CN201774355U - Combined type sealing structure of motor bearing - Google Patents
Combined type sealing structure of motor bearing Download PDFInfo
- Publication number
- CN201774355U CN201774355U CN2010205222405U CN201020522240U CN201774355U CN 201774355 U CN201774355 U CN 201774355U CN 2010205222405 U CN2010205222405 U CN 2010205222405U CN 201020522240 U CN201020522240 U CN 201020522240U CN 201774355 U CN201774355 U CN 201774355U
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- CN
- China
- Prior art keywords
- bearing
- motor
- annular groove
- axial
- oil
- 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 combined type sealing structure of motor bearing, comprising a radial seal and a labyrinth-shaped seal, wherein the radial seal is composed of an oil sealing cover which is in clearance fit with a motor shaft and a felt retainer which is embedded within the radial concave annular groove for the inner hole of the oil sealing cover; the labyrinth-shaped seal is composed of a bearing cover and an oil retainer which is fixedly connected to the motor shaft, the oil retainer is equipped with an axial concave annular groove of which the central axis is the central axis of the motor and the left end surface of the bearing cover is equipped with an axial concave annular groove which is in clearance fit with the axial concave annular groove on the oil retainer. The combined type sealing structure of motor bearing provided by the utility model has the advantages that the sealing property is greatly improved by rotating in the form of two sealing structures, the rolling bearing is rotated under the condition of sufficient lubrication, the lubrication of the bearing is ensured and the service life of the motor is long.
Description
Technical field
The utility model relates to a kind of bearing seal structure, particularly a kind of bearing seal structure of motor output shaft end.
Background technology
The bearing seal structure of motor output shaft end is the important component that the protection bearing moves under lubricating condition.The bearing seal of motor is a kind of journal bearing hermetically-sealed construction on the market, and this bearing seal structure is sealed and matched with setting-in felt circle and motor reel in the static oil sealing cap endoporus middle concave annular groove and forms.The journal bearing hermetically-sealed construction of prior art is simple, it is excessive and stop that extraneous dust enters the effect of bearing to play the restriction lubricant grease effectively, but, the sealing property of journal bearing hermetically-sealed construction depends on felt circle and motor reel mated condition, its sealing property just descends in case the felt circle weares and teares, and supplies the grease of bearing lubrication easily to leak out from the gap after being heated.The loss of lubricant grease will worsen the service conditions of bearing, the wearing and tearing of aggravation bearing, the useful life of reducing motor.
The utility model content
The utility model provides a kind of simple in structure, easy to manufacture at the deficiencies in the prior art, can significantly improve the bearing of motor combined seal structure of sealing effectiveness.
The utility model is achieved through the following technical solutions technical goal.
The bearing of motor combined seal structure, it is made up of radial seal and labyrinth sealing; Described radial seal is positioned at the rolling bearing right side, is made of oil sealing cap and oil sealing cap internal orifice dimension felt circle of setting-in in the spill annular groove of motor reel matched in clearance; Its improvements are: described labyrinth sealing is positioned at the rolling bearing left side, constitute by bearing cap and the chip washer that is fixedly connected on the motor reel, it is the axial spill annular groove of central axis with the motor central axis that chip washer is provided with 2～3, the bearing cap left side be provided with chip washer on the axial axial spill annular groove of spill annular groove gap fit.
In the said structure, the axial fit length of described chip washer and bearing cap is 4～12mm.
The utility model compared with prior art has following good effect:
1. radial seal and labyrinth sealing combining structure are simple, easy to manufacture;
2. combined seal structure significantly improves sealing effectiveness, and bearing lubrication is secure, the motor long service life.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments below.
Bearing of motor combined seal structure shown in the drawings, it is made up of radial seal and labyrinth sealing; Described radial seal is positioned at rolling bearing 4 right sides, is made of oil sealing cap 5 and oil sealing cap 5 internal orifice dimensions felt circle 6 of setting-in in the spill annular groove of motor reel 3 matched in clearance; Described labyrinth sealing is positioned at rolling bearing 4 left sides, constitute by bearing cap 1 and the chip washer 2 that is fixedly connected on the motor reel 3, it is the axial spill annular groove of central axis with the motor central axis that chip washer 2 is provided with 2～3, present embodiment is the 5KW motor, chip washer 2 is provided with 2 axial spill annular grooves, bearing cap 1 left side be provided with chip washer 2 on the axial axial spill annular groove of spill annular groove gap fit.Described chip washer 2 is 4～12mm with bearing cap 1 axial fit length, and present embodiment fit length is 7mm.
The utility model two kinds of dissimilar bearing seal structures when operation play different sealing functions.Lubricant grease forms S shape oil film, all the other lubricious grease axial flow of natural shutoff in chip washer 2 and bearing cap 1 axial fit gap annular groove.The felt circle 6 of setting-in cooperates the formation radial seal structure still to bring into play sealing function in the oil sealing cap 5 endoporus spill annular grooves with motor reel 3.Because the utility model rotates under two kinds of hermetically-sealed constructions, sealing property improves greatly, keeps rolling bearing 4 to rotate under the sufficient lubrication condition, guarantees that motor can not take place because of losing the damage accident that oil causes.
Claims (2)
1. bearing of motor combined seal structure, it is made up of radial seal and labyrinth sealing; Described radial seal is positioned at rolling bearing (4) right side, is made of the oil sealing cap (5) of motor reel (3) matched in clearance and the felt circle (6) of oil sealing cap (5) internal orifice dimension setting-in in the spill annular groove; It is characterized in that: described labyrinth sealing is positioned at rolling bearing (4) left side, constitute by bearing cap (1) and the chip washer (2) that is fixedly connected on the motor reel (3), it is the axial spill annular groove of central axis with the motor central axis that chip washer (2) is provided with 2～3, and bearing cap (1) left side is provided with the axial spill annular groove of going up axial spill annular groove gap fit with chip washer (2).
2. according to claims 1 described bearing of motor combined seal structure, it is characterized in that: described chip washer (2) is 4～12mm with the axial fit length of bearing cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205222405U CN201774355U (en) | 2010-09-09 | 2010-09-09 | Combined type sealing structure of motor bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205222405U CN201774355U (en) | 2010-09-09 | 2010-09-09 | Combined type sealing structure of motor bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774355U true CN201774355U (en) | 2011-03-23 |
Family
ID=43754192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205222405U Expired - Fee Related CN201774355U (en) | 2010-09-09 | 2010-09-09 | Combined type sealing structure of motor bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT512325A1 (en) * | 2011-12-30 | 2013-07-15 | Traktionssysteme Austria Gmbh | ELECTRICAL MACHINE |
-
2010
- 2010-09-09 CN CN2010205222405U patent/CN201774355U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT512325A1 (en) * | 2011-12-30 | 2013-07-15 | Traktionssysteme Austria Gmbh | ELECTRICAL MACHINE |
| AT512325B1 (en) * | 2011-12-30 | 2014-03-15 | Traktionssysteme Austria Gmbh | ELECTRICAL MACHINE |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20130909 |