EP3622243A1 - Obturateur faisant partie intégrante d'une bande de guidage sur un projectile d'artillerie - Google Patents

Obturateur faisant partie intégrante d'une bande de guidage sur un projectile d'artillerie

Info

Publication number
EP3622243A1
EP3622243A1 EP18713666.8A EP18713666A EP3622243A1 EP 3622243 A1 EP3622243 A1 EP 3622243A1 EP 18713666 A EP18713666 A EP 18713666A EP 3622243 A1 EP3622243 A1 EP 3622243A1
Authority
EP
European Patent Office
Prior art keywords
obturator
spin
projectile
guide
guide strip
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
EP18713666.8A
Other languages
German (de)
English (en)
Other versions
EP3622243B1 (fr
Inventor
Alexander Paesch
Ole Dau
Alfons Sackarndt
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 EP3622243A1 publication Critical patent/EP3622243A1/fr
Application granted granted Critical
Publication of EP3622243B1 publication Critical patent/EP3622243B1/fr
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
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels

Definitions

  • the invention relates to a spin-stabilized projectile, in particular an artillery projectile with a guide band and with a sealing tape, an obturator.
  • An obturator has the function of a sealing ring, in which only under appropriate pressurization whose full sealing performance is achieved.
  • the technical requirements for such a component are predetermined and binding.
  • An artillery projectile with a guide strip pressed into an annular groove of the projectile casing is shown in DE 669 858.
  • An artillery ammunition is known from EP 2 529 180 B1, which has a guide band at the rear, which is designed in several parts.
  • the partial guide bands are incorporated in separate dovetail grooves, such that the partial guide bands directly adjoin one another. As a result, the centrifugal forces occurring are better distributed.
  • the partial guide bands are designed to allow the material to flow during the tube pass.
  • a sealing ring of DE 20 2014 005 442 U1 is arranged on the rear side of the guide band and held in an outer groove of the projectile casing.
  • a spin-stabilized artillery projectile is known from DE 198 55 536 A1, which has a metallic guide strip and a sealing ring arranged on the rear side of the guide strip for transmitting the twist to the projectile.
  • the sealing ring is designed as a metal ring, which is arranged in an annular groove of the projectile that they rotate freely with respect to the projectile can.
  • a spin-stabilized carrier projectile with a metallic guide band and a plastic sealing ring located behind it for complete sealing is known.
  • an attachment ring made of plastic is arranged in the weft direction.
  • the attachment ring includes an end-side support surface which rests in the axial rearward direction on a parallel end face of the guide band. The separation of the Ansetzringes done by at least one arranged in the lateral region longitudinal slot immediately when leaving the gun barrel.
  • a spin stabilized artillery projectile with a metallic guide band and a sealing ring made of plastic describes the DE 198 55 535 A1.
  • the guide tape has, viewed in the direction of the longitudinal axis of the projectile, at least one annular groove in which the sealing ring is arranged and is connected to the projectile wall positively and or non-positively. A mechanical damage or destruction or stripping of the sealing ring should thereby be reliably prevented, does not adversely affect its sealing function.
  • the present invention is based on the idea to reverse the disadvantage of the known solutions in an advantage.
  • Complete detachment of the sealing ring or obturator is expressly desired according to the invention.
  • a design interpretation of an interface between a trailing edge of a guide band and a front edge of an obturator or sealing ring is made, which favors a complete detachment of the obturator after the mouth passage.
  • the obturator according to the invention becomes an integral part of a guide band.
  • the function of the obturator is firmly integrated into the guide band structure. A non-positive or positive connection with the projectile wall does not take place.
  • the obturator is preferably made of plastic, for example polyamide.
  • the projectile has a guide band or a guide band structure, which consists of a single or individual pressed or welded ring (s).
