CN203339851U - Motor shaft sealing structure - Google Patents
Motor shaft sealing structure Download PDFInfo
- Publication number
- CN203339851U CN203339851U CN2013204286278U CN201320428627U CN203339851U CN 203339851 U CN203339851 U CN 203339851U CN 2013204286278 U CN2013204286278 U CN 2013204286278U CN 201320428627 U CN201320428627 U CN 201320428627U CN 203339851 U CN203339851 U CN 203339851U
- Authority
- CN
- China
- Prior art keywords
- motor shaft
- motor
- oil
- oil baffle
- sealing structure
- 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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- Motor Or Generator Frames (AREA)
Abstract
The utility model provides a motor shaft sealing structure. An oil retaining ring is fixed by a screw at the outer side of the end cover at one side of the motor which is connected with a speed reducer. The oil retaining ring is sleeved on a motor shaft. A gap of 0.03 mm to 0.05 mm is formed between the oil retaining ring and a motor shaft. When the motor is working, leakage oil flows through the gap to form oil film sealing, and the inward penetration of oil is prevented.
Description
Technical field
The utility model relates to electric machine structure, particularly a kind of hermetically-sealed construction of motor shaft.
Background technology
As shown in Figure 1, existing electric motor end cap there is no sealing device, and when motor is connected with reductor, the lubricating oil in reductor can be to the motor internal oil impregnate, and causes motor from the end caps oil impregnate, causes that electrical machine insulation descends, and serious meeting causes burn-down of electric motor.
Summary of the invention
For this situation, the purpose of this utility model is: a kind of motor shaft seal structure is provided, mainly solves the problem that motor causes electrical machine insulation to reduce or burn without sealing.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of motor shaft seal structure is characterized in that: be that the side end cap outside be connected with reductor at motor is screwed an oil baffle, when described oil baffle is enclosed within on described motor shaft, form the gap of 0.03-0.05mm between oil baffle and motor shaft.
Wherein: described oil baffle is made by polytetrafluoroethylene.
Compared with prior art, adopt the advantage the utlity model has of technique scheme to be: during machine operation, leakage of oil this gap location of flowing through can form oil film seal, prevents inside oil impregnate.
The accompanying drawing explanation
Fig. 1 is the sectional structure chart of existing electric motor end cap;
Fig. 2 is the sectional structure chart that the utility model provides electric motor end cap in motor shaft seal structure.
Description of reference numerals: 1-end cap; The 2-oil baffle.
Embodiment
As shown in Figure 2, the utility model provides a kind of motor shaft seal structure, that the side end cap outside be connected with reductor at motor is screwed an oil baffle, described oil baffle is made by polytetrafluoroethylene (being commonly called as King), and its internal diameter is than the large 0.03-0.05mm of the external diameter of the motor shaft of motor.
So, when described oil baffle is enclosed within on described motor shaft, the ，Gai gap, gap that can form 0.03-0.05mm between oil baffle and motor shaft can form oil film seal, prevents leakage of oil.
Wherein, described polytetrafluoroethylene has the effect of wear-resisting and self-lubricating, can guarantee useful life.
Above explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, in the situation that do not break away from the spirit and scope that claim limits; can make many modifications, variation or equivalence, but within all falling into protection range of the present utility model.
Claims (2)
1. a motor shaft seal structure, is characterized in that: be that the side end cap outside be connected with reductor at motor is screwed an oil baffle, when described oil baffle is enclosed within on described motor shaft, form the gap of 0.03-0.05mm between oil baffle and motor shaft.
2. motor shaft seal structure according to claim 1, it is characterized in that: described oil baffle is made by polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204286278U CN203339851U (en) | 2013-07-15 | 2013-07-15 | Motor shaft sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204286278U CN203339851U (en) | 2013-07-15 | 2013-07-15 | Motor shaft sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203339851U true CN203339851U (en) | 2013-12-11 |
Family
ID=49708506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204286278U Expired - Lifetime CN203339851U (en) | 2013-07-15 | 2013-07-15 | Motor shaft sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203339851U (en) |
-
2013
- 2013-07-15 CN CN2013204286278U patent/CN203339851U/en not_active Expired - Lifetime
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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: 20131211 |
|
| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: Expiration and Termination of 39 Volume 3101 Patent on August 1, 2023 Number: 31-01 Volume: 39 |
|
| CU01 | Correction of utility model |