CN106762204B - A kind of profiled spacer for aero-engine floating wall tile - Google Patents
A kind of profiled spacer for aero-engine floating wall tile Download PDFInfo
- Publication number
- CN106762204B CN106762204B CN201611193186.2A CN201611193186A CN106762204B CN 106762204 B CN106762204 B CN 106762204B CN 201611193186 A CN201611193186 A CN 201611193186A CN 106762204 B CN106762204 B CN 106762204B
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- China
- Prior art keywords
- wall
- tile
- load
- profiled spacer
- boss
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
A kind of profiled spacer for aero-engine floating wall tile, applied on the load wall (12) with flame tube floating tile (13), the stud (25) of the flame tube floating tile (13) passes through the load cinclides (35) of load wall (12), the load cinclides (35) is slotted hole, profiled spacer (20) is located on load wall (12), self-locking nut (24) and stud (25) cooperation compress the profiled spacer (20), by profiled spacer (20), load wall (12) and flame tube floating tile (13) are tightened, prevent profiled spacer from rotating, it can guarantee flame tube floating tile due to thermally expanding the relative displacement generated with load wall again simultaneously, reduce the work risk of flame tube floating tile.
Description
Technical field
The invention patent relates to aero-engine fields, relate generally to a kind of for the different of aero-engine floating wall tile
Shape gasket.
Background technique
As engine thrust-weight ratio is constantly promoted, the temperature rise of combustion chamber is also continuously improved, and the single methods for cooling of tradition is
Through that cannot satisfy the use demand, floating wall burner inner liner uses efficient Compound cooling form, divides load with warmware is held in structure
It opens, reduces burner inner liner overall thermal stress level, Calculating Wall Temperature of Flame Tube can be effectively reduced, improve the burner inner liner service life, in the world
The representative engines such as V2500, PW4084, the Trent 1000 to come into operation use floating wall flame tube structure.Burner inner liner
Flame tube floating tile is fixed on inside and outside load wall by stud, and there are gap between tile, tile is solely subjected to thermal force, can when heated
To expand around, thermal stress is discharged, to improve the service life.
When conventional float wall burner inner liner works, tile gasket is mainly pushed by tile stud, and screw thread, which is squeezed, to be acted on obviously,
Tile expansion capacity is vulnerable to limitation, so as to cause tile deformation even crackle.
This patent is designed mainly for tile gasket construction, can guarantee that flame tube floating tile use is wanted while meeting assembly
It asks.Gasket increases push boss after, gasket sliding is pushed by self-locking nut when work, reduces extruding force suffered by tile stud；
Sliding positioning convex platform can guarantee when tile is heated at work that free floating and thermal stress can be discharged.
Summary of the invention
The purpose of the invention patent: providing a kind of flame tube floating tile profiled spacer organization plan, and this structure can improve floating
Dynamic tile at work be heated free floating problem, improve the service life and functional reliability of flame tube floating tile.
The technical solution of the invention patent is: a kind of profiled spacer for aero-engine floating wall tile is applied to
On load wall 12 with flame tube floating tile 13, the stud 25 of the flame tube floating tile 13 passes through the load cinclides 35 of load wall 12, described
Load cinclides 35 is slotted hole, and profiled spacer 20 is located on load wall 12, and self-locking nut 24 compresses described different with the cooperation of stud 25
Shape gasket 20 tightens profiled spacer 20, load wall 12 and flame tube floating tile 13；The profiled spacer 20 include push boss 21,
Positioning convex platform 22, shim body 23 are slided, has macropore 28 among shim body 23, the promotion boss 21 is located at shim body 23
Upper surface side, the promotion boss 21 are cambered surface close to the inner wall 27 of macropore 28, and the inner wall 27 is with macropore 28 with circle
The heart, the stud 25 are passed through from macropore 28, and the self-locking nut 24 is tightened to be fitted close with the inner wall 27 of boss 21 is pushed afterwards,
The sliding positioning convex platform 22 is two, is arcwall face in the inside of 23 lower surface of shim body, the sliding positioning convex platform 22,
Cooperate with stud 25, the outside of the sliding positioning convex platform 22 is plane, is cooperated with the planar section of 35 inner wall of load cinclides.
A kind of profiled spacer for aero-engine floating wall tile, which is characterized in that push boss 21
Inner wall 27 using with macropore 28 it is concentric by the way of, push the height 32 of boss 21 between 0.8mm~7mm.
A kind of profiled spacer for aero-engine floating wall tile, which is characterized in that sliding positioning convex platform
22 height 36 are generally 0.1mm~1mm smaller than load wall thickness 37.To guarantee job requirement, sliding positioning convex platform 22 needs 2.
The beneficial effect of the invention patent is: using and pushes boss structure feature, will be pushed by self-locking nut after heated
Profiled spacer guarantees the expansion of flame tube floating tile, improves the force-bearing situation of tile stud.In addition, can by sliding positioning convex platform
With to flame tube floating tile thermal expansion direction guide, prevent profiled spacer from rotating, at the same can guarantee again flame tube floating tile due to
The relative displacement that thermal expansion is generated with load wall, reduces the work risk of flame tube floating tile.
Detailed description of the invention
Fig. 1 is a kind of aero-engine high temperature rise main chamber floating wall type burner inner liner schematic diagram；
Fig. 2 is profiled spacer assembling structure schematic diagram；
Fig. 3 is profiled spacer structural schematic diagram.
10- aero-engine high temperature rise main chamber floating wall type burner inner liner, 11- flame tube head, 12- load wall, 13-
Flame tube floating tile, 20- profiled spacer, 21- push boss, 22- to slide positioning convex platform, 23- shim body, 24- self-locking nut, 25-
Tile stud, 26- tile stud outer diameter, 27- inner wall, 28- macropore, 29- gasket mounting surface, 30- push raised head face, 31-
Shim body thickness, 32- push boss thickness, 33- macropore height, 35- load cinclides, 36- height, 37- thickness, 38- sliding
Gap, 39- gasket macropore internal diameter.
Specific embodiment
With reference to the accompanying drawing and the present invention is discussed in detail in specific embodiment.
Refering to fig. 1, it is a kind of aero-engine high temperature rise main chamber floating wall type burner inner liner schematic diagram, describes flame
Cylinder head 11, load wall 12, flame tube floating tile 13, self-locking nut 24 and profiled spacer 20 relative position.
Referring to Fig.2, be 20 assembling structure schematic diagram of profiled spacer, profiled spacer 20 and load wall 12 when describing work,
The assembly relation of flame tube floating tile 13 and self-locking nut 24.
It is the structural schematic diagram of profiled spacer 20 refering to Fig. 3, which is characterized in that include pushing boss 21, sliding positioning
Boss 22, shim body 23.
Under certain working condition, 13 expanded by heating of flame tube floating tile, tile stud 25 generates displacement, since thermal stress is made
With, it is adjacent to after 24 expanded by heating of self-locking nut and pushes 21 inner wall 27 of boss, and under threaded tightening force effect, promotion abnormity pad
Piece 20 slides.
Push 21 inner wall 27 of boss using with macropore 28 in shim body 23 it is concentric by the way of, ensure that self-locking nut 24
It can be easily assembled.To can be realized self-locking nut 24 when flame tube floating tile 13 thermally expands and push filling for 21 inner wall 27 of boss
The promotion profiled spacer 20 of tap touching, maximal efficiency slides, and need to guarantee that boss height 32 is pushed to can satisfy requirement, generally
Between 1.2mm~2mm.
Sliding positioning convex platform 22 can guide flame tube floating tile 13 to be thermally expanded along 35 direction of load cinclides, so that floating-bush
Piece can sufficiently discharge thermal stress.To guarantee effectively sliding, 22 height 36 of sliding positioning convex platform must be smaller than load wall thickness 37,
Generally between 0.8mm~1.6mm；Glade plane space 38 need to meet flame tube floating tile 13 in maximum thermal expansion with load cinclides 35
Relative shift demand, generally takes 0.1mm~0.3mm.
Claims (3)
1. a kind of profiled spacer for aero-engine floating wall tile, which is characterized in that be applied to band flame tube floating tile (13)
Load wall (12) on, the stud (25) of the flame tube floating tile (13) passes through the load cinclides (35) of load wall (12), described to hold
Power cinclides (35) is slotted hole, and profiled spacer (20) is located on load wall (12), and combined pressure is matched in self-locking nut (24) and stud (25)
The tight profiled spacer (20), profiled spacer (20), load wall (12) and flame tube floating tile (13) are tightened；The profiled spacer
(20) include pushing boss (21), sliding positioning convex platform (22), shim body (23), have macropore among shim body (23)
(28), the promotion boss (21) is located at shim body (23) upper surface side, and the promotion boss (21) is close to macropore (28)
Inner wall (27) be cambered surface, the inner wall (27) and macropore (28) concentric, the stud (25) pass through from macropore (28),
The self-locking nut (24) is fitted close after tightening with the inner wall (27) of boss (21) is pushed, the sliding positioning convex platform (22)
It is two, is arcwall face in the inside of shim body (23) lower surface, sliding positioning convex platform (22), matches with stud (25)
It closes, the outside of sliding positioning convex platform (22) is plane, is cooperated with the planar section of load cinclides (35) inner wall.
2. a kind of profiled spacer for aero-engine floating wall tile according to claim 1, which is characterized in that push away
The inner wall (27) of dynamic boss (21) using with macropore (28) it is concentric by the way of, push boss (21) highly (32) 0.8mm~
Between 7mm.
3. a kind of profiled spacer for aero-engine floating wall tile according to claim 1, which is characterized in that sliding
Dynamic positioning convex platform (22) height (36) is generally 0.1mm~1mm smaller than load wall thickness (37), to guarantee that job requirement, sliding are fixed
Position boss (22) needs 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193186.2A CN106762204B (en) | 2016-12-21 | 2016-12-21 | A kind of profiled spacer for aero-engine floating wall tile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193186.2A CN106762204B (en) | 2016-12-21 | 2016-12-21 | A kind of profiled spacer for aero-engine floating wall tile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762204A CN106762204A (en) | 2017-05-31 |
| CN106762204B true CN106762204B (en) | 2019-05-21 |
Family
ID=58893825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611193186.2A Active CN106762204B (en) | 2016-12-21 | 2016-12-21 | A kind of profiled spacer for aero-engine floating wall tile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762204B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695918A (en) * | 2009-12-16 | 2012-09-26 | 斯奈克玛 | Guiding of a spark plug into a turbine engine combustion chamber |
| CN102954469A (en) * | 2011-08-05 | 2013-03-06 | 通用电气公司 | Assembly and apparatus related to integrating late lean injection into combustion turbine engine |
| CN104847773A (en) * | 2014-02-14 | 2015-08-19 | 广州豹驰汽配有限公司 | Double-gasket assembly of positioning adjusting nut |
-
2016
- 2016-12-21 CN CN201611193186.2A patent/CN106762204B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695918A (en) * | 2009-12-16 | 2012-09-26 | 斯奈克玛 | Guiding of a spark plug into a turbine engine combustion chamber |
| CN102954469A (en) * | 2011-08-05 | 2013-03-06 | 通用电气公司 | Assembly and apparatus related to integrating late lean injection into combustion turbine engine |
| CN104847773A (en) * | 2014-02-14 | 2015-08-19 | 广州豹驰汽配有限公司 | Double-gasket assembly of positioning adjusting nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762204A (en) | 2017-05-31 |
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Address after: 610500 Xindu Xuefu Road, Xindu District, Chengdu, Sichuan Patentee after: AECC SICHUAN GAS TURBINE Research Institute Address before: 621703 P.O. Box 305, Mianyang City, Sichuan Province Patentee before: CHINA GAS TURBINE EST |
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