CN201502712U - Air-sealing device of bearing - Google Patents
Air-sealing device of bearing Download PDFInfo
- Publication number
- CN201502712U CN201502712U CN2009201902515U CN200920190251U CN201502712U CN 201502712 U CN201502712 U CN 201502712U CN 2009201902515 U CN2009201902515 U CN 2009201902515U CN 200920190251 U CN200920190251 U CN 200920190251U CN 201502712 U CN201502712 U CN 201502712U
- Authority
- CN
- China
- Prior art keywords
- bearing
- pipe
- air
- ventilation
- rotating shaft
- 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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- Sealing Of Bearings (AREA)
Abstract
The utility model relates to an air-sealing device of a bearing. A bearing seat and a bearing cover are respectively provided with a ventilation screw pipe and a ventilation pipe in the form of threaded connection; a balance air pressure pipe is fixed between the ventilation screw pipe and the ventilation pipe by a laryngeal hoop for balancing a pneumatic tube; the bearing cover is added at the external side of an internal cover of the bearing; a dustproof ring is hotly sheathed on the rotating shaft at the external side of the bearing cover; when the rotating shaft rotates, the dustproof ring reduces the negative pressure formed during the rotating process of the rotating shaft, thus reducing the air pumping amount inside the bearing; furthermore, the air is compensated by an air-compensating circuit consisting of the ventilation screw pipe, the ventilation pipe, the laryngeal hoop and the balance air pressure pipe, thus eliminating the influence caused by the negative pressure on the bearing, and achieving the purpose of preventing the bearing from leaking oil. The air-sealing device has the characteristics of simple structure, obvious effect, convenient maintenance, and the like.
Description
Technical field
The utility model relates to a kind of air seal set, especially a kind of bearing air seal set.
Background technique
Existing domestic used in high-speed motor sliding bearing sees repeatly that in use the lubricant mist that causes bearing inside because of motor internal fan formation negative pressure is excessive is drawn onto the inboard phenomenon of motor, and in the time of especially on 2 utmost points, 4 utmost point motors, negative pressure is relatively large, and leakage of oil is more serious.Bearing producer has designed many different air seal structures at this problem at present, and is multiple-sealed as the sealing gland form of internal bearing cover is changed into, installs inboard dust ring etc. additional, but considers from structure and factor of safety, and such scheme all has deficiency.
Summary of the invention
The purpose of this utility model is a kind of simple in structure, bearing air seal set that effect is remarkable, safe and reliable of design.The technical solution of the utility model is so to realize:
A kind of bearing air seal set, comprise bearing support (1), rotating shaft (9), internal bearing cover (5) and be located at the bearing cap (7) of one side, be provided with equilibrium air pressure pipe (4) between described bearing support (1) and the bearing cap (7), described equilibrium air pressure pipe (4) one ends are connected on the ventilation screwed pipe of being located on the bearing support (1) (2), the other end is connected with breathing pipe (6) on being located at bearing cap (7), the outside of bearing cap (7) is provided with the dust ring (10) of band projection (11), and the projection (11) on the dust ring (10) is located in the groove (12) of bearing cap (7) one sides.
As preferably, described equilibrium air pressure pipe (4) is equipped with larynx hoop (3) with the joint of ventilation screwed pipe (2) and breathing pipe (6).
As preferably, monolateral gap is 0.5～0.8mm between the groove (12) of described bearing cap (7) one sides and the projection (11) on the dust ring (10).
As preferably, described dust ring (10) is a completely circular structure, and is interference fit between the rotating shaft (9).
The utility model is provided with ventilation screwed pipe (2) and breathing pipe (6) with the scyewed joint form respectively on bearing support (1) and bearing cap (7), ventilate between screwed pipe (2) and breathing pipe (6) with larynx hoop (3) stable equilibrium pneumatic tube (4), the outside of internal bearing cover (5) installs bearing cap (7) additional, the dust ring (10) of hot jacket is gone up in the rotating shaft (9) in bearing cap (7) outside, when rotating shaft (9) is rotated, the negative pressure that forms when reducing rotating shaft (9) rotation and toward the inner exhausting amount of bearing by dust ring (10), and by ventilation screwed pipe (2), breathing pipe (6), larynx hoop (3), the tonifying Qi loop compensation air that equilibrium air pressure pipe (4) is formed, thereby eliminate the influence that produces because of negative pressure, reach the purpose that prevents the bearing leakage of oil bearing.The utlity model has simple in structure, effect is remarkable, characteristics such as easy to maintenance.
Description of drawings
Accompanying drawing is a kind of structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing,, the technical solution of the utility model is described in further detail by embodiment.
Embodiment: with reference to the accompanying drawings, a kind of bearing air seal set, comprise bearing support (1), rotating shaft (9), internal bearing cover (5) and be located at the bearing cap (7) of one side, be provided with equilibrium air pressure pipe (4) between described bearing support (1) and the bearing cap (7), described equilibrium air pressure pipe (4) one ends are connected on the ventilation screwed pipe of being located on the bearing support (1) (2), and the other end is connected with breathing pipe (6) on being located at bearing cap (7).Equilibrium air pressure pipe (4) is equipped with larynx hoop (3) with the joint of ventilation screwed pipe (2) and breathing pipe (6).
The outside of bearing cap (7) is provided with the dust ring (10) of band projection (11), and the projection (11) on the dust ring (10) is located in the groove (12) of bearing cap (7) one sides.Monolateral gap is 0.6mm between described groove (12) and the projection (11).
Dust ring (10) is a completely circular structure, and is interference fit between the rotating shaft (9), is fixed in the rotating shaft (9) by hot jacket.
When rotating shaft (9) is rotated, the negative pressure that forms when reducing rotating shaft (9) rotation and toward the inner exhausting amount of bearing by dust ring (10), and tonifying Qi loop compensation air by ventilation screwed pipe (2), breathing pipe (6), larynx hoop (3), equilibrium air pressure pipe (4) composition, thereby eliminate the influence that produces because of negative pressure, reach the purpose that prevents the bearing leakage of oil bearing.
Claims (4)
1. bearing air seal set, comprise bearing support (1), rotating shaft (9), internal bearing cover (5) and be located at the bearing cap (7) of one side, it is characterized in that being provided with equilibrium air pressure pipe (4) between described bearing support (1) and the bearing cap (7), described equilibrium air pressure pipe (4) one ends are connected on the ventilation screwed pipe of being located on the bearing support (1) (2), the other end is connected with breathing pipe (6) on being located at bearing cap (7), the outside of bearing cap (7) is provided with the dust ring (10) of band projection (11), and the projection (11) on the dust ring (10) is located in the groove (12) of bearing cap (7) one sides.
2. a kind of bearing air seal set according to claim 1 is characterized in that the described equilibrium air pressure pipe (4) and the joint of ventilation screwed pipe (2) and breathing pipe (6) are equipped with larynx hoop (3).
3. a kind of bearing air seal set according to claim 1 is characterized in that monolateral gap is 0.5～0.8mm between the groove (12) of described bearing cap (7) one sides and the projection (11) on the dust ring (10).
4. a kind of bearing air seal set according to claim 1 is characterized in that described dust ring (10) is a completely circular structure, and is interference fit between the rotating shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201902515U CN201502712U (en) | 2009-08-04 | 2009-08-04 | Air-sealing device of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201902515U CN201502712U (en) | 2009-08-04 | 2009-08-04 | Air-sealing device of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502712U true CN201502712U (en) | 2010-06-09 |
Family
ID=42453645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201902515U Expired - Fee Related CN201502712U (en) | 2009-08-04 | 2009-08-04 | Air-sealing device of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502712U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983662A (en) * | 2012-12-04 | 2013-03-20 | 南阳防爆集团股份有限公司 | End cap bearing oil-leakage prevention structure for 2-pole box type generator |
| CN105526188A (en) * | 2016-01-05 | 2016-04-27 | 武汉光谷科威晶激光技术有限公司 | Direct water cooling bearing structure of fan for fast axis flow CO2 laser |
| CN106286606A (en) * | 2016-10-20 | 2017-01-04 | 陈雪刚 | End bracket type bearing |
| CN107546903A (en) * | 2016-06-23 | 2018-01-05 | 中电电机股份有限公司 | A kind of high-speed electric expreess locomotive leak-proof arrangement |
| CN108916244A (en) * | 2018-07-18 | 2018-11-30 | 上海宝骜工业技术服务有限公司 | A kind of thin oil lubricating bearing support leak proof technology |
-
2009
- 2009-08-04 CN CN2009201902515U patent/CN201502712U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983662A (en) * | 2012-12-04 | 2013-03-20 | 南阳防爆集团股份有限公司 | End cap bearing oil-leakage prevention structure for 2-pole box type generator |
| CN105526188A (en) * | 2016-01-05 | 2016-04-27 | 武汉光谷科威晶激光技术有限公司 | Direct water cooling bearing structure of fan for fast axis flow CO2 laser |
| CN107546903A (en) * | 2016-06-23 | 2018-01-05 | 中电电机股份有限公司 | A kind of high-speed electric expreess locomotive leak-proof arrangement |
| CN107546903B (en) * | 2016-06-23 | 2019-08-27 | 中电电机股份有限公司 | A kind of high-speed motor leak-proof arrangement |
| CN106286606A (en) * | 2016-10-20 | 2017-01-04 | 陈雪刚 | End bracket type bearing |
| CN108916244A (en) * | 2018-07-18 | 2018-11-30 | 上海宝骜工业技术服务有限公司 | A kind of thin oil lubricating bearing support leak proof technology |
| CN108916244B (en) * | 2018-07-18 | 2020-05-26 | 上海宝骜工业技术服务有限公司 | Leakage-proof device for thin oil lubrication bearing seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20150804 |
|
| EXPY | Termination of patent right or utility model |