CN206448848U - Gas turbine rotor obturages ring adjective-centre structure - Google Patents
Gas turbine rotor obturages ring adjective-centre structure Download PDFInfo
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- CN206448848U CN206448848U CN201621406443.1U CN201621406443U CN206448848U CN 206448848 U CN206448848 U CN 206448848U CN 201621406443 U CN201621406443 U CN 201621406443U CN 206448848 U CN206448848 U CN 206448848U
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- gas turbine
- adjective
- turbine rotor
- obturaging
- casing
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- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 33
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Ring adjective-centre structure is obturaged the utility model discloses a kind of gas turbine rotor, including is sheathed on and is used to carrying out the gas in gas turbine sealed annular on the working-blade of gas turbine rotor and obturages part, be arranged on and obturage the outside of part and be used to obturaging part and be locked on the casing of gas turbine so as to multiple locking pieces that the installations side surface and casing surface of obturaging part are brought into close contact and be arranged on casing and obturage on part for being adjusted to the axial location for obturaging part so that rotor axis are with obturaging multiple positioning bushings that axis of workpiece coincides.The gas turbine rotor that the utility model is provided obturages ring adjective-centre structure, and it is aspectant just to contacting to obturage part and casing by annular, and it is vertical with functional surfaces to make to obturage the eccentric power of part, reliability of feeling relieved height；It is not high to casing and the dimension precision requirement for obturaging part although adding positioning bushing, without the Precision Machining of high cost, the reduction of comprehensive process cost.
Description
Technical field
The utility model is related to gas turbine field, especially, is related to a kind of gas turbine rotor and obturages ring adjective-centre structure.
Background technology
The outer ring of the compressor rotor of gas turbine and the working-blade of turbine rotor must be provided for air or
The annular of gas sealing obturages part.As depicted in figs. 1 and 2, this is obturaged part 10 and is fixed on casing part.And compressor or
Turbine rotor 500 is then by the bearings in casing part top chock 600.In order to ensure sealing effectiveness, it is necessary to protect
Card rotor axis 300 are overlapped with obturaging axis of workpiece 400, while needing to ensure the blade tip and envelope of the working-blade 200 of rotor 500
Gap K between tight part 10 is in acceptability limit.Existing structure rotor axis with obturage axis of workpiece overlap requirement needs
Control gap K indirectly to ensure in gas turbine assembling process.After K adjustment in gap is qualified, by tightening several (be no less than
4, generally 8~40) locking piece (such as mounting screw) 20 makes to obturage installation side surface and the table of casing 100 of part 10
Face is brought into close contact, so that the frictional force and micro-strain between leading surface and face keep obturaging the position of part 10.
This adjective-centre structure is unreliable, is vulnerable to the influence such as vibration, thermal stress and gets loose and misplace.Simultaneously because material
Thermal expansion scrambling, it is impossible to ensure rotor axis and to obturage the weight of axis of workpiece (under the condition of high temperature) in the operating condition
Conjunction property.Therefore, the sealing effectiveness of part is obturaged in influence.In addition, this structure is to the screwed hole on casing and obturages on part
Screw hole position accuracy demand it is high, so as to cause processing cost higher.Especially, in this kind of larger-size part of casing
The hole of upper processing multiple (being no less than 4, generally 8~40) high positional precision is difficult to realize.
Therefore, the compressor rotor adjective-centre structure of existing gas turbine can not ensure that obturage part sends out in the operating condition
Raw skew, is a technical problem urgently to be resolved hurrily.
Utility model content
The utility model purpose is that providing a kind of gas turbine rotor obturages ring adjective-centre structure, to solve existing combustion gas
The compressor rotor adjective-centre structure of turbine can not ensure to obturage the technical problem that part shifts in the operating condition.
To achieve the above object, the technical solution adopted in the utility model is as follows：
The utility model provides a kind of gas turbine rotor and obturages ring adjective-centre structure, including is sheathed on gas turbine rotor
It is used to obturage the gas progress sealed annular in gas turbine part on working-blade, is arranged on the outside use for obturaging part
It is locked in part will be obturaged on the casing of gas turbine so as to obturage the installation side surface of part and casing surface is brought into close contact
Multiple locking pieces and be arranged on casing and obturage and be used to be adjusted the axial location of obturaging part so as to turn on part
Sub- axis is with obturaging multiple positioning bushings that axis of workpiece coincides.
Further, obturage circumferentially offered on the outer ring of part be correspondingly arranged on multiple open slots, casing with it is multiple
The corresponding multiple positioning holes of open slot, positioning bushing includes the Fixed Division being fixed together with positioning hole and solid with Fixed Division
Surely it is connected to be finely adjusted the position for obturaging part so that rotor axis are with obturaging the adjustment portion that the axis of part coincides.
Further, multiple open slots are radial equal on the outer ring for obturaging part centered on the axle center for obturaging part
Even arrangement.
Further, multiple positioning bushings are arranged in pairs on open slot.
Further, Fixed Division is cylindrical end, and adjustment portion is square end.
Further, be provided with the counter sink being engaged with Fixed Division at the opening of positioning hole, Fixed Division and counter sink it
Between use interference fits.
Further, open slot is square aperture groove, and adjustment portion correspondence is connected on open slot.
Further, positioning bushing also includes being arranged on the center of positioning bushing and is used for and that locking piece matches is logical
Hole.
Further, gas turbine rotor obturages ring adjective-centre structure, in addition to is crimped on the both sides of the edge of open slot
Pressing plate, locking piece sequentially passes through pressing plate, positioning bushing and positioning hole and will obturage part and is fixed on casing.
Further, gas turbine rotor obturages ring adjective-centre structure, in addition to is arranged between pressing plate and open slot and is used for
Reduce the packing ring of pressing plate deformation.
The utility model has the advantages that：
The gas turbine rotor that the utility model is provided obturages ring adjective-centre structure, by being arranged on casing and obturaging on part
Positioning bushing obturage the position of part to change, so as to ensure that obturage part does not shift in the operating condition.This practicality
The gas turbine rotor of new offer obturages ring adjective-centre structure, and it is aspectant just to contacting with casing to obturage part by annular,
Make the power for obturaging part bias vertical with functional surfaces, centering reliability height；Although positioning bushing is added, to casing and envelope
The dimension precision requirement of tight part is not high, without the Precision Machining of high cost, the reduction of comprehensive process cost.
In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is the structural representation that existing gas turbine rotor obturages ring adjective-centre structure；
Fig. 2 is the sectional view along A-A faces in Fig. 1；
Fig. 3 is the structural representation that the utility model gas turbine rotor obturages ring adjective-centre structure preferred embodiment；
Fig. 4 is the enlarged diagram of casing in Fig. 3；
Fig. 5 is the cooperation schematic diagram that part and positioning bushing preferred embodiment are obturaged in Fig. 3；
Fig. 6 is the enlarged diagram of I parts in Fig. 5；
Fig. 7 is close-up schematic view in Fig. 5；
Fig. 8 is the half-section diagram of positioning bushing in Fig. 3；
Fig. 9 is the top view of positioning bushing in Fig. 3.
Drawing reference numeral explanation：
100th, casing；200th, working-blade；300th, rotor axis；400th, axis of workpiece is obturaged；500th, rotor；10th, obturage
Part；20th, locking piece；30th, bushing is positioned；11st, open slot；31st, Fixed Division；32nd, adjustment portion；33rd, through hole；40th, pressing plate；110、
Positioning hole；111st, counter sink.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
Reference picture 3, preferred embodiment of the present utility model obturages ring adjective-centre structure there is provided a kind of gas turbine rotor, bag
Include is used to obturage part to the sealed annular of gas progress in gas turbine on the working-blade for be sheathed on gas turbine rotor
10th, it is arranged on and obturages the outside of part 10 and be used to obturage part 10 and be locked on the casing 100 of gas turbine so as to obturage zero
Multiple locking pieces 20 and be arranged on casing 100 and obturage part that the installation side surface of part 10 is brought into close contact with casing surface
Be used to be adjusted the axial location of obturaging part 10 on 10 so that rotor axis with obturage that axis of workpiece coincides it is multiple
Position bushing 30.Wherein, locking piece 20 can be trip bolt, or bolt is not limited herein.Position the two of bushing 30
End is located at respectively obturages in part 10 and casing 100, the position of part 10 is obturaged for adjusting, so as to improve its reliability of positioning
And the uniformity felt relieved under various regimes.
The gas turbine rotor that the present embodiment is provided obturages ring adjective-centre structure, by being arranged on casing and obturaging on part
Positioning bushing obturages the position of part to change, so as to ensure that obturage part does not shift in the operating condition.This practicality is new
The gas turbine rotor that type is provided obturages ring adjective-centre structure, and it is aspectant just to contacting with casing to obturage part by annular, makes
Obturage the eccentric power of part vertical with functional surfaces, centering reliability is high；Although adding positioning bushing, to casing and obturaging
The dimension precision requirement of part is not high, without the Precision Machining of high cost, the reduction of comprehensive process cost.
Preferably, as shown in Figures 4 to 6, the gas turbine rotor that the present embodiment is provided obturages ring adjective-centre structure, obturages zero
Circumferentially offered on the outer ring of part 10 be correspondingly arranged on multiple open slots 11, casing 100 it is corresponding with multiple open slots 11
Multiple positioning holes 110.As shown in Figure 8 and Figure 9, positioning bushing 30 include the Fixed Division 31 that is fixed together with positioning hole 110 with
And be fixedly connected with Fixed Division 31 for being finely adjusted to the position for obturaging part 10 so that rotor axis are with obturaging axis of workpiece
The adjustment portion 32 coincided.Wherein, positioning hole 110 can be to be engaged screwed hole with trip bolt.Fixed Division 31 is cylindrical end,
Adjustment portion 32 is square end.The counter sink 111 being engaged with Fixed Division 31, Fixed Division 31 are provided with the opening of positioning hole 110
Interference fits are used between counter sink 111.Open slot 11 is square aperture groove, and the correspondence of adjustment portion 32 is connected to open slot 11
On.The center that positioning bushing 30 also includes being arranged on positioning bushing 30 is used for the through hole 33 matched with locking piece 20.
In the present embodiment, before assembling, the size L2 ratios of the square-section of positioning bushing 30 obturage the size L1 of the open slot 11 of part 10
Greatly.In assembling, load a positioning bushing 30 in each counter sink 111 of casing 100 first, have 8.Then pass through
Reconditioning adjusts square-section the size L2 and L3 of 8 equally distributed positioning bushings 30, you can to change the position for obturaging part 10
Put, so as to improve its reliability of positioning and the uniformity felt relieved under various regimes.
Alternatively, as shown in figure 5 and figure 7, the gas turbine rotor that the present embodiment is provided obturages ring adjective-centre structure, Duo Gekai
Mouthful groove 11 is radial on the outer ring for obturaging part 10 centered on obturaging the axle center of part 10 is evenly arranged.In the present embodiment
In, 8 positioning bushings 30 (numbering is 0~No. 7) load in the counter sink 111 of casing 100 in pairs, adjustment 0, No. 4 positioning bushings
30 size L3 can control to obturage part 10 in the position of X-direction；And adjustment 2, the size L3 of No. 6 positioning bushings 30 then may be used
To control to obturage part 10 in the position of Y direction.When obturaging the generation thermal expansion of part 10, its direction expanded and size L3
Direction it is vertical, its will not be made to produce change, part 10 is obturaged under the condition of high temperature (working condition) so as to be effectively ensured
Centering is required.Only need 4 positioning bushings 30 just to realize certralizing ability in theory, however, in the present embodiment, increase by 1,3,
5th, No. 7 positioning bushings 30 realize Planar Mechanisms, to increase the reliability of centering；Simultaneously increase obturage after the expanded by heating of part 10 X,
The uniformity felt relieved in all directions beyond Y.Quantity on positioning bushing 30, more than 4 in theory, 6~12
Between preferably, do not limit herein, within the protection domain of this patent.
Preferably, as shown in figure 5 and figure 7, the gas turbine rotor that the present embodiment is provided obturages ring adjective-centre structure, in addition to
The pressing plate 40 on the both sides of the edge of open slot 11 is crimped on, locking piece 20 sequentially passes through pressing plate 40, positioning bushing 30 and positioning hole
110 and part 10 will be obturaged it will be fixed on casing 100.In the present embodiment, will obturage axis of workpiece adjust to rotor axis
Pressing plate 40 is reloaded into after coincidence, is finally fastened using screw.
Further, the gas turbine rotor that the present embodiment is provided obturages ring adjective-centre structure, to reduce pressing plate 40 in screw
The deformation at place, gas turbine rotor, which obturages ring adjective-centre structure, also to be included being arranged between pressing plate 40 and open slot 11 for reducing pressure
The packing ring (not shown) that plate 40 is deformed.
The gas turbine rotor that the present embodiment is provided obturages ring adjective-centre structure, should have in Gas Turbine Power turbine rotor
Obturage in ring, verified by engine test, with good certralizing ability.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of gas turbine rotor obturages ring adjective-centre structure, it is characterised in that the work including being sheathed on gas turbine rotor
It is used to carrying out the gas in gas turbine sealed annular on blade to obturage part (10), be arranged on and described obturage part (10)
Outside be used for the part (10) of obturaging is locked on the casing of gas turbine so that the installation for obturaging part (10)
Multiple locking pieces (20) that side surface and casing surface are brought into close contact and it is arranged on the casing and described obturages part (10)
It is upper to be used to be adjusted the axial location for obturaging part (10) so that rotor axis are with obturaging what axis of workpiece coincided
Multiple positioning bushings (30).
2. gas turbine rotor according to claim 1 obturages ring adjective-centre structure, it is characterised in that
Circumferentially offer and be correspondingly arranged on multiple open slots (11), the casing and institute on the outer ring for obturaging part (10)
The corresponding multiple positioning holes of multiple open slots (11) are stated, the positioning bushing (30) includes being fixed together with the positioning hole
Fixed Division (31) and be fixedly connected with the Fixed Division (31) for being finely adjusted to the position for obturaging part (10)
So that the rotor axis obturage the adjustment portion (32) that axis of workpiece coincides with described.
3. gas turbine rotor according to claim 2 obturages ring adjective-centre structure, it is characterised in that
Multiple open slots (11) are centered on the axle center for obturaging part (10) in the outer ring for obturaging part (10)
It is above radial to be evenly arranged.
4. gas turbine rotor according to claim 3 obturages ring adjective-centre structure, it is characterised in that
Multiple positioning bushings (30) are arranged in pairs on the open slot (11).
5. gas turbine rotor according to claim 2 obturages ring adjective-centre structure, it is characterised in that
The Fixed Division (31) is cylindrical end, and the adjustment portion (32) is square end.
6. gas turbine rotor according to claim 2 obturages ring adjective-centre structure, it is characterised in that
The counter sink being engaged with the Fixed Division (31), the Fixed Division (31) and institute are provided with the opening of the positioning hole
State and interference fits are used between counter sink.
7. gas turbine rotor according to claim 5 obturages ring adjective-centre structure, it is characterised in that
The open slot (11) is square aperture groove, and adjustment portion (32) correspondence is connected on the open slot (11).
8. gas turbine rotor according to claim 2 obturages ring adjective-centre structure, it is characterised in that
The center that the positioning bushing (30) also includes being arranged on the positioning bushing (30) is used for and the locking piece
(20) through hole (33) matched.
9. gas turbine rotor according to claim 8 obturages ring adjective-centre structure, it is characterised in that
Also include the pressing plate (40) being crimped on the both sides of the edge of the open slot (11), the locking piece (20) sequentially passes through institute
State pressing plate (40), the positioning bushing (30) and the positioning hole and the part (10) of obturaging is fixed on the casing.
10. gas turbine rotor according to claim 9 obturages ring adjective-centre structure, it is characterised in that
Also include being arranged on and be used for the pad for reducing the pressing plate (40) deformation between the pressing plate (40) and the open slot (11)
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406443.1U CN206448848U (en) | 2016-12-21 | 2016-12-21 | Gas turbine rotor obturages ring adjective-centre structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406443.1U CN206448848U (en) | 2016-12-21 | 2016-12-21 | Gas turbine rotor obturages ring adjective-centre structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206448848U true CN206448848U (en) | 2017-08-29 |
Family
ID=59672738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621406443.1U Active CN206448848U (en) | 2016-12-21 | 2016-12-21 | Gas turbine rotor obturages ring adjective-centre structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206448848U (en) |
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2016
- 2016-12-21 CN CN201621406443.1U patent/CN206448848U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
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. |