EP0047820A2 - Sabot for a sub-calibre projectile with armour-piercing core - Google Patents

Sabot for a sub-calibre projectile with armour-piercing core Download PDF

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Publication number
EP0047820A2
EP0047820A2 EP81105055A EP81105055A EP0047820A2 EP 0047820 A2 EP0047820 A2 EP 0047820A2 EP 81105055 A EP81105055 A EP 81105055A EP 81105055 A EP81105055 A EP 81105055A EP 0047820 A2 EP0047820 A2 EP 0047820A2
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EP
European Patent Office
Prior art keywords
projectile
guide
balancing
sub
sabot
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.)
Withdrawn
Application number
EP81105055A
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German (de)
French (fr)
Other versions
EP0047820A3 (en
Inventor
Wilhelm Dipl.-Ing. Simmler
Günter Dr. Hoff
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.)
Dornier System GmbH
Original Assignee
Dornier System 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 Dornier System GmbH filed Critical Dornier System GmbH
Publication of EP0047820A2 publication Critical patent/EP0047820A2/en
Publication of EP0047820A3 publication Critical patent/EP0047820A3/en
Withdrawn legal-status Critical Current

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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
    • F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
    • F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile
    • 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
    • F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
    • F42B14/068—Sabots characterised by the material

Definitions

  • the invention relates to a sub-caliber balancing projectile with a dismountable floor guide, the bore of which receives the balancing project in a form-fitting manner.
  • Bullet guides are used to fire sub-caliber, mostly armor-piercing bullets from a gun barrel of larger caliber in order to increase the penetration rate.
  • the projectile guide itself usually consists of a drive ring, in the cavity of which there is a projectile and on the casing of which there are guides which are referred to as sabots, sabots, drive pistons, drive disks, drive ring.
  • the floor guide is divided several times in the longitudinal direction and is released by the air forces after leaving the pipe. It transfers the high acceleration forces that occur during the launch to the actual projectile and guides it in the pipe. After leaving the pipe, the guide parts fall to the ground; they do not contribute to the effect at the target, but can endanger your own troops.
  • the sealing between the floor guide and the inner wall of the pipe against the accelerating propellant gases takes place by means of guide bands or guide rings, which consist of copper, sintered iron or, more recently, often also of plastic.
  • guide bands or guide rings consist of copper, sintered iron or, more recently, often also of plastic.
  • the guide parts should be as light as possible to facilitate the acceleration process in the tube and the detachment process. You also have to endure the high pressure and tensile loads during launch and in the acceleration phase.
  • the floor guides belonging to the state of the art are made of aluminum or magnesium alloys.
  • plastics are also used as guide material.
  • the weight ratio of the guide to the projectile is usually around 1: 1.
  • the invention has for its object to provide a projectile guide that can be produced inexpensively with high accuracy and has only a very low weight, whereby compressive strength and tensile strength are guaranteed.
  • the projectile guide is a pressed part made of hollow glass spheres with plastic binding material or glass binding material.
  • the projectile guides are molded articles made of very small hollow glass spheres, the specific weight of which is approximately 0.2 g / cm 3 and which are obtained as waste products, for example when burning coal dust in a fluidized bed process.
  • the hollow glass spheres have a diameter of approximately 25 ⁇ m to 1000 ⁇ m and are very inexpensive. By adding a little plastic adhesive or glass binding material as a percentage, the hollow glass spheres can be pressed as desired using known methods, and very pressure-resistant molded parts can be produced by curing or sintering.
  • foam glass or syntactic foams offers similar advantages.
  • the material mentioned can be filled in light metal.
  • a particular advantage is that bullet guides made of this material allow easy and quick separation from the bullet due to the large weight difference and can be broken down into very small and light individual pieces that do not pose a threat to your own troops.
  • Fig. 1 shows an arrow projectile 2, consisting of a bullet tip 4, shaft 6, wing end 8.
  • the largest diameter of the arrow projectile 2 is smaller than the inside diameter of the tube 9.
  • a projectile guide 10 is therefore required which has a cylindrical shape and has a bore 12.
  • Bore 12 can be wave-shaped or thread-shaped, so that it forms a positive and / or non-positive connection with a correspondingly designed jacket of the shaft 6. Both parts can also be designed in the manner of a spline or K-Profi.ls.
  • On the jacket 15 of the projectile guide 10 there are two guide bands 14 which ensure a gas and pressure-tight connection to the pipe.
  • the guide bands are preferably made of plastic, while the floor guide according to the invention a pressing member of hollow glass spheres with plastic binder material or glass bonding material, wherein the starting material commercial glass spheres of 25 / um to 1000 / um are.
  • the projectile guide 10 is divided several times in the longitudinal direction, so that after the arrow projectile has left the tube, it can detach from it and fall off as the projectile makes its way towards the target.
  • FIG. 2 shows a balancing projectile 20 which is accelerated by a sabot 22 made of Al material, which at the same time also transmits rotational forces to the projectile and which contains guide bands 24.
  • the projectile in the pipe is guided by a sabot 26, which is made of hollow glass material or by foaming and prevents the projectile from swinging in the pipe.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

Low-calibre balancing projectile with a detachable projectile guide, the bore of which receives the balancing projectile positively. The projectile guide is a pressed article consisting of hollow glass balls with a plastic or glass binder material. <IMAGE>

Description

Die Erfindung betrifft ein unterkalibriges Wuchtgeschoss mit einer zerlegbaren Geschossführung, deren Bohrung das Wuchtgeschoss formschlüssig aufnimmt.The invention relates to a sub-caliber balancing projectile with a dismountable floor guide, the bore of which receives the balancing project in a form-fitting manner.

Geschossführungen werden verwendet, um unterkalibrige, meist panzerbrechende Geschosse aus einem Geschützrohr grösseren Kalibers zu verschiessen, um damit die Durchschlagleistung zu erhöhen. Die Geschossführung selbst besteht in der Regel aus einem Treibring, in dessen Hohlraum sich ein Geschoss befindet und an dessen Mantel sich Führungen befinden, die als Treibkäfige, Treibspiegel, Treibkolben, Treibscheiben, Treibring bezeichnet werden. Die Geschossführung ist in Längsrichtung mehrfach geteilt und löst sich durch die Luftkräfte nach Verlassen des Rohres. Sie überträgt die beim Abschuss auftretenden hohen Beschleunigungskräfte auf das eigentliche Geschoss und führt dieses im Rohr. Nach dem Verlassen des Rohres fallen die Führungsteile .zu Boden; sie tragen nicht zur Wirkung im Ziel bei, können aber die eigene Truppe gefährden.Bullet guides are used to fire sub-caliber, mostly armor-piercing bullets from a gun barrel of larger caliber in order to increase the penetration rate. The projectile guide itself usually consists of a drive ring, in the cavity of which there is a projectile and on the casing of which there are guides which are referred to as sabots, sabots, drive pistons, drive disks, drive ring. The floor guide is divided several times in the longitudinal direction and is released by the air forces after leaving the pipe. It transfers the high acceleration forces that occur during the launch to the actual projectile and guides it in the pipe. After leaving the pipe, the guide parts fall to the ground; they do not contribute to the effect at the target, but can endanger your own troops.

Die Abdichtung zwischen Geschossführung und Rohrinnenwand gegen die beschleunigenden Treibmittelgase erfolgt durch Führungsbänder bzw. Führungsringe, die aus Kupfer, Sintereisen oder in letzter Zeit häufig auch aus Kunststoff bestehen. Die Führungsteile sollen möglichst leicht sein, um den Beschleunigungsvorgang im Rohr und den Ablösevorgang zu erleichtern. Sie müssen ausserdem die hohen Druck- und Zugbelastungen beim Abschuss und in der Beschleunigungsphase aushalten.The sealing between the floor guide and the inner wall of the pipe against the accelerating propellant gases takes place by means of guide bands or guide rings, which consist of copper, sintered iron or, more recently, often also of plastic. The guide parts should be as light as possible to facilitate the acceleration process in the tube and the detachment process. You also have to endure the high pressure and tensile loads during launch and in the acceleration phase.

Wegen dieser Forderungen sind die zum Stand der Technik gehörenden Geschossführungen aus Aluminium- oder Magnesiumlegierungen hergestellt. Für kleinkalibrige Geschosse verwendet man auch Kunststoffe als Führungsmaterial. Das Gewichtsverhältnis von Führung und Geschoss beträgt in der Regel etwa 1:1. Es fehlt daher nicht an Versuchen, durch Verringerung des Führungsgewichtsanteils die Leistung zu steigern und die Kosten zu senken. Dies geschieht vor allem durch konstruktive Maßnahmen, Einsatz moderner Fertigungsverfahren (z.B. Genau- oder Feinguss), Legierungstechnik (Werkstoffe höherer Festigkeit) und ähnliche Maßnahmen. Ein entscheidender Fortschritt wurde bisher weder bei den Fertigungskosten noch bei der Gewichtseinsparung erzielt.Because of these requirements, the floor guides belonging to the state of the art are made of aluminum or magnesium alloys. For small-caliber projectiles, plastics are also used as guide material. The weight ratio of the guide to the projectile is usually around 1: 1. There is therefore no shortage of attempts to increase performance and reduce costs by reducing the proportion of guide weight. This is done primarily through design measures, the use of modern manufacturing processes (e.g. precision or investment casting), alloy technology (materials with higher strength) and similar measures. So far, no decisive progress has been made in terms of production costs or weight savings.

Der Erfindung liegt die Aufgabe zugrunde, eine Geschossführung zu schaffen, die bei hoher Genauigkeit kostengünstig herstellbar ist und nur ein sehr geringes Eigengewicht aufweist, wobei Druckfestigkeit und Zugfestigkeit gewährleistet sind.The invention has for its object to provide a projectile guide that can be produced inexpensively with high accuracy and has only a very low weight, whereby compressive strength and tensile strength are guaranteed.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Geschossführung ein Pressteil aus Hohlglaskugeln mit Kunststoffbindematerial oder Glasbindematerial ist.This object is achieved according to the invention in that the projectile guide is a pressed part made of hollow glass spheres with plastic binding material or glass binding material.

Die Geschossführungen sind Formpresslinge aus sehr kleinen Hohlglaskugeln, deren spezifisches Gewicht etwa 0,2 g/cm3 beträgt und die als Abfallprodukte z.B. bei der Verbrennung von Kohlenstaub im Wirbelbettverfahren anfallen. Die Hohlglaskugeln haben einen Durchmesser von etwa 25 ,um bis 1000 /um und sind sehr preiswert. Durch Versetzen mit prozentual wenig Kunststoffkleber oder Glasbindematerial können die Hohlglaskugeln nach bekannten Verfahren beliebig verpresst werden und durch Aushärten oder Sintern sind sehr druckfeste Formteile herstellbar.The projectile guides are molded articles made of very small hollow glass spheres, the specific weight of which is approximately 0.2 g / cm 3 and which are obtained as waste products, for example when burning coal dust in a fluidized bed process. The hollow glass spheres have a diameter of approximately 25 µm to 1000 µm and are very inexpensive. By adding a little plastic adhesive or glass binding material as a percentage, the hollow glass spheres can be pressed as desired using known methods, and very pressure-resistant molded parts can be produced by curing or sintering.

Im gleichen Arbeitsgang können die Führungsbänder und -ringe mit eingebunden werden, wenn man diese vor dem Formpressen in die Formen einlegt. Mit diesem Fertigungsvorgang erreicht man folgende Vorteile:

  • - hohe Genauigkeit der Teile
  • - Verwendung sehr preiswerter Abfallprodukte
  • - ausserordentlich geringes Gewicht
  • - hohe Druckfestigkeit bei genügender Zugfestigkeit
  • - Einsparung von Fertigungskosten und Materialkosten
The guide bands and rings can be integrated in the same step if you insert them into the molds before compression molding. This manufacturing process offers the following advantages:
  • - high accuracy of parts
  • - Use of very inexpensive waste products
  • - extremely light weight
  • - high compressive strength with sufficient tensile strength
  • - Saving manufacturing costs and material costs

Ähnliche Vorteile bietet die Verwendung von Schaumglas oder syntaktischen Schäumen.The use of foam glass or syntactic foams offers similar advantages.

Die grössten Vorteile liegen bei kleinen Kalibern. Für grössere Kaliber kann das genannte Material in Leichtmetall eingefüllt werden.The biggest advantages are small calibers. For larger calibers, the material mentioned can be filled in light metal.

Ein besonderer Vorteil ist, dass Geschossführungen aus diesem Material wegen der grossen Gewichtsdifferenz eine leichte und schnelle Trennung vom Geschoss ermöglichen und sich in sehr kleine und leichte Einzelstücke zerlegen, die keine Gefährdung der eigenen Truppe darstellen.A particular advantage is that bullet guides made of this material allow easy and quick separation from the bullet due to the large weight difference and can be broken down into very small and light individual pieces that do not pose a threat to your own troops.

Die Erfindung wird nachstehend anhand von Ausführungsbeispielen beschrieben.

  • Fig. 1 zeigt ein Pfeilgeschoss, das sich mit einer Führung innerhalb eines Rohres befindet,
  • Fig. 2 zeigt ein Wuchtgeschoss mit einem Geschosskäfig und einem Treibspiegel.
The invention is described below using exemplary embodiments.
  • 1 shows an arrow projectile, which is located with a guide inside a tube,
  • Fig. 2 shows a balancing bullet with a bullet cage and a sabot.

Fig. 1. zeigt ein Pfeilgeschoss 2, bestehend aus Geschoßspitze 4, Schaft 6, Flügelende 8. Der grösste Durchmesser des Pfeilgeschosses 2 ist geringer als der lichte Durchmesser des Rohres 9. Zum Verschiessen des Pfeilgeschosses wird deshalb eine Geschossführung 10 benötigt, die zylinderförmig gestaltet ist und eine Bohrung 12 aufweist. Bohrung 12 kann wellenförmig oder gewindeförmig gestaltet sein, so dass sie mit einem entsprechend gestalteten Mantel des Schaftes 6 eine formschlüssige und/oder kraftschlüssige Verbindung bildet. Beide Teile können auch nach Art eines Keilwellenprofils oder K-Profi.ls gestaltet sein. Am Mantel 15 der Geschossführung 10 sind zwei Führungsbänder 14 vorhanden, die eine gas- und druckdichte Verbindung zum Rohr gewährleisten. Die Führungsbänder bestehen vorzugsweise aus Kunststoff, während die Geschossführung erfindungsgemäss ein Pressteil aus Hohlglaskugeln mit Kunststoffbindematerial oder Glasbindematerial ist, wobei das Ausgangsmaterial handelsübliche Glaskugeln von 25 /um bis 1000 /um sind.Fig. 1. shows an arrow projectile 2, consisting of a bullet tip 4, shaft 6, wing end 8. The largest diameter of the arrow projectile 2 is smaller than the inside diameter of the tube 9. To shoot the arrow projectile, a projectile guide 10 is therefore required which has a cylindrical shape and has a bore 12. Bore 12 can be wave-shaped or thread-shaped, so that it forms a positive and / or non-positive connection with a correspondingly designed jacket of the shaft 6. Both parts can also be designed in the manner of a spline or K-Profi.ls. On the jacket 15 of the projectile guide 10 there are two guide bands 14 which ensure a gas and pressure-tight connection to the pipe. The guide bands are preferably made of plastic, while the floor guide according to the invention a pressing member of hollow glass spheres with plastic binder material or glass bonding material, wherein the starting material commercial glass spheres of 25 / um to 1000 / um are.

Die Geschossführung 10 ist in Längsrichtung mehrfach geteilt, so dass sie, nachdem das Pfeilgeschoss das Rohr verlassen hat, sich von diesem lösen kann und abfällt, während das Geschoss seinen Weg in Richtung auf das Ziel nimmt.The projectile guide 10 is divided several times in the longitudinal direction, so that after the arrow projectile has left the tube, it can detach from it and fall off as the projectile makes its way towards the target.

Fig. 2 zeigt ein Wuchtgeschoss 20, das durch einen Treibspiegel 22 aus Al-Material beschleunigt wird, der gleichzeitig auch Rotationskräfte auf das Geschoss überträgt, und das Führungsbänder 24 enthält. Die Führung des Geschosses im Rohr übernimmt ein Treibkäfig 26, der aus Hohlglasmaterial oder durch Schäumen hergestellt ist und ein Pendeln des Geschosses im Rohr verhindert.FIG. 2 shows a balancing projectile 20 which is accelerated by a sabot 22 made of Al material, which at the same time also transmits rotational forces to the projectile and which contains guide bands 24. The projectile in the pipe is guided by a sabot 26, which is made of hollow glass material or by foaming and prevents the projectile from swinging in the pipe.

