CN201137700Y - Non-contact oil seal device - Google Patents
Non-contact oil seal device Download PDFInfo
- Publication number
- CN201137700Y CN201137700Y CNU2007200776836U CN200720077683U CN201137700Y CN 201137700 Y CN201137700 Y CN 201137700Y CN U2007200776836 U CNU2007200776836 U CN U2007200776836U CN 200720077683 U CN200720077683 U CN 200720077683U CN 201137700 Y CN201137700 Y CN 201137700Y
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- CN
- China
- Prior art keywords
- sealing ring
- oil
- double
- shaft
- layer
- 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 non-contact oil seal device, which comprises a hair felt and a sealing ring, wherein the sealing ring is sleeved on a shaft, the hair felt is arranged between the sealing ring and the shaft, and a bearing box wall is sleeved on the sealing ring, wherein the sealing ring is a double-layer sealing ring, the inner diameter of the lateral wall between the double-layer sealing ring is bigger than the other diameter of the shaft, the hair felt is arranged between the double-layer sealing ring and the shaft, an oil feed back groove is formed by the double-layer sealing ring and the lateral wall on the middle section, and an oil feed back hole is arranged on the lateral wall. The oil feed back groove which is formed by the double-layer sealing ring is arranged in a bearing sealing device by the utility model, lubricating oil is thrown on the lateral wall of the oil feed back groove through the centrifugal force for rotating objects, and the lubricating oil flows back to an oil tank through an oil return hole. The non-contact oil seal device has simple structure and convenient processing and manufacturing, which eliminates the friction between the sealing ring and the shaft, and prolongs the service of a sealing device.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to shaft sealer, particularly a kind of contactless oil-sealing arrangement.
Background technique:
Bearing generally adopts grease or thin oil lubricant, requires between bearing housing and the axle sealing to be set.In the prior art, general employing has the sealing of contact or labyrinth seal that bearing housing and axle are sealed.But contact seal is arranged, as the sealing of outside framework oil seal formula, can be subjected to the restriction of a peripheral velocity, and outside framework oil seal is easy to wear, the working life of Sealing is short; And labyrinth seal structure is comparatively complicated, and is higher to installation requirement.
Summary of the invention:
The purpose of this utility model provides a kind of contactless oil-sealing arrangement, and described this contactless oil-sealing arrangement will solve that prior art middle (center) bearing seal arrangement is easy to wear, working life is short, baroque technical problem.
This contactless oil-sealing arrangement of the present utility model is made of bearing housing and seal ring, described seal ring is arranged in the bearing housing, wherein, be provided with cavity in the described seal ring, be provided with two-layer felt in the described cavity, be provided with oil-return groove between the described two-layer felt, be provided with spill port in the sidewall of oil-return groove.
Further, described two-layer felt is parallel.
Working principle of the present utility model is: add an oil-return groove between the sealing of twice felt, part thin oil direct-axis in the bearing housing is by after the first road felt sealing, under action of centrifugal force, oil is thrown in the oil-return groove, flow to the oil groove sidewall along the oil return cell wall, spill port by the oil groove sidewall flows back in the bearing housing, thereby reaches the purpose of sealing.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model is arranged at the oil-return groove that the double-layer seal ring constitutes in the associated sealing arrangement for bearings, centrifugal force by rotating object is thrown to the oil-return groove sidewall with lubricant oil, flow back to fuel tank by spill port again, simple in structure, convenient processing and manufacture, eliminate the friction between seal ring and the axle, prolonged the working life of seal arrangement.
Description of drawings:
Fig. 1 is the structural representation of contactless oil-sealing arrangement of the present utility model.
Embodiment:
As shown in Figure 1, contactless oil-sealing arrangement of the present utility model is made of felt 1 and seal ring 2, described seal ring 2 sockets are arranged on the axle 3, be provided with described felt 1 between described seal ring 2 and the described axle 3,4 sockets of bearing tank wall are arranged at described seal ring 2 places, wherein, described seal ring 2 tool double-layer seal rings, sidewall 5 internal diameters between the described double-layer seal ring 2 are greater than the diameter of described axle 3, be provided with described felt 1 between described two-layer seal ring 2 and the described axle 3, described two-layer seal ring 2 and intermediate section sidewall 5 constitute oil-return groove, and described sidewall 5 is provided with spill port 7.
Further, the axis of the axis of described spill port 7 and described axle 3 tilts, and described spill port 7 tilts in described bearing housing.
Claims (2)
1. contactless oil-sealing arrangement, constitute by bearing housing and seal ring, described seal ring is arranged in the bearing housing, it is characterized in that: be provided with cavity in the described seal ring, be provided with two-layer felt in the described cavity, be provided with oil-return groove between the described two-layer felt, be provided with spill port in the sidewall of oil-return groove.
2. contactless oil-sealing arrangement as claimed in claim 1 is characterized in that: described two-layer felt is parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200776836U CN201137700Y (en) | 2007-12-28 | 2007-12-28 | Non-contact oil seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200776836U CN201137700Y (en) | 2007-12-28 | 2007-12-28 | Non-contact oil seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137700Y true CN201137700Y (en) | 2008-10-22 |
Family
ID=40038387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200776836U Expired - Fee Related CN201137700Y (en) | 2007-12-28 | 2007-12-28 | Non-contact oil seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137700Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818025A (en) * | 2011-06-08 | 2012-12-12 | 海洋王照明科技股份有限公司 | Sealing structure for rotary shaft and lamp |
| CN103016339A (en) * | 2011-09-27 | 2013-04-03 | 株式会社爱德克斯 | Shaft seal device and pump apparatus using the same |
| CN108869746A (en) * | 2018-08-17 | 2018-11-23 | 苏州欧拉透平机械有限公司 | Slewing oil enveloping structure |
| CN110671230A (en) * | 2019-11-19 | 2020-01-10 | 潍柴动力股份有限公司 | Sealing structure and engine |
-
2007
- 2007-12-28 CN CNU2007200776836U patent/CN201137700Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818025A (en) * | 2011-06-08 | 2012-12-12 | 海洋王照明科技股份有限公司 | Sealing structure for rotary shaft and lamp |
| CN102818025B (en) * | 2011-06-08 | 2015-04-01 | 海洋王照明科技股份有限公司 | Sealing structure for rotary shaft and lamp |
| CN103016339A (en) * | 2011-09-27 | 2013-04-03 | 株式会社爱德克斯 | Shaft seal device and pump apparatus using the same |
| US9297388B2 (en) | 2011-09-27 | 2016-03-29 | Advics Co., Ltd. | Shaft seal device and pump apparatus using the same |
| CN103016339B (en) * | 2011-09-27 | 2016-11-02 | 株式会社爱德克斯 | Shaft sealer and use the pump installation of this shaft sealer |
| CN108869746A (en) * | 2018-08-17 | 2018-11-23 | 苏州欧拉透平机械有限公司 | Slewing oil enveloping structure |
| CN110671230A (en) * | 2019-11-19 | 2020-01-10 | 潍柴动力股份有限公司 | Sealing structure and engine |
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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: 20081022 Termination date: 20121228 |