CN108612672A - A kind of location structure of compressor blade - Google Patents
A kind of location structure of compressor blade Download PDFInfo
- Publication number
- CN108612672A CN108612672A CN201810404027.5A CN201810404027A CN108612672A CN 108612672 A CN108612672 A CN 108612672A CN 201810404027 A CN201810404027 A CN 201810404027A CN 108612672 A CN108612672 A CN 108612672A
- Authority
- CN
- China
- Prior art keywords
- blade
- locking key
- impeller
- blade body
- location
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of location structures of compressor blade comprising blade body, locking key and impeller, the blade root of blade body realize axially position locking between blade body and impeller in the race of impeller by locking key；The positions Ye Ding of blade body are equipped with leaf top technique lug, and leaf top technique lug offers at least one location hole A；There is leading edge and trailing edge made of a pair of of bending, the locking key to be crossed on wheel rim for locking key, leading edge and trailing edge respectively with the air inlet side of impeller and go out gas side and coordinate, so that locking key is stuck on wheel rim；Location hole B is offered in the middle part of locking key, the boss being adapted to location hole B is provided on the blade root bottom surface of blade body.The invention has the advantages that it is simple in structure, it is easy to process, it is easy to assembly；And it is relatively low to the forging level requirement of blade, reduce the processing cost of compressor blade.
Description
Technical field
The present invention relates to compressor blade assembling structure technical fields, more particularly, to a kind of positioning knot of compressor blade
Structure.
Background technology
Conventional compressor blade finished product blade is relatively thin, only blade root, no integral shroud.The common detection of this blade forging and machine add
Work positioning method is：Increase hard origin reference location boss in blade, blade, (or the blade root of blade itself is flat by limiting boss
Face), to limit blade movement, and then achieve the purpose that detect forging and process.
Also, compressor blade is mounted in by its blade root in the race of impeller, since the blade root of blade is fir tree shape, dovetail
The blade roots such as type, impeller race are one and are adapted axial pass trough therewith, to ensure that vaned axial position is consistent on impeller,
And prevent blade from being slid from race, generally use locking key or screw locking.Currently, in the world existing large-scale compressorshaft to
Installation blade positioning method is typically to open locating slot or location hole in wheel rim and blade root platform position, is realized by locking key or screw
The axially position of compressor blade.For this positioning method, locating slot, screw hole may weaken the strong of wheel rim and blade root platform
Degree, influences rotor security.
Instantly, for domestic blade forging horizontally relative to there is certain gap in the world, compressor blade forging is same,
And it is higher to the forging level requirement of forging by the hard origin reference location mode that blade boss positions, need forging consistency of thickness
Very good with profile tolerance, in the case where current forging is horizontal, to reach such forging state cost can also increase.
Invention content
To solve the above-mentioned problems, the present invention is proposed the present invention provides a kind of location structure of compressor blade,
Including blade body, the blade root of blade body is in the race of impeller.
The location structure of the compressor blade further includes locking key, is realized axially by locking key between blade body and impeller
Positioning and locking.
The positions Ye Ding of the blade body are provided with leaf top technique lug, and the leaf top technique lug offers at least one
A location hole A.
There is leading edge and trailing edge made of a pair of of bending, the locking key to be crossed on wheel rim for the locking key, into
Gas side and trailing edge coordinate with the air inlet side of impeller and outlet side respectively, and locking key is made to be stuck on wheel rim；The locking key
Middle part offers location hole B, and the boss being adapted to location hole B, the height of boss are provided on the blade root bottom surface of blade body
Equal to or slightly less than the thickness of locking key；The locking key only bends a line before assembly, and another a line is bent again after being packed into race.
Further, location hole A there are one being opened up on the lateral surface of the leaf top technique lug, location hole A are set to
At the center of leaf top technique lug lateral surface.
Further, the locking key is saddle type locking key.
Further, the location hole B in the locking key is square hole, is adapted therewith, convex on blade body blade root bottom surface
Platform is a cube platform.
Further, the location hole B in the locking key is circular hole, is adapted therewith, convex on blade body blade root bottom surface
Platform is cylinder table.
Compared with prior art, the beneficial effects of the present invention are：Increase technique using the lateral surface on blade and blade top to take
Son, and the mode of brill location hole is positioned on technique lug, is splined without on blade root, impeller, and it is flat not influence blade root
The intensity of platform, impeller, it is simple in structure, it is easy to process, it is easy to assembly；And it is relatively low to the forging level requirement of blade, it reduces
The processing cost of compressor blade.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of locking key of the present invention；
Fig. 3 is the side view of locking key of the present invention；
Reference sign：1- blade bodies；11- boss；2- locking keys；21- location holes B；22- leading edges；23- trailing edges；3-
Impeller；4- leaves top technique lug；41- location holes A.
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control illustrates this hair
Bright specific implementation mode, but protection scope of the present invention be not limited to it is as described below.
As shown in Fig. 1 ~ Fig. 3, the present invention provides a kind of location structures of compressor blade comprising blade body 1, leaf
The blade root of piece ontology 1 is in the race of impeller 3.
The location structure of the compressor blade further includes locking key 2, is realized by locking key 2 between blade body 1 and impeller 3
Axially position is locked.The locking key 2 is saddle type locking key.
The positions Ye Ding of the blade body 1 are provided with leaf top technique lug 4, the leaf top technique lug 4 offer to
A few location hole A41.
There is leading edge 22 and trailing edge 23 made of a pair of of bending, the locking key 2 to be crossed on 3 wheel rim of impeller for the locking key 2
On, leading edge 22 and trailing edge 23 coordinate with the air inlet side of impeller 3 and outlet side respectively, and locking key 2 is made to be stuck in the wheel of impeller 3
On edge；2 middle part of the locking key offers location hole B21, is provided on the blade root bottom surface of blade body 1 suitable with location hole B21
The boss 11 matched, the height of boss 11 are equal to or slightly less than the thickness of locking key 2；The locking key 2 only bends a line before assembly,
Another a line is bent again after being packed into race.It should be noted that in the present embodiment, the sides of being location hole B21 in the locking key 2
Hole is adapted therewith, and the boss 11 on 1 blade root bottom surface of blade body is a cube platform.
Location hole A41 there are one being opened up on the lateral surface of the leaf top technique lug 4, location hole A41 are set to leaf top
At the center of 4 lateral surface of technique lug.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (5)
1. a kind of location structure of compressor blade comprising blade body（1）, blade body（1）Blade root be mounted in impeller（3）
Race in, it is characterised in that：The location structure of the compressor blade further includes locking key（2）, blade body（1）With impeller
（3）Between pass through locking key（2）Realize axially position locking；
The blade body（1）The positions Ye Ding be provided with leaf top technique lug（4）, the leaf top technique lug（4）It offers
At least one location hole A（41）；
The locking key（2）Leading edge made of being bent with a pair（22）And trailing edge（23）, the locking key（2）It is crossed on impeller
（3）On wheel rim, leading edge（22）And trailing edge（23）Respectively with impeller（3）Air inlet side and outlet side cooperation, make lock
Key（2）It is stuck in impeller（3）On wheel rim；The locking key（2）Middle part offers location hole B（21）, blade body（1）Blade root bottom surface
On be provided with and location hole B（21）The boss of adaptation（11）, boss（11）Height be equal to or slightly less than locking key（2）Thickness
Degree；The locking key（2）A line is only bent before assembly, and another a line is bent again after being packed into race.
2. a kind of location structure of compressor blade described in claim 1, it is characterised in that：The leaf top technique lug（4）
Lateral surface on open up there are one location hole A（41）, location hole A（41）It is set to leaf top technique lug（4）In lateral surface
At the heart.
3. a kind of location structure of compressor blade described in claim 1, it is characterised in that：The locking key（2）It is saddle type lock
Key.
4. a kind of location structure of compressor blade described in claim 1 or 3, it is characterised in that：The locking key（2）On determine
Position hole B（21）It is square hole, is adapted therewith, blade body（1）Boss on blade root bottom surface（11）It is a cube platform.
5. a kind of location structure of compressor blade described in claim 1 or 3, it is characterised in that：The locking key（2）On determine
Position hole B（21）It is circular hole, is adapted therewith, blade body（1）Boss on blade root bottom surface（11）It is cylinder table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404027.5A CN108612672A (en) | 2018-04-28 | 2018-04-28 | A kind of location structure of compressor blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404027.5A CN108612672A (en) | 2018-04-28 | 2018-04-28 | A kind of location structure of compressor blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108612672A true CN108612672A (en) | 2018-10-02 |
Family
ID=63661758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810404027.5A Pending CN108612672A (en) | 2018-04-28 | 2018-04-28 | A kind of location structure of compressor blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296105A (en) * | 2019-08-15 | 2019-10-01 | 上海电气燃气轮机有限公司 | Blade locking mechanism |
-
2018
- 2018-04-28 CN CN201810404027.5A patent/CN108612672A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296105A (en) * | 2019-08-15 | 2019-10-01 | 上海电气燃气轮机有限公司 | Blade locking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181002 |