CN206647184U - For filling the cover plate in engine by-pass air duct gap - Google Patents
For filling the cover plate in engine by-pass air duct gap Download PDFInfo
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- CN206647184U CN206647184U CN201720356967.2U CN201720356967U CN206647184U CN 206647184 U CN206647184 U CN 206647184U CN 201720356967 U CN201720356967 U CN 201720356967U CN 206647184 U CN206647184 U CN 206647184U
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- cover plate
- air duct
- pass air
- engine
- gap
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Abstract
It the utility model is related to engine duct structure-design technique field, specifically provide a kind of cover plate for being used to fill engine by-pass air duct gap, cover plate is arranged on engine by-pass air duct sound and served as a contrast between Middle casing support plate, cover plate is fixed on Middle casing, leaf hole, the outer wall fitting contact of the wall and Middle casing support plate in leaf hole are provided with the center of cover plate；The outer rim bottom of cover plate and the inner edge bottom in leaf hole are raised in the bottom surface of cover plate, and the bottom surface of cover plate is provided with multiple reinforcements, and reinforcement is connected with the outer rim inwall of cover plate and the inner edge outer wall in leaf hole respectively, to strengthen the structural soundness of cover plate；The bottom of cover plate is provided with multiple mounting seats, mounting seat is raised in the bottom surface of cover plate, the bottom surface of mounting seat is respectively positioned on same plane and is respectively positioned on the lowest part of cover plate, and the bottom surface of mounting seat is in contact with Middle casing, avoid cover plate outer rim and casing localized contact, it is therefore prevented that stress is concentrated and cracked.
Description
Technical field
Engine duct structure-design technique field is the utility model is related to, is more particularly to used to fill engine by-pass air duct
The cover plate in gap.
Background technology
Certain interval is had between the outer culvert sound lining and Middle casing support plate of large-bypass-ratio engine, cover plate is generally used in the gap
To fill, cover plate outer surface after inner surface mounting seat is bonded with casing, is consolidated as by-pass air duct flowpath face by bolt and casing
It is fixed.
Cover plate materials are generally metal, therefore the quality of cover plate is larger, can not meet engine loss of weight needs；Cover plate stream
Surface roughness it is more difficult control and toughness it is bad；And cover plate can not use overall structure, the number of parts of engine is added.
Utility model content
To overcome at least one defect existing for above-mentioned prior art, the utility model provides one kind and started for filling
The cover plate in machine by-pass air duct gap, the cover plate are arranged on engine by-pass air duct sound and served as a contrast between Middle casing support plate, and cover plate is fixed
On Middle casing；
Leaf hole, the outer wall fitting contact of the wall and Middle casing support plate in leaf hole are provided with the center of cover plate；
The outer rim bottom of cover plate and the inner edge bottom in leaf hole are raised in the bottom surface of cover plate, and the bottom surface of cover plate is provided with more
Individual reinforcement, reinforcement are connected with the outer rim inwall of cover plate and the inner edge outer wall in leaf hole respectively；
The bottom of cover plate is provided with multiple mounting seats, and mounting seat is raised in the bottom surface of cover plate, and the bottom surface of mounting seat is respectively positioned on together
One plane and the lowest part for being respectively positioned on cover plate, and the bottom surface of mounting seat is in contact with Middle casing.
Preferably, reinforcement is in X-type or V-type.
Preferably, bolt hole is provided with the mounting seat of cover plate, cover plate is mutually fixed by bolt and the by-pass air duct.
Preferably, cover plate is formed in one structure, and is made using glass fibre reinforced polyetherimide.
Preferably, cover plate is provided with fit-up gap at the blade tip in leaf hole, and the inwall in fit-up gap from leaf hole extends to
The outer wall of cover plate.
Preferably, the quantity of mounting seat is six.
The utility model provides a kind of cover plate for being used to fill engine by-pass air duct gap, has the advantages that：
1st, the cover plate made using glass fibre reinforced polyetherimide material, makes cover plate have certain toughness, in light weight
Stability is good, and can reduce engine part quantity, can also break cover plate into two with one's hands along fit-up gap the integral structure of deck design
Target part is inserted directly into, adds efficiency of assembling.
2nd, reinforcement can increase the structural soundness of cover plate；
3rd, the mounting seat of convex type avoids cover plate outer rim and casing localized contact, it is therefore prevented that stress is concentrated and produces and split
Line.
Brief description of the drawings
Fig. 1 is the top structure schematic diagram for filling the cover plate in engine by-pass air duct gap；
Fig. 2 is the polycrystalline substance schematic diagram for filling the cover plate in engine by-pass air duct gap；
Fig. 3 is the front-view schematic diagram for filling the cover plate in engine by-pass air duct gap；
Fig. 4 is the placement schematic diagram for filling the cover plate in engine by-pass air duct gap；
Fig. 5 is the assembling schematic diagram for filling the cover plate in engine by-pass air duct gap.
Reference：Cover plate 1, reinforcement 2, mounting seat 3, leaf hole 4, bolt hole 5, fit-up gap 6, Middle casing support plate
7, Middle casing 8.
Embodiment
To make the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the embodiment of the utility model is further described in more detail.In the accompanying drawings, from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Described reality
It is the utility model part of the embodiment to apply example, rather than whole embodiments.Below with reference to the embodiment of accompanying drawing description
It is exemplary, it is intended to for explaining the utility model, and it is not intended that to limitation of the present utility model.It is new based on this practicality
Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The limitation of novel protected scope.
The utility model is described in further detail below by specific embodiment.
Specific embodiment：
The utility model provides a kind of cover plate for being used to fill engine by-pass air duct gap, during cover plate 1 is fixed on
On Jie's casing 8, in the present embodiment, cover plate 1 is formed in one structure and to be made using glass fibre reinforced polyetherimide material,
Make cover plate 1 that there is certain toughness；
The structure of cover plate 1 as shown in Figures 1 and 2, is provided with leaf hole 4 at the center of cover plate 1, leaf hole 4 is used in being enclosed on
On the outer wall of Jie's casing support plate 7, the outer rim bottom of cover plate 1 and the inner edge bottom in leaf hole 4 are raised in the bottom surface of cover plate 1, cover plate 1
Bottom surface be provided with multiple reinforcements 2, reinforcement 2 has a certain thickness, the outer rim inwall and leaf with cover plate 1 respectively of reinforcement 2
The inner edge outer wall in shape hole 4 is connected, and the outer rim wallboard of cover plate 1 is connected with the inner edge wallboard in leaf hole 4 by reinforcement 2
Connect, enhance the structural soundness of cover plate 1, it is preferred that the bottom surface of reinforcement 2 does not protrude from the outer rim bottom surface of cover plate 1 and leaf
The inner edge bottom surface in hole 4；
In the present embodiment, reinforcement 2 is in X-type or V-type, and V-shaped reinforcement 2 has two independent terminations and a convergence
Termination, converges termination and independent termination is mutually fixed with the outer rim wallboard of cover plate 1 and the inner edge wallboard in leaf hole 4 respectively, in X-type
Reinforcement 2 has four independent terminations, respectively there is two independent terminations and the outer rim wallboard of cover plate 1 and the inner edge wallboard in leaf hole 4
It is mutually fixed.
As shown in Figures 2 and 3, the bottom of cover plate 1 is provided with multiple mounting seats 3, and in the present embodiment, the quantity of mounting seat 3 is
Six, the both sides of the center line of cover plate 1 are symmetrically distributed in, three mounting seats 3 are set per side, mounting seat 3 is raised in the bottom of cover plate 1
Face, the bottom surface of mounting seat 3 is respectively positioned on same plane and is respectively positioned on the lowest part of cover plate 1, to ensure the bottom surface of mounting seat 3 and intermediary
Casing 8 is in contact, and the mounting structure of this convex type avoids the outer rim and the localized contact of Middle casing 8 of cover plate 1, it is therefore prevented that because
Stress concentration and crack.
As shown in Figures 1 and 2, bolt hole 5 is provided with mounting seat 3, six mounting seats 3 then have six bolts hole 5, cover plate 1
Mutually fixed by bolt and the by-pass air duct.
In the present embodiment, cover plate 1 is provided with fit-up gap 6 at the blade tip in leaf hole 4, and fit-up gap 6 is out of leaf hole 4
Wall extends to the outer wall of cover plate 1, i.e. cover plate 1 can be broken into two with one's hands at fit-up gap 6 and make cover plate 1 U-shaped, and then set is set to intermediary
On casing support plate 7, it is arranged rear fit-up gap 6 and re-closes, now the inner edge wall in leaf hole 4 and Middle casing support plate 7 is outer
Wall fitting contact, the placement schematic diagram of cover plate 1 are as shown in Figure 4；
The assembling schematic diagram of cover plate 1 by cover plate 1 by bolt fitted bolt hole 5 as shown in figure 5, be fixed on Middle casing 8
On, to reach the purpose in filling engine by-pass air duct gap.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in
Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with described
Scope of the claims is defined.
Claims (6)
1. a kind of cover plate for being used to fill engine by-pass air duct gap, cover plate (1) are arranged on engine by-pass air duct sound lining and intermediary
Between casing support plate (7), cover plate (1) is fixed on Middle casing (8), it is characterised in that：
Leaf hole (4) are provided with the center of cover plate (1), the outer wall fitting of the wall and Middle casing support plate (7) of leaf hole (4) connects
Touch；
The outer rim bottom of cover plate (1) and the inner edge bottom of leaf hole (4) are raised in the bottom surface of cover plate (1), the bottom surface of cover plate (1)
Multiple reinforcements (2) are provided with, reinforcement (2) is connected with the outer rim inwall of cover plate (1) and the inner edge outer wall of leaf hole (4) respectively
It is fixed；
The bottom of cover plate (1) is provided with multiple mounting seats (3), and mounting seat (3) is raised in the bottom surface of cover plate (1), the bottom of mounting seat (3)
Face is respectively positioned on same plane and is respectively positioned on the lowest part of cover plate (1), and the bottom surface of mounting seat (3) connects with Middle casing (8)
Touch.
2. the cover plate according to claim 1 for being used to fill engine by-pass air duct gap, it is characterised in that：Reinforcement (2)
In X-type or V-type.
3. the cover plate according to claim 1 for being used to fill engine by-pass air duct gap, it is characterised in that：Cover plate (1)
Bolt hole (5) is provided with mounting seat (3), cover plate (1) is mutually fixed by bolt and the by-pass air duct.
4. the cover plate according to claim 1 for being used to fill engine by-pass air duct gap, it is characterised in that：Cover plate (1) is
Integrated formed structure, and made using glass fibre reinforced polyetherimide.
5. the cover plate according to claim 4 for being used to fill engine by-pass air duct gap, it is characterised in that：Cover plate (1) exists
Fit-up gap (6) is provided with the blade tip of leaf hole (4), the inwall of fit-up gap (6) from leaf hole (4) extends to cover plate (1)
Outer wall.
6. the cover plate according to claim 1 for being used to fill engine by-pass air duct gap, it is characterised in that：Mounting seat (3)
Quantity be six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720356967.2U CN206647184U (en) | 2017-04-07 | 2017-04-07 | For filling the cover plate in engine by-pass air duct gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720356967.2U CN206647184U (en) | 2017-04-07 | 2017-04-07 | For filling the cover plate in engine by-pass air duct gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647184U true CN206647184U (en) | 2017-11-17 |
Family
ID=60275816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720356967.2U Active CN206647184U (en) | 2017-04-07 | 2017-04-07 | For filling the cover plate in engine by-pass air duct gap |
Country Status (1)
| Country | Link |
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| CN (1) | CN206647184U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486169A (en) * | 2019-09-17 | 2019-11-22 | 中国航发沈阳发动机研究所 | A kind of acoustical panel and the sound lining with it |
| CN110735672A (en) * | 2019-10-11 | 2020-01-31 | 中国航发沈阳发动机研究所 | shunt ring and intermediate casing sector section structure with same |
-
2017
- 2017-04-07 CN CN201720356967.2U patent/CN206647184U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486169A (en) * | 2019-09-17 | 2019-11-22 | 中国航发沈阳发动机研究所 | A kind of acoustical panel and the sound lining with it |
| CN110735672A (en) * | 2019-10-11 | 2020-01-31 | 中国航发沈阳发动机研究所 | shunt ring and intermediate casing sector section structure with same |
| CN110735672B (en) * | 2019-10-11 | 2021-10-22 | 中国航发沈阳发动机研究所 | Shunt ring and intermediate casing fan-shaped section structure with same |
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