EP2620738B1 - Ansteuerungsteil fur Munition - Google Patents

Ansteuerungsteil fur Munition Download PDF

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Publication number
EP2620738B1
EP2620738B1 EP13152424.1A EP13152424A EP2620738B1 EP 2620738 B1 EP2620738 B1 EP 2620738B1 EP 13152424 A EP13152424 A EP 13152424A EP 2620738 B1 EP2620738 B1 EP 2620738B1
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EP
European Patent Office
Prior art keywords
locking
pyrotechnic
piston
diameter
axis
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.)
Not-in-force
Application number
EP13152424.1A
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English (en)
French (fr)
Other versions
EP2620738A1 (de
Inventor
Patrick Cohe
Bertrand Dubois
Fabien Moreau
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.)
TDA Armements SAS
Original Assignee
TDA Armements SAS
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Filing date
Publication date
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Publication of EP2620738A1 publication Critical patent/EP2620738A1/de
Application granted granted Critical
Publication of EP2620738B1 publication Critical patent/EP2620738B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/60—Steering arrangements
    • F42B10/62—Steering by movement of flight surfaces
    • F42B10/64—Steering by movement of flight surfaces of fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel
    • F42B10/18—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel using a longitudinally slidable support member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel
    • F42B10/20—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel deployed by combustion gas pressure, or by pneumatic or hydraulic forces

Definitions

  • the invention relates to missiles and guided munitions equipped with a driving section such as guided artillery ammunition and including guided rockets.
  • a driving section is known from EP 0 354 088 .
  • guided munitions can be equipped with a pilot section with guide vanes commonly called ducks or control surfaces.
  • the munition guided during its flight to a target is controlled by an electronic guide / control of the ammunition servoing the position of the control surfaces via a motorization type electric, pneumatic or pyrotechnic.
  • the guided munitions are fired from a launch tube such as, a rocket launcher, a barrel or a mortar tube.
  • the launching of the guided munition has at least two main phases, a firing phase producing its ejection of the launching tube followed by an external ballistic phase after its exit from the launch tube to go towards a target.
  • the guiding / driving section of the guided munition comprises a control system control surfaces that must be contained in the launch tube during the firing phase.
  • the control surfaces are in a retracted position in the launch tube to deploy during the outer ballistic phase, that is to say after the exit of the ammunition launch tube.
  • the deployment of the control surfaces of the guided munition is of umbrella type opening either in the direction of launch of the munition against the aerodynamic wind produced by the speed of the ammunition or in the opposite direction of launch of the ammunition
  • control system of the control surfaces ensures, firstly, their restraint in their retracted position allowing the introduction of the ammunition in the launch tube and, secondly, their deployment after the exit of the tube
  • the deployment of the control surfaces can be achieved either by a mechanism operating automatically as soon as the munition is ejected, that is to say, as soon as the pilot section is out of the launch tube without the need for a specific order of deployment sent by the control electronics of the control surfaces, or by another mechanism deploying the control surfaces that when receiving one or more orders transmitted by the control electronics to the control surface control system at a desired moment of the trajectory phase or external ballistic phase of the munition.
  • the control system of the control surfaces must be able to be configured so that, when the ammunition of the launch tube is released, the electronics, with a single command sent by the control electronics simultaneously authorize the unlocking of the control restraint system and their deployment.
  • a first order sent by the guidance / control electronics to the control system of the control surfaces will allow their unlocking, a second order following the first trigger their deployment.
  • control surface control system must also have a speed of execution compatible with the most swift ammunition, withstand shotgun type environments, it must be able to be integrated in small ammunition and be reversible for opening tests. of the governes.
  • the locking barrel comprises in a central portion between its two ends an inner wall in a plane perpendicular to the axis AA 'having a circular passage axis coinciding with the axis AA' to form between the free edge of the barrel of locking a circular section of cell having a movable portion of the locking device.
  • the movable portion of the locking device comprises between the free edge and the inner wall of the locking barrel a return spring compressed by a locking piston having a first piston surface of diameter D6 that can slide in the cell the locking barrel, the first piston surface being connected by a frustoconical intermediate surface to a second piston surface of diameter D7 smaller than the diameter D6 of the first surface of the locking piston,
  • the translation locking device comprises locking holes in the circular wall of the locking barrel regularly distributed about the axis AA 'in a plane perpendicular to said axis AA', locking balls inserted in the locking holes of diameter greater than the thickness of the circular wall of the locking barrel, a groove on the side of the inner surface of the mobile sheath, in a so-called locked position of the locking mechanism, the locking balls inserted into the holes locking of the circular wall of the locking barrel in contact with the first piston surface of diameter D6 are partially inserted into the groove of the mobile sheath blocking in translation the mobile sheath on the fixed sheath.
  • the coil spring in the so-called locked position of the locking mechanism, is compressed between the flange of the movable sleeve and the latch wall of the latch support, the coil spring being relaxed upon deactivation of the latching device. bringing the free end of the mobile sheath closer to the fixed sheath.
  • the coil spring in the so-called locked position of the locking mechanism, is compressed between the flange of the mobile sheath and the fixing ring of the fixed sleeve, the coil spring, while relaxing during the deactivation of the locking device. , moving the free end of the mobile sheath away from the fixed sheath.
  • the locking piston of the movable part comprises, on the side of the circular passage of the inner wall of the locking barrel, an application surface of the unlocking force F for compressing the return spring and placing, in a first unlocking phase of the locking mechanism, the second diameter surface D7 of the locking piston facing the locking balls which, by withdrawing from the groove of the inner surface of the mobile sheath, allow the translation of the mobile sheath on the locking barrel by the releasing the helical spring release, in a final unlocking phase, releasing the n control surfaces and allowing their passage from the folded position to the deployed position.
  • the locking barrel comprises another cell between the inner wall of the locking barrel and the fastening ring integral with the latch support, the other cavity opening through the fastening ring containing a device for generating the force. Unlocking F secured to the steering section body.
  • the device for generating the unlocking force F is a pyrotechnic device.
  • the pyrotechnic device comprises, a pyrotechnic tube of circular section that can slide in the other cell, the pyrotechnic tube being closed, on the side of the inner wall of the locking barrel, by a pyrotechnic tube wall comprising a circular opening of diameter D9 and, on the other side of the pyrotechnic tube by another closing wall of circular section of diameter D10 greater than the diameter D8 of the pyrotechnic tube.
  • the other closure wall of the pyrotechnic device is extended by a cylindrical body of diameter D12 smaller than the diameter of the other closure wall to create a crown-shaped bearing surface for a ring clamping threaded on its periphery having a passage in its axis of revolution for the passage, to through said clamping ring, the cylindrical body of the pyrotechnic device.
  • the pyrotechnic tube comprises, between the pyrotechnic tube wall having the circular opening and the other closure wall, a pyrotechnic piston that can slide sealingly in the pyrotechnic tube, the pyrotechnic piston being reduced in diameter to passing through the circular opening of the pyrotechnic tube wall, an igniter and a pyrotechnic charge forming with the pyrotechnic piston a pyrotechnic chamber, a toroidal seal surrounding the pyrotechnic piston sealing the pyrotechnic chamber.
  • the pyrotechnic piston is in contact, by the application surface of the unlocking force F, with the locking piston in the locking barrel of the fixed sleeve so that said locking piston in the cell does not not in direct contact with the inner wall of the locking barrel, a direct contact pressure between the locking piston in the cell and the pyrotechnic piston of the pyrotechnic device being exerted by the return spring compressed between the closing ring integral with the free end of the locking barrel and the locking piston in the cell.
  • the device for generating the unlocking force F is an electromagnetic device such as an electromagnet.
  • the device for generating the unlocking force F is a pneumatic device.
  • the invention also relates to a tool for resetting the locking of the locking mechanism of the driving section, when the coil spring between the flange of the movable sleeve and the latch wall of the latch support is expanded and the flange of the movable sleeve is in abutment.
  • the locking mechanism comprising a series of axis parallel to the axis XX 'holes through the fixing ring of the fixed sheath distributed regularly around the axis AA 'and opening at the height of the flange of the movable sheath, characterized in that it comprises a handle having cylindrical rods secured to the handle distributed on said handle so that a rod passes in a respective hole of the fixing ring, a pressure exerted on the handle transmitted by the rods on the flange compressing the helical locking spring to perform the rearming of the locking device.
  • the invention also relates to a tool for resetting the locking of the locking mechanism of the driving section, when the coil spring is compressed between the collar of the mobile sheath and the fixing ring of the fixed sheath, the collar of the mobile sheath comprising a series of threaded holes of axes parallel to the axis XX 'regularly distributed around the axis AA', characterized in that it comprises a handle having cylindrical rods integral with one of its ends of said handle, the other free ends rods being threaded to be screwed onto the threaded holes of the collar of the movable sheath and make them integral with the handle, a traction force being exerted on the handle to bring, during rearming, the mobile sheath towards the fixing ring in compressing the coil spring to reset the locking device.
  • the driving section according to the invention advantageously meets the requirements thanks to a robust and compact mechanism, equipped with an exchangeable pyrotechnic device.
  • the new driving section according to the invention provides an improvement in robustness and compaction with respect to the control devices of the state of the art.
  • the figure 1a represents a partial view of a driving section of a guided munition comprising a control locking mechanism, according to the invention.
  • the figure 1b represents a partial front view of the driving section of the figure 1 at.
  • a locking mechanism 60 maintains the four control surfaces in the folded position in the control body 50 during the firing phase. The deactivation of the locking mechanism 60 frees the four control surfaces which can then be put in their deployed position.
  • the four control surfaces in this realization of the figure 1a , are of the same rectangular shape with small sides c1, c1 'opposite and long sides c2, c2' opposite. In the folded position of the control surfaces, at least the long sides c2, c2 'are parallel to the axis XX'.
  • the four control surfaces can pivot, on the side of one of their small side c1 farthest from the locking mechanism 60, around a respective rotary shaft 54 of axis VV 'perpendicular to a plane passing through the longitudinal axis XX .
  • the figure 1a shows the two control surfaces G1, G3 in a plane P1 passing through the longitudinal axis XX '.
  • the small ribs c1, c1 'opposite of the four control surfaces G1, G2, G3, G4 comprise, as represented on the figure 1b , on the side of the locking mechanism 60, respective notches e1, e2, e3, e4 distributed around a circle Ce of notches whose center is on the longitudinal axis XX 'for locking by the locking mechanism 60 of the four control surfaces in the folded position in the steering body.
  • the figure 2 shows a detailed view of the locking mechanism of the control surfaces of the control section of the figure 1a including a pyrotechnic device.
  • the locking mechanism 60 comprises a latch support 62 in the form of a tube of circular section integral with the control body 50, axis of revolution AA 'coincides with the longitudinal axis XX', a fixed sheath 64 integral with the latch support 62 also of cylindrical shape with an axis of revolution AA 'coincides with the longitudinal axis XX', a movable sheath 66 slidable on the fixed sheath, a locking device in translation maintaining in longitudinal position the sheath mobile on the fixed sheath, a coil spring 150 for unlocking around the sheath mobile 66 to slide the movable sheath on the fixed sheath when disabling the locking device.
  • the latch support 62 has a circular cylindrical inner support surface 68 of diameter D1.
  • the latch support 62 widens in diameter, at its end farthest from the control surfaces, in the form of a lock support ring 74 having threaded holes 76 distributed regularly around the axis AA '.
  • the latch support 62 is closed at its other end by a latch wall 80 having in the axis AA 'a circular latch opening 82 of diameter D2 less than the diameter D1.
  • the latch wall 80 forms, on the side of the internal support surface 68 of the latch support 62, a bearing surface 86 in the form of a ring in a plane perpendicular to the axis AA '.
  • the fixed sheath 64 has two opposite ends in the axis AA '.
  • One of the ends of the fixed sheath has a fixing ring 100 on the lock support ring 74 in a plane perpendicular to the axis AA 'having attachment holes 102 facing the threaded holes 76 of the lock support ring 74 for the fixing screw passage 104 of the fixed sheath 64 on the latch support 62.
  • the fixed sheath 64 is extended, inside the latch support 62, by a tube-shaped locking barrel 110 passing through the circular latch opening 82 of the latch support 62, of axis of revolution coinciding with the latch 62.
  • the locking of the four control surfaces is carried out by the movable sleeve 66 of the locking mechanism 60.
  • the movable sheath 66 is in the form of a tube of circular section of external diameter D4 surrounding the locking barrel 110 and able to slide longitudinally along the axis AA ' by its inner surface 122 on the outer surface 123 of the locking barrel 110 and by its outer surface 124 of diameter D4 in the latch opening 82 of the latch wall 80 of the latch support 62.
  • the movable sheath 66 comprises, on the side of the lock opening 82 outside the fixed sheath 64, a free end 130 inserted into the notches e1, e2, e3, e4 of the four control surfaces to hold them in their seat. folded position in the control body 50 and another end 132 opposite the free end 130 of the mobile sheath inside the latch support 62 having a collar 140 of diameter D5 greater than the diameter D4 of the outer surface 124 of the sheath mobile 66, said flange 140 facing the bearing surface 86 of the latch support 62 and slidable on the inner support surface 68 of the latch support 62.
  • the locking mechanism 60 of the control surfaces is deactivated by an unlocking force F acting on the locking device in translation of the mobile sheath 66 to allow its translation by sliding on the locking barrel 110 and the unlocking of the four control surfaces which can then pass from their folded position to their deployed position.
  • the unlocking coil spring 150 in the locked position of the mechanism, is compressed between the bearing surface 86 in the form of a ring and the collar 140 facing the latch wall 80 of the latch support 62. The decompression of the coil spring disengages the free end 130 of the mobile sheath 66 notches e1, e2, e3, e4 releasing the four control surfaces.
  • the locking barrel 110 comprises, in a central part between its two ends, an inner wall 160 in a plane perpendicular to the axis AA 'having a circular passage 164 of axis of revolution coinciding with the axis AA' to form between the end of the locking barrel 110 on the free end 130 side of the mobile sheath 66 and said inner wall 164 a circular section honeycomb 170 comprising a movable portion of the translation locking device intended to be actuated by the unlocking force F .
  • Said mobile part in the cell 170 comprises, on the side of the free edge 172 of the locking barrel closed by a closure ring 202 integral with said free edge 172, a bearing washer 173 and a return spring 174 compressed by a piston of locking 176 on the closure ring 202.
  • the locking piston 176 has a first circular cylindrical surface 180 of diameter D6 slidable inside the locking barrel 110, the first surface 180 being connected by an intermediate surface 182 of frustoconical shape. to a second surface 184 of diameter D7 smaller than the diameter D6 of the first external surface 180 of the locking piston,
  • the translation locking device comprises locking holes 190 in the circular wall of the locking barrel 110 regularly distributed about the axis AA 'and, in a plane perpendicular to said axis AA', locking balls 194 inserted into the locking holes 190, the balls being of diameter greater than the thickness of the circular wall of the locking barrel 110 so as to partially exceed the outer surface of the locking barrel 110 to fit in a groove 200 of circular section in the wall of the mobile sheath 66.
  • the cell 170 of the fixed sleeve 110 opens through the circular passage 164 to another cell 210 of circular cylindrical shape with a diameter D8 of axis of revolution coincides with the axis AA 'opening through the fixing ring 100 of the fixed sheath 64
  • This other cell 210 contains, in this embodiment, a pyrotechnic device 220 for generating the unlocking force F on the locking piston 176 of the locking mechanism.
  • the pyrotechnic device 220 comprises, a pyrotechnic tube 222 of circular section that can slide in the other cell 210.
  • the pyrotechnic tube is closed, on the side of the inner wall 160 of the locking barrel 110, by a pyrotechnic tube wall 224 comprising a circular opening 226 of diameter D9 and, on the other side of the pyrotechnic tube 222 by another closing wall 230 of circular section of diameter D10 greater than the diameter D8 of the pyrotechnic tube.
  • the other closure wall 230 is extended by a cylindrical body 231 of diameter D12 smaller than the diameter of the other closure wall 230 to create a bearing surface 232 in the form of a ring for a clamping ring 234.
  • the clamping ring 234 is threaded on its periphery and has a passage 235 in its axis for the passage of the cylindrical body 231 of the pyrotechnic device 220.
  • the pyrotechnic tube 222 comprises, between the pyrotechnic tube wall 224 comprising the circular opening 226 and the other closure wall 230, a pyrotechnic piston 240 that can slide in a sealed manner in the pyrotechnic tube 222, the pyrotechnic piston 240 being reduced to diameter to pass through the circular opening 226 of the pyrotechnic tube wall, an igniter 250 and a pyrotechnic charge 252 forming with the pyrotechnic piston 240 a pyrotechnic chamber 260.
  • the other cell 210 of circular cylindrical shape of diameter D8 opens through the fixing ring 100 of the fixed sheath 64 by a ring-shaped recess 270 of circular section with a diameter greater than the diameter of the closure wall 230 of the pyrotechnic tube creating a shoulder of crown 272.
  • the closing wall 230 of the pyrotechnic tube abuts the crown shoulder 272.
  • the screwing of the clamping ring 234 threaded on the internal thread of the recess of crown 270 ensures a blocking of the pyrotechnic device in the other cell 210 of the locking gun 110.
  • the figure 3 shows the locking mechanism of the figure 2 in locked position
  • the figure 3 shows the pyrotechnic device 220 locked in the other cell 210 of the locking barrel 110 of the locking mechanism by the clamping ring 234 screwed into the threaded recess of the fixing ring 100.
  • Electrical contacts 280 passing through the cylindrical body 231 provide electrical activation of the igniter 250 of the pyrotechnic device by an external device for triggering the unlocking (not shown in the figures).
  • the external device can also control, when the control surfaces are released, their deployment at a chosen moment of the flight of the guided munition.
  • the deployment of the four control surfaces can also be realized automatically when they are released.
  • the electrical activation of the igniter 250 and the pyrotechnic charge 252 produce, by the gas pressure released in the pyrotechnic chamber 260, the movement of the pyrotechnic piston 240 towards the outside of the pyrotechnic chamber and the generation by said pyrotechnic piston an unlocking force F on the application surface 113 of the unlocking force of the locking piston 176.
  • the locking mechanism shown in figure 3 , is in the locking position of the four control surfaces G1, G2, G3, G4 in their folded position in the control body 50.
  • the pyrotechnic device 220 is inserted and held in position in the other cell 210 of the locking gun 110, by the clamping ring 234 screwed into the threaded recess 270 of the fixing ring 100.
  • the pyrotechnic piston 240 is in direct contact with the locking piston 176 in the locking barrel 110 of the fixed sheath 64 of so that said locking piston 176 in the cell 170 is not in direct contact with the inner wall 160 of the locking barrel 110, a direct contact pressure between the locking piston 176 in the cell 170 and the pyrotechnic piston 240 the pyrotechnic device being exerted by the return spring 174 compressed between the closure ring 202 integral with the free end 172 of the locking barrel and the piston of the lock screen 176 in the cell 170.
  • the figure 4 shows the locking mechanism of the figure 2 in a first unlocking phase.
  • Activation of the igniter 250 and the pyrotechnic charge 252 produces a gas pressure in the pyrotechnic chamber 260 and an unlocking force F exerted by the pyrotechnic piston 240 on the locking piston 176 which moves towards the free edge 172 of the locking barrel 110 by compressing the return spring 174.
  • the second surface 184 of the locking piston 176 moved by the thrust of the pyrotechnic piston 240 is opposite the locking balls 194.
  • the figure 5 shows the locking mechanism of the figure 2 in a second unlocking phase.
  • the locking balls 194 guided by the locking holes 190 can, in this second phase, be positioned on the second surface 184 of the smaller diameter locking piston 176 D7 then disengaging from the groove 200 of the mobile sheath which is then released.
  • the coil spring 150 as it depresses moves the movable sleeve (66) inwardly of the lock bracket 62.
  • the figure 6 shows the last unlocking phase of the locking mechanism of the figure 2 .
  • the movement of the movable sheath 66 continues towards the interior of the latch support 62 until it comes to a stop by its flange 140 on an internal shoulder 245 of the fixing ring 100 inside the latch support 62 as represented to the figure 6 .
  • the free end 130 of the mobile sleeve 66 is disengaged from the notches e1, e2, e3, e4 of the four control surfaces which are then released in rotation about their axis 54.
  • the return spring 174 is compressed by the locking piston 176 itself pushed by the pyrotechnic piston 240 in the locking barrel 110.
