CN109357585A - The radius of gyration measuring device of turbine blade bacterial type blade root - Google Patents
The radius of gyration measuring device of turbine blade bacterial type blade root Download PDFInfo
- Publication number
- CN109357585A CN109357585A CN201811505264.7A CN201811505264A CN109357585A CN 109357585 A CN109357585 A CN 109357585A CN 201811505264 A CN201811505264 A CN 201811505264A CN 109357585 A CN109357585 A CN 109357585A
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- Prior art keywords
- blade root
- gyration
- blade
- turbine blade
- radius
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/003—Measuring of motor parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The present invention provides a kind of radius of gyration measuring devices of turbine blade bacterial type blade root, its arc surface radius of gyration that can solve existing turbine blade bacterial type blade root using R rule directly measurement when error it is very big, and there are problems that the radius of gyration dimension overproof risk when guaranteeing radius of gyration size with processing program.It includes Universal base, dial gauge, gyro black assembly and blade holder, gyro black assembly and blade holder are fixedly installed on Universal base respectively, dial gauge is installed on gyro black assembly and can rotate around the centre of gyration of gyro black assembly, blade holder keeps the centre of gyration of turbine blade consistent with the centre of gyration of dial gauge for Set and Positioning turbine blade, the measuring head of dial gauge and the measured circular arc face contact of bacterium shape blade root.
Description
Technical field
The present invention relates to turbine Blade Machining fields of measurement, specially a kind of revolution of turbine blade bacterial type blade root half
Calipers.
Background technique
Fig. 1 and Fig. 2 is a kind of structural schematic diagram of the bacterial type blade root of typical turbine blade, and O represents steamer in two figures
The centre of gyration line of machine rotor, when work, turbine blade is assemblied on turbine rotor and rotates around the centre of gyration line O,
D represents the vertical range between the blade root datum level M of bacterial type blade root 1 and centre of gyration line O in Fig. 1, and X represents blade root side, Y generation
Table blade root sagittal plane, Z represent tooth form plane.
It include several arc surface P, P1, P2, P3, P4 in respectively Fig. 1 in the toothed surface of bacterial type blade root, each arc surface
The radius of gyration is respectively R1, R2, R3, R4 in Fig. 2, and bacterial type blade root after processing is completed, needs to guarantee the revolution half of each arc surface
Diameter meets design size requirement.Since several arc surfaces of bacterial type blade root are disposably process using profile milling cutter, therefore only
The radius of gyration for measuring wherein some arc surface meets size requirement, then the arc surface for representing entire bacterial type blade root is all satisfied
It is required that.
But since the radius of gyration size of each arc surface is usually tens times of blade root size, the radius of gyration is very big,
And each arc surface is limited by position, and when causing to measure using traditional R rule, often error is very big, cannot
Whether the size of the intuitive reflection radius of gyration is correct.In many cases, radius of gyration size is guaranteed with processing program,
But such way not can avoid because processing program mistake bring processes mistake, not can avoid inclined because of blade clamping position yet
Position deviation (i.e. the deviation of D value) of the centre of gyration relative to blade root datum level, causes final radius of gyration ruler caused by difference
It is very little overproof, influence assembly of the turbine blade on turbine rotor.
Summary of the invention
For existing turbine blade bacterial type blade root the arc surface radius of gyration using R advise directly measurement when error it is very big,
And there is technical issues that the radius of gyration dimension overproof when guaranteeing radius of gyration size with processing program, the present invention mentions
The radius of gyration measuring device for having supplied a kind of turbine blade bacterial type blade root is able to achieve the arc surface radius of gyration of bacterial type blade root
Precise measurement, guarantee stable and reliable product quality.
Its technical solution is such that a kind of radius of gyration measuring device of turbine blade bacterial type blade root, feature exist
In: it includes Universal base, dial gauge, gyro black assembly and blade holder, and the gyro black assembly and the blade holder are solid respectively
Loaded on the Universal base, the dial gauge is installed on the gyro black assembly and can be around the revolution of the gyro black assembly for Dingan County
Center line rotation, the blade holder make centre of gyration line and the institute of the turbine blade for Set and Positioning turbine blade
The centre of gyration line for stating dial gauge is consistent, the measuring head of the dial gauge and the measured circular arc face contact of bacterium shape blade root.
It is further characterized by:
The dial gauge is lever indicator.
The gyro black assembly includes support shaft and rocker arm, and the support shaft and the blade holder are respectively arranged in described logical
With the left and right ends of pedestal, the support shaft is rotatablely installed perpendicular to the Universal base, one end of the rocker arm in the branch
It rotate the rocker arm can around the axis horizontal of the support shaft on support axis, the dial gauge is fixedly installed in described by dial framework
On rocker arm.
Long waist-shaped hole is provided on the rocker arm along its length, the upper end of the dial framework is installed on the length by bolt
In waist-shaped hole, the dial gauge is in be horizontally installed on the right side of the lower end of the dial framework.
The blade holder includes the axially position block, side locating piece and radial direction being respectively arranged on the Universal base
Face locating piece, the vertical range between the right side of the axially position block and the axis of the support shaft are equal to the steam turbine
Theoretical vertical range between the blade root datum level of blade and the centre of gyration line of the turbine blade, the side locating piece
Positioned at the axially position block right side and its top surface be horizontal location face, the sagittal plane locating piece be located at the side position
The front side of block and thereafter side are radial positioning face；The turbine blade in being placed horizontally on the side locating piece, and
And the blade root side of the bacterium shape blade root and the horizontal location face paste are closed, the right side of blade root datum level and the axially position block
Face paste is closed, and blade root sagittal plane and the radial positioning face paste are closed, the axis of the axis of the turbine blade and the support shaft
Intersection；The blade holder further includes top board and side plate, and the top board is movably installed on the axially position block simultaneously
The tooth form plane of the bacterium shape blade root can be compressed downwards；The side plate and the sagittal plane locating piece are located at the bacterium shape
The front and rear sides of blade root, the side plate are movably installed on the sagittal plane locating piece and can be pressed in the bacterium shape blade root
On the sagittal plane locating piece.
The top board is fixedly installed on the top surface of the axially position block by screw, the right end of the top board with
There are the space for accommodating the bacterium shape blade root end, the right end bottoms of the top board between the top surface of the axially position block
Face pressure is in the tooth form plane of the bacterium shape blade root.
The side plate is installed on the sagittal plane locating piece by screw rod, the screw rod pass through the bacterium shape blade root and
One end is fixed on the sagittal plane locating piece, and the other end passes through the side plate rear enclosure and locking nut is housed.
The blade holder further includes clamp bottom board, and the blade holder and the support shaft are located on the Universal base
Between be also equipped with fixture positioning plate, the clamp bottom board is fixedly installed on the Universal base, a left side for the clamp bottom board
Side is equipped with protrusion, and the right side of the fixture positioning plate is equipped with groove, and the male cooperation is inserted into the groove, and
The left side of the clamp bottom board and the right side of the fixture positioning plate recline, the axially position block, side positioning
Block and the sagittal plane locating piece are fixedly installed in respectively on the clamp bottom board.
Offer waist-shaped hole in correspondence with each other on the clamp bottom board and the Universal base respectively, the clamp bottom board and
It is fixed as one between the Universal base by the bolt being installed in the waist-shaped hole.
The beneficial effects of the present invention are:
Measuring device of the invention, gyro black assembly are able to drive dial gauge and rotate around its centre of gyration line, and blade holder can
Set and Positioning is carried out to turbine blade, keeps the centre of gyration line of turbine blade consistent with the centre of gyration line of dial gauge, from
And lean against the measuring head of dial gauge on one of arc surface of bacterium shape blade root, dial gauge is rotated, then the measuring head of dial gauge
The radius of gyration that can measure entire arc surface, by observing the beating scope of percentage list index, as long as meeting design requirement, i.e.,
Illustrate arc surface size qualification, otherwise unqualified, easy to detect quick and intuitive, measurement accuracy is high, is suitble to criticize blade
Measurement.
Detailed description of the invention
Fig. 1 is the main view of turbine blade bacterial type blade root；
Fig. 2 is the cross-sectional view of the line A-A along Fig. 1；
Fig. 3 is main view of the invention；
Fig. 4 is the enlarged drawing in the region G in Fig. 3；
Fig. 5 is the top view of Fig. 3.
Appended drawing reference: 1- bacterial type blade root；2- Universal base；3- dial gauge；4- turbine blade；5- support shaft；6- rocker arm；
7- long waist-shaped hole；8- dial framework；9- axially position block；The side 10- locating piece；11- sagittal plane locating piece；12- top board；The side 13-
Pressing plate；14- screw rod；15- locking nut；16- clamp bottom board；17- fixture positioning plate；18- protrusion；19- waist-shaped hole；20- screw.
Specific embodiment
See Fig. 3 to Fig. 5, a kind of radius of gyration measuring device of turbine blade bacterial type blade root of the invention comprising logical
With pedestal 2, dial gauge 3, gyro black assembly and blade holder, gyro black assembly and blade holder are fixedly installed in Universal base 2 respectively
On, dial gauge 3 is installed on gyro black assembly and can rotate around the centre of gyration line of gyro black assembly, and blade holder is used for Set and Positioning
Turbine blade 4 keeps the centre of gyration line of turbine blade 4 consistent with the centre of gyration line of dial gauge 3, the measuring head of dial gauge 3
It is contacted with the measured circle cambered surface P of bacterium shape blade root 1, dial gauge 3 is preferably lever indicator, and measuring head can be rotated, convenient and quilt
Survey circular arc face contact.
See that Fig. 3, gyro black assembly include support shaft 5 and rocker arm 6, support shaft 5 and blade holder are respectively arranged in Universal base 2
Left and right ends, perpendicular to Universal base 2, one end of rocker arm 6 is rotatablely installed by bearing in making to shake in support shaft 5 support shaft 5
Arm 6 can be around axis B(, that is, gyro black assembly centre of gyration line of support shaft 5) horizontally rotate, it is provided with along its length on rocker arm 6
The upper end of long waist-shaped hole 7, dial framework 8 is installed in long waist-shaped hole 7 by bolt, and dial gauge 3 is in the lower end for being horizontally installed to dial framework 8
Right side.It being designed in this way, the structure of gyro black assembly is simple, and by the way that long waist-shaped hole is arranged, as long as mobile dial framework, i.e., adjustable percentage
The radius of gyration of table only needs to change blade holder adaptable therewith when needing to measure the blade of different model, general
Then no replacement is required for pedestal and gyro black assembly, and versatility is stronger, can save the manufacturing cost of measuring device.
See Fig. 1 to Fig. 5, blade holder includes the axially position block 9 being respectively arranged on Universal base 2, side locating piece
10 and sagittal plane locating piece 11, the vertical range D1 between the right side of axially position block 9 and the axis B of support shaft 5 is equal to vapour
Theoretical vertical range D between the blade root datum level M of turbine blade 4 and the centre of gyration line O of turbine blade 4, side positioning
It is horizontal location face that block 10, which is located at the right side of axially position block 9 and its top surface, and sagittal plane locating piece 11 is located at side locating piece 10
Front side and thereafter side be radial positioning face；Turbine blade 4 is in being placed horizontally on side locating piece 10, and bacterium shape leaf
The blade root side X and horizontal location face paste of root 1 are closed, and blade root datum level M is bonded with the right side of axially position block 9, and blade root is radial
Face Y and radial positioning face paste are closed, and the axis C of turbine blade 4 intersects with the axis B of support shaft 5；Blade holder further includes upper pressure
Plate 12 and side plate 13, top board 12 are fixedly installed on the top surface of axially position block 9 by screw 20, the right end of top board 12
There are the space for accommodating 1 end of bacterium shape blade root between the top surface of axially position block 9, the right end bottom surface of top board 12 can be pressed
On the tooth form plane Z of bacterium shape blade root 1, the longitudinal direction of bacterium shape blade root 1 is compressed to realize；Side plate 13 and sagittal plane locating piece
11 are located at the front and rear sides of bacterium shape blade root 1, and side plate 13 is installed on sagittal plane locating piece 11 by screw rod 14, screw rod 14
Across bacterium shape blade root 1 and one end is fixed on sagittal plane locating piece 11, and the other end passes through 13 rear enclosure of side plate and locking screw is housed
Mother 15, by adjusting lock nut 15, can make side plate 13 that bacterium shape blade root 1 is pressed on sagittal plane locating piece 11, thus real
Now the front and back of bacterium shape blade root 1 is clamped.Blade holder of the invention, it is fixed to the axial direction of bacterium shape blade root to be realized using axially position block
The radial positioning to bacterium shape blade root is realized using sagittal plane locating piece, so as to ensure that turbine blade clamping arrives always in position
Behind position, the centre of gyration line of turbine blade and the centre of gyration line of dial gauge are consistent, and guarantee detection accuracy.
For the ease of the assembling between blade holder and Universal base 2, Fig. 3 and Fig. 5 are seen, blade holder further comprises fixture
Bottom plate 16 is also equipped with fixture positioning plate 17 on Universal base 2 between blade holder and support shaft 5, clamp bottom board 16
Left side is equipped with protrusion 18, and the right side of fixture positioning plate 17 is equipped with groove, and protrusion 18 cooperates in insertion groove, and fixture
The left side of bottom plate 16 and the right side of fixture positioning plate 17 recline, and offer respectively on clamp bottom board 16 and Universal base 2 mutually
Corresponding waist-shaped hole 19, affixed by the bolt being installed in waist-shaped hole 19 between clamp bottom board 16 and Universal base 2 is one
Body, axially position block 9, side locating piece 10 and sagittal plane locating piece 11 are fixedly installed in respectively on clamp bottom board 16.By setting
Clamp bottom board is set, realizes and axially position block, side locating piece and sagittal plane locating piece three is integrated, make three locating pieces
Between relative positional relationship be always kept in a fixed state, position of three locating pieces on clamp bottom board is according to the vane size to be measured
Carry out in advance, then by clamp bottom board protrusion insertion fixture positioning plate on groove and make its left side lean against fixture positioning
On the right side of plate, the bolt in waist-shaped hole is screwed, blade holder can be installed in place, fast and easy and accurate positioning.
The lower process using apparatus of the present invention measurement bacterium shape blade root radius of gyration is detailed below: will be according to bacterium shape blade root
1 model selects corresponding blade holder, the clamp bottom board 16 of blade holder is fixed on Universal base 2 and by clamper
Positioning plate 17 makes blade root side X and the horizontal location face of bacterium shape blade root 1 then by 4 clamping of turbine blade in blade holder
Fitting, blade root datum level M are bonded with the right side of axially position block 9, and blade root sagittal plane Y and radial positioning face paste are closed, and are then made
Top board 12 and side plate 13 compress blade, and the centre of gyration line of turbine blade 4 is overlapped with the axis B of support shaft 5 at this time,
The position of dial framework 8 is adjusted, the measuring head of rotation dial gauge 3 leans against it on one of arc surface P of bacterium shape blade root 1, rotates
Rocker arm 6 observes the pointer beating scope of dial gauge 3, meets design requirement, that is, illustrate arc surface size qualification, otherwise unqualified.
E represents the track route of the measuring head of dial gauge 3 in Fig. 5.
Claims (9)
1. a kind of radius of gyration measuring device of turbine blade bacterial type blade root, it is characterised in that: it includes Universal base, percentage
Table, gyro black assembly and blade holder, the gyro black assembly and the blade holder are fixedly installed in respectively on the Universal base,
The dial gauge is installed on the gyro black assembly and can rotate around the centre of gyration of the gyro black assembly, and the blade holder is used
Keep the centre of gyration of the turbine blade consistent with the centre of gyration of the dial gauge in Set and Positioning turbine blade, it is described
The measuring head of dial gauge and the measured circular arc face contact of bacterium shape blade root.
2. a kind of radius of gyration measuring device of turbine blade bacterial type blade root according to claim 1, it is characterised in that:
The dial gauge is lever indicator.
3. a kind of radius of gyration measuring device of turbine blade bacterial type blade root according to claim 1, it is characterised in that:
The gyro black assembly includes support shaft and rocker arm, and the support shaft and the blade holder are respectively arranged in the Universal base
Left and right ends, the support shaft make perpendicular to the Universal base, one end rotational installation of the rocker arm in the support shaft
The rocker arm can be rotated around the axis horizontal of the support shaft, and the dial gauge is fixedly installed on the rocker arm by dial framework.
4. a kind of radius of gyration measuring device of turbine blade bacterial type blade root according to claim 3, it is characterised in that:
Long waist-shaped hole is provided on the rocker arm along its length, the upper end of the dial framework is installed on the long waist-shaped hole by bolt
Interior, the dial gauge is in be horizontally installed on the right side of the lower end of the dial framework.
5. a kind of radius of gyration measuring device of turbine blade bacterial type blade root according to claim 3, it is characterised in that:
The blade holder includes axially position block, side locating piece and the sagittal plane positioning being respectively arranged on the Universal base
Block, the vertical range between the right side of the axially position block and the axis of the support shaft are equal to the turbine blade
Theoretical vertical range between blade root datum level and the centre of gyration line of the turbine blade, the side locating piece are located at institute
Stating the right side of axially position block and its top surface is horizontal location face, before the sagittal plane locating piece is located at the side locating piece
Side and thereafter side are radial positioning face；The turbine blade is and described in being placed horizontally on the side locating piece
The blade root side of bacterium shape blade root and the horizontal location face paste are closed, the right side face paste of blade root datum level and the axially position block
It closes, blade root sagittal plane and the radial positioning face paste are closed, and the axis of the turbine blade intersects with the axis of the support shaft；
The blade holder further includes top board and side plate, and the top board is movably installed on the axially position block and can be downward
Compress the tooth form plane of the bacterium shape blade root；The side plate and the sagittal plane locating piece are located at the bacterium shape blade root
Front and rear sides, the side plate are movably installed on the sagittal plane locating piece and the bacterium shape blade root can be pressed in the diameter
To on the locating piece of face.
6. a kind of radius of gyration measuring device of turbine blade bacterial type blade root according to claim 5, it is characterised in that:
The top board is fixedly installed on the top surface of the axially position block by screw, the right end of the top board and the axial direction
There are the space for accommodating the bacterium shape blade root end between the top surface of locating piece, the right end bottom surface of the top board is pressed in institute
In the tooth form plane for stating bacterium shape blade root.
7. a kind of radius of gyration measuring device of turbine blade bacterial type blade root according to claim 5, it is characterised in that:
The side plate is installed on the sagittal plane locating piece by screw rod, and the screw rod passes through the bacterium shape blade root and one end is solid
It connects on the sagittal plane locating piece, the other end passes through the side plate rear enclosure and locking nut is housed.
8. a kind of radius of gyration measuring device of turbine blade bacterial type blade root according to claim 5, it is characterised in that:
The blade holder further includes clamp bottom board, is also pacified between the blade holder and the support shaft on the Universal base
Equipped with fixture positioning plate, the clamp bottom board is fixedly installed on the Universal base, is set on the left side of the clamp bottom board
There is protrusion, the right side of the fixture positioning plate is equipped with groove, and the male cooperation is inserted into the groove, and the fixture
The left side of bottom plate and the right side of the fixture positioning plate recline, the axially position block, the side locating piece and described
Sagittal plane locating piece is fixedly installed in respectively on the clamp bottom board.
9. a kind of radius of gyration measuring device of turbine blade bacterial type blade root according to claim 8, it is characterised in that:
Offer waist-shaped hole in correspondence with each other on the clamp bottom board and the Universal base respectively, the clamp bottom board and described general
It is fixed as one between pedestal by the bolt being installed in the waist-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505264.7A CN109357585A (en) | 2018-12-10 | 2018-12-10 | The radius of gyration measuring device of turbine blade bacterial type blade root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505264.7A CN109357585A (en) | 2018-12-10 | 2018-12-10 | The radius of gyration measuring device of turbine blade bacterial type blade root |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109357585A true CN109357585A (en) | 2019-02-19 |
Family
ID=65330283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811505264.7A Pending CN109357585A (en) | 2018-12-10 | 2018-12-10 | The radius of gyration measuring device of turbine blade bacterial type blade root |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109357585A (en) |
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|---|---|---|---|---|
| CN201569402U (en) * | 2009-11-03 | 2010-09-01 | 南通中能机械制造有限公司 | Measuring tool for assembly groove arc of guide vane |
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| CN102179552A (en) * | 2011-04-07 | 2011-09-14 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
| CN202006375U (en) * | 2011-04-07 | 2011-10-12 | 无锡透平叶片有限公司 | Improved clamp for bacterial type blade root tooth form machining |
| CN202719934U (en) * | 2012-08-23 | 2013-02-06 | 哈尔滨汽轮机厂有限责任公司 | Detecting measuring tool for arc locating slot of turbine blade |
| CN103212742A (en) * | 2013-04-02 | 2013-07-24 | 哈尔滨汽轮机厂有限责任公司 | Milling tool for steam turbine bacterial-type root blades |
| CN106624856A (en) * | 2016-12-28 | 2017-05-10 | 无锡透平叶片有限公司 | Clamping device for processing mushroom-shaped blade having Z-shaped blade shroud |
| CN207132836U (en) * | 2017-09-13 | 2018-03-23 | 杭州亘元汽轮机叶片有限公司 | Steam turbine blade blade root arc measuring device |
| CN107843174A (en) * | 2017-12-04 | 2018-03-27 | 无锡透平叶片有限公司 | The measuring tool of angle incline position is split for measuring the bacterial type blade root back of the body |
| CN209181664U (en) * | 2018-12-10 | 2019-07-30 | 无锡透平叶片有限公司 | A kind of radius of gyration measuring device of turbine blade bacterial type blade root |
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2018
- 2018-12-10 CN CN201811505264.7A patent/CN109357585A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201569402U (en) * | 2009-11-03 | 2010-09-01 | 南通中能机械制造有限公司 | Measuring tool for assembly groove arc of guide vane |
| CN102152260A (en) * | 2011-03-03 | 2011-08-17 | 无锡市艾尔福叶片有限公司 | Clamp for repair of bacterial-type blade-root turbine blade by vice |
| CN102179552A (en) * | 2011-04-07 | 2011-09-14 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
| CN202006375U (en) * | 2011-04-07 | 2011-10-12 | 无锡透平叶片有限公司 | Improved clamp for bacterial type blade root tooth form machining |
| CN202719934U (en) * | 2012-08-23 | 2013-02-06 | 哈尔滨汽轮机厂有限责任公司 | Detecting measuring tool for arc locating slot of turbine blade |
| CN103212742A (en) * | 2013-04-02 | 2013-07-24 | 哈尔滨汽轮机厂有限责任公司 | Milling tool for steam turbine bacterial-type root blades |
| CN106624856A (en) * | 2016-12-28 | 2017-05-10 | 无锡透平叶片有限公司 | Clamping device for processing mushroom-shaped blade having Z-shaped blade shroud |
| CN207132836U (en) * | 2017-09-13 | 2018-03-23 | 杭州亘元汽轮机叶片有限公司 | Steam turbine blade blade root arc measuring device |
| CN107843174A (en) * | 2017-12-04 | 2018-03-27 | 无锡透平叶片有限公司 | The measuring tool of angle incline position is split for measuring the bacterial type blade root back of the body |
| CN209181664U (en) * | 2018-12-10 | 2019-07-30 | 无锡透平叶片有限公司 | A kind of radius of gyration measuring device of turbine blade bacterial type blade root |
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