CN105527082B - The blade root protection device of blade with blade root kerve - Google Patents
The blade root protection device of blade with blade root kerve Download PDFInfo
- Publication number
- CN105527082B CN105527082B CN201511014983.5A CN201511014983A CN105527082B CN 105527082 B CN105527082 B CN 105527082B CN 201511014983 A CN201511014983 A CN 201511014983A CN 105527082 B CN105527082 B CN 105527082B
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- CN
- China
- Prior art keywords
- blade root
- blade
- kerve
- ceiling portion
- chock
- 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
- 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
Abstract
The invention provides the blade root protection device of the blade with blade root kerve, it can solve the existing blade with blade root kerve blade root bottom surface and kerve when carrying out quiet frequency detection and be acted on the problem of being also easy to produce deformation, impression equivalent damage by saturation pressure.It includes blade root kerve chock and compact heap; blade root kerve chock includes setting integral bottom ceiling portion and projection portion; and bottom ceiling portion links into an integrated entity with the T-shaped section in projection portion; length direction extension of the projection portion along ceiling portion of portion of institute; projection portion, which coordinates, to be flush-mounted in the blade root kerve of blade; the both ends of the length direction in bottom ceiling portion are separately installed with compact heap, and compact heap is provided with L-shaped boss, and the circular arc boss hook of L-shaped boss and blade root sidepiece closes positioning.
Description
Technical field
The present invention relates to the quiet frequency detection field of blade, the blade root protection device of the blade specially with blade root kerve.
Background technology
The static frequency of blade detection of tenon-tooth blade-root is typically to apply a saturation pressure in blade root bottom surface, makes the blade root of blade
Working face is fitted with frequency measurement with the working face of wheel geosynclinal block, and blade frequency is then carried out again.Many blades all can be at blade root bottom now
A kerve structure is designed in face, and this results in blade root bottom surface and drastically reduced available for the site area that frequency measurement is held out against, powerful
Under pressure effect, blade root bottom surface and kerve are easily deformed, impression occur, therefore the blade with kerve is if necessary to frequency measurement
Words, are typically first frequency measurement, reprocess blade root kerve after blade frequencies detection is qualified, this aspect brings pole to scheduling of production
Big inconvenience, on the other hand, blade is after blade root kerve is processed, if finding some portions such as type face, the integral shroud of blade again
Position, which does not reach requirement, needs pincers to repair, or user proposes the rectification requirement to the product when checking and accepting, then after pincers are repaiied or are rectified and improved
Blade will necessarily bring the change of blade actual frequency values so that cause preceding working procedure measure blade frequencies numerical value forbidden
Really, it is necessary to frequency measurement again, and now blade root bottom surface, kerve have been processed, and bottom pressure powerful during frequency measurement will make again
The deformation of blade root bottom surface, kerve dimension overproof and kerve profile are collapsed, and ultimately resulting in user can not receive.
The content of the invention
The invention provides the blade root protection device of the blade with blade root kerve, it can solve existing with blade root kerve
Blade when carrying out the detection of quiet frequency blade root bottom surface and kerve be also easy to produce deformation, impression equivalent damage by the effect of saturation pressure and asked
Topic.
The blade root protection device of blade with blade root kerve, it is characterised in that：It includes blade root kerve chock and compression
Block, the blade root kerve chock includes setting integral bottom ceiling portion and projection portion, and the bottom ceiling portion
Linked into an integrated entity with the T-shaped section in projection portion, length direction extension of the projection portion along the bottom ceiling portion is described convex
Block portion, which coordinates, to be flush-mounted in the blade root kerve of blade, and the both ends of the length direction in the bottom ceiling portion are separately installed with institute
Compact heap is stated, the compact heap is provided with L-shaped boss, and the circular arc boss hook of the L-shaped boss and blade root sidepiece closes positioning.
Further, screwed hole, the spiral shell are had on the both sides end face of the length direction in the bottom ceiling portion
Pit is bolted connection with the compact heap.
Further, the two ends of the length direction in the projection portion are provided with the both ends for protruding from the bottom ceiling portion
Protuberance, the one side of the relatively described L-shaped boss of the compact heap is provided with Baltimore groove, and the protuberance is flush-mounted in the spill
In groove and the open end of the Baltimore groove of the compact heap is pasted with the end face in the bottom ceiling portion of the blade root kerve chock
Close, the both sides that the compact heap is located at the Baltimore groove are provided with kidney-shaped unthreaded hole, the bolt pass through after the kidney-shaped unthreaded hole with institute
State threaded connection between the screwed hole in bottom ceiling portion.
Further, the width in the projection portion of the blade root kerve chock is consistent with the width of blade root kerve, the projection
Interference fits between portion and blade kerve.
Further, the height in the projection portion of the blade root kerve chock is more than the depth capacity of blade root kerve.
Further, the minimum material of the length than blade root width in the bottom ceiling portion of the blade root kerve chock
Small 0.1mm~0.2mm.
The beneficial effects of the present invention are：The projection portion of blade root kerve chock is chimeric to be assemblied in blade root kerve so as to leaf
Root protector plays the effect of being effectively protected；When blade carries out quiet frequency detection, the bottom ceiling portion of blade root kerve chock turns into
The stress surface of saturation pressure, can make the frequency measurement state of blade improve blade frequencies detection essence closer to the working condition of blade
Degree and stability, can protect blade root bottom surface not damaged by external force again；Meanwhile, the compact heap of both sides ensure that blade root kerve
Chock will not be come off from blade while protecting blade root side not damaged by external force；Therefore the blade root protection device of the present invention can have
Effect protection blade root kerve, blade root bottom surface and blade root side are injury-free in frequency detecting, so as to both can guarantee that blade
The accuracy of frequency detecting can guarantee that the blade quality of production again, at the same also greatly reduce blade because frequency measurement damage and caused by pincers
Finishing reason, effectively improves production efficiency.
Brief description of the drawings
Fig. 1 has the main structure diagram of the blade root protection device of the blade of blade root kerve for the present invention；
Fig. 2 has the side structure schematic view of the blade root protection device of the blade of blade root kerve for the present invention；
Fig. 3 shows for the front view structure of the blade root protection device middle period foundation slot plug block of blade of the present invention with blade root kerve
It is intended to；
Fig. 4 regards mplifying structure schematic diagram for Fig. 3 right side；
Fig. 5 for the present invention with blade root kerve blade blade root protection device in compact heap main structure diagram；
Fig. 6 is Fig. 5 right side structural representation；
Fig. 7 is Fig. 6 overlooking the structure diagram.
Reference：10- blade root kerve chocks；11- bottoms ceiling portion；111- screwed holes；112- end faces；12- projections
Portion；13- protuberances；20- compact heaps；21-L shape boss；22- Baltimore grooves；23- end faces；24- kidney-shaped unthreaded holes；30- blades；31- leaves
Root；32- blade root kerves；33- circular arc boss；40- bolts.
Embodiment
See Fig. 1, Fig. 2, the present invention has the blade root protection device of the blade of blade root kerve, and it includes blade root kerve chock 10
With compact heap 20, the two ends of the length direction of blade root kerve chock 10 are separately installed with a compact heap 20, blade root kerve chock
10 include setting integral bottom ceiling portion 11 and projection portion 12, and bottom ceiling portion 11 is T-shaped with projection portion 12
Section is linked into an integrated entity, and length direction extension of the projection portion 12 along bottom ceiling portion 11, the interference fits of projection portion 12 are installed on
In the blade root kerve 32 of blade 30, the both ends of the length direction in bottom ceiling portion 11 are separately installed with compact heap 20, compress
Block 20 is provided with L-shaped boss 21, and the hook of circular arc boss 33 of L-shaped boss 21 and the sidepiece of blade root 31 closes positioning；Bottom ceiling portion
Screwed hole 111 is had on the both sides end face of 11 length direction, Fig. 3 and Fig. 4, the two ends of the length direction in projection portion 12 is seen
Protuberance 13 provided with the both ends for protruding from bottom ceiling portion 11, compact heap 20 is provided with respect to the one side of L-shaped boss 21
Baltimore groove 22, is shown in Fig. 5, Fig. 6 and Fig. 7, protuberance 13 be flush-mounted in Baltimore groove 22 and the Baltimore groove 22 of compact heap 20 opening
One side end face 23 is fitted with the end face 112 in the bottom ceiling portion 11 of blade root kerve chock 10, and compact heap 20 is located at Baltimore groove 22
Both sides be provided with kidney-shaped unthreaded hole 24, bolt 40 through after kidney-shaped unthreaded hole 24 the screwed hole 111 in bottom ceiling portion 11 spiral shell
Line is connected, and so as to realize the adjustment of compact heap 20 in a longitudinal direction, is further ensured that blade root kerve chock 11 and two ends
Being reliably connected between compact heap 20.
In apparatus of the present invention, the width b in the projection portion 12 of blade root kerve chock 10 is consistent with the width of blade root kerve；Blade root
The height h in the projection portion 12 of kerve chock 10 is more than the depth capacity of blade root kerve；The bottom ceiling of blade root kerve chock 10
Minimum material small 0.1mm~0.2mms of the length a in portion 11 than blade root width.
Before to blade frequency, apparatus of the present invention are first installed on blade root bottom surface, its specific installation process is：First
What a compact heap 20 assembled in one end of blade root kerve chock 10, then by the projection portion 11 of blade root kerve chock 10 be embedded in into
In blade root kerve 32, and the L-shaped boss of the compact heap 20 assembled is hooked to the boss and so that pressure for sharing blade root side
Tight block 20 is adjacent to sideways with blade root, then another piece of compact heap 20 is assembled to the other end of blade root kerve chock 10；It incite somebody to action this
Invention device is installed on behind blade root bottom surface, then by blade integral lifting load frequency measurement with take turns geosynclinal block in carry out frequency measurement.This hair
Bright device can be used for the protection to blade root kerve, blade root bottom surface and blade root side during blade production flow.
Claims (6)
1. the blade root protection device of the blade with blade root kerve, it is characterised in that：It includes blade root kerve chock and compact heap,
The blade root kerve chock includes setting integral bottom ceiling portion and projection portion, and the bottom ceiling portion with it is convex
The T-shaped section of block portion links into an integrated entity, length direction extension of the projection portion along the bottom ceiling portion, the projection portion
Cooperation is flush-mounted in the blade root kerve of blade, and the both ends of the length direction in the bottom ceiling portion are separately installed with the pressure
Tight block, the compact heap is provided with L-shaped boss, and the circular arc boss hook of the L-shaped boss and blade root sidepiece closes positioning.
2. the blade root protection device of the blade according to claim 1 with blade root kerve, it is characterised in that：The bottom
Screwed hole is had on the both sides end face of the length direction in ceiling portion, the screwed hole is tight by bolt with the compact heap
It is solidly connected.
3. the blade root protection device of the blade according to claim 2 with blade root kerve, it is characterised in that：The projection
The two ends of the length direction in portion are provided with the protuberance at the both ends for protruding from the bottom ceiling portion, and the compact heap is with respect to institute
The one side for stating L-shaped boss is provided with Baltimore groove, the protuberance be flush-mounted in the Baltimore groove and the compact heap spill
The open end of groove is fitted with the end face in the bottom ceiling portion of the blade root kerve chock, and the compact heap is located at the spill
The both sides of groove are provided with kidney-shaped unthreaded hole, the bolt through after the kidney-shaped unthreaded hole the screwed hole in the bottom ceiling portion
Threaded connection.
4. according to the blade root protection device of any described blade with blade root kerve in claims 1 to 3, its feature exists
In：The width in the projection portion of the blade root kerve chock is consistent with the width of blade root kerve, the projection portion and blade kerve it
Between interference fits.
5. according to the blade root protection device of any described blade with blade root kerve in claims 1 to 3, its feature exists
In：The height in the projection portion of the blade root kerve chock is more than the depth capacity of blade root kerve.
6. according to the blade root protection device of any described blade with blade root kerve in claims 1 to 3, its feature exists
In：The length in the bottom ceiling portion of the blade root kerve chock than blade root width the small 0.1mm of minimum material~
0.2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014983.5A CN105527082B (en) | 2015-12-31 | 2015-12-31 | The blade root protection device of blade with blade root kerve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014983.5A CN105527082B (en) | 2015-12-31 | 2015-12-31 | The blade root protection device of blade with blade root kerve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105527082A CN105527082A (en) | 2016-04-27 |
| CN105527082B true CN105527082B (en) | 2017-11-07 |
Family
ID=55769448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511014983.5A Active CN105527082B (en) | 2015-12-31 | 2015-12-31 | The blade root protection device of blade with blade root kerve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105527082B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180842B (en) * | 2016-06-23 | 2018-03-13 | 无锡透平叶片有限公司 | A kind of amendment processing method of quiet frequency detection fixture race molded line |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB643914A (en) * | 1948-03-08 | 1950-09-27 | Joseph Stanley Hall | Improvements in and relating to turbine or like blade securing means |
| US3720480A (en) * | 1971-06-29 | 1973-03-13 | United Aircraft Corp | Rotor construction |
| CN2620090Y (en) * | 2003-05-30 | 2004-06-09 | 上海汽轮机有限公司 | Steam turbine rotor reaction type T type blade root vane circumference expansion device |
| CN2786576Y (en) * | 2005-04-29 | 2006-06-07 | 东方汽轮机厂 | Steamer lamina frequency measuring equipment |
| CN203337257U (en) * | 2013-07-23 | 2013-12-11 | 杭州汽轮机械设备有限公司 | Steam turbine rotor blade frequency measurement tooling fixture |
| CN104564801A (en) * | 2014-11-18 | 2015-04-29 | 东方电气集团东方汽轮机有限公司 | Axial positioning structure for compressor blade in impeller groove |
| CN204788650U (en) * | 2015-07-27 | 2015-11-18 | 哈尔滨汽轮机厂有限责任公司 | Measure universal fixturing of quiet frequency of blade |
| CN205352673U (en) * | 2015-12-31 | 2016-06-29 | 无锡透平叶片有限公司 | Blade root protection device of blade with blade root kerve |
-
2015
- 2015-12-31 CN CN201511014983.5A patent/CN105527082B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105527082A (en) | 2016-04-27 |
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