of the above-described molded explosion broken line 10, the same elements as those in FIG.

  As shown in FIG. 3, the liner 11 </ b> A has a hexagonal shape when viewed from the side. Further, the groove 11 is formed in the liner 11 at a position facing the three objects to be cut 30 arranged in three different directions.

  For this reason, the explosive 12 in the liner 11 in which the three grooves 13 are formed explodes by operating the detonator 20, and the jet 14 is formed by crushing the liner 11 by the explosive force generated at that time. Can do. And the three to-be-cut objects 30 can be cut | disconnected simultaneously by making the jet 14 collide with the three to-be-cut objects 30. FIG.

  Moreover, the three groove parts 13 are each formed in the same magnitude | size. Moreover, the three groove parts 13 are arrange | positioned so that the reaction force of the jet 14 may mutually cancel. The shaped explosion broken line 10A of the present embodiment is rotationally symmetric (120 degrees symmetrical) in cross section. As a result, the jet 14 is formed with a well-balanced size in the three directions without being formed largely in any one of the three groove portions 13.

  Note that the number of grooves formed in the liner is not limited to two or three as described above, and may be four or more, for example. That is, it is only necessary that the liner be formed with a plurality of grooves at positions facing a plurality of objects to be cut arranged in different directions. Thereby, the blast cutting device which can cut | disconnect a several to-be-cut object simultaneously can be provided.

(Flying object)
FIG. 4 is a schematic diagram showing a schematic configuration of the flying object 100 in which the blast cutting device of the present invention is used. FIG. 4A is a diagram illustrating an arrangement state of the blast cutting device in the flying object 100. FIG. 4B is a diagram illustrating a plurality of cut portions in the flying object 100. In addition, in FIG.4 (b), illustration of the initiation apparatus 20 connected to the molding explosion broken line 10A is abbreviate | omitted.

  The flying object 100 of the present invention is a flying object (rocket or missile) that flies by burning fuel from the fuel tank 120 provided in the flying object main body 110. The above-described blast cutting device is used as a separation device that separates the flying body 110 and the fuel tank 120.

  As shown in FIG. 4A, the flying object 100 has a cylindrical flying object body 110. The molding broken line 10 is installed along the inner surface of the flying body 110. Further, the molding explosion broken line 10 is installed with a predetermined distance away from the inner surface of the flying body main body 110 via the holder 40.

  In addition, although the shaping | molding explosion broken line 10 is connected continuously, it is not restricted to this. For example, when there is an opening (location where the flying body main body 110 is not provided) in the installation path of the molding explosion broken line 10, the opening may be interrupted.

  As shown in FIG. 4B, the explosion transmission block 23 and the initiation tube 24 are fixed to the inner surface of the rocket main body 110. The explosive wire 22 is installed along the outer surface of the flying body 110. The ignition device 21 is fixed to the inner surface of the flying body main body 110.

  The molded explosion broken line 10 has a holder 40 interposed between the flying body main body 110 and the fuel tank 120 so that the two grooves 13 formed in the liner 11 face the flying body main body 110 and the fuel tank 120, respectively. is set up. With such a configuration, the flying body main body 110 and the fuel tank 120 can be cut simultaneously. Further, a flange 111 is formed at a connection portion between the flying body main body 110 and the fuel tank 120. The molding explosion broken line 10 can be installed in places other than this flange formation part.

  On the other hand, in the molded explosion line 10A, the three grooves 13 formed in the liner 11A are positioned to face the lower wall 112 to which the engine 130 is connected via the flying body 110, the fuel tank 120, and the thrust 140, respectively. As described above, the flying body main body 110, the fuel tank 120, and the lower wall portion 112 are installed via the holder 40. With such a configuration, the flying body main body 110, the fuel tank 120, and the lower wall portion 112 can be cut simultaneously.

  According to the flying object 100, since the above-described blast cutting device 1 of the present invention is provided, the flying object main body 110 and the fuel tank 120 are separated from each other when an abnormality occurs in the flying object (rocket or missile). When it is necessary to do so, the flying body 110 for fixing the fuel tank 120 and the fuel tank 120 can be cut at the same time, so that damage to the ground can be suppressed. In addition, unlike Patent Documents 1 and 2, there is no need to install a shielding plate between a plurality of V-shaped molded broken lines, so that the weight of the flying object as a whole can be reduced and a simple structure can be achieved.

  The blast cutting device 1 of the present invention is not limited to a separation device that separates the flying body 110 and the fuel tank 120. Can be used.

DESCRIPTION OF SYMBOLS 1 ... Blast cutting device 10, 10A ... Molding broken line 11, 11A ... Liner, 12 ... Explosive, 13 ... Groove part, 14 ... Jet, 20 ... Detonation device, 30 ... Object to be cut, 100 ... Flying object, 110 ... Flying body, 120 ... Fuel tank

Claims (5)

A molded explosion line with a liner filled with explosives;
A detonator connected to the molded explosion line,
The blast cutting apparatus according to claim 1, wherein a plurality of grooves are formed in the liner so as to face a plurality of objects to be cut.   The blast cutting device according to claim 1, wherein the plurality of grooves are formed in the same size.   3. The blast cutting device according to claim 1, wherein the plurality of grooves are arranged at rotationally symmetric positions in cross-section so as to cancel each other's reaction forces of jets generated when the explosive explodes. .   The blast cutting device according to any one of claims 1 to 3, wherein the plurality of grooves are formed into a V shape. In a flying object equipped with a fuel tank that contains fuel to burn and fly,
The flying body according to any one of claims 1 to 4, wherein the blast cutting device according to any one of claims 1 to 4 is used as a separating device for separating the flying body main body and the fuel tank.

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