CN102003415B - Structure for clamping single-stage high-speed centrifugal fan impeller - Google Patents
Structure for clamping single-stage high-speed centrifugal fan impeller Download PDFInfo
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- CN102003415B CN102003415B CN2010105560497A CN201010556049A CN102003415B CN 102003415 B CN102003415 B CN 102003415B CN 2010105560497 A CN2010105560497 A CN 2010105560497A CN 201010556049 A CN201010556049 A CN 201010556049A CN 102003415 B CN102003415 B CN 102003415B
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- 230000009191 jumping Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The invention relates to a structure for clamping a single-stage high-speed centrifugal fan impeller, which is provided with a positioning hole and a center screw hole on a rotating shaft, wherein the front end surface of an impeller is provided with a positioning lug boss, and the back side of the impeller is provided with a positioning lug boss; one end of a C-shaped ring is a flat surface, the other end of the C-shaped ring is a conical surface, the flat surface end of the C-shaped ring is provided with a center through hole, the conical surface end of the C-shaped ring is provided with a center through hole, and an included angle A is formed between the conical surface of the C-shaped ring and the vertical surface of a center line; the positioning lug boss on the back side of the impeller is arranged in the positioning hole of the rotating shaft; and the center through hole of the conical surface end of the C-shaped ring is sleeved on the positioning lug boss of the front end surface of the impeller, and a shouldered screw nut tightly presses the flat surface of the C-shaped ring through a stud bolt screwed into the center screw hole of the rotating shaft. The structure provided by the invention is simple, compact and reasonable, and can effectively compensate the stress relaxation of the screw bolt, prevent the axial jumping of the impeller and ensure the stable operation of the impeller.
Description
Technical field
The present invention relates to a kind of clamping structure of single-stage high-speed centrifugal blower fan blade wheel, specifically it is a kind of locating clip locking structure of impeller, guarantees the impeller reliability of operation, belongs to the mechanical structure technical field.
Background technique
In prior art; Impeller in the single-stage high-speed centrifugal blower generally all is to be fixed on the rotatingshaft through bolt and nut; And use lock washer to prevent that nut from getting loose, in long-time using process, because the stress relaxation phenomenon of bolt; Make impeller in operation process, be easy to generate axial float, influence the smooth running of impeller.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby a kind of clamping structure of single-stage high-speed centrifugal blower fan blade wheel is provided, this structure can effectively compensate the stress relaxation of bolt, prevents the impeller axial float, guarantees the smooth running of impeller.
According to technological scheme provided by the invention, the clamping structure of single-stage high-speed centrifugal blower fan blade wheel
Comprise impeller, rotatingshaft, stud bolt, C shape ring, band shoulder nut, characteristic is: said rotatingshaft is provided with a rotatingshaft positioning hole and a rotatingshaft center screw; Said impeller front-end face is provided with a positioning boss, and the back side of impeller is provided with a positioning boss; One end of said C shape ring is the plane, and the other end is the conical surface, and C shape plane of a loop end is provided with a central through bore, and C shape annular conical surface end is provided with a central through bore, and the vertical surface of C shape annular conical surface and center line forms included angle A;
The positioning boss at the said impeller back side is installed in the positioning hole of rotatingshaft; C shape annular conical surface end central through bore is set on the impeller front-end face positioning boss, and band shoulder nut compresses C shape plane of a loop through the stud bolt that screws in the rotatingshaft center screw.
Said stud bolt one end is provided with flat gesture.
Said included angle A is 3～5 degree.
Compared with present technology the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; Can effectively compensate the stress relaxation of bolt, prevent the impeller axial float, guarantee the smooth running of impeller.
Description of drawings
Fig. 1 is a structure scheme of installation of the present invention.
Embodiment
Following the present invention will combine the embodiment in the accompanying drawing to further describe:
As shown in Figure 1: as to the present invention includes impeller 1, rotatingshaft 2, stud bolt 3, C shape ring 4, band shoulder nut 5 etc.
Said rotatingshaft 2 is provided with a positioning hole 2-1 and a center screw 2-2; Said impeller 1 front-end face is provided with a positioning boss 1-1, and the back side of impeller 1 is provided with a positioning boss 1-2; One end of said C shape ring 4 is plane 4-1, and the other end is conical surface 4-2, and 4-1 end in plane is provided with a central through bore 4-3, and conical surface 4-2 end is provided with a central through bore 4-4, and the vertical surface of C shape annular conical surface 4-2 and center line forms included angle A, and included angle A is generally 3～5 degree.
The positioning boss 1-2 at the said impeller back side is installed in the positioning hole 2-1 of rotatingshaft; C shape annular conical surface end central through bore 4-4 is set on the positioning boss 1-1 of impeller front-end face, and band shoulder nut 5 compresses the plane 4-1 of C shape ring through the stud bolt 3 that screws in the rotatingshaft center screw 2-2, thereby impeller 1 is fixed on the rotatingshaft 2.Stud bolt 3 one ends are provided with flat gesture 3-1, so that mounting or dismounting.
Working principle of the present invention is following:
As shown in Figure 1: tighten band shoulder nut 5, C shape is encircled 4 stress deformations, and included angle A is diminished by 3～5 initial degree gradually, and until the A=0 degree, this moment, impeller 1 quilt was clamped on the rotatingshaft 2 location fully.Stud bolt 3 can produce stress relaxation phenomenon under long-term clamping force effect; Stud bolt 3 plastic deformations, the axial pressing force of impeller 1 diminishes, and this moment, C shape ring 4 compensated the amount of plastic deformation of stud bolt 3 through resiliently deformable; A becomes 1～2 degree by 0 degree; The impacting force of impeller is still remained within the scope of design, thereby prevented the axial float of impeller 1, guarantee the smooth long term running of impeller 1.
Claims (3)
1. the clamping structure of a single-stage high-speed centrifugal blower fan blade wheel; Comprise impeller (1), rotatingshaft (2), stud bolt (3), C shape ring (4), band shoulder nut (5), it is characterized in that: said rotatingshaft (2) is provided with a positioning hole (2-1) and a center screw (2-2); Said impeller (1) front-end face is provided with a positioning boss (1-1), and the back side of impeller (1) is provided with a positioning boss (1-2); One end of said C shape ring (4) is plane (4-1); The other end is the conical surface (4-2); The planar ends (4-1) of C shape ring is provided with a central through bore (4-3); The conical surface end (4-2) of C shape ring is provided with a central through bore (4-4), and the conical surface (4-2) of C shape ring forms included angle A with the vertical surface of center line; The positioning boss (1-2) at the said impeller back side is installed in the rotatingshaft positioning hole (2-1); C shape annular conical surface end central through bore (4-4) is set on the positioning boss (1-1) of impeller front-end face, and band shoulder nut (5) compresses C shape plane of a loop (4-1) through the stud bolt (3) that screws in the rotatingshaft center screw (2-2).
2. the clamping structure of single-stage high-speed centrifugal blower fan blade wheel according to claim 1 is characterized in that said stud bolt (3) one ends are provided with flat gesture (3-1).
3. the clamping structure of single-stage high-speed centrifugal blower fan blade wheel according to claim 1 is characterized in that said included angle A is 3～5 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105560497A CN102003415B (en) | 2010-11-24 | 2010-11-24 | Structure for clamping single-stage high-speed centrifugal fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105560497A CN102003415B (en) | 2010-11-24 | 2010-11-24 | Structure for clamping single-stage high-speed centrifugal fan impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102003415A CN102003415A (en) | 2011-04-06 |
| CN102003415B true CN102003415B (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105560497A Active CN102003415B (en) | 2010-11-24 | 2010-11-24 | Structure for clamping single-stage high-speed centrifugal fan impeller |
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| CN (1) | CN102003415B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090109A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal type air blower |
| CN116749078A (en) * | 2016-06-16 | 2023-09-15 | 中国航发常州兰翔机械有限责任公司 | Abrasive flow clamp for centrifugal impeller |
| CN108274284A (en) * | 2018-03-27 | 2018-07-13 | 江阴鑫联金属制品有限公司 | The impeller of passenger car turbocharger produces fixture |
| CN110701101A (en) * | 2019-10-14 | 2020-01-17 | 中国北方发动机研究所(天津) | Compressor impeller with elastic table |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290018A (en) * | 2008-05-23 | 2008-10-22 | 无锡金露通用机械有限公司 | High speed centrifugal blower fan blade wheel and high speed axis linking structure |
| CN101725568A (en) * | 2009-11-20 | 2010-06-09 | 无锡杰尔压缩机有限公司 | Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan |
| CN201908874U (en) * | 2010-11-24 | 2011-07-27 | 无锡杰尔压缩机有限公司 | Clamping structure of single-stage high speed centrifugal fan impeller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080232962A1 (en) * | 2007-03-20 | 2008-09-25 | Agrawal Giridhari L | Turbomachine and method for assembly thereof using a split housing design |
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2010
- 2010-11-24 CN CN2010105560497A patent/CN102003415B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290018A (en) * | 2008-05-23 | 2008-10-22 | 无锡金露通用机械有限公司 | High speed centrifugal blower fan blade wheel and high speed axis linking structure |
| CN101725568A (en) * | 2009-11-20 | 2010-06-09 | 无锡杰尔压缩机有限公司 | Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan |
| CN201908874U (en) * | 2010-11-24 | 2011-07-27 | 无锡杰尔压缩机有限公司 | Clamping structure of single-stage high speed centrifugal fan impeller |
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|---|---|
| CN102003415A (en) | 2011-04-06 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Structure for clamping single-stage high-speed centrifugal fan impeller Effective date of registration: 20131119 Granted publication date: 20121121 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Jieer Compressor Co., Ltd. Registration number: 2013990000868 |
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Address after: 214106 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi Patentee after: JIANGSU GL-TURBO CORPORATION Address before: 214117 Jiangsu Province, Wuxi City Lake District Xishan town Ganlu Gan thick road No. 52 Patentee before: Wuxi Jieer Compressor Co., Ltd. |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180327 Granted publication date: 20121121 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: JIANGSU GL-TURBO CORPORATION Registration number: 2013990000868 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Structure for clamping single-stage high-speed centrifugal fan impeller Effective date of registration: 20180327 Granted publication date: 20121121 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Wuxi, Xishan branch Pledgor: JIANGSU GL-TURBO CORPORATION Registration number: 2018990000233 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20180327 Registration number: 2013990000868 Pledgor after: JIANGSU GL-TURBO CORPORATION Pledgor before: Wuxi Jieer Compressor Co., Ltd. |
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| PM01 | Change of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201014 Granted publication date: 20121121 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi Xishan branch Pledgor: GL-TURBO LLC Registration number: 2018990000233 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |