CN203757192U - Riveted structure of pipe joint and wing rib plate in wing tank pressure oil-filling pipeline - Google Patents
Riveted structure of pipe joint and wing rib plate in wing tank pressure oil-filling pipeline Download PDFInfo
- Publication number
- CN203757192U CN203757192U CN201420134216.2U CN201420134216U CN203757192U CN 203757192 U CN203757192 U CN 203757192U CN 201420134216 U CN201420134216 U CN 201420134216U CN 203757192 U CN203757192 U CN 203757192U
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- adpting flange
- wing
- annular boss
- cylinder
- mounting hole
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Abstract
The utility model belongs to aircraft wing tank design technologies and relates to improvement on a riveted structure of a pipe joint and a wing rib plates in a wing tank pressure oil-filling pipeline. The riveted structure of the pipe joint and the wing rib plate and in the wing tank pressure oil-filling pipeline is characterized in that a position of a connection flange 1b, which is close to a cylinder 1, is provided with a connection flange annular boss 1d; the connection flange annular boss 1d is inserted into a left end opening of an installing hole 2a; the difference between the inner diameter of the installing hole 2a and the outer diameter of the connection flange annular boss 1d is not more than 0.5 mm. According to the riveted structure of the pipe joint and the wing rib plate in the wing tank pressure oil-filling pipeline, the coaxiality of the cylinder 1 and the installing hole 2a is ensured, the connection deviation of the pipe joint and a left oil pipe 4 and a right oil pipe 6 is eliminated, the stress after installation is reduced, damage to the wing tank rib plate is avoided, and the flight safety is ensured.
Description
Technical field
The utility model belongs to aircraft wing tank design technology, relates to the improvement to pipe joint in wing tank pressure filling pipeline and wing floor riveted structure.
Background technique
At present, in aircraft wing tank pressure filling pipeline pipe joint and wing floor riveted structure referring to Fig. 1 and Fig. 2.Pipe joint in wing tank pressure filling pipeline is riveted on wing floor 2, and this pipe joint is a cylinder 1, and at the left end of cylinder 1, with the conical surface annular boss 1a being connected with left clip 3, the left port of cylinder 1 is communicated with left oil pipe 4 by left clip 3.At the right-hand member of cylinder 1, with the conical surface annular boss 1a being connected with right clip 5, the right output port of cylinder 1 is communicated with right oil pipe 6 by right clip 5.Have at the external cylindrical surface middle part of cylinder 1 one with cylinder 1 coaxial, the adpting flange 1b of ring, on adpting flange 1b, 8 the adpting flange riveted holes 1c that are uniformly distributed along the circumference of the position of close circumference.On the wing floor 2 of fixed tube joint, there is a mounting hole 2a, the aperture of this mounting hole 2a is greater than the external diameter of conical surface annular boss 1a and is less than the external diameter of adpting flange 1b, the left end of cylinder 1 inserts this mounting hole 2a from left to right, by rivet, adpting flange 1b is riveted on wing floor 2.Its shortcoming is: the coaxality that is difficult to ensure cylinder 1 and mounting hole 2a.In order to allow conical surface annular boss 1a through the mounting hole 2a on wing floor 2, must make the diameter of mounting hole 2a be greater than the external diameter of conical surface annular boss 1a, cause the external diameter of cylinder 1 much smaller than the diameter of mounting hole 2a.When riveted joint, need to drill the wing floor riveted holes 2b on wing floor 2 according to the location site of adpting flange riveted holes 1c, and then rivet.In the small space of wing, the coaxality of cylinder 1 and mounting hole 2a only can be determined by range estimation, operator are difficult to eliminate the positional error of setting-out and boring procedure, the mounting hole 2a disalignment that has caused the rear pipe joint of riveted joint and wing floor 2, makes pipe joint and being connected of left oil pipe 4 and right oil pipe 6 have relatively large deviation, need to could dock and fix with larger installing force, and after installing, stress is very large, easily damage wing tank floor, cause fuel leakage, affect flight safety.In addition, the riveted joint time is long, inefficiency.
Summary of the invention
The purpose of this utility model is: propose pipe joint and wing floor riveted structure in a kind of improved wing tank pressure filling pipeline, to ensure the coaxality of cylinder 1 and mounting hole 2a, avoid riveting the mounting hole 2a disalignment error of rear pipe joint and wing floor 2, eliminate the deviation that is connected of pipe joint and left oil pipe 4 and right oil pipe 6, reduce the stress after installing, avoid damaging wing tank floor, ensure flight safety.In addition, shorten the riveted joint time, increase work efficiency.
The technical solution of the utility model is: pipe joint and wing floor riveted structure in wing tank pressure filling pipeline, this pipe joint is a cylinder 1, at the two ends of cylinder 1 respectively with a conical surface annular boss 1a for jointing clip, the external diameter of conical surface annular boss 1a is greater than the external diameter of cylinder 1, have at the external cylindrical surface middle part of cylinder 1 one coaxial with cylinder 1, the adpting flange 1b of ring, the external diameter of adpting flange 1b is greater than the external diameter of conical surface annular boss 1a, on adpting flange 1b, near the position of circumference 8 the adpting flange riveted holes 1c that are uniformly distributed along the circumference, on the wing floor 2 of fixed tube joint, there is a mounting hole 2a, the aperture of this mounting hole 2a is greater than the external diameter of conical surface annular boss 1a and is less than the external diameter of adpting flange 1b, the left end of cylinder 1 inserts this mounting hole 2a from left to right, there is the wing floor riveted holes 2b that quantity is identical and position is corresponding of quantity and adpting flange riveted holes 1c in the outside of this mounting hole 2a, by rivet, adpting flange 1b is riveted on wing floor 2, it is characterized in that: on adpting flange 1b, have an adpting flange annular boss 1d near the position of cylinder 1, adpting flange annular boss 1d inserts in the left port of mounting hole 2a, the external diameter of adpting flange annular boss 1d is less than the internal diameter of this mounting hole 2a, the difference of the external diameter of the internal diameter of this mounting hole 2a and adpting flange annular boss 1d is not more than 0.5mm, the axial thickness of adpting flange annular boss 1d is not more than the thickness of wing floor 2, and adpting flange annular boss 1d and cylinder 1 are coaxial.
The utility model has the advantages that: proposed pipe joint and wing floor riveted structure in a kind of improved wing tank pressure filling pipeline, ensure the coaxality of cylinder 1 and mounting hole 2a, avoid the mounting hole 2a disalignment error of the rear pipe joint of riveted joint and wing floor 2, eliminate the be connected deviation of pipe joint with left oil pipe 4 and right oil pipe 6, reduce the stress after installing, avoid damage wing tank floor, ensured flight safety.
Brief description of the drawings
Fig. 1 is pipe joint and wing floor riveted structure schematic diagram in aircraft wing tank pressure filling pipeline.
Fig. 2 is the partial enlarged drawing of Fig. 1, has omitted left clip 3, left oil pipe 4, right clip 5 and right oil pipe 6 in figure.
Fig. 3 is structural representation of the present utility model.
Embodiment
Below the utility model is described in further details.Referring to Fig. 3, pipe joint and wing floor riveted structure in wing tank pressure filling pipeline, this pipe joint is a cylinder 1, at the two ends of cylinder 1 respectively with a conical surface annular boss 1a for jointing clip, the external diameter of conical surface annular boss 1a is greater than the external diameter of cylinder 1, have at the external cylindrical surface middle part of cylinder 1 one coaxial with cylinder 1, the adpting flange 1b of ring, the external diameter of adpting flange 1b is greater than the external diameter of conical surface annular boss 1a, on adpting flange 1b, near the position of circumference 8 the adpting flange riveted holes 1c that are uniformly distributed along the circumference, on the wing floor 2 of fixed tube joint, there is a mounting hole 2a, the aperture of this mounting hole 2a is greater than the external diameter of conical surface annular boss 1a and is less than the external diameter of adpting flange 1b, the left end of cylinder 1 inserts this mounting hole 2a from left to right, there is the wing floor riveted holes 2b that quantity is identical and position is corresponding of quantity and adpting flange riveted holes 1c in the outside of this mounting hole 2a, by rivet, adpting flange 1b is riveted on wing floor 2, it is characterized in that: on adpting flange 1b, have an adpting flange annular boss 1d near the position of cylinder 1, adpting flange annular boss 1d inserts in the left port of mounting hole 2a, the external diameter of adpting flange annular boss 1d is less than the internal diameter of this mounting hole 2a, the difference of the external diameter of the internal diameter of this mounting hole 2a and adpting flange annular boss 1d is not more than 0.5mm, the axial thickness of adpting flange annular boss 1d is not more than the thickness of wing floor 2, and adpting flange annular boss 1d and cylinder 1 are coaxial.
Working principle of the present utility model is: because adpting flange annular boss 1d inserts in the left port of mounting hole 2a, ensure that adpting flange 1b accurately locates in mounting hole 2a, and then ensured the coaxality of cylinder 1 and mounting hole 2a, make operator can ensure the mounting hole 2a coaxality of pipe joint and wing floor 2 after riveted joint.Meanwhile, greatly shorten the riveted joint time, improved working efficiency.
Embodiment
Pipe joint and wing floor riveted structure in certain type wing tank pressure filling pipeline, the external diameter of this pipe joint cylinder 1 is 40mm, the external diameter of the conical surface annular boss 1a at cylinder 1 two ends is 49.5mm, the external diameter of the adpting flange 1b at cylinder 1 middle part is 69mm, on adpting flange 1b, there are 8 adpting flange riveted holes 1c that are uniformly distributed along the circumference, on wing floor 2, the aperture of mounting hole 2a is 50mm, the external diameter of the upper adpting flange annular boss 1d of adpting flange 1b is 49.7mm, than the little 0.3mm in the aperture of mounting hole 2a, the thickness of wing floor 2 is 5mm, the thickness of adpting flange annular boss 1d is 1mm.When installing in the past with wing floor riveted structure, this pipe joint often did over again owing to docking difficulty, need to add work to part, average 4 hours used times just can install, adopt after the utility model, installation time shortens greatly, average 15 minutes used times, installation efficiency has improved more than 20 times than existing riveted structure.
Claims (1)
1. pipe joint and wing floor riveted structure in wing tank pressure filling pipeline, this pipe joint is a cylinder (1), at the two ends of cylinder (1) respectively with a conical surface annular boss (1a) for jointing clip, the external diameter of conical surface annular boss (1a) is greater than the external diameter of cylinder (1), have at the external cylindrical surface middle part of cylinder (1) one coaxial with cylinder (1), the adpting flange (1b) of ring, the external diameter of adpting flange (1b) is greater than the external diameter of conical surface annular boss (1a), on adpting flange (1b), near the position of circumference 8 the adpting flange riveted holes (1c) that are uniformly distributed along the circumference, on the wing floor (2) of fixed tube joint, there is a mounting hole (2a), the aperture of this mounting hole (2a) is greater than the external diameter of conical surface annular boss (1a) and is less than the external diameter of adpting flange (1b), the left end of cylinder (1) inserts this mounting hole (2a) from left to right, there is the wing floor riveted holes (2b) that quantity is identical and position is corresponding of quantity and adpting flange riveted holes (1c) in the outside of this mounting hole (2a), by rivet, adpting flange (1b) is riveted on wing floor (2), it is characterized in that: on adpting flange (1b), there is an adpting flange annular boss (1d) position near cylinder (1), adpting flange annular boss (1d) inserts in the left port of mounting hole (2a), the external diameter of adpting flange annular boss (1d) is less than the internal diameter of this mounting hole (2a), the difference of the external diameter of the internal diameter of this mounting hole (2a) and adpting flange annular boss (1d) is not more than 0.5mm, the axial thickness of adpting flange annular boss (1d) is not more than the thickness of wing floor (2), adpting flange annular boss (1d) and cylinder (1) are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134216.2U CN203757192U (en) | 2014-03-24 | 2014-03-24 | Riveted structure of pipe joint and wing rib plate in wing tank pressure oil-filling pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134216.2U CN203757192U (en) | 2014-03-24 | 2014-03-24 | Riveted structure of pipe joint and wing rib plate in wing tank pressure oil-filling pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757192U true CN203757192U (en) | 2014-08-06 |
Family
ID=51252468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420134216.2U Expired - Fee Related CN203757192U (en) | 2014-03-24 | 2014-03-24 | Riveted structure of pipe joint and wing rib plate in wing tank pressure oil-filling pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757192U (en) |
-
2014
- 2014-03-24 CN CN201420134216.2U patent/CN203757192U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170324 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |