WO2007057550A1 - Device for mounting a weapon system on a vehicle chassis - Google Patents

Device for mounting a weapon system on a vehicle chassis Download PDF

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Publication number
WO2007057550A1
WO2007057550A1 PCT/FR2006/002509 FR2006002509W WO2007057550A1 WO 2007057550 A1 WO2007057550 A1 WO 2007057550A1 FR 2006002509 W FR2006002509 W FR 2006002509W WO 2007057550 A1 WO2007057550 A1 WO 2007057550A1
Authority
WO
WIPO (PCT)
Prior art keywords
weapon system
subframe
chassis
frame
fixing
Prior art date
Application number
PCT/FR2006/002509
Other languages
French (fr)
Other versions
WO2007057550A8 (en
Inventor
Christophe Jamet
Ludovic Dupont
Franck Pollet
Philippe Grelat
Original Assignee
Nexter Systems
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 Nexter Systems filed Critical Nexter Systems
Priority to AT06831109T priority Critical patent/ATE498814T1/en
Priority to DE602006020171T priority patent/DE602006020171D1/en
Priority to PL06831109T priority patent/PL1960729T3/en
Priority to JP2008540647A priority patent/JP4901875B2/en
Priority to DK06831109.1T priority patent/DK1960729T3/en
Priority to EP06831109A priority patent/EP1960729B1/en
Publication of WO2007057550A1 publication Critical patent/WO2007057550A1/en
Priority to IL191606A priority patent/IL191606A/en
Publication of WO2007057550A8 publication Critical patent/WO2007057550A8/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/34—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles on wheeled or endless-track vehicles

Definitions

  • the technical field of the invention is that of devices for fixing a weapon system on a vehicle chassis.
  • Self-propelled weapons systems are usually attached to a turret that is attached to an armored chassis.
  • the mechanical characteristics of the turret and the frame are defined so as to ensure the resistance of these different elements to the shooting constraints.
  • Patent FR-2663727 also discloses a device for mounting a mortar on a truck. This device proposes to fix the mortar on a firing plate itself linked to the false frame by an elastic connection means.
  • the false frame also carries a stabilizer that bears on the ground.
  • EP-1231129 discloses a connecting means between a plate and a vehicle chassis, a connecting means which comprises four points: two pivot connections (arranged at the front and rear of the plateau at a central axis) and two simple supports arranged laterally on either side of the central axis and between the pivots.
  • the object of the invention is to propose a connection device which, with a reduced mass, makes it possible to ensure the connection between a carrier vehicle chassis and a weapon system while minimizing the stresses to which the carrier chassis is subjected during firing.
  • the subject of the invention is a device for attaching a weapon system to a vehicle chassis, a device comprising a false chassis carrying the weapon system and secured to the chassis by a connecting means, characterized in that that the connecting means comprises at least two attachment points, arranged between the frame and the subframe and distributed on the lateral faces of the frame and false frame on either side of the weapon system, attachment points formed of lugs integral with the chassis, lugs each carrying a rod, parallel to the lateral faces of the chassis and subframe, and on which is mounted a block secured to the subframe, block that can both translate and pivot relative to the rod, so compared to the chassis.
  • the legs will be fixed on both sides of the frame on side faces of spars.
  • the blocks may be fixed to the subframe by means of brackets integral side faces of side beams of the subframe.
  • the blocks may be fixed to the brackets by securing means, spring means being interposed between the securing means and the brackets.
  • the stiffness of the spring means will advantageously be different from one point of attachment to the other, the stiffness being defined according to the deformations that the point of attachment must undergo.
  • the axis of the securing means may be remote from the pivot axis of the block.
  • the device may include at least six pairs of attachment points.
  • the device may comprise a positioning pin secured to the frame at a median plane thereof, pivot cooperating with a socket carried by the false frame.
  • the positioning pin will preferably be disposed near the implantation of the weapon system on the subframe.
  • the attachment points will advantageously be closer to each other in the vicinity of the implantation of the weapon system on the subframe.
  • FIG. 1 schematically represents a weapon system linked to a carrier vehicle by a device according to the invention
  • FIG. 2 is a side view of an embodiment of a point of attachment
  • FIG. 3 is a cross-sectional view of the point of attachment, cut along the plane whose track AA is marked in FIG. 2;
  • FIG. 4a is a diagrammatic plan view of the false frame intended to carry the weapon system
  • FIG. 4b shows a schematic top view of the chassis of the carrier vehicle (chassis shown only),
  • FIG. 4c shows a top view of the assembly of the subframe and chassis.
  • a vehicle 1 carries a weapon system 2 which is here an artillery system including a large caliber gun (caliber greater than 90 mm).
  • the vehicle 1 is a truck comprising a cabin 3 carried by a chassis 4. It comprises a ground connection comprising here (by way of non-limiting example) two axles 5 with wheels.
  • the weapon system 2 comprises a tube 6 sliding in a sled 7, which is itself pivotally mounted on a carriage 8 by pins 9.
  • the carriage is carried by a plate 12 or subframe.
  • the tube 6 carries at its front end a muzzle brake 10.
  • the weapon or artillery system 2 is shown here in an extremely simplified manner. It comprises of course and in a usual manner one or more hydraulic firing brakes (not shown) interposed between the recoil mass (tube 6 and brake 10) and the sled 7 and at least one recuperator (not shown) ensuring the back in battery after firing.
  • a rear stabilizer 11 is articulated (articulation 11a) on the plate 12 (or on the carriage 8) behind the axis 13 of the rear axle.
  • This stabilizer comprises at least one spade 14 integral with a telescopic arm.
  • the stabilizer 11 ensures before firing a ground anchor of the rear of the vehicle 1, the ground anchor 16 is defined by the position of the spade. One or two arms and one or two spades may be provided. The stabilizer 11 is shown in the figure in the deployed position, the spade 14 anchored in the ground.
  • the telescopic arm 15 can be shortened and the complete stabilizer can then tilt around the hinge 11a and rise.
  • the false frame 12 is secured to the frame 4 of the vehicle by a connecting means which comprises a plurality of attachment points 17a, 17b, 17c, 17h disposed between the frame 4 and the subframe 12 and distributed over the side faces of the chassis and subframes on both sides of the artillery 2.
  • Figure 1 is schematic and shows the false frame 12 disposed at a distance from the frame 4. In fact these two elements are in contact with each other. It can provide a damping means (such as rubber sheets) interposed between the subframe and the frame.
  • FIGS 2 and 3 show in more detail the structure of an attachment point 17.
  • the latter comprises a tab 18 which is fixed to the frame 4 by bolts (not shown) fixed through holes 19.
  • the tab comprises two lateral flanges 31a and 31b carrying bores 21 and between which is disposed a cylindrical rod 20 axis 27.
  • the rod is stopped in translation relative to the flanges 31a, 31b by conventional means not shown (for example transverse pins or nuts).
  • the rod 20 receives a block 22 which is secured to the false frame 12 via a bracket 23.
  • the axis of the rod 20 is parallel to the side faces of the frame and subframe, thus also parallel to the median planes 32 and 33 of the frame and the subframe (see Figures 4a and 4b).
  • the bracket 23 comprises a sheet metal plate 30a which is welded to a side face of the subframe 12 and on which is welded a profile 30b reinforced by a rib 30c.
  • the block 22 is fixed to the bracket 23 by fastening means which are here screws 24.
  • fastening means which are here screws 24.
  • One or more spring washers 25 are interposed between the head of the screws 24 and the profile 30b.
  • the axis 28 of the screws is thus disposed at a distance D from the pivot axis 27 of the block (see FIG. 3). As far as possible, we will try to minimize this distance D so as to limit the stresses at the level of the connection between the bracket 23 and the subframe 12.
  • washers 25 will be different from one attachment to another. As will be described later, the skilled person will calculate the mechanical stresses on each fastener 17 when firing and it will define the desired mechanical stiffness for each attachment point to minimize mechanical stress. If necessary, depending on the desired stiffness, the washers may be replaced by simple cylindrical spacers.
  • the block 22 can both translate (directions T) and pivot (arrow R) relative to the geometric axis 27 of the rod 20.
  • the subframe 12 is subjected to significant stresses that result in deformations of its structure.
  • the warping (or twisting) of the subframe lead to a pivoting of the side edges of the subframe relative to the chassis. These warps are absorbed by the pivoting capacity R of each block 22 relative to its rod 20, so relative to the frame.
  • the subframe 12 can therefore pivot relative to the chassis 4 at each attachment point 17.
  • the invention thus provides each attachment point 17 of the subframe 12 with a translation and pivoting capacity relative to the chassis 4.
  • the invention While ensuring a safe and light connection between chassis and subframe, the invention thus allows to absorb the deformations caused by the shot and thus to limit the stresses on the chassis 4 of the vehicle 1. This is particularly important when the chassis has a rigid structure that does not tolerate such deformations.
  • Figures 4a and 4b respectively show in simplified top views, the subframe ( Figure 4a) and the frame ( Figure 4b).
  • the frame 4 comprises two lateral spars 29a and 29b on which the different lugs 18 of the attachment points 17 are fixed.
  • the spar 29a thus carries eight tabs 18a, 18b ... 18h in the figure and the spar 29b carries, in a symmetrical manner with respect to the vertical median plane 32, eight other legs also marked 18a, 18b ... 18h.
  • the longitudinal members 29a and 29b are connected to each other by screwed or welded spacers 34, 34a.
  • An intermediate spacer 34a also carries a cylindrical rod or pivot 35 perpendicular to the plane of the frame 4.
  • the subframe 12 shown in Figure 4a is also realized in the form of a welded structure comprising side beams 36a and 3 ⁇ b connected in particular by at least one spacer 37 as well as by a plate 38 on which is fixed a ring 39 intended to receive the carriage 8.
  • the rear portion of the subframe 12 also carries the hinges 11a for the stabilizer or stabilizers (not shown).
  • the lateral beams 3 ⁇ a and 36b each carry eight brackets marked 23a, 23b ... 23h in the figure.
  • the brackets carried on the beam 36b are arranged symmetrically to the brackets of the beam 36a with respect to the median vertical plane 33.
  • the spacer 37 carries a cylindrical sleeve 40 which is intended to receive the rod 35 secured to the chassis 4.
  • FIG. 4c shows the assembly of the subframe 12 on the chassis 4.
  • the correct positioning of the false frame is facilitated by the cooperation of the rod 35 with the sleeve 40.
  • the rod 35 and the sleeve 40 are positioned in the vicinity of the place where the shooting forces are applied. by the weapon system with the false frame, that is to say near the crown 39.
  • the bushing / rod connection makes it possible to position the false frame relative to the chassis but also makes it possible to take back part of the firing forces transmitted from the subframe to the chassis, thus relieving the attachment points 17 during firing.
  • each bracket 23 is above a lug 18.
  • Each lug 18 carries a block 22.
  • the assembly is completed by screwing the brackets 23 on the different blocks 22 so as to constitute the different points fastener 17 of the connecting means.
  • each attachment point will size each attachment point and he will choose the number and distribution of the latter as a function of the characteristics of the weapon system and those of the carrier on which it is desired to install it. Positioning and sizing will be realized by numerical simulation of the firing constraints on the structure.
  • the desired stiffness will be calculated at each attachment point 17 so as to minimize the stresses undergone. This stiffness calculation will define the washers or spacers 25 which will be implemented at each attachment point 17.
  • the invention is particularly useful when the carrier vehicle provided is provided with a rigid chassis.

Abstract

The invention relates to a device for mounting a weapon system on a vehicle chassis, which device comprises a false chassis (12) which bears the weapon system and is secured to the chassis (4) by a connection means (17). This device is characterized in that the connection means comprises at least two attachment points (17) formed by lugs (18) secured to the chassis (4), which lugs each bear a rod (20) on which a block (22) secured to the false chassis (12) is mounted, which block is able both to move translationally and pivot with respect to the rod (20).

