CN2764976Y - Magnetic transmission draught fan used for sealing equipment - Google Patents
Magnetic transmission draught fan used for sealing equipment Download PDFInfo
- Publication number
- CN2764976Y CN2764976Y CN 200420120784 CN200420120784U CN2764976Y CN 2764976 Y CN2764976 Y CN 2764976Y CN 200420120784 CN200420120784 CN 200420120784 CN 200420120784 U CN200420120784 U CN 200420120784U CN 2764976 Y CN2764976 Y CN 2764976Y
- Authority
- CN
- China
- Prior art keywords
- draught fan
- magnetic
- sleeve
- rubber ring
- motor
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a magnetic transmission draught fan used for sealing equipment, which solves the technical problem that the existing method for solving seal is that a sealed rubber ring is installed on a shaft of a motor to carry out moving seal. Thus, requirements of the material of the sealed rubber ring are high, especially when used for a period of time, the sealed rubber ring can be abraded, aged and deformed, and a working region of the draught fan leaks air from the sealed rubber ring. The utility model has the main points that magnetic outer sleeve rotors are driven by the motor; magnetic inner sleeve rotors are fixed by a drive end of an impeller actuating shaft; a separating sleeve is arranged between the inner sleeve rotors and the outer sleeve rotors, and the separating sleeve is fixed on a flange which is formed from the draught fan and a sealed container in a connection way. The utility model has the advantages that the working region of the draught fan is separated from the main shaft of the motor through the separating sleeve, since the separating sleeve does not rotate, so as to ensure that the separating sleeve is not abraded, and has the advantages of long sealing life and high reliability.
Description
Technical field
The utility model relates to a kind of blower fan, and particularly a kind of inside for hermetically sealed can provides the blower fan of air circulation.
Background technique
For the inside of hermetically sealed can provides the blower fan of air circulation, require blower fan itself to have certain sealing.The method that solves is on the axle of motor O-ring seal to be installed at present, carries out motive sealing with O-ring seal.This is not only very high to the material requirement of O-ring seal, and sealing effect is unreliable, particularly when using after a period of time, O-ring seal can wear and tear, wear out, and then distortion, the working area of blower fan (impeller) makes blower fan loss of seal effect from O-ring seal (rotating shaft) gas leakage.
Summary of the invention
The purpose of this utility model is to provide a kind of long service life, the magnetic drives blower fan of good sealing effect.
The purpose of this utility model is achieved in that it comprises motor and impeller, it is characterized in that: motor shaft drives the magnetic external rotor, on the drive end fixed magnetic internal rotor of impeller drive shaft, between internal rotor and external rotor, spacer is arranged, the working area (impeller) of blower fan is isolated with motor shaft, and spacer is fixed on blower fan and the hermetically sealed can flange connecting.When motor rotates, drive the rotation of magnetic external rotor, under its magnetic force, the device internal rotor is also along with rotation, and impeller is rotated.Because spacer does not contact with rotating shaft and do not rotate, spacer does not does not wear and tear, so can guarantee that sealing effect is good, sealing life is long.
The utility model is compared with the prior art scheme, and it is to isolate with motor shaft with the working area (impeller) of spacer with blower fan, because spacer does not rotate, so can guarantee that spacer does not does not wear and tear, the reliability of sealing improves greatly, and sealing life is long.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
It comprises motor 1 and impeller 6, motor shaft drives magnetic external rotor 2, the drive end fixed magnetic internal rotor 4 of impeller drive shaft 5 has spacer 3 between internal rotor and external rotor, the working area (impeller) and the motor shaft of blower fan are isolated, spacer is fixed on blower fan and the hermetically sealed can flange connecting 7, when motor rotates, drive the rotation of magnetic external rotor, under its magnetic force, the magnetic internal rotor is also along with rotation, and impeller is rotated.Because spacer does not rotate, so can guarantee that spacer does not does not wear and tear, sealing life is long.
Claims (1)
1. magnetic drives blower fan that is used on the water-tight equipment, it comprises motor and impeller, it is characterized in that: motor shaft drives magnetic external rotor, the drive end fixed magnetic internal rotor of impeller drive shaft, between internal rotor and external rotor spacer is arranged, spacer is fixed on blower fan and the hermetically sealed can flange connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120784 CN2764976Y (en) | 2004-12-30 | 2004-12-30 | Magnetic transmission draught fan used for sealing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120784 CN2764976Y (en) | 2004-12-30 | 2004-12-30 | Magnetic transmission draught fan used for sealing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2764976Y true CN2764976Y (en) | 2006-03-15 |
Family
ID=36167895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420120784 Expired - Fee Related CN2764976Y (en) | 2004-12-30 | 2004-12-30 | Magnetic transmission draught fan used for sealing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2764976Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110397A (en) * | 2013-04-16 | 2014-10-22 | 苏州工业园区中法环境技术有限公司 | Air extracting fan |
| CN104343723A (en) * | 2013-08-09 | 2015-02-11 | 深圳市鹏翔运达机械科技有限公司 | Internal-recycle vacuum oven magnetic transmission structure |
| CN105606990A (en) * | 2015-11-24 | 2016-05-25 | 北京新润泰思特测控技术有限公司 | Aging test box |
| CN106382240A (en) * | 2016-12-01 | 2017-02-08 | 无锡溥汇机械科技有限公司 | Magnetic coupling drive seal type draught fan |
| CN115382585A (en) * | 2022-08-30 | 2022-11-25 | 合肥通用机械研究院有限公司 | Low-temperature vacuum composite experimental device |
-
2004
- 2004-12-30 CN CN 200420120784 patent/CN2764976Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110397A (en) * | 2013-04-16 | 2014-10-22 | 苏州工业园区中法环境技术有限公司 | Air extracting fan |
| CN104343723A (en) * | 2013-08-09 | 2015-02-11 | 深圳市鹏翔运达机械科技有限公司 | Internal-recycle vacuum oven magnetic transmission structure |
| CN105606990A (en) * | 2015-11-24 | 2016-05-25 | 北京新润泰思特测控技术有限公司 | Aging test box |
| CN106382240A (en) * | 2016-12-01 | 2017-02-08 | 无锡溥汇机械科技有限公司 | Magnetic coupling drive seal type draught fan |
| CN115382585A (en) * | 2022-08-30 | 2022-11-25 | 合肥通用机械研究院有限公司 | Low-temperature vacuum composite experimental device |
| CN115382585B (en) * | 2022-08-30 | 2023-10-24 | 合肥通用机械研究院有限公司 | Low-temperature vacuum composite experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |