CN105927585A - Axial positioning structure for compressor blade in impeller groove - Google Patents
Axial positioning structure for compressor blade in impeller groove Download PDFInfo
- Publication number
- CN105927585A CN105927585A CN201610384644.4A CN201610384644A CN105927585A CN 105927585 A CN105927585 A CN 105927585A CN 201610384644 A CN201610384644 A CN 201610384644A CN 105927585 A CN105927585 A CN 105927585A
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- China
- Prior art keywords
- pin
- impeller
- blade
- groove
- positioning structure
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Classifications
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- 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 an axial positioning structure for a compressor blade in an impeller groove. The axial positioning structure comprises the blade and an impeller. A blade root of the blade is assembled in the impeller groove of the impeller. A pin hole is formed in the contact face of the blade root and an impeller edge of the impeller and is composed of a groove in the blade root and a groove in the impeller edge. A round pin formed by combining a first half pin and a second half pin is arranged in the pin hole. The first half pin and the second half pin do not protrude out of an assembling face when being arranged in the groove in the blade root and the groove in the impeller edge correspondingly. The round pin is matched with the pin hole and can rotate in the pin hole. The axial poisoning structure is simple, easy to machine, convenient to assemble, capable of being manufactured to reach a very small size relatively easily, wide in applicability, and capable of being adopted in large, medium and small sized compressors.
Description
Technical field
The present invention relates to compressor blade, impeller assembling structure, a kind of compressor blade axial positioning structure in impeller race.
Background technology
Compressor blade is contained in the race of impeller by its blade root, owing to the blade root of blade is the blade roots such as fir shape, dove-tail form, impeller race is an axial pass trough the most suitable, for ensureing that on impeller, vaned axial location is consistent, and prevent blade landing from race, generally use locking key or screw locking.
At present, the most existing large-scale compressor axially mounted blade location mode is typically bottom wheel rim, blade root or locating slot or hole, location are opened in blade root platform position, is realized the axial location of compressor blade by locking key or screw.For medium and small compressor, blade root platform and the wheel rim meat thickness of compressor blade are compared less.If using the axial location mode of large-scale compressor blade, the design space that blade root, wheel rim and locking key are enough, can only be by reducing locking key or screw sizes.But this generally brings the biggest difficulty to processing and manufacturing.
Summary of the invention
The invention aims to solve above-mentioned technical problem, it is provided that a kind of compressor blade axial positioning structure in impeller race, the simple in construction of this axial positioning structure, it is easy to process and assemble, it is adaptable to the blade axial positioning structure of large, medium and small compressor.
Realizing the technical scheme is that a kind of compressor blade axial positioning structure in impeller race, including blade, impeller, the blade root of described blade is assemblied in the race of impeller；It is characterized in that: the wheel rim contact surface of described blade root and impeller has pin-and-hole, and this pin-and-hole is made up of the groove on blade root and the groove on wheel rim in pin-and-hole, having the first half pins, the circular pegs of the second half pin bank synthesis；During groove on groove that described the first half pins, the second half pins are respectively charged on blade root and wheel rim, do not protrude from fitting surface；Described circular pegs is adaptive with pin-and-hole, and can rotate in pin-and-hole.
Described the first half pins, the circular pegs of the second half pin bank synthesis make it protrude from fitting surface position turning to, fixing after sleeving and riveting.
Described the first half pins, the second half selling all band pin hats, described pin is preced with in lower section.
Described the first half pins, the second half sell all band pin feet, described pin foot has the inclined-plane being easy to sleeving and riveting.
Half pin identical or different sized by described the first half pins, the second half pins.
The invention has the beneficial effects as follows:
1, simple in construction, it is easy to processing, easy to assembly, it is possible to easier to accomplish the least size.
2, the suitability is wide, all can use at large, medium and small type compressor.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the structural representation of circular pegs of the present invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the schematic diagram that the present invention assembles process.
Label in figure: 1 blade, 2 blade roots, 3 impellers, 4 races, 5 wheel rims, 6 the first half pins, 7 the second half pins, 8 pin hats, 9 pin feet, 10 inclined-planes.