  • the positioning of the obturator takes place in at least one groove or compensating groove in the guide band or the guide band structure.
  • the compensating groove in the guide band or the compensating grooves in the guide band structure are preferably centered, or at least such that during the passage through the tube, the rearwardly orienting guide band material pushes the obturator / sealing ring out of the compensation groove backwards or upwards.
  • the compensation groove is preferably trapezoidal in section, preferably isosceles. Pointing to the projectile, the compensation groove has a narrower surface than the barrel, resulting in the trapezoidal shape. This trapezoidal shape promotes the detachment of the obturator or sealing ring during the pipe run. During pipe passage, the sealing ring is pushed outwards or upwards out of the compensation groove like an O-ring by the rearwardly orienting guide strip material. This action leads to a sealing effect during the pipe passage. The obturator / seal as a single part itself is no longer available. There remains only a gas slip reducing element in the guide band to keep the pressure and the resulting speed scatters as low as possible. A centrifugal force-induced release after passage of the mouth is greatly simplified by the trapezoidal shape.
  • the compensating groove can also be rectangular or square on average.
  • the plastic ring or sealing ring as an integral function-relevant part of the projectile is much more robust and störunan intuitioner. Even untrained users recognize clearly that the plastic ring does not serve as protection of the guide band, since the plastic ring is not placed on the guide belt but in this.
  • the guide material displaced rearwardly at the tube passage collides selectively with the sealing ring material in the guide band compensation groove, because this collision raises the sealing metric while additionally pressing against the tube wall in an extremely sealing manner.
  • the guide band contains, viewed in the direction of a longitudinal axis (3) of the projectile, at least one compensation groove.
  • the at least one obturator is arranged in the at least one compensation groove of the guide band.
  • the cross section of the compensation groove is preferably trapezoidal, but may also be rectangular or square.
  • This invention is also advantageous in that it is simple and straightforward.
  • the solution is robust against external influences. Remaining plastic remnants on the projectile are avoided when performing the task as an obturator.
  • the figure shows the cross section of a spin-stabilized artillery projectile 1 according to the invention in the region of a guide strip 2, for example made of brass.
  • the guide tape 2 is - seen in the direction of a longitudinal axis 3 of the projectile 1 - in the present embodiment of at least two guide belt parts 4, 5 together.
  • the guide band is in two parts, it usually consists of two materials, for example brass and / or iron. These guide strip parts 4, 5 are introduced into respective grooves 6, 7 in the projectile 1. These grooves 6, 7 preferably have a dovetail shape.
  • the guide band 2 can also be made in one piece. Welding of the guide strip 2 (4, 5) is also possible.
  • a compensation groove 8, 9 In the guide band parts 4, 5 is introduced in each case a compensation groove 8, 9.
  • This compensation groove 8, 9 has in section Favor a trapezoidal shape.
  • the narrow side 10 Smaller area
  • the wider side 1 1 (larger area) concludes with the guide belt parts 4, 5, preferably without overhang and thus flush with the surface.
  • each preferably made of plastic sealing ring or obturator 12, 13 is arranged.
  • the shape of the obturator 12, 13 is adapted to the associated compensation groove 8, 9.
  • the obturator 12, 13 is pushed outwards or upwards out of the compensation groove 8, 9 by the rearwardly orienting guide band material of the guide band parts. During the pipe run, these seal off.
  • the metallic guide band area behind the positioning of the obturator 12, 13 shears it off, so that the obturator 12, 13 with exit of the artillery projectile 1 from the weapon barrel is no longer part of the guide band 2 (4, 5).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Gasket Seals (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

