CN101140012A - Multiple lips non-contact type bearing seal structure - Google Patents
Multiple lips non-contact type bearing seal structure Download PDFInfo
- Publication number
- CN101140012A CN101140012A CNA2007101332926A CN200710133292A CN101140012A CN 101140012 A CN101140012 A CN 101140012A CN A2007101332926 A CNA2007101332926 A CN A2007101332926A CN 200710133292 A CN200710133292 A CN 200710133292A CN 101140012 A CN101140012 A CN 101140012A
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- ring
- seal
- contact type
- inner ring
- fat
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention provides a multi-lip non-contact bearing seal structure, which comprises an outer ring, an inner ring and a seal ring; wherein the seal ring is arranged between the two sides of the outer ring and the inner ring, the seal ring is fixed in a seal groove of the outer ring, the position corresponding with the seal ring of the inner surface of the inner ring is provided with a step type seal surface, the inner hole end of the seal ring is provided with a fat guide lip extended inwards and a plurality of fat storage lips extending downwards and having a gap with the seal surface of the inner ring. The invention has the advantages of good seal effect and seal structure with small frictional moment, and completely meets with the design requirements under the working conditions of 2,0000 rpm.
Description
Technical field
The present invention relates to the sealing configuration that a kind of bearing is used, particularly a kind ofly be applied to all kinds of stuffing box bearing sealing configurations that need seal request.
Background technique
To engineering goods, its structure is compact more good more.Equally, the bearing of bearing swivel bearing in engineering goods structurally requires to carry seal arrangement to save the black box of other configuration for guaranteeing the compactness of structure.Carry the bearing of seal arrangement, can fill out corresponding lubricating grease in advance to strengthen work functions and working life according to the condition of its use.Existing bearing, its seal ring generally are fixed in the seal groove of outer ring of bearing.Whether contact according to seal ring and inner ring and to be divided into contact seal and noncontact seal two classes.The contact seal structure, its good sealing effect but friction torque is big is not suitable for being used for high speed situation; The noncontact seal structure, its friction torque is very little but sealing effect is relatively poor, only is applicable to that environment is better, the occasion not high to seal request.
The stuffing box bearing that is applied under the high speed rotating operating mode needs non-contacting structural type, and requires that good sealing effect is arranged, and existing sealing configuration can not meet the demands.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide and a kind ofly can satisfy the multiple lips non-contact type bearing seal structure that good sealing effect and very little friction torque are arranged simultaneously when high speed operation.
Technological scheme: multiple lips non-contact type bearing seal structure of the present invention, comprise outer ring, inner ring and seal ring, seal ring is located between the both sides of outer ring and inner ring, it is characterized in that described seal ring is fixed in the seal groove on the outer ring, position at the corresponding seal ring of the outer surface of inner ring is provided with the cascade sealing surface, and the interior nose end of seal ring is provided with leading fat lip and a plurality of downward extension and depositing the fat lip with there is the gap in sealing surface on the inner ring of extending internally.
Described seal ring is made up of skeleton and rubber.
The described fat lip of leading extends inwardly past sealing surface on the inner ring.
The described fat lip of leading is an angular shape.
Gap between the described sealing surface of depositing on fat lip and the inner ring is 0.1～0.3mm.
The described fat lip of depositing is a rectangle, adjacent deposit between the fat lip to form deposit the fat space.
Beneficial effect: the present invention compared with prior art, it is significantly a little a good sealing effect, and the friction torque of sealing configuration is little, adheres to specification fully under the operating conditions of 20000rpm.
Description of drawings
Fig. 1 is a schematic representation of the present invention.
Fig. 2 is a partial schematic diagram of the present invention.
Fig. 3 is a partial schematic diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention includes outer ring 1, inner ring 2 and seal ring 5, seal ring 5 is made up of skeleton 5a1 and rubber 5a2.
Seal ring 5 is installed in the seal groove 4 on the outer ring 1 of bearing, does not have relative movement with the outer ring.The interior nose end of seal ring 5 has several lips, and lead fat lip 6 and several of one of them wedge angle are deposited fat lip (deposit the fat lip as two, label is 7 and 8, and its shape can be a rectangle).Stepped sealing surface 3 on the outer surface of seal ring 5 and inner ring 2 has very little gap, and (be approximately 0.1～0.3mm), when bearing working, seal ring and inner ring have relative movement.
