CN106015086B - A kind of axial lock structure of compressor blade in the impeller wheel groove - Google Patents
A kind of axial lock structure of compressor blade in the impeller wheel groove Download PDFInfo
- Publication number
- CN106015086B CN106015086B CN201610384704.2A CN201610384704A CN106015086B CN 106015086 B CN106015086 B CN 106015086B CN 201610384704 A CN201610384704 A CN 201610384704A CN 106015086 B CN106015086 B CN 106015086B
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- Prior art keywords
- blade
- circumferential slot
- lock
- slot
- last years
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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
-
- 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
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
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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 axial lock structure of compressor blade in the impeller wheel groove, including blade, impeller and lock silk；It is provided with the circumferential slot of circumferencial direction on the wheel rim of the impeller, blade root slot corresponding with circumferential slot is provided on the blade root of the blade, when blade is installed in place in the impeller wheel groove, which is connected to circumferential slot；The lock silk is adapted to and runs through blade root slot and circumferential slot；An at least last years lock silk in the lock silk, and last years one end of lock silk is folded upward at；At least one last years circumferential slot in the circumferential slot, the last years circumferential slot have one section to stick up the notch convenient for last years lock silk.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, especially suitable for baby compressor.
Description
Technical field
The present invention relates to the axially position of compressor blade in the impeller wheel groove, specifically a kind of compressor blade exists
Axial lock structure in impeller race.
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 a compatible axial pass troughs 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, the axially mounted blade positioning method of large-scale compressor is typically in wheel rim, blade root bottom or blade root platform portion
Locating slot or location hole are opened in position, and the axially position of compressor blade is realized by locking key or screw.For medium and small compressor
Speech, since design space is small, generally use blade manufactures the monoblock type wheel disc being integrated with rotor.But the processing of this wheel disc
Cost is very high.If baby compressor can substantially reduce cost using assembled impeller.But it will be usually in, large-scale pressure
The locking mode being applicable on mechanism of qi uses on baby compressor, can not implement because baby compressor space limits.
Invention content
The purpose of the present invention is to solve the above problem, a kind of axial lock of compressor blade in the impeller wheel groove is provided
Determine structure.Its is simple in structure, easy to process, easy to assembly, can easier accomplish the size of very little.
Realize the technical scheme is that：A kind of axial lock structure of compressor blade in the impeller wheel groove, it is special
Sign is：Including blade, impeller and lock silk；The circumferential slot of circumferencial direction, the leaf of the blade are provided on the wheel rim of the impeller
Blade root slot corresponding with circumferential slot, when blade is installed in place in the impeller wheel groove, the blade root slot and circumferential slot are provided on root
Connection；The lock silk is adapted to and runs through blade root slot and circumferential slot；At least a last years lock silk in the lock silk, which locks silk
One end be folded upward at；At least one last years circumferential slot in the circumferential slot, the last years circumferential slot have one section to be locked convenient for last years
Silk sticks up the notch.
The cross sectional shape of the lock silk mutually agrees with the cross sectional shape of blade root slot and circumferential slot.
Particularly, the cross sectional shape of the lock silk is circular, square or triangle.
The blade root slot and the sealant that at circumferential slot upper opening, useful sealant seals.
Particularly, the lock silk all last years lock silk, all last years circumferential slots of circumferential slot.
The beneficial effects of the invention are as follows：
1, simple in structure, it is easy to process, it is easy to assembly, it can easier accomplish the size of very little.
2, applicability is wide, especially suitable for baby compressor.
Description of the drawings
Fig. 1 is to install vaned blade wheel structure schematic diagram；
Fig. 2 is the A enlarged drawings of Fig. 1；
Fig. 3 is sealed structural representation.
Figure label：1-blade, 2-blade roots, 3-impellers, 4-races, 5-wheel rims, 6-circumferential slots, 7-blade root slots,
8-last years circumferential slots, 9-lock silks, 10-last years lock silk, 11-sealants.
Specific implementation mode
As shown in Figure 1 to Figure 3：A kind of axial lock structure of compressor blade in the impeller wheel groove, including blade 1, leaf
Wheel 3 and lock silk 9；It is provided with the circumferential slot 6 of circumferencial direction on the wheel rim 5 of the impeller 3, is provided on the blade root 2 of the blade 1 and week
To 6 corresponding blade root slot 7 of slot, when blade 1 is installed in place in impeller race 4, which is connected to circumferential slot 6；Institute
Lock silk 9 is stated to be adapted to and through blade root slot 7 and circumferential slot 6；At least a last years lock silk 10 in the lock silk 9, which locks silk
10 one end is folded upward at；At least one last years circumferential slot 8 in the circumferential slot 6, the last years circumferential slot 8 have one section to be convenient for end
Leaf lock silk 10 sticks up the notch.The cross sectional shape of the lock silk 9 is circle.At the blade root slot 7 and 6 upper opening of circumferential slot,
The sealant 11 of useful sealant sealing.
The present invention assembling process be：First the blade 1 of first leaf is fitted into close in the race 4 with 8 side of last years circumferential slot,
After blade root slot 7 is aligned with circumferential slot 6, lock silk 9 is penetrated through circumferential slot 6,9 end of lock silk is made to be inserted into blade root slot 7.It is similar,
By only installation adjacent blades until last last years.Silk 10 will first be locked last years at this time to be fitted into last years circumferential slot 8, be reloaded into whole
Last blade of grade.Since 10 end of last years lock silk is bent over, last years will not interfere with when being packed into.After last years are packed into,
The last years lock that script bending is upwarped, 10 ends fold into blade root slot 7, complete whole grade blade assembly.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not limiting
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (5)
1. a kind of axial lock structure of compressor blade in the impeller wheel groove, it is characterised in that：Including blade, impeller and lock
Silk；It is provided with the circumferential slot of circumferencial direction on the wheel rim of the impeller, is provided on the blade root of the blade corresponding with circumferential slot
Blade root slot, when blade is installed in place in the impeller wheel groove, which is connected to circumferential slot；The lock silk adaptation and perfoliate-leaf
Root slot and circumferential slot；An at least last years lock silk in the lock silk, and last years one end of lock silk is folded upward at；The circumferential slot
In at least one last years circumferential slot, the last years circumferential slot have one section convenient for last years lock silk stick up the notch.
2. the axial lock structure of compressor blade in the impeller wheel groove according to claim 1, it is characterised in that：The lock
The cross sectional shape of silk mutually agrees with the cross sectional shape of blade root slot and circumferential slot.
3. the axial lock structure of compressor blade in the impeller wheel groove according to claim 1, it is characterised in that：The lock
The cross sectional shape of silk is circular, square or triangle.
4. the axial lock structure of compressor blade in the impeller wheel groove according to claim 1, it is characterised in that：The leaf
Root slot and the sealant that at circumferential slot upper opening, useful sealant seals.
5. the axial lock structure of compressor blade in the impeller wheel groove according to claim 1, it is characterised in that：The lock
Silk all last years lock silk, all last years circumferential slots of circumferential slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384704.2A CN106015086B (en) | 2016-06-02 | 2016-06-02 | A kind of axial lock structure of compressor blade in the impeller wheel groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384704.2A CN106015086B (en) | 2016-06-02 | 2016-06-02 | A kind of axial lock structure of compressor blade in the impeller wheel groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015086A CN106015086A (en) | 2016-10-12 |
| CN106015086B true CN106015086B (en) | 2018-11-09 |
Family
ID=57089528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610384704.2A Active CN106015086B (en) | 2016-06-02 | 2016-06-02 | A kind of axial lock structure of compressor blade in the impeller wheel groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015086B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623270B (en) * | 2021-08-24 | 2024-04-16 | 中国联合重型燃气轮机技术有限公司 | Locking device and gas compressor and gas turbine comprising same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904317A (en) * | 1974-11-27 | 1975-09-09 | Gen Electric | Bucket locking mechanism |
| US4915587A (en) * | 1988-10-24 | 1990-04-10 | Westinghouse Electric Corp. | Apparatus for locking side entry blades into a rotor |
| EP2075417B1 (en) * | 2007-12-27 | 2016-04-06 | Techspace Aero | Platform for a bladed wheel of a turbomachine, bladed wheel and compressor or turbomachine comprising such a bladed wheel |
| US8496439B2 (en) * | 2010-03-17 | 2013-07-30 | Siemens Energy, Inc. | Turbomachine blade locking structure including shape memory alloy |
| US9316106B2 (en) * | 2013-07-19 | 2016-04-19 | Siemens Energy, Inc. | Expanding lock pin for turbine side entry blade |
-
2016
- 2016-06-02 CN CN201610384704.2A patent/CN106015086B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106015086A (en) | 2016-10-12 |
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