EP1229299A2 - Projectile and method for manufacturing such a projectile - Google Patents

Projectile and method for manufacturing such a projectile Download PDF

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Publication number
EP1229299A2
EP1229299A2 EP02000639A EP02000639A EP1229299A2 EP 1229299 A2 EP1229299 A2 EP 1229299A2 EP 02000639 A EP02000639 A EP 02000639A EP 02000639 A EP02000639 A EP 02000639A EP 1229299 A2 EP1229299 A2 EP 1229299A2
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EP
European Patent Office
Prior art keywords
projectile
thread
igniter
detonator
permanently elastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02000639A
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German (de)
French (fr)
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EP1229299A3 (en
EP1229299B1 (en
Inventor
Ralf Aumund-Kopp
Ernst-Wilhelm Altenau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall W&M GmbH
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Publication date
Application filed by Rheinmetall W&M GmbH filed Critical Rheinmetall W&M GmbH
Publication of EP1229299A2 publication Critical patent/EP1229299A2/en
Publication of EP1229299A3 publication Critical patent/EP1229299A3/en
Application granted granted Critical
Publication of EP1229299B1 publication Critical patent/EP1229299B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/0838—Primers or igniters for the initiation or the explosive charge in a warhead

Definitions

  • the invention relates to a projectile with a shell and a front with the Bullet casing can be connected via a screw connection to the head igniter according to the characteristics of the preamble of claim 1.
  • the invention further relates to a method for the manufacture of such a projectile.
  • artillery shells are increasingly required to be delivered to the respective customer with a detonator.
  • the detonator In addition to its previous function, the detonator must therefore close the projectile in the target area ignite or bring to effect, also the function, the projectile during storage and reliably seal and transport against ingress of moisture, the connection being subjected to the usual stresses (temperature changes, vibrations etc.) must withstand.
  • This is currently achieved in that commercial sealing Anaerobically curing sealants are used, some of which at the same time as Belay means work.
  • the respective sealant or securing agent is used before Screwed together applied to the external thread of the igniter.
  • a disadvantage of these bullets provided with a preassembled head detonator is, however, that disassembly of the igniter after curing of the sealant hardly is more possible because the adhesive force in the thread is so high that a non-destructive It is usually not possible to detach the igniter. Because those commonly used today Head detonators have a heavy-duty external thread, but they do there is a connection between the rear part of the Detonator and the detonator tip also via a screw connection, which when unscrewing of the detonator can be damaged relatively easily due to the large starting torques can.
  • the present invention has for its object a floor of the aforementioned Specify type, the top match is easily replaced by a new one Detonator - for example, still in the combat position by the appropriate soldier exchange leaves. A method for producing such a projectile is also intended be disclosed.
  • the invention is essentially based on the idea that between the external thread and the mouth thread not a hardening compound as a sealant as before, but a permanently elastic sealant is arranged.
  • the permanently elastic Sealant e.g. applied in viscous form to the external thread of the igniter.
  • the detonator can then be used or at a suitable later time (e.g. after several months) are screwed onto the shell. This completes the thread gap between the outer and outer threads of the projectile filled in and gives a good sealing effect, without the detachability of the igniter to affect negatively.
  • the use of the permanently elastic sealant also has the advantage that existing igniter can still be used. A change in A connection between the rear part of the igniter and the igniter tip is therefore not necessary.
  • Pre-coated detonators can be screwed to the shell immediately or up to be stored for several years at room temperature.
  • the figure shows the front area of a spin-stabilized artillery projectile denoted by 1.
  • the projectile 1 comprises a projectile casing 2 in which explosives 3 is located, and a detonator 4.
  • the detonator provided with an external thread 5 4 is screwed into an internal thread (mouth thread) 6 of the projectile casing 2.
  • a permanently elastic sealant 7 arranged between the threads of the two threads 5, 6 is a permanently elastic sealant 7 arranged.
  • the head igniter 4 is made up of an igniter tip 8 and a detonator tail 9 together, which encloses an amplifier charge 10.
  • Detonator tail 9 and detonator tip 8 are via a relatively weak threaded connection 11 connected to each other, which is secured via an anti-rotation device 12.
  • the permanently elastic sealant 7 is first viscous Form on the external thread 5 of the igniter 4 and / or on the mouth thread 6 of the shell 2 applied. All that is required is the thread that is pre-coated should be clean and fat-free. Then the pre-coated Head fuze 4 are then immediately screwed to the shell 2.

Abstract

A projectile comprises a sleeve (2) and a detonation head (4) connected to the sleeve via a screw connection. The detonation head has an outer thread (5) while the sleeve has an inner thread (6). A permanently elastic sealant (7) is located between the two threads.

Description

Die Erfindung betrifft ein Geschoß mit einer Geschoßhülle und einem vorderseitig mit der Geschoßhülle über eine Schraubverbindung verbindbaren Kopfzünder nach den Merkmalen des Oberbegriffes des Anspruchs 1. Die Erfindung bezieht sich ferner auf ein Verfahren zur Herstellung eines derartigen Geschosses.The invention relates to a projectile with a shell and a front with the Bullet casing can be connected via a screw connection to the head igniter according to the characteristics of the preamble of claim 1. The invention further relates to a method for the manufacture of such a projectile.

Artilleriegeschosse werden häufig ohne Kopfzünder an den jeweiligen Beschaffer der entsprechenden Munition ausgeliefert, wobei anstelle des Zünders eine sogenannte Heberingverschlußschraube in das Innengewinde (Mundlochgewinde) der Geschoßhülle eingeschraubt wird. Zur Vermeidung von Korrosion wird das Gewinde mit Silikonfett großzügig eingestrichen. Die Abdichtung gegen Feuchtigkeit erfolgt durch einen flachen Gummiring. Die massive Heberingverschlußschraube kann stets mit ausreichendem Drehmoment angezogen werden, so daß sich eine zuverlässige Dichtung zum Geschoßinneren ergibt. Das Einschrauben des Kopfzünders in die Geschoßhülle erfolgt erst unmittelbar vor dem Geschoßeinsatz, z.T. sogar erst direkt vor der Schußabgabe in der Feuerstellung, so daß die Auswahl des Zünders (Zeitzünder, Betonbrechzünder etc.) an die spezifischen Bedürfnisse des jeweiligen Einsatzfalles ausgerichtet werden können.Artillery shells are often without a detonator on the respective procurer of the corresponding Ammunition delivered, with a so-called lifting ring screw instead of the detonator screwed into the internal thread (mouth hole thread) of the projectile casing becomes. To avoid corrosion, the thread with silicone grease becomes generous pocketed. A flat rubber ring seals against moisture. The massive lifting ring locking screw can always be tightened with sufficient torque be, so that there is a reliable seal to the interior of the floor. The The head fuse is screwed into the projectile casing only immediately before use of the projectile, z.T. even just before firing in the firing position, so that Selection of the detonator (time detonator, concrete breaker detonator, etc.) to meet specific needs of the respective application can be aligned.

Im Zusammenhang mit neuen Logistikkonzepten wird zunehmend gefordert, Artilleriegeschosse bereits mit einem Kopfzünder versehen an den jeweiligen Kunden auszuliefern. Der Zünder muß daher neben seiner bisherigen Funktion, das Geschoß im Zielgebiet zu zünden bzw. zur Wirkung zu bringen, zusätzlich auch die Funktion, das Geschoß bei Lagerung und Transport gegen eindringende Feuchtigkeit zuverlässig abzudichten, übernehmen, wobei die Verbindung den üblichen Beanspruchungen (Temperaturwechsel, Vibrationen etc.) standhalten muß. Dieses wird derzeit dadurch erreicht, daß zur Abdichtung handelsübliche anaerob aushärtende Dichtmittel verwendet werden, die z.T. gleichzeitig auch als Sicherungsmittel wirken. Dabei wird das jeweilige Dicht- oder Sicherungsmittel vor dem Zusammenschrauben auf das Außengewinde des Kopfzünders aufgetragen.In connection with new logistics concepts, artillery shells are increasingly required to be delivered to the respective customer with a detonator. In addition to its previous function, the detonator must therefore close the projectile in the target area ignite or bring to effect, also the function, the projectile during storage and reliably seal and transport against ingress of moisture, the connection being subjected to the usual stresses (temperature changes, vibrations etc.) must withstand. This is currently achieved in that commercial sealing Anaerobically curing sealants are used, some of which at the same time as Belay means work. The respective sealant or securing agent is used before Screwed together applied to the external thread of the igniter.

Nachteilig ist bei diesen mit einem vormontierten Kopfzünder versehenen Geschossen allerdings, daß eine Demontage des Zünders nach dem Aushärten des Dichtmittels kaum mehr möglich ist, weil die Klebkraft im Gewinde so hoch ist, daß ein zerstörungsfreies Lösen des Kopfzünders in der Regel nicht möglich ist. Denn die heute üblicherweise verwendeten Kopfzünder weisen zwar ein stark beanspruchbares Außengewinde auf, doch erfolgt die Verbindung zwischen dem heckseitigen in der Geschoßhülle liegenden Teil des Zünders und der Zünderspitze ebenfalls über eine Schraubverbindung, die beim Abschrauben des Zünders aufgrund der großen Losdrehmomente relativ leicht beschädigt werden kann.A disadvantage of these bullets provided with a preassembled head detonator is, however, that disassembly of the igniter after curing of the sealant hardly is more possible because the adhesive force in the thread is so high that a non-destructive It is usually not possible to detach the igniter. Because those commonly used today Head detonators have a heavy-duty external thread, but they do there is a connection between the rear part of the Detonator and the detonator tip also via a screw connection, which when unscrewing of the detonator can be damaged relatively easily due to the large starting torques can.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Geschoß der eingangs erwähnten Art anzugeben, dessen Kopfzünder sich auf einfache Weise durch einen neuen Zünder -beispielsweise noch in der Gefechtsstellung durch die entsprechenden Soldatenaustauschen läßt. Ferner soll ein Verfahren zur Herstellung eines derartigen Geschosses offenbart werden.The present invention has for its object a floor of the aforementioned Specify type, the top match is easily replaced by a new one Detonator - for example, still in the combat position by the appropriate soldier exchange leaves. A method for producing such a projectile is also intended be disclosed.

Diese Aufgabe wird erfindungsgemäß hinsichtlich des Geschosses durch die Merkmale des Anspruchs 1 und hinsichtlich des Verfahrens durch die Merkmale des Anspruchs 2 gelöst. Eine weitere, besonders vorteilhafte Ausgestaltung der Erfindung offenbart der Unteranspruch.This object is achieved with respect to the projectile by the features of Claim 1 and in terms of the method solved by the features of claim 2. A further, particularly advantageous embodiment of the invention is disclosed in the subclaim.

Die Erfindung beruht im wesentlichen auf dem Gedanken, daß zwischen dem Außengewinde und dem Mundlochgewinde nicht wie bisher eine aushärtende Masse als Dichtmittel, sondern ein dauerelastisches Dichtmittel angeordnet wird. Hierzu wird das dauerelastische Dichtmittel z.B. in zähflüssiger Form auf das Außengewinde des Kopfzünders aufgetragen. Der Kopfzünder kann dann anschließend oder zu einem geeigneten späteren Zeitpunkt (z.B. noch nach mehreren Monaten) auf die Geschoßhülle aufgeschraubt werden. Dadurch wird der Gewindespalt zwischen Zünderaußen- und Geschoßinnengewinde vollständig ausgefüllt und ergibt eine gute Dichtwirkung, ohne die Lösbarkeit des Kopfzünders negativ zu beeinflussen.The invention is essentially based on the idea that between the external thread and the mouth thread not a hardening compound as a sealant as before, but a permanently elastic sealant is arranged. For this, the permanently elastic Sealant e.g. applied in viscous form to the external thread of the igniter. The detonator can then be used or at a suitable later time (e.g. after several months) are screwed onto the shell. This completes the thread gap between the outer and outer threads of the projectile filled in and gives a good sealing effect, without the detachability of the igniter to affect negatively.

Die Verwendung des dauerelastischen Dichtmittels weist ferner den Vorteil auf, daß auch weiterhin bereits vorhandene Kopfzünder verwendet werden können. Eine Änderung der Verbindung zwischen heckseitigem Teil des Zünders und Zünderspitze ist daher nicht erforderlich.The use of the permanently elastic sealant also has the advantage that existing igniter can still be used. A change in A connection between the rear part of the igniter and the igniter tip is therefore not necessary.

Als besonders vorteilhaft haben sich in der Praxis dauerelastische Dichtmittel erwiesen, die auch noch bei einer Temperatur von -50 °C elastisch bleiben.In practice, permanently elastic sealants have proven to be particularly advantageous remain elastic even at a temperature of -50 ° C.

Vorbeschichtete Kopfzünder können sofort mit der Geschoßhülle verschraubt oder bis zu mehreren Jahren bei Raumtemperatur eingelagert werden.Pre-coated detonators can be screwed to the shell immediately or up to be stored for several years at room temperature.

Wie sich in der Praxis ebenfalls gezeigt hat, weisen dauerelastische Dichtmittel im Gewindespalt gute Dämpfüngseigenschaften auf, so daß gegebenenfalls beim Transport der entsprechenden Munition auftretende Vibrationen nicht zum Lösen der Schraubverbindung führt.As has also been shown in practice, permanently elastic sealants have in the thread gap good damping properties, so that if necessary during transport of the corresponding Ammunition vibrations not to loosen the screw connection leads.

Außerdem hat sich gezeigt, daß nach vollständigem Lösen der Schraubverbindung zwischen Geschoßhülle und Kopfzünder die zu verschraubenden Elemente je nach Produkt mehrmals wieder zusammengeschraubt werden können, ohne daß die Dichtwirkung verloren geht.It has also been shown that after completely loosening the screw connection between Bullet casing and detonator the elements to be screwed depending on the product can be screwed together several times without losing the sealing effect goes.

Schließlich läßt sich bei Verwendung eines dauerelastischen Dichtmittels auch eine Umarbeitung bereits im Depot vorhandener, mit Heberingverschlußschrauben versehener Geschosse in Geschosse mit Kopfzünder auf einfache Weise realisieren. Denn während das Abdichten eines Kopfzünders mittels eines aushärtenden Dichtmittels voraussetzt, daß beide Gewinde sauber und fettfrei sein müssen und daher insbesondere nach Ausschrauben der Heberingverschlußschraube das stets am Mundlochgewinde befindliche Silikonfett auf relativ aufwendige Weise beseitigt werden muß (weil anderenfalls der Aushärtungsvorgang durch das Silikonfett beeinflußt werden kann), ist eine derartige Beseitigung des Silikonfettes im Falle der Verwendung eines dauerelastischen Dichtmittels nicht erforderlich. Vielmehr muß lediglich das Gewinde, auf welches das Dichtmittel aufgebracht werden soll (in der Regel das Außengewinde des Kopfzünders), sauber und fettfrei sein.Finally, if a permanently elastic sealant is used, it can also be reworked storeys already available in the depot with lifting ring locking screws easy to implement in storeys with detonators. Because while that Sealing a detonator using a hardening sealant presupposes that both Threads must be clean and free of grease and therefore especially after unscrewing the lifting ring locking screw on the silicone grease that is always on the mouth thread must be eliminated in a relatively complex manner (because otherwise the curing process can be influenced by the silicone grease) is such a removal of the silicone grease not necessary if a permanently elastic sealant is used. Rather, only the thread to which the sealant is to be applied (usually the external thread of the igniter), be clean and free of grease.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden anhand einer Figur erläuterten Ausführungsbeispiel.Further details and advantages of the invention will become apparent from the following a figure illustrated embodiment.

Die Fig. zeigt den vorderen Bereich eines drallstabilisierten mit 1 bezeichneten Artilleriegeschosses. Das Geschoß 1 umfaßt eine Geschoßhülle 2, in welcher sich Sprengstoff 3 befindet, und einen Kopfzünder 4. Der mit einem Außengewinde 5 versehene Kopfzünder 4 ist in ein Innengewinde (Mundlochgewinde) 6 der Geschoßhülle 2 eingeschraubt. Zwischen den Gewindegängen der beiden Gewinde 5, 6 ist ein dauerelastisches Dichtmittel 7 angeordnet.The figure shows the front area of a spin-stabilized artillery projectile denoted by 1. The projectile 1 comprises a projectile casing 2 in which explosives 3 is located, and a detonator 4. The detonator provided with an external thread 5 4 is screwed into an internal thread (mouth thread) 6 of the projectile casing 2. Between the threads of the two threads 5, 6 is a permanently elastic sealant 7 arranged.

Wie der Fig. ebenfalls zu entnehmen ist, setzt sich der Kopfzünder 4 aus einer Zünderspitze 8 und einem Zünderheck 9 zusammen, welches eine Verstärkerladung 10 umschließt. Zünderheck 9 und Zünderspitze 8 sind über eine relativ schwache Gewindeverbindung 11 miteinander verbunden, die über eine Verdrehsicherung 12 gesichert ist.As can also be seen from the figure, the head igniter 4 is made up of an igniter tip 8 and a detonator tail 9 together, which encloses an amplifier charge 10. Detonator tail 9 and detonator tip 8 are via a relatively weak threaded connection 11 connected to each other, which is secured via an anti-rotation device 12.

Zur Herstellung des Geschosses 1 wird zunächst das dauerelastische Dichtmittel 7 in zähflüssiger Form auf das Außengewinde 5 des Kopfzünders 4 und/oder auf das Mundlochgewinde 6 der Geschoßhülle 2 aufgetragen. Dabei muß nur das Gewinde, das vorbeschichtet werden soll, sauber und fettfrei sein. Anschließend kann der vorbeschichtete Kopfzünder 4 dann sofort mit der Geschoßhülle 2 verschraubt werden. To manufacture the projectile 1, the permanently elastic sealant 7 is first viscous Form on the external thread 5 of the igniter 4 and / or on the mouth thread 6 of the shell 2 applied. All that is required is the thread that is pre-coated should be clean and fat-free. Then the pre-coated Head fuze 4 are then immediately screwed to the shell 2.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Geschoß, ArtilleriegeschoßMissile, artillery shell
22
Geschoßhülleprojectile casing
33
Sprengstoffexplosive
44
Kopfzündernose fuse
55
Außengewinde, GewindeMale thread, thread
66
Innengewinde, Mundlochgewinde, GewindeInternal thread, lip hole thread, thread
77
dauerelastisches Dichtmittelpermanently elastic sealant
88th
Zünderspitzeigniter tip
99
Zünderheckfuze tail
1010
Verstärkerladungbooster charge
1111
Gewindeverbindungthreaded connection
1212
Verdrehsicherungtwist

Claims (3)

