CN206626020U - Stator blade section and the axial flow fluid machinery for possessing the stator blade section - Google Patents
Stator blade section and the axial flow fluid machinery for possessing the stator blade section Download PDFInfo
- Publication number
- CN206626020U CN206626020U CN201590000066.9U CN201590000066U CN206626020U CN 206626020 U CN206626020 U CN 206626020U CN 201590000066 U CN201590000066 U CN 201590000066U CN 206626020 U CN206626020 U CN 206626020U
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- Prior art keywords
- stator blade
- pin
- inserting hole
- groove
- blade section
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
Abstract
The utility model provides a kind of stator blade section and possesses the axial flow fluid machinery of the stator blade section.Stator blade section of the present utility model possesses：Multiple stator blades (20)；Limiting part (40), engaged by the part of the radially inner side with multiple stator blades (20) to limit moving radially for multiple stator blades (20)；And pin (60), the circumference (Dc) that end stator blade (20a) is limited relative to limiting part (40) are mobile.Pin inserting hole (49h) formed with supply and marketing (60) insert on limiting part (40), the cotter way (29) that the leading section formed with supply and marketing (60) enters on end stator blade (20a).Pin (60) has：Insertion portion (61), it is inserted through in pin inserting hole (49h)；Groove insertion section (62), is formed at one end of insertion portion (61), and enters in cotter way (29)；Flange part (63), the other end of insertion portion (61) is formed at, and the size in the direction vertical with bearing pin (Ap) is more than the internal diameter size of pin inserting hole (49h).A part for flange part (63) is welded in the surface of limiting part (40).
Description
Technical field
It the utility model is related to a kind of stator blade section of the part for forming stator blade loop and possess the stator blade section
Axial flow fluid machinery.
Background technology
Gas turbine possesses to be generated the compressor of compressed air, mixes fuel and compressed air by compressing extraneous air
Combining combustion is to generate the burner of burning gases and by burning gases and the turbine that drives.
Compressor and turbine are axial flow fluid machinery, possess the rotor rotated centered on rotation axis and cover
Cover the shell of the rotor.Rotor has along the axially extending armature spindle parallel with rotation axis and is fixed on the armature spindle
Periphery and the multiple movable vane lamellas arranged in the axial direction.Fixed in the position of the upstream side of each movable vane lamella of the inner circumferential side of shell
There is stator blade lamella.1 stator blade lamella forms the stator blade loop that multiple stator blades are arranged and are interconnected in the circumferential.In view of group
The convenience of dress, the stator blade loop are divided in the circumferential.Divided each several part is commonly known as stator blade in the circumference
Section.The stator blade section by being linked to form in the circumferential by multiple stator blades.
For example, the stator blade section described in following patent document 1 has multiple stator blades, for limiting multiple stator blades
Towards inner barrel the support moved radially and the inner barrel for fixing stator blade on support cylindrical shape pin.
Formed with the pin inserting hole run through from radially inner side to radial outside on support.Formed with from radially on the inner barrel of stator blade
The pin-and-hole of interior lateral radial outside depression.Pin is entered in the pin inserting hole of support and the pin-and-hole of inner barrel.
Thinking to enter the pin inserting hole of support and the anticreep of the pin in the pin-and-hole of inner barrel can be by any one side
Method is realized.Method of the anti-drop square rule described in if any following patent document 2 as this pin.In this method, by pin
After the hole of insertion part, the part protruded from hole in pin is welded on part.
Citation
Patent document
Patent document 1：Japanese Patent Publication 2007-198293 publications (Fig. 2)
Patent document 2：Japanese Patent Publication 05-000903 publications (Fig. 3)
Utility model content
The utility model problem to be solved
In stator blade section as above, it is desirable to when carrying out the anticreep relative to the pin of support (limiting part), mitigate quiet
The burden of the assembly working of leaf segments.
Here, the utility model is conceived to above mentioned problem, its object is to provide one kind to prevent from limiting stator blade
The pin moved relative to limiting part comes off, and and can enough mitigates the stator blade section of the burden of assembly working and possesses the stator blade
The axial flow fluid machinery of piece section.
For solving the method for problem
As the stator blade section of a mode of the utility model for solving the above problems, it is formed centered on axis
And a part for the stator blade loop of ring-type is formed, the stator blade section possesses, multiple stator blades, along relative to the axis
Circumferential array；Limiting part, by the part of the radially inner side with the axis relative to multiple stator blades engage come
Limit moving radially for multiple stator blades；And pin, relative to the limiting part, limit and be located in multiple stator blades
The circumferential movement of the end stator blade at the circumferential both ends, in the limiting part with the end stator blade card
That closes is formed in part with the cylindrical pin inserting hole for pin insert, formed with for being inserted through institute on the end stator blade
The cotter way that the leading section of the pin of the pin inserting hole of limiting part enters is stated, the pin has：Insertion portion, using bearing pin as
It is centrally formed cylinder and is inserted through the pin inserting hole；Groove insertion section, the one end being formed in the both ends of the insertion portion, and
Enter in the cotter way；And flange part, the other end being formed in the both ends of the insertion portion, and it is vertical with the bearing pin
The size in direction is more than the internal diameter size of the pin inserting hole of cylinder, and the insertion portion of the pin is inserted in the pin and inserted
In through hole, and the groove insertion section of the pin enter the cotter way in the state of, the flange part of the pin is extremely
A few part is welded on the peripheral part of the i.e. described pin inserting hole in surface of the limiting part.
In order to repair form stator blade section stator blade and from limiting part dismantle multiple stator blades when, it is necessary to remove pin
Welding portion between limiting part.A part for limiting part can be also removed when removing the welding portion.The stator blade
In section, because the welding portion between pin and limiting part is located remotely from the position of the pin inserting hole of limiting part, therefore limit
Pin inserting hole is not included in the part removed in part processed.Therefore, in the stator blade section, stator blade and then group are repaired
When filling stator blade section, without carrying out the patch work of pin inserting hole, it becomes possible to mitigate the negative of the assembly working of stator blade section
Load.
Wherein, can be on the limiting part formed with being connected with the pin inserting hole in the stator blade section
And the insert direction depression of the pin inserting hole is inserted through from the surface of the limiting part to the pin, and can accommodate described convex
The flange of edge accommodates recess, and the flange accommodates a part of the bottom surface of recess as the surface of the limiting part, makes
The flange part of the pin is welded in the bottom surface.
In the stator blade section, the flange part not being inserted through in the pin inserting hole of limiting part in pin is contained in limiting unit
The flange of part is accommodated in recess, and the outer surface that recess periphery will not be accommodated from the flange of limiting part protrudes.Therefore, it is quiet at this
In leaf segments, the resistance in the fluid of the outside of limiting part flowing can be reduced.
Also, in stator blade section described in any of the above, the cotter way has in the circumferential direction opposite each other one
To flat groove side, it is separated with this, the groove insertion section of the pin has a pair of direction relative toward each other
Flat groove contact surface, and a groove contact surface in a pair of groove contact surfaces and a groove side in the pair of groove side
Plane-plane contact, another groove contact surface in a pair of groove contact surfaces and another groove side face in the pair of groove side
Contact.
In the pin of the stator blade section, the flat groove of its flat groove contact surface and cotter way contacts by side.Therefore, should
In pin, by being included in pin with the part in the face of groove contacts side surfaces to bear the load of the cutting direction from end stator blade.Cause
This, in the stator blade section, it is possible to increase sell the intensity of the load relative to the cutting direction from end stator blade.
Also, can also be in institute in the stator blade section that the groove insertion section has a pair of groove contact surfaces
State and the oriented Directional Extension vertical with a pair of groove contact surfaces is formed in the flange part of pin, and side relative toward each other
To a pair of flat first sides.
In the stator blade section, if being inserted pins into a manner of a pair of flange part flat first sides are radially oriented
In pin inserting hole and cotter way, then the propagation direction of the propagation direction of the groove side of cotter way and the groove contact surface of bracket pins can become one
Cause.Therefore, in the stator blade section, the groove insertion section of pin can be easily inserted into the pin of end stator blade.
Also, can also be in the institute of the pin in the stator blade section of the flange part formed with first side
State on flange part formed with the second side being connected with each side in a pair of flat first sides, and the flange
The second side in portion is welded on the peripheral part of the i.e. described pin inserting hole in surface of the limiting part.
In stator blade section described in any of the above, the outside dimension of the cylindrical insertion portion of the pin with it is described
The internal diameter size of the cylindrical pin inserting hole of limiting part can also have mutually chimeric size relationship.
It is actual if the cylindrical insertion portion of pin is inserted through in the pin inserting hole of limiting part in the stator blade section
The whole outer peripheral face of upper insertion portion is close to the inner surface of pin inserting hole substantially.Therefore, being mostly used in makes pin relative to limitation
The power that part is relatively moved to the direction vertical with bearing pin, it can be held by the inner surface of the pin inserting hole of limiting part
By.Therefore, in the stator blade section, the welding portion between pin and limiting part is hardly by for making pin relative to limiting unit
The power that part is relatively moved to the direction vertical with bearing pin.Therefore, in the stator blade section, pin and limiting part can be suppressed
Between welding portion be damaged.
In stator blade section described in any of the above, the flange part of the pin and the surface of the limiting part are institute
Stating the welding between the part on the periphery of pin inserting hole can also be realized by fillet welding.
Also, stator blade section described in any of the above except with the axis relative to multiple stator blades
Radially inner side part engaging the limiting part inner side limiting part outside, can also possess by with relative to multiple
The part engaging of the radial outside of the axis of the stator blade and limit multiple stator blades and moved radially to described
Outside limiting part.
As the axial flow fluid machinery of a mode of the utility model for solving the above problems, possess：
The stator blade loop, it has stator blade section described in multiple any of the above；Shell, is cylindrical in shape and the stator blade
Ring is installed on inner circumferential side；And rotor, rotated in the shell centered on the axis.
The axial flow fluid machinery possesses stator blade section discussed above, therefore can mitigate the group of the stator blade section
Fill the burden of work.
Utility model effect
According to a mode of the present utility model, can either prevent from limiting the de- of the pin that stator blade moves relative to limiting part
Fall, and can enough mitigates the burden of assembly working.
Brief description of the drawings
Fig. 1 is the cross-sectional side elevational view of the major part of the gas turbine of the embodiment involved by the utility model.
Fig. 2 is the front view of the stator blade loop of the embodiment involved by the utility model.
Fig. 3 is the stereogram of the stator blade section of the embodiment involved by the utility model.
Fig. 4 is Fig. 3 IV-IV line sectional views.
Fig. 5 is Fig. 3 V-V line sectional views.
Fig. 6 is the exploded perspective view of the major part of the stator blade section of the embodiment involved by the utility model.
Fig. 7 is the stereogram of the bracket pins of the embodiment involved by the utility model.
Fig. 8 is the sectional view on the bracket pins periphery of the stator blade section of the embodiment involved by the utility model.
Fig. 9 is Fig. 8 IX-IX line sectional views.
Figure 10 is the explanation figure for representing the part that the bracket pins in comparative example are further applied load.
Figure 11 is the explanation figure for the bracket pins for representing dismounting comparative example.
Figure 12 is the explanation for representing the part that the bracket pins in the embodiment involved by the utility model are further applied load
Figure.
Figure 13 is the explanation figure for the bracket pins for representing the embodiment involved by dismounting the utility model.
Embodiment
Hereinafter, one embodiment of the axial flow fluid machinery involved by the utility model is carried out with reference to 1~Figure 13 of figure detailed
Describe in detail bright.
As shown in figure 1, gas turbine possesses：Compressor 1, compressed air is generated by compressing extraneous air；Multiple combustions
Burner 6, the fuel from fuel supply source and compressed air are mixed into combining combustion, to generate burning gases；And turbine 7, pass through
Burning gases drive.
Compressor 1 and turbine 7 are axial flow fluid machinery, have the rotor 2,8 that is rotated centered on rotation axis Ar and
Cover the shell 5,9 of the rotor 2,8.Compressor drum 2 and turbine rotor 8 are rotated centered on identical rotation axis Ar, because
This is connected to each other.Multiple burners 6 are fixed in turbine case 9.In addition, rotation axis Ar bearing of trend is referred to as axle below
To Da.Also, the radial direction relative to rotation axis Ar is referred to as radial direction Dr, by the circumferential Dc relative to rotation axis Ar referred to as
For circumferential Dc.Also, on axial Da, the side of compressor 1 is referred to as upstream side on the basis of turbine 7, on the basis of compressor 1
And the side of turbine 7 is referred to as downstream.
Compressor drum 2 has the armature spindle 3 extended on axial Da and is fixed on the periphery of the armature spindle 3 and in axial direction
The multiple movable vane lamellas 4 arranged on Da.Each movable vane lamella 4 is with the periphery for being arranged on circumferential Dc and being fixed on armature spindle 3
Multiple movable vane pieces.Stator blade loop 10 is fixed with the position of the upstream side of each movable vane lamella 4 of the inner circumferential side of compressor case 5.
As shown in Fig. 21 stator blade loop 10 is by multiple annular arrangements of stator blade 20 and interconnected forms.In view of group
The convenience of dress, the stator blade loop 10 are divided on circumferential Dc.Divided each several part forms stator blade on the circumferential Dc
Section 11.The stator blade section 11 passes through by a part of multiple stator blades 20 in the multiple stator blades 20 for forming stator blade loop 10
Circumferentially Dc is arranged and is interconnected and forms.
As shown in figure 3, stator blade section 11 has：Circumferentially multiple stator blades 20 of Dc arrangements；For multiple stator blades 20
Radially inner side part installation support (inner side limiting part) 40；And for multiple stator blades 20 radial outside part that
The linking belt (outside limiting part) 50 of this installation.In the multiple stator blades 20 for forming stator blade section 11, positioned at circumferential Dc's
The stator blade 20 at both ends forms end stator blade 20a, quiet between the formation of stator blade 20 end between 2 end stator blade 20a
Blade 20b.
As shown in figure 4, end between stator blade 20b have radially Dr extension blade body 21, be arranged at blade body 21
Radially inner side inner barrel 22 and be arranged at blade body 21 radial outside outer barrel 32.
Inner barrel 22 has：The sleeve body 23 of tabular, it is arranged at the radially inner side of blade body 21, and in circumference
Extended on Dc；Upstream side leg 24, it extends from the upstream part of sleeve body 23 to radially inner side；Upstream lateral edge portion
25, it extends to the upstream side from the radially inner side end of the upstream side leg 24；Downstream leg 26, it is under sleeve body 23
Side part is swum to radially inner side to extend；And downstream lateral edge portion 27, its from the radially inner side end of the downstream leg 26 downstream
Side extends.Upstream side slot 28u formed with downstream side depression between sleeve body 23 and upstream lateral edge portion 25.And
And formed with the downstream slot 28d being recessed to the upstream side between sleeve body 23 and downstream lateral edge portion 27.These engagings
Groove 28u, 28d trench bottom are formed by leg 24,26.
Outer barrel 32 has：The sleeve body 33 of tabular, it is arranged at the radial outside of blade body 21, and in circumference
Extended on Dc；Upstream side leg 34；It extends from the upstream part of sleeve body 33 to radial outside；Upstream lateral edge portion
35, it extends to the upstream side from the radial outside end of the upstream side leg 34；Downstream leg 36, it is under sleeve body 33
Side part is swum to radial outside to extend；And downstream lateral edge portion 37, its from the radial outside end of the downstream leg 36 downstream
Side extends.Formed with the depression from radial outside to radially inner side and in circumferential Dc between upstream side leg 34 and downstream leg 36
The trough of belt 31 of upper extension.The trench bottom of the trough of belt 31 is formed by sleeve body 33.The circumferential Dc of linking belt 50 part is entered
Enter into the trough of belt 31.
As shown in figure 5, end stator blade 20a also has：Blade body 21, radially Dr extends for it；Inner barrel 22a,
It is arranged at the radially inner side of blade body 21；And outer barrel 32a, it is arranged at the radial outside of blade body 21.
But end stator blade 20a inner barrel 22a and outer barrel 32a and end between stator blade 20b inner barrel
22a and outer barrel 32a are slightly different.
End stator blade 20a outer barrel 32a is in addition to the structure of stator blade 20b outer barrel 32 between end, also
With the upstream side flange portion 38 from the downstream side extension of the radial outside end of the upstream side leg 34 and from the downstream leg
The downstream side flange portion 39 that 36 radial outside end extends to the upstream side.Upstream side flange portion 38 and downstream side flange portion 39 with
The radial outer side of the linking belt 50 entered in trough of belt 31 is opposed, and undertakes the phase of linking belt 50 that limitation is entered in trough of belt 31
The effect relatively moved for end stator blade 20a to radial outside.
Also, formed with from radial outside to radially inner side in the trough of belt 31 on end stator blade 20a outer barrel 32a
The cylindrical pin-and-hole 31h of depression.
As shown in Fig. 5~Fig. 7, end stator blade 20a inner barrel 22a is except the inner barrel of stator blade 20b between end
Outside 22 structure, lateral edge portion 25a is also formed with cotter way 29 at its upstream.The cotter way 29 passes through upstream lateral edge portion 25a's
From upstream side, downstream side is cut open and formed a part.The cotter way 29 passes through in a pair mutually opposing circumferential Dc of flat grooves
Side 29a is separated.
As shown in Fig. 3~Fig. 5, linking belt 50 is the plate of the rectangular shape extended on circumferential Dc.The axle of the linking belt 50
It is corresponding with the axial Da of trough of belt 31 width to Da width, to enter in outer barrel 32,32a trough of belt 31.And
And in the state of in multiple stator blades 20 of composition stator blade section 11, circumferentially Dc is arranged, the circumferential Dc's of the linking belt 50
Length is corresponding with the circumferential Dc of the trough of belt 31 of each stator blade 20 overall length.
The cylindrical pin inserting hole 51 that two sides on the circumferential Dc of the linking belt 50 are run through formed with radially Dr.
The circumferential Dc and axial Da of pin inserting hole 51 position are that circumferentially Dc is arranged multiple stator blades 20 in composition stator blade section 11
Row and linking belt 50 enter in the state of the trough of belt 31 of each stator blade 20, in the linking belt 50 with end stator blade 20a pin
Position corresponding hole 31h.
Support 40 has：Maintaining part 43 is sealed, it extends on circumferential Dc；Upstream side leg 44, it keeps along sealing
The upstream lateral margin in portion 43 forms and extended to radial outside；Upstream side flange portion 45, its radial outside from upstream side leg 44
Downstream side extends and enters inner barrel 22,22a upstream side slot 28u at end；Downstream leg 46, it is along sealing
The downstream lateral margin of maintaining part 43 forms and extended to radial outside；And downstream side flange portion 47, the radial direction from downstream leg 46
Outboard end extends and enters inner barrel 22 to the upstream side, 22a downstream slot 28d.In the footpath of sealing maintaining part 43
The sealing device 48 to being sealed between sealing maintaining part and the armature spindle 3 (Fig. 1) of compressor drum 2 is provided with to inner side.
Oriented radially inner side depression and the sleeve holding tank extended to circumferential Dc are formed between upstream side leg 44 and downstream leg 46
41.The trench bottom of the sleeve holding tank 41 is formed by sealing maintaining part 43.Forming multiple stator blades of stator blade section 11
20 circumferentially Dc arrangement in the state of, the inner barrel 22 of each stator blade 20,22a upstream side leg 24, upstream lateral edge portion
25th, 25a, downstream leg 26 and downstream lateral edge portion 27 are entered in the sleeve holding tank 41.
As shown in Fig. 6, Fig. 8 and Fig. 9, in the upstream side flange portion 45 of support 40, upstream side leg 44 and sealing maintaining part
43 circumferential Dc two sides are that the face of upstream side accommodates recess 49 formed with the flange that downstream side is recessed.In the support 40
Upstream side leg 44 is also formed with accommodating the pin inserting hole of the bottom surface downstream cylindrical shape that side is run through of recess 49 from the flange
49h.Pin inserting hole 49h circumferential Dc and radial direction Dr position are to form multiple stator blades 20 of stator blade section 11 circumferentially
Dc is arranged, and has the state of the entrance such as the inner barrel 22 of each stator blade 20,22a upstream side leg 24 and downstream leg 26
Under, the position corresponding with end stator blade 20a cotter way 29.
As depicted in figs. 3 and 5, the stator blade section 11 of present embodiment is also equipped with：Band pin 55, limits end stator blade
20a moves relative to linking belt 50 to circumferential Dc；And bracket pins 60, limitation end stator blade 20a is relative to support 40 to circumference
Dc is moved.
Band pin 55 has：Insertion portion, it can be inserted through in the pin inserting hole 51 of linking belt 50；Hole insertion section, enter end
In portion stator blade 20a pin-and-hole 31h.This is inserted through in the pin inserting hole 51 of linking belt 50 with pin 55 in insertion portion, and hole is inserted
In the state of portion is entered in end stator blade 20a pin-and-hole 31h, such as from the part prominent to radial outside of pin inserting hole 51
By fillet welding in linking belt 50, thus prevent from coming off from pin inserting hole 51.
As shown in figs. 6-9, bracket pins 60 have：Insertion portion 61, cylinder is formed centered on bearing pin Ap, and inserted
In the pin inserting hole 49h for passing through support 40；Groove insertion section 62, wherein one be formed in the both ends of the upward insertion portion 61 of bearing pin
End, and enter end stator blade 20a cotter way 29；And flange part 63, the other end being formed in the both ends of insertion portion 61, and
The size in the direction vertical with bearing pin Ap is more than the pin inserting hole 49h of cylinder internal diameter size.
The pin of the outside dimension of the cylindrical insertion portion 61 of bracket pins 60 and the support 40 for the insertion portion 61 insert is inserted
Through hole 49h internal diameter size has mutually chimeric size relationship, more specifically has middle chimeric size relationship.Therefore,
If the cylindrical insertion portion 61 of bracket pins 60 is inserted through in the pin inserting hole 49h of support 40, the whole periphery of insertion portion 61
Inner surface of the face substantially with pin inserting hole 49h is close to.
