A kind of linkage structure of aircraft windward deferentTechnical field
The invention belongs to technical field of aerospace, relate to a kind of linkage structure for wind channel tube, particularly on a kind of aircraft two ends for being rigidly connected, the middle wind channel tube linkage structure for flexibly connecting.
Background technique
In aircraft punching press cool air connecting pipeline, due to heat exchanger or the particularity becoming AUI, wind channel tube adopts square structure usually, is connected and fixed by flange and finished product, aircraft structure.Part adopts the clip of many valve structures form of band groove.The requirement of these Connecting format to part processing and assembling is higher, and technology difficulty is large, damping compression-resistant ability, and the clip quality weight of many valve structures form of band groove, use in enormous quantities is large on aircraft weight impact, is unfavorable for aircraft loss of weight.
Summary of the invention
(1) goal of the invention: instant invention overcomes the requirement of original structure to damping performance in aircraft flight, propose that a kind of structure is simple, easy for installation, quality is light, damping is compensatory and the pipeline jointing construction of good airproof performance, and certain electrostatic conducting effect can be played.
(2) technological scheme: a kind of linkage structure of aircraft windward deferent, comprises bonding pad 1, flexible heat resistant sebific duct 3, left metal catheter 4, right metal catheter 5 that ring-shaped clip 2, cross section are annular, wherein, original one section is fixedly connected with square pipeline and is set to the identical left metal catheter 4 of two sections of internal-and external diameters respectively, right metal catheter 5, left metal catheter 4, right metal catheter 5 one end adopts flange seal to be fixedly connected with form with becoming annex or aircraft fixed structure piece respectively, the other end is provided with roll wave boss structure, left metal catheter 4, right metal catheter 5 leaves compensate for clearance under ensureing concentric situation when connecting, cross section is that the flexible heat resistant sebific duct 3 of annular is coated on left metal catheter 4, on right metal catheter 5, bonding pad 1 is overlapped on left metal catheter 4, on right metal catheter 5, two ring-shaped clips 2 are fixed on left metal catheter 4, outside roll wave boss on right metal catheter 5, by bonding pad 1, cross section is that the flexible heat resistant sebific duct 3 of annular is fixed on left metal catheter 4, on right metal catheter 5.
(3) advantage that has of the present invention and beneficial effect are:
1. adopt Combination Design, metal catheter and cross section are that the flexible heat resistant sebific duct of annular is connected, and leave compensate for clearance between metal catheter, easy for installation, easily regulate pipeline coaxality, and can play damping compensating action to metal;
2. line connection is the Connecting format that annular roll wave boss and flexible heat resistant sebific duct combine, good airproof performance;
3. cross section is the flexible heat resistant sebific duct of annular, long service life;
4. bonding pad plays electrostatic conducting effect to metal catheter.
Accompanying drawing explanation
Fig. 1 is connection diagram of the present invention, in figure: bonding pad 1, ring-shaped clip 2, cross section are flexible heat resistant sebific duct 3, left metal catheter 4, the right metal catheter 5 of annular;
Fig. 2 is embodiment of the present invention scheme of installation, in figure: left flange plate 6, flange plate 7.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated.
One end of left metal catheter 4 is welded with left flange plate 6, and one end of right metal catheter 5 is welded with right flange plate 7.Left flange plate 6, right flange plate 7 are linked together with becoming annex or aircraft fixed structure piece by bolt.Left metal catheter 4, right metal catheter 5 the other end leave certain compensate for clearance when connecting, cross section is that left metal catheter 4, right metal catheter 5 two ends roll wave boss are pressed on together by the flexible heat resistant sebific duct 3 of annular, bonding pad 1 is overlapped on left metal catheter 4, right metal catheter 5, ring-shaped clip 2 cross section is near circle, two ring-shaped clips 2 are fixed on outside the roll wave boss on left metal catheter 4, right metal catheter 5, are that annular flexible heat resistant sebific duct 3 is fixed on left metal catheter 4, right metal catheter 5 by bonding pad 1, cross section.
Left metal catheter 4, right metal catheter 5 flow through pipeline for high-altitude punching press cool air, cross section be annular flexible heat resistant sebific duct 3 with its on the roll wave boss Placement that arranges ensure that the tightness of conduit.
Due in aircraft flight, left metal catheter 4, right metal catheter 5 pass through for high-altitude punching press cool air, certain percussion is produced to tube wall, in addition the vibrations of aircraft flight generation, the connection of left metal catheter 4, right metal catheter 5 subsection setup plays buffer function by compensate for clearance to the vibrations that aircraft produces.
Bonding pad 1 is overlapped on left metal catheter 4, right metal catheter 5, conducts on aircraft structure by the electrostatic on structural member, adds the electrostatic conducting effect between conduit.