CN207554126U - A kind of combined type rear housing support plate dome structure and rear housing - Google Patents
A kind of combined type rear housing support plate dome structure and rear housing Download PDFInfo
- Publication number
- CN207554126U CN207554126U CN201721746272.1U CN201721746272U CN207554126U CN 207554126 U CN207554126 U CN 207554126U CN 201721746272 U CN201721746272 U CN 201721746272U CN 207554126 U CN207554126 U CN 207554126U
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- rear housing
- heat shield
- main heat
- support plate
- wing plate
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Abstract
The utility model discloses a kind of combined type rear housing support plate dome structure and rear housings.The combined type rear housing support plate dome structure includes main heat shield, the first rectification wing plate and the second rectification wing plate；Wherein, the main heat shield tail end is provided with the open assembly for being capable of activity, and the open assembly for being capable of activity can be closed or opened；First rectification wing plate is mounted on the main heat shield side；Second rectification wing plate is mounted on the opposite side of the main heat shield；The first rectification wing plate is connected with each other with the second rectification wing plate.The combined type rear housing support plate dome structure of the application is by the way of circumferentially segmented, since main heat shield itself has the function of gluing, sealing, two pieces wing plate can play the rectified action of back segment simultaneously, therefore rear housing inner and outer rings radome fairing can be realized by being bonded with main heat shield to the heat-insulated of rear housing main body, the slow transition of main heat shield tail portion circle, so as to avoid inner and outer rings radome fairing type hole tail portion transition it is sharp the problem of.
Description
Technical field
The utility model is related to turbine rear casing technical field, more particularly to a kind of combined type rear housing support plate radome fairing
Structure and rear housing.
Background technology
Aero-turbine rear housing is broadly divided into inner ring, outer shroud two parts by blast tube, passes through several between the two
Radially (or inclined) connection support plate forms agent structure.For rear housing agent structure is made to be isolated with combustion gas, while have both rectification
Effect, rear housing main body inner ring, outer shroud flow passage side and connection support plate outside are commonly installed the heat-insulated dome structure of thin wall-type,
Middle support plate radome fairing is ensures combustion gas aeroperformance, and section is in leading edge boss, gradually flat, aerofoil profile that trailing edge is sharp from the front to the back
Shape.
To play preferable heat-blocking action, inner and outer rings radome fairing should have with support plate radome fairing junction to be preferably bonded
Property (leakproofness).Support plate radome fairing is typically directly positioned at rear housing main body, and inner and outer rings radome fairing is then according to support plate radome fairing
Cross sectional shape reserves suitable type hole to ensure stickiness.To ensure to assemble, the generally axially front and rear segmentation of inner and outer rings radome fairing
Or circumferentially segmented structure.For the inner ring or outer ring radome fairing being segmented axially back and forth, the flat structure in support plate radome fairing rear end
Feature causes the inner and outer rings radome fairing type hole tail portion being bonded therewith sharp, knuckle very little, and stress concentration effect is apparent；When
Preceding aero-turbine rear housing inner ring radome fairing generally using axial segmentation structure, reseach of engine experience have shown that, inner ring
Radome fairing type hole tail portion sharp transitions area is radome fairing weak part, even if setting crack arrest pore structure, still generally existing crackle are asked
Topic and the risk torn.
Thus, it is desirable to have a kind of technical solution is come at least one drawbacks described above for overcoming or at least mitigating the prior art.
Utility model content
The purpose of this utility model is to provide a kind of combined type rear housing support plate dome structures to overcome or at least subtract
At least one drawbacks described above of the light prior art.
To achieve the above object, the utility model provides a kind of combined type rear housing support plate dome structure, the combination
Formula rear housing support plate dome structure includes main heat shield, the first rectification wing plate and the second rectification wing plate；Wherein,
The main heat shield tail end is provided with the open assembly for being capable of activity, and the open assembly for being capable of activity can seal
It closes or opens；
First rectification wing plate is mounted on the main heat shield side；
Second rectification wing plate is mounted on the opposite side of the main heat shield；
The first rectification wing plate is connected with each other with the second rectification wing plate.
Preferably, the trailing exterior surface rounding off of the main heat shield.
Preferably, the first rectification wing plate passes through rivet interlacement with the main heat shield.
Preferably, the second rectification wing plate passes through rivet interlacement with the main heat shield.