Claims (3)

1. Unterkalibriges Wuchtgeschoss mit einer zerlegbaren Geschossführung, deren Bohrung das Wuchtgeschoss aufnimmt, dadurch gekennzeichnet, dass die Geschossführung (10, 26) ein Pressteil aus Hohlglaskugeln mit Kunststoff- oder Glasbindematerial ist.1. Sub-caliber balancing projectile with a dismountable floor guide, the bore of which receives the balancing floor, characterized in that the floor guide (10, 26) is a pressed part made of hollow glass balls with plastic or glass binding material. 2. Wuchtgeschoss nach Anspruch 1, dadurch gekennzeichnet, dass die Geschossführung (10, 26) aus Schaumglas besteht oder durch Schäumen hergestellt ist.2. balancing projectile according to claim 1, characterized in that the projectile guide (10, 26) consists of foam glass or is produced by foaming. 3. Wuchtgeschoss nach Anspruch 1, dadurch gekennzeichnet, dass Führungsbänder (14, 24) in die Geschossführung (10, 26) integriert sind.3. balancing projectile according to claim 1, characterized in that guide bands (14, 24) are integrated in the projectile guide (10, 26).
EP81105055A 1980-09-13 1981-06-30 Sabot for a sub-calibre projectile with armour-piercing core Withdrawn EP0047820A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3034471 1980-09-13
DE19803034471 DE3034471A1 (en) 1980-09-13 1980-09-13 BULLET STOCK

Publications (2)

Publication Number Publication Date
EP0047820A2 true EP0047820A2 (en) 1982-03-24
EP0047820A3 EP0047820A3 (en) 1982-07-07

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069836A2 (en) * 1981-05-16 1983-01-19 Rheinmetall GmbH Projectile
EP0315125A2 (en) * 1987-11-06 1989-05-10 DIEHL GMBH &amp; CO. Sabot projectile for an insert barrel
US5148750A (en) * 1981-12-24 1992-09-22 Rheinmetall Gmbh Unitary projectile
US5878315A (en) * 1996-08-30 1999-03-02 Samsung Electronics Co., Ltd. Electrophotographic printer
WO2011044980A1 (en) * 2009-10-14 2011-04-21 Nitrochemie Aschau Gmbh Sabot
RU2734805C2 (en) * 2016-07-11 2020-10-23 Рейнметаль Ваффе Муницион Гмбх Separable tray with bionic structures for a subcaliber projectile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332023A1 (en) * 1983-09-06 1985-03-21 Helmut Dipl.-Phys. 5529 Bauler Nußbaum DRIVING MIRROR FOR SUB-CALIBRAL BULLETS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3430572A (en) * 1966-11-22 1969-03-04 Avco Corp Disintegrating sabot
US3446147A (en) * 1966-03-04 1969-05-27 Oerlikon Buehrle Holding Ag Casing for the sabot of a projectile
US4040359A (en) * 1976-05-14 1977-08-09 The United States Of America As Represented By The Secretary Of The Army Discarding frangible rotating band

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446147A (en) * 1966-03-04 1969-05-27 Oerlikon Buehrle Holding Ag Casing for the sabot of a projectile
US3430572A (en) * 1966-11-22 1969-03-04 Avco Corp Disintegrating sabot
US4040359A (en) * 1976-05-14 1977-08-09 The United States Of America As Represented By The Secretary Of The Army Discarding frangible rotating band

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069836A2 (en) * 1981-05-16 1983-01-19 Rheinmetall GmbH Projectile
EP0069836A3 (en) * 1981-05-16 1983-06-22 Rheinmetall GmbH Projectile
US5148750A (en) * 1981-12-24 1992-09-22 Rheinmetall Gmbh Unitary projectile
EP0315125A2 (en) * 1987-11-06 1989-05-10 DIEHL GMBH &amp; CO. Sabot projectile for an insert barrel
EP0315125A3 (en) * 1987-11-06 1989-06-28 DIEHL GMBH &amp; CO. Sabot projectile for an insert barrel
US5878315A (en) * 1996-08-30 1999-03-02 Samsung Electronics Co., Ltd. Electrophotographic printer
WO2011044980A1 (en) * 2009-10-14 2011-04-21 Nitrochemie Aschau Gmbh Sabot
RU2734805C2 (en) * 2016-07-11 2020-10-23 Рейнметаль Ваффе Муницион Гмбх Separable tray with bionic structures for a subcaliber projectile
US10969211B2 (en) 2016-07-11 2021-04-06 Rheinmetall Waffe Munition Gmbh Sabot with bionic structures

Also Published As

Publication number Publication date
DE3034471A1 (en) 1982-04-29
EP0047820A3 (en) 1982-07-07

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