Formed with relative toward each other side on the direction vertical with bearing pin Ap on the groove insertion section 62 of bracket pins 60
To a pair of flat groove contact surface 62a.When groove insertion section 62 enters the cotter way 29 of support 40, a pair of groove contact surface 62a
In a groove contact surface 62a contacted with the groove side 29a faces in a pair of groove side 29a, and in a pair of groove contact surface 62a
Another groove contact surface 62a contacted with another groove side 29a face in a pair of groove side 29a.
The oriented Directional Extension vertical with bearing pin Ap and groove contact surface 62a, and phase toward each other are formed on flange part 63
To direction a pair of flat first side 63a and the second side for being connected with each side in a pair of first side 63a
Face 63b.Flange part 63 is same with a pair of first side 63a to have a pair of second side 63b.In a pair of second side 63b, wherein
One second side 63b is connected to each other by the end of a side in a pair of first side 63a.Also, another second side
63b is connected to each other by the end of another side in a pair of first side 63a.A pair of second side 63b are in the curved surface of arc-shaped.
The size of space between largest interval size and a pair of first side 63a between a pair of second side 63b is big
In the pin inserting hole 49h of support 40 internal diameter size.Also, the largest interval size between a pair of second side 63b is big
The size of space between a pair of first side 63a.The bearing pin of flange part 63 to size be thickness substantially
The depth dimensions that recess 49 is accommodated with the flange of support 40 is identical or more slightly smaller than its.
As shown in figure 9, the bracket pins 60 are inserted through in insertion portion 61 in pin inserting hole 49h and groove insertion section 62 enters pin
In the state of groove 29, a pair of second side 63b fillet welding on the flange part 63 of bracket pins 60 are made to accommodate the bottom of recess 49 in flange
Face, thus prevent from coming off from pin inserting hole 49h.
Then, the manufacturing sequence of stator blade section 11 described above is illustrated.
First, multiple stator blades 20 discussed above, support 40, linking belt 50, bracket pins 60 and with pin 55 are prepared.
Then, as shown in Fig. 4~Fig. 6, inner barrel 22, the 22a of multiple stator blades 20 are installed to support 40.Now,
1 end stator blade 20a inner barrel 22a is installed to support 40 first, then, will on circumferential Dc with the end stator blade
Stator blade 20b inner barrel 22 is installed to support 40 between another adjacent piece 20a end.Afterwards, successively will be on circumferential Dc
Stator blade 20b inner barrel 22 is installed to support 40 between another adjacent end.Finally, by a remaining end stator blade
20a inner barrel 22a is installed to support 40.
When inner barrel 22, the 22a of stator blade 20 are installed into support 40, make inner barrel 22,22a relative to support 40
Relatively moved to circumferential Dc, so that inner barrel 22,22a upstream side leg 24, upstream lateral edge portion 25,25a, downstream
Side leg 26 and downstream lateral edge portion 27 are entered in the sleeve holding tank 41 of support 40.
As a result, so that the face and the upstream side of support 40 of the radially inner side in inner barrel 22,22a sleeve body 23
The face of flange part 45 and the radial outside in downstream side flange portion 47 is opposed.And so that inner barrel 22,22a upstream side
The face of radial outside on edge part 25,25a is opposed with the face of the radially inner side in the upstream side flange portion 45 of support 40.This
Outside so that inner barrel 22,22a downstream lateral edge portion 27 on radial outside face and support 40 downstream side flange portion 47
On radially inner side face it is opposed.Therefore, inner barrel 22,22a can not carry out relative shifting relative to support 40 on radial direction Dr
It is dynamic.Also, under in the groove bottom on inner sleeve 22,22a upstream side slot 28u and the upstream side flange portion 45 of support 40
Swim that side end face is opposed, inner barrel 22,22a downstream slot 28d on groove bottom and support 40 downstream side flange portion
Upstream-side end surface on 47 is opposed.Therefore, inner barrel 22,22a can not carry out relative shifting relative to support 40 on axial Da
It is dynamic.
That is, if inner barrel 22, the 22a of stator blade 20 are installed on support 40, the stator blade 20 can not be relative to support
40 are relatively moved on radial direction Dr and axial Da.Also, if inner barrel 22, the 22a of multiple stator blades 20 are installed on branch
Frame 40, then the radial direction Dr and axial Da of multiple stator blades 20 mutual position become consistent, and are arranged on circumferential Dc.It is if more
Individual stator blade 20 arranges on circumferential Dc, then is formed as the groove that circumferentially Dc is connected of trough of belt 31 of each stator blade 20.
Then, the insertion portion 61 of bracket pins 60 is inserted through in the pin inserting hole 49h of support 40, and by the bracket pins 60
Groove insertion section 62 is inserted into end stator blade 20a cotter way 29.As a result, so that end stator blade 20a can not be relative to support
40 are relatively moved on circumferential Dc.If 2 end stator blade 20a can not be carried out relatively relative to support 40 on circumferential Dc
Mobile, then stator blade 20b also can not be relative to support 40 in circumferential Dc between multiple ends between 2 end stator blade 20a
On relatively moved.
Then, in order to prevent bracket pins 60 from being come off from the pin inserting hole 49h of support 40, using Fig. 9 mode, as above-mentioned
The flange of second side 63b fillet welding on the flange part 63 of bracket pins 60 to support 40 is accommodated to the bottom surface of recess 49.By with
Upper step, terminate for multiple stator blades 20 to be installed to the work of support 40.
Then, linking belt 50 is inserted in the groove that circumferentially Dc is connected of trough of belt 31 of each stator blade 20.Now, company is made
Ligament 50 is relatively moved relative to the trough of belt 31 of each stator blade 20 on circumferential Dc, and is inserted and linked in each trough of belt 31
Band 50.Also, the pin-and-hole 31h of 1 end stator blade 20a in 2 end stator blade 20a and linking belt 50 pin are inserted
The position consistency of through hole 51, and 1 end stator blade 20a of residue pin-and-hole 31h and linking belt 50 one pin inserting hole of residue
During 51 position consistency, linking belt 50 is completely accommodated in the groove.
If linking belt 50 is completely accommodated in groove, as shown in Figures 4 and 5, the upstream-side end surface of linking belt 50 with it is each quiet
The outer barrel 32 of blade 20, the face in downstream in 32a upstream side leg 34 are opposed.In addition, the downstream of linking belt 50
End face is opposed with the face of the upstream side in the outer barrel 32 of each stator blade 20,32a downstream leg 36.Therefore, each stator blade
Outer barrel 32, the 32a of piece 20 basically can not be relatively moved relative to linking belt 50 on axial Da.
Also, upstream side flange portion 38 and downstream of the face of the radial outside of linking belt 50 with each end stator blade 20a
Radially inner side face in flange part 39 is opposed.Therefore, linking belt 50 basically can not be relative to the outer sheath of multiple stator blades 20
Cylinder 32,32a are relatively moved to the side (radial outside) away from radial direction Dr.In other words, the outer sheath of multiple stator blades 20
Cylinder 32,32a basically can not be relatively moved relative to linking belt 50 to close to radial direction Dr side (radially inner side).
Then, the insertion portion with pin 55 is inserted into the pin inserting hole 51 of linking belt 50, and the hole with pin 55 is inserted
Portion is inserted into end stator blade 20a pin-and-hole 31h.As a result, so that end stator blade 20a can not exist relative to linking belt 50
Relatively moved on circumferential Dc.If 2 end stator blade 20a can not carry out relative shifting relative to linking belt 50 on circumferential Dc
Dynamic, then stator blade 20b also can not be relative to linking belt 50 in circumferential Dc between multiple ends between 2 end stator blade 20a
On relatively moved.
Then, in order to which anti-stop-band pin 55 comes off from the pin inserting hole 51 of linking belt 50, by with pin 55 from pin inserting hole
51 segment angles prominent to radial outside are soldered to linking belt 50.By above step, terminate multiple companies of being installed to of stator blade 20
The work of ligament 50, and complete stator blade section 11.
In addition, in above step, after bracket pins 60 are welded in into support 40, inserted in the trough of belt 31 of each stator blade 20
Linking belt 50.However, it is also possible in the trough of belt 31 of each stator blade 20 after insertion linking belt 50, will be with the company of being welded to of pin 55
Before or after ligament 50, bracket pins 60 are welded to support 40.
Then, before being illustrated to the effect of stator blade section discussed above, first with Figure 10 and Figure 11 pairs
The comparative example of bracket pins 60 illustrates.
The bracket pins 60x of comparative example is the overall cylindrical shape centered on bearing pin Ap.Bracket pins 60x external diameter and end
The well width of portion stator blade 20a cotter way 29 is basically identical.Bracket pins 60x is inserted through in the pin inserting hole 49h of support 40, and
Its first end 62x is inserted in end stator blade 20a cotter way 29.Now, the bracket pins 60x opposite sides of first end 62x
The second end 63x from pin inserting hole 49h protrude.In order to prevent coming off from pin inserting hole 49h, bracket pins 60x the second end
Portion's spot welding or fillet welding are in support 40.
In comparative example, in order to repair the stator blade for forming stator blade section, and from support 40 dismantle multiple stator blades when, such as
Shown in Figure 11, the welding portion 69 between bracket pins 60x and support 40 is removed.Now, with bracket pins 60x the second end 63x
The part for the pin inserting hole 49h for including support 40 is removed in the lump.Therefore, after repairing stator blade, when assembling stator blade section, example
Peripheral part such as the pin inserting hole 49h of the support 40 removed first when decomposing stator blade section implements built-up welding etc..Afterwards,
Inner peripheral surface comprising the pin inserting hole 49h including built-up welding part is finished.
In this way, in the bracket pins 60x of comparative example, after repairing stator blade, it is necessary to carry out support when assembling stator blade section
40 pin inserting hole 49h patch work, and also to be assembled.
Also, the part entered in the bracket pins 60x of the comparative example in end stator blade 20a cotter way 29 is also cylinder
Shape, therefore as shown in Figure 10, bracket pins 60x and cotter way 29 a pair of flat groove side 29a substantially linear contact lays.Therefore,
In bracket pins 60x, the load of the cutting direction from end stator blade 20a is included and a pair of groove side 29a by bracket pins 60x
The part 65x in the face of the line to connect is born.
Therefore, the bracket pins 60x of comparative example relative to the load of the cutting direction from end stator blade 20a intensity compared with
It is low.
Then, the effect of the stator blade section of present embodiment is illustrated.
In the bracket pins 60 of present embodiment, formed with flange part 63 on the end of the insertion portion 61 of bracket pins 60.Such as profit
Illustrated by Fig. 9, in present embodiment, the fillet welding of flange part 63 of bracket pins 60 is in support 40.In present embodiment, equally exist
In order to repair form stator blade section stator blade and from support 40 dismantle multiple stator blades when, as shown in figure 11, remove support
Welding portion 69 between pin 60 and support 40.But in present embodiment, fillet welding part is the pin inserting hole away from support 40
49h position, therefore pin inserting hole 49h is not comprised in and removed in part.
Therefore, in present embodiment, after stator blade 20 is repaired, when assembling stator blade section 11, such as comparative example one
Sample, without carrying out pin inserting hole 49h patch work, it becomes possible to mitigate the burden of the assembly working of stator blade section 11.
Also, in the bracket pins 60 of present embodiment, the groove insertion section in the cotter way 29 for entering end stator blade 20a
62 formed with a pair of flat groove contact surface 62a, and the groove contact surface 62a and cotter way 29 a pair of flat groove side 29a faces
Contact.Therefore, as shown in figure 12, in the bracket pins 60 of present embodiment, the lotus for the cutting direction that stator blade 20a is subject to from end
Carry, by being included in bracket pins 60 with the part 65 of the approximately parallelepiped body shape in a pair of groove side 29a faces to connect to bear.
Therefore, in present embodiment, the part that is entered in bracket pins 60 in cotter way 29, from end stator blade 20a by
It is more than the bracket pins 60 of comparative example to the part 65 of the load from cutting direction.Therefore, in the bracket pins 60 of present embodiment,
Even if the bracket pins 60x of the sectional area vertical with entering the bearing pin Ap of the part in cotter way 29 and comparative example in bracket pins 60
It is identical, also the load relative to the cutting direction from end stator blade 20a can be improved by the bracket pins 60x of comparative example
Intensity.
A pair of groove side 29a for separating the cotter way 29 of the end stator blade 20a in present embodiment are vertical with circumferential Dc
Face.In present embodiment, as described above, in order to improve the load relative to cutting direction from end stator blade 20a
Intensity, a pair of flat groove contact surface 62a are formed on the groove insertion section 62 in the cotter way 29 for entering end stator blade 20a,
And the groove contact surface 62a is set to be contacted with a pair of flat groove side 29a faces of cotter way 29.Therefore, it is necessary to will in present embodiment
Bracket pins 60 are inserted into the pin inserting hole 49h of support 40, so as to the groove side 29a of cotter way 29 propagation direction and bracket pins 60
Groove contact surface 62a propagation direction it is consistent.
Formed on the flange part 63 of the bracket pins 60 of present embodiment oriented vertical with the groove contact surface 62a of bracket pins 60
Directional Extension, and a pair of flat first side 63a in direction relative toward each other.Therefore, if by making flange part 63
A pair of flat first side 63a are radially oriented Dr, and bracket pins 60 are inserted into pin inserting hole 49h and cotter way 29, then sell
The groove side 29a of groove 29 propagation direction is consistent with the groove contact surface 62a of bracket pins 60 propagation direction.That is, bracket pins 60
A pair of flat first side 63a in flange part 63 turn into the propagation direction for a pair of groove side 29a for determining the bracket pins 60
Mark.Therefore, in present embodiment, the groove insertion section 62 of bracket pins 60 can be easily inserted into end stator blade 20a
Cotter way 29 in.
As described above, the outside dimension of the cylindrical insertion portion 61 of bracket pins 60 and the support for the insertion portion 61 insert
40 pin inserting hole 49h internal diameter size has mutually chimeric size relationship.Therefore, if the cylindrical insertion portion of bracket pins 60
61 are inserted through in the pin inserting hole 49h of support 40, then inner surface of the whole outer peripheral face of insertion portion 61 substantially with pin inserting hole 49h
It is close to.It is all for making bracket pins 60 relative to branch therefore, it is possible to be born by the pin inserting hole 49h of support 40 inner surface
The power that frame 40 is relatively moved to the direction vertical with bearing pin Ap.Therefore, the welding portion between bracket pins 60 and support 40
69 are almost not subject to the power for making bracket pins 60 be relatively moved relative to support 40 to the direction vertical with bearing pin Ap.Cause
This, in present embodiment, the welding portion 69 that can suppress between bracket pins 60 and support 40 is impaired.
Also, in the bracket pins 60 of present embodiment, the flange part 63 for not being inserted through the pin inserting hole 49h of support 40 holds
The flange for being contained in the insert direction depression to bracket pins 60 is accommodated in recess 49, and is not protruded from the outer surface of support 40.Cause
This, in present embodiment, can reduce the resistance in the air of the outside of support 40 flowing.In other words, in present embodiment, energy
Enough suppress the windage loss in compressor.
" variation "
The variation of stator blade section discussed above is illustrated.
In embodiment of above, the shape with pin 55 is not illustrated, but it is same with bracket pins 60, can also
Flange part is set on the band pin 55.
In embodiment of above, the outer circumferential side parts of multiple stator blades is linked using linking belt 50 and with pin 55 each other,
But the outer circumferential side part of multiple stator blades can also be linked by other method each other.
In embodiment of above, the example of the stator blade section 11 of compressor 1 is illustrated, but the utility model is simultaneously
This is not limited to, the utility model can also be applied in the stator blade section of other axial flow fluids machinery such as turbine.
Industrial applicability
According to a mode of the present utility model, it can either prevent that limiting the pin that stator blade moves relative to limiting part takes off
Fall, and can enough mitigates the burden of assembly working.
Symbol description
1- compressors, 2- compressor drums, 4- movable vane lamellas, 5- compressor cases, 6- burners, 7- turbines, 10- stator blades
Loop, 11- stator blades section, 20- stator blades, 20a- ends stator blade, stator blade between 20b- ends, 21- blade bodies, 22,
22a- inner barrels, 29- cotter ways, 29a- grooves side, 31- troughs of belt, 32,32a- outer barrels, 40- supports (inner side limiting unit
Part), 49- flanges receiving recess, 49h- pin inserting holes, 50- linking belts (outside limiting part), 55- band pins, 60- bracket pins,
61- insertion portions, 62- grooves insertion section, 62a- groove contact surfaces, 63- flange parts, 63a- first sides, 63b- second sides, 69- welderings
Socket part point.
Claims (9)
1. a kind of stator blade section, forms centered on axis and forms a part for the stator blade loop of ring-type, it is characterised in that
The stator blade section possesses：
Multiple stator blades, along the circumferential array relative to the axis；
Limiting part, engaged by the part of the radially inner side with the axis relative to multiple stator blades more to limit
The individual stator blade moves radially；And
Pin, relative to the limiting part, limit the end stator blade for being located at the circumferential both ends in multiple stator blades
The circumferential movement,
In the cylindrical pin being formed in part with for pin insert engaged with the end stator blade in the limiting part
Inserting hole,
The leading section of the pin formed with the pin inserting hole for being inserted through the limiting part on the end stator blade
The cotter way of entrance,
The pin has：Insertion portion, cylinder is formed centered on bearing pin and is inserted through the pin inserting hole；Groove insertion section, shape
One end in the both ends of insertion portion described in Cheng Yu, and enter in the cotter way；And flange part, it is formed at the two of the insertion portion
The other end in end, and the size in the direction vertical with the bearing pin is more than the internal diameter size of the pin inserting hole of cylinder,
The insertion portion of the pin is inserted in the pin inserting hole, and described in the entrance of the groove insertion section of the pin
In the state of cotter way, the i.e. described pin in surface that at least a portion of the flange part of the pin is welded on the limiting part is inserted
The peripheral part of through hole.
2. stator blade section according to claim 1, wherein,
Formed with being connected with the pin inserting hole and from the surface of the limiting part to inserting for the pin on the limiting part
The insert direction depression of the pin inserting hole is passed through, and the flange that can accommodate the flange part accommodates recess,
The flange accommodates the part on surface of the bottom surface of recess as the limiting part, the flange part weldering of the pin
It is connected on the bottom surface.
3. stator blade section according to claim 1 or 2, wherein,
The cotter way has in a pair mutually opposing of flat groove sides of the circumference, is separated with this,
The groove insertion section of the pin has a pair of flat groove contact surfaces towards mutually relative direction, a pair of grooves
One groove contact surface of contact surface contacts by side with a groove of the pair of groove side, a pair groove contact surfaces it is another
Individual groove contact surface and another groove of the pair of groove side contact by side.
4. stator blade section according to claim 3, wherein,
The oriented Directional Extension vertical with a pair of groove contact surfaces, and phase toward each other are formed on the flange part of the pin
To direction a pair of flat first sides.
5. stator blade section according to claim 4, wherein,
Formed with second to be connected with each side in a pair of flat first sides on the flange part of the pin
Side,
The second side of the flange part is welded on the peripheral part of the i.e. described pin inserting hole in surface of the limiting part.
6. stator blade section according to claim 1 or 2, wherein,
The outside dimension of the cylindrical insertion portion of the pin and the cylindrical pin inserting hole of the limiting part
Internal diameter size there is mutually chimeric size relationship.
7. stator blade section according to claim 1 or 2, wherein,
The flange part of the pin and the surface of the limiting part are the welding between the peripheral part of the pin inserting hole
For fillet welding.
8. stator blade section according to claim 1 or 2, wherein,
The stator blade section engages except possessing with the axis relative to multiple stator blades for the part of radially inner side
The limiting part be inner side limiting part outside, be also equipped with relative to multiple stator blades the axis for radially
The part engaging in outside, to limit the outside limiting part moved radially described in multiple stator blades.
9. a kind of axial flow fluid machinery, it is characterised in that possess：
The stator blade loop, there is the stator blade section any one of multiple claims 1 to 8；
Shell, is cylindrical in shape and the stator blade loop is installed on inner circumferential side；And
Rotor, rotated in the shell centered on the axis.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/067855 WO2016207942A1 (en) | 2015-06-22 | 2015-06-22 | Stator-vane segment and axial-flow fluid machine provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206626020U true CN206626020U (en) | 2017-11-10 |
Family
ID=57586309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201590000066.9U Active CN206626020U (en) | 2015-06-22 | 2015-06-22 | Stator blade section and the axial flow fluid machinery for possessing the stator blade section |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206626020U (en) |
| WO (1) | WO2016207942A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709716A (en) * | 2020-12-29 | 2021-04-27 | 中国航发沈阳发动机研究所 | Compressor stator blade structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58169210U (en) * | 1982-05-07 | 1983-11-11 | トヨタ自動車株式会社 | Pin for aligning two holes |
| US5141394A (en) * | 1990-10-10 | 1992-08-25 | Westinghouse Electric Corp. | Apparatus and method for supporting a vane segment in a gas turbine |
| US7458768B2 (en) * | 2005-06-28 | 2008-12-02 | United Technologies Corporation | Borescope inspection port device for gas turbine engine and gas turbine engine using same |
| EP1788198A2 (en) * | 2005-11-21 | 2007-05-23 | The General Electric Company | Turbine blades retention system and method |
| JP4918263B2 (en) * | 2006-01-27 | 2012-04-18 | 三菱重工業株式会社 | Stator blade ring of axial compressor |
| JP2014066174A (en) * | 2012-09-26 | 2014-04-17 | Mitsubishi Heavy Ind Ltd | Positioning device and rotary fluid machinery having the same |
| JP6229837B2 (en) * | 2013-12-24 | 2017-11-15 | 三菱日立パワーシステムズ株式会社 | Stator blade segment and axial flow fluid machine having the same |
-
2015
- 2015-06-22 WO PCT/JP2015/067855 patent/WO2016207942A1/en active Application Filing
- 2015-06-22 CN CN201590000066.9U patent/CN206626020U/en active Active
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| Publication number | Publication date |
|---|---|
| WO2016207942A1 (en) | 2016-12-29 |
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Address after: Kanagawa Prefecture, Japan Patentee after: Mitsubishi Power Co., Ltd Address before: Kanagawa Prefecture, Japan Patentee before: MITSUBISHI HITACHI POWER SYSTEMS, Ltd. |
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| CP01 | Change in the name or title of a patent holder |