Preferably, the open assembly includes the first hatch frame and the second hatch frame, first hatch frame
It connect, and can be rotated relative to the main heat shield with the main heat shield；
Second hatch frame is connect with the main heat shield, and can be rotated relative to the main heat shield.
Preferably, first hatch frame is closed with second hatch frame by rivet.
Preferably, bolt hole is provided on first hatch frame or second hatch frame, another described
The bolt coordinated with the bolt hole, first hatch frame are provided on one hatch frame or second hatch frame.
Present invention also provides a kind of rear housing, the rear housing includes combined type rear housing support plate rectification as described above
Cover structure.
The combined type rear housing support plate dome structure of the application is by the way of circumferentially segmented, due to main heat shield itself
There is gluing, sealing, while two pieces wing plate can play the rectified action of back segment, therefore rear housing inner and outer rings radome fairing can lead to
It crosses and realization is bonded with main heat shield to the heat-insulated of rear housing main body, the main slow transition of heat shield tail portion circle, so as to avoid inner and outer rings
The problem of tail portion transition of radome fairing type hole is sharp efficiently solves crack problem caused by stress is concentrated, and improving structure can
By property.
Description of the drawings
Fig. 1 is the structure diagram of the combined type rear housing support plate dome structure of the application first embodiment.
Reference numeral：
| 1 | Main heat shield | 3 | Second rectification wing plate |
| 2 | First rectification wing plate |
Specific embodiment
To make the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model
Attached drawing in embodiment, is further described in more detail the technical scheme in the embodiment of the utility model.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, instead of all the embodiments.Below with reference to the embodiment of attached drawing description
It is exemplary, it is intended to for explaining the utility model, and it is not intended that limitation to the 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 without creative efforts
Example, shall fall within the protection scope of the present invention.The embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
In the description of the present invention, it is to be appreciated that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of description the utility model and simplifies description rather than instruction or imply signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this practicality
The limitation of novel protected range.
Fig. 1 is the structure diagram of the combined type rear housing support plate dome structure of the application first embodiment.
Combined type rear housing support plate dome structure as shown in Figure 1 include main heat shield 1, the first rectification wing plate 2 and
Second rectification wing plate 3；Wherein, main 1 tail end of heat shield (right side shown in Fig. 1) is provided with the open assembly for being capable of activity, can live
Dynamic open assembly can be closed or opened；First rectification wing plate 2 is mounted on main 1 side of heat shield；Second rectification wing plate 3 is pacified
Mounted in the opposite side of main heat shield 1；First rectification wing plate 2 is connected with each other with the second rectification wing plate 3.
The combined type rear housing support plate dome structure of the application is by the way of circumferentially segmented, due to main heat shield itself
There is gluing, sealing, while two pieces wing plate can play the rectified action of back segment, therefore rear housing inner and outer rings radome fairing can lead to
It crosses and realization is bonded with main heat shield to the heat-insulated of rear housing main body, the main slow transition of heat shield tail portion circle, so as to avoid inner and outer rings
The problem of tail portion transition of radome fairing type hole is sharp efficiently solves crack problem caused by stress is concentrated, and improving structure can
By property.
In the present embodiment, the trailing exterior surface rounding off of main heat shield.
Using this structure, the main slow transition of heat shield tail portion circle, so as to avoid inner and outer rings radome fairing type hole tail portion transition
The problem of sharp, efficiently solves crack problem caused by stress is concentrated, improves structural reliability.
Referring to Fig. 1, in the present embodiment, the first rectification wing plate passes through rivet interlacement with main heat shield.Second rectification wing plate
Pass through rivet interlacement with main heat shield.
In the present embodiment, open assembly include the first hatch frame and the second hatch frame, the first hatch frame with
Main heat shield connection, and can be rotated relative to main heat shield；Second hatch frame is connect with main heat shield, and can lead relatively every
Heat cover rotation.In this way, the open assembly for being capable of activity so as to form one passes through the first hatch frame and the
The rotation of two hatch frames, so as to form state is closed or opened.A certain angle, are turned in the first hatch frame
Two hatch frames, which turn to a certain angle phase, can mutually close, so as to close.
In the present embodiment, first hatch frame is closed with second hatch frame by rivet.
For example, when in use, main heat shield 1, the first rectification wing plate 2 and the second rectification wing plate 3 pass through riveting first
Nail connects and composes combined type rear housing support plate dome structure, and combined type rear housing support plate dome structure is in the opening group of rear end
Packet ties up rear housing connection support plate in the case that part is opened, and then is allowed to be closed by row's rivet, while the tail portion of main heat shield
It is adjacent to.Main heat shield upper end or lower end are equipped with attachment screw hole at one, are connected by screw to rear housing main body, then carry out
The assembling of the rear housings spare part such as inner and outer rings heat shield.
In an alternative embodiment, bolt hole is provided on the first hatch frame or second hatch frame, it is another
The bolt coordinated with bolt hole, the first hatch frame are provided on a first hatch frame or second hatch frame.
Present invention also provides a kind of rear housing, the rear housing includes combined type rear housing support plate rectification as described above
Cover structure.
It is last it is to be noted that：Above example is only to illustrate the technical solution of the utility model rather than it is limited
System.Although the utility model is described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should manage
Solution：It can still modify to the technical solution recorded in foregoing embodiments or to which part technical characteristic into
Row equivalent replacement；And these modifications or replacement, various embodiments of the utility model that it does not separate the essence of the corresponding technical solution
The spirit and scope of technical solution.
Claims (8)
- A kind of 1. combined type rear housing support plate dome structure, which is characterized in that the combined type rear housing support plate radome fairing knot Structure includes main heat shield (1), the first rectification wing plate (2) and the second rectification wing plate (3)；Wherein,Main heat shield (1) tail end is provided with the open assembly for being capable of activity, and the open assembly for being capable of activity can seal It closes or opens；First rectification wing plate (2) is mounted on main heat shield (1) side；Second rectification wing plate (3) is mounted on the opposite side of the main heat shield (1)；The first rectification wing plate (2) is connected with each other with the second rectification wing plate (3).
- 2. combined type rear housing support plate dome structure as described in claim 1, which is characterized in that the tail of the main heat shield Hold outer surface rounding off.
- 3. combined type rear housing support plate dome structure as claimed in claim 2, which is characterized in that the first rectification wing plate Pass through rivet interlacement with the main heat shield.
- 4. combined type rear housing support plate dome structure as claimed in claim 3, which is characterized in that the second rectification wing plate Pass through rivet interlacement with the main heat shield.
- 5. combined type rear housing support plate dome structure as described in claim 1, which is characterized in that the open assembly includes First hatch frame and the second hatch frame, first hatch frame are connect with the main heat shield, and can be with respect to institute State main heat shield rotation；Second hatch frame is connect with the main heat shield, and can be rotated relative to the main heat shield.
- 6. combined type rear housing support plate dome structure as claimed in claim 5, which is characterized in that first hatch frame It is closed with second hatch frame by rivet.
- 7. combined type rear housing support plate dome structure as claimed in claim 5, which is characterized in that first hatch frame Or bolt hole is provided on second hatch frame, it is set on another described first hatch frame or second hatch frame It is equipped with the bolt coordinated with the bolt hole, first hatch frame.
- 8. a kind of rear housing, which is characterized in that the rear housing includes combination as claimed in any of claims 1 to 7 in one of claims Formula rear housing support plate dome structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721746272.1U CN207554126U (en) | 2017-12-14 | 2017-12-14 | A kind of combined type rear housing support plate dome structure and rear housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721746272.1U CN207554126U (en) | 2017-12-14 | 2017-12-14 | A kind of combined type rear housing support plate dome structure and rear housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554126U true CN207554126U (en) | 2018-06-29 |
Family
ID=62663150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721746272.1U Active CN207554126U (en) | 2017-12-14 | 2017-12-14 | A kind of combined type rear housing support plate dome structure and rear housing |
Country Status (1)
| Country | Link |
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| CN (1) | CN207554126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211683A (en) * | 2020-10-21 | 2021-01-12 | 中国航发沈阳发动机研究所 | Thermal shield for turbine rear casing |
-
2017
- 2017-12-14 CN CN201721746272.1U patent/CN207554126U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211683A (en) * | 2020-10-21 | 2021-01-12 | 中国航发沈阳发动机研究所 | Thermal shield for turbine rear casing |
| CN112211683B (en) * | 2020-10-21 | 2022-11-22 | 中国航发沈阳发动机研究所 | Thermal shield for turbine rear casing |
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