• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The object of the invention relates to an assembly with a hinge pin (84) mounted in a first sleeve (88) inserted into a first branch (86) of a yoke (80) and into a second sleeve ( 88 ') inserted into a second leg (86') of said yoke (80), said assembly comprising a locking device which comprises: - a cylindrical stop (110) which is housed in an extension (102) of the second sleeve (88) ') and which comprises a front face (112) against which can bear a second end (114) of the hinge axis (84), - a bolt (116) capable of occupying a locked state in which it crosses the stop (110) and the extension (102) so as to immobilize the stop (110) in the extension (102) and an unlocked state in which it does not pass through the stop (110) and allows the removal of the stop (110). ) of the extension (102).
    公开号:FR3014970A1
    申请号:FR1362482
    申请日:2013-12-12
    公开日:2015-06-19
    发明作者:Jerome Cassagne；Thomas Deforet
    申请人:Airbus Operations SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to an assembly comprising a hinge pin supported by a yoke and immobilized in a joint. The invention relates to an assembly comprising a hinge pin supported by a yoke and immobilized in a housing. translation by a locking device incorporating a dual anti-rotation system. In the aeronautical field, according to a configuration illustrated in FIG. 1, a motor 10 is connected to a wing 12 of an aircraft by means of a hooking mast 14. The hooking mast 14 is connected to the wing 12 via fasteners 16, 16 ', at the front and rear of the attachment mast. In parallel, the engine 10 is connected to the attachment pylon 14 via fasteners 18, 18 ', at the front and rear of the engine. The connection between the engine 10 and the attachment pylon 14 comprises lateral connecting rods 20 which take up the thrust forces generated by the engine 10, each lateral rod 20 being connected at one end by a fastener 22 to the engine 10 and at a second end by a fastener 22 'to the attachment pylon 14.
    [0002] Some of these fasteners 16, 16 ', 18, 18', 22, 22 'comprise at least one assembly with a hinge pin connecting a yoke and a fitting. An embodiment of an assembly provided at the level of the fastener 18 'connecting the engine 10 and the attachment pylon 14 to the rear of the engine is illustrated in FIG. 2.
    [0003] This assembly comprises a yoke 24 connected to the attachment pylon 14, a fitting 26 connected to the engine and a hinge pin 28 connecting the yoke 24 and the fitting 26. The yoke 24 comprises two branches 30, 30 'each of which they comprise an inner face 301, 301 'and an outer face 30E, 30E', the inner faces 301 and 301 'facing each other. Each branch 30, 30 'comprises a bore 32, 32' in which is inserted a sleeve 34, 34 ', the two sleeves 34, 34' being coaxial and aligned and having equal inside diameters. For the rest, the longitudinal direction corresponds to the direction of the axes of the sleeves 34, 34 '. Each sleeve 34, 34 'comprises an outer shoulder 36, 36' which bears against the inner face 301, 301 'of the branch in which it is inserted, so as to limit the translation movement of said sleeves 34, 34' in accordance with FIG. the longitudinal direction. The fitting 26 comprises a ball bearing 38 with a bore 40 whose diameter is substantially equal to the inside diameter of the sleeves 34, 34 '. The hinge pin 28 comprises a hollow cylindrical body whose outer diameter is substantially equal to the inner diameter of the sleeves 34, 34 'and 20 of the diameter of the bore 40 of the ball bearing 38. To avoid the exit of the hinge axis 28 of the sleeves and disassembly of the fastener, the assembly comprises a locking device for immobilizing the hinge axis in translation in the longitudinal direction. According to a first embodiment illustrated in FIG. 2, the locking device comprises - a screw 42 with a rod 44 housed in the hinge axis 28, a head 46 at a first end of the rod and a threaded portion 48 at a second end of the rod, - a self-locking nut 50 which is screwed on the threaded portion 48 of the screw 42, - a first washer 52 interposed between the head 46 of the screw and the hinge pin 28 whose outer diameter is greater than the outer diameter of the hinge pin, - a second washer 54 interposed between the nut 50 and the hinge pin 28 whose outer diameter is greater than the outside diameter of the hinge pin. articulation, a pin 56 which passes through the nut 50 and the rod 44 of the screw so as to immobilize the nut 50 relative to the screw 42.