Pointed shape on the seal ring 5 lead fat lip 6, its procheilon extends beyond the sealing surface of inner ring to bearing centre, plays guiding lubricating grease and flows back to the outer round surface of bearing inner race and finally flow back to bearing working district (shown in the arrow among Fig. 2).
On the seal ring 5 several are deposited the very little gap of formation between fat lip and the sealing surface, deposit to form between the fat lip and deposit fat space (shown among the figure 9 and 10), when the bearing high speed rotating, can prevent effectively that the leakage of lubricating grease in the bearing and external dust or dust from entering bearing inside (shown in the arrow among Fig. 3).
The curve that arrow is arranged among Fig. 3 is the approach that lubricating grease is revealed in the bearing, can see lubricating grease difference owing to air-flow in the leakage process, can remain in place, fat space, and these fat have played the dust-tight effect again.
Claims (6)
1. multiple lips non-contact type bearing seal structure, comprise outer ring (1), inner ring (2) and seal ring (5), seal ring (5) is located between the both sides of outer ring and inner ring, it is characterized in that described seal ring (5) is fixed in the seal groove (4) on the outer ring, the position of nose end is provided with cascade sealing surface (3) in the corresponding seal ring of the outer surface of inner ring (2) (2), and the interior nose end of seal ring (2) is provided with leading fat lip (6) and a plurality of downward extension and depositing fat lip (7) with there is the gap in sealing surface (3) on the inner ring of extending internally.
2. multiple lips non-contact type bearing seal structure according to claim 1 is characterized in that described seal ring (5) is made up of skeleton (5a1) and rubber (5a2).
3. multiple lips non-contact type bearing seal structure according to claim 1 is characterized in that the described fat lip (6) of leading extends inwardly past sealing surface (3) on the inner ring.
4. according to claim 1 or 3 described multiple lips non-contact type bearing seal structures, it is characterized in that the described fat lip (6) of leading is angular shape.
5. multiple lips non-contact type bearing seal structure according to claim 1 is characterized in that the gap between the described sealing surface of depositing on fat lip (7) and the inner ring (2) (3) is 0.1～0.3mm.
6. multiple lips non-contact type bearing seal structure according to claim 1 or 5 is characterized in that the described fat lip (7) of depositing is a rectangle, adjacent deposit to form between the fat lip deposit the fat space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101332926A CN101140012A (en) | 2007-09-27 | 2007-09-27 | Multiple lips non-contact type bearing seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101332926A CN101140012A (en) | 2007-09-27 | 2007-09-27 | Multiple lips non-contact type bearing seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101140012A true CN101140012A (en) | 2008-03-12 |
Family
ID=39192077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101332926A Pending CN101140012A (en) | 2007-09-27 | 2007-09-27 | Multiple lips non-contact type bearing seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101140012A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586599B (en) * | 2009-04-07 | 2011-09-21 | 王乃明 | Ball bearing |
| CN104196877A (en) * | 2014-07-28 | 2014-12-10 | 洛阳维斯格轴承有限公司 | Constant-section ultrathin-wall bearing seal structure |
| CN106369064A (en) * | 2015-07-24 | 2017-02-01 | 株式会社捷太格特 | Sealing device and bearing device having the same |
| CN114810836A (en) * | 2022-04-28 | 2022-07-29 | 洛阳轴承研究所有限公司 | Wide temperature adaptation type bearing seal structure |
-
2007
- 2007-09-27 CN CNA2007101332926A patent/CN101140012A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586599B (en) * | 2009-04-07 | 2011-09-21 | 王乃明 | Ball bearing |
| CN104196877A (en) * | 2014-07-28 | 2014-12-10 | 洛阳维斯格轴承有限公司 | Constant-section ultrathin-wall bearing seal structure |
| CN106369064A (en) * | 2015-07-24 | 2017-02-01 | 株式会社捷太格特 | Sealing device and bearing device having the same |
| CN106369064B (en) * | 2015-07-24 | 2020-10-30 | 株式会社捷太格特 | Sealing device and bearing device provided with same |
| CN114810836A (en) * | 2022-04-28 | 2022-07-29 | 洛阳轴承研究所有限公司 | Wide temperature adaptation type bearing seal structure |
| CN114810836B (en) * | 2022-04-28 | 2024-03-26 | 洛阳轴承研究所有限公司 | Wide temperature adaptation type bearing sealing structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |