CN2932810Y - Motor waterproof structure - Google Patents
Motor waterproof structure Download PDFInfo
- Publication number
- CN2932810Y CN2932810Y CNU2006200446795U CN200620044679U CN2932810Y CN 2932810 Y CN2932810 Y CN 2932810Y CN U2006200446795 U CNU2006200446795 U CN U2006200446795U CN 200620044679 U CN200620044679 U CN 200620044679U CN 2932810 Y CN2932810 Y CN 2932810Y
- Authority
- CN
- China
- Prior art keywords
- bearing cover
- end cap
- outer bearing
- cover
- cap
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Motor Or Generator Frames (AREA)
Abstract
A water-proof structure of a generator, comprising a rotation shaft, an end cap, an inner bearing cover, an outer bearing cover, a shaft sleeve, a retainer ring and a protective casing, wherein the end cap is provided with a bearing, the rotation shaft passes through the inner bearing cover and the outer bearing cover, the inner bearing cover is fixedly connected with the end cap through an internal hexagonal screw bolt, the outer bearing cover is fixedly connected with the end cap through an hexagonal screw bolt, the rotation shaft is provided with the shaft sleeve through interference fit structure, the shaft sleeve is arranged between the outer bearing cover and the rotation shaft, the outer end surface of the shaft sleeve is fixedly provided with the retainer ring, the outer circumference of the outer bearing cover is provided with the protective casing having a cylindrical shape, the shaft sleeve and the retainer ring are arranged between the protective casing and the end cap, and the side wall of the protective casing is provided with a port for passing water. The end cap, the inner bearing cover, the outer bearing cover, the shaft sleeve, the retainer ring and the protective casing compose a labyrinth structure, the water which flows into the protective casing can be kicked off by the retainer ring rotating along the rotation shaft and discharged through the port for passing water arranged at the side wall of the protective casing, thereby effectively preventing the water from flowing into the inside of the generator through the interval between the rotation shaft and the outer bearing cover.
Description
Technical field:
The utility model relates to motor, relates in particular to the waterproof construction of the sealing device of motor, particularly a kind of motor.
Background technology:
In the prior art, the shaft end seal of motor generally is that the rubber seal sealing is adopted in the gap between rotating shaft and the outer bearing cover, and outer bearing cover, end cap and inside cap are connected by stay bolt.Motor in the course of the work, rubber seal loses sealing effectiveness because the ageing of rubber distortion takes place factors such as ponding, high temperature easily, the gap between machine shaft and the outer bearing cover is difficult to anti-sealing and enters motor internal.In addition, the stay bolt of connection outer bearing cover and inside cap also becomes the approach that water enters motor internal easily.Therefore, the waterproof effect of prior motor hermetically-sealed construction is undesirable, influences the service behaviour and the useful life of motor.
Summary of the invention:
The purpose of this utility model provides a kind of waterproof construction of motor, and the waterproof construction of described this motor will solve the unfavorable technical problem of hermetically-sealed construction waterproof effect of motor in the prior art.
The waterproof construction of this motor of the present utility model is by rotating shaft, end cap, inside cap, outer bearing cover, axle sleeve, back-up ring, protective cover constitutes, described bearing is arranged in the described end cap, described rotating shaft is arranged in the described bearing, described inside cap is arranged on the inner face of bearing, described outer bearing cover is arranged on the outer face of bearing, inside cap and outer bearing cover are passed in rotating shaft, it is characterized in that: described inside cap is fixedlyed connected by hexagon socket head cap screw with end cap, described outer bearing cover is fixedlyed connected by hex bolts with end cap, the bolt hole that connects outer bearing cover on the end cap misplaces mutually with the bolt hole that is connected inside cap, described axle sleeve is arranged in the rotating shaft by over-surplus fit structure, axle sleeve is between outer bearing cover and rotating shaft, described back-up ring is fixedly installed on the outer face of axle sleeve, described shielding cover is connected on the excircle of outer bearing cover, it is cylindric that protective cover is, all between protective cover and end cap, the sidewall of protective cover is provided with osculum for axle sleeve and back-up ring.
Further, be provided with counterbore in the outer face of described end cap, the drive end of described hexagon socket head cap screw is arranged in the counterbore.
Further, the axial cross section of described back-up ring is the U type, is provided with a protrusion step in the outer face of outer bearing cover, and the radius of back-up ring is greater than the radius of described protrusion step.
Further, described protective cover is connected by screw with outer bearing cover.
Further, described back-up ring is connected with the outer face of axle sleeve by bolt.
Operation principle of the present utility model is: the utility model utilizes end cap, inside cap, outer bearing cover, axle sleeve, back-up ring and protective cover to constitute a labyrinth structure.The water that enters protective cover throws away when rotating with rotating shaft by back-up ring, and discharges by the osculum of protective cover sidewall.The screwed hole that is connected with inside cap on the end cap and with screwed hole that outer bearing cover is connected between the angle that staggers, end cap and inside and outside bearing cap misplace fixing respectively, therefore be difficult to form penetrating passage, can further avoid water directly to enter motor internal by bolt hole, axle sleeve adopts interference to be connected with rotating shaft, also can play sealing function effectively.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model is provided with labyrinth structure on the structure of the outer bearing cover of motor, end cap part, can prevent that on the one hand sealing infiltrates motor from the connecting bolt of inside and outside bearing cap, by labyrinth structure and discharge structure acting in conjunction, prevented that effectively water from entering bearing from crack between rotating shaft and the outer bearing cover on the other hand.
Description of drawings:
Fig. 1 is the cross-sectional view of the waterproof construction of motor of the present utility model.
Embodiment:
As shown in Figure 1, the waterproof construction of motor of the present utility model, by rotating shaft 7, end cap 2, inside cap 1, outer bearing cover 4, axle sleeve 10, back-up ring 9, protective cover 5 constitutes, be provided with bearing 13 in the described end cap 2, described rotating shaft 7 is arranged in the described bearing 13, described inside cap 1 is arranged on the inner face of bearing 13, described outer bearing cover 4 is arranged on the outer face of bearing 13, inside cap 1 and outer bearing cover 4 are passed in rotating shaft 7, wherein, described inside cap 1 is fixedlyed connected by hexagon socket head cap screw 3 with end cap 2, described outer bearing cover 4 is fixedlyed connected by hex bolts 12 with end cap 2, be provided with an axle sleeve 10 by over-surplus fit structure in the described rotating shaft 7, described axle sleeve 10 is between outer bearing cover 4 and rotating shaft 7, be set with a back-up ring 9 on the outer face of axle sleeve 10, be socketed with a protective cover 5 on the excircle of outer bearing cover 4, described protective cover 5 is cylindric, all between protective cover 5 and end cap 2, the sidewall of protective cover 5 is provided with osculum 11 for axle sleeve 10 and back-up ring 9.
Further, be provided with counterbore in the outer face of described end cap 2, the drive end of described hexagon socket head cap screw 3 is arranged in the counterbore.
Further, the axial cross section of described back-up ring 9 is the U type, is provided with a protrusion step in the outer face of outer bearing cover 4, and the radius of back-up ring 9 is greater than the radius of described protrusion step.
Further, described protective cover 5 is connected by screw 6 with outer bearing cover 4.
Further, described back-up ring 9 is connected with the outer face of axle sleeve 10 by bolt 8.
Enter the water of protective cover inner chamber 21, throw away when rotating with rotating shaft 7, and discharge by the osculum 11 of protective cover 5 sidewalls by back-up ring 9.
Claims (5)
1. the waterproof construction of a motor, by rotating shaft, end cap, inside cap, outer bearing cover, axle sleeve, back-up ring, protective cover constitutes, described bearing is arranged in the described end cap, described rotating shaft is arranged in the described bearing, described inside cap is arranged on the inner face of bearing, described outer bearing cover is arranged on the outer face of bearing, inside cap and outer bearing cover are passed in rotating shaft, it is characterized in that: described inside cap is fixedlyed connected by hexagon socket head cap screw with end cap, described outer bearing cover is fixedlyed connected by hex bolts with end cap, the bolt hole that connects outer bearing cover on the end cap misplaces mutually with the bolt hole that is connected inside cap, described axle sleeve is arranged in the rotating shaft by over-surplus fit structure, axle sleeve is between outer bearing cover and rotating shaft, described back-up ring is fixedly installed on the outer face of axle sleeve, described shielding cover is connected on the excircle of outer bearing cover, it is cylindric that protective cover is, all between protective cover and end cap, the sidewall of protective cover is provided with osculum for axle sleeve and back-up ring.
2. the waterproof construction of motor as claimed in claim 1, it is characterized in that: be provided with counterbore in the outer face of described end cap, the drive end of described hexagon socket head cap screw is arranged in the counterbore.
3. the waterproof construction of motor as claimed in claim 1, it is characterized in that: the axial cross section of described back-up ring is the U type, is provided with a protrusion step in the outer face of outer bearing cover, and the radius of back-up ring is greater than the radius of described protrusion step.
4. the waterproof construction of motor as claimed in claim 1, it is characterized in that: described protective cover is connected by screw with outer bearing cover.
5. the waterproof construction of motor as claimed in claim 1, it is characterized in that: described back-up ring is connected with the outer face of axle sleeve by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200446795U CN2932810Y (en) | 2006-08-09 | 2006-08-09 | Motor waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200446795U CN2932810Y (en) | 2006-08-09 | 2006-08-09 | Motor waterproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2932810Y true CN2932810Y (en) | 2007-08-08 |
Family
ID=38349300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200446795U Expired - Lifetime CN2932810Y (en) | 2006-08-09 | 2006-08-09 | Motor waterproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2932810Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123374B (en) * | 2006-08-09 | 2010-05-12 | 上海南洋电机有限公司 | A waterproof sealing structure for motor |
| CN110829682A (en) * | 2019-11-15 | 2020-02-21 | 上海德驱驰电气有限公司 | Full-protection grinding head motor |
-
2006
- 2006-08-09 CN CNU2006200446795U patent/CN2932810Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123374B (en) * | 2006-08-09 | 2010-05-12 | 上海南洋电机有限公司 | A waterproof sealing structure for motor |
| CN110829682A (en) * | 2019-11-15 | 2020-02-21 | 上海德驱驰电气有限公司 | Full-protection grinding head motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20070808 Effective date of abandoning: 20060809 |