CN102720679A - Stably operating fan - Google Patents
Stably operating fan Download PDFInfo
- Publication number
- CN102720679A CN102720679A CN2012101692068A CN201210169206A CN102720679A CN 102720679 A CN102720679 A CN 102720679A CN 2012101692068 A CN2012101692068 A CN 2012101692068A CN 201210169206 A CN201210169206 A CN 201210169206A CN 102720679 A CN102720679 A CN 102720679A
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- CN
- China
- Prior art keywords
- pivot
- cover plate
- impeller
- output shaft
- motor output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a stably operating fan, which comprises an impeller, a motor output shaft and a cover plate, wherein a pivot is arranged in the center of the impeller; the impeller is arranged on the motor output shaft; an outer surface of the motor output shaft is flush with that of the pivot; the cover plate is tightly close to the outer surface of the pivot and is connected with the motor output shaft through a first hexagon bolt; two first screw holes are symmetrically formed on the outer surface of the pivot; two second screw holes which are matched with the first screw holes are formed on the cover plate; and after the second screw holes on the cover plate are aligned with the first screw holes on the pivot, the cover plate is connected with the pivot through a fastener. After the stably operating fan in the invention is used for a long time, although the cover plate is rotated along with the impeller, and the hexagon bolt is loosened, the connection between the cover plate and the pivot can be guaranteed through the fastener, the axial movement of the impeller is avoided, the operating stability of the fan is improved, the condition that the impeller drops out of the motor output shaft is avoided, and the potential safety hazard is eliminated.
Description
Technical field
The present invention relates to a kind of blower fan, relate in particular to a kind of stable blower fan.
Background technique
Blower fan is the mechanical energy that relies on input, improves supply gas the side by side machinery of body of gas pressure, and is extensive in sector applications such as power plant, mines.Prior motor generally comprises motor and impeller, and blower fan by the rotation of driven by motor impeller, is realized the dispatch to gas thereby form draught head when operation.When impeller is installed, move axially, be typically provided with cover plate in order to prevent impeller; Concrete structure is like accompanying drawing 1, shown in 2; Impeller 1 central authorities are provided with pivot 2, and impeller 1 is arranged on the motor output shaft 3, and the outer surface of motor output shaft 3 is equal with pivot 2 outer surfaces; Cover plate 4 is near pivot 2 outer surfaces, and links to each other with motor output shaft 3 through hex head bolt 5.There is following defective in the blower fan of this spline structure: the rotation of driven by motor impeller; Cover plate is along with impeller rotates together, and after long-time the use, hex head bolt can become flexible; Make impeller move axially; Influence the stability of fan operation, the come off situation of motor output shaft of impeller has more likely taken place, caused potential safety hazard.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: proposed a kind of impeller of avoiding axially movable stable blower fan takes place.
Technical solution of the present invention is achieved in that a kind of stable blower fan; Comprise impeller, motor output shaft, cover plate, said impeller central authorities are provided with pivot, and said impeller is arranged on the motor output shaft; The outer surface of said motor output shaft is equal with the pivot outer surface; Said cover plate is near the pivot outer surface, and links to each other with motor output shaft through first hex head bolt, and symmetry has two first tapped holes on the outer surface of said pivot; Have two second tapped holes that are complementary with first tapped hole on the said cover plate; Second tapped hole on the said cover plate links to each other cover plate through fastening piece with after first tapped hole on the pivot aligns with pivot.
Preferably, said fastening piece is second hex head bolt.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
Stable blower fan of the present invention, symmetry has two first tapped holes on the outer surface of pivot, has two second tapped holes that are complementary with first tapped hole on the cover plate; Second tapped hole on the cover plate links to each other cover plate through fastening piece, after long-time the use with after first tapped hole on the pivot aligns with pivot; Though cover plate is loosening along with impeller rotation together can cause hex head bolt to take place; But fastening piece can guarantee being connected of cover plate and pivot, avoids impeller to move axially, and has increased the stability of fan operation; Avoid taking place the come off situation of motor output shaft of impeller, eliminated potential safety hazard.
Description of drawings
Below in conjunction with accompanying drawing technological scheme of the present invention is described further:
Accompanying drawing 1 is the plan view of the stable blower fan of existing technology;
Accompanying drawing 2 is the exploded view of the stable blower fan of existing technology;
Accompanying drawing 3 is the plan view of the stable blower fan of existing technology;
Accompanying drawing 4 is the exploded view of the stable blower fan of existing technology;
Wherein: 1, impeller; 2, pivot; 3, motor output shaft; 4, cover plate; 5, hex head bolt; 6, first hex head bolt; 7, first tapped hole; 8, second tapped hole; 9, second hex head bolt.
Embodiment
Below in conjunction with accompanying drawing the present invention is described.
Like accompanying drawing 3, the of the present invention a kind of stable blower fan shown in 4; Comprise impeller 1, motor output shaft 3, cover plate 4, said impeller 1 central authorities are provided with pivot 2, and said impeller 1 is arranged on the motor output shaft 3; The outer surface of said motor output shaft 3 is equal with pivot 2 outer surfaces; Said cover plate 4 is near pivot 2 outer surfaces, and links to each other with motor output shaft 3 through first hex head bolt 6, and symmetry has two first tapped holes 7 on the outer surface of said pivot 2; Have two second tapped holes 8 that are complementary with first tapped hole 7 on the said cover plate 4; Second tapped hole 8 on the said cover plate 4 links to each other cover plate 4 through second hex head bolt 9 with after first tapped hole 7 on the pivot 2 aligns with pivot 2.
Stable blower fan of the present invention; After long-time the use, though cover plate 4 is loosening along with impeller 1 rotation together can cause first hex head bolt 6 to take place, second hex head bolt 9 can guarantee being connected of cover plate 4 and pivot 2; Avoid impeller 1 to move axially; Increase the stability of fan operation, avoided taking place the come off situation of motor output shaft 3 of impeller 1, eliminated potential safety hazard.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (2)
1. stable blower fan; Comprise impeller, motor output shaft, cover plate, said impeller central authorities are provided with pivot, and said impeller is arranged on the motor output shaft; The outer surface of said motor output shaft is equal with the pivot outer surface; Said cover plate is near the pivot outer surface, and links to each other with motor output shaft through first hex head bolt, and it is characterized in that: symmetry has two first tapped holes on the outer surface of said pivot; Have two second tapped holes that are complementary with first tapped hole on the said cover plate; Second tapped hole on the said cover plate links to each other cover plate through fastening piece with after first tapped hole on the pivot aligns with pivot.
2. stable blower fan according to claim 1 is characterized in that: said fastening piece is second hex head bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210169206.8A CN102720679B (en) | 2012-05-29 | 2012-05-29 | Stably operating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210169206.8A CN102720679B (en) | 2012-05-29 | 2012-05-29 | Stably operating fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720679A true CN102720679A (en) | 2012-10-10 |
| CN102720679B CN102720679B (en) | 2015-05-13 |
Family
ID=46946517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210169206.8A Expired - Fee Related CN102720679B (en) | 2012-05-29 | 2012-05-29 | Stably operating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720679B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321969A (en) * | 2013-06-28 | 2013-09-25 | 开平市永强风机制造有限公司 | Blower |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000297782A (en) * | 1999-04-14 | 2000-10-24 | Osaka Vacuum Ltd | Main shaft connecting structure of rotor for high-speed rotating element |
| US6190134B1 (en) * | 1999-09-28 | 2001-02-20 | Molded Products Company | Fan blade stabilization apparatus |
| CN101392419A (en) * | 2008-10-15 | 2009-03-25 | 常熟市鼓风机有限公司 | Energy-saving fan of spinning frame |
| CN102022372A (en) * | 2009-09-22 | 2011-04-20 | 乐金电子(天津)电器有限公司 | Motor shaft fixing structure for volute fan |
| CN201858187U (en) * | 2010-10-19 | 2011-06-08 | 东莞市佛尔盛机电科技有限公司 | Looseness-proof structure for rotor shaft of gas ring vacuum pump |
| CN202659529U (en) * | 2012-05-29 | 2013-01-09 | 苏州市太湖风机制造有限公司 | Stably operating fan |
-
2012
- 2012-05-29 CN CN201210169206.8A patent/CN102720679B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000297782A (en) * | 1999-04-14 | 2000-10-24 | Osaka Vacuum Ltd | Main shaft connecting structure of rotor for high-speed rotating element |
| JP4404986B2 (en) * | 1999-04-14 | 2010-01-27 | 株式会社大阪真空機器製作所 | Spindle joint structure of high-speed rotor |
| US6190134B1 (en) * | 1999-09-28 | 2001-02-20 | Molded Products Company | Fan blade stabilization apparatus |
| CN101392419A (en) * | 2008-10-15 | 2009-03-25 | 常熟市鼓风机有限公司 | Energy-saving fan of spinning frame |
| CN102022372A (en) * | 2009-09-22 | 2011-04-20 | 乐金电子(天津)电器有限公司 | Motor shaft fixing structure for volute fan |
| CN201858187U (en) * | 2010-10-19 | 2011-06-08 | 东莞市佛尔盛机电科技有限公司 | Looseness-proof structure for rotor shaft of gas ring vacuum pump |
| CN202659529U (en) * | 2012-05-29 | 2013-01-09 | 苏州市太湖风机制造有限公司 | Stably operating fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321969A (en) * | 2013-06-28 | 2013-09-25 | 开平市永强风机制造有限公司 | Blower |
| CN103321969B (en) * | 2013-06-28 | 2016-04-06 | 开平市永强风机制造有限公司 | A kind of blower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102720679B (en) | 2015-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20160529 |