EP0777101A1 - Mechanical unlocking system together with aerodynamic breaking, for missile sectons - Google Patents
Mechanical unlocking system together with aerodynamic breaking, for missile sectons Download PDFInfo
- Publication number
- EP0777101A1 EP0777101A1 EP96402543A EP96402543A EP0777101A1 EP 0777101 A1 EP0777101 A1 EP 0777101A1 EP 96402543 A EP96402543 A EP 96402543A EP 96402543 A EP96402543 A EP 96402543A EP 0777101 A1 EP0777101 A1 EP 0777101A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sections
- micro
- cylinders
- section
- separation
- 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
Links
- 238000000926 separation method Methods 0.000 claims description 12
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
- F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
Definitions
- the present invention relates to a system for separating machine sections with mechanical unlocking making it possible to decouple two sections of a machine.
- An object of the invention is therefore a separation system free from these drawbacks thanks to the use of micro-jacks actuated by a pyrotechnic gas generator.
- an aerodynamic exhaust is provided during the separation of the sections thanks to releasable aerodynamic flaps mounted on one of the sections.
- Figure 1 a machine comprising at least two sections, 1 and 2, the section 2 being for example the rear part.
- the separation system according to the invention s 'between the two sections 1 and 2. It comprises a portion in the form of a hub 13 integral with the section 1 and in which micro-cylinders are arranged radially 3.
- the fingers 7 of the micro-cylinders are directed outwards and come be housed in corresponding radial housings 15 of a cylindrical casing 14 extending the other section 2. These fingers 7 therefore secure the two sections when the micro-jacks are not actuated.
- annular chamber 4 intended to distribute uniformly between the micro-cylinders the pressure prevailing in the chamber.
- the system also includes aerodynamic flaps 5, here two in number, releasable during unlocking.
- flaps are mounted on the section 2 by means of an articulation 10 around a transverse tangential axis 11. They are fixed in the retracted position to the finger 7 of a micro-jack 3 vis-à-vis by a rupture screw 9.
- a peripheral segment 6 (Figs. 4 and 5) can be provided, the sides of which are inclined opposite inclined sides complementary to the envelopes of sections 1 and 2.
- the segment comes to brace and wedge the two envelopes.
- segment 6 ensures good mechanical transmission with backlash and that the system allows the connection between the two sections to be unlocked simultaneously and the aerodynamic flaps to be released with a single event.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
- Looms (AREA)
Abstract
Description
La présente invention se rapporte à un système de séparation de tronçons d'engin à déverrouillage mécanique permettant de désaccoupler deux tronçons d'un engin.The present invention relates to a system for separating machine sections with mechanical unlocking making it possible to decouple two sections of a machine.
Une telle séparation de deux tronçons est par exemple nécessaire dans le cas d'un missile en plusieurs parties lorsque l'une de ces parties a fini de remplir son rôle.Such separation of two sections is for example necessary in the case of a missile in several parts when one of these parts has finished fulfilling its role.
De nombreux systèmes existent assurant la découpe ou le désaccouplement sur un engin en vol. Parmi ceux-ci, on peut citer les cordeaux découpeurs, les sacs d'éjection gonflables ou les chambres pyrotechniques à rupture d'enveloppe.Many systems exist ensuring cutting or uncoupling on an aircraft in flight. Among these, there may be mentioned cutting cords, inflatable ejection bags or pyrotechnic chambers with envelope rupture.
Cependant tous ces systèmes présentent un inconvénient important qui est la création d'une onde de choc sur l'engin pouvant perturber ou endommager celui-ci et ses capteurs. D'autre part, ces systèmes causent la projection d'éclats vers l'extérieur. Ceci est un inconvénient du point de vue de la sécurité de stockage en cas de déclenchement intempestif.However, all these systems have an important drawback which is the creation of a shock wave on the machine which can disturb or damage it and its sensors. On the other hand, these systems cause the projection of shards towards the outside. This is a drawback from the point of view of storage security in the event of inadvertent tripping.
Un objet de l'invention est donc un système de séparation exempt de ces inconvénients grâce à l'utilisation de micro-vérins actionnés par un générateur de gaz pyrotechnique.An object of the invention is therefore a separation system free from these drawbacks thanks to the use of micro-jacks actuated by a pyrotechnic gas generator.
Selon l'invention, il est donc prévu un système de séparation de tronçons d'engin à déverrouillage mécanique permettant de désaccoupler deux tronçons d'un engin, caractérisé en ce qu'il comprend :
- un moyeu comportant une pluralité de micro-vérins disposés radialement, ledit moyeu étant solidaire d'un desdits tronçons ;
- une enveloppe cylindrique prolongeant l'extrémité de l'autre tronçon et percée de logements radiaux pour recevoir les doigts, dirigés vers l'extérieur, desdits micro-vérins, en position assemblée ;
- une chambre annulaire disposée autour desdits micro-vérins pour répartir uniformément la pression qui y règne vers lesdits micro-vérins ; et
- des moyens pyrotechniques pour générer dans ladite chambre une pression actionnant lesdits micro-vérins pour retracter lesdits doigts vers l'intérieur et désaccoupler ainsi les deux tronçons.
- a hub comprising a plurality of micro-cylinders arranged radially, said hub being integral with one of said sections;
- a cylindrical envelope extending the end of the other section and pierced with radial housings to receive the fingers, directed outwards, of said micro-jacks, in the assembled position;
- an annular chamber arranged around said micro-cylinders to uniformly distribute the pressure therein towards said micro-cylinders; and
- pyrotechnic means for generating in said chamber a pressure actuating said micro-cylinders to retract said fingers inward and thus uncoupling the two sections.
Ainsi, on élimine tous les risques pour l'engin du fait de l'absence d'onde de choc ainsi que les risques dus à la projection d'éclats vers l'extérieur en cas de déclenchement lors du stockage de l'engin.Thus, all the risks for the machine are eliminated because of the absence of a shock wave as well as the risks due to the projection of shards towards the outside in the event of triggering during the storage of the machine.
Selon un autre aspect de l'invention, on assure un échappement aérodynamique lors de la séparation des tronçons grâce à des volets aérodynamiques libérables montés sur un des tronçons.According to another aspect of the invention, an aerodynamic exhaust is provided during the separation of the sections thanks to releasable aerodynamic flaps mounted on one of the sections.
L'invention sera mieux comprise et d'autres caractéristiques et avantages apparaîtront à l'aide de la description ci-après et des dessins joints où :
- la figure 1 est une vue en plan d'un engin équipé du système selon l'invention ;
- les figures 2 et 3 sont des vues en coupe détaillant le système selon l'invention ;
- la figure 4 est une vue en perspective schématique d'un engin avec le système selon l'invention ; et
- la figure 5 représente en coupe partielle un détail du système selon l'invention.
- Figure 1 is a plan view of a machine equipped with the system according to the invention;
- Figures 2 and 3 are sectional views detailing the system according to the invention;
- Figure 4 is a schematic perspective view of a machine with the system according to the invention; and
- Figure 5 shows in partial section a detail of the system according to the invention.
Sur la figure 1 est représenté un engin comprenant au moins deux tronçons, 1 et 2, le tronçon 2 étant par exemple la partie arrière. Comme on le voit mieux en se reportant également aux figures 2 à 5, où la figure 2 est une coupe selon la ligne A-A de la figure 1 et la figure 3 une coupe selon la ligne B-B, le système de séparation selon l'invention s'intercale entre les deux tronçons 1 et 2. Il comporte une partie en forme de moyeu 13 solidaire du tronçon 1 et dans lequel sont disposés radialement des micro-vérins 3. Les doigts 7 des micro-vérins sont dirigés vers l'extérieur et viennent se loger dans des logements radiaux 15 correspondants d'une enveloppe cylindrique 14 prolongeant l'autre tronçon 2. Ces doigts 7 solidarisent donc les deux tronçons lorsque les micro-vérins ne sont pas actionnés.In Figure 1 is shown a machine comprising at least two sections, 1 and 2, the
Autour du moyeu 13 et des micro-vérins 3 est prévue une chambre annulaire 4 destinée à répartir uniformément entre les micro-vérins la pression régnant dans la chambre.Around the
Dans le moyeu 13 est prévu le logement 12 d'une cartouche pyrotechnique 8. Ce logement communique avec la chambre 4.In the
Lorsque le fonctionnement de la cartouche 8 est déclenché, le gaz sous pression généré vient actionner les micro-vérins 3 dont les doigts 7 se rétractent à l'intérieur en déverrouillant ainsi les deux tronçons 1 et 2.When the operation of the
