CN204130055U - Lobe body key slot type model turbine runner - Google Patents
Lobe body key slot type model turbine runner Download PDFInfo
- Publication number
- CN204130055U CN204130055U CN201420478155.1U CN201420478155U CN204130055U CN 204130055 U CN204130055 U CN 204130055U CN 201420478155 U CN201420478155 U CN 201420478155U CN 204130055 U CN204130055 U CN 204130055U
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- China
- Prior art keywords
- lobe body
- blade
- model
- slot type
- lobe
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- Expired - Fee Related
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- 238000007596 consolidation process Methods 0.000 claims 1
- 230000001186 cumulative effect Effects 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 5
- 230000002441 reversible effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a kind of lobe body key slot type model turbine runner.Be made up of crown, lobe body keyed blade, lower ring, the first half of lobe body key slot type blade to be installed with the keyway above labeled with key and is coordinated, and the latter half of blade, with lobe body, ensures to work in coordination between blade.Processibility and the accuracy of model runner is ensured by the Dual positioning of keyway and lobe body.The cumulative errors that the utility model adopts keyway and lobe body Dual Positioning Technology to avoid simple lobe body structure model runner affect, and it also avoid the processing restriction of key slot type structural model runner.
Description
Technical field
The utility model relates to a kind of model mixed-flow and reversible turbine runner of new structure.
Background technology
Francis turbine is the type of service hydraulic turbine the most widely, is widely used in the large, medium and small power station of 30 meters to 500 meters each head sections, in the type in power station, occupies maximum proportion, and uses the trend that head increases in addition further.And reversible turbine is because it has stronger regulating action, can in electrical network peak regulation, fill out paddy, frequency modulation, phase modulation, bear emergency duty and in electrical network, play more and more important effect.No matter for Francis turbine or reversible turbine, model turbine test is all the important step of hydraulic development, and suitable model turbine structure accurately and reliably has important impact for what ensure model test.
What current model turbine runner adopted has key slot type structure and split-type structure, welded structure in one's early years no longer adopts because machining precision is low, split-type structure then can not ensure the accurate location of blade due to the impact of different lobe body cumulative errors, easily causes larger mismachining tolerance not also to be used gradually.The model runner of key slot type structure can ensure leaf position, ensure the precision of model runner, if but cannot when crown processes complete keyway, or cause the manufacture of model turbine to carry out, or only part arranges key in front of the blade, lacks the control to tail position, affects runner afterbody precision, impact blade outlet even owing to being subject to current in model test process produces vibration, and causes deformable blade or destruction.
Summary of the invention
The purpose of this utility model is mixed-flow and the reversible turbine model runner of openly a kind of new structure, the mixed-flow of this new structure and reversible turbine model runner adopt lobe body key slot type structure, the machining precision of runner can be improved, ensure the accuracy of model test.The utility model is achieved through the following technical solutions: a kind of lobe body key slot type model turbine runner, is made up of crown (1), lobe body keyed blade (2), lower ring (3); At the keyway (4) that the part processing that crown (1) radius is larger is equal with lobe body keyed blade (2) quantity; Lobe body keyed blade (2) first half is with key (6), connect by keyway (4) and key (6) location realizing lobe body keyed blade (2) and crown (1), adjacent petals body keyed blade (2) realizes the location of lobe body keyed blade (2) latter half by the cooperation between lobe body (7); During the assembling of model turbine runner, forward part key (6) in lobe body keyed blade (2) inserts in the keyway (4) of crown (1), the lobe body (7) of latter half cooperatively interacts, again lower ring (3) is fixed on the outer rim of blade (5), by this mode, crown (1), lobe body keyed blade (2) and lower ring (3) assembly is become model turbine runner.
