CN204716767U - Sealing configuration - Google Patents
Sealing configuration Download PDFInfo
- Publication number
- CN204716767U CN204716767U CN201520028235.1U CN201520028235U CN204716767U CN 204716767 U CN204716767 U CN 204716767U CN 201520028235 U CN201520028235 U CN 201520028235U CN 204716767 U CN204716767 U CN 204716767U
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- China
- Prior art keywords
- extension part
- sealing
- ring
- sealing lip
- elastic component
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Abstract
The utility model discloses a kind of sealing configuration, comprise the first seal ring being fixed to static circle and the second seal ring being fixed to rolling ring, first seal ring has the first support ring and connects the first elastic component of the first support ring, second seal ring has the second support ring, first support ring comprises the first radial extension part, second support ring comprises the second radial extension part, first radial extension part and the second radial extension part interval thus form seal space in the axial direction, first elastic component to extend in seal space and is provided with the first sealing lip and the second sealing lip, first sealing lip contacts with described second radial extension part, second sealing lip radially extends towards described rolling ring and forms contact sealing, the radial outside of the first elastic component is arranged with spring, thus provide pretightening force to the first sealing lip and the second sealing lip simultaneously, to reach good sealing effect.
Description
Technical field
The utility model relates to technical field of sealing technology, particularly relates to a kind of sealing configuration for bearing.
Background technique
As shown in Figure 1, existing a kind of bearing seal structure 1 be positioned at bearing shaft to one end.Bearing comprises outer ring 2, inner ring 3, rolling element 4 between outer ring 2 and inner ring 3 and retainer 5.Sealing configuration 1 comprises supporting portion 11 and sealed department 12.One end of supporting portion 11 is fixed on the outer circumferential face of bearing outer ring 2, and sealed department 12 is positioned at the other end of supporting portion 11, and is linked together with supporting portion 11 by one-body molded.Sealed department 12 comprises the sealing lip 13 contacted with bearing inner race 3 further.But this kind of sealing configuration 1, because only having a sealing lip 13, under the operating mode higher to seal request, often can not reach good sealing effect.
Therefore, need to provide a kind of sealing configuration of improvement to solve the problem.
Model utility content
The problem that the utility model solves is to provide a kind of sealing configuration of favorable sealing property.
For solving the problem, the utility model adopts following technological scheme: a kind of sealing configuration, be placed between a static circle and a rolling ring, sealing structure comprises the first seal ring being fixed to described static circle and the second seal ring being fixed to described rolling ring, described first seal ring has the first support ring and connects the first elastic component of the first support ring, described second seal ring has the second support ring, described first support ring comprises radially towards the first radial extension part that described rolling ring extends, described second support ring comprises radially towards the second radial extension part that described static circle extends, described first radial extension part and described second radial extension part interval thus form seal space in the axial direction, described first elastic component to extend in seal space and is provided with the first sealing lip and the second sealing lip, described first sealing lip contacts with described second radial extension part, described second sealing lip radially extends towards described rolling ring and forms contact sealing, the radial outside of described first elastic component is arranged with spring, thus provide pretightening force to the first sealing lip and the second sealing lip simultaneously.
As further improvement of the utility model, the internal surface that described second radial extension part contacts with the first sealing lip is curved.
As further improvement of the utility model, described second seal ring also comprises the second elastic component be connected with described second support ring, and described second elastic component extends into described seal space and comprises the lip be made up of teflon contacted with described first radial extension part.
As further improvement of the utility model, described second elastic component comprises the main part be connected with described lip, and this main part is curved shape or wavy.
As further improvement of the utility model, described second elastic component is positioned at the radial outside of described first elastic component.
As further improvement of the utility model, described second support ring also comprises and connects described second radial extension part and the second axial extension part extended vertically, and described second sealing lip contacts with described second axial extension part.
As further improvement of the utility model, the projection of kernel of section on the second axial extension part of spring compares the contact area of the second sealing lip and the second axial extension part closer to described first sealing lip.
As further improvement of the utility model, described static circle is bearing outer ring, and described rolling ring is bearing inner race.
Compared with prior art, the utility model has the following advantages: the first elastic component has respectively towards axial and radial two sealing lips extended, and by spring to two sealing lips pretension simultaneously, ensure that good sealing effect.
Accompanying drawing explanation
Fig. 1 is the fragmentary cross-sectional view of prior art with the bearing of sealing configuration;
Fig. 2 is the fragmentary cross-sectional view of the utility model with the bearing of sealing configuration.
Embodiment
As shown in Figure 2, the utility model sealing configuration 10 comprises: be fixed to the first seal ring 20 of bearing outer ring 40 and be fixed to the second seal ring 30 of bearing inner race 50.First seal ring 20 comprises the first support ring 21 and the first elastic component 22, wherein, the first support ring 21 comprise the first axial extension part 211 and from one end of the first axial extension part 211 towards the first radial extension part 212 that bearing inner race 50 extends.Second seal ring 30 comprises the second support ring 31 and the second elastic component 32, wherein, second support ring 31 comprises the second axial extension part 311 and the radial extension part of the second radial extension part 312, first 212 that extends towards bearing outer ring 40 from one end of the second axial extension part 311 and the second radial extension part 312 axially spaced-apart thus form cartridge seal space 60.First elastic component 22 is connected to the end of the first radial extension part 212 and extends in seal space 60, and the second elastic component 32 to be connected on the second radial extension part 312 and to extend in seal space 60.
Further, first elastic component 22 comprises the first sealing lip 221 that extension part 312 radial with second contacts and the second sealing lip 222 contacted with the second axial extension part 311, other first elastic component 22 is provided with annular recess 223 at radial outside, one spring 70 is contained in annular recess 223 thus provides pretightening force to the first sealing lip 221 and the second sealing lip 222 simultaneously, ensures the contact sealing that the first sealing lip 221 and the second sealing lip 222 remain good.Preferably, the projection of kernel of section A on the second axial extension part 311 of described spring 70 compares the contact area of the second sealing lip 222 and the second axial extension part 311 closer to the first sealing lip 221, and such spring 70 better can balance the power be applied on the first sealing lip 221 and the second sealing lip 222.Preferably, the internal surface that second radial extension part 312 contacts with the first sealing lip 221 is curved, like this when the first sealing lip 221 weares and teares, the first sealing lip 221 easilier can slide onto next position under the active force of spring 70, continues to keep good contact sealing.
Second elastic component 32 is positioned at the radial outside of the first elastic component 22, it lip 322 comprising main part 321 and be positioned at main part end.This lip 322 is made up of polytetrafluoroethylmaterial material and is held in described first radial extension part 212.Described lip 322 is connected to described main part 321 by modes such as one-body molded or bondings.Because polytetrafluoroethylmaterial material has low coefficient of friction and high temperature resistant, the lip 322 that material is made thus has good wear resistance and can not produce a large amount of heats in bearing working.Described main part 321 is in the axial direction in curved shape or wavy, thus the pretightening force of giving lip 322 certain.When lip 322 part wears, by promotion lip 322, to make lip 322 remain, the contact that radial extension part 212 is good with first seals main part 321.
Certainly, for the first support ring 21, second support ring 31, also only can have the first radial extension part 212 and the second radial extension part 312, now, the second sealing lip 222 contacts with the outer surface of bearing inner race 50.In addition, in the present embodiment, sealing configuration is used for stuffing box bearing, and certainly, sealing structure also can be applicable to other occasion.
In the utility model, the first elastic component has respectively towards axial and radial two sealing lips extended, and by spring to two sealing lips pretension simultaneously, ensure that good sealing effect.
Although the utility model is only described with regard to some exemplary embodiment, these descriptions should only exemplarily and not be construed as limiting.In the scope that appended claims is recorded, do not departing from the utility model spirit and scope situation, various change is all possible.
Claims (8)
1. a sealing configuration, be placed between a static circle and a rolling ring, sealing structure comprises the first seal ring being fixed to described static circle and the second seal ring being fixed to described rolling ring, described first seal ring has the first support ring and connects the first elastic component of the first support ring, described second seal ring has the second support ring, described first support ring comprises radially towards the first radial extension part that described rolling ring extends, described second support ring comprises radially towards the second radial extension part that described static circle extends, described first radial extension part and described second radial extension part interval thus form seal space in the axial direction, it is characterized in that, described first elastic component to extend in seal space and is provided with the first sealing lip and the second sealing lip, described first sealing lip contacts with described second radial extension part, described second sealing lip radially extends towards described rolling ring and forms contact sealing, the radial outside of described first elastic component is arranged with spring, thus provide pretightening force to the first sealing lip and the second sealing lip simultaneously.
2. sealing configuration according to claim 1, is characterized in that, the internal surface that described second radial extension part contacts with the first sealing lip is curved.
3. sealing configuration according to claim 1, it is characterized in that, described second seal ring also comprises the second elastic component be connected with described second support ring, and described second elastic component extends into described seal space and comprises the lip be made up of teflon contacted with described first radial extension part.
4. sealing configuration according to claim 3, is characterized in that, described second elastic component comprises the main part be connected with described lip, and this main part is curved shape or wavy.
5. sealing configuration according to claim 3, is characterized in that, described second elastic component is positioned at the radial outside of described first elastic component.
6. sealing configuration according to claim 1, is characterized in that, described second support ring also comprises and connects described second radial extension part and the second axial extension part extended vertically, and described second sealing lip contacts with described second axial extension part.
7. sealing configuration according to claim 6, is characterized in that, the projection of kernel of section on the second axial extension part of spring compares the contact area of the second sealing lip and the second axial extension part closer to described first sealing lip.
8. sealing configuration according to any one of claim 1 to 7, is characterized in that, described static circle is bearing outer ring, and described rolling ring is bearing inner race.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028235.1U CN204716767U (en) | 2015-01-15 | 2015-01-15 | Sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028235.1U CN204716767U (en) | 2015-01-15 | 2015-01-15 | Sealing configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716767U true CN204716767U (en) | 2015-10-21 |
Family
ID=54315769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520028235.1U Active CN204716767U (en) | 2015-01-15 | 2015-01-15 | Sealing configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716767U (en) |
-
2015
- 2015-01-15 CN CN201520028235.1U patent/CN204716767U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |