• 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 present disclosure relates to a device (30) for positioning an inspection tool (130) relative to a housing flange (10) (1). The device (30) includes first (40) and second (70) positioning pieces joined to each other. The first piece (40) comprises a fixing portion (45) adapted to be fixed on the flange (10). The second piece (70) includes a bore (75) defining a reference axis (X) for positioning the inspection tool (130); and a positioning surface (85) adapted to cooperate with a circumferential surface (12) of the flange (10) by positioning the reference axis (X) secantely at an axis of revolution (Z) of the flange (10). ). The first and second parts (40, 70) comprise respective wedging surfaces (50, 80) able to cooperate together by positioning the reference axis (X) perpendicularly to the axis of revolution (Z).
    公开号:FR3018114A1
    申请号:FR1451711
    申请日:2014-03-03
    公开日:2015-09-04
    发明作者:Thomas Drouin；Olivier Pierre Descubes
    申请人:Turbomeca SA；
    IPC主号:
    专利说明:

    [0001] FIELD OF THE INVENTION The present disclosure relates to a device for the positioning of an inspection tool with respect to a crankcase flange, in particular the positioning of an endoscope which makes it possible to evaluate deformations. local on a movable member mounted inside the housing, including the erosion of the blades of a movable turbomachine member, such as the impeller of a centrifugal compressor. STATE OF PRIOR ART In known manner, the erosion of a movable member mounted inside a housing is evaluated using an inspection tool, in particular an endoscope.
    [0002] Such a maintenance inspection is particularly welcome in the case where the movable member is incorporated in a turbomachine, this member then being subjected to high mechanical stress due to the high speed at which this body typically rotates. This observation is even more true when such a turbomachine comprises a centrifugal compressor, as is typically the case in a helicopter engine, the compressor wheel being subjected to strong constraints of centrifugal order, whose impact on the blades of said impeller must be periodically inspected. By way of example of a centrifugal compressor, reference may be made, for example, to the international application WO 2012/160290 A1 filed by the Applicant.
    [0003] Furthermore, in known manner, a housing is divided axially into several sections assembled two by two by flanges incorporated in the ends of said sections. Therefore, to position the inspection tool on the housing, a conventional solution is to remove a portion of the assembly screws of two adjacent flanges, then reassemble these screws with a positioning device adapted to be interposed between these screws. and one of the two flanges. This assembly operation, once completed, allows the device to position the inspection tool opposite an opening of the housing, which is uncorked for the occasion to allow inspection. Thus, according to this conventional solution, the performance of the positioning device 30 depends directly on the stresses imposed by the above-mentioned assembly screws, which can be disadvantageous in many respects.
    [0004] In particular, the step of placing the positioning device on the housing involves steps of disassembly and reassembly of said screws, which can be long and tedious implementation, especially when these screws are difficult to access as it is often the case on turbomachines, which can affect the overall time required to perform the inspection. In addition, the accuracy of the positioning of the inspection tool relative to the opening of the housing is provided by these screws, the assembly clearance is often too large to obtain sufficient accuracy for inspection. There is therefore a need for the development of a more efficient positioning device. PRESENTATION OF THE INVENTION A first aspect of the present disclosure relates to a device for positioning an inspection tool with respect to a housing flange having an axis of revolution, a circumferential surface and two faces perpendicular to the axis of revolution. . This device comprises first and second positioning parts, dissociated from one another; and means for assembling said parts together. The first part comprises a fixing portion adapted to be fixed on one of the two faces of the flange. The second piece includes a bore defining a reference axis for positioning the inspection tool; and a positioning surface adapted to cooperate with the circumferential surface of the flange by positioning the reference axis secantly to the axis of revolution. The first and second parts comprise respective wedging surfaces capable of cooperating together by positioning the reference axis perpendicularly to the axis of revolution. Thus, the first part of the device can be permanently assembled with the housing flange, while the second part of the device can be provided removable and be assembled only temporarily with this flange, via the first part. Therefore, the inspection can be easily performed without dismantling engine parts. In particular, it is not necessary to disassemble and reassemble a portion of the assembly screws of this flange with an adjacent flange of another section of the housing each time it is desired to carry out an inspection. It is sufficient to assemble once and for all the first part with these flanges, then add and remove the second part each time you want to carry out an inspection. Moreover, the precision of the positioning of the reference axis for the inspection tool can be further decorrelated from the set of assemblies of the above-mentioned screws, this accuracy being ensured here by the positioning surface and the respective wedging surfaces, which make it possible to precisely orient the reference axis both perpendicularly and in a secant manner to the axis of revolution of the flange. These surfaces can further ensure a better rigidity of the assembly. The positioning accuracy of the reference axis can thus be increased. In some embodiments, the assembly means may comprise means for clamping the respective wedging surfaces one against the other in the direction of the axis of revolution, which may make it possible to catch any play between these two surfaces in this direction and thus further improve the accuracy of the positioning of the reference axis. In some embodiments, the assembly means may comprise means for clamping the positioning surface and the circumferential surface against each other in the direction of the reference axis, which may allow to make up any play between these two surfaces in this direction and thus further improve the positioning accuracy of the reference axis. In some embodiments, the assembly means may comprise a threaded rod having a threaded portion adapted to be screwed into the second part, and an end adapted to cooperate with a cavity incorporated in the first part to fix the first and second parts. parts to each other. Thus, the first and second parts can be assembled together and disengaged from one another via a displacement of this threaded rod in the second part to initiate and break the cooperation between the end of this part. stem and footprint. In some embodiments, the threaded rod may have a rod axis adapted to be positioned obliquely with respect to the reference axis and the axis of revolution. Thus, the tensile force exerted by the end of the threaded rod on the cavity may simultaneously comprise a first component parallel to the reference axis and another component parallel to the axis of revolution. Therefore, the assembly means may comprise a single threaded rod for assembling together the first and second parts. In some embodiments, said stem axis may be contained in a plane parallel to the plane formed by the reference axis and the axis of revolution. In some embodiments, these two planes may be merged. In some embodiments, the recess and the end of the threaded rod may have respective frustoconical shapes capable of cooperating together to fix the first and second parts to each other. Such frustoconical shapes may in particular make it easier to implement the aforementioned oblique contact. In particular, such shapes can be used to prevent the locking of the second part with respect to the first part out of a specific location provided for optimal positioning of the reference axis. In some embodiments, the first part may have, in the extension of the cavity, a portion for guiding the end of the threaded rod towards the cavity, which may make it easier to initiate cooperation between the end of the rod and the impression during the assembly of the first and second pieces. In some embodiments, the first part may be adapted to be fixed on the flange according to at least two distinct assembly configurations, the passage from one assembly configuration to the other being effected by rotation of 180 °, around of the reference axis, of the first part. Thus, the first part can be fixed both on a opposite flange face to the opening of the housing, as on a flange face opposite this opening, in the direction defined by the axis of revolution. The cost for an inspection requiring an assembly according to each of the two configurations can thus be reduced by such a standardization of the first part. In some embodiments, the first piece may be flat.
    [0005] In some embodiments, the positioning surface may be discontinuous. A second aspect of this disclosure relates to an assembly comprising a housing flange assembled with a device according to the first aforementioned aspect.
    [0006] A third aspect of the present disclosure relates to a turbomachine comprising a movable member rotatably mounted in a housing provided with an assembly according to the second aforementioned aspect. In some embodiments, the turbomachine may comprise a centrifugal compressor and the movable member comprise a spinning wheel incorporated in the centrifugal compressor. The above-mentioned characteristics and advantages, as well as others, will appear better on reading the detailed description which follows, examples of embodiments which are devoid of any limiting character and which are simply offered for illustration purposes. This detailed description refers to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are diagrammatic and are not to scale, they are primarily intended to illustrate the principles mentioned in this disclosure. In these appended drawings: FIG. 1 is an exploded view of a positioning device according to the present disclosure; - Figure 2 is an exploded view of this device according to another angle of view; - Figure 3 is a perspective view illustrating the assembly of the first and second parts of the device; - Figure 4 is a perspective view illustrating the positioning of the inspection tool on the second part, once the latter together with the first part; FIGS. 5A and 5B are cross-sectional views along a plane comprising the axis of revolution of the flange and the reference axis, which represent two distinct positions of a threaded rod screwed into the second part with respect to an impression. incorporated in the first piece; FIG. 5C is an enlarged view of the detail VC shown in FIG. 5A; - Figure 6 is a perspective view of the first part and the threaded rod in an unassembled state; FIGS. 7 and 8 are plane views of the device, respectively along the directions VII and VIII shown in FIG. 4. DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS According to the illustrated example (see in particular FIGS. 1 to 4), a Device according to this example is a device 30 for the positioning of an inspection tool 130 with respect to a housing flange 10 having an axis of revolution Z, a circumferential surface 12 and two faces 14, 16 perpendicular to the axis. The device 30 comprises first 40 and second 70 positioning pieces, dissociated from one another; and assembly means 90,100 of said parts 40,70 with each other. The first piece 40 comprises a fixing portion 45 adapted to be fixed on one of the two faces 14,16 of the flange 10. The second piece 70 comprises a hole 75 defining a reference axis X for the positioning of the tool 130; and a positioning surface 85 capable of cooperating with the circumferential surface 12 of the flange 10 by positioning the reference axis X in a secant manner to the axis of revolution Z. The first and second parts 40, 70 comprise respective surfaces of setting 50, 80 able to cooperate together by positioning the reference axis X perpendicular to the axis of revolution Z. In this example, the casing 1 is an integral part of a turbomachine 30 comprising a movable member (not shown) for which it is desired to inspect the state of wear. For example, the turbomachine may be intended to be incorporated into a helicopter as a motor of the latter, and to include a centrifugal compressor. The movable member may then comprise a rotor rotatably mounted in the centrifugal compressor and having a leading edge whose erosion level requires regular inspection. In this example, the axis of revolution Z of the flange 10 coincides with an axis of revolution of the rotating member. In this example, the first part 40 is designed to be fixed permanently on one of the two faces 14, 16 of the flange 10 incorporated at one end of a section of the casing 1. Thus, in this example, the first part 40 Piece 40 10 is intended to remain permanently on this housing section 1, even during operation of the engine. Furthermore, the flange 10 may, for example, be arranged at an engine air inlet, so as to allow, once the device 30 and the inspection tool 130 have been installed, a level inspection from this air inlet. In addition, in this example, the first piece 40 is provided to be fixed to the flange 10 while the latter is already assembled with another adjacent flange incorporated in another housing section (not shown). According to this example, the attachment portion 45 of the first piece 40 is able to be fixed on the face 16 of the flange 10 by means of one or more screws (in particular two screws, which are visible in FIG. ), able to pass through through holes 42A to 42F in the attachment portion 45 (see Fig. 6). Some of these through holes (referenced 42C and 42D in Figure 6) have a direction transverse to said holes of larger respective dimensions, so as to receive the screw heads or nuts forming the assembly bolts of adjacent flanges , without these bolts interfering with the attachment of the first piece 40 to the flange 10. In addition, other through holes (referenced 42A, 42B, 42E and 42F in Figure 6) have a transverse direction to said holes of smaller respective dimensions, so as to allow the heads of the assembly screws of the first part 40 with the flange 10 to bear on the edge of these holes. Thus, in this example, the first part 40 can be fixed to the flange 10, without disassembly of engine parts. 301 8 1 1 4 8 In this example, the fixing portion 45 comprises a first face adapted to be applied against the face 16 of the flange 10, so that this first face is positioned parallel to the face 16, when the first piece 40 is fixed on this face 16. In addition, in this example, the first piece 40 has a second face 50 (see FIG. 2), which is opposite and parallel to the first face and which defines the surface of in this example, the first part 40 is able to be fixed on the flange 10 according to at least two distinct assembly configurations, the passage from one assembly configuration to the other being carried out by rotating 180 ° around the reference axis X of the first piece 40. In addition, in this example, the first piece 40 is flat. It has a first plane of symmetry intended to be perpendicular to the axis of revolution Z, when the first piece 40 is fixed to the flange 10. Furthermore, in this example, the first piece 40 has a second plane of symmetry, perpendicular to the first plane of symmetry and intended to be parallel to the plane formed by the reference axis X and the axis of revolution Z, when the first piece 40 is fixed on the flange 10 and that the second part 70 is assembled with the first part 40. Furthermore, as illustrated in FIG. 3, the second part 70 is temporarily assembled with the first part 40, then dismounted, each time that it is desired to carry out an inspection. The positioning of the second piece 70 relative to the first piece 40 and to the flange 10 is carried out, in this example, using the positioning surface 85 and the wedging surface 80 of the second piece 70. In this example, the positioning surface 85 is such that it is possible to define a cylinder tangential to said positioning surface 85 in at least two points of this surface, said tangent cylinder having an axis of revolution which intersects the reference axis X. In this example, the flange 10 can be geometrically modeled as a cylinder having an axis of revolution Z. Thus, the positioning surface 85 is such that it can rest on the circumferential surface 12 of the flange 10, at least the two aforementioned points, by positioning the reference axis X secantely to the axis of revolution Z. In addition, in this example, the positioning surface 85 is discontinuous (one could however pr to evoke a continuous surface, without departing from the scope of this presentation). In this example, the positioning surface 85 is made up of a plurality of faces. More specifically, in this example, the positioning surface 85 consists of a pair of faces forming, at a distance from one another, the two branches of a V on which the circumferential surface 12 of the flange 10 is able to rest (see Figures 1 and 7). On the other hand, in this example, the wedging surface 80 of the second part 70 is provided planar, so as to be able to establish plane-to-plane contact with the wedging surface 50 of the first part 40, when these two parts are assembled together. (see Figure 5A). In this example, the plane of the wedging surface 80 is configured to extend perpendicular to the axis of revolution Z of the flange 10, when the first and second pieces 40, 70 are assembled together and the first piece 40 is fixed on the flange 10. In addition, the plane of the wedging surface 80 extends parallel to the reference axis X. Therefore, the respective wedging surfaces 50, 80 are able to cooperate together by positioning the axis X reference perpendicular to the axis of revolution Z, when the first and second parts 40,70 are assembled together and the first part 40 is fixed on the flange 10. In addition, the positioning device 30 comprises means of 90,100 assembly of the first and second parts 40,70 with each other.
    [0007] In this example, the assembly means 90,100 comprise a threaded rod 100 having a threaded portion 102 adapted to be screwed into the second piece 70, and an end 104 adapted to cooperate with a recess 90 incorporated in the first piece 40 to fix the first and second pieces 40,70 to one another (see in particular FIGS. 5A to 5C). In particular, in this example, the second piece 70 has a tapped hole 77, into which is screwed the threaded portion 102 of the threaded rod 100, the end 104 protruding from a first edge of this hole 301 8 1 1 4 10 77 in order to be able to cooperate with the impression 90. Thus, in this example, the displacement by a screwing / unscrewing operation of the threaded rod 100 in the hole 77 varies the length of projection of the end 104. In this example, to make this operation easier, the threaded rod 100 has another end 106, which is opposite the end 104, which protrudes from the opposite edge of the hole 77, and which is threaded so that it can be secured in displacement with a wheel 110 retained by a nut 114. Furthermore, in this example, the threaded rod 100 has a rod axis T adapted to be positioned obliquely with respect to the reference axis X and the axis of revolution Z. More by specifically, in this example, the rod axis T is able to be contained in a plane parallel to the reference axis X and the axis of revolution Z, in particular a plane passing through the reference axis X and by Moreover, in this example, the rod axis T forms an angle B with the reference axis X, which is between 10 ° and 70 °, in particular between 15 ° and 15 °. °. In this example, the imprint 90 has a concave shape. However, without departing from the scope of this disclosure, it would be possible to provide a convex shape, provided only that the end 104 of the threaded rod 100 is able to cooperate with the impression 90 to fix the first and second parts 40, 70. one with the other. In addition, in this example, the recess 90 has an axis of symmetry merged with the rod axis T, when the first and second pieces 40,70 are assembled together. However, it is possible to provide, without departing from the scope of the present disclosure, a form of impression 90 other than that mentioned above, provided only that the end 104 of the threaded rod 100 is able to cooperate with the impression 90 to assemble the first and second pieces 40,70 with each other. In addition, in this example, the recess 90 and the end 104 of the threaded rod 100 have respective frustoconical shapes (truncated cone portions) capable of cooperating together to fix the first and second parts 40, 40, 70. to the other. In this example, each of these two frustoconical shapes has an axis of symmetry merged with the axis of rod T. Moreover, in this example, each of these two frustoconical shapes has a half-angle at the peak between 15 ° and 70 °. °, in particular between 20 ° and 60 °. Thus the additional A of this half angle, which is shown in Figure 5C, is between 110 ° and 165 °, in particular between 120 ° and 160 °. Furthermore, in this example, the truncated cone portion defining the recess 90 has a larger radius R1 and the truncated cone portion defining the end 104 has a larger radius r1 which are each between 3 and 7. mm, with a difference R1-r1 between 0.5 and 2 mm. Similarly, in this example, the truncated cone portion defining the recess 90 has a smaller radius R2 and the truncated cone portion defining the end 104 has a smaller radius r2 which are each between 1 and 5 mm, with a difference R2-r2 of between 0.1 and 1.5 mm. Furthermore, in this example, the first part 40 has, in the extension of the recess 90, a guide portion 95 of the end 104 of the threaded rod 100 towards the recess 90. In this example, this part of guide 95 has a concave shape. However, without departing from the scope of this disclosure, it would be possible to provide a convex shape, provided only that the end 104 of the threaded rod 100 can be guided by this guide portion towards the recess 90. In addition, in this example, the guide portion 95 has an axis of symmetry merged with the rod axis T, when the first and second parts 40,70 are assembled together. Moreover, in this example, the guide portion 95 has a cylindrical shape (cylinder portion) whose radius is equal to the largest radius R2 of the truncated cone portion defining the imprint 90. However, without leaving of the present disclosure, a form of guide portion 95 other than the aforesaid, provided only that the end 104 of the threaded rod 100 can be guided by this guide portion to the recess 90. Furthermore, the respective shapes the impression 90 and / or the guide portion 95 may, advantageously but not necessarily, be optimized to prevent an accumulation of dust particles in these forms, in particular when it is intended to carry out a level inspection. an engine air intake, as mentioned above.
    [0008] On the other hand, in this example (see in particular FIGS. 1, 2, and 5A), the second part 70 generally has a square shape with two wings 73 and 81, the hole 75 defining the X reference axis being formed in a first 73 of these two wings, while the wedging surface 80 and the positioning surface 85 are defined in the second wing 81. More particularly, in this example, the second wing 81 has a first notch extending in a plane perpendicular to the axis of revolution Z. This first notch allows the definition of two inner surfaces 80,82, planar, parallel to each other, facing one another, and perpendicular to the axis of revolution Z, one of these two internal surfaces defining the wedging surface 80. These two internal surfaces make it easier to guide the second piece 70 towards its mounting position, during the assembly of the first and second pi these 40.70. On the other hand, in this example, the positioning surface 85 is defined in a distal end of the second flange 81 (relative to the first flange 73). In this example, the second wing 83 has a second cut, which extends in a plane perpendicular to the plane in which the first cut extends, so as to provide a clearance for the passage of the end 104 of the threaded rod 100. In this example, this second notch is responsible for the discontinuity that the positioning surface 85 presents.
    [0009] We will now explain in more detail the realization of an inspection using the positioning device 30. The first step consists, as explained above, to temporarily assemble the second piece 70 with the first piece 40, which she is already fixed permanently with the flange 10.
    [0010] To do this, as illustrated in FIGS. 3 and 5A, it is first necessary to screw the threaded rod 100 sufficiently with the help of the knob 110 so that the end 104 of this rod is sufficiently projecting to be engaged in the guide portion 95, once the second piece 70 is correctly positioned relative to the first piece 40.
    [0011] Then, it is necessary to unscrew the threaded rod 100 so that the end 104 makes less and less protrusion with respect to the hole 77, after having been guided by the guiding portion 95, to be introduced into the impression 90 and eventually be tightened, because of the tensile force generated by the threaded rod 100 and adapted shapes of the recess 90 and the end 104, against this recess 90, as shown in FIG. 5B. In this configuration, this clamping force comprises a first component in the direction of the reference axis X, which causes the positioning surface 85 and the circumferential surface 12 to be clamped against each other in the direction the reference axis X; and a second component in the direction of the axis of revolution Z, which causes the respective bearing surfaces 50,80 to be clamped against each other in the direction of the axis of revolution Z. Thus, in a positioning device 30 thus configured, the assembly means 90,100 comprise clamping means of the respective wedging surfaces 50,80 against each other in the direction of the axis of revolution Z, as well as clamping means of the positioning surface 85 and the circumferential surface 12 against each other in the direction of the reference axis X. In addition, as illustrated in FIG. 3, once the first and second pieces 40 , 70 are assembled together, the bore 75 defining the reference axis X is correctly positioned opposite an opening 3 of the casing 1, which is uncorked for the occasion to allow inspection.
    [0012] The second step consists, as illustrated in FIG. 4, in positioning the inspection tool 130 by aligning the optical axis of sight of the latter with the reference axis X. To do this, in this example, the inspection tool 130 is mounted in a cylindrical sleeve 140, which itself is mounted on the bore 75. In addition, in this example, the inspection tool 130 comprises an endoscope having an optical axis defining the The axis of view of the inspection tool 130. Once this second step is completed, a third step corresponding to the actual inspection step can be carried out. During this phase, thanks to the positioning device 30, the optical axis is suitably positioned perpendicularly and secant to the axis of revolution of the flange 10, which is also the axis of rotation. revolution of the movable member to inspect. Finally, once this third step is complete, it suffices to dismantle the inspection tool 130, then the second part 70, in a manner that is the opposite of that respectively performed during the second and first steps mentioned above, for finish the inspection. The modes or examples of embodiment described in the present description are given for illustrative and not limiting, a person skilled in the art can easily, in view of this presentation, modify these modes or embodiments, or consider others, all remaining within the scope of the invention. In addition, the various features of these modes or embodiments can be used alone or be combined with each other. When combined, these features may be as described above or differently, the invention not being limited to the specific combinations described herein. In particular, unless otherwise specified, a characteristic described in connection with a mode or example of embodiment may be applied in a similar manner to another embodiment or embodiment.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Device (30) for positioning an inspection tool (130) with respect to a housing flange (10) having an axis of revolution (Z), a circumferential surface (12) and two faces (14). , 16) perpendicular to the axis of revolution (Z), characterized in that: the device (30) comprises first (40) and second (70) positioning pieces, dissociated from one another; and means (90, 100) for joining said pieces (40, 70) to each other; the first piece (40) comprises a fixing portion (45) adapted to be fixed on one of the two faces (14, 16) of the flange (10); the second piece (70) includes a bore (75) defining a reference axis (X) for positioning the inspection tool (130); and a positioning surface (85) adapted to cooperate with the circumferential surface (12) of the flange (10) by positioning the reference axis (X) secantely to the axis of revolution (Z); and the first and second parts (40, 70) comprise respective wedging surfaces (50, 80) able to cooperate together by positioning the reference axis (X) perpendicularly to the axis of revolution (Z).
    [0002]
    2. Device (30) according to claim 1, wherein the connecting means (90,100) comprises clamping means of the respective wedging surfaces (50,80) against each other in the direction of the axis of revolution (Z).
    [0003]
    3. Device (30) according to claim 1 or 2, wherein the connecting means (90,100) comprise means for clamping the positioning surface (85) and the circumferential surface (12) against one another. other in the direction of the reference axis (X). 301 8 1 1 4 16
    [0004]
    4. Device (30) according to any one of claims 1 to 3, wherein the connecting means (90,100) comprises a threaded rod (100) having a threaded portion (102) adapted to be screwed into the second piece ( 70), and an end (104) adapted to cooperate with a recess (90) incorporated in the first piece (40) to fix the first and second pieces (40,70) to each other.
    [0005]
    5. Device (30) according to claim 4, wherein the threaded rod (100) has a rod axis (T) capable of being positioned obliquely with respect to the reference axis (X) and the axis of revolution (Z).
    [0006]
    6. Device (30) according to claim 4 or 5, wherein the recess (90) and the end (104) of the threaded rod (100) have respective frustoconical shapes able to cooperate together to fix the first and second 15 pieces (40,70) to each other.
    [0007]
    7. Device (30) according to any one of claims 4 to 6, wherein the first part (40) has, in the extension of the recess (90), a guide portion (95) of the end ( 104) from the threaded rod (100) to the cavity (90).
    [0008]
    8. Device (30) according to any one of claims 1 to 7, wherein the first piece (40) is adapted to be fixed on the flange (10) in at least two separate assembly configurations, the passage of an assembly configuration at the other being performed by rotating 180 ° about the reference axis (X) of the first part (40).
    [0009]
    9. Device (30) according to any one of claims 1 to 8, wherein the first part (40) is flat. 30
    [0010]
    The device (30) according to any one of claims 1 to 9, wherein the positioning surface (85) is discontinuous.
    类似技术:
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    同族专利:
    公开号 | 公开日
    KR20160128413A|2016-11-07|
    FR3018114B1|2016-03-25|
    US20170074120A1|2017-03-16|
    CA2941435A1|2015-09-11|
    WO2015132505A1|2015-09-11|
    JP2017516069A|2017-06-15|
    CN106232947A|2016-12-14|
    EP3114325A1|2017-01-11|
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    AT384108B|1983-06-08|1987-10-12|Avl Verbrennungskraft Messtech|DEVICE FOR DETECTING THE PROCESSES IN THE COMBUSTION ROOM OF AN INTERNAL COMBUSTION ENGINE IN OPERATION|
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    IL130799A|1999-07-05|2003-10-31|Israel Aircraft Ind Ltd|Adapter for use in exhaust gas temperature measurement of a jet engine|
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    US7458768B2|2005-06-28|2008-12-02|United Technologies Corporation|Borescope inspection port device for gas turbine engine and gas turbine engine using same|
    FR2975733B1|2011-05-23|2015-12-18|Turbomeca|CENTRIFUGAL COMPRESSOR WHEEL|KR20170111423A|2016-03-28|2017-10-12|엘지전자 주식회사|Detection device for turbomachine system|
    DE102016206810A1|2016-04-21|2017-10-26|Zf Friedrichshafen Ag|Endoscopic device for automated examination|
    FR3057037B1|2016-10-05|2019-04-26|Airbus Operations|REFERENCE PIN|
    法律状态:
    2015-03-16| PLFP| Fee payment|Year of fee payment: 2 |
    2016-03-02| PLFP| Fee payment|Year of fee payment: 3 |
    2017-02-10| PLFP| Fee payment|Year of fee payment: 4 |
    2017-09-01| CD| Change of name or company name|Owner name: SAFRAN HELICOPTER ENGINES, FR Effective date: 20170727 |
    2018-02-20| PLFP| Fee payment|Year of fee payment: 5 |
    2020-02-20| PLFP| Fee payment|Year of fee payment: 7 |
    2021-02-19| PLFP| Fee payment|Year of fee payment: 8 |
    2022-02-18| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1451711A|FR3018114B1|2014-03-03|2014-03-03|DEVICE FOR POSITIONING AN INSPECTION TOOL|FR1451711A| FR3018114B1|2014-03-03|2014-03-03|DEVICE FOR POSITIONING AN INSPECTION TOOL|
    KR1020167027505A| KR20160128413A|2014-03-03|2015-02-26|Device for positioning an inspection tool|
    CN201580021425.3A| CN106232947A|2014-03-03|2015-02-26|Device for localization examination instrument|
    CA2941435A| CA2941435A1|2014-03-03|2015-02-26|Device for positioning an inspection tool|
    EP15715332.1A| EP3114325A1|2014-03-03|2015-02-26|Device for positioning an inspection tool|
    PCT/FR2015/050456| WO2015132505A1|2014-03-03|2015-02-26|Device for positioning an inspection tool|
    US15/123,414| US20170074120A1|2014-03-03|2015-02-26|Device for positioning an inspection tool|
    JP2016555558A| JP2017516069A|2014-03-03|2015-02-26|Device for positioning an inspection tool|
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