CN202228688U - Sealing structure of end cover type sliding bearing - Google Patents
Sealing structure of end cover type sliding bearing Download PDFInfo
- Publication number
- CN202228688U CN202228688U CN201120365745XU CN201120365745U CN202228688U CN 202228688 U CN202228688 U CN 202228688U CN 201120365745X U CN201120365745X U CN 201120365745XU CN 201120365745 U CN201120365745 U CN 201120365745U CN 202228688 U CN202228688 U CN 202228688U
- Authority
- CN
- China
- Prior art keywords
- bearing
- sliding bearing
- end cover
- cover type
- type sliding
- 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 relates to a sealing structure of an end cover type sliding bearing and belongs to the technical field of sliding bearings. A toothed sealing ring is arranged at an output shaft end of the sliding bearing, and consists of an upper half part and a lower half part; a stepped boss is arranged on an external circle and fixed with a bearing shell; a plurality of sharp teeth are arranged in an internal hole; small holes are formed in inter-tooth grooves at the bottom of the lower half part and communicated with end face holes to make oil reflow to a bearing box; one end face, opposite to the center of the bearing, of each sharp tooth is a vertical surface; and the toothed sealing ring can be used for manufacturing a high molecular insulating material. The utility model has the advantage that: by changing the sealing structure of the end cover type sliding bearing, the problem of leakage of the oil and gas of the bearing is solved.
Description
Technical field
The utility model relates to a kind of sliding bearing, relates in particular to a kind of sealing configuration of end cover type sliding bearing.
Background technique
At present, the end cover type sliding bearing of DQ series is because of its advantage such as easy to use, in the field of business as standard piece buying use.Yet the sliding bearing of this structure is when certain rotating speed, and the negative pressure that produces in the motor can suck unit with oil gas in the bearing, cause seal failure.Therefore need improve its floating type labyrinth seal structure utmost point that uses at present.
Summary of the invention
The utility model is the sealing configuration that a kind of end cover type sliding bearing is provided in order to address the above problem.
The utility model is that the technological scheme that addresses the above problem employing is: the axle head that goes out at sliding bearing is established the dentation seal ring; Said dentation seal ring is made up of two halves up and down; Cylindrical is established the step boss, and with bearing shell matching and fixing, endoporus is established some pointed tooths; And establish aperture and communicate with end-face hole at the between cog groove of second bottom, make fluid flow back to bearing housing; Said pointed tooth is a vertical surface with respect to an end face of bearing centre.
As preferably, described dentation seal ring can be made with insulating polymeric material.
The beneficial effect of the utility model is: through changing its sealing configuration, solved the problem of bearing oil gas leakage.
Description of drawings
Fig. 1 is the structural representation of model utility.
Fig. 2 is the partial enlarged drawing of the structural representation of model utility.
Among the figure: 1, seal ring, 2, rotating shaft, 3, bearing housing, 4, annular cavity, 5, the sealing tooth, 6, spill port.
Embodiment
Below in conjunction with accompanying drawing, the technological scheme of the utility model is further described:
Like Fig. 1, shown in Figure 2, seal ring 1 and bearing housing 3 matching and fixing, sealing tooth 5 has formed a series of throttle clearance and annular cavity with rotating shaft 2, thereby produces throttle effect and seal.When bearing in differential pressure effect following time; Oil gas is through the gap entering annular cavity 4 of rotating shaft 2 with sealing tooth 5; Most kinetic energy are converted into heat energy; Sub-fraction gets into next chamber, and remaining fluid is in spill port 6 flows back to bearing housing 3, through reaching sealing fully behind some chambers as shown in the figure.
Claims (4)
1. the sealing configuration of an end cover type sliding bearing, it is characterized in that: the axle head that goes out at sliding bearing is established the dentation seal ring.
2. a kind of according to claim 1 sealing configuration of end cover type sliding bearing; It is characterized in that: said dentation seal ring is made up of two halves up and down, and cylindrical is established the step boss, with bearing shell matching and fixing; Endoporus is established some pointed tooths, and establishes aperture and communicate with end-face hole at the between cog groove of second bottom.
3. a kind of according to claim 1 sealing configuration of end cover type sliding bearing, it is characterized in that: said pointed tooth is a vertical surface with respect to an end face of bearing centre.
4. a kind of according to claim 1 sealing configuration of end cover type sliding bearing, it is characterized in that: described dentation seal ring can be made with insulating polymeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120365745XU CN202228688U (en) | 2011-09-18 | 2011-09-18 | Sealing structure of end cover type sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120365745XU CN202228688U (en) | 2011-09-18 | 2011-09-18 | Sealing structure of end cover type sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228688U true CN202228688U (en) | 2012-05-23 |
Family
ID=46079274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120365745XU Expired - Fee Related CN202228688U (en) | 2011-09-18 | 2011-09-18 | Sealing structure of end cover type sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370887A (en) * | 2015-11-04 | 2016-03-02 | 西北工业大学 | Static and dynamic composite sealing structure and method for rotary machine rotor |
| CN105422493A (en) * | 2015-11-25 | 2016-03-23 | 沈阳透平机械股份有限公司 | Test run sealing device for large centrifugal compressor |
-
2011
- 2011-09-18 CN CN201120365745XU patent/CN202228688U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370887A (en) * | 2015-11-04 | 2016-03-02 | 西北工业大学 | Static and dynamic composite sealing structure and method for rotary machine rotor |
| CN105370887B (en) * | 2015-11-04 | 2017-07-14 | 西北工业大学 | A kind of quiet dynamic compound sealing structure and method for rotary machine rotor |
| CN105422493A (en) * | 2015-11-25 | 2016-03-23 | 沈阳透平机械股份有限公司 | Test run sealing device for large centrifugal compressor |
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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: 20120523 Termination date: 20120918 |