CN106595791A - Measuring fixture for flow of cavity of hollow blade - Google Patents
Measuring fixture for flow of cavity of hollow blade Download PDFInfo
- Publication number
- CN106595791A CN106595791A CN201611188985.0A CN201611188985A CN106595791A CN 106595791 A CN106595791 A CN 106595791A CN 201611188985 A CN201611188985 A CN 201611188985A CN 106595791 A CN106595791 A CN 106595791A
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- CN
- China
- Prior art keywords
- hollow blade
- middle groove
- cover plate
- depression
- adjustment
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
A measuring fixture for flow of a cavity of a hollow blade comprises a base, an upper mold plate, a pressure plate and an adjusting rack, wherein the upper mold plate is detachably connected with the base; a supporting block is arranged on the base; a top surface of which the size corresponds to that of a molded surface of the lower surface of a base body is arranged on the supporting block; a bottom surface which corresponds to a molded surface of the upper surface of the hollow blade is arranged on the upper mold plate; middle through grooves are formed in the upper mold plate and correspond to an air outlet and a sunken flow channel; an adjusting pressing block and a sealing pressing block which are connected detachably are arranged in each middle through groove; each adjusting pressing block is provided with a bottom surface which corresponds to the molded surface of a cover plate corresponding to the corresponding middle through groove, each sealing pressing block is provided with an L-shaped sealing gasket which corresponds to the cover plate of the corresponding middle through groove and a molded surface of the sunken flow channel; four guide holes, which correspond to the middle through grooves, are formed in the adjusting rack; and by the guide holes, the adjusting rack can be rotatably connected with four pressing rods. By the measuring fixture for flow of the cavity of the hollow blade, the yield of parts and the stability of quality of products are greatly improved.
Description
Technical field
The present invention relates to aero-engine technology field, the inner chamber of more particularly to a kind of hollow blade to aero-engine
Carry out the fixture of flow measurement.
Background technology
Aero-engine devises a kind of hollow copper blade comprising cavity and comes as 0 grade of stator to adapt to severe cold environment
Carry out that bleed is anti-icing, Fig. 1 is a kind of decomposition texture schematic diagram of the hollow blade of aero-engine, Fig. 2 for Fig. 1 hollow blade
Assembled state overlooking the structure diagram, referring to shown in Fig. 1,2, the hollow blade 1 passes through soldering by cover plate 11 and matrix 12
Combine, its geometry, interior lumen type face are free form surface, and dimension precision requirement is high, and belongs to thin wall vane, described
The shaft end of matrix 12 is provided with an air inlet 13, and described matrix 12 is provided with the depression connected with the air inlet 13 in blade
Portion, is provided with three brace rods 121 in the depressed part, the cover plate 11 combined by soldering with matrix 12 after with the support
The female is separated out four gas outlets 14 by muscle 121, and there is depression stream each described gas outlet 14 outside the cover plate 11
Road 141, after brazing the minor variations of the intracavity space of each gas outlet 14 have influence on the flow of the gas outlet 14
Change, the difference of the geomery of each gas outlet 14 also influences whether the flow value of each outlet, causes the sky of part
Throughput control difficulty is big, often causes part rejection because air mass flow is overproof.
The single port flow-measuring method of traditional flow is, stifled three are sealed with wax using fusing every time to four gas outlets 14
Place, alternately sealing wax and dewaxing is carried out four times, completes the detection of four flows of the gas outlet 14.Every time sealing wax is required to dewaxing
Time waits, and is difficult to ensure that the wax for flowing into inner chamber is cleaned up after dewaxing.While work efficiency is low, inner chamber fifth wheel
Cannot be controlled.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of hollow blade inner flow measurement fixture, to be reduced or avoided
Problem noted earlier.
To solve above-mentioned technical problem, the invention provides a kind of hollow blade inner flow measurement fixture, described hollow
Blade is combined with matrix by cover plate by soldering, and the shaft end of described matrix is provided with an air inlet, and described matrix exists
Blade is provided with the depressed part connected with the air inlet, and three brace rods, the cover plate and base are provided with the depressed part
The female is separated out four gas outlets by body after soldering combination with the brace rod, and each described gas outlet is described
There is depression runner outside cover plate, the fixture includes：
Base, the upper die plate being detachably connected with the base, pressing plate and adjustment frame；
The base is provided with a support block, and the support block is provided with the type face chi of the lower surface of correspondence described matrix
Very little top surface,
The upper die plate is provided with bottom surface corresponding with the type face of the upper surface of the hollow blade, the upper die plate correspondence
The gas outlet and the depression runner are provided with middle groove, correspond to each described middle groove, are provided with the tune being detachably connected
Seamless block and sealed briquette, the adjustment briquetting is provided with the corresponding bottom in type face of the cover plate corresponding with the middle groove
Face, the sealed briquette is provided with the corresponding L-type in type face of the cover plate corresponding with the middle groove and the depression runner
Sealing gasket,
The corresponding middle groove of the adjustment frame is provided with four pilot holes, and by the pilot hole, the adjustment frame can
Being rotatably connected has four depression bars.
Preferably, the top of the adjustment briquetting and the sealed briquette can be provided with for being connected with the depression bar
Rotatable disk.
Preferably, the upper die plate, the pressing plate and the adjustment frame are by corresponding locating dowel and the base
It is detachably connected.
A kind of hollow blade inner flow measurement fixture provided by the present invention, has broken what traditional measurement and processing separated
Mode, is remarkably enhanced the qualification rate of part and the stability of product quality.
Description of the drawings
The following drawings is only intended in schematic illustration and explanation is done to the present invention, is not delimit the scope of the invention.Wherein,
Fig. 1 is a kind of decomposition texture schematic diagram of the hollow blade of aero-engine；
Fig. 2 is the assembled state overlooking the structure diagram of the hollow blade of Fig. 1,
Fig. 3 is a kind of decomposition knot of hollow blade inner flow measurement fixture of a specific embodiment according to the present invention
Structure principle schematic.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now control illustrates this
Bright specific embodiment.Wherein, identical part adopts identical label.
Fig. 1 is a kind of decomposition texture schematic diagram of the hollow blade of aero-engine；Fig. 2 is the group of the hollow blade of Fig. 1
Conjunction state overlooking the structure diagram, Fig. 3 is that a kind of hollow blade inner flow of a specific embodiment according to the present invention is surveyed
The decomposition texture principle schematic of amount fixture.Referring to shown in Fig. 1-3, the invention provides a kind of hollow blade inner flow measurement
Fixture, the hollow blade 1 is combined with matrix 12 by cover plate 11 by soldering, and the shaft end of described matrix 12 is provided with one
Individual air inlet 13, described matrix 12 is provided with the depressed part connected with the air inlet 13, the depressed part in blade and arranges
With the brace rod 121 by the female after having three brace rods 121, the cover plate 11 to combine by soldering with matrix 12
Four gas outlets 14 are separated out, there is depression runner 141 each described gas outlet 14 outside the cover plate 11, the fixture includes bottom
Seat 2, upper die plate 3, pressing plate 4 and the adjustment frame 5 being detachably connected with the base 2；
The base 2 is provided with a support block 21, and the support block 21 is provided with the lower surface of correspondence described matrix 12
Molding surface size top surface,
The upper die plate 3 is provided with bottom surface corresponding with the type face of the upper surface of the hollow blade 1, the upper die plate 3
The correspondence gas outlet 14 and the depression runner 141 are provided with middle groove 31, correspond to each described middle groove 31, and being provided with can
The adjustment briquetting 32 and sealed briquette 33 of dismounting connection (only indicates an adjustment briquetting 32 and three sealed briquettes in Fig. 3
33, it is to be understood by those skilled in the art that corresponding each described middle groove 31, is provided with adjustment briquetting 32 and sealing pressure
Block 33), the adjustment briquetting 32 is provided with the corresponding bottom surface in type face of the cover plate 11 corresponding with the middle groove 31, described
Sealed briquette 33 is provided with the corresponding L-type in type face of the cover plate 11 corresponding with the middle groove and the depression runner 141
Sealing gasket 331,
The correspondence of the adjustment frame 5 middle groove 31 is provided with four pilot holes 51, by the pilot hole 51, the tune
Whole frame has been rotatably connected four depression bars 52.
The using method of fixture provided by the present invention is：
The hollow blade 1 is placed in the support block 21, the upper die plate 3 is positioned over into the hollow blade 1
Top, makes the middle groove 31 corresponding with the gas outlet 14 and the depression runner 141, and the fixation upper die plate 3 makes described
Upper die plate 3 clamps the hollow blade 1 with the support block 21, for the gas outlet 14 that measure flow, at it
Corresponding adjustment briquetting 32 is put in the corresponding middle groove 31, correspondence is respectively put in middle groove described in the other three 31
The sealed briquette 33, the pressing plate 4 is installed, the pressing plate 4 is further clamped on described from the side of the middle groove 31
Module 3, installs the adjustment frame 5, and connects the depression bar 52 in the pilot hole 51, makes the depression bar 52 with the adjustment pressure
Block 32 and the sealed briquette 33 are contacted；
The support block 21 is provided with the top surface of the molding surface size of the lower surface of correspondence described matrix 12, and that is to say to ensure
When the hollow blade 1 is placed in the support block 21, can fit with the support block 21 well.The support block 21
Top surface area can be more than the area of the lower surface of described matrix 12, in the position of the molding surface size of the lower surface of correspondence described matrix 12
The place of putting can be indicated by modes such as line, so can easier place the hollow blade 1,
The upper die plate 3 is provided with bottom surface corresponding with the type face of the upper surface of the hollow blade 1, and goes out described in correspondence
QI KOU 14 and it is described depression runner 141 be provided with middle groove 31, that is to say, that the upper die plate 3 with the hollow blade 1
After upper surface laminating, can be with the upper surface of the hollow blade 1 except the depression runner 141 and the top of the gas outlet 14
Other positions outside the cover plate 11 of part are effectively fitted.It is shown in Figure 3, in a preferred embodiment, the upper die plate 3
Can be connected with the base 2 by locating dowel, so can ensure that the upper die plate 3 can be good at and be placed on the support block
The hollow blade 1 on 21 is fitted, additionally, also the upper die plate 3 can be fixed by nut in the locating dowel, so
The clamping to the hollow blade 1 can be ensured.
The width of the middle groove 31 may be slightly larger than its it is corresponding it is described depression runner 141 width, for example, it is described in lead to
The width comparable of groove 31 its corresponding described depression width 2mm of runner 141, that is, the corresponding sealed briquette 33 can be enabled
It is enough respectively to have more 1mm in depression runner 141 both sides, can so ensure the depression runner 141 of the sealed briquette 33 pairs
Effectively sealing.The length of the middle groove 31 can be bigger than the length of the depression runner 141, for example, the middle groove 31
Length can so can ensure that the sealed briquette 33 can effectively to described than the big 4-10mm of length of the depression runner 141
The top of gas outlet 14 is sealed, and can ensure adjustment briquetting 32 and the top of the gas outlet 14 be exposed at it is described in lead to
The contact of the cover plate 11 in groove 31.
Shown in Figure 3, the pressing plate 4 and the adjustment frame 5 equally can be by corresponding locating dowel and the bases 2
Connection simultaneously can be fixed by nut, and the pressing plate 4 can be clamped to the side of the middle groove 31 of the upper die plate 3, so as to
Ensure being brought into close contact for the upper die plate 3 and the hollow blade 1.
In a preferred embodiment, it is described adjustment briquetting 32 and the sealed briquette 33 top can be provided with for
The rotatable disk 34 being connected with the depression bar 52, the disk 34 can be by bearing and the adjustment briquetting 32 and institute
State sealed briquette 33 to connect, so can avoid rotating drive when the depression bar 52 is pushed it is described adjustment briquetting 32 and it is described sealing pressure
Block 33 rotates, so as to causing to shift or wearing and tearing.
Step B, by rotating the depression bar 52 being connected with the sealed briquette 33, makes the sealed briquette 33 right to its
The gas outlet 14 answered is sealed, and the air inlet 13 is connected with source of the gas and is ventilated, and afterwards whole device is immersed into water
In, the upper surface for making the hollow blade 1 is maintained at below the water surface, checks the close of described 33 pairs of gas outlets 14 of sealed briquette
Envelope situation；
Step C, the sealing of gas outlet 14 is bad as described in sealed briquette 33 pairs described in step B, has gas leakage, then further
The position for adjusting the sealed briquette 33 by the depression bar 52 makes its good seal, the outlet as described in the sealed briquette 33 pairs
The effectively sealing of mouth 14, then take out whole device from water, and increases gas stream between the air inlet 13 and the source of the gas
Gauge is simultaneously ventilated again, and now the flow value measured by gas flowmeter is the corresponding gas outlet of the adjustment briquetting 32
14 flow value；
Step D, the flow value of gas outlet 14 meets design requirement as described in the adjustment briquetting 32 is corresponding, then complete stream
Measurement, the flow value of gas outlet 14 as described in the adjustment briquetting 32 is corresponding does not meet design requirement, then rotate with it is described
The depression bar 52 of the adjustment connection of briquetting 32, makes the adjustment briquetting 32 be pressed down against the contact site of the corresponding cover plate 11
And it is deformed, in the process, the flow value measured by the gas flowmeter is observed, when the gas flowmeter institute
When the flow value for measuring meets design requirement, stop the rotation the adjustment briquetting 52 corresponding with the adjustment briquetting 32, completes
Flow measurement process to first gas outlet 14.
Step E, for repeat step A-D of gas outlet described in the other three 14, completes the inner chamber stream to the hollow blade 1
Measurement.
It is to correspond to each described gas outlet 14 to be provided with the adjustment He of briquetting 32 that the present invention is different from prior art maximum
Sealed briquette 33, so as to mechanically seal to gas outlet each described 14, and can be by adjusting briquetting 32
Real-time traffic adjustment is carried out to the measured gas outlet 14, has broken the mode that traditional measurement separates with processing, make part
Qualification rate and the stability of product quality be remarkably enhanced.
It will be appreciated by those skilled in the art that although the present invention is described according to the mode of multiple embodiments,
It is that not each embodiment only includes an independent technical scheme.For the sake of so narration is used for the purpose of understanding in description,
Those skilled in the art should be understood description as an entirety, and by technical scheme involved in each embodiment
Regarding as can be mutually combined into the mode of different embodiments to understand protection scope of the present invention.
Schematically specific embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any
Those skilled in the art, the equivalent variations made on the premise of the design without departing from the present invention and principle, modification and combination,
The scope of protection of the invention all should be belonged to.
Claims (4)
1. a kind of hollow blade inner flow measurement fixture, it is characterised in that the hollow blade passes through pricker by cover plate and matrix
Weldering is combined, and the shaft end of described matrix is provided with an air inlet, and described matrix is provided with and the air inlet in blade
The depressed part of connection, is provided with three brace rods in the depressed part, the cover plate combined by soldering with matrix after with it is described
The female is separated out four gas outlets by brace rod, and there are depression runner, institute in each described gas outlet outside the cover plate
Fixture is stated including base, the upper die plate being detachably connected with the base, pressing plate and adjustment frame；
The base is provided with a support block, and the support block is provided with the molding surface size of the lower surface of correspondence described matrix
Top surface,
The upper die plate is provided with bottom surface corresponding with the type face of the upper surface of the hollow blade, and the upper die plate correspondence is described
Gas outlet and the depression runner are provided with middle groove, correspond to each described middle groove, are provided with the adjustment pressure being detachably connected
Block and sealed briquette, the adjustment briquetting is provided with the corresponding bottom surface in type face of the cover plate corresponding with the middle groove, institute
State sealed briquette and be provided with the corresponding L-type sealing in the type face of the cover plate corresponding with the middle groove and the depression runner
Pad,
The corresponding middle groove of the adjustment frame is provided with four pilot holes, and by the pilot hole, the adjustment frame is rotatable
It is connected with four depression bars.
2. fixture according to claim 1, it is characterised in that the top of the adjustment briquetting and the sealed briquette
It is provided with the rotatable disk for being connected with the depression bar.
3. the fixture according to claim 1-2, it is characterised in that the upper die plate, the pressing plate and the adjustment frame
It is detachably connected with the base by corresponding locating dowel.
4. the fixture according to one of claim 1-3, it is characterised in that the length of the middle groove 31 can be more recessed than described
The big 4-10mm of length of sunken runner 141.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611188985.0A CN106595791B (en) | 2016-12-21 | 2016-12-21 | A kind of hollow blade inner flow measurement fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611188985.0A CN106595791B (en) | 2016-12-21 | 2016-12-21 | A kind of hollow blade inner flow measurement fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106595791A true CN106595791A (en) | 2017-04-26 |
| CN106595791B CN106595791B (en) | 2019-03-22 |
Family
ID=58602104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611188985.0A Active CN106595791B (en) | 2016-12-21 | 2016-12-21 | A kind of hollow blade inner flow measurement fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106595791B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581346A (en) * | 2018-08-14 | 2018-09-28 | 中国航发南方工业有限公司 | Hollow blade soldering fixture |
| CN116990007A (en) * | 2023-09-28 | 2023-11-03 | 中国航发沈阳黎明航空发动机有限责任公司 | Special frock of hollow minute chamber guide vane water flow measurement of duplex integral casting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5183244A (en) * | 1990-02-22 | 1993-02-02 | Southern California Edison | Blade assembling |
| CN103481219A (en) * | 2013-09-16 | 2014-01-01 | 西安航空动力股份有限公司 | Guide blade water flow measuring clamp and guide blade water flow measuring method |
| CN203752004U (en) * | 2014-03-03 | 2014-08-06 | 中国燃气涡轮研究院 | Flow testing fixture for guide vanes of turbine |
| CN104849014A (en) * | 2015-05-05 | 2015-08-19 | 中国南方航空工业(集团)有限公司 | Flow fixture for air cooling flow test on hollow blades |
| CN105269494A (en) * | 2015-11-26 | 2016-01-27 | 中国南方航空工业(集团)有限公司 | Blade flow test clamp |
| CN205254840U (en) * | 2015-12-11 | 2016-05-25 | 株洲中航动力精密铸造有限公司 | Blade exhaust hole flow measures anchor clamps |
-
2016
- 2016-12-21 CN CN201611188985.0A patent/CN106595791B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5183244A (en) * | 1990-02-22 | 1993-02-02 | Southern California Edison | Blade assembling |
| CN103481219A (en) * | 2013-09-16 | 2014-01-01 | 西安航空动力股份有限公司 | Guide blade water flow measuring clamp and guide blade water flow measuring method |
| CN203752004U (en) * | 2014-03-03 | 2014-08-06 | 中国燃气涡轮研究院 | Flow testing fixture for guide vanes of turbine |
| CN104849014A (en) * | 2015-05-05 | 2015-08-19 | 中国南方航空工业(集团)有限公司 | Flow fixture for air cooling flow test on hollow blades |
| CN105269494A (en) * | 2015-11-26 | 2016-01-27 | 中国南方航空工业(集团)有限公司 | Blade flow test clamp |
| CN205254840U (en) * | 2015-12-11 | 2016-05-25 | 株洲中航动力精密铸造有限公司 | Blade exhaust hole flow measures anchor clamps |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581346A (en) * | 2018-08-14 | 2018-09-28 | 中国航发南方工业有限公司 | Hollow blade soldering fixture |
| CN108581346B (en) * | 2018-08-14 | 2020-05-19 | 中国航发南方工业有限公司 | Hollow blade anchor clamps for brazing |
| CN116990007A (en) * | 2023-09-28 | 2023-11-03 | 中国航发沈阳黎明航空发动机有限责任公司 | Special frock of hollow minute chamber guide vane water flow measurement of duplex integral casting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106595791B (en) | 2019-03-22 |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
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