CN111472846A - Annular gasket and stator casing assembly structure with same - Google Patents
Annular gasket and stator casing assembly structure with same Download PDFInfo
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- CN111472846A CN111472846A CN202010301654.3A CN202010301654A CN111472846A CN 111472846 A CN111472846 A CN 111472846A CN 202010301654 A CN202010301654 A CN 202010301654A CN 111472846 A CN111472846 A CN 111472846A
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- stator
- annular
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- stage
- annular gasket
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- 238000009825 accumulation Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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- 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
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/70—Slinger plates or washers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The application belongs to the technical field of the assembly of engine stator cartridge receiver, concretely relates to stator cartridge receiver assembly structure, include: the side surface of each annular gasket is wavy; a plurality of stages of stator casings, each stage of stator casing having a front end and a rear end opposite to the front end; the front end of each stage of stator casing is provided with a front end annular connecting edge, and the rear end of each stage of stator casing is provided with a rear end annular connecting edge; the rear end annular connecting edge of each stage of stator casing is butted with the front end annular connecting edge of the next stage of stator casing, and an annular gasket is correspondingly arranged between the rear end annular connecting edge and the front end annular connecting edge of the next stage of stator casing. Further, it relates to an annular gasket having all the features of the annular gasket in the above stator case assembling structure.
Description
Technical Field
The application belongs to the technical field of assembling of engine stator casings, and particularly relates to an annular gasket and a stator casing assembling structure with the same.
Background
When the engine is assembled, the multistage stator casings are butted, and because tolerances exist in the machining process of each stage of stator casings, in order to reduce the influence of tolerance accumulation of each stage of stator casings, annular gaskets with corresponding thicknesses are arranged between the stator casings butted by two adjacent stages, so that the tolerances in the machining process of the two stages of stator casings are balanced, but the tolerances among the stator casings of each stage and the tolerances of each machining of each stage of stator casings are not completely consistent, the thicknesses of the corresponding annular gaskets need to be calculated, selected and manufactured according to actual conditions, the process is complicated, the efficiency is low, and the assembling period of the engine is longer.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present patent application.
Disclosure of Invention
The present application is directed to an annular gasket and a stator casing assembling structure having the same, which overcome or alleviate at least one of the known technical disadvantages.
The technical scheme of the application is as follows:
An aspect provides a stator casing assembling structure, including:
The side surface of each annular gasket is wavy;
A plurality of stages of stator casings, each stage of stator casing having a front end and a rear end opposite to the front end; the front end of each stage of stator casing is provided with a front end annular connecting edge, and the rear end of each stage of stator casing is provided with a rear end annular connecting edge; the rear end annular connecting edge of each stage of stator casing is butted with the front end annular connecting edge of the next stage of stator casing, and an annular gasket is correspondingly arranged between the rear end annular connecting edge and the front end annular connecting edge of the next stage of stator casing.
According to at least one embodiment of the present application, in the stator case assembling structure, each of the annular gaskets includes:
A plurality of strip-shaped pieces, each strip-shaped piece having a first end and a second end opposite to the first end; the first end of each strip-shaped sheet is bent and correspondingly connected to the second end of another strip-shaped sheet, and the whole strip-shaped sheet is annular.
According to at least one embodiment of the present application, in the stator case assembling structure, in the respective annular gaskets, the main body portions of the strip pieces to which the first and second ends of each strip piece are connected are located on the same side of the strip piece.
According to at least one embodiment of the present application, in the stator case assembling structure, in each of the annular gaskets, the first end of each of the strip-shaped pieces is bent at an angle of 105 ° to 120 ° with respect to the body portion.
According to at least one embodiment of the application, in the stator casing assembling structure, each annular gasket is provided with a plurality of bolt through holes distributed along the circumferential direction;
The rear end annular connecting edge of each stage of stator casing is connected with the front end annular connecting edge of the next stage of stator casing through a plurality of connecting bolts, and each connecting bolt correspondingly penetrates through one bolt through hole in the annular gasket between the connecting bolts.
According to at least one embodiment of the present application, in the stator case assembling structure, the respective bolt passing holes in each of the strip pieces extend circumferentially along the annular gasket.
According to at least one embodiment of the present application, in the stator case assembling structure, the bolt passing hole of each strip-shaped piece is formed in an oval shape.
According to at least one embodiment of the application, in the stator casing assembling structure, each bolt through hole on each annular gasket is formed in the body part of each strip-shaped sheet corresponding to the bolt through hole.
Another aspect provides an annular gasket having all of the features of any of the above-described stator case assembling structures.
The application has at least the following beneficial technical effects:
On the one hand, the stator casing assembling structure is characterized in that an annular gasket is correspondingly arranged between the rear end annular connecting edge of each stage of stator casing and the front end annular connecting edge of the next stage of stator casing, and the annular gasket is of a wave-shaped structure and can generate corresponding deformation under the extrusion of the rear end annular connecting edge and the front end annular connecting edge of the front and rear stages of stator casings, so that the processing tolerance of the front and rear stages of stator casings can be adapted.
On the other hand, the annular gasket has all the characteristics of the annular gasket in the stator casing assembling structure, and can be at least applied to the stator casing assembling structure to adapt to the tolerance among different stator casings of different processing batches in a self-adaptive manner, so that the influence of tolerance accumulation of the stator casings of different levels is reduced, the assembling efficiency among the stator casings of different levels can be improved, and the assembling period of an engine can be effectively shortened.
Drawings
FIG. 1 is a schematic structural diagram of an annular gasket provided in an embodiment of the present application;
FIG. 2 is a schematic view of a portion of FIG. 1 in the direction F;
Wherein:
1-an annular gasket; 2-strip-shaped piece.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The use of the terms "comprising" or "including" and the like in the description of the present application is intended to indicate that the element or item preceding the term covers the element or item listed after the term and its equivalents, without excluding other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1-2.
An aspect provides a stator casing assembling structure, including:
The side surface of each annular gasket 1 is wavy;
A plurality of stages of stator casings, each stage of stator casing having a front end and a rear end opposite to the front end; the front end of each stage of stator casing is provided with a front end annular connecting edge, and the rear end of each stage of stator casing is provided with a rear end annular connecting edge; the rear end annular connecting edge of each stage of stator casing is butted with the front end annular connecting edge of the next stage of stator casing, and an annular gasket 1 is correspondingly arranged between the rear end annular connecting edge and the front end annular connecting edge.
With respect to the stator case assembling structure disclosed in the above embodiments, it will be understood by those skilled in the art that, an annular gasket 1 is correspondingly arranged between the annular connecting edge at the rear end of each stage of stator casing and the annular connecting edge at the front end of the next stage of stator casing, and as the annular gasket 1 is of a wave-shaped structure, which can be deformed correspondingly under the extrusion of the rear end annular connecting edge and the front end annular connecting edge of the front and rear two-stage stator casings, so as to adapt to the processing tolerance of the front and rear two-stage stator casings, as can be understood, under the condition that the deformation allowance of the annular gasket 1 is large enough, the corresponding deformation can be generated under the extrusion action, the tolerance among various stages of stator casings of different processing batches is self-adapted, the influence of the tolerance accumulation of the stator casings of various stages is reduced, therefore, the assembling efficiency among the stator casings of all levels can be improved, and the assembling period of the engine can be effectively shortened.
In some alternative embodiments, in the stator case assembly structure, each annular shim 1 includes:
A plurality of strip pieces 2, each strip piece 2 having a first end, a second end opposite to the first end; the first end of each strip-shaped sheet 2 is bent and correspondingly connected to the second end of another strip-shaped sheet 2, and the whole body is annular.
With regard to the stator case assembling structure disclosed in the above embodiment, it will be understood by those skilled in the art that each annular gasket is formed by connecting a plurality of strip-shaped pieces 2 end to end, and the wave-shape is formed by bending the first end of each strip-shaped piece 2.
In some alternative embodiments, in the stator case assembling structure, in each of the annular gaskets 1, the main body portions of the strip pieces 2 to which the first and second ends of each strip piece 2 are connected are located on the same side of the strip piece 2.
In some alternative embodiments, in the stator case assembling structure, in each of the annular gaskets 1, the first end of each strip-shaped piece 2 is bent at an angle of 105 to 120 degrees with respect to the main body portion, and in this angle range, the annular gasket can be easily deformed under the pressing action.
In some optional embodiments, in the stator casing assembling structure, each annular gasket 1 has a plurality of bolt through holes distributed along the circumferential direction;
The rear end annular connecting edge of each stage of stator casing is connected with the front end annular connecting edge of the next stage of stator casing through a plurality of connecting bolts, and each connecting bolt correspondingly penetrates through one bolt through hole in the annular gasket between the connecting bolts.
In some alternative embodiments, in the stator casing assembling structure, each bolt through hole on each strip 2 extends along the circumference of the annular gasket 1, so as to ensure the movement of each bolt hole and the deformation allowance thereof, and to allow the corresponding connecting bolt to easily pass through under different deformation conditions of the annular gasket.
In some alternative embodiments, the bolt passing hole of each strip 2 is formed in an oval shape in the stator case assembly structure.
In some alternative embodiments, in the stator casing assembling structure, each bolt through hole on each annular gasket 1 is opened corresponding to the main body part of each strip-shaped piece 2.
Another aspect provides an annular gasket having all the features of the annular gasket 1 in any of the above-described stator case assembling structures.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (9)
1. A stator casing assembling structure, comprising:
The side surface of each annular gasket (1) is wavy;
A multi-stage stator case, each stage of stator case having a front end, a rear end opposite the front end; the front end of each stage of the stator casing is provided with a front end annular connecting edge, and the rear end of each stage of the stator casing is provided with a rear end annular connecting edge; the rear end annular connecting edge of each stage of the stator casing is butted with the front end annular connecting edge of the next stage of the stator casing, and the annular gasket (1) is correspondingly arranged between the rear end annular connecting edge of each stage of the stator casing and the front end annular connecting edge of the next stage of the stator casing.
2. The stator case assembling structure according to claim 1,
Each annular gasket (1) comprises:
A plurality of strip-shaped pieces (2), each strip-shaped piece (2) having a first end, a second end opposite to the first end; the first end of each strip-shaped sheet (2) is bent and correspondingly connected to the second end of the other strip-shaped sheet (2), and the strip-shaped sheet is annular as a whole.
3. The stator case assembling structure according to claim 2,
In each annular gasket (1), the main body part of the strip-shaped sheet (2) connected with the first end and the second end of each strip-shaped sheet (2) is positioned on the same side of the strip-shaped sheet (2).
4. The stator case assembling structure according to claim 3,
In each annular gasket (1), the first end of each strip-shaped sheet (1) is bent at an angle of 105-120 degrees with respect to the main body part.
5. The stator case assembling structure according to claim 2,
Each annular gasket (1) is provided with a plurality of bolt through holes distributed along the circumferential direction;
The rear end annular connecting edge of each stage of the stator casing is connected with the front end annular connecting edge of the next stage of the stator casing through a plurality of connecting bolts, and each connecting bolt correspondingly penetrates through one bolt through hole in the annular gasket between the connecting bolts.
6. The stator case assembling structure according to claim 5,
Each bolt through hole on each strip-shaped sheet (2) extends along the circumferential direction of the annular gasket (1).
7. The stator case assembling structure according to claim 6,
Each bolt through hole on the strip-shaped sheet (2) is oval.
8. The stator case assembling structure according to claim 5,
Each bolt through hole on each annular gasket (1) is formed in the main body part of each strip-shaped sheet (2) correspondingly.
9. An annular gasket, characterized in that it has all the features of the annular gasket (1) in the stator case assembling structure described in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301654.3A CN111472846B (en) | 2020-04-16 | 2020-04-16 | Annular gasket and stator casing assembly structure with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301654.3A CN111472846B (en) | 2020-04-16 | 2020-04-16 | Annular gasket and stator casing assembly structure with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111472846A true CN111472846A (en) | 2020-07-31 |
| CN111472846B CN111472846B (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010301654.3A Active CN111472846B (en) | 2020-04-16 | 2020-04-16 | Annular gasket and stator casing assembly structure with same |
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| Country | Link |
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| CN (1) | CN111472846B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177311A (en) * | 2008-10-15 | 2011-09-07 | 斯奈克玛 | Sealing between a combustion chamber and a turbine distributor in a turbine engine |
| EP3409904A1 (en) * | 2017-05-30 | 2018-12-05 | United Technologies Corporation | Systems for reducing deflection of a shroud that retains fan exit stators |
| CN110030111A (en) * | 2019-04-04 | 2019-07-19 | 中国航发沈阳发动机研究所 | A kind of variable cycle engine core engine driving fan level structure |
-
2020
- 2020-04-16 CN CN202010301654.3A patent/CN111472846B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177311A (en) * | 2008-10-15 | 2011-09-07 | 斯奈克玛 | Sealing between a combustion chamber and a turbine distributor in a turbine engine |
| EP3409904A1 (en) * | 2017-05-30 | 2018-12-05 | United Technologies Corporation | Systems for reducing deflection of a shroud that retains fan exit stators |
| CN110030111A (en) * | 2019-04-04 | 2019-07-19 | 中国航发沈阳发动机研究所 | A kind of variable cycle engine core engine driving fan level structure |
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| Publication number | Publication date |
|---|---|
| CN111472846B (en) | 2022-03-04 |
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