Detailed description of the invention
As shown in Figure 1 to Figure 3: a kind of compressor blade axial positioning structure in impeller race, including blade 1, impeller 3, the blade root 2 of described blade 1 is assemblied in the race 4 of impeller 3；Described blade root 2 has pin-and-hole with wheel rim 5 contact surface of impeller 3, and this pin-and-hole is made up of the groove on the groove on blade root 2 and wheel rim 5, has the circular pegs that the first half pins 6, the second half pins 7 are combined in pin-and-hole；When described the first half pins 6, the second half pins 7 are respectively charged into the groove on blade root 2 and the groove on wheel rim 5, do not protrude from fitting surface；Described circular pegs is adaptive with pin-and-hole, and can rotate in pin-and-hole.Half round pin identical sized by described the first half pins 6, the second half pins 7, the circular pegs that a combination thereof becomes makes it protrude from fitting surface position turning to, fixing after sleeving and riveting.Described the first half pins 6, the second half pin 7 all band pins hats 8, described pin hat 8 is in lower section.Described the first half pins 6, the second half pin 7 all band pin feet 9, described pin foot 9 has the inclined-plane 10 being easy to sleeving and riveting.
The assembling process (such as Fig. 4) of the present invention is: before assembly, the first half pins 6, the second half pins 7 is respectively put into the groove on blade root 2 and the groove on wheel rim 5 so that it is do not protrude from fitting surface；Then blade root 2 being pushed race 4, installation puts in place；At this moment the first half pins 6, the second half pins 7 are combined into circular pegs；Rotate circular pegs so that it is after protruding from fitting surface position, fixing after sleeving and riveting.
The present invention is illustrated by use above specific case, is only intended to help and understands the present invention, not in order to limit the present invention.For those skilled in the art, according to the thought of the present invention, it is also possible to make some simple deductions, deform or replace.
Claims (5)
1. a compressor blade axial positioning structure in impeller race, including blade, impeller, the blade root of described blade is assemblied in the race of impeller；It is characterized in that: the wheel rim contact surface of described blade root and impeller has pin-and-hole, and this pin-and-hole is made up of the groove on blade root and the groove on wheel rim in pin-and-hole, having the first half pins, the circular pegs of the second half pin bank synthesis；During groove on groove that described the first half pins, the second half pins are respectively charged on blade root and wheel rim, do not protrude from fitting surface；Described circular pegs is adaptive with pin-and-hole, and can rotate in pin-and-hole.
Compressor blade axial positioning structure in impeller race the most according to claim 1, it is characterised in that: described the first half pins, the circular pegs of the second half pin bank synthesis make it protrude from fitting surface position turning to, fixing after sleeving and riveting.
Compressor blade axial positioning structure in impeller race the most according to claim 1, it is characterised in that: described the first half pins, the second half selling all band pin hats, described pin is preced with in lower section.
Compressor blade axial positioning structure in impeller race the most according to claim 1, it is characterised in that: described the first half pins, the second half sell all band pin feet, described pin foot has the inclined-plane being easy to sleeving and riveting.
Compressor blade axial positioning structure in impeller race the most according to claim 1, it is characterised in that: half pin identical or different sized by described the first half pins, the second half pins.
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 true CN105927585A (en) | 2016-09-07 |
| CN105927585B CN105927585B (en) | 2018-05-22 |
Family
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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 |
|---|---|
| CN (1) | CN105927585B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593941A (en) * | 2016-11-29 | 2017-04-26 | 东方电气集团东方汽轮机有限公司 | Rotor pump wheel installation 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 |
| CN111795000A (en) * | 2020-07-06 | 2020-10-20 | 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 |
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|---|---|---|---|---|
| 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 |
| CN101285401A (en) * | 2008-06-03 | 2008-10-15 | 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 |
| CN104675857A (en) * | 2015-02-13 | 2015-06-03 | 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
Patent Citations (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 |
| CN101285401A (en) * | 2008-06-03 | 2008-10-15 | 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 |
| CN104675857A (en) * | 2015-02-13 | 2015-06-03 | 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593941A (en) * | 2016-11-29 | 2017-04-26 | 东方电气集团东方汽轮机有限公司 | Rotor pump wheel installation positioning structure |
| 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 |
| CN111795000A (en) * | 2020-07-06 | 2020-10-20 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927585B (en) | 2018-05-22 |
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