Description

DISPOSITIF DE FIXATION D'UN SYSTEME D'ARME SUR UN CHASSIS DE VEHICULE DEVICE FOR FASTENING A WEAPON SYSTEM ON A VEHICLE CHASSIS
Le domaine technique de l'invention est celui des dispositifs permettant de fixer un système d'arme sur un châssis de véhicule.The technical field of the invention is that of devices for fixing a weapon system on a vehicle chassis.
Les systèmes d'armes automoteurs sont habituellement solidaires d'une tourelle qui est fixée à un châssis blindé.Self-propelled weapons systems are usually attached to a turret that is attached to an armored chassis.
Les caractéristiques mécaniques de la tourelle et du châssis sont définies de façon à assurer la résistance de ces différents éléments aux contraintes de tir.The mechanical characteristics of the turret and the frame are defined so as to ensure the resistance of these different elements to the shooting constraints.
On a également proposé de rendre un système d'arme solidaire d'un porteur léger, tel un camion.It has also been proposed to make a weapon system integral with a light carrier, such as a truck.
Dans ce cas, il se pose le problème d'assurer la tenue mécanique des éléments structuraux (châssis porteur et faux châssis) aux contraintes mécaniques induites par le tir du canon. Ces contraintes sont d'autant plus fortes que le calibre du système d'arme est important (par exemple pour un calibre supérieur à 90 mm) .In this case, there is the problem of ensuring the mechanical strength of the structural elements (carrier frame and false frame) to the mechanical stresses induced by firing the barrel. These constraints are even stronger than the caliber of the weapon system is important (for example for a caliber greater than 90 mm).
Les solutions connues (décrites par exemple par le brevet US2004/0216597) proposent de dissocier l'artillerie du porteur à l'aide par exemple des bras télescopiques . Cependant, ces solutions sont complexes à mettre en œuvre et elles entraînent une masse excessive pour le système d' artillerie .Known solutions (described for example by the patent US2004 / 0216597) propose to dissociate the artillery carrier using for example telescopic arms. However, these solutions are complex to implement and result in excessive mass for the artillery system.
On connaît également par le brevet FR-2663727 un dispositif de montage d'un mortier sur un camion. Ce dispositif propose de fixer le mortier sur une plaque de tir liée elle même au faux châssis par un moyen de liaison élastique. Le faux châssis porte par ailleurs un stabilisateur qui prend appui sur le sol.Patent FR-2663727 also discloses a device for mounting a mortar on a truck. This device proposes to fix the mortar on a firing plate itself linked to the false frame by an elastic connection means. The false frame also carries a stabilizer that bears on the ground.
Une telle solution n'est pas transposable au montage d'un système d'arme de gros calibre (telle une artillerie) et pour lequel les efforts de tir sont bien supérieurs. Il ne permet notamment pas de réduire suffisamment les contraintes transmises par le faux châssis au châssis. •Such a solution can not be transposed to the assembly of a large caliber weapon system (such an artillery) and for which the shooting efforts are much higher. In particular, it does not make it possible to sufficiently reduce the stresses transmitted by the subframe to the chassis. •
Le brevet EP-1231129 décrit un moyen de liaison entre un plateau et un châssis de véhicule, moyen de liaison qui comporte quatre points : deux liaisons pivots (disposées à l'avant et à l'arrière du plateau au niveau d'un axe médian) et deux appuis simples disposés latéralement de part et d'autre de l'axe médian et entre les pivots.EP-1231129 discloses a connecting means between a plate and a vehicle chassis, a connecting means which comprises four points: two pivot connections (arranged at the front and rear of the plateau at a central axis) and two simple supports arranged laterally on either side of the central axis and between the pivots.
Cette solution, qui vise le montage d'un plateau classique sur un châssis, n'est pas elle non plus adaptée au montage d'un faux châssis portant un système d'arme de gros calibre tel une artillerie. Les moyens de liaison proposés ne pourront pas en effet résister aux contraintes de tir.This solution, which aims to mount a conventional platform on a chassis, is not it also suitable for mounting a false frame carrying a large caliber weapon system such as an artillery. The means of connection proposed will not be able to withstand shooting constraints.
L'invention a pour but de proposer un dispositif de liaison permettant avec une masse réduite d'assurer la liaison entre un châssis de véhicule porteur et un système d'arme tout en minimisant les contraintes subies par le châssis porteur lors du tir.The object of the invention is to propose a connection device which, with a reduced mass, makes it possible to ensure the connection between a carrier vehicle chassis and a weapon system while minimizing the stresses to which the carrier chassis is subjected during firing.
Ainsi, l'invention a pour objet un dispositif de fixation d'un système d'arme sur un châssis de véhicule, dispositif comportant un faux châssis portant le système d'arme et rendu solidaire du châssis par un moyen de liaison, dispositif caractérisé en ce que le moyen de liaison comprend au moins deux points d'attache, disposés entre le châssis et le faux châssis et répartis sur les faces latérales des châssis et faux châssis de part et d'autre du système d'arme, points d'attache formés de pattes solidaires du châssis, pattes portant chacune une tige, parallèle aux faces latérales des châssis et faux châssis, et sur laquelle est monté un bloc solidaire du faux châssis, bloc pouvant à la fois se translater et pivoter par rapport à la tige, donc par rapport au châssis.Thus, the subject of the invention is a device for attaching a weapon system to a vehicle chassis, a device comprising a false chassis carrying the weapon system and secured to the chassis by a connecting means, characterized in that that the connecting means comprises at least two attachment points, arranged between the frame and the subframe and distributed on the lateral faces of the frame and false frame on either side of the weapon system, attachment points formed of lugs integral with the chassis, lugs each carrying a rod, parallel to the lateral faces of the chassis and subframe, and on which is mounted a block secured to the subframe, block that can both translate and pivot relative to the rod, so compared to the chassis.
Les pattes seront fixées de part et d'autre du châssis sur des faces latérales de longerons.The legs will be fixed on both sides of the frame on side faces of spars.
Les blocs pourront être fixés au faux châssis par l'intermédiaire d'équerres solidaires de faces latérales de poutres latérales du faux châssis.The blocks may be fixed to the subframe by means of brackets integral side faces of side beams of the subframe.
Les blocs pourront être fixés aux équerres par des moyens de solidarisation, des moyens ressorts étant interposés entre les moyens de solidarisation et les équerres.The blocks may be fixed to the brackets by securing means, spring means being interposed between the securing means and the brackets.
Les raideurs des moyens ressorts seront avantageusement différentes d'un point d'attache à l'autre, les raideurs étant définies en fonction des déformations que doit subir le point d'attache.The stiffness of the spring means will advantageously be different from one point of attachment to the other, the stiffness being defined according to the deformations that the point of attachment must undergo.
L'axe des moyens de solidarisation pourra être à distance de l'axe de pivotement du bloc.The axis of the securing means may be remote from the pivot axis of the block.
Le dispositif pourra comprendre au moins six paires de points d'attache.The device may include at least six pairs of attachment points.
Avantageusement le dispositif pourra comprendre un pivot de positionnement solidaire du châssis au niveau d'un plan médian de celui ci, pivot coopérant avec une douille portée par le faux châssis.Advantageously, the device may comprise a positioning pin secured to the frame at a median plane thereof, pivot cooperating with a socket carried by the false frame.
Le pivot de positionnement sera de préférence disposé au voisinage de l'implantation du système d'arme sur le faux châssis .The positioning pin will preferably be disposed near the implantation of the weapon system on the subframe.
Les points d'attache seront avantageusement plus proches les uns des autres au voisinage de l'implantation du système d'arme sur le faux châssis.The attachment points will advantageously be closer to each other in the vicinity of the implantation of the weapon system on the subframe.
L'invention sera mieux comprise à la lecture de la description qui va suivre d'un mode particulier de réalisation, description faite en référence aux dessins annexés et dans lesquels : la figure 1 représente schématiquement un système d'arme lié à un véhicule porteur par un dispositif selon l ' invention, la figure 2 est une vue latérale d'un mode de réalisation d'un point d'attache,The invention will be better understood on reading the following description of a particular embodiment, a description given with reference to the accompanying drawings and in which: FIG. 1 schematically represents a weapon system linked to a carrier vehicle by a device according to the invention, FIG. 2 is a side view of an embodiment of a point of attachment,
- la figure 3 est une vue en coupe du point d'attache, coupe réalisée suivant le plan dont la trace AA est repérée à la figure 2,FIG. 3 is a cross-sectional view of the point of attachment, cut along the plane whose track AA is marked in FIG. 2;
- la figure 4a représente schématiquement en vue de dessus le faux châssis destiné à porter le système d'arme,FIG. 4a is a diagrammatic plan view of the false frame intended to carry the weapon system;
- la figure 4b montre en vue de dessus schématique le châssis du véhicule porteur (châssis représenté seul) ,- Figure 4b shows a schematic top view of the chassis of the carrier vehicle (chassis shown only),
- la figure 4c montre en vue de dessus l'assemblage du faux châssis et du châssis.- Figure 4c shows a top view of the assembly of the subframe and chassis.
En se reportant à la figure 1, un véhicule 1 porte un système d'arme 2 qui est ici un système d'artillerie comprenant un canon de gros calibre (calibre supérieur à 90 mm) . Le véhicule 1 est un camion comprenant une cabine 3 portée par un châssis 4. Il comporte une liaison sol comprenant ici (à titre d'exemple non limitatif) deux essieux 5 dotés de roues .Referring to Figure 1, a vehicle 1 carries a weapon system 2 which is here an artillery system including a large caliber gun (caliber greater than 90 mm). The vehicle 1 is a truck comprising a cabin 3 carried by a chassis 4. It comprises a ground connection comprising here (by way of non-limiting example) two axles 5 with wheels.
Le système d'arme 2 comprend un tube 6, coulissant dans un traîneau 7, qui est lui-même monté pivotant sur un affût 8 par des tourillons 9. L'affût est porté par un plateau 12 ou faux-châssis .The weapon system 2 comprises a tube 6 sliding in a sled 7, which is itself pivotally mounted on a carriage 8 by pins 9. The carriage is carried by a plate 12 or subframe.
Le tube 6 porte au niveau de son extrémité avant un frein de bouche 10.The tube 6 carries at its front end a muzzle brake 10.
Le système d'arme ou artillerie 2 est représenté ici de façon extrêmement simplifiée. Il comporte bien entendu et d'une façon habituelle un ou plusieurs freins de tirs hydrauliques (non représentés) interposés entre la masse reculante (tube 6 et frein 10) et le traîneau 7 ainsi qu'au moins un récupérateur (non représenté) assurant le retour en batterie après tir.The weapon or artillery system 2 is shown here in an extremely simplified manner. It comprises of course and in a usual manner one or more hydraulic firing brakes (not shown) interposed between the recoil mass (tube 6 and brake 10) and the sled 7 and at least one recuperator (not shown) ensuring the back in battery after firing.
Enfin un stabilisateur arrière 11 est articulé (articulation lia) sur le plateau 12 (ou bien sur l'affût 8) en arrière de l'axe 13 de l'essieu arrière.Finally a rear stabilizer 11 is articulated (articulation 11a) on the plate 12 (or on the carriage 8) behind the axis 13 of the rear axle.
Ce stabilisateur comprend au moins une bêche 14 solidaire d'un bras 15 télescopique.This stabilizer comprises at least one spade 14 integral with a telescopic arm.
Le stabilisateur 11 permet d'assurer avant le tir un ancrage au sol de l'arrière du véhicule 1, le point d'ancrage au sol 16 est défini par la position de la bêche. On pourra prévoir un ou deux bras et une ou deux bêches . Le stabilisateur 11 est représenté sur la figure en position déployée, la bêche 14 ancrée dans le sol.The stabilizer 11 ensures before firing a ground anchor of the rear of the vehicle 1, the ground anchor 16 is defined by the position of the spade. One or two arms and one or two spades may be provided. The stabilizer 11 is shown in the figure in the deployed position, the spade 14 anchored in the ground.
Pour permettre le déplacement du véhicule 1, le bras télescopique 15 peut se raccourcir et le stabilisateur complet peut ensuite basculer autour de l'articulation lia et se relever.To allow the movement of the vehicle 1, the telescopic arm 15 can be shortened and the complete stabilizer can then tilt around the hinge 11a and rise.
Conformément à l'invention le faux châssis 12 est rendu solidaire du châssis 4 du véhicule par un moyen de liaison qui comprend plusieurs points d'attache 17a, 17b, 17c, 17h disposés entre le châssis 4 et le faux châssis 12 et répartis sur les faces latérales des châssis et faux châssis, de part et d'autre de l'artillerie 2. La figure 1 est schématique et montre le faux châssis 12 disposé à distance du châssis 4. En fait ces deux éléments sont en contact l'un avec l'autre. On pourra prévoir un moyen amortisseur (tel que des feuilles de caoutchouc) interposé entre le faux châssis et le châssis.According to the invention the false frame 12 is secured to the frame 4 of the vehicle by a connecting means which comprises a plurality of attachment points 17a, 17b, 17c, 17h disposed between the frame 4 and the subframe 12 and distributed over the side faces of the chassis and subframes on both sides of the artillery 2. Figure 1 is schematic and shows the false frame 12 disposed at a distance from the frame 4. In fact these two elements are in contact with each other. It can provide a damping means (such as rubber sheets) interposed between the subframe and the frame.
Les figures 2 et 3 montrent d'une façon plus détaillée la structure d'un point d'attache 17.Figures 2 and 3 show in more detail the structure of an attachment point 17.
Ce dernier comprend une patte 18 qui est fixée au châssis 4 par des boulons (non représentés) fixés au travers de trous 19. La patte comprend deux rebords latéraux 31a et 31b portant des perçages 21 et entre lesquels est disposée une tige 20 cylindrique d'axe 27. La tige est arrêtée en translation par rapport aux rebords 31a, 31b par des moyens classiques non représentés (par exemple des goupilles transversales ou bien des écrous) .The latter comprises a tab 18 which is fixed to the frame 4 by bolts (not shown) fixed through holes 19. The tab comprises two lateral flanges 31a and 31b carrying bores 21 and between which is disposed a cylindrical rod 20 axis 27. The rod is stopped in translation relative to the flanges 31a, 31b by conventional means not shown (for example transverse pins or nuts).
La tige 20 reçoit un bloc 22 qui est rendu solidaire du faux châssis 12 par l'intermédiaire d'une équerre 23.The rod 20 receives a block 22 which is secured to the false frame 12 via a bracket 23.
L'axe de la tige 20 est parallèle aux faces latérales des châssis et faux-châssis, donc également parallèle aux plans médians 32 et 33 du châssis et du faux châssis (voir figures 4a et 4b) .The axis of the rod 20 is parallel to the side faces of the frame and subframe, thus also parallel to the median planes 32 and 33 of the frame and the subframe (see Figures 4a and 4b).
L 'équerre 23 comprend une plaque de tôle 30a qui est soudée sur une face latérale du faux châssis 12 et sur laquelle est soudé un profil 30b renforcé par une nervure 30c.The bracket 23 comprises a sheet metal plate 30a which is welded to a side face of the subframe 12 and on which is welded a profile 30b reinforced by a rib 30c.
Le bloc 22 est fixé à l' équerre 23 par des moyens de solidarisation qui sont ici des vis 24. Une ou plusieurs rondelles ressorts 25 sont interposées entre la tête des vis 24 et le profil 30b. L'axe 28 des vis est disposé ainsi à une distance D de l'axe 27 de pivotement du bloc (voir figure 3) . On cherchera dans la mesure du possible à minimiser cette distance D pour limiter les contraintes au niveau de la liaison entre l' équerre 23 et le faux châssis 12.The block 22 is fixed to the bracket 23 by fastening means which are here screws 24. One or more spring washers 25 are interposed between the head of the screws 24 and the profile 30b. The axis 28 of the screws is thus disposed at a distance D from the pivot axis 27 of the block (see FIG. 3). As far as possible, we will try to minimize this distance D so as to limit the stresses at the level of the connection between the bracket 23 and the subframe 12.
Par ailleurs la nature et le nombre des rondelles 25 seront différents d'une attache à l'autre. Comme cela sera décrit par la suite, l'Homme du Métier calculera les contraintes mécaniques subies au niveau de chaque attache 17 lors du tir et il définira les raideurs mécaniques souhaitées pour chaque point d'attache afin de minimiser les contraintes mécaniques. Le cas échéant, suivant la raideur souhaitée, les rondelles pourront être remplacées par de simples entretoises cylindriques .Furthermore the nature and the number of washers 25 will be different from one attachment to another. As will be described later, the skilled person will calculate the mechanical stresses on each fastener 17 when firing and it will define the desired mechanical stiffness for each attachment point to minimize mechanical stress. If necessary, depending on the desired stiffness, the washers may be replaced by simple cylindrical spacers.
Selon une caractéristique importante de l'invention, le bloc 22 peut à la fois se translater (directions T) et pivoter (flèche R) par rapport à l'axe géométrique 27 de la tige 20.According to an important characteristic of the invention, the block 22 can both translate (directions T) and pivot (arrow R) relative to the geometric axis 27 of the rod 20.
A cet effet un coussinet 26 est interposé entre le bloc 22 et la tige 20 et un jeu (J = Jl + J2) de l'ordre d'une dizaine de millimètres est prévu pour la translation du bloc 22 entre les rebords latéraux 31a et 31b. Il est également possible de ne pas prévoir de coussinet mais uniquement un ajustement glissant entre le bloc 22 et la tige 20.For this purpose a pad 26 is interposed between the block 22 and the rod 20 and a clearance (J = Jl + J2) of the order of ten millimeters is provided for the translation of the block 22 between the side flanges 31a and 31b. It is also possible not to provide a pad but only a sliding fit between the block 22 and the rod 20.
Lors du tir, le faux châssis 12 est soumis à des contraintes importantes qui entraînent des déformations de sa structure.During firing, the subframe 12 is subjected to significant stresses that result in deformations of its structure.
On distingue deux types principaux de déformations: Les flexions du faux châssis qui conduisent concrètement à un rapprochement des différents points d'attache. Ces flexions sont absorbées par la capacité de translation T de chaque bloc 22 par rapport à sa tige 20, donc par rapport au châssis 4. Le faux châssis 12 pourra donc se translater par rapport au châssis 4 au niveau de chaque point d'attache 17.There are two main types of deformations: The bending of the false frame which leads concretely to a rapprochement of the different points of attachment. These flexions are absorbed by the translation capacity T of each block 22 with respect to its rod 20, thus with respect to the chassis 4. The subframe 12 can therefore translate relative to the chassis 4 at each attachment point 17 .
Les gauchissements (ou vrillages) du faux châssis conduisent à un pivotement des rebords latéraux du faux châssis par rapport au châssis. Ces gauchissements sont absorbés par la capacité de pivotement R de chaque bloc 22 par rapport à sa tige 20, donc par rapport au châssis. Le faux châssis 12 pourra donc pivoter par rapport au châssis 4 au niveau de chaque point d'attache 17.The warping (or twisting) of the subframe lead to a pivoting of the side edges of the subframe relative to the chassis. These warps are absorbed by the pivoting capacity R of each block 22 relative to its rod 20, so relative to the frame. The subframe 12 can therefore pivot relative to the chassis 4 at each attachment point 17.
L'invention procure ainsi à chaque point d'attache 17 du faux châssis 12 une capacité de translation et de pivotement par rapport au châssis 4.The invention thus provides each attachment point 17 of the subframe 12 with a translation and pivoting capacity relative to the chassis 4.
Tout en assurant une liaison sûre et légère entre châssis et faux châssis, l'invention permet donc ainsi d'absorber les déformations provoquées par le tir et donc de limiter les contraintes subies par le châssis 4 du véhicule 1. Ceci est particulièrement important quand le châssis a une structure rigide qui ne tolère pas de telles déformations.While ensuring a safe and light connection between chassis and subframe, the invention thus allows to absorb the deformations caused by the shot and thus to limit the stresses on the chassis 4 of the vehicle 1. This is particularly important when the chassis has a rigid structure that does not tolerate such deformations.
Les figures 4a et 4b montrent respectivement en vues de dessus simplifiées, le faux châssis (figure 4a) et le châssis (figure 4b) .Figures 4a and 4b respectively show in simplified top views, the subframe (Figure 4a) and the frame (Figure 4b).
On voit sur la figure 4b que le châssis 4 comprend deux longerons latéraux 29a et 29b sur lesquels sont fixées les différentes pattes 18 des points d'attache 17.It can be seen in FIG. 4b that the frame 4 comprises two lateral spars 29a and 29b on which the different lugs 18 of the attachment points 17 are fixed.
Le longeron 29a porte ainsi huit pattes repérées 18a, 18b...l8h sur la figure et le longeron 29b porte, d'une façon symétrique par rapport au plan médian vertical 32, huit autres pattes également repérées 18a, 18b...l8h.The spar 29a thus carries eight tabs 18a, 18b ... 18h in the figure and the spar 29b carries, in a symmetrical manner with respect to the vertical median plane 32, eight other legs also marked 18a, 18b ... 18h.
Les longerons 29a et 29b sont reliés l'un à l'autre par des entretoises vissées ou soudées 34, 34a. Une entretoise intermédiaire repérée 34a porte par ailleurs une tige cylindrique ou pivot 35 perpendiculaire au plan du châssis 4. Le faux châssis 12 représenté à la figure 4a est réalisé lui aussi sous la forme d'une structure mécano soudée comportant des poutres latérales 36a et 3βb reliées notamment par au moins une entretoise 37 ainsi que par une tôle 38 sur laquelle est fixée une couronne 39 destinée à recevoir l'affût 8.The longitudinal members 29a and 29b are connected to each other by screwed or welded spacers 34, 34a. An intermediate spacer 34a also carries a cylindrical rod or pivot 35 perpendicular to the plane of the frame 4. The subframe 12 shown in Figure 4a is also realized in the form of a welded structure comprising side beams 36a and 3βb connected in particular by at least one spacer 37 as well as by a plate 38 on which is fixed a ring 39 intended to receive the carriage 8.
La partie arrière du faux châssis 12 porte également les articulations lia pour le ou les stabilisateurs (non représentés) .The rear portion of the subframe 12 also carries the hinges 11a for the stabilizer or stabilizers (not shown).
Les poutres latérales 3βa et 36b portent chacune huit équerres repérées 23a, 23b...23h sur la figure. Les équerres portées sur la poutre 36b sont disposées d'une façon symétrique aux équerres de la poutre 36a par rapport au plan vertical médian 33.The lateral beams 3βa and 36b each carry eight brackets marked 23a, 23b ... 23h in the figure. The brackets carried on the beam 36b are arranged symmetrically to the brackets of the beam 36a with respect to the median vertical plane 33.
L 'entretoise 37 porte une douille 40 cylindrique qui est destinée à recevoir la tige 35 solidaire du châssis 4.The spacer 37 carries a cylindrical sleeve 40 which is intended to receive the rod 35 secured to the chassis 4.
La figure 4c montre l'assemblage du faux-châssis 12 sur le châssis 4.FIG. 4c shows the assembly of the subframe 12 on the chassis 4.
Lors du montage, le positionnement correct du faux châssis est facilité par la coopération de la tige 35 avec la douille 40. La tige 35 et la douille 40 sont positionnées au voisinage de l'endroit où les efforts de tirs sont appliqués par le système d'arme au faux châssis, c'est à dire à proximité de la couronne 39.During assembly, the correct positioning of the false frame is facilitated by the cooperation of the rod 35 with the sleeve 40. The rod 35 and the sleeve 40 are positioned in the vicinity of the place where the shooting forces are applied. by the weapon system with the false frame, that is to say near the crown 39.
La liaison douille / tige permet de positionner le faux châssis par rapport au châssis mais permet aussi de reprendre une partie des efforts de tir transmis du faux châssis au châssis, donc de soulager les points d'attache 17 lors du tir.The bushing / rod connection makes it possible to position the false frame relative to the chassis but also makes it possible to take back part of the firing forces transmitted from the subframe to the chassis, thus relieving the attachment points 17 during firing.
Après positionnement, chaque équerre 23 se trouve au- dessus d'une patte 18. Chaque patte 18 porte un bloc 22. L'assemblage est complété par le vissage des équerres 23 sur les différents blocs 22 de façon à constituer ainsi les différents points d'attache 17 du moyen de liaison.After positioning, each bracket 23 is above a lug 18. Each lug 18 carries a block 22. The assembly is completed by screwing the brackets 23 on the different blocks 22 so as to constitute the different points fastener 17 of the connecting means.
On voit sur la figure 4c que les points d'attache sont plus nombreux et plus rapprochés les uns des autres au voisinage de la partie arrière du châssis, c'est à dire au niveau de la couronne 39 de fixation du système d'arme. C'est en effet à cet endroit que les contraintes mécaniques subies sont maximales mais aussi que les déplacements sont minimaux.We see in Figure 4c that the attachment points are more numerous and closer to each other in the vicinity of the rear part of the frame, that is to say at the ring 39 fixing the weapon system. It is in fact at this place that the mechanical stresses undergone are maximum but also that the displacements are minimal.
L'Homme du Métier dimensionnera chaque point d'attache et il choisira le nombre et la répartition de ces derniers en fonctions des caractéristiques du système d'arme et de celles du porteur sur lequel on souhaite l'installer. Le positionnement et le dimensionnement sera réalisé par simulation numérique des contraintes de tir sur la structure.The skilled person will size each attachment point and he will choose the number and distribution of the latter as a function of the characteristics of the weapon system and those of the carrier on which it is desired to install it. Positioning and sizing will be realized by numerical simulation of the firing constraints on the structure.
Lors de ce dimensionnement on calculera par ailleurs la raideur souhaitée au niveau de chaque point d'attache 17 de façon à minimiser les contraintes subies. Ce calcul de raideur permettra de définir les rondelles ou entretoises 25 qui seront mises en œuvre au niveau de chaque point d'attache 17.During this dimensioning, the desired stiffness will be calculated at each attachment point 17 so as to minimize the stresses undergone. This stiffness calculation will define the washers or spacers 25 which will be implemented at each attachment point 17.
Grâce à l'invention il est ainsi possible d'adapter d'une façon relativement simple un système d'arme donné à différents types de véhicules porteurs tout en limitant les contraintes subies par le véhicule porteur lors du tir.Thanks to the invention it is thus possible to adapt in a relatively simple manner a given weapon system to different types of carrier vehicles while limiting the constraints on the carrier vehicle during firing.
L'invention est plus particulièrement utile lorsque le véhicule porteur prévu est doté d'un châssis rigide. The invention is particularly useful when the carrier vehicle provided is provided with a rigid chassis.

Claims

REVENDICATIONS
1. Dispositif de fixation d'un système d'arme (2) sur un châssis (4) de véhicule, dispositif comportant un faux châssis (12) portant le système d'arme et rendu solidaire du châssis par un moyen de liaison, dispositif caractérisé en ce gue le moyen de liaison comprend au moins deux points d'attache (17), disposés entre le châssis (4) et le faux châssis (12) et répartis sur les faces latérales des châssis et faux châssis de part et d'autre du système d'arme (2), points d'attache (17) formés de pattes (18) solidaires du châssis (4), pattes portant chacune une tige (20) parallèle aux faces latérales des châssis et faux châssis, et sur laquelle est monté un bloc (22) solidaire du faux châssis (12), bloc pouvant à la fois se translater et pivoter par rapport à la tige (20), donc par rapport au châssis (4).1. Device for attaching a weapon system (2) to a vehicle frame (4), device comprising a subframe (12) carrying the weapon system and secured to the chassis by a connecting means, device characterized in that the connecting means comprises at least two attachment points (17), arranged between the frame (4) and the subframe (12) and distributed on the side faces of the chassis and subframe of the part and the other of the weapon system (2), attachment points (17) formed of tabs (18) integral with the frame (4), tabs each carrying a rod (20) parallel to the lateral faces of the chassis and subframe, and on which is mounted a block (22) integral with the subframe (12) block that can both translate and pivot relative to the rod (20), so relative to the frame (4).
2. Dispositif de fixation d'un système d'arme selon la revendication 1, dispositif caractérisé en ce que les pattes (18) sont fixées de part et d'autre du châssis (4) sur des faces latérales de longerons (29a, 29b) .2. Device for fixing a weapon system according to claim 1, characterized in that the tabs (18) are fixed on either side of the frame (4) on side faces of spars (29a, 29b). ).
3. Dispositif de fixation d'un système d'arme selon une des revendications 1 ou 2, dispositif caractérisé en ce que les blocs (22) sont fixés au faux châssis (12) par l'intermédiaire d'équerres (23) solidaires de faces latérales de poutres latérales (36a, 3βb) du faux châssis (12) .3. Device for fixing a weapon system according to one of claims 1 or 2, characterized in that the blocks (22) are fixed to the subframe (12) by means of brackets (23) integral with side faces of lateral beams (36a, 3βb) of the subframe (12).
4. Dispositif de fixation d'un système d'arme selon une des revendications 1 à 3, dispositif caractérisé en ce que les blocs (22) sont fixés aux équerres (23) par des moyens de solidarisation (24), des moyens ressorts (25) étant interposés entre les moyens de solidarisation (24) et les équerres (23) .4. Device for fixing a weapon system according to one of claims 1 to 3, characterized in that the blocks (22) are fixed to the brackets (23) by means of fastening (24), spring means ( 25) being interposed between the securing means (24) and the brackets (23).
5. Dispositif de fixation d'un système d'arme selon la revendication 4, dispositif caractérisé en ce que les raideurs des moyens ressorts (25) sont différentes d'un point d'attache (17) à l'autre, les raideurs étant définies en fonction des déformations que doit subir le point d'attache.5. Device for fixing a weapon system according to claim 4, characterized in that the stiffness of the spring means (25) are different from one point of attachment (17) to the other, the stiffness being defined according to the deformations that the point of attachment must undergo.
6. Dispositif de fixation d'un système d'arme selon une des revendications 4 ou 5, dispositif caractérisé en ce que l'axe des moyens de solidarisation (24) est à distance (D) de l'axe de pivotement du bloc.6. Device for fixing a weapon system according to one of claims 4 or 5, characterized in that the axis of the securing means (24) is at a distance (D) from the pivot axis of the block.
7. Dispositif de fixation d'un système d'arme selon une des revendications 1 à 6, dispositif caractérisé en ce qu'il comprend au moins six paires de points d'attache (17) .7. Device for fixing a weapon system according to one of claims 1 to 6, characterized in that it comprises at least six pairs of attachment points (17).
8. Dispositif de fixation d'un système d'arme selon une des revendications 1 à 7, dispositif caractérisé en ce qu'il comprend un pivot de positionnement (35) solidaire du châssis (4) au niveau d'un plan médian (32) de celui ci, pivot coopérant avec une douille (40) portée par le faux châssis (12) .8. Device for fixing a weapon system according to one of claims 1 to 7, characterized in that it comprises a positioning pin (35) integral with the frame (4) at a center plane (32). ) of the latter, pivot cooperating with a sleeve (40) carried by the subframe (12).
9. Dispositif de fixation d'un système d'arme selon la revendication 8, dispositif caractérisé en ce que le pivot de positionnement (35) est disposé au voisinage de l'implantation du système d'arme sur le faux châssis (12).9. Device for fixing a weapon system according to claim 8, characterized in that the positioning pin (35) is disposed in the vicinity of the implantation of the weapon system on the subframe (12).
10. Dispositif de fixation d'un système d'arme selon une des revendications 1 à 9, dispositif caractérisé en ce que les points d'attache (17) sont plus proches les uns des autres au voisinage de l'implantation du système d'arme sur le faux châssis (12) . 10. A device for fixing a weapon system according to one of claims 1 to 9, characterized in that the attachment points (17) are closer to each other in the vicinity of the implantation of the system. weapon on the subframe (12).
PCT/FR2006/002509 2005-11-21 2006-11-13 Device for mounting a weapon system on a vehicle chassis WO2007057550A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT06831109T ATE498814T1 (en) 2005-11-21 2006-11-13 DEVICE FOR FASTENING A WEAPON SYSTEM TO A VEHICLE FRAME
DE602006020171T DE602006020171D1 (en) 2005-11-21 2006-11-13 DEVICE FOR FIXING A WEAPON SYSTEM TO A VEHICLE FRAME
PL06831109T PL1960729T3 (en) 2005-11-21 2006-11-13 Device for mounting a weapon system on a vehicle chassis
JP2008540647A JP4901875B2 (en) 2005-11-21 2006-11-13 Device for securing a weapon system to a chassis frame of a vehicle
DK06831109.1T DK1960729T3 (en) 2005-11-21 2006-11-13 Device for attaching a weapon system to a motor vehicle frame
EP06831109A EP1960729B1 (en) 2005-11-21 2006-11-13 Device for mounting a weapon system on a vehicle chassis
IL191606A IL191606A (en) 2005-11-21 2008-05-21 Device for mounting a weapon system on a vehicle chassis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0511826 2005-11-21
FR0511826A FR2893710B1 (en) 2005-11-21 2005-11-21 DEVICE FOR FASTENING A WEAPON SYSTEM ON A VEHICLE CHASSIS

