CN106525145B - A kind of device for the progress flow adjustment of blade inner cavity - Google Patents
A kind of device for the progress flow adjustment of blade inner cavity Download PDFInfo
- Publication number
- CN106525145B CN106525145B CN201611188971.9A CN201611188971A CN106525145B CN 106525145 B CN106525145 B CN 106525145B CN 201611188971 A CN201611188971 A CN 201611188971A CN 106525145 B CN106525145 B CN 106525145B
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- CN
- China
- Prior art keywords
- base
- blade
- adjusting
- cover plate
- pressing block
- 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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Links
- 238000003825 pressing Methods 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 35
- 238000005219 brazing Methods 0.000 claims description 9
- 238000012797 qualification Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of device for the progress flow adjustment of blade inner cavity, the pedestal including back box and the scalable connection of the back box, the cope plate being detachably connected with the base, pressing plate and the adjustment frame being fixedly connected with the base；The pedestal is provided with a supporting block, the supporting block is provided with the top surface of the molding surface size of the lower surface of corresponding described matrix, the adjustment frame corresponds to middle groove setting, and there are four pilot holes, and by the pilot hole, the adjustment frame is rotatably connected that there are four compression bars.Provided by the present invention a kind of for carrying out the device of flow adjustment to blade inner cavity, the stability of the qualification rate and product quality that make part is remarkably enhanced.
Description
Technical Field
The invention relates to the technical field of aero-engines, in particular to a device for measuring and adjusting the flow of an inner cavity of a hollow blade of an aero-engine.
Background
In order to adapt to severe cold environment, a hollow copper blade containing a cavity is designed as a 0-level guide blade for air entraining and anti-icing, fig. 1 is an exploded structural schematic view of the blade of an aero-engine, fig. 2 is a combined state overlooking structural schematic view of the blade of fig. 1, and as shown in fig. 1 and 2, the blade 1 is a hollow blade which is combined by a cover plate 11 and a base body 12 through brazing, the geometric shape and the inner cavity profile of the hollow blade are free curved surfaces, the requirement on dimensional accuracy is high, the hollow blade belongs to a thin-wall blade, an air inlet 13 is arranged at the shaft end of the base body 12, a depressed part communicated with the air inlet 13 is arranged on the blade body of the base body 12, three support ribs 121 are arranged in the depressed part, the cover plate 11 and the base body 12 are combined through brazing and then are separated from the depressed part into four air outlets 14, each air outlet 14 is provided with a recessed flow channel 141 outside the cover plate 11, a small change in the cavity space of each air outlet 14 after brazing affects a change in the flow rate of the air outlet 14, and a difference in the shape and size of each air outlet 14 also affects the flow rate value of each air outlet 14, so that the difficulty in controlling the air flow rate of a part is high, and the part is often scrapped due to an over-difference in the air flow rate.
In the traditional single-port flow measuring method, three positions of the four air outlets 14 are blocked by using the melted wax every time, and the wax sealing and the melted wax are alternately carried out for four times, so that the flow of the four air outlets 14 is detected. The wax sealing and melting of the wax require time for each time, and the wax flowing into the inner cavity is difficult to clean after the wax is melted. The working efficiency is low, and meanwhile, the excess materials in the inner cavity cannot be controlled.
Disclosure of Invention
The object of the present invention is to provide a device for flow regulation of the inner cavity of a vane, which reduces or avoids the aforementioned problems.
In order to solve the technical problem, the invention provides a device for adjusting the flow of an inner cavity of a blade, wherein the blade is a hollow blade and is combined with a base body through a cover plate by brazing, an air inlet is arranged at the shaft end of the base body, the base body is provided with a sunken part communicated with the air inlet on a blade body, three support ribs are arranged in the sunken part, the sunken part is separated into four air outlets by the cover plate and the base body through the support ribs after being combined through brazing, each air outlet is provided with a sunken flow passage outside the cover plate, the device comprises a bottom box, a base which is telescopically connected with the bottom box, an upper template which is detachably connected with the base, a pressure plate and an adjusting frame which is fixedly connected with the base;
the base is provided with a supporting block which is provided with a top surface corresponding to the profile size of the lower surface of the basal body,
the upper template is provided with a bottom surface corresponding to the molded surface of the upper surface of the blade, the upper template is provided with a middle through groove corresponding to the air outlet and the sunken flow channel, an adjusting pressing block and a sealing pressing block which are detachably connected are arranged corresponding to each middle through groove, the adjusting pressing block is provided with a bottom surface corresponding to the molded surface of the cover plate corresponding to the middle through groove, the sealing pressing block is provided with an L-shaped sealing gasket corresponding to the molded surfaces of the cover plate and the sunken flow channel corresponding to the middle through groove,
the adjusting frame is provided with four guide holes corresponding to the through grooves, and four pressure rods are rotatably connected to the adjusting frame through the guide holes.
Preferably, the top of the adjusting pressing block and the top of the sealing pressing block are both provided with a rotatable disk for connecting with the compression rod.
Preferably, the upper template and the pressing plate are detachably connected with the base through corresponding positioning columns.
The device for adjusting the flow of the inner cavity of the blade breaks through the traditional mode of separating measurement and processing, and greatly improves the qualification rate of parts and the stability of product quality.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is an exploded view of a blade for an aircraft engine;
FIG. 2 is a schematic top view of the blade of FIG. 1 in an assembled state,
fig. 3 is an exploded schematic view of a device for flow regulation of a vane cavity according to an embodiment of the present invention.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
FIG. 1 is an exploded view of a blade for an aircraft engine; fig. 2 is a schematic top view of the vane shown in fig. 1, and fig. 3 is an exploded schematic structural diagram of a device for adjusting flow rate in an inner cavity of the vane according to an embodiment of the present invention. Referring to fig. 1-3, the present invention provides a device for adjusting flow rate of an inner cavity of a blade, wherein the blade 1 is a hollow blade, the cover plate 11 and a base 12 are combined together by brazing, an air inlet 13 is arranged at an axial end of the base 12, a blade body of the base 12 is provided with a recessed portion communicated with the air inlet 13, three support ribs 121 are arranged in the recessed portion, the recessed portion is separated into four air outlets 14 by the cover plate 11 and the base 12 after being combined by brazing and the support ribs 121, each air outlet 14 is provided with a recessed flow channel 141 outside the cover plate 11, the device comprises a bottom box 6, a base 2 telescopically connected with the bottom box 6, an upper mold plate 3 detachably connected with the base 2, a pressure plate 4 and an adjusting frame 5 fixedly connected with the base 2;
the base 2 is provided with a supporting block 21, the supporting block 21 is provided with a top surface corresponding to the profile dimension of the lower surface of the base body 12,
the upper die plate 3 is provided with a bottom surface corresponding to the profile of the upper surface of the blade 1, the upper die plate 3 is provided with a central through groove 31 corresponding to the air outlet 14 and the recessed flow passage 141, and an adjusting press block 32 and a sealing press block 33 (only one adjusting press block 32 and three sealing press blocks 33 are shown in fig. 3) detachably connected to each central through groove 31, but it should be understood by those skilled in the art that an adjusting press block 32 and a sealing press block 33 are provided to each central through groove 31, the adjusting press block 32 is provided with a bottom surface corresponding to the profile of the cover plate 11 corresponding to the central through groove 31, the sealing press block 33 is provided with an L-shaped sealing pad 331 corresponding to the profiles of the cover plate 11 and the recessed flow passage 141 corresponding to the central through groove,
the adjusting frame 5 is provided with four guide holes 51 corresponding to the through groove 31, and four pressure rods 52 are rotatably connected to the adjusting frame through the guide holes 51.
The use method of the device provided by the invention comprises the following steps:
placing the blade 1 on the supporting block 21, placing the upper template 3 above the blade 1, making the through groove 31 correspond to the air outlet 14 and the recessed flow channel 141, fixing the upper template 3, making the upper template 3 and the supporting block 21 clamp the blade 1, for one air outlet 14 whose flow is to be measured, placing a corresponding adjusting pressing block 32 in the through groove 31 corresponding to the air outlet, placing corresponding sealing pressing blocks 33 in the other three through grooves 31, respectively, installing the pressing plate 4, making the pressing plate 4 further clamp the upper module 3 from one side of the through groove 31, connecting the pressing rod 52 in the guiding hole 51, and making the pressing rod 52 contact with the adjusting pressing block 32 and the sealing pressing block 33;
the base 2 with end box 6 telescopic connection, for example, end box 6 bottom can be provided with two hydraulic lifting rod with base 2 is connected, works as like this in the end box 6 water injection back, can be very convenient with through hydraulic lifting rod base 2 submerges and rises out of the water.
The supporting block 21 is provided with a top surface corresponding to the profile size of the lower surface of the base body 12, that is, the supporting block 21 can be well attached to the blade 1 when the blade is placed on the supporting block 21. The area of the top surface of the supporting block 21 may be larger than that of the lower surface of the base body 12, and may be marked by a scribe line or the like at a position corresponding to the size of the profile of the lower surface of the base body 12, so that the vane 1 may be easily placed,
the upper template 3 is provided with a bottom surface corresponding to the molded surface of the upper surface of the blade 1, and a through groove 31 is provided corresponding to the air outlet 14 and the recessed flow passage 141, that is, after the upper template 3 is attached to the upper surface of the blade 1, the upper template can be effectively attached to other positions of the upper surface of the blade 1 except the recessed flow passage 141 and the part above the air outlet 14 and the cover plate 11. Referring to fig. 3, in a preferred embodiment, the upper template 3 may be connected to the base 2 by positioning posts, so as to ensure that the upper template 3 can be well attached to the blade 1 placed on the supporting block 21, and furthermore, the upper template 3 may be fixed to the positioning posts by nuts, so as to ensure that the blade 1 is clamped.
The width of the through groove 31 may be slightly greater than the width of the corresponding recessed channel 141, for example, the width of the through groove 31 may be 2mm greater than the width of the corresponding recessed channel 141, that is, the corresponding sealing pressing block 33 may be 1mm greater on each of two sides of the recessed channel 141, so that effective sealing of the sealing pressing block 33 on the recessed channel 141 can be ensured. The length of the through groove 31 may be greater than that of the recessed channel 141, for example, the length of the through groove 31 may be greater than that of the recessed channel 141 by 4-10mm, so as to ensure that the sealing pressing block 33 can effectively seal the upper portion of the air outlet 14, and ensure that the adjusting pressing block 32 is in contact with the cover plate 11 exposed in the through groove 31 on the upper portion of the air outlet 14.
Referring to fig. 3, the pressing plate 4 may also be connected to the base 2 through corresponding positioning posts and may be fixed through nuts, and the pressing plate 4 may clamp one side of the through groove 31 of the upper mold plate 3, so as to ensure that the upper mold plate 3 is tightly attached to the blade 1.
In a preferred embodiment, the top of the adjusting pressing block 32 and the top of the sealing pressing block 33 can be provided with a rotatable disk for connecting with the pressing rod 52, and the disk can be connected with the adjusting pressing block 32 and the sealing pressing block 33 through bearings, so that the adjusting pressing block 32 and the sealing pressing block 33 are prevented from being driven to rotate when the pressing rod 52 is rotated to press down, and displacement or abrasion are caused.
Rotating the pressure rod 52 connected with the sealing pressing block 33 to enable the sealing pressing block 33 to seal the corresponding air outlet 14, connecting the air inlet 13 with an air source and an air flow meter and ventilating, then injecting water into the bottom box 6 to enable the upper surface of the blade 1 to be kept below the water surface, and checking the sealing condition of the sealing pressing block 33 on the air outlet 14;
if the sealing pressing block 33 has poor sealing performance on the air outlet 14 and air leaks, the position of the sealing pressing block 33 is further adjusted through the pressure rod 52 to enable the sealing performance of the sealing pressing block 33 to be good, and if the sealing pressing block 33 effectively seals the air outlet 14, the flow value measured by the gas flowmeter at the moment is the flow value of the air outlet 14 corresponding to the adjusting pressing block 32;
if the flow value of the gas outlet 14 corresponding to the adjusting pressure block 32 meets the design requirement, the flow measurement is completed, if the flow value of the gas outlet 14 corresponding to the adjusting pressure block 32 does not meet the design requirement, the pressure lever 52 connected with the adjusting pressure block 32 is rotated, so that the adjusting pressure block 32 presses the contact part of the corresponding cover plate 11 downwards and deforms the contact part, in the process, the flow value measured by the gas flowmeter is observed, and when the flow value measured by the gas flowmeter meets the design requirement, the rotation of the pressure lever 52 corresponding to the adjusting pressure block 32 is stopped, the flow measurement adjusting process of the first gas outlet 14 is completed, the base 2 is lifted from the bottom box 6, and the base 2 is located above the water surface.
And repeating the steps for the other three air outlets 14 to complete the adjustment of the inner cavity flow measurement of the blade 1.
The biggest difference between the device and the prior art is that the device is provided, the adjusting pressing block 32 and the sealing pressing block 33 are arranged corresponding to each air outlet 14, so that each air outlet 14 can be sealed in a mechanical mode, the measured air outlet 14 can be subjected to real-time flow adjustment through the adjusting pressing block 32, the traditional mode of separating measurement and processing is broken, and the qualification rate of parts and the stability of product quality are greatly improved.
It should be appreciated by those of skill in the art that while the present invention has been described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including technical equivalents which are related to the embodiments and which are combined with each other to illustrate the scope of the present invention.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (4)
1. A device for adjusting the flow of an inner cavity of a blade is characterized in that the blade is formed by combining a cover plate and a base body together through brazing, an air inlet hole is formed in the shaft end of the base body, a sunken part communicated with the air inlet hole is formed in the blade body of the base body, three support ribs are arranged in the sunken part, the sunken part is separated into four air outlets by the cover plate and the base body through the brazing combination and the support ribs, each air outlet is provided with a sunken flow passage outside the cover plate, and the device comprises a bottom box, a base which is telescopically connected with the bottom box, an upper template which is detachably connected with the base, a pressing plate and an adjusting frame which is fixedly connected with the base;
the base is provided with a supporting block which is provided with a top surface corresponding to the profile size of the lower surface of the basal body,
the upper template is provided with a bottom surface corresponding to the molded surface of the upper surface of the blade, the upper template is provided with a middle through groove corresponding to the air outlet and the sunken flow channel, an adjusting pressing block and a sealing pressing block which are detachably connected are arranged corresponding to each middle through groove, the adjusting pressing block is provided with a bottom surface corresponding to the molded surface of the cover plate corresponding to the middle through groove, the sealing pressing block is provided with an L-shaped sealing gasket corresponding to the molded surfaces of the cover plate and the sunken flow channel corresponding to the middle through groove,
the adjusting frame is provided with four guide holes corresponding to the through grooves, and four pressure rods are rotatably connected to the adjusting frame through the guide holes.
2. The device of claim 1, wherein the top of the adjusting block and the sealing block are each provided with a rotatable disc for connection with the pressure rod.
3. The apparatus of any one of claims 1-2, wherein the upper platen and the pressure plate are removably coupled to the base via corresponding alignment posts.
4. The device of claim 3, wherein the length of the through slot is 4-10mm greater than the length of the recessed flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611188971.9A CN106525145B (en) | 2016-12-21 | 2016-12-21 | A kind of device for the progress flow adjustment of blade inner cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611188971.9A CN106525145B (en) | 2016-12-21 | 2016-12-21 | A kind of device for the progress flow adjustment of blade inner cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106525145A CN106525145A (en) | 2017-03-22 |
| CN106525145B true CN106525145B (en) | 2019-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611188971.9A Active CN106525145B (en) | 2016-12-21 | 2016-12-21 | A kind of device for the progress flow adjustment of blade inner cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106525145B (en) |
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 CN201611188971.9A patent/CN106525145B/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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106525145A (en) | 2017-03-22 |
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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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