Geschoß mit einer Geschoßhülle (2) und einem vorderseitig mit der Geschoßhülle (2) über eine Schraubverbindung verbindbaren Kopfzünder (4), wobei der Kopfzünder (4) ein Außengewinde (5) und die Geschoßhülle (2) ein Innengewinde (Mundlochgewinde) (6) aufweist, dadurch gekennzeichnet, daß zwischen dem Außengewinde (5) und dem Mundlochgewinde (6) ein dauerelastisches Dichtmittel (7) angeordnet ist.Projectile with a projectile casing (2) and a head igniter (4) which can be connected to the projectile casing (2) by means of a screw connection, the head igniter (4) having an external thread (5) and the projectile casing (2) having an internal thread (mouth hole thread) (6) characterized in that a permanently elastic sealing means (7) is arranged between the external thread (5) and the mouth thread (6). Verfahren zur Herstellung eines Geschosses nach Anspruch 1, dadurch gekennzeichnet, daß das dauerelastische Dichtmittel (7) vor dem Verschrauben von Kopfzünder (4) und Geschoßhülle (2) auf das Außengewinde (5) des Kopfzünders (4) und/oder auf das Mundlochgewinde (6) der Geschoßhülle (2) aufgebracht wird.A method of manufacturing a projectile according to claim 1, characterized in that the permanently elastic sealing means (7) before the head igniter (4) and projectile casing (2) are screwed onto the external thread (5) of the head primer (4) and / or onto the mouth hole thread ( 6) the projectile casing (2) is applied. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß der Kopfzünder (4) nach dem Beschichten des Außengewindes (5) mit einem dauerelastischen Dichtmittel (7) bis zu seiner bestimmungsgemäßen Verwendung eingelagert wird.Method according to claim 2, characterized in that the head igniter (4) is stored after coating the external thread (5) with a permanently elastic sealant (7) until it is used as intended.
EP02000639A 2001-01-31 2002-01-11 Projectile and method for manufacturing such a projectile Expired - Lifetime EP1229299B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001104023 DE10104023A1 (en) 2001-01-31 2001-01-31 Projectile comprises sleeve and detonation head connected to it via screw connection
DE10104023 2001-01-31

Publications (3)

Publication Number Publication Date
EP1229299A2 true EP1229299A2 (en) 2002-08-07
EP1229299A3 EP1229299A3 (en) 2003-04-09
EP1229299B1 EP1229299B1 (en) 2005-11-09

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EP02000639A Expired - Lifetime EP1229299B1 (en) 2001-01-31 2002-01-11 Projectile and method for manufacturing such a projectile

Country Status (4)

Country Link
EP (1) EP1229299B1 (en)
DE (2) DE10104023A1 (en)
IL (1) IL147896A0 (en)
ZA (1) ZA200200746B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1203510A (en) * 1958-01-08 1960-01-19 Alsetex Watertight shutter device, safety
US3547036A (en) * 1968-05-29 1970-12-15 Jack Brothers Two-piece projectile and method of sealing same
US4760795A (en) * 1985-10-22 1988-08-02 Royal Ordnance Plc Explosive projectiles
EP0633448A1 (en) * 1993-06-10 1995-01-11 Ici Americas Inc. Anaerobic sealing of the interfaces between ammunition parts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1203510A (en) * 1958-01-08 1960-01-19 Alsetex Watertight shutter device, safety
US3547036A (en) * 1968-05-29 1970-12-15 Jack Brothers Two-piece projectile and method of sealing same
US4760795A (en) * 1985-10-22 1988-08-02 Royal Ordnance Plc Explosive projectiles
EP0633448A1 (en) * 1993-06-10 1995-01-11 Ici Americas Inc. Anaerobic sealing of the interfaces between ammunition parts

Also Published As

Publication number Publication date
ZA200200746B (en) 2002-08-12
DE10104023A1 (en) 2002-08-01
IL147896A0 (en) 2002-08-14
EP1229299A3 (en) 2003-04-09
EP1229299B1 (en) 2005-11-09
DE50204808D1 (en) 2005-12-15

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