  • the locking piston 176 is, in this last phase, locked in displacement in the cell 170 by the locking balls maintained between the inner surface 122 of the movable sheath 66 and the surfaces, frustoconical intermediate 182 and second surface 184 of diameter D7 of the locking piston 176.
  • control surfaces being released can then rotate around their shaft 54 to move into the deployed position.
  • the figure 7 shows the locking device of the figure 2 in the unlocked position and the control surfaces being deployed.
  • An electronic control system of the steering section system not shown in the figures ensures the initiation of the exciter of the pyrotechnic pyrotechnic exchangeable via its two power pins 280.
  • the figure 8 shows the dismantling of the pyrotechnic device of the locking mechanism of the figure 2 .
  • the pyrotechnic device is interchangeable and therefore independent of the locking system, which allows its removal or replacement at any time. Once used for triggering the locking mechanism, simply unscrew the clamping ring 234 of the fixing ring 100 to extract the pyrotechnic device used from the other cell 210 of the locking barrel 110 and possibly replace it with a new one. .
  • the invention also relates to a device for resetting the locking of the locking mechanism of the driving section according to the invention.
  • the figure 9 shows a device for resetting the locking mechanism of the steering section of the figure 2 .
  • the locking mechanism comprises a series of holes 300 of axes parallel to the axis XX 'passing through the fixing ring 100 of the fixed sheath 64 distributed regularly around the axis AA' and opening at height of the flange 140 of the mobile sheath 66 and a resetting tool 310.
  • the resetting tool 310 essentially comprises a handle 320 having cylindrical rods 322 integral with the handle 320 distributed on the handle so that a rod can pass into one of the holes facing in the fixing ring 100.
  • control surfaces are brought back or put in the folded position.
  • the figure 9 shows a first phase of rearming the locking mechanism of the figure 2 .
  • the rods 322 passing through the holes 300 of the fixing ring of the fixed sheath bear against the flange 140 of the mobile sheath 66 compressing the helical spring 150 around the mobile sheath 66 and sliding the movable sheath 66 onto the locking barrel 110 fixed sheath 64.
  • the figure 10 shows the last phase of rearming of the locking mechanism of the steering section of the figure 2 .
  • the figures 11 and 12 show a variant of the locking mechanism of the driving section according to the invention.
  • the figure 11 shows the unlocking device in the locked position and the figure 12 in unlocked position.
  • the unlocking of the control surfaces is achieved by a displacement of the movable sleeve 66 in the opposite direction to that of the displacement of the movable sleeve of the figure 1a .
  • the helical spring 150 is compressed between the flange 140 of the mobile sheath and the fixing ring 100 of the fixed sheath 64.
  • the coil spring 150 being released relaxes by pushing the movable sheath 66 towards the outside of the latch support 62.
  • the free end 130 of the movable sheath 66 cooperates with the four control surfaces by an intermediate mechanism, not shown in the figures, to release them.
  • the flange 140 of the movable sleeve comprises a series of threaded holes 400 of axes parallel to the axis XX 'distributed regularly around the axis AA' and opening at the height of the collar of the movable sleeve 66 and a reset tool.
  • the reset tool essentially comprises a handle having cylindrical rods integral with one end of the handle, the other free ends of the rods being threaded to screw on the threaded holes of the collar of the mobile sheath.
  • control surfaces are brought back or put in the folded position, then a sufficient traction force is exerted on the handle to bring the movable sheath 66 back to the fixing ring by compressing the coil spring 150 until the locking ball 194 returns.
  • a sufficient traction force is exerted on the handle to bring the movable sheath 66 back to the fixing ring by compressing the coil spring 150 until the locking ball 194 returns. in the groove 200 of the wall of the mobile sheath, as in the case of the production of figures 9 and 10 for compressing the coil spring 150 and sliding the movable sleeve 66 on the locking barrel 110 of the fixed sleeve 64 to the locking position of the locking device.
  • the invention is not limiting to a given number of rudders and can be used in steering sections having n control surfaces G1, G2,..., Gn, where g is the index of the rudder, n being greater than 1.
  • the device generating the unlocking force F can be obtained by different devices and is not limited to a pyrotechnic device, for example the unlocking force F can be generated by an electromagnetic device, pneumatic device or any other device which leads to generating a force applied to the locking piston 176 of the locking barrel.
  • control surfaces locking device which is of revolution and reduced dimensions, is advantageously very compact.
  • the locking device allows, when in the locked position, to withstand the strong acceleration phase during the gun.
  • the locking piston in the cell of the locking barrel bears against the pyrotechnic piston if the acceleration is of the "cannon" type, said locking piston 176 in addition to pressing on the pyrotechnic piston can come in double support on the inner wall 160 of the locking barrel 110 of the fixed sheath 64.
  • the locking device of the driving section according to the invention is robust, fast and has an instantaneous type of operation thanks to the use of an exchangeable pyrotechnic device but also thanks to the helical release spring which has a stored energy requiring only to relax.
  • the locking device is reversible thanks to the frustoconical intermediate surface of the locking piston in the locking barrel which, under the action of the return spring, tends to reposition the locking balls in the groove of the mobile sheath when the latter it is opposite blocking balls
  • the locking device is adaptable to all umbrella type opening systems.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lock And Its Accessories (AREA)

Claims (18)

  1. Ansteuerungsteil für Lenkmunition, das einen Ansteuerungskörper (50) mit einer gemäß einer Längsachse XX' zylindrischen Außenfläche (52), n Luftruder G1, G2,...Gi,...Gn um die Längsachse XX', die entweder in einer in den Ansteuerungskörper (50) gefalteten oder in einer entfalteten Position sein können, die über die Außenfläche (52) des Ansteuerungskörpers hinausragt, umfasst, wobei n eine ganze Zahl größer als 1 ist, um die Lenkung der Munition durchzuführen,
    dadurch gekennzeichnet, dass es einen Verriegelungsmechanismus (60) der n Luftruder in der in den Ansteuerungskörper (50) gefalteten Position aufweist, wobei der Verriegelungsmechanismus hat:
    - einen rohrförmigen Riegelhalter (62), der auf einer Seite mit dem Ansteuerungskörper (50) verbunden ist mit einer Rotationsachse AA', die mit der Längsachse XX' zusammenfällt, der an seinem Ende in der Nähe der n Luftruder mit einer Riegelwand (80) verschlossen ist, die in der Achse AA' eine Riegelöffnung (82) mit einem Durchmesser D2 aufweist, der kleiner ist als der Durchmesser D1 der zylindrischen Innenfläche (68) des Riegelhalters, um im Riegelhalter eine kranzförmige Abstützfläche (86) zu bilden,
    - eine starre zylindrische Manschette (64) mit der Rotationsachse AA', die mit der Längsachse XX' zusammenfällt, die einen Befestigungskranz (100) in einer zur Achse AA' lotrechten Ebene aufweist, der mit dem Riegelhalter (62) auf der Seite verbunden ist, die der Riegelwand (80) gegenüberliegt, wobei ein Verriegelungslauf (110) in Form eines Rohrs mit einem kreisförmigen Querschnitt mit dem Außendurchmesser D3 durch die Riegelöffnung (82) läuft und einen freien Rand (172) außerhalb des Riegelhalters (62) hat,
    - eine bewegliche Manschette (66) in Form eines Rohrs mit einem kreisförmigen Querschnitt mit einem Außendurchmesser D4, die die starre Manschette (64) umgibt und längs gemäß der Achse AA' mit ihrer Innenfläche (122) auf der Außenfläche (123) des Verriegelungslaufs (110) gleitfähig ist, wobei die bewegliche Manschette (66) auf der Seite der Riegelöffnung (82) außerhalb der starren Manschette (64) ein freies Ende (130) aufweist, das mit den n Luftrudern G1, G2, ...Gi,...Gn zusammenarbeitet, um sie in ihrer in den Ansteuerungskörper (50) gefalteten Position zu halten und ein anderes Ende, das dem freien Ende (130) im Riegelhalter (62) gegenüberliegt, das einen Kragen (140) mit dem Durchmesser D5, der größer als der Außendurchmesser D4 der beweglichen Manschette (66) ist, aufweist,
    - eine gemäß der Achse AA' der beweglichen Manschette (66) auf dem Verriegelungslauf (110) verschiebbare Verriegelungsvorrichtung (174, 176, 194, 200), die durch eine Entriegelungskraft F deaktivierbar ist, um eine Verschiebung durch Gleiten der beweglichen Manschette (66) auf dem Verriegelungslauf (110) und die Freigabe der n Luftruder auszulösen, die aus ihrer gefalteten Position in ihre entfaltete Position wechseln können,
    - eine Entriegelungs-Spiralfeder (150) um die bewegliche Manschette (66), um bei der Deaktivierung der Verriegelungsvorrichtung das Gleiten der beweglichen Manschette auf der starren Manschette (64) zu veranlassen.
  2. Ansteuerungsteil nach Anspruch 1, dadurch gekennzeichnet, dass der Verriegelungslauf (110) in einem zentralen Teil zwischen seinen beiden Enden eine Innenwand (160) in einer Ebene lotrecht zur Achse AA' mit einem kreisförmigen Achsendurchgang (164), der mit der Achse AA' zusammenfällt, aufweist, um zwischen dem Ende des Verriegelungslaufs (110) und der Innenwand (160) eine Hülse (170) mit kreisförmigem Querschnitt zu bilden, die einen beweglichen Teil (174, 176, 194) der Verriegelungsvorrichtung aufweist.
  3. Ansteuerungsteil nach Anspruch 2, dadurch gekennzeichnet, dass der bewegliche Teil (174, 176, 194) der Verriegelungsvorrichtung zwischen dem freien Rand (172) und der Innenwand (160) des Verriegelungslauf (110) eine von einem Verriegelungskolben (176) komprimierte Rückstellfeder (174) aufweist, der eine erste Kolbenfläche (180) mit einem Durchmesser D6 hat, die in der Hülse (170) des Verriegelungslaufs (110) gleiten kann, wobei die erste Kolbenfläche (180) anhand einer kegelstumpfförmigen Zwischenfläche (182) mit einer zweiten Kolbenfläche (184) mit einem Durchmesser D7, der kleiner als der Durchmesser D6 der ersten Fläche (180) des Verriegelungskolbens ist, verbunden ist.
  4. Ansteuerungsteil nach Anspruch 3, dadurch gekennzeichnet, dass die verschiebbare Verriegelungsvorrichtung Blockierlöcher (190) in der kreisförmigen Wand des Verriegelungslaufs (110), die gleichmäßig um die Achse AA' in einer Ebene lotrecht zur Achse AA' verteilt sind, in die Blockierlöcher (190) eingesetzte Blockierkugeln (194) mit einem größeren Durchmesser als die Dicke der kreisförmigen Wand des Verriegelungslaufs (110), eine Nut (200) auf der Seite der Innenfläche der beweglichen Manschette (66) in einer verriegelten Position des Verriegelungsmechanismus aufweist, wobei die Blockierkugeln (194), die in die Blockierlöcher (190) der kreisförmigen Wand des Verriegelungslauf (110) im Kontakt mit der ersten Fläche (180) des Kolbens mit dem Durchmesser D6 teilweise in die Nut (200) der bewegliche Manschette eingesetzt sind, die Verschiebung der beweglichen Manschette (66) auf der starren Manschette (64) blockieren.
  5. Ansteuerungsteil nach Anspruch 4, dadurch gekennzeichnet, dass die Spiralfeder (150) zwischen dem Kragen (140) der beweglichen Manschette (66) und der Riegelwand (80) des Riegelhalters (62) in der verriegelten Position des Verriegelungsmechanismus komprimiert ist, wobei sich die Spiralfeder bei der Deaktivierung der Verriegelungsvorrichtung entspannt, bei der sich das freie Ende (130) der beweglichen Manschette (66) an die starre Manschette (64) annähert.
  6. Ansteuerungsteil nach Anspruch 4, dadurch gekennzeichnet, dass die Spiralfeder (150) zwischen dem Kragen (140) der beweglichen Manschette (66) und dem Befestigungskranz (100) der starren Manschette (64) in der verriegelten Position des Verriegelungsmechanismus komprimiert ist, wobei die Spiralfeder, indem sie sich bei der Deaktivierung der Verriegelungsvorrichtung entspannt, das freie Ende (130) der beweglichen Manschette (66) von der starren Manschette (64) entfernt.
  7. Ansteuerungsteil nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass der Verriegelungskolben (176) des beweglichen Teils auf der Seite des kreisförmigen Durchgangs (164) der Innenwand (160) des Verriegelungslaufs (110) eine Applikationsfläche (113) der Entriegelungskraft F aufweist, um die Rückstellfeder (174) zu komprimieren und in einer ersten Entriegelungsphase des Verriegelungsmechanismus die zweite Durchmesserfläche (184) D7 des Verriegelungskolbens gegenüber den Blockierkugeln (194) zu platzieren, die, indem sie sich in die Nut (200) der Innenfläche der beweglichen Manschette (66) zurückziehen, die Verschiebung der beweglichen Manschette (66) auf dem Verriegelungslauf (110) durch Entspannung der Entriegelungs-Spiralfeder (150) gestatten und in einer letzten Verriegelungsphase die n Luftruder freigeben und ihren Wechsel aus der gefalteten in die entfaltete Position ermöglichen.
  8. Ansteuerungsteil nach Anspruch 2, dadurch gekennzeichnet, dass der Verriegelungslauf eine andere Hülse (210) zwischen der Innenwand (160) des Verriegelungslaufs und dem Befestigungskranz (100) aufweist, die mit dem Riegelhalter (62) verbunden ist, wobei die andere Hülse (210), die durch den Befestigungskranz (100) ausmündet, eine Vorrichtung zur Erzeugung der Entriegelungskraft F enthält, die mit dem Ansteuerungsteil verbunden ist.
  9. Ansteuerungsteil nach Anspruch 8, dadurch gekennzeichnet, dass die Vorrichtung zur Erzeugung der Entriegelungskraft F ein Feuerwerkskörper (220) ist.
  10. Ansteuerungsteil nach Anspruch 9, dadurch gekennzeichnet, dass der Feuerwerkskörper (220) ein pyrotechnisches Rohr (222) mit kreisförmigem Querschnitt aufweist, das in der anderen Hülse (210) gleiten kann, wobei das pyrotechnische Rohr auf der Seite der Innenwand (160) des Verriegelungslaufs (110) von einer pyrotechnischen Rohrwand (224), die eine kreisförmige Öffnung (226) mit dem Durchmesser D9 aufweist, und auf der anderen Seite des pyrotechnischen Rohrs (222) von einer anderen Verschlusswand (230) mit kreisförmigem Querschnitt mit einem Durchmesser D10, der größer ist als der Durchmesser D8 des pyrotechnischen Rohrs, verschlossen ist.
  11. Ansteuerungsteil nach Anspruch 10, dadurch gekennzeichnet, dass sich die andere Verschlusswand (230) des Feuerwerkskörpers anhand eines zylindrischen Körpers (231) mit einem Durchmesser D 12 verlängert, der kleiner ist als der Durchmesser der anderen Verschlusswand (230), um eine kranzförmige Abstützfläche (232) für einen Spannring (234) zu bilden, der auf seinem Umfang ein Gewinde und einen Durchgang (235) in seiner Rotationsachse für den Durchgang des zylindrischen Körpers (231) des Feuerwerkskörpers (220) durch den Spannring umfasst.
  12. Ansteuerungsteil nach Anspruch 11, dadurch gekennzeichnet, dass das pyrotechnische Rohr (222) zwischen der pyrotechnischen Rohrwand (224), die eine kreisförmige Öffnung (226) aufweist, und der anderen Verschlusswand (230) einen pyrotechnischen Kolben (240) aufweist, der dicht in dem pyrotechnischen Rohr (222) gleiten kann, wobei sich der Durchmesser des pyrotechnischen Kolbens (240) reduziert, um durch die kreisförmige Öffnung (226) der pyrotechnischen Rohrwand zu passen, wobei ein Zünder (250) und eine pyrotechnische Ladung (252) mit dem pyrotechnischen Kolben (240) eine pyrotechnische Kammer (260) bilden, wobei eine torische Dichtung (264), die den pyrotechnischen Kolben (240) umgibt, die Dichtigkeit der pyrotechnische Kammer (260) sicherstellt.
  13. Ansteuerungsteil nach Anspruch 12, dadurch gekennzeichnet, dass der pyrotechnische Kolben (240) anhand der Applikationsfläche (113) der Entriegelungskraft F mit dem Verriegelungskolben (176) im Verriegelungslauf (110) der starren Manschette (64) derart im Kontakt ist, dass der Verriegelungskolben (176) in der Hülse (170) nicht im direkten Kontakt mit der Innenwand (160) des Verriegelungslaufs (110) ist, wobei eine direkte Kontaktkraft zwischen dem Verriegelungskolben (176) in der Hülse (170) und dem pyrotechnischen Kolben (240) des Feuerwerkskörpers von der Rückstellfeder (174) ausgeübt wird, die zwischen dem Verschlussring (202), der mit den freien Ende (172) des Verriegelungslaufs verbunden ist, und dem Verriegelungskolben (176) in der Hülse (170) komprimiert ist.
  14. Ansteuerungsteil nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung zum Erzeugen der Entriegelungskraft F eine elektromagnetische Vorrichtung wie ein Elektromagnet ist.
  15. Ansteuerungsteil nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung zum Erzeugen der Entriegelungskraft F eine pneumatische Vorrichtung ist.
  16. Werkzeug zum Rückstellen der Verriegelung des Verriegelungsmechanismus des Ansteuerungsteils nach Anspruch 5, wenn die Spiralfeder (150) zwischen dem Kragen (140) der beweglichen Manschette (66) und der Riegelwand (80) des Riegelhalters (62) entspannt ist und der Kragen der beweglichen Manschette auf einem internen Absatz des Befestigungskranzes (100) der starren Manschette (64) anschlägt, wobei der Verriegelungsmechanismus eine Reihe von Löchern (300) mit parallelen Achsen zur Achse XX' aufweist, die den Befestigungskranz (100) der starren Manschette (64) durchqueren und gleichmäßig um die Achse AA' angeordnet sind und in Höhe des Kragens (140) der beweglichen Manschette (66) ausmünden, dadurch gekennzeichnet, dass es einen Griff (320) mit zylindrischen Stangen (322) umfasst, die mit dem Griff (320) verbunden sind, die auf dem Griff derart verteilt sind, dass eine Stange in einem jeweiligen Loch des Befestigungskranzes (100) steckt, wobei ein auf den Griff ausgeübter, von den Stangen auf den Kragen übertragener Druck die Verriegelungs-Spiralfeder (150) komprimiert, um die Rückstellung der Verriegelungsvorrichtung durchzuführen.
  17. Werkzeug zum Rückstellen der Verriegelung des Verriegelungsmechanismus des Ansteuerungsteils nach Anspruch 6, wenn die Spiralfeder zwischen dem Kragen der beweglichen Manschette und dem Befestigungskranz der starren Manschette entspannt ist, wobei der Kragen (140) der beweglichen Manschette (66) eine Reihe von Gewindelöchern (400) mit parallelen Achsen zur Achse XX' aufweist, die gleichmäßig um die Achse AA' angeordnet sind, dadurch gekennzeichnet, dass es einen Griff mit zylindrischen Stangen umfasst, die mit einem ihrer Enden mit dem Griff verbunden sind, wobei die anderen freien Enden der Stangen ein Gewinde haben, um sich in die Gewindelöcher des Kragens (140) der beweglichen Manschette einzuschrauben und sie mit dem Griff zu verbinden, wobei eine Zugkraft auf den Griff ausgeübt wird, um die bewegliche Manschette (66) beim Rückstellen durch Komprimieren der Spiralfeder (150) in Richtung des Befestigungskranzes (100) zu führen, um die Rückstellung der Verriegelungsvorrichtung durchzuführen.
  18. Lenkmunition, die ein Ansteuerungsteil nach einem der Ansprüche 1 bis 15 aufweist.
EP13152424.1A 2012-01-27 2013-01-23 Ansteuerungsteil fur Munition Not-in-force EP2620738B1 (de)

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FR2986319A1 (fr) 2013-08-02
EP2620738A1 (de) 2013-07-31
US8890043B2 (en) 2014-11-18
FR2986319B1 (fr) 2014-03-14
US20130193265A1 (en) 2013-08-01

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