Pour assurer la séparation des deux tronçons lors du déverrouillage, le système comprend aussi des volets aérodynamiques 5, ici au nombre de deux, libérables lors du déverrouillage. Ces volets sont montés sur le tronçon 2 par l'intermédiaire d'une articulation 10 autour d'un axe tangentiel transversal 11. Ils sont fixés en position rétractée au doigt 7 d'un micro-vérin 3 en vis-à-vis par une vis de rupture 9.To ensure the separation of the two sections during unlocking, the system also includes
Ainsi, lors du déverrouillage, le mouvement de retrait des doigts 7 assure la rupture des vis 9 ce qui libère les volets 5. Ceux-ci prennent alors la position représentée en pointillés sur la figure 2. Le tronçon 1 poursuit son mouvement dû à la vitesse initiale de l'engin cependant que le tronçon 2 est freiné aérodynamiquement par les volets 5 ce qui assure la séparation effective des deux tronçons.Thus, during unlocking, the movement of withdrawal of the
Pour le montage des différents éléments du système, un jeu axial est nécessaire. Pour le compenser après montage, on peut prévoir un segment périphérique 6 (Figs. 4 et 5) dont les flancs sont inclinés en vis-à-vis de flancs inclinés complémentaires des enveloppes des tronçons 1 et 2. Au moyen de vis de pression disposées de manière connue, le segment vient s'arc-bouter et caler les deux enveloppes.For the assembly of the various elements of the system, an axial clearance is necessary. To compensate for this after mounting, a peripheral segment 6 (Figs. 4 and 5) can be provided, the sides of which are inclined opposite inclined sides complementary to the envelopes of
Les principaux avantages d'un tel système de séparation selon l'invention ont déjà été mentionnés plus haut. On peut y ajouter que l'utilisation du segment 6 assure une bonne transmission mécanique avec rattrapage du jeu et que le système permet de déverrouiller simultanément la liaison entre les deux tronçons et de libérer les volets aérodynamiques avec un seul événement.The main advantages of such a separation system according to the invention have already been mentioned above. We can add that the use of
Bien entendu, l'exemple de réalisation décrit n'est nullement limitatif de l'invention.Of course, the embodiment described is in no way limitative of the invention.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9514077 | 1995-11-28 | ||
FR9514077A FR2741710B1 (en) | 1995-11-28 | 1995-11-28 | MECHANICAL UNLOCKING AND AERODYNAMIC EXHAUST SEPARATION SYSTEM |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0777101A1 true EP0777101A1 (en) | 1997-06-04 |
EP0777101B1 EP0777101B1 (en) | 2001-02-28 |
Family
ID=9484955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960402543 Expired - Lifetime EP0777101B1 (en) | 1995-11-28 | 1996-11-26 | Mechanical unlocking system together with aerodynamic breaking, for missile sectons |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0777101B1 (en) |
DE (1) | DE69611889T2 (en) |
FR (1) | FR2741710B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012020191A1 (en) * | 2010-08-10 | 2012-02-16 | Astrium Sas | Attachment device with pyrotechnic bolt |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112124611B (en) * | 2020-08-22 | 2023-11-28 | 西安科为实业发展有限责任公司 | Shelling separation system and method for cylindrical jet type folding wing aircraft |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2154307A (en) * | 1984-02-15 | 1985-09-04 | Portsmouth Aviat Limited | Improved store for carriage on aircraft |
US5020436A (en) * | 1989-07-24 | 1991-06-04 | General Dynamics Corp., Air Defense Systems Div. | Booster retarding apparatus |
US5318255A (en) * | 1992-06-22 | 1994-06-07 | Hughes Aircraft Company | Stage separation mechanism for space vehicles |
-
1995
- 1995-11-28 FR FR9514077A patent/FR2741710B1/en not_active Expired - Fee Related
-
1996
- 1996-11-26 EP EP19960402543 patent/EP0777101B1/en not_active Expired - Lifetime
- 1996-11-26 DE DE1996611889 patent/DE69611889T2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2154307A (en) * | 1984-02-15 | 1985-09-04 | Portsmouth Aviat Limited | Improved store for carriage on aircraft |
US5020436A (en) * | 1989-07-24 | 1991-06-04 | General Dynamics Corp., Air Defense Systems Div. | Booster retarding apparatus |
US5318255A (en) * | 1992-06-22 | 1994-06-07 | Hughes Aircraft Company | Stage separation mechanism for space vehicles |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012020191A1 (en) * | 2010-08-10 | 2012-02-16 | Astrium Sas | Attachment device with pyrotechnic bolt |
FR2963803A1 (en) * | 2010-08-10 | 2012-02-17 | Astrium Sas | FIXING DEVICE WITH PYROTECHNIC LOCK |
US8967030B2 (en) | 2010-08-10 | 2015-03-03 | Airbus Defence And Space Sas | Attachment device with pyrotechnic bolt |
Also Published As
Publication number | Publication date |
---|---|
DE69611889D1 (en) | 2001-04-05 |
DE69611889T2 (en) | 2001-08-30 |
FR2741710B1 (en) | 1998-01-02 |
FR2741710A1 (en) | 1997-05-30 |
EP0777101B1 (en) | 2001-02-28 |
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