L'invention concerne un projectile d'artillerie (1) gyrostabilisé comprenant au moins une bande de guidage (2) et au moins un obturateur (12, 13), la bande de guidage (2) contenant au moins une rainure de compensation (8, 9), et l'obturateur ou les obturateurs (12, 13) étant agencés dans la rainure de compensation (8, 9) de la bande de guidage (2). La section transversale de la rainure de compensation (8, 9) est de préférence trapézoïdale, mais peut également être rectangulaire ou carrée. Du fait que l'obturateur (12, 13) est entièrement détaché, des résidus sont évités.
EP18713666.8A 2017-05-12 2018-03-27 Obturateur faisant partie intégrante d'une bande de guidage sur un projectile d'artillerie Active EP3622243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017110426.7A DE102017110426A1 (de) 2017-05-12 2017-05-12 Führungsbandintegraler Obturator am Artilleriegeschoss
PCT/EP2018/057764 WO2018206194A1 (fr) 2017-05-12 2018-03-27 Obturateur faisant partie intégrante d'une bande de guidage sur un projectile d'artillerie

Publications (2)

Publication Number Publication Date
EP3622243A1 true EP3622243A1 (fr) 2020-03-18
EP3622243B1 EP3622243B1 (fr) 2022-05-04

Family

ID=61800546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18713666.8A Active EP3622243B1 (fr) 2017-05-12 2018-03-27 Obturateur faisant partie intégrante d'une bande de guidage sur un projectile d'artillerie

Country Status (8)

Country Link
US (1) US11035655B2 (fr)
EP (1) EP3622243B1 (fr)
AU (1) AU2018264592B2 (fr)
CA (1) CA3055488C (fr)
DE (1) DE102017110426A1 (fr)
ES (1) ES2914864T3 (fr)
IL (1) IL270254B (fr)
WO (1) WO2018206194A1 (fr)

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US32949A (en) * 1861-07-30 Improved mode of preparing projectiles for ordnance
CH45337A (de) * 1908-11-05 1909-11-01 Garbriel Wang Eystein Dichtungsvorrichtung an Artilleriegeschossen zum Vermeiden der Ausbrennung von Geschützrohren
FR689095A (fr) * 1929-01-31 1930-09-02 Anciens Ets Skoda Dispositions pour prolonger la durée de service des tubes de canons
FR745791A (fr) * 1931-05-13 1933-05-16
GB574049A (en) * 1940-06-11 1945-12-19 Frederick Geoffrey Lees Johnso Improvements in or relating to driving bands for shells
US2856856A (en) * 1955-06-02 1958-10-21 Louis S Michael Segmented rotating band for artillery projectiles
US2996012A (en) * 1955-11-17 1961-08-15 Rex B Butler Rotating band and seat therefor
US3431815A (en) * 1968-01-24 1969-03-11 Us Army Discardable rotating band
US3744426A (en) * 1972-04-17 1973-07-10 Us Navy Rotary sabot projectile
US4441429A (en) * 1981-12-23 1984-04-10 The United States Of America As Represented By The Secretary Of The Navy Retainer for a projectile rotating band
US4552071A (en) * 1982-06-15 1985-11-12 United Technologies Corporation Two-piece despin obturator
DE3248011C1 (de) * 1982-12-24 1984-09-20 Karl Schmidt Gmbh, 7107 Neckarsulm Fuehrungsband fuer Geschosse
DE3913497A1 (de) * 1989-04-25 1989-12-14 Daniel Bongers Ringrillen-fuehrungsband
DE4000167C2 (de) * 1990-01-05 1994-04-14 Rheinmetall Gmbh Drallstabilisiertes Trägergeschoß mit einem metallischen Führungsband
DE4330416C2 (de) 1993-09-08 1998-07-09 Rheinmetall Ind Ag Verfahren zum Aufschweißen eines Führungsbandes aus Weicheisen auf eine Geschoßhülle aus Stahl
DE19818411C2 (de) * 1998-04-24 2002-04-18 Rheinmetall W & M Gmbh Drallstabilisiertes Geschoß und Verfahren zu seiner Herstellung
DE19855535A1 (de) * 1998-12-02 2000-06-08 Rheinmetall W & M Gmbh Drallstabilisiertes Artilleriegeschoß
DE19855536A1 (de) * 1998-12-02 2000-06-08 Rheinmetall W & M Gmbh Drallstabilisiertes Artilleriegeschoß
US6796068B2 (en) * 2000-09-05 2004-09-28 Harold Crowson Muzzleloading bullet with expanding pin for gas check
DE102010006221A1 (de) * 2010-01-28 2011-08-18 Rheinmetall Waffe Munition GmbH, 29345 Drallstabilisiertes Geschoss
CN103071891B (zh) * 2012-12-28 2015-07-15 哈尔滨工业大学 一种软铁夹纯铜复合弹带的焊接方法及其结构
DE202014005442U1 (de) * 2014-07-03 2014-08-12 Bundesrepublik Deutschland, vertreten durch das BMVg, vertreten durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr Artilleriegeschoss mit einem Dichtring

Also Published As

Publication number Publication date
CA3055488C (fr) 2022-04-19
ES2914864T3 (es) 2022-06-17
CA3055488A1 (fr) 2018-11-15
AU2018264592B2 (en) 2021-04-08
DE102017110426A1 (de) 2018-11-15
EP3622243B1 (fr) 2022-05-04
IL270254B (en) 2022-09-01
US20200080823A1 (en) 2020-03-12
US11035655B2 (en) 2021-06-15
WO2018206194A1 (fr) 2018-11-15
IL270254A (fr) 2019-12-31
AU2018264592A1 (en) 2019-10-31

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