Technique effect
The utility model adopts lobe body key slot type to complete the processing of model turbine runner first.The cumulative errors adopting keyway and lobe body Dual Positioning Technology to avoid simple lobe body structure model runner affect, and it also avoid the processing restriction of key slot type structural model runner.The utility model tool has the following advantages:
1) connecting by the upper keyway (4) of crown (1) and lobe body keyed blade (2) upper front portion key (6), achieve lobe body keyed blade (2) and the accurate location of crown (1), ensure that the machining precision of runner larger radius portion;
2) blade (5) and lobe body (7) as a whole parts, ensure that the rigidity of blade afterbody, avoid to lack blade afterbody to control and the runner tail vibration that causes and the destruction to runner;
3) whole lobe body (7) cooperatively interacts and forms entirety, ensure that the cooperation between different leaves, ensure that the machining precision of runner radius smaller portions.
Accompanying drawing explanation
Fig. 1. lobe body key slot type model turbine rotaring wheel structure front view
Fig. 2. lobe body key slot type model turbine rotaring wheel structure vertical view
Fig. 3. lobe body key slot type model turbine crown 1 front view
Fig. 4. lobe body key slot type model turbine crown 1 vertical view
Fig. 5. lobe body key slot type model turbine blade 2 front view
Fig. 6. lobe body key slot type model turbine blade 2 vertical view
In accompanying drawing:
1. crown
2. lobe body keyed blade
3. descend ring
4. keyway
5. blade
6. key
7. lobe body
Embodiment
As shown in Figure 3, Figure 4, keyway 4 is processed at the crown 1 of model runner; As shown in Figure 5, Figure 6 at lobe body keyed blade 2 upper front portion with key 6, latter half is with lobe body 7.
As shown in Figure 1 and Figure 2, during the assembling of model turbine runner, the forward part key 6 on lobe body keyed blade 2 inserts in the keyway 4 of crown 1, and the lobe body 7 of latter half cooperatively interacts, and completes the assembling of crown 1, lobe body keyed blade 2 and lower ring 3.The model runner assembled is coordinated by key 6 and keyway 4, the integraty of blade 5 and lobe body 7 and adjacent petals body keyed blade 2 lobe bodies 7 coordinate the machining precision that ensure that model runner.
Claims (3)
1. a lobe body key slot type model turbine runner, is characterized in that: be made up of crown (1), lobe body keyed blade (2), lower ring (3); At the keyway (4) that the part processing that crown (1) radius is larger is equal with lobe body keyed blade (2) quantity; Lobe body keyed blade (2) first half is with key (6), connect by keyway (4) and key (6) location realizing lobe body keyed blade (2) and crown (1), adjacent petals body keyed blade (2) realizes the location of lobe body keyed blade (2) latter half by the cooperation between lobe body (7); During the assembling of model turbine runner, forward part key (6) in lobe body keyed blade (2) inserts in the keyway (4) of crown (1), the lobe body (7) of latter half cooperatively interacts, again lower ring (3) is fixed on the outer rim of blade (5), by this mode, crown (1), lobe body keyed blade (2) and lower ring (3) assembly is become model turbine runner.
2. a kind of lobe body key slot type model turbine runner according to claim 1, is characterized in that: described lobe body keyed blade (2) is by blade (5), key (6) and the as a whole parts of lobe body (7) three thin consolidation.
3. a kind of lobe body key slot type model turbine runner according to claim 1, is characterized in that: the latter half of described lobe body keyed blade (2) adopts lobe body (7) structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478155.1U CN204130055U (en) | 2014-08-22 | 2014-08-22 | Lobe body key slot type model turbine runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478155.1U CN204130055U (en) | 2014-08-22 | 2014-08-22 | Lobe body key slot type model turbine runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204130055U true CN204130055U (en) | 2015-01-28 |
Family
ID=52386388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420478155.1U Expired - Fee Related CN204130055U (en) | 2014-08-22 | 2014-08-22 | Lobe body key slot type model turbine runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204130055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927451A (en) * | 2016-06-06 | 2016-09-07 | 哈尔滨电机厂有限责任公司 | Trapezoid groove mosaic structure for blades and upper canopy of water turbine model runner |
-
2014
- 2014-08-22 CN CN201420478155.1U patent/CN204130055U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927451A (en) * | 2016-06-06 | 2016-09-07 | 哈尔滨电机厂有限责任公司 | Trapezoid groove mosaic structure for blades and upper canopy of water turbine model runner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 |