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WO2007057550A1 true WO2007057550A1 (en) 2007-05-24
WO2007057550A8 WO2007057550A8 (en) 2008-07-10

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JP (1) JP4901875B2 (en)
AT (1) ATE498814T1 (en)
DE (1) DE602006020171D1 (en)
DK (1) DK1960729T3 (en)
ES (1) ES2361438T3 (en)
FR (1) FR2893710B1 (en)
IL (1) IL191606A (en)
PL (1) PL1960729T3 (en)
WO (1) WO2007057550A1 (en)
ZA (1) ZA200804372B (en)

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FR3044753B1 (en) 2015-12-08 2019-03-22 Nexter Systems DEVICE FOR HANDLING OBUS FOR PIECE OF ARTILLERY
SE541539C2 (en) * 2017-06-30 2019-10-29 Bae Systems Bofors Ab Fastening device for a piece module on a carrier and a weapon system

Citations (5)

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Publication number Priority date Publication date Assignee Title
FR2663727A1 (en) 1990-06-22 1991-12-27 Lohr Ind Composite structure for mortar firing from a motorised vehicle
DE9208524U1 (en) * 1991-08-08 1992-08-27 Titan Spezialfahrzeugbau Gmbh, 7600 Offenburg, De
US5390582A (en) * 1993-05-12 1995-02-21 Sanderson; Paul H. Plank-mounted aircraft armanent apparatus
EP1231129A2 (en) 2001-02-13 2002-08-14 Crossmobil GmbH Truck
US20040216597A1 (en) 2001-08-30 2004-11-04 Michael Kohlstedt Artillery gun with a heavy weapon arranged on a support vehicle

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JPH0365474A (en) * 1989-08-04 1991-03-20 Ee S:Kk Vibration proofing supporter for load carrying platform
JP3862674B2 (en) * 2003-06-13 2006-12-27 株式会社クボタ Ride type transplanter
JP4133903B2 (en) * 2004-03-30 2008-08-13 株式会社日本製鋼所 Ryu cannon mounted on vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663727A1 (en) 1990-06-22 1991-12-27 Lohr Ind Composite structure for mortar firing from a motorised vehicle
DE9208524U1 (en) * 1991-08-08 1992-08-27 Titan Spezialfahrzeugbau Gmbh, 7600 Offenburg, De
US5390582A (en) * 1993-05-12 1995-02-21 Sanderson; Paul H. Plank-mounted aircraft armanent apparatus
EP1231129A2 (en) 2001-02-13 2002-08-14 Crossmobil GmbH Truck
US20040216597A1 (en) 2001-08-30 2004-11-04 Michael Kohlstedt Artillery gun with a heavy weapon arranged on a support vehicle

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IL191606A0 (en) 2008-12-29
PL1960729T3 (en) 2011-07-29
DK1960729T3 (en) 2011-06-06
ATE498814T1 (en) 2011-03-15
FR2893710A1 (en) 2007-05-25
ES2361438T3 (en) 2011-06-17
FR2893710B1 (en) 2010-02-12
JP4901875B2 (en) 2012-03-21
EP1960729A1 (en) 2008-08-27
IL191606A (en) 2011-12-29
ZA200804372B (en) 2010-04-28
DE602006020171D1 (en) 2011-03-31
EP1960729B1 (en) 2011-02-16
WO2007057550A8 (en) 2008-07-10
JP2009516815A (en) 2009-04-23

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