CN201869026U - Device for fixing outer fan of electrical machine - Google Patents
Device for fixing outer fan of electrical machine Download PDFInfo
- Publication number
- CN201869026U CN201869026U CN2010206367350U CN201020636735U CN201869026U CN 201869026 U CN201869026 U CN 201869026U CN 2010206367350 U CN2010206367350 U CN 2010206367350U CN 201020636735 U CN201020636735 U CN 201020636735U CN 201869026 U CN201869026 U CN 201869026U
- Authority
- CN
- China
- Prior art keywords
- fastening bolt
- external fan
- outer fan
- spindle
- rotating shaft
- 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 - Lifetime
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Abstract
A device for fixing an outer fan of an electrical machine comprises a steel cover, a check washer and a fastening bolt. The outer fan is installed on a spindle and is in small clearance fit with the spindle; a fixing screw hole is arranged in the spindle; the steel cover is pressed on the outer fan and the side end surface of the spindle, and is provided with a through hole; the fastening bolt is sheathed in the through hole and is fixed in the fixing screw hole of the spindle; the outer fan is compressed in axial direction by the steel cover and the fastening bolt, is fastened and prevented from being loosened by a stop washer, and does not need to be heated when being mounted and dismounted; and the fastening bolt is fastened by the stop washer. In the device for fixing the outer fan of the electrical machine, the outer fan can be in small clearance fit with the spindle so as to improve the mounting and dismounting efficiency, can be mounted and dismounted by an ordinary wrench so as to avoid adopting a special tool, and can be fastened more reliably by being compressed in the axial direction by the fastening bolt.
Description
Technical field
The utility model relates to a kind of fixture of motor component, specifically be meant a kind of motor external fan fixture, this device is the positioning motor external fan effectively, prevents that fan is loosening, economical and practical, be particularly useful for the supporting use of the external fan in the rotating shaft of large and middle size motor.
Background technology
Large and middle size motor can produce a large amount of heat, and is overheated in order to prevent the motor operation, must dispel the heat to motor when motor rotation, at present,, all adopts external fan to combine with internal fan and dispels the heat usually in order to strengthen heat-sinking capability for large and middle size motor.The external fan of large and middle size motor that can be present fixedly be to adopt circlip for shaft axially positioning, dismounting needs special device.Simultaneously, because circlip for shaft can not compress fan, will use interference fit between fan and the rotating shaft, installation and removal all need heating, cause the working service difficulty of motor external fan.Therefore require further improvement.
Summary of the invention
The purpose of this utility model in order to overcome the deficiency of original large and middle size motor with the external fan fixture, proposes a kind of difficulty that can reduce the fan dismounting exactly, increases the motor external fan fixture of its reliability of fixation.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of motor external fan fixture, form by steel lid, stop washer and fastening bolt three parts.Wherein external fan is installed in the rotating shaft, and external fan and rotating shaft are to adopt little matched in clearance, are provided with fixing threaded hole in rotating shaft; Be pressed with steel lid in the side end face of external fan and rotating shaft; The steel lid has a through hole, is with fastening bolt in the through hole, and fastening bolt is fixed in the fixing threaded hole of rotating shaft, and external fan adopts stop washer stop locking by steel lid and fastening bolt axial compression, and dismounting need not heated; Fastening bolt is fastening by stop washer.
The beneficial effects of the utility model are, can be under the condition of not using specific purpose tool, the dismounting external fan, can be used for external fan and be installed in fastening with external fan of large and middle size motor in the rotating shaft, with respect to the circlip for shaft structure, reduce the dismounting difficulty significantly, increased fastening reliability.
Description of drawings
Fig. 1 is the utility model schematic representation of apparatus;
Among the figure: 1. external fan, 2. rotating shaft, 3. steel lid, 4. stop washer, 5. fastening bolt.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Shown in Figure 1 is a kind of motor external fan fixture, is made up of steel lid 3, stop washer 4 and fastening bolt 5 three parts.Wherein external fan 1 is installed in the rotating shaft 2, and external fan 1 and rotating shaft 2 are to adopt little matched in clearance, are provided with fixing threaded hole in rotating shaft 2; Be pressed with steel lid 3 in the side end face of external fan 1 and rotating shaft 2; Steel lid 3 has a through hole, be with fastening bolt 5 in the through hole, fastening bolt 5 is fixed in the fixing threaded hole of rotating shaft 2, and external fan 1 is by steel lid 3 and fastening bolt 5 axial compression, it is locking to be provided with stop washer 4 stop between steel lid and fastening bolt, and dismounting need not heated; Fastening bolt 5 is fastening by stop washer 4.
The steel lid 3 that is made into steel plate in external fan 1 outside is pushed down, and utilizes the technology screw of rotating shaft 2 end faces then, with fastening bolt 5 steel lid 3 is compressed.Simultaneously, external fan 1 is also compacted, by stop washer 4 fastening bolt 5 is locked at last.
Motor of the present utility model is with in the external fan fixture, and external fan 1 can adopt little matched in clearance with rotating shaft 2, has improved dismounting efficient; Use the common wrench just can dismounting, avoided the use special tool(s); Make fastening more reliable by fastening bolt 5 axial compressing.
Claims (2)
1. a motor external fan fixture is characterized in that: be made up of steel lid, stop washer and fastening bolt three parts; Wherein external fan is installed in the rotating shaft, and external fan and rotating shaft are to adopt little matched in clearance, are provided with fixing threaded hole in rotating shaft; Be pressed with steel lid in the side end face of external fan and rotating shaft; The steel lid has a through hole, is with fastening bolt in the through hole, and fastening bolt is fixed in the fixing threaded hole of rotating shaft, and external fan is by steel lid and fastening bolt axial compression.
2. a kind of motor external fan fixture as claimed in claim 1 is characterized in that: be provided with stop washer between steel lid and fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206367350U CN201869026U (en) | 2010-12-02 | 2010-12-02 | Device for fixing outer fan of electrical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206367350U CN201869026U (en) | 2010-12-02 | 2010-12-02 | Device for fixing outer fan of electrical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869026U true CN201869026U (en) | 2011-06-15 |
Family
ID=44140169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206367350U Expired - Lifetime CN201869026U (en) | 2010-12-02 | 2010-12-02 | Device for fixing outer fan of electrical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201869026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024489A (en) * | 2015-08-11 | 2015-11-04 | 中达电机股份有限公司 | Cooling fan of explosion-proof variable frequency motor |
-
2010
- 2010-12-02 CN CN2010206367350U patent/CN201869026U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024489A (en) * | 2015-08-11 | 2015-11-04 | 中达电机股份有限公司 | Cooling fan of explosion-proof variable frequency motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |