EP3044535B1 - Construction kit and method for producing a destructive charge containing a hollow charge - Google Patents

Description

The invention relates to a kit for producing a hollow charge containing Zerstörladung for non-contact destruction of ordnance. The invention further relates to a method for producing a discharge charge using such a kit.

From the DE 36 23 240 C1 is a destructive charge for non-contact ordnance disposal (EOD = Explosive Ordnance Disposal) by means of a hollow charge known. In this case, the breakdown power of the hollow charge is chosen such that it penetrates though the shell of ammunition to be defused, however, the ammunition no longer brings to the detonation of their explosive charge. As a result, a relatively safe disposal of the ammunition by removing the explosive charge or by their burning done.

In the DE 36 23 240 C1 is also mentioned to make the setting of the desired breakdown power of the hollow charge precise dosage of their plastic explosive on site. However, this document can be found no evidence how such a Zerstörladung is constructed so that the dosage of explosives can be done on site. In addition, in the DE 36 23 240 C1 mentions that in-situ metering of the explosive results in inhomogeneities, such as blisters in the explosive charge, which make it almost impossible to accurately set the impact performance in practice.

Finally, out of the EP 1 095 238 B1 It is known to design the hollow charge insert of the destruction charge as a projectile-forming charge, wherein the insert is to consist of a non-electrically conductive, amorphous material.

A disadvantage of the known, ready-mounted Zerstörladungen, inter alia, that with their storage and their transport, a high logistics effort and in terms of a possible loss of a high monitoring effort is connected.

The DE 603 18 298 T2 , which forms a starting point for the invention, discloses an apparatus for destroying exploratory means. The plastic destruction mechanism consists of a cylinder provided with an axial tube serving to support the triggering means. During the charging process, the detonator (trigger means) can be occupied by a blind detonator. The charging process consists of loading a measured amount of plastic explosive into a cavity in the destructing mechanism that extends from the end of the blind detonator to the rear wall of the shaped charge liner. When the maximum amount of explosive is used, the leading edge of the shaped charge ring is located in the same plane or a few millimeters protruding from the edge of the destruction mechanism. The shaped charge liner and the explosive are held by a threaded consolidation ring which is screwed onto the destruction mechanism. If less explosive is used, at least one spacer ring between the inner bridge of the consolidation ring and the hollow charge insert is to be integrated. The filling with explosive material is such that it is introduced into the body from the open side and compressed, conventionally compressed by manual stamping, then further compressed by the consolidation ring acting on the front surface of the shaped charge liner. In the other filling process end stops are involved, to which the consolidation ring and any spacers must strike.

The invention has for its object to significantly reduce the logistics and security costs for Zerstörladungen.

This object is achieved in that the Zerstörladung not kept as a ready-mounted charge, ie stored and transported, but that all non-safety-related components, such as the preferably tubular housing element of the Zerstörladung, the shaped charge liner and provided for receiving the detonator cap, as Kit to be stored and transported separately. The Zerstörladung is then mounted on site, provided that each blasting authorized in ordnance disposal operations their use for non-contact wringing of Ammunition etc. is considered necessary. As an explosive for the shaped charge can then usually in ordnance disposal operations already present formable explosives, such as PETN (Nitropenta), Semtex (trade name for a Nitropenta and hexogen mixture of the Czech company Synthesia), C-4 (Composition consisting of 91% Hexogen, 5.3% polyisobutylene + plasticizer), etc. can be used. As a detonator usually come electric detonators, namely U-detonator (insensitive) or HU igniter (highly insensitive) are used.

By using a kit according to the invention, the logistics and security costs for the corresponding Zerstörladungen is substantially reduced, since the individual parts of the kit are not subject to approval and monitoring. Furthermore, no shelf life periods must be observed.

In order to ensure a reproducible breakdown power of the destructive charge after their assembly, provided for igniter cap and a kit also associated loading aid are designed so that when mounting the Zerstörladung one hand, the axial position of the shaped charge liner can be accurately positioned and that on the other hand on the moldable Explosive pressure can be exerted that is sufficient so that after the pressing operation of the explosive positively against the wall portions of the tubular housing member, the shaped charge liner and the cap, so that bubbles in the explosive and air pockets between the explosive and the adjacent parts are safely avoided.

For this purpose, the loading aid comprises a base part and a top side adjoining the base part, preferably cylindrical upper part, the base portion facing away from the front portion is preferably conical and at least partially corresponds to the inner edge contour of the insert. The upper part of the loading aid can be inserted through the opening in the second end face into the tubular housing element and serves as an abutment in the pressing operation of the explosive and for determining the distance of the shaped charge liner from the second end face of the tubular housing element.

It has proven to be advantageous if the tubular housing element of the kit is hardboard, so that when using the destructive charge no Significant lateral fragmentation occurs and the danger zone when using the charge is lower than in comparable known Zerstörladungen.

The hollow charge insert may be a metal, preferably copper. However, if a metal-free Zerstörladung must be used to prevent an influence of the weapon by the deposit metal for the elimination of electronic ordnance, the hollow charge insert of a non-metal, preferably glass, consist.

It has also proven to be useful if the kit for non-contact wringing of ordnance includes wires with which - if necessary - spacers (for example, a three-leg) can be formed, which are then attached to the housing element of the fully assembled Zerstörladung.

For mounting the destruction charge with the aid of the kit according to the invention, the base part of the loading aid is first positioned on a solid surface. Subsequently, the hollow charge insert of the kit is pressed with the front portion of the upper part through the opening of the second end face of the tubular housing member in the predetermined by the minimum distance (stand off) of the shaped charge liner to the destroying ordnance position. Then, the existing explosive is preformed and introduced through the opening of the first end face into the preferably tubular housing element. Subsequently, the cap is pressed with its designed as a press die lower part against the explosive and then used as U or HU igniter trained electric detonator in the axial bore of the cap.

It has proven to be advantageous if the pressure exerted on the explosive pressing pressure is selected such that the explosive 1 to 2mm rises in the axial bore of the cap, so that a reliable ignition of the explosive is ensured by the detonator.

Alternatively, a loading die can be used, which can also serve as a means of transport of the other parts of the kit.

Fig. 1

einen aus einem rohrförmigen Gehäuseelement, einer Hohlladungseinlage, einer Kappe und einer Ladehilfe bestehenden erfindungsgemäßen Bausatz,

Fig. 2

eine teilweise im Längsschnitt dargestellte Zerstörladung, die aus dem Bausatz gemäß Fig. 1 sowie einem formbaren Sprengstoff und einem elektrischen Sprengzünder vor Ort montiert wurde und

Fig. 3

eine Zerstörladung mit einem aus drei Drähten geformten Abstandshalter,

Fig. 4

eine Transportdarstellung des Bausatzes,

Fig. 5

eine Darstellung einer Lade-Matrize.

Further details and advantages of the invention will become apparent from the following, with reference to figures explained embodiments. Show it:

Fig. 1

a kit consisting of a tubular housing element, a hollow charge insert, a cap and a loading aid,

Fig. 2

a partially shown in longitudinal section Zerstörladung, from the kit according to Fig. 1 and a malleable explosive and an electric detonator was mounted on site and

Fig. 3

a destructive charge with a three-wire spacer,

Fig. 4

a transport representation of the kit,

Fig. 5

an illustration of a loading matrix.

In Fig. 1 1 denotes a kit for producing a charge carrier containing a shaped charge. The kit 1 comprises a preferably tubular housing element 2 made of hard cardboard with a first end face 3 and a second end face 4. In addition, the kit 1 comprises a tubular shaped element 2 adapted conical hollow charge insert 5 preferably made of copper and serving as a detonator cap 6. Die Kappe 6 includes an axial bore 60 for receiving an electric detonator and has a lower part 61, which is designed as a press ram. In addition, the kit 1 is associated with a loading aid 7, which has a base part 8 and an adjoining the base part 8 upper part 9, the base part 8 facing away from the front portion 10 is conical and at least partially corresponds to the inner conical edge contour of the shaped charge insert 3. The upper part 9 is matched in shape to the shape of the housing element 2. If the housing element 2 is tubular, then the upper part 9 is cylindrical, etc.

If a destructive charge 100 is to be produced locally from the kit 1 and an existing moldable explosive and a detonator, the base part 8 of the loading aid 7 can first be positioned on a solid base 11 (FIG. Fig. 2 ).

Subsequently, the hollow charge insert 5 is pressed with the front portion 10 of the upper part 9 through the opening of the second end face 4 of the housing element 2 in the predetermined by the minimum distance (stand off) of the shaped charge liner 5 to the destroying ordnance position.

Then the explosive is preformed and the preformed explosive 12 is introduced through the opening of the first end face 3 into the housing element 2.

Subsequently, the cap 6 is pressed with its trained as a press die base 61 against the explosive 12, such that the force exerted by the cap 6 on the explosive pressure enough to push explosives 1 to 2 mm in the axial bore 60 of the cap 6.

Finally, a suitable detonator (U or HU igniter) 13 is inserted into the axial bore 60 of the cap 6.

Since it is important to note that a certain minimum distance (stand-off) to the weapon must be present in non-contact destruction of warheaded ordnance, it is often necessary for the destruct load 100 to be attached to a corresponding spacer in front of the ordnance to be destroyed.

Such a spacer 15 formed of wires 14 is shown in FIG Fig. 3 shown together with the fully assembled destruct charge 100.

Fig. 4a shows the kit 1 with its housing or housing element 2 in the transport position. The representation in Fig. 4b is a sectional view in section AA Fig. 4a , Clearly missing here is the explosives.

In Fig. 5 a loading die 20 is shown. The charging die 20 comprises a housing 21 into which the housing element 2 of the kit 1 'can be introduced. A paper roll 2 'or the like can also be used for a length compensation between the dimensions of the housing 21 and the housing element 2 of the kit 1'. The housing 21 of the loading die 20 can be closed by two covers 22, 23. Embedded in the lower cover 23 is a conical punch 24, which points in the direction of the housing element 2 when closing the opening 25, 26. The punch 24 is in turn adjustable placed in the lid 23 and can be secured in its final position by means of nuts 27, 28, but at least one. Integrated in the upper cover 22 is a counter-holder 29, which likewise extends into the housing element 2 of the kit 1 'when the destructive charge containing a hollow charge is produced. In or on the counter-holder 29 engages the explosive charge 12 forming ram 61 on or. The counter-holder 29 has a passage or axial bore 30 and is also secured by nuts 31, 32, but at least one. Alternatives to securing with a nut, as well as for the stamp, a sap, etc. be. Those are well known to the skilled person.

The individual steps for the production can proceed similarly as described for the loading aid 7. Thus, the lid 23 can be screwed or latched onto the housing 21. With the help of the punch 24 contained in the cover 24, the previously introduced hollow charge insert 5 is pressed into the housing element 2 in the predetermined position, the punch 24 secured. The preformed explosive 12 may preferably be introduced into the housing element 2 through the upper opening 25 of the loading die 20 and the first end face 3. Again, the punch 24 is used after the introduction of the explosive 12 in the housing element 2 this form fit to the wall portions of the adjoining housing element 2, the hollow charge insert 5 and the underside of the lower part 61 to press. By closing the upper lid 22, the counter-holder 29 engages the lower part 61 and centers it. The counter-holder 29 may be omitted if the lower part 61 is directly connected to the lid 22. The suitable detonator (U or HU detonator) 13 is introduced through a passage or axial bore 30 in the counter holder 29 or in the cover 22. The destruction charge obtained in this way can be in a spacer 15 after Fig. 3 be introduced.

Alternatively, the manufacture or introduction of the individual parts of the kit 1 'can also take place only through one of the openings 25, 26.

LIST OF REFERENCE NUMBERS

1, 1 '

kit

2, 2 '

housing element

3

first end face

4

second end face

5

Shaped charge liner

6

cap

60

axial bore

61

lower part

7

loading aid

8th

base

9

top

10

front area

11

underground

12

explosive

13

detonators

14

wire

15

spacer

20

Loading template

21

casing

22, 23

cover

24

stamp

25, 26

housing openings

27, 28

mother

29

against mount

30, 30 '

axial bore

31, 32

mother

100

Zerstörladung

Claims (12)

1. Construction kit (1) for producing a destructive charge (100) containing a hollow charge for bomb disposal, consisting of

   • a tubular housing element (2) with two open end faces (3, 4), into which the hollow charge consisting of a hollow charge insert (5) and an explosive (12) can be inserted, wherein the explosive (12) is mouldable,

   • a hollow charge insert (5), which is preferably conical or hemispherical,

   • a cap (6) for closing the opening in the first end face (3) of the housing element (2) that is facing the explosive (12), the cap (16) having an axial bore (60) for receiving an electrical detonator (13) and comprising on its underside, facing the explosive (12) in the fitted state, a lower part (61), which is formed as a pressing ram,

   • a loading aid (7), which comprises a base part (8) and an upper part (9) which adjoins thereto and the front region (10) of which, facing away from the base part (8), is formed in a conical or hemispherical manner and corresponds at least partially to the inner peripheral contour of the hollow charge insert (5), wherein the upper part can be inserted with the hollow charge insert (5) through the opening in the second end face (4) into the housing element (2), in order to serve as a counter bearing during a process of pressing the explosive (12), wherein, after the pressing process, the explosive (12) lies in a form-fitting manner against the wall regions of the tubular housing element (2), the hollow charge insert (5) and the cap (6).
2. Construction kit (1') for producing a destructive charge (100) containing a hollow charge for bomb disposal, consisting of:

   • a tubular housing element (2) with two open end faces (3, 4), into which the hollow charge consisting of a hollow charge insert (5) and an explosive (12) can be inserted, wherein the explosive (12) is mouldable,

   • a hollow charge insert (5), which is preferably conical or hemispherical,

   • a loading cartridge (20) for receiving the housing element (2), the explosive (12) and the hollow charge insert (5), wherein

   • the loading cartridge (20) comprises a housing (21), which has two openings (25, 26), which can each be closed by a cover (22, 23),

   • incorporated in the lower cover (23) is a conical or hemispherical ram (24), which corresponds at least partially to the inner peripheral contour of the hollow charge insert (5) and is forced with the hollow charge insert (5) into the housing element (2) in order to serve as a counter bearing during a process of pressing the explosive (12),

   • the upper cover (22) has an axial bore (30) and interacts with a lower part (61), which is formed as a pressing ram and comprises an axial bore (60), wherein these bores (30, 60) receive an electrical detonator (13), wherein, after the pressing process, the explosive (12) lies in a form-fitting manner against the wall regions of the tubular housing element (2), the hollow charge insert (5) and the lever part (61).
3. Construction kit (1) according to Claim 1, characterized in that the upper part (9) serves as a counter bearing during the process of pressing the explosive (12) and serves for fixing the distance of the hollow charge insert (5) from the second end face (4) of the upper part (9).
4. Construction kit (1, 1') according to one of Claims 1 to 3, characterized in that the material of the housing element (2) is fibreboard.
5. Construction kit (1, 1') according to one of Claims 1 to 4, characterized in that the hollow charge insert (5) is copper or glass.
6. Construction kit (1, 1') according to one of Claims 1 to 5, characterized in that the electrical detonator (13) is a U or HU detonator.
7. Construction kit (1, 1') according to one of Claims 1 to 6, characterized in that the construction kit (1, 1') comprises a number of wires (14), with which a spacer (15) can be put together.
8. Construction kit (1, 1') according to one of Claims 1 to 7 for remotely controlled bomb disposal.
9. Construction kit (1, 1') according to one of Claims 1 to 8 for producing a destructive charge on site.
10. Method for assembling a destructive charge (100) with the aid of a construction kit (1) specified in Claims 1 and 3 to 9, with the following features:

    a) first the base part (8) of the loading aid (7) is positioned on a fixed base (11);

    b) subsequently the hollow charge insert (5) is forced with the front region (10) of the upper part (9) through the opening in the second end face (4) of the housing element (2) into the position predetermined by the minimum distance (stand-off) of the hollow charge insert (5) in relation to the bomb intended for disposal;

    c) then the preformed explosive (12) and after that the cap (6) serving as a detonator holder are introduced through the opening in the first end face (3) into the housing element (2), and the lower part (61) of the cap (6) is pressed against the explosive (12) in such a way that the pressing pressure exerted on the explosive (12) by the cap (6) is sufficient to press the explosive (12) in a form-fitting manner against the wall regions of the housing element (2), the hollow charge insert (5) and the cap (6);

    d) finally the electrical detonator (13) is inserted into the axial bore (60) of the cap (6).
11. Method for assembling a destructive charge (100) with the aid of a construction kit (1') specified in Claims 2 and 4 to 9, with the following features:

    a) the housing element (2) is introduced into the housing (21) of the loading cartridge (20),

    b) subsequently the hollow charge insert (5) is forced with the aid of the ram (24) through the opening in the second end face (4) of the tubular housing element (2) into the position predetermined by the minimum distance (stand-off) of the hollow charge insert (5) in relation to the bomb intended for disposal:

    c) then a preformed explosive (12) and after that the lower part (61) serving as a detonator holder are introduced through the opening (25), and consequently through the opening in the first end face (3), into the housing element (2), and the lower part (61) is pressed with the aid of the upper cover (22) against the explosive (12) in such a way that the pressing pressure exerted on the explosive (12) by the lower part (61) is sufficient to press the explosive (12) in a form-fitting manner against the wall regions of the housing element (2), the hollow charge insert (5) and the lower part (61);

    d) finally the electrical detonator (13) is inserted into the axial bore (30, 60).
12. Method according to Claim 10 or 11, characterized in that the pressing pressure exerted on the explosive (12) by the lower part (61) on the cap (6) is chosen such that the explosive (12) rises up 1 mm to 2 mm in the axial bore (60) of the cap (6) or of the lower part (61).

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