    [0004] According to this embodiment, the self-braking nut 50 corresponds to a first anti-rotation system and the pin 56 corresponds to a second antirotatio n system. During assembly, the screw 42 is introduced from a first end of the hinge axis 28 while the nut 50 and the pin 56 are operated from a second end of the hinge axis. Therefore, this first embodiment requires clearance zones on each side of the yoke 24. To overcome this disadvantage and allow an assembly of one side of the yoke, a second embodiment illustrated in FIG. been developed. This embodiment is more particularly adapted for the fasteners 18 20 located at the front of the engine 10. The elements common with the first embodiment are referenced in the same way. According to this second embodiment, the sleeve 34 of the first branch 30 of the yoke 24 comprises at one end an outer shoulder 36 projecting outwardly of the sleeve which bears against the inner face 301 of the first branch 30. and at a second end an inner shoulder 58 projecting towards the inside of the sleeve which provides the stop function against which a first end of the hinge axis 28 bears to limit its translational movements in the longitudinal direction according to the longitudinal direction. a first direction referenced by the arrow 60 in Figure 3. The sleeve 34 'of the second leg 30' of the yoke 24 comprises at a first end an outer shoulder 36 'projecting outwardly of the sleeve which bears against the inner face 301 'of the second limb 30' and at a second end an extension 62 which extends beyond the outer face 30E 'of the second limb 30 'and which comprises a threaded bore 64 whose diameter is greater than the inner diameter of the sleeve 34'. According to this second embodiment, a locking device makes it possible to limit the translation movements of the hinge pin 28 in the longitudinal direction along a second direction referenced by the arrow 66 in FIG. 3. The locking device comprises: a first set screw 68 which is screwed into the threaded bore 64, - at least one spring washer 70 interposed between the second end of the hinge pin 28 and the first set screw 68, - a second grub screw 72 that is screwed into the threaded bore 64 and bears against the first set screw 68 opposite the or washer (s) elastic (s) 70, - an elongate element 74 flexible or rigid through the extension 62 and the second set screw 72 so as to immobilize in rotation said second set screw 72 with respect to the extension 62. The elongated element 74 corresponds to a first anti-rotation system and the mounting of the first screw without head 68 between at least one spring washer 70 and a second set screw 72 corresponds to a second anti-rotation system.
    [0005] This second embodiment has the advantage of being able to perform the assembly from one side of the yoke. However, the setting of the set screws 68 and 72 inside the tapped bore 64 is not easy and requires the use of tools. This implementation is all the more difficult as the hinge pins have a reduced diameter. Indeed in this case, it is necessary to exert a relatively large torque given the small diameter of the set screws to compress the washer (s) elastic (s) and get the second anti-rotation system.
    [0006] The present invention aims to overcome the disadvantages of the prior art. For this purpose, the invention relates to an assembly with a hinge pin mounted in a first sleeve inserted into a first branch of a yoke and in a second sleeve inserted into a second branch of said yoke. The hinge axis is immobilized in translation by an inner shoulder of the first sleeve providing the stop function for a first end of said hinge pin and by a locking device providing the stop function for a second end of said hinge pin. 'joint. According to the invention, the assembly is characterized in that the locking device comprises a cylindrical stop which is housed in an extension of the second sleeve and which comprises a front face providing the stop function for the second end of the hinge pin, - a bolt capable of occupying a locked state in which it passes through the stop and the extension so as to immobilize the stop in the extension 20 and an unlocked state in which it does not pass through the stop and allows the withdrawal the stop of the extension. Preferably, the abutment comprises a first cylindrical portion with an outer diameter substantially equal to the inside diameter of the extension and a second cylindrical portion with a diameter smaller than that of the first portion. Advantageously, the lengths of the stop and the extension are adjusted so that when the assembly is mounted, the second portion of the stop is disposed at least partially outside the extension.
    [0007] According to one embodiment, the abutment comprises at least one through conduit for housing a portion of the bolt. Each through conduit of the stop is disposed in a transverse plane. According to one embodiment, the extension comprises at least one pair of orifices configured to receive the bolt, the orifices of each pair being diametrically opposed and arranged in a transverse plane. Advantageously, the extension comprises, at its outer surface, flats which extend around each orifice. According to one embodiment, the bolt comprises a screw, a castle nut and a cotter pin which passes through the screw. The present application also relates to an aircraft comprising an assembly according to the invention for connecting a motorization to a wing. Other features and advantages will become apparent from the following description of the invention, a description given by way of example only, with reference to the accompanying drawings in which: FIG. 1 is a diagrammatic representation of a connection between a motorization and a wing of an aircraft, - Figure 2 is a sectional view of an assembly with a hinge pin illustrating a first embodiment of the prior art, - Figure 3 is a sectional view of an assembly. with a hinge pin which illustrates a second embodiment of the prior art, - Figure 4 is a sectional view of an assembly with a hinge axis which illustrates a first embodiment of the invention, - FIG. 5 is a perspective view of an assembly with a hinge pin which illustrates another embodiment of the invention, being assembled, FIG. 6 is a perspective view of a portion of the invention. assembly shown in Figure 4 in the t mounted.
    [0008] In Figure 4, there is shown an assembly providing the connection between a pylon and a motorization of an aircraft. This assembly comprises a yoke 80 secured to the attachment pylon, a fitting 82 integral with the motorization and a hinge pin 84 connecting the yoke 80 and the fitting 82. Of course, the invention is not limited to this application. It can be used for other fasteners between the wing / mast and the mast / engine. The yoke 80 includes first and second legs 86, 86 'each of which comprises an inner face 861, 861' and an outer face 86E, 86E ', the inner faces 861 and 861' facing each other. The assembly comprises a first sleeve 88 supported by the first leg 86 and a second sleeve 88 'supported by the second leg 86', the first and second sleeves 88, 88 'being coaxial and aligned and having substantially equal inner diameters. For the rest of the description, the longitudinal direction corresponds to the direction of the axes of the sleeves 88, 88 '. A transverse plane is perpendicular to the longitudinal direction. According to one embodiment, the first branch 86 comprises a first through hole 90 which opens at the inner faces 861 and outer 86E of said first branch and in which is inserted the first sleeve 88. In parallel, the second branch 86 ' comprises a second through hole 90 'which opens at the inner faces 861' and outer 86E 'of said second leg 86 and in which is inserted the second sleeve 88'. The first sleeve 88 has an outside diameter substantially greater than the diameter of the first through hole 90 which provides an interference fit. The second sleeve 88 'has an outside diameter substantially greater than the diameter of the second through hole 90' which allows to obtain an interference fit. Thanks to the interference adjustments, the sleeves 88, 88 'are fixed relative to the branches 86, 86'. The fitting 82 comprises a bearing 92 with a cylindrical bearing 94 whose diameter is substantially equal to the inside diameters of the sleeves 88, 88 '.
    [0009] Preferably, the bearing 92 is a ball bearing. The hinge axis 84 comprises a solid or hollow cylindrical body whose outer diameter is substantially equal to the inner diameters of the sleeves 88, 88 'and the diameter of the cylindrical bearing surface 94 of the bearing of the fitting. The first sleeve 88 of the first branch 86 comprises at one end an outer shoulder 96 projecting outwardly of the first sleeve which bears against the inner face 861 of the first branch 86 and at a second end an inner shoulder 98 in protrusion inwardly of the sleeve which provides the stop function against which can abut a first end 100 of the hinge pin 84 when mounted.
    [0010] The second sleeve 88 'of the second branch 86' comprises at one end an outer shoulder 96 'protruding outwardly from the second sleeve which bears against the inner face 861' of the second branch 86 'and at a second end an extension 102 in the form of a hollow cylinder which extends beyond the outer face 86E 'of the second branch 86' and which ends with a circumferential edge 104 disposed in a transverse plane. This extension 102 has an outside diameter slightly smaller than the outside diameter of the remainder of the second sleeve 88 '. The extension 102 comprises an inner diameter substantially equal to or slightly greater than the inside diameter of the remainder of the second sleeve 88 '.
    [0011] The hinge axis 84 is immobilized in translation in the longitudinal direction by virtue of the internal shoulder 98 of the first sleeve 88 which limits the movement of the hinge pin 84 in the sleeves 88, 88 ', according to the direction introduction (referenced 106 in Figure 5), and - a locking device 108 which limits the movement of the hinge pin 84 in the direction of withdrawal of said hinge axis. According to one embodiment of the invention, the locking device 108 comprises: a cylindrical stopper 110 which is housed in the extension 102 and which comprises a front face 112 against which a second end 114 of the d-axis can be supported; articulation 84, a bolt 116 capable of occupying a locked state in which it passes through the abutment 110 and the extension 102 so as to immobilize the abutment 110 in the extension 102 and an unlocked state in which it does not pass through the abutment 110 and the extension 102 and allows the removal of the stop 110 from the extension 102.
    [0012] The bolt 116 comprises two anti-rotation systems. The bolt 116 comprises on the one hand a screw 118 and on the other hand a nut 120. The screw 118 comprises a rod 122 with at one end a head 124 and at a second end a threaded portion 126 (visible in FIG. ) on which the nut 120 is screwed.
    [0013] The distance separating the head 124 and the threaded portion 126 is smaller than the outside diameter of the extension 102. According to one embodiment, the nut 120 is self-braking to obtain a first anti-rotation system. Alternatively, an elastic washer may be interposed between the nut 120 and the extension 102.
    [0014] According to one embodiment, the nut 120 is a castle nut. In addition, the assembly comprises a split pin 128 for immobilizing the nut 120 in rotation relative to the rod 122 of the screw 118. The rod 122 comprises a through conduit 130 which extends along a diameter of the rod in a plane 3014 9 70 10 perpendicular to the axis of the rod 122, whose diameter is equal to the operating clearance close to that of the cotter pin 128. The cotter pin 128 is a second anti-rotation system. The abutment 110 comprises a first cylindrical portion 132 with an outside diameter substantially equal to the inside diameter of the extension 102 and a second cylindrical portion 134 with a diameter smaller than that of the first portion 132. The first portion 132 of the abutment 110 has a length substantially equal to the length of the extension 102 and extends from the front face 112 of the abutment 110. The second portion 134 of the abutment 110 extends from the first portion 132 to the rear face 136 of the stop 110 (visible in Figure 6). The lengths of the abutment 110 and the extension 102 are adjusted so that when the assembly is mounted, the second portion 134 is disposed at least partially outside the extension 102 which facilitates its placement. The abutment 110 comprises at least one through duct 138 whose diameter is substantially equal to the operating clearance close to that of the rod 122 of the screw 118. According to one embodiment, each through duct 138 is disposed in a transverse plane and extends along a diameter of the abutment 110. According to one embodiment, the abutment 110 comprises a single through conduit 138. According to another embodiment illustrated in FIG. 5, the abutment 110 comprises several through-passages 138. 25 extension 102 comprises at least one pair of orifices 140 for housing a portion of the bolt 116. Each orifice 140 has a diameter equal to the operating clearance close to that of the rod 122 of the screw 118.
    [0015] According to an embodiment illustrated in Figure 6, the extension 102 comprises a pair of orifices 140 diametrically opposed and arranged in a transverse plane. According to another embodiment illustrated in FIG. 5, the extension 102 comprises several pairs of orifices 140 arranged in a transverse plane, the orifices 140 of each pair being diametrically opposed. Preferably, the extension 102 comprises at its outer surface, flats 142 which extend around each orifice 140. These flats 142 form surfaces substantially flat and perpendicular to the rod 122 of the screw 118 against which support the head 124 and the nut 120 of the bolt 116. To achieve the assembly, the sleeves 88, 88 'are inserted into the branches 86, 86' of the yoke 80 from the inside of the branches. Following, the fitting 82 is inserted between the branches 86, 86 'until the axis of the bearing 92 of the fitting 82 is aligned with the axes of the sleeves 88, 88'. The hinge axis 84 is introduced into the sleeves 88, 88 'and the bearing 92 from a first side of the yoke 80, until it bears against the inner shoulder 98 of the first sleeve 88. following, the stop 110 is inserted in the extension 102. Two orifices 140 of the extension are aligned with a through conduit 138 of the abutment 110. The rod 122 of the screw 118 is introduced into the orifices 140 and the through conduit 138. The Crimped nut 120 is screwed onto the threaded portion 126 of the rod 122 until the head 124 of the screw 118 and the nut 120 bear against the outer surface of the extension 102. The split pin 128 is implementation so as to immobilize in rotation the crenel nut 120 relative to the rod 122 of the screw 118. The end of at least one branch of the cotter pin 128 is bent to prevent said cotter pin 128 from sort of the conduit through 130 of the rod 122 of the screw.
    [0016] The advantages of the assembly according to the invention are as follows: this assembly makes it possible to introduce the hinge pin and to block it in translation from one side of the yoke. Thus, it is possible to arrange the yokes engine fasteners / attachment pylon so as to allow the introduction from one side of the nacelle in the case of a nacelle configuration with low ground clearance, - this assembly simplifies the installation of the locking device with a double anti-rotation system and limit the use of tools, - this assembly requires no modification on the yoke or the fitting.
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. Assembly with a hinge pin (84) mounted in a first sleeve (88) inserted into a first leg (86) of a yoke (80) and into a second sleeve (88 ') inserted into a second leg (86' ) of said yoke (80), said first sleeve (88) having an inwardly projecting inner shoulder (98) of said first sleeve (88) providing abutment function for a first end (100) of said hinge pin (84), said assembly comprising a locking device (108) providing the stop function for a second end (114) of said hinge pin (84), the assembly being characterized in that the locking device (108) comprises - a cylindrical stop (110) which is housed in an extension (102) of the second sleeve (88 ') and which comprises a front face (112) providing the stop function for the second end (114) of the axis d articulation (84), - a bolt (116) capable of occupying a locked state in which it passes through the stop (110) and the extension (102) so as to immobilize the stop (110) in the extension (102) and an unlocked state in which it does not pass through the stop (110) and allows the removal of the stop (110) of the extension (102).
    [0002]
    2. An assembly according to claim 1, characterized in that the stop (110) comprises a first portion (132) cylindrical with an outer diameter substantially equal to the inner diameter of the extension (102) and a second portion (134) cylindrical with a diameter less than that of the first portion (132).
    [0003]
    3. An assembly according to claim 2, characterized in that the lengths of the abutment (110) and the extension (102) are adjusted so that when the assembly is mounted, the second portion (134) of the abutment ( 110) is disposed at least partially outside the extension (102).
    [0004]
    4. Assembly according to one of the preceding claims, characterized in that the stop (110) comprises at least one conduit (138) passing through to accommodate a portion of the bolt (116).
    [0005]
    5. Assembly according to the preceding claim, characterized in that each duct (138) therethrough is disposed in a transverse plane.
    [0006]
    6. Assembly according to one of the preceding claims, characterized in that the extension (102) comprises at least one pair of orifices (140) configured to receive the bolt (116), the orifices (140) of each pair being diametrically opposed and arranged in a transverse plane.
    [0007]
    7. An assembly according to claim 6, characterized in that the extension (102) comprises, at its outer surface, flats (142) which extend around each orifice (140).
    [0008]
    8. Assembly according to one of the preceding claims, characterized in that the bolt (116) comprises a screw (118), a nut (120) crenellated and a cotter pin (128) passing through the screw (118).
    [0009]
    9. Aircraft comprising an assembly according to one of the preceding claims for connecting a motorization to a wing.20.
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    法律状态:
    2015-12-21| PLFP| Fee payment|Year of fee payment: 3 |
    2016-12-22| PLFP| Fee payment|Year of fee payment: 4 |
    2017-12-21| PLFP| Fee payment|Year of fee payment: 5 |
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    FR1362482A|FR3014970B1|2013-12-12|2013-12-12|ASSEMBLY COMPRISING A JOINT AXLE SUPPORTED BY A CAP AND IMMOBILIZED IN TRANSLATION BY A LOCKING DEVICE INCORPORATING A DOUBLE ANTI-ROTATION SYSTEM|FR1362482A| FR3014970B1|2013-12-12|2013-12-12|ASSEMBLY COMPRISING A JOINT AXLE SUPPORTED BY A CAP AND IMMOBILIZED IN TRANSLATION BY A LOCKING DEVICE INCORPORATING A DOUBLE ANTI-ROTATION SYSTEM|
    US14/553,342| US9592917B2|2013-12-12|2014-11-25|Assembly comprising an articulation spindle supported by a clevis and immobilized in translation by a blocking device integrating a double anti-rotation system|
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