EP2529180A1 - Spin-stabilized projectile - Google Patents

Spin-stabilized projectile

Info

Publication number
EP2529180A1
EP2529180A1 EP11700609A EP11700609A EP2529180A1 EP 2529180 A1 EP2529180 A1 EP 2529180A1 EP 11700609 A EP11700609 A EP 11700609A EP 11700609 A EP11700609 A EP 11700609A EP 2529180 A1 EP2529180 A1 EP 2529180A1
Authority
EP
European Patent Office
Prior art keywords
guide
projectile
spin
partial
belts
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
EP11700609A
Other languages
German (de)
French (fr)
Other versions
EP2529180B1 (en
Inventor
Georg Abeln
Michael Schwenzer
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 Waffe Munition GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP2529180A1 publication Critical patent/EP2529180A1/en
Application granted granted Critical
Publication of EP2529180B1 publication Critical patent/EP2529180B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
    • F42B14/02—Driving bands; Rotating bands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/26—Stabilising arrangements using spin

Definitions

  • the invention relates to a spin-stabilized projectile with a guide band according to the features of claim 1.
  • the guide band may be formed in one or more parts, wherein in the case of a multi-part guide band, the axially adjacent annular part guide belts are also within the dovetail groove of the projectile.
  • the partial guide bands can be made of different materials (for example, brass and soft iron) (DE 198 18 411 A1).
  • the invention has for its object to disclose a spin-stabilized projectile of the type mentioned, in which the durability of the connection between a multi-part guide band and the corresponding projectile body is guaranteed even if centrifugal forces act on the guide band, as they occur in artillery projectiles.
  • This object is achieved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.
  • each of the partial guide belts is arranged in a separate groove of the projectile.
  • the shape and arrangement of the grooves is dependent on the particular purpose, with the form of a dovetail groove being preferred.
  • a guide strip is known which comprises a plurality of thin and spaced-apart ribs which are filled with a filling material forming the guide strip, but the technical implementation is very complicated.
  • the partial guide belts may continue to tear. -
  • the partial guide belts can also be designed so that, as far as necessary, a "flow" of the material during the pipe run is made possible.
  • the partial guide bands may be made of the same material or different materials, for example, to ensure both high wear resistance and good lubricity.
  • first part guide strip made of brass
  • the second part guide strip made of soft iron.
  • each of the sub-guide belts in one separate groove, preferably in dovetail shape to arrange the projectile.
  • FIG. 1 shows a longitudinal section through the rear-side region of a spin-stabilized explosive projectile 1.
  • the projectile shell of the projectile body 3 and the explosive charge of the projectile 1 are designated by the reference numeral 2.
  • the projectile 1 comprises a guide band 4, which is composed of preferably two axially successively arranged, annular part-guide belts 5, 6.
  • first (the front) part guide strip 5 made of brass
  • the second (rear) part guide strip 6 made of soft iron.
  • each of the (two) partial guide belts 5, 6 is arranged on the bullet side in a separate groove 7, 8 of the projectile casing 2, in such a way that the axial distance of the (two) dovetail grooves 7, 8 and / or the mutually facing regions 9, 10 of the partial guide bands 5, 6 are selected such that the partial guide bands 5, 6 directly adjoin one another.
  • FIG. 2 shows a further variant of the integration of the partial guide belts 5, 6, which in this case have a spacing 11 between each other at least in the upper area. This arrangement allows the belts to flow during the passage of the projectile 1.
  • the invention is not limited to the embodiment described above. Rather, more than two partial guide belts can be arranged in more than two adjoining dovetail slots.
  • the Partial guide bands in the individual dovetail grooves may also consist of the same material if this is expedient (for example when using a specific ammunition or a corresponding weapon barrel).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The invention relates to a spin-stabilized projectile (1) with a guide band (4) which is composed of at least two annular sub-guide bands (5, 6) that lie axially one behind the other. The aim of the invention is to ensure the durability of the connection between the multi-part guide band (4) and the corresponding projectile body of the projectile (1) even when high centrifugal forces act on the guide band (4), such as those centrifugal forces that occur in artillery projectiles. To achieve this, each of the sub-guide bands (5, 6) lies in a separate groove (7, 8) of the projectile (1).

Description

BESCHREIBUNG  DESCRIPTION
Drallstabilisiertes Geschoss Spin-stabilized projectile
Die Erfindung betrifft ein drallstabilisiertes Geschoss mit einem Führungsband nach den Merkmalen des Anspruchs 1. The invention relates to a spin-stabilized projectile with a guide band according to the features of claim 1.
Insbesondere bei Artilleriemunition werden drallstabilisierte Geschosse verwendet, auf denen heckseitig ein Führungsband angeordnet ist, welches in eine entsprechende Schwalbenschwanznut des Geschosses eingepresst ist. Dabei kann das Führungsband einteilig oder mehrteilig ausgebildet sein, wobei sich im Falle eines mehrteiligen Führungsbandes die sich axial aneinander anschließenden, ringförmigen Teil- Führungsbänder ebenfalls innerhalb der Schwalbenschwanznut des Geschosses befinden. Die Teil-Führungsbänder können aus unterschiedlichen Materialien (beispielsweise aus Messing und Weicheisen) bestehen (DE 198 18 411 A1). In particular artillery ammunition spin-stabilized projectiles are used, on which the rear side a guide band is arranged, which is pressed into a corresponding dovetail groove of the projectile. In this case, the guide band may be formed in one or more parts, wherein in the case of a multi-part guide band, the axially adjacent annular part guide belts are also within the dovetail groove of the projectile. The partial guide bands can be made of different materials (for example, brass and soft iron) (DE 198 18 411 A1).
Als nachteilig hat es sich erwiesen, dass bei modernen Artilleriegeschossen aufgrund der hohen Drehzahl und der damit erzeugten hohen Zentrifugalkraft sowie der bei diesen Geschossen relativ großen Breite der Führungsbänder von ca. 35 bis 40 mm die Haltbarkeit der formschlüssigen Verbindung zwischen dem jeweiligen Führungsband und dem Geschosskörper häufig nicht gegeben ist. Vielmehr kann es aufgrund der auf das Führungsband wirkenden hohen Zentrifugalkraft zu einem Abheben oder Reißen des jeweiligen Führungsbandes kommen, wodurch die Ballistik des Geschosses negativ beeinflusst wird. It has proved to be disadvantageous that in modern artillery projectiles due to the high rotational speed and the high centrifugal force thus generated and the relatively large width of the guide belts of about 35 to 40 mm on these projectiles, the durability of the positive connection between the respective guide band and the projectile body is often not given. Rather, due to the force acting on the guide belt high centrifugal force to a lifting or tearing of the respective guide belt, whereby the ballistics of the projectile is adversely affected.
Der Erfindung liegt die Aufgabe zugrunde, ein drallstabilisiertes Geschoss der eingangs erwähnten Art zu offenbaren, bei dem die Haltbarkeit der Verbindung zwischen einem mehrteiligen Führungsband und dem entsprechenden Geschosskörper auch dann gewährleistet ist, wenn Zentrifugalkräfte auf das Führungsband wirken, wie sie bei Artilleriegeschossen auftreten. Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Weitere, besonders vorteilhafte Ausgestaltungen der Erfindung offenbaren die Unteransprüche. The invention has for its object to disclose a spin-stabilized projectile of the type mentioned, in which the durability of the connection between a multi-part guide band and the corresponding projectile body is guaranteed even if centrifugal forces act on the guide band, as they occur in artillery projectiles. This object is achieved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.
Die Erfindung beruht im Wesentlichen auf dem Gedanken, dass jedes der Teil- Führungsbänder in einer separaten Nut des Geschosses angeordnet ist. Die Form und Anordnung der Nuten ist dabei vom jeweiligen Zweck abhängig, wobei sich die Form einer Schwalbenschwanznut als bevorzugt anbietet. - Zwar ist unter anderem aus der US 2,809,587 A ein Führungsband bekannt, welches mehrere dünne und voneinander beabstandete Rippen umfasst, die mit einem, das Führungsband bildende Füllmaterial ausgefüllt sind, jedoch ist die technische Umsetzung sehr aufwändig. Zudem kann es weiterhin zu einem Ausreißen der Teilführungsbänder kommen. - The invention is based essentially on the idea that each of the partial guide belts is arranged in a separate groove of the projectile. The shape and arrangement of the grooves is dependent on the particular purpose, with the form of a dovetail groove being preferred. Although, inter alia, from US Pat. No. 2,809,587 A, a guide strip is known which comprises a plurality of thin and spaced-apart ribs which are filled with a filling material forming the guide strip, but the technical implementation is very complicated. In addition, the partial guide belts may continue to tear. -
Als vorteilhaft hat sich nämlich erwiesen, wenn der axiale Abstand benachbarter Schwalbenschwanznuten und/oder die jeweils einander zugewandten Bereiche der Teil- Führungsbänder derart gewählt sind, dass die Teil-Führungsbänder sich direkt aneinander anschließen. Die Teilführungsbänder können aber auch so gestaltet werden, dass, soweit notwendig, ein„Fließen" des Materials während des Rohrdurchlaufs ermöglicht wird. In fact, it has proved to be advantageous if the axial spacing of adjacent dovetail grooves and / or the respective mutually facing regions of the partial guide bands are selected such that the partial guide bands directly adjoin one another. However, the partial guide belts can also be designed so that, as far as necessary, a "flow" of the material during the pipe run is made possible.
Durch das Ersetzen einer einzigen, relativ langen (Schwalbenschwanz-)Nut durch mehrere kürzere (Schwalbenschwanz-)Nuten wird erreicht, dass die auftretenden Zentrifugalkräfte besser verteilt werden können. Durch Auswahl entsprechender Materialien für die Teil-Führungsbänder kann sowohl die Haltbarkeit der Verbindung der Teil- Führungsbänder mit dem Geschosskörper gewährleistet als auch der Führungsbandverschleiß reduziert werden. By replacing a single, relatively long (dovetail) groove by a plurality of shorter (dovetail) grooves is achieved that the centrifugal forces occurring can be better distributed. By selecting appropriate materials for the partial guide bands, both the durability of the connection of the partial guide belts can be ensured with the projectile body and the Führungsbandverschleiß be reduced.
Die Teil-Führungsbänder können aus dem gleichen Material oder aus unterschiedlichen Materialien bestehen, um beispielsweise sowohl eine hohe Verschleißfestigkeit als auch eine gute Gleitfähigkeit sicherzustellen. So kann beispielsweise das, in Schussrichtung gesehen, erste Teil-Führungsband aus Messing und das zweite Teil-Führungsband aus Weicheisen bestehen. The partial guide bands may be made of the same material or different materials, for example, to ensure both high wear resistance and good lubricity. Thus, for example, seen in the weft direction, first part guide strip made of brass and the second part guide strip made of soft iron.
Es ist auch möglich, für mindestens ein Teil-Führungsband des Geschosses ein Material zu verwenden, welches beim Abschuss des Geschosses schadhafte Bereiche der inneren Oberfläche des entsprechenden Waffenrohres schließt (repariert). It is also possible to use a material for at least a partial guide band of the bullet, which on the firing of the projectile defective areas of the inner Surface of the corresponding gun barrel closes (repairs).
Um also zu erreichen, dass die Haltbarkeit der Verbindung zwischen dem mehrteiligen Führungsband und dem entsprechenden Geschosskörper des Geschosses auch dann gewährleistet ist, wenn hohe Zentrifugalkräfte auf das Führungsband wirken, wie sie bei Artilleriegeschossen auftreten, wird nunmehr vorgeschlagen, jedes der Teil- Führungsbänder in einer separaten Nut, bevorzugt in Schwalbenschwanzform, des Geschosses anzuordnen. So as to ensure that the durability of the connection between the multi-part guide band and the corresponding projectile body of the projectile is guaranteed even when high centrifugal forces act on the guide band, as they occur in artillery projectiles, it is now proposed, each of the sub-guide belts in one separate groove, preferably in dovetail shape to arrange the projectile.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden, anhand von Zeichnungen erläuterten Ausführungsbeispiel. Further details and advantages of the invention will become apparent from the following, explained with reference to drawings embodiment.
Die Fig. 1 zeigt einen Längsschnitt durch den heckseitigen Bereich eines drallstabilisierten Sprenggeschosses 1. Dabei sind mit den Bezugszeichen 2 die Geschosshülle des Geschosskörpers und 3 die Sprengladung des Geschosses 1 bezeichnet. 1 shows a longitudinal section through the rear-side region of a spin-stabilized explosive projectile 1. Here, the projectile shell of the projectile body 3 and the explosive charge of the projectile 1 are designated by the reference numeral 2.
Das Geschoss 1 umfasst ein Führungsband 4, welches sich aus bevorzugt zwei axial hintereinander angeordneten, ringförmigen Teil-Führungsbändern 5, 6 zusammensetzt. Dabei kann das, in Schussrichtung gesehen, erste (das vordere) Teil-Führungsband 5 aus Messing und das zweite (das hintere) Teil-Führungsband 6 aus Weicheisen bestehen. The projectile 1 comprises a guide band 4, which is composed of preferably two axially successively arranged, annular part-guide belts 5, 6. In this case, seen in the weft direction, first (the front) part guide strip 5 made of brass and the second (rear) part guide strip 6 made of soft iron.
Erfindungsgemäß ist nun vorgesehen, dass jedes der (beiden) Teil-Führungsbänder 5, 6 geschosskörperseitig in einer separaten Nut 7, 8 der Geschosshülle 2 angeordnet ist, und zwar derart, dass der axiale Abstand der (beiden) Schwalbenschwanznuten 7, 8 und/oder die einander zugewandten Bereiche 9, 10 der Teil-Führungsbänder 5, 6 derart gewählt sind, dass die Teil-Führungsbänder 5, 6 sich direkt aneinander anschließen. According to the invention, it is now provided that each of the (two) partial guide belts 5, 6 is arranged on the bullet side in a separate groove 7, 8 of the projectile casing 2, in such a way that the axial distance of the (two) dovetail grooves 7, 8 and / or the mutually facing regions 9, 10 of the partial guide bands 5, 6 are selected such that the partial guide bands 5, 6 directly adjoin one another.
Fig. 2 zeigt eine weitere Variante der Einbindung der Teil- Führungsbänder 5, 6, die hierbei zumindest im oberen Bereich zwischen einander eine Beabstandung 11 aufweisen. Diese Anordnung erlaubt den Bändern ein Fließen während des Rohrdurchlaufes des Geschosses 1. FIG. 2 shows a further variant of the integration of the partial guide belts 5, 6, which in this case have a spacing 11 between each other at least in the upper area. This arrangement allows the belts to flow during the passage of the projectile 1.
Die Erfindung ist selbstverständlich nicht auf das vorstehend beschriebene Ausführungsbeispiel beschränkt. Vielmehr können auch mehr als zwei Teil-Führungsbänder in mehr als zwei sich aneinander anschließenden Schwalbenschwanznuten angeordnet sein. Die Teil-Führungsbänder in den einzelnen Schwalbenschwanznuten können auch aus dem gleichen Material bestehen, wenn dieses (z.B. bei Verwendung einer bestimmten Munition bzw. eines entsprechenden Waffenrohres) zweckmäßig ist. Of course, the invention is not limited to the embodiment described above. Rather, more than two partial guide belts can be arranged in more than two adjoining dovetail slots. The Partial guide bands in the individual dovetail grooves may also consist of the same material if this is expedient (for example when using a specific ammunition or a corresponding weapon barrel).
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Geschoss, SprenggeschossProjectile, explosive projectile
Geschosshülleprojectile casing
Sprengladungexplosive charge
Führungsbandguide band
(erste) Teil-Führungsband(first) partial leadership band
(zweite) Teil-Führungsband,8 Schwalbenschwanznuten,10 Bereiche (second) partial guide band, 8 dovetail grooves, 10 areas
Abstand  distance

Claims

PATENTANSPRÜCHE
1. Drallstabilisiertes Geschoss (1) mit einem Führungsband (4), welches sich aus mindestens zwei axial hintereinander angeordneten, ringförmigen Teil- Führungsbändern (5, 6) zusammensetzt, wobei jedes der Teil-Führungsbänder (5, 6) in einer separaten Nut (7, 8) des Geschosses (1 ) angeordnet ist, dadurch gekennzeichnet, dass die Form und Anordnung der Nut (7, 8) vom jeweiligen Zweck abhängig und bevorzugt eine Schwalbenschwanznut ist und der axiale Abstand der benachbarten Nuten (7, 8) und/oder die einander zugewandten Bereiche (9, 10) der Teil-Führungsbänder (5, 6) derart gewählt sind, dass die Teil- Führungsbänder (5, 6) sich direkt aneinander anschließen oder zumindest im oberen Bereich einen Abstand (11) aufweisen. A spin-stabilized projectile (1) having a guide strip (4) which is composed of at least two annular guide ribbons (5, 6) arranged axially one behind the other, each of the part guide strips (5, 6) being in a separate groove (5). 7, 8) of the projectile (1) is arranged, characterized in that the shape and arrangement of the groove (7, 8) depends on the respective purpose and preferably a dovetail groove and the axial distance of the adjacent grooves (7, 8) and / or the mutually facing regions (9, 10) of the partial guide belts (5, 6) are selected such that the partial guide belts (5, 6) directly adjoin one another or at least in the upper region have a distance (11).
2. Drallstabilisiertes Geschoss nach Anspruch 1 , dadurch gekennzeichnet, dass die Teil-Führungsbänder (5, 6) aus unterschiedlichen Materialien bestehen. 2. spin stabilized projectile according to claim 1, characterized in that the partial guide belts (5, 6) consist of different materials.
3. Drallstabilisiertes Geschoss nach Anspruch 2, dadurch gekennzeichnet, dass im Falle eines aus wenigstens zwei Teil-Führungsbändern (5, 6) bestehenden Führungsbandes (4) das, in Schussrichtung gesehen, erste Teil-Führungsband (5) aus Messing und das zweite, hintere Teil-Führungsband (6) aus Weicheisen bestehen kann. 3. spin-stabilized projectile according to claim 2, characterized in that in the case of one of at least two partial guide bands (5, 6) existing guide strip (4) seen in the weft direction, the first part guide strip (5) made of brass and the second, Rear part-guide strip (6) may consist of soft iron.
EP11700609.8A 2010-01-28 2011-01-07 Spin-stabilized projectile Active EP2529180B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010006221 DE102010006221A1 (en) 2010-01-28 2010-01-28 Spin-stabilized projectile
PCT/EP2011/000033 WO2011091949A1 (en) 2010-01-28 2011-01-07 Spin-stabilized projectile

Publications (2)

Publication Number Publication Date
EP2529180A1 true EP2529180A1 (en) 2012-12-05
EP2529180B1 EP2529180B1 (en) 2016-04-20

Family

ID=43716931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11700609.8A Active EP2529180B1 (en) 2010-01-28 2011-01-07 Spin-stabilized projectile

Country Status (7)

Country Link
US (1) US20140076191A1 (en)
EP (1) EP2529180B1 (en)
AU (1) AU2011209093A1 (en)
DE (1) DE102010006221A1 (en)
ES (1) ES2578512T3 (en)
IL (1) IL221004A (en)
WO (1) WO2011091949A1 (en)

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CN102636084B (en) * 2012-04-12 2014-10-08 哈尔滨工业大学 Soft iron-brass composite band structure and welding method thereof
CN103071891B (en) * 2012-12-28 2015-07-15 哈尔滨工业大学 Method for welding composite bearing band of soft iron mixed with pure copper, and structure of composite bearing band
DE202014005442U1 (en) * 2014-07-03 2014-08-12 Bundesrepublik Deutschland, vertreten durch das BMVg, vertreten durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr Artillery shell with a sealing ring
US9157716B1 (en) * 2014-09-29 2015-10-13 The United States Of America As Represented By The Secretary Of The Army Shot start ring for projectile
DE102017110426A1 (en) 2017-05-12 2018-11-15 Rheinmetall Waffe Munition Gmbh Guide band integral obturator on the artillery level
US10345086B1 (en) * 2017-12-18 2019-07-09 The United States Of America As Represented By The Secretary Of The Army MOUT projectile with sabot integrated shot start
CN111220019A (en) * 2020-02-17 2020-06-02 南京理工大学 Mixed elastic band device containing preset notch

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Also Published As

Publication number Publication date
US20140076191A1 (en) 2014-03-20
EP2529180B1 (en) 2016-04-20
ES2578512T3 (en) 2016-07-27
WO2011091949A1 (en) 2011-08-04
DE102010006221A1 (en) 2011-08-18
AU2011209093A1 (en) 2012-07-26
IL221004A (en) 2016-07-31

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