CN205064595U - sealing structure for bearing - Google Patents
sealing structure for bearing Download PDFInfo
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- CN205064595U CN205064595U CN201520670145.2U CN201520670145U CN205064595U CN 205064595 U CN205064595 U CN 205064595U CN 201520670145 U CN201520670145 U CN 201520670145U CN 205064595 U CN205064595 U CN 205064595U
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- extension part
- sealing
- section
- lip
- radial extension
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- 238000007789 sealing Methods 0.000 title claims abstract description 79
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a seal structure for bearing, including being used for fixing to the first skeleton of bearing inner race, a second skeleton for fixing to the bearing inner race, adhere to first sealing member on first skeleton and adhere to the second sealing member on the second skeleton, the second sealing member is located the radial outside of first sealing member, first radial extension includes first section and the second section that connects gradually towards the bearing inner race from the bearing inner race, the second section extends towards the radial extension of second, the second sealing member is including extending to the seal segment of first radial extension, this seal segment forms in proper order with the sealed main lip of second section contact and with the sealed subsidiary lip of first section contact. The utility model discloses not only radially set up first sealing member and second sealing member to a sealed section of second sealing member can realize the contact seal in a plurality of positions, thereby has realized good sealed effect when guaranteeing that seal structure is compact.
Description
Technical field
The utility model relates to technical field of bearings, particularly relates to the sealing configuration for bearing.
Background technique
As shown in Figure 1, existing sealing configuration comprises the first sleeve 4 of being fixed on bearing outer ring 1 and to be arranged on axle 3 and in relative rotation second sleeve 5 anti-with axle 3, and this second sleeve 5 offsets with bearing inner race 2 in the axial direction.Labyrinth structure 61, v shaped ring 62 and sealing lip 63 has been set gradually from outside to inside between the first sleeve 4 and the second sleeve 5.Such sealing configuration not only needs the space taking Bearing outer, and complex structure, often can because assembling is improper cause seal failure.
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 the simple and sealing configuration of good sealing effect of a kind of structure.
For solving the problem, the utility model adopts following technological scheme: a kind of sealing configuration for bearing, comprise the first skeleton for being fixed to bearing outer ring, for being fixed to the second skeleton of bearing inner race, the second Sealing being attached to the first Sealing on the first skeleton and being attached on the second skeleton, described first skeleton comprises the first radial extension part, described second skeleton comprises the second radial extension part, second radial extension part and the first radial extension part are in the axial direction separately and be positioned at the axially outside of the first radial extension part, described second Sealing is positioned at the radial outside of described first Sealing, described first radial extension part comprises first section and second section that connect successively towards bearing inner race from bearing outer ring, described second section extends towards described second radial extension part, described second Sealing comprises the seal section extending to described first radial extension part, sealing section forms the main lip that to contact with described second section and seal successively and contacts with described first section the attached lip sealed.
Further, described first skeleton also comprises the first axial extension part, and described seal section also comprises and connects described attached lip and and the centrifugal lip that extends of inclination forming gap between described first axial extension part.
Further, the periphery of described main lip is provided with annular spring.
Further, described second section tilts to extend.
Further, the surface that described second section and described main lipped joint touch is plane of inclination.
Further, opening is formed between described second radial extension part and described first axial extension part, described second Sealing comprises another the centrifugal lip extending into described opening, and this another centrifugal lip tilts to extend and and forms gap between described first axial extension part.
Further, described first radial extension part also comprises the 3rd section connecting described second section, and the first Sealing is attached to the end of described 3rd section.
Further, described second skeleton comprises the second axial extension part, and described first Sealing comprises and forms with described second axial extension part the first lip contacting and seal, and this first lip extends towards Bearing inner.
Further, described first Sealing also comprises another seal section extended towards described second radial extension part, and this another seal section forms another main lip of contacting with described second axial extension part and sealing successively and contacts with described second radial extension part the second lip sealed.
Further, the periphery of another main lip described is provided with the spring of annular.
Compared with prior art, the utility model has the following advantages: arrange the first Sealing and the second Sealing diametrically, and the second Sealing seal section can realize contact sealing in multiple position, thus achieves good sealing effect while guarantee sealing configuration is compact.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of prior art sealing configuration;
Fig. 2 is the sectional drawing of the utility model first mode of execution sealing configuration;
Fig. 3 is the sectional drawing of the utility model second mode of execution sealing configuration;
Fig. 4 is the sectional drawing of the utility model the 3rd mode of execution sealing configuration.
Embodiment
As shown in Figure 2, the utility model sealing configuration comprises the first skeleton 30 be mounted on bearing outer ring 10, be attached to the first Sealing 50 on the first skeleton 30, the second Sealing 60 being arranged on the second skeleton 40 on bearing inner race 20 and being attached on the second skeleton 40.
The first radial extension part 32 that first skeleton 30 comprises the first axial extension part 31 and extends towards bearing inner race 20, second skeleton 40 comprise the second axial extension part 41 and the radial extension part of the second radial extension part 42, second 42 that extends towards bearing outer ring 10 and the first radial extension part 32 in the axial direction interval arrange and the second radial extension part 42 closer to the outside of bearing.First radial extension part 32 comprises first section, 321, second section 322 and the 3rd section 323 of connecting successively, described first section 321 is connected with described first axial extension part 31, described second section 322 extends towards described second radial extension part 42, keeps at a certain distance away between described 3rd section 323 and described second axial extension part 41.Opening 70 is formed between second radial extension part 42 and described first axial extension part 31.
Particularly, first Sealing 50 is attached to the end of described 3rd section 323 and comprises the first seal section and the second seal section, first seal section is configured to extension part 41 axial with second and forms the first lip 51 contacting and seal, first lip 51 extends, mainly in order to stop oil leakage towards Bearing inner.Second seal section extends towards the second radial extension part 42 and forms the first main lip 52 of contacting with the second axial extension part 41 and sealing successively and contact with the second radial extension part 42 the second lip 53 sealed.First main lip 52 and the second lip 53 mainly prevent outside dirt from entering Bearing inner.In order to realize better sealing effect, the periphery of the first main lip 52 is provided with the first spring 80 of ring-type.
Second Sealing 60 comprises the 3rd lip 61 extending into described opening 70 and the seal section extending to the first radial extension part 32, sealing section formed successively to contact with described second section 322 seal the second main lip 62, to contact the attached lip 63 that seals with described first section 321 and form the 4th lip 64 in the first gap with the first axial extension part 31.3rd lip 61 extends towards described first axial extension part 31 inclination and also and between the first axial extension part 31 forms the second gap, and here the dirt entered in the collecting tank 100 of seal section formation can be thrown away by centrifugal force as centrifugal lip by the 3rd lip 61.Described 4th lip 64 is same as centrifugal lip, its bearing of trend is identical with the direction that the 3rd lip 61 extends, once the dirt in collecting tank 100 enters the space of attached lip 63 radial outside further by the first gap, then this part dirt can be thrown in collecting tank 100 by centrifugal force by the 4th lip 64 again, and then is thrown to Bearing outer by the 3rd lip 61.
In addition, in other embodiments, also the first axial extension part 31 and the second axial extension part 41 can not be had, such first lip 51 and the first main lip 52 are by exterior surface that is direct and bearing inner race 20, first gap is formed between the 4th lip 64 and the internal surface of bearing outer ring 10, and the second gap is formed between the 3rd lip 61 and the internal surface of bearing outer ring 10.
As shown in Figure 3, for the utility model sealing configuration second mode of execution schematic diagram, with the first mode of execution unlike, the second Sealing 60 does not have the 4th lip 64, but be provided with the second spring 90 of ring-type in the periphery of the second main lip 62, good sealing effect can be realized equally.Preferably, second section 322 tilts to extend, and can increase the extendable room of the second main lip 62 like this, particularly, when the second main lip 62 may wear to a certain degree, the second main lip 62 can move along inclined-plane under spring force, again keeps the good contact with second section 322.The surface contacted with the second main lip 62 also only can be set to plane of inclination by certain second section 322.
As shown in Figure 4, for the utility model sealing configuration the 3rd mode of execution schematic diagram, the place different from the first mode of execution is only that the periphery at the second main lip 62 is provided with the second spring 90 of ring-type, and the sealing configuration comparing the first mode of execution has better sealing effect.
In the utility model, on the one hand, arrange the first Sealing and the second Sealing diametrically, on the other hand, a seal section of the second Sealing can realize contact sealing in multiple position, thus achieves good sealing effect while guarantee compact structure.
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 (10)
1. the sealing configuration for bearing, comprise the first skeleton for being fixed to bearing outer ring, for being fixed to the second skeleton of bearing inner race, the second Sealing being attached to the first Sealing on the first skeleton and being attached on the second skeleton, described first skeleton comprises the first radial extension part, described second skeleton comprises the second radial extension part, second radial extension part and the first radial extension part are in the axial direction separately and be positioned at the axially outside of the first radial extension part, described second Sealing is positioned at the radial outside of described first Sealing, it is characterized in that, described first radial extension part comprises first section and second section that connect successively towards bearing inner race from bearing outer ring, described second section extends towards described second radial extension part, described second Sealing comprises the seal section extending to described first radial extension part, sealing section forms the main lip that to contact with described second section and seal successively and contacts with described first section the attached lip sealed.
2. the sealing configuration for bearing according to claim 1, it is characterized in that, described first skeleton also comprises the first axial extension part, and described seal section also comprises and connects described attached lip and and the centrifugal lip that extends of inclination forming gap between described first axial extension part.
3. the sealing configuration for bearing according to claim 1, is characterized in that, the periphery of described main lip is provided with annular spring.
4. the sealing configuration for bearing according to claim 3, is characterized in that, described second section tilts to extend.
5. the sealing configuration for bearing according to claim 3, is characterized in that, the surface that described second section and described main lipped joint touch is plane of inclination.
6. the sealing configuration for bearing according to claim 2, it is characterized in that, opening is formed between described second radial extension part and described first axial extension part, described second Sealing comprises another the centrifugal lip extending into described opening, and this another centrifugal lip tilts to extend and and forms gap between described first axial extension part.
7. the sealing configuration for bearing according to claim 1, is characterized in that, described first radial extension part also comprises the 3rd section connecting described second section, and the first Sealing is attached to the end of described 3rd section.
8. sealing configuration according to any one of claim 1 to 7, it is characterized in that, described second skeleton comprises the second axial extension part, and described first Sealing comprises and forms with described second axial extension part the first lip contacting and seal, and this first lip extends towards Bearing inner.
9. the sealing configuration for bearing according to claim 8, it is characterized in that, described first Sealing also comprises another seal section extended towards described second radial extension part, and this another seal section forms another main lip of contacting with described second axial extension part and sealing successively and contacts with described second radial extension part the second lip sealed.
10. the sealing configuration for bearing according to claim 9, is characterized in that, the periphery of another main lip described is provided with the spring of annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670145.2U CN205064595U (en) | 2015-08-31 | 2015-08-31 | sealing structure for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670145.2U CN205064595U (en) | 2015-08-31 | 2015-08-31 | sealing structure for bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064595U true CN205064595U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520670145.2U Active CN205064595U (en) | 2015-08-31 | 2015-08-31 | sealing structure for bearing |
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| Country | Link |
|---|---|
| CN (1) | CN205064595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307077A (en) * | 2017-07-27 | 2019-02-05 | 舍弗勒技术股份两合公司 | Seal assembly |
-
2015
- 2015-08-31 CN CN201520670145.2U patent/CN205064595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307077A (en) * | 2017-07-27 | 2019-02-05 | 舍弗勒技术股份两合公司 | Seal assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |