CN109505661B - Stator blade - Google Patents
Stator blade Download PDFInfo
- Publication number
- CN109505661B CN109505661B CN201811538367.3A CN201811538367A CN109505661B CN 109505661 B CN109505661 B CN 109505661B CN 201811538367 A CN201811538367 A CN 201811538367A CN 109505661 B CN109505661 B CN 109505661B
- Authority
- CN
- China
- Prior art keywords
- hole
- stator blade
- upper edge
- edge plate
- detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
Abstract
The application relates to aeroengine design technical field, concretely relates to stator blade includes: the detection hole is formed in the upper edge plate of the stator vane and communicated with the inner cavity of the casing, and the upper edge plate of the stator vane is also provided with a fixing hole; and the hole detector hole plugging structure is in fit contact with a plug of the hole detector hole plugging structure, mounting covers are arranged on two sides of the hole detector hole plugging structure, and the hole detector hole plugging structure is fixed on the fixing hole of the upper edge plate of the stator vane through a bolt. The influence on the strength of the fan case shell is avoided when the hole detector hole plugging structure is directly welded on the fan case shell.
Description
Technical Field
The application belongs to the technical field of design of engine fan casings, and particularly relates to a stator blade.
Background
The engine fan case is provided with a detection hole communicated with the inner cavity and used for detecting the condition of the inner cavity of the engine by a hole detector, the hole detector hole plugging structure is arranged at the position of the detection hole, when the hole detector is not used, the detection hole is plugged by a plug of the hole detector hole plugging structure, when the hole detector is used, the plug is removed, and the hole detector is arranged on the hole detector hole plugging structure. The existing hole detector hole plugging structure is of a welding structure, is directly welded on a fan case body, has large stress of the welding structure, is easy to generate fatigue cracks after being used for a period of time, has large influence on the strength of a fan case shell, and influences the use safety.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The utility model aims at providing a stator blade to solve mount pad lug weld and to the great and easy problem that produces fatigue crack of welding mode on fan machine casket casing intensity influence on fan machine casket casing.
The technical scheme of the application is as follows:
a stator blade is arranged on a fan casing of an engine and comprises a detection hole, wherein the detection hole is formed in an edge plate of the stator blade and communicated with an inner cavity of the casing;
the hole detector hole plugging structure is installed on an upper edge plate of the stator blade, a plug of the hole detector hole plugging structure is in contact with the detection hole in a fitting mode, installation covers are arranged on two sides of the hole detector hole plugging structure, and the hole detector hole plugging structure is fixed on a fixing hole in the upper edge plate of the stator blade through bolts.
According to at least one embodiment of the present application, the two sides of the hole detector hole blocking structure are provided with fixing plates, and the installation cover of the hole detector hole blocking structure is opened on the fixing plates.
According to at least one embodiment of the application, two axial sides of the casing of the detection hole on the upper edge plate of the stator blade are provided with hole columns, the hole columns and the upper edge plate of the stator blade are integrally formed into a component, and the fixing hole on the upper edge plate of the stator blade is formed in the hole columns.
According to at least one embodiment of the application, the mounting cover of the hole detector hole blocking structure is fixed on the fixing hole on the upper edge plate of the stator blade through a stud and a self-locking nut.
The application has at least the following beneficial technical effects:
the application provides a stator blade sets up on stator blade flange and surveys the hole to with hole probe hole block structure install on stator blade flange, avoid the intensity reduction that mounting hole probe hole block structure caused on fan machine casket shell.
Drawings
FIG. 1 is a partial cross-sectional view of an upper edge plate portion of a stator vane provided herein;
fig. 2 is a schematic structural view of an upper edge plate of a stator blade provided in the present application.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1-2.
As shown in fig. 1 and 2, the present application provides a stator blade including a probe hole 1 and a hole probe hole blocking structure 2.
The detecting hole 1 is formed in the upper edge plate 6 of the stator blade, the detecting hole 1 is communicated with the inner cavity of the fan casing, hole columns are further arranged on the two axial sides of the casing of the detecting hole 1 in the upper edge plate 6 of the stator blade, the hole columns and the upper edge plate of the stator blade are integrally formed, and the fixing hole 3 is formed in each hole column.
The detection hole 1 is formed in the stator blade edge plate 6, so that the strength reduction caused by the fact that the detection hole 1 is directly formed in the fan casing can be reduced. The threaded hole columns protruding out of the plate surface are arranged on the stator blade upper edge plate 6, so that the influence on the strength of the stator blade upper edge plate 6 can be avoided.
The hole detector hole blocking structure 2 is installed on the upper edge plate 6 of the stator blade, a plug of the hole detector hole blocking structure 2 is in contact with the detection hole 1 in a fitting mode, fixing plates are arranged on two sides of the hole detector hole blocking structure 2, an installation cover 4 is arranged on each fixing plate, and the installation cover 4 is fixed on the fixing holes 3 through studs and self-locking nuts.
The hole detector hole plugging structure 2 is fixed on the upper edge plate of the stator blade, so that the strength reduction caused by welding the hole detector hole plugging structure on the casing of the fan casing can be reduced.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (4)
1. A stator blade for mounting on an engine fan case, said stator blade comprising;
the detection hole (1) is formed in an upper edge plate (6) of the static vane, the detection hole (1) is communicated with an inner cavity of the casing, and the upper edge plate (6) of the static vane is also provided with a fixing hole (3);
the hole detector hole blocking structure (2) is installed on the stator blade upper edge plate (6), a plug of the hole detector hole blocking structure (2) is in contact with the detection hole (1) in a fitting mode, installation covers (4) are arranged on two sides of the hole detector hole blocking structure (2), and the hole detector hole blocking structure is fixed to the fixing hole (3) of the stator blade upper edge plate (6) through bolts (5).
2. The stator blade according to claim 1, characterized in that the borehole finder hole blocking structure (2) is provided with fixing plates on both sides, the mounting cover (4) being connected to the fixing plates.
3. The stator blade according to claim 1, characterized in that the casing including the detection holes (1) on the stator blade upper edge plate (6) is provided with hole columns on both axial sides, the hole columns and the stator blade upper edge plate (6) are an integral component, and the fixing holes (3) are opened on the hole columns.
4. Stator blade according to claim 1, characterized in that the mounting cover (4) is fixed to the fixing hole (3) by means of bolts and self-locking nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538367.3A CN109505661B (en) | 2018-12-16 | 2018-12-16 | Stator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538367.3A CN109505661B (en) | 2018-12-16 | 2018-12-16 | Stator blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505661A CN109505661A (en) | 2019-03-22 |
| CN109505661B true CN109505661B (en) | 2021-09-03 |
Family
ID=65752598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811538367.3A Active CN109505661B (en) | 2018-12-16 | 2018-12-16 | Stator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109505661B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186686B (en) * | 2019-06-20 | 2021-07-20 | 安徽瑞研新材料技术研究院有限公司 | Plugging head assembly of hole detector |
| CN114135345B (en) * | 2021-10-20 | 2023-06-13 | 中国航发四川燃气涡轮研究院 | Plug device for turbine hole detection |
| CN114017137B (en) * | 2021-11-15 | 2024-01-30 | 中国航发沈阳发动机研究所 | Kong Tankong hole blocking structure on casing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012127146A1 (en) * | 2011-03-21 | 2012-09-27 | Jpb Systeme | Shut-off device with automatically activatable locking |
| WO2014191699A2 (en) * | 2013-05-31 | 2014-12-04 | Snecma | Turbomachine casing comprising an endoscopy port |
| CN206845240U (en) * | 2017-06-22 | 2018-01-05 | 成都成发科能动力工程有限公司 | A kind of blast-furnace top gas recovery turbine device |
| CN107725117A (en) * | 2017-09-15 | 2018-02-23 | 中国科学院工程热物理研究所 | A kind of stator blade mounting structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9494052B2 (en) * | 2012-03-27 | 2016-11-15 | United Technologies Corporation | Dual-intent locator pin and removable plug for gas turbines |
-
2018
- 2018-12-16 CN CN201811538367.3A patent/CN109505661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012127146A1 (en) * | 2011-03-21 | 2012-09-27 | Jpb Systeme | Shut-off device with automatically activatable locking |
| WO2014191699A2 (en) * | 2013-05-31 | 2014-12-04 | Snecma | Turbomachine casing comprising an endoscopy port |
| CN206845240U (en) * | 2017-06-22 | 2018-01-05 | 成都成发科能动力工程有限公司 | A kind of blast-furnace top gas recovery turbine device |
| CN107725117A (en) * | 2017-09-15 | 2018-02-23 | 中国科学院工程热物理研究所 | A kind of stator blade mounting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109505661A (en) | 2019-03-22 |
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