CN105927585B - A kind of axial positioning structure of compressor blade in impeller race - Google Patents
A kind of axial positioning structure of compressor blade in impeller race Download PDFInfo
- Publication number
- CN105927585B CN105927585B CN201610384644.4A CN201610384644A CN105927585B CN 105927585 B CN105927585 B CN 105927585B CN 201610384644 A CN201610384644 A CN 201610384644A CN 105927585 B CN105927585 B CN 105927585B
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- China
- Prior art keywords
- pin
- impeller
- blade
- slot
- blade root
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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
- F04D29/26—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)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a kind of axial positioning structure of compressor blade in impeller race, and including blade, impeller, the blade root of the blade is assemblied in the race of impeller；It is characterized in that：The wheel rim contact surface of the blade root and impeller has pin hole, which is made of the slot on the slot and wheel rim on blade root, there is the first half pins, the circular pegs of the second half pin bank synthesis in pin hole；When the first half pin, the second half pins are respectively charged into the slot on slot and wheel rim on blade root, fitting surface is not protruded from；The circular pegs are adapted to pin hole, and can be rotated in pin hole；The first half pin, the circular pegs of the second half pin bank synthesis make it protrude from fitting surface position turning to, fixed after sleeving and riveting.The configuration of the present invention is simple, it is easy to process, it is easy to assembly, it can easier accomplish the size of very little.Applicability is wide, can be used in large, medium and small type compressor.
Description
Technical field
The present invention relates to compressor blade, impeller assembling structure, specifically a kind of compressor blade is in impeller race
In axial positioning structure.
Background technology
Compressor blade is mounted in by its blade root in the race of impeller, since the blade root of blade is fir tree shape, dove-tail form etc.
Blade root, impeller race are one and are adapted axial pass trough therewith, to ensure that vaned axial position is consistent on impeller, and prevent
Only blade slides from race, generally use locking key or screw locking.
At present, the axially mounted blade positioning method of existing large-scale compressor is typically in wheel rim, blade root bottom in the world
Or locating slot or location hole are opened in blade root platform position, and the axially position of compressor blade is realized by locking key or screw.For in,
For baby compressor, the blade root platform and wheel rim meat of compressor blade are thick compared to less.If using large-scale compressor blade
Axially position mode, the usually not enough design spaces of blade root, wheel rim and locking key can only be by reducing locking key or screw ruler
It is very little.But this usually brings very big difficulty to processing and manufacturing.
The content of the invention
The purpose of the present invention is to solve above-mentioned technical problems, provide a kind of axis of compressor blade in impeller race
To location structure, the structure of the axial positioning structure is simple, assembling easy to process, suitable for the sharf of large, medium and small compressor
To location structure.
Realize the technical scheme is that：A kind of axial positioning structure of compressor blade in impeller race, including
Blade, impeller, the blade root of the blade are assemblied in the race of impeller；It is characterized in that：The wheel rim of the blade root and impeller connects
Contacting surface has pin hole, which is made of the slot on the slot and wheel rim on blade root, there is the first half pins, the second half pin bank synthesis in pin hole
Circular pegs；When the first half pin, the second half pins are respectively charged into the slot on slot and wheel rim on blade root, assembling is not protruded from
Face；The circular pegs are adapted to pin hole, and can be rotated in pin hole.
The first half pin, the circular pegs of the second half pin bank synthesis make it protrude from fitting surface position turning to, through punching
It is fixed after riveting.
The first half pin, the second half pin band pins are preced with, and the pin hat is in lower section.
The first half pin, the second half pin band pin feet have the inclined-plane convenient for sleeving and riveting on the pin foot.
The first half pin, the second half pins are half identical or different pin of size.
The beneficial effects of the invention are as follows：
1st, it is simple in structure, it is easy to process, it is easy to assembly, it can easier accomplish the size of very little.
2nd, applicability is wide, can be used in large, medium and small type compressor.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structure diagram of circular pegs of the present invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the schematic diagram of assembling process of the present invention.
Figure label：1-blade, 2-blade root, 3-impeller, 4-race, 5-wheel rim, the 6-the first half pin, 7-the second
Half sells, 8-pin hat, 9-pin foot, 10-inclined-plane.
Specific embodiment
As shown in Figure 1 to Figure 3：Axial positioning structure of a kind of compressor blade in impeller race, including blade 1, leaf
Wheel 3, the blade root 2 of the blade 1 is assemblied in the race 4 of impeller 3；The blade root 2 and 5 contact surface of wheel rim of impeller 3 have pin hole,
The pin hole is made of the slot on the slot on blade root 2 and wheel rim 5, there is the circle that the first half pins 6, the second half pins 7 are combined into pin hole
Pin；When the first half pin 6, the second half pins 7 are respectively charged into the slot on the slot on blade root 2 and wheel rim 5, fitting surface is not protruded from；
The circular pegs are adapted to pin hole, and can be rotated in pin hole.The first half pin 6, the second half pins 7 are the identical semicircle of size
Pin, the circular pegs being combined into make it protrude from fitting surface position turning to, fixed after sleeving and riveting.The first half pin 6,
2 half pins 7 band pin is preced with 8, and the pin hat 8 is in lower section.The first half pin 6, the second half band pin feet 9 of pin 7, on the pin foot 9
There is the inclined-plane 10 convenient for sleeving and riveting.
The assembling process of the present invention（Such as Fig. 4）It is：Before assembly, the first half pins 6, the second half pins 7 are respectively put into blade root 2
On slot and wheel rim 5 on slot, it is made not protrude from fitting surface；Then blade root 2 is pushed into race 4, be installed in place；At this moment first
Half pin 6, the second half pins 7 are combined into circular pegs；Circular pegs are rotated, it is fixed after sleeving and riveting after it is made to protrude from fitting surface position.
Use above specific case is illustrated the present invention, is only intended to help to understand the present invention, not limiting
The system present invention.For those skilled in the art, thought according to the invention can also be made several simple
It deduces, deform or replaces.
Claims (4)
1. a kind of axial positioning structure of compressor blade in impeller race, including blade, impeller, the blade root dress of the blade
In the race for fitting over impeller；It is characterized in that：The wheel rim contact surface of the blade root and impeller has pin hole, and the pin hole is by blade root
Slot composition on slot and wheel rim has the first half pins, the circular pegs of the second half pin bank synthesis in pin hole；The first half pin, second
When half pin is respectively charged into the slot on slot and wheel rim on blade root, fitting surface is not protruded from；The circular pegs are adapted to pin hole, and energy
It is rotated in pin hole；The first half pin, the circular pegs of the second half pin bank synthesis make it protrude from fitting surface position turning to,
It is fixed after sleeving and riveting.
2. axial positioning structure of the compressor blade in impeller race according to claim 1, it is characterised in that：Described
Half pin, the second half pins band pin are preced with, and the pin hat is in lower section.
3. axial positioning structure of the compressor blade in impeller race according to claim 1, it is characterised in that：Described
Half pin, the second half pins band pin foot have the inclined-plane convenient for sleeving and riveting on the pin foot.
4. axial positioning structure of the compressor blade in impeller race according to claim 1, it is characterised in that：Described
Half pin, the second half pins are half identical or different pin of size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384644.4A CN105927585B (en) | 2016-06-02 | 2016-06-02 | A kind of axial positioning structure of compressor blade in impeller race |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384644.4A CN105927585B (en) | 2016-06-02 | 2016-06-02 | A kind of axial positioning structure of compressor blade in impeller race |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927585A CN105927585A (en) | 2016-09-07 |
| CN105927585B true CN105927585B (en) | 2018-05-22 |
Family
ID=56833373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610384644.4A Active CN105927585B (en) | 2016-06-02 | 2016-06-02 | A kind of axial positioning structure of compressor blade in impeller race |
Country Status (1)
| Country | Link |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593941B (en) * | 2016-11-29 | 2019-03-29 | 东方电气集团东方汽轮机有限公司 | A kind of rotor pump impeller installation and positioning structure |
| CN108050101A (en) * | 2017-12-19 | 2018-05-18 | 哈尔滨广瀚燃气轮机有限公司 | A kind of Vessel personnel high pressure ratio compressor blade connects outer shroud |
| CN110397625A (en) * | 2019-08-15 | 2019-11-01 | 上海电气燃气轮机有限公司 | A kind of new blade locking device |
| CN111795000B (en) * | 2020-07-06 | 2022-02-18 | 江苏大学镇江流体工程装备技术研究院 | Swirl pump impeller with guide rails and fixed blades |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129786A (en) * | 1990-11-08 | 1992-07-14 | United Technologies Corporation | Variable pitch pan blade retention arrangement |
| US5720596A (en) * | 1997-01-03 | 1998-02-24 | Westinghouse Electric Corporation | Apparatus and method for locking blades into a rotor |
| CN101285401B (en) * | 2008-06-03 | 2010-06-02 | 东方电气集团东方汽轮机有限公司 | Firtree -type bucket root steam turbine rotor blades and its locking notch vane |
| CN104564801A (en) * | 2014-11-18 | 2015-04-29 | 东方电气集团东方汽轮机有限公司 | Axial positioning structure for compressor blade in impeller groove |
| CN104675857B (en) * | 2015-02-13 | 2017-04-12 | 郑州大学 | Two-way bearing heavy load guide rail pair |
| CN205243724U (en) * | 2015-12-17 | 2016-05-18 | 北京优利康达科技有限公司 | Prevent structure of triangle flange slope |
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2016
- 2016-06-02 CN CN201610384644.4A patent/CN105927585B/en active Active
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| CN105927585A (en) | 2016-09-07 |
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