CN202708082U - Oil leakage prevention positive pressure sealing structure for sliding bearing - Google Patents
Oil leakage prevention positive pressure sealing structure for sliding bearing Download PDFInfo
- Publication number
- CN202708082U CN202708082U CN 201220375837 CN201220375837U CN202708082U CN 202708082 U CN202708082 U CN 202708082U CN 201220375837 CN201220375837 CN 201220375837 CN 201220375837 U CN201220375837 U CN 201220375837U CN 202708082 U CN202708082 U CN 202708082U
- Authority
- CN
- China
- Prior art keywords
- actor
- rendering
- operatic tune
- sliding bearing
- travel cavity
- 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
Links
Images
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model discloses an oil leakage prevention positive pressure sealing structure for a sliding bearing. The sliding bearing is fixed on an end cover to be matched with a shaft; a first travel cavity and a second travel cavity are sequentially formed between the sliding bearing and the shaft along the direction inside a motor, which is towards the outside the motor; an independent third travel cavity is formed inside the motor; positive pressure gas is filled in the first travel cavity; and the gas filled into the first travel cavity flows to the second travel cavity and the third travel cavity under the action of the gas pressure difference. According to the utility model, by filling the positive pressure gas into the first travel cavity close to the inside of the motor and ensuring the gas pressure in the first travel cavity higher than those in the environment around the motor and in the adjacent travel cavity, the gas filled into the first travel cavity flows to the second travel cavity and the third travel cavity under the action of the gas pressure difference, so that oil mist in the second travel cavity is stopped from flowing to the first travel cavity and the oil mist in the second travel cavity cannot enter the third travel cavity through the first travel cavity, and thus, the problem of oil leakage of the sliding bearing is solved.
Description
Technical field
The utility model relates to a kind of sliding bearing oil-leakage-prevention positive seal structure.
Background technique
The sliding bearing motor of traditional design, when motor moves, because the running of the rotating machinerys such as motor internal fan, at the inboard negative pressuren zone (air pressure that namely should the zone is lower than the air pressure of outside motor) that forms of sliding bearing, the mist of oil of bearing inside is under the effect of negative pressure, the gap of crossing between seal ring, internal bearing cover and the axle enters motor internal, forms oil droplet after the condensation, produces the sliding bearing oil leakage phenomenon.
This has also just caused the following shortcoming of existing sliding bearing:
1. waste resource;
2. befouling environment.
Summary of the invention
The utility model purpose is for the existing deficiency of prior art, provides a kind of sliding bearing oil-leakage-prevention positive laminated structure, and it can effectively solve the Leakage of sliding bearing, has also reached the purpose that economizes on resources, reduces environmental pollution simultaneously.
In order to solve these problems of the prior art, the technological scheme that the utility model provides is:
The positive laminated structure of a kind of sliding bearing oil-leakage-prevention, sliding bearing is fixed on the end cap and matches with axle, direction along motor internal sensing outside motor between described sliding bearing and the axle forms first an actor's rendering of an operatic tune successively, second an actor's rendering of an operatic tune, motor internal is provided with independently the third line chamber, totally three independent an actor's rendering of an operatic tune, pass into barotropic gas in first an actor's rendering of an operatic tune, the gas that passes in first an actor's rendering of an operatic tune flows to second an actor's rendering of an operatic tune and the third line chamber under the effect of draught head, thereby the mist of oil of having blocked in second an actor's rendering of an operatic tune flows to first an actor's rendering of an operatic tune, and the mist of oil in second an actor's rendering of an operatic tune just can not enter the third line chamber by first an actor's rendering of an operatic tune.
As optimization, the air pressure of the barotropic gas in described first an actor's rendering of an operatic tune is greater than the air pressure in the motor surrounding environment.
Than solution of the prior art, the utility model advantage is:
The utility model is by at two an actor's rendering of an operatic tune of sliding bearing and between centers formation and at independent an actor's rendering of an operatic tune of motor internal, and passing into barotropic gas near in first an actor's rendering of an operatic tune of motor internal, and pass into air pressure in first an actor's rendering of an operatic tune greater than the air pressure in the motor surrounding environment, the gas that passes into like this in first an actor's rendering of an operatic tune flows to second an actor's rendering of an operatic tune and the third line chamber under the effect of draught head, thereby the mist of oil of having blocked in second an actor's rendering of an operatic tune flows to first an actor's rendering of an operatic tune, mist of oil in second an actor's rendering of an operatic tune just can be by first an actor's rendering of an operatic tune but is entered the third line chamber, and then solves the sliding bearing Leakage.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is overall structure schematic representation of the present utility model;
Wherein: 1, sliding bearing; 2, axle; 3, first an actor's rendering of an operatic tune; 4, second an actor's rendering of an operatic tune; 5, the third line chamber.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiments are not limited to limit the scope of the invention for explanation the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment:
Present embodiment has been described a kind of sliding bearing oil-leakage-prevention positive seal structure, its structure as shown in Figure 1, sliding bearing 1 is fixed on the end cap and matches with axle 2, direction along motor internal sensing outside motor between described sliding bearing 1 and the axle 2 forms first an actor's rendering of an operatic tune 3 successively, second an actor's rendering of an operatic tune 4, motor internal is provided with independently the third line chamber 5, totally three independent an actor's rendering of an operatic tune, pass into barotropic gas in first an actor's rendering of an operatic tune 3, the gas that passes in first an actor's rendering of an operatic tune 3 flows to second an actor's rendering of an operatic tune 4 and the third line chamber 5 under the effect of draught head, thereby blocked the mist of oil that the mist of oil in second an actor's rendering of an operatic tune 4 flows in first an actor's rendering of an operatic tune, 3, the second an actor's rendering of an operatic tune 4 and just can not enter the third line chamber 5 by first an actor's rendering of an operatic tune 3.
The air pressure of the barotropic gas in described first an actor's rendering of an operatic tune 3 is greater than the air pressure in the motor surrounding environment.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (2)
1. sliding bearing oil-leakage-prevention positive seal structure, sliding bearing is fixed on the end cap and matches with axle, it is characterized in that, direction along motor internal sensing outside motor between described sliding bearing and the axle forms first an actor's rendering of an operatic tune successively, second an actor's rendering of an operatic tune, motor internal is provided with independently the third line chamber, totally three independent an actor's rendering of an operatic tune, pass into barotropic gas in first an actor's rendering of an operatic tune, the gas that passes in first an actor's rendering of an operatic tune flows to second an actor's rendering of an operatic tune and the third line chamber under the effect of draught head, thereby the mist of oil of having blocked in second an actor's rendering of an operatic tune flows to first an actor's rendering of an operatic tune, and the mist of oil in second an actor's rendering of an operatic tune just can not enter the third line chamber by first an actor's rendering of an operatic tune.
2. a kind of sliding bearing oil-leakage-prevention positive seal structure according to claim 1 is characterized in that, the air pressure of the barotropic gas in described first an actor's rendering of an operatic tune is greater than the air pressure in the motor surrounding environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375837 CN202708082U (en) | 2012-07-31 | 2012-07-31 | Oil leakage prevention positive pressure sealing structure for sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375837 CN202708082U (en) | 2012-07-31 | 2012-07-31 | Oil leakage prevention positive pressure sealing structure for sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708082U true CN202708082U (en) | 2013-01-30 |
Family
ID=47588388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220375837 Expired - Lifetime CN202708082U (en) | 2012-07-31 | 2012-07-31 | Oil leakage prevention positive pressure sealing structure for sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754077A (en) * | 2022-04-24 | 2022-07-15 | 华能澜沧江水电股份有限公司 | Oil mist prevention device for thrust bearing of hydroelectric generating set and using method thereof |
-
2012
- 2012-07-31 CN CN 201220375837 patent/CN202708082U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754077A (en) * | 2022-04-24 | 2022-07-15 | 华能澜沧江水电股份有限公司 | Oil mist prevention device for thrust bearing of hydroelectric generating set and using method thereof |
| CN114754077B (en) * | 2022-04-24 | 2023-11-17 | 华能澜沧江水电股份有限公司 | Oil mist preventing device for thrust bearing of hydroelectric generating set and application method of oil mist preventing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201448915U (en) | Oil screen of soot absorber | |
| CN202708082U (en) | Oil leakage prevention positive pressure sealing structure for sliding bearing | |
| CN202449576U (en) | Labyrinth seal device for belt conveyor turunabout drum | |
| CN205559585U (en) | Modified automobile wheel hub bearing assembly | |
| CN202889046U (en) | Waterproof structure of external rotor electric machine | |
| CN104300724B (en) | A kind of structure for preventing traction electric machine oil leak | |
| CN204004005U (en) | A kind of tapered roller bearing | |
| CN103738883B (en) | A kind of scissors type lifting platform car guide roll mechanism | |
| CN202708074U (en) | Oil leakage-proof spiral seal structure for sliding bearing | |
| CN201027977Y (en) | Non-contact mechanical sealing device | |
| CN203331726U (en) | Oil storage car axle structure | |
| CN203009795U (en) | Reducer | |
| CN203585109U (en) | Novel motor bearing sealing structure | |
| CN203362860U (en) | Lubricator end cover of molten iron jar wheel bearing | |
| CN203516765U (en) | Jamming-preventing butterfly valve special for gas | |
| CN208381319U (en) | A kind of vehicle axel hub oil seal | |
| CN202673384U (en) | Novel engine stigma grease seal | |
| CN202520953U (en) | Wheel cylinder double-lip packing cup of hydraulic brake | |
| CN205895934U (en) | Horizontal spiral centrifuge with air -oil lubrication device | |
| CN104061244A (en) | Novel railway hub bearing labyrinth oil seal | |
| CN204458850U (en) | A kind of automobile belt wheel bearing seal ring | |
| CN205489923U (en) | Found bearing assembly structure of horizontal dual -purpose motor | |
| CN205298279U (en) | Seal location bearing for rolling mill at a high speed | |
| CN204357763U (en) | A kind of shaft seal structure | |
| CN103322204B (en) | A kind of associated sealing arrangement for bearings of pickling line scale breading withdrawal straightening machine Guide roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |