CN108757569A - Novel pressure mechanism of qi blade and wheel disc connection structure - Google Patents
Novel pressure mechanism of qi blade and wheel disc connection structure Download PDFInfo
- Publication number
- CN108757569A CN108757569A CN201810572664.3A CN201810572664A CN108757569A CN 108757569 A CN108757569 A CN 108757569A CN 201810572664 A CN201810572664 A CN 201810572664A CN 108757569 A CN108757569 A CN 108757569A
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- China
- Prior art keywords
- blade
- wheel disc
- aunular sheet
- limited aunular
- limiting
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- 238000009434 installation Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000005498 polishing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/324—Blades
-
- 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
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/322—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
Novel pressure mechanism of qi blade and wheel disc connection structure solve the problems, such as that traditional tenon, tongue-and-groove connection structure easily occur stress concentration in the locating slot of wheel disc and crackle caused to generate.The present invention includes blade, wheel disc and limited aunular sheet, and there is blade blade root, blade root to have blade limiting slot；There is wheel disc tongue-and-groove, limited aunular sheet to be bolted on wheel disc.There is wheel disc limiting through hole in tongue-and-groove, wheel disc limiting through hole edge has limiting slot chamfering, blade is attached with wheel disc using blade root and wheel disc chase mortise, and is cooperated by blade limiting slot, wheel disc limiting through hole and limited aunular sheet and realized the axially position of blade.The present invention provides a kind of, and the compressor blade blade disk system with dynamic balancing regulating power and smaller stress locating slot improves the service life of turbine disk system while ensureing unit safety operation.
Description
Technical field
The present invention relates to compressor part connection structure, specifically a kind of novel pressure mechanism of qi blade connects knot with wheel disc
Structure.
Background technology
Compressor be it is a kind of using high-speed rotating blade to air work done to improve the device of air pressure, wherein calming the anger
The turbine disk system of machine is one of critical piece of compressor.Since the rotating speed of compressor work is very high, and run work
Condition is complicated, and existing tenon, tongue-and-groove connection structure stress concentration phenomenon easily occur in the locating slot of wheel disc, this will cause to split
The generation of line, until fracture accident occurs.Meanwhile amount of unbalance can cause the generation of rotor vibrations failure, threaten unit just
Often operation.Therefore, a kind of compressor blade blade disk system with dynamic balancing regulating power and smaller stress locating slot is to ensureing
Unit safety operation is of great immediate significance.
Invention content
The purpose of the present invention is to solve traditional tenon, tongue-and-groove connection structures stress easily occurs in the locating slot of wheel disc
Concentration, which causes to crack, to be led to the problem of, and then provides novel pressure mechanism of qi blade and wheel disc connection structure.
Technical scheme of the present invention：
Novel pressure mechanism of qi blade and wheel disc connection structure include blade, wheel disc and limited aunular sheet, and blade includes blade root and leaf
Body, blade and blade root from top to bottom arrange and are cast integrally, and blade limiting slot, blade and wheel disc are machined on the blade root of blade
Connection installation is established by blade root, limited aunular sheet one end is fixed on by screw bolt and nut cooperation on wheel disc, and the other end is mounted on
In blade limiting slot, realize that limited aunular sheet limits blade and installed in the axial position of wheel disc.
Preferably：The wheel disc is cylinder, and the side of wheel disc is machined with tongue-and-groove, and the bottom surface of wheel disc processes restraining position ring block
Piece mounting base, is machined with wheel disc bolt hole in limited aunular sheet mounting base, and the bottom surface of limited aunular sheet mounting base and wheel disc, which is constituted, to be limited
Ring plate mounting groove.
Preferably：One end of the tongue-and-groove is provided with wheel disc limiting through hole, wheel disc limiting through hole and limited aunular sheet mounting groove
Connection.
Preferably：Circumferentially along wheel disc, each blade is solid by individually assembling a limited aunular sheet for the blade
Fixed, blade number is 15-35 branch, and the number of tongue-and-groove is identical as blade number.
Preferably：The edge of the wheel disc limiting through hole is machined with limiting through hole chamfering, the chamfering of limiting through hole chamfering
Amount is 1.5 ± 0.5mm.
Preferably：The limited aunular sheet is arc-shaped, and interior arc radius is 171.5 ± 0.5mm, and outer arc radius is 181.5
± 0.5mm, width are 10 ± 0.1mm, and thickness is 5.8 ± 0.05mm, and both ends are provided with limited aunular sheet bolt hole, limited aunular sheet bolt
Hole site is corresponding with wheel disc bolt hole position.
The technical proposal of the invention is realized in this way：First by blade along wheel disc circumferentially and pass through tongue-and-groove phase
Interworking, which attaches together, matches, and is then mounted on limited aunular sheet in wheel disc limiting through hole and blade limiting slot by limited aunular sheet mounting groove,
And limited aunular sheet bolt hole is directed at wheel disc bolt hole, it is finally fixed using screw bolt and nut, realizes that limited aunular sheet limits blade
Mounted on the purpose of the axial position of wheel disc.
The invention has the advantages that：The present invention's is related to novel pressure mechanism of qi blade and wheel disc connection structure, provides
A kind of compressor blade blade disk system with dynamic balancing regulating power and smaller stress locating slot, is provided in one end of tongue-and-groove
Wheel disc limiting through hole, and wheel disc limiting through hole installation position is in limited aunular sheet mounting groove groove, and it is logical in wheel disc limit
Limiting through hole chamfering is arranged in the edge in hole, can obviously reduce the stress in wheel disc limiting slot, ensures unit safety operation；Blade prolongs
Wheel disc circumferentially, each blade is fixed by individually assembling a limited aunular sheet, and the assembly and disassembly that can carry out single branch blade are safeguarded,
Flexible, the easy to operate feature with assembly；And it can be by polishing and changing the matter of fixed limited aunular sheet screw bolt and nut
It measures to adjust the dynamic balancing of turbine disk system, is further ensured that unit safety operation.
Description of the drawings
Fig. 1 is compressor blade blade disk system schematic diagram；
Fig. 2 is blade construction schematic diagram；
Fig. 3 is wheeling disk structure front view；
Fig. 4 is wheeling disk structure schematic diagram；
Fig. 5 is the connection diagram of blade and limited aunular sheet；
Fig. 6 is the connection diagram of wheel disc and limited aunular sheet；
Fig. 7 is enlarged drawing at the A of Fig. 6；
Fig. 8 is blade, limited aunular sheet and wheel disc connection diagram；
Fig. 9 is the schematic diagram of limited aunular sheet；
1- blades in figure, 2- wheel discs, 3- limited aunular sheets, 11- blade roots, 12- blade limiting slots, 13- blades, 21- tongue-and-grooves,
22- wheel disc limiting through hole, 23- limiting through hole chamferings, 24- limited aunular sheet mounting grooves, 25- wheel disc bolts hole, 26- limited aunular sheets peace
Fill seat, 31- limited aunular sheet bolts hole.
Specific implementation mode
Specific implementation mode one：Illustrate present embodiment, the novel pressure mechanism of qi blade of present embodiment in conjunction with Fig. 1 to Fig. 9
Include blade 1, wheel disc 2 and limited aunular sheet 3 with wheel disc connection structure, blade 1 includes blade root 11 and blade 13, blade 13 and blade root
11 from top to bottom arrange and are cast integrally, and blade limiting slot 12 is machined on the blade root 11 of blade 1, and blade 1 passes through with wheel disc 2
Blade root 11 establishes connection installation, and 3 one end of limited aunular sheet is fixed on by screw bolt and nut cooperation on wheel disc 2, and the other end is mounted on
In blade limiting slot 12, realize that limited aunular sheet 3 limits blade 1 and installed in the axial position of wheel disc 2.So set, blade 1 is prolonged
Circumferentially and by the mutual cooperation of tongue-and-groove 21 assembling for wheel disc 2, limited aunular sheet 3 is then passed through into limited aunular sheet mounting groove 24
It is installed in wheel disc limiting through hole 22 and blade limiting slot 12, and by the threaded hole alignment limited aunular sheet on limited aunular sheet 3
Bolt hole 25 on 24 wall of slot side, is finally fixed using screw bolt and nut, realizes that limited aunular sheet 3 limits blade 1 and is mounted on wheel disc 2
Axial position purpose.
Specific implementation mode two：Illustrate present embodiment, the novel pressure mechanism of qi blade of present embodiment in conjunction with Fig. 3 to Fig. 7
With wheel disc connection structure, the wheel disc 2 is cylinder, and the side of wheel disc 2 is machined with tongue-and-groove 21, and the bottom surface of wheel disc 2 is machined with
Limited aunular sheet mounting base 26 is machined with wheel disc bolt hole 25, limited aunular sheet mounting base 26 and wheel disc 2 in limited aunular sheet mounting base 26
Bottom surface constitute limited aunular sheet mounting groove 24.So set, the side of blade root 11 has the blade limiting slot 12 of groove-like, can incite somebody to action
Limited aunular sheet 3 is mounted on by limited aunular sheet mounting groove 24 in wheel disc limiting through hole 22 and blade limiting slot 12, realizes spacing ring
Piece 3 limits the purpose that blade 1 is mounted on the axial position of wheel disc 2.
Specific implementation mode three：Illustrate present embodiment, the novel pressure mechanism of qi blade of present embodiment in conjunction with Fig. 1 to Fig. 7
It is provided with wheel disc limiting through hole 22, wheel disc limiting through hole 22 and limited aunular sheet with one end of wheel disc connection structure, the tongue-and-groove 21
Mounting groove 24 is connected to.So set, can 22 He of wheel disc limiting through hole be mounted on by limited aunular sheet mounting groove 24 for limited aunular sheet 3
In blade limiting slot 12, realize that limited aunular sheet 3 limits the purpose that blade 1 is mounted on the axial position of wheel disc 2.
Specific implementation mode four：Embodiment is described with reference to Fig. 1, the novel pressure mechanism of qi blade and wheel disc of present embodiment
Connection structure, circumferentially along wheel disc 2, each blade 1 is solid by individually assembling 1 limited aunular sheet 3 for the blade 1
Fixed, 1 number of blade is 15-35 branch, and the number of tongue-and-groove 21 is identical as blade number.So set, each blade 1 is by individually filling
It is fixed with a limited aunular sheet 3, the assembly and disassembly that can carry out single branch blade 1 are safeguarded, the feature for having assembly flexible, easy to operate.
Specific implementation mode five：Illustrate present embodiment, the novel pressure mechanism of qi blade of present embodiment in conjunction with Fig. 3 to Fig. 6
It is machined with limiting through hole chamfering 23, limiting through hole chamfering 23 with the edge of wheel disc connection structure, the wheel disc limiting through hole 22
Chamfer amount be 1.5 ± 0.5mm.So set, the edge of wheel disc limiting through hole 22 has limiting through hole chamfering 23, wheel can be reduced
The stress concentration at 22 edge of disk limiting slot improves the service life of turbine disk system.
Specific implementation mode six：Illustrate present embodiment, the novel pressure mechanism of qi blade of present embodiment in conjunction with Fig. 7 to Fig. 9
With wheel disc connection structure, the limited aunular sheet 3 is arc-shaped, and interior arc radius is 171.5 ± 0.5mm, and outer arc radius is 181.5
± 0.5mm, width are 10 ± 0.1mm, and thickness is 5.8 ± 0.05mm, and both ends are provided with limited aunular sheet bolt hole 31, limited aunular sheet spiral shell
31 position of keyhole is corresponding with 25 position of wheel disc bolt hole.Screw bolt and nut can be used to fix limited aunular sheet 3 and wheel disc 2, it can
The dynamic balancing of turbine disk system is adjusted by polishing and changing the quality of 3 screw bolt and nut of fixed limited aunular sheet, further
Ensure unit safety operation.
Present embodiment is only to the exemplary description of this patent does not limit its scope of protection, people in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (6)
1. novel pressure mechanism of qi blade and wheel disc connection structure, including blade (1), wheel disc (2) and limited aunular sheet (3), feature exists
In：The blade (1) includes blade root (11) and blade (13), and blade (13) and blade root (11) from top to bottom arrange and are cast as
Integrally, blade limiting slot (12) is machined on the blade root (11) of blade (1), blade (1) passes through blade root (11) with wheel disc (2) and establishes
Connection installation, limited aunular sheet (3) one end are fixed on by screw bolt and nut cooperation on wheel disc (2), and the other end is limited mounted on blade
In position slot (12), realize that limited aunular sheet (3) limits blade (1) and installed in the axial position of wheel disc (2).
2. novel pressure mechanism of qi blade according to claim 1 and wheel disc connection structure, it is characterised in that：The wheel disc
(2) it is cylinder, the side of wheel disc (2) is machined with tongue-and-groove (21), and the bottom surface of wheel disc (2) is machined with limited aunular sheet mounting base
(26), wheel disc bolt hole (25), the bottom of limited aunular sheet mounting base (26) and wheel disc (2) are machined in limited aunular sheet mounting base (26)
Face constitutes limited aunular sheet mounting groove (24).
3. novel pressure mechanism of qi blade according to claim 2 and wheel disc connection structure, it is characterised in that：The tongue-and-groove
(21) one end is provided with wheel disc limiting through hole (22), and wheel disc limiting through hole (22) is connected to limited aunular sheet mounting groove (24).
4. novel pressure mechanism of qi blade according to claim 2 or 3 and wheel disc connection structure, it is characterised in that：The leaf
Piece (1) circumferentially along wheel disc (2), by individually assembling 1 limited aunular sheet (3) fixed, blade (1) by each blade (1)
Number is 15-35 branch, and the number of tongue-and-groove (21) is identical as blade number.
5. novel pressure mechanism of qi blade according to claim 3 and wheel disc connection structure, it is characterised in that：The wheel disc limit
The edge of position through-hole (22) is machined with limiting through hole chamfering (23), and the chamfer amount of limiting through hole chamfering (23) is 1.5 ± 0.5mm.
6. novel pressure mechanism of qi blade according to claim 1 and wheel disc connection structure, it is characterised in that：The spacing ring
Piece (3) is arc-shaped, and interior arc radius is 171.5 ± 0.5mm, and outer arc radius is 181.5 ± 0.5mm, and width is 10 ± 0.1mm,
Thickness is 5.8 ± 0.05mm, and both ends are provided with limited aunular sheet bolt hole (31), limited aunular sheet bolt hole (31) position and wheel disc bolt
Hole (25) position is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572664.3A CN108757569A (en) | 2018-06-07 | 2018-06-07 | Novel pressure mechanism of qi blade and wheel disc connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572664.3A CN108757569A (en) | 2018-06-07 | 2018-06-07 | Novel pressure mechanism of qi blade and wheel disc connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757569A true CN108757569A (en) | 2018-11-06 |
Family
ID=64000149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810572664.3A Pending CN108757569A (en) | 2018-06-07 | 2018-06-07 | Novel pressure mechanism of qi blade and wheel disc connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757569A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2746431A1 (en) * | 2008-12-11 | 2010-06-17 | Turbomeca | Turbine wheel provided with an axial retention device that locks blades in relation to a disk |
| CN101956575A (en) * | 2009-07-14 | 2011-01-26 | 通用电气公司 | Turbine vane lockwire rotation prevention |
| CN102797699A (en) * | 2011-05-26 | 2012-11-28 | 通用电气公司 | Gas turbine compressor last stage rotor blades with axial retention |
| CN105221478A (en) * | 2015-09-17 | 2016-01-06 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of compressor rotor blade stop ring and there is its impeller |
| CN208268114U (en) * | 2018-06-07 | 2018-12-21 | 哈尔滨电气股份有限公司 | Novel pressure mechanism of qi blade and wheel disc connection structure |
-
2018
- 2018-06-07 CN CN201810572664.3A patent/CN108757569A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2746431A1 (en) * | 2008-12-11 | 2010-06-17 | Turbomeca | Turbine wheel provided with an axial retention device that locks blades in relation to a disk |
| CN101956575A (en) * | 2009-07-14 | 2011-01-26 | 通用电气公司 | Turbine vane lockwire rotation prevention |
| CN102797699A (en) * | 2011-05-26 | 2012-11-28 | 通用电气公司 | Gas turbine compressor last stage rotor blades with axial retention |
| CN105221478A (en) * | 2015-09-17 | 2016-01-06 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of compressor rotor blade stop ring and there is its impeller |
| CN208268114U (en) * | 2018-06-07 | 2018-12-21 | 哈尔滨电气股份有限公司 | Novel pressure mechanism of qi blade and wheel disc connection structure |
Non-Patent Citations (1)
| Title |
|---|
| 王国顺等: "机械制造技术 上册", 31 December 2013, 武汉大学出版社, pages: 217 * |
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