CN204239455U - A kind of doubling sealed bearing - Google Patents
A kind of doubling sealed bearing Download PDFInfo
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- CN204239455U CN204239455U CN201420692581.5U CN201420692581U CN204239455U CN 204239455 U CN204239455 U CN 204239455U CN 201420692581 U CN201420692581 U CN 201420692581U CN 204239455 U CN204239455 U CN 204239455U
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- sealed
- seal lip
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Abstract
The utility model relates to a kind of doubling sealed bearing, its black box comprises inner seal circle and the outer side seal circle of axially spaced-apart layout, the interior sealing lip of inner seal circle comprises the upper sealed lip radially distributed, intermediate seal lip, lower seal lip, upper sealed lip, intermediate seal lip and lower seal lip lip are towards one end in bearing bore, the outer peripheral surface of bearing inner race is provided with U-shaped dustproof groove, Spielpassung between upper sealed lip and bearing inner race outer peripheral surface, intermediate seal lip and lower seal lip all with U-shaped dustproof groove axial end interference fit, the first Seal cage is formed between upper sealed lip and intermediate seal lip, the second Seal cage is formed between intermediate seal lip and lower seal lip, gap-forming the 3rd Seal cage between bottom lower seal lip and U-shaped dustproof groove.The utility model compared with prior art, has good seal performance, uses, the advantage of long service life in the rugged environment such as applicable dust fills the air, muddy water splashing.
Description
Technical field
The utility model relates to technical field of bearings, is specifically related to a kind of doubling sealed bearing.
Background technique
Transmission shaft center support bearing is mainly used in automobile industry, comprises heavy-duty highway automobile, Dual purpose pickup truck, Medium Truck, school bus and large fluffy lorry etc.Main and the transmission shaft of this class bearing with the use of, Main Function compensates transmission shafts to the alignment error with angle, and the displacement caused due to relative position change between gearbox and ransaxle, together with relative secondary members, ensure the smooth operation of transmission shaft, the power of automobile passes to ransaxle by motor through gearbox the most at last.This bearing is positioned at automobile chassis bottom, usually fill the air at dust, muddy water splash environment in work, therefore have strict requirement to bearing seal.Often because Bearing inner enters impurity, moisture and make grease failures after general two-sided individual layer stuffing box bearing installation, and then cause bearing failure.
For strengthening bearing seal performance in prior art, people are to this has been corresponding Curve guide impeller, as China Patent No. disclosed in the patent documentation of 200920313889.3 " double-layer seal bearing " (authorize publication number be: CN 201575047 U, authorized announcement date is: 2010. 09. 08), it adopts and arrange inside and outside dual seal ring on bearing Single port, to reach the requirement improving bearing seal performance, but design mainly for preventing grease from leaking due to it; Therefore structural design that medial and lateral ring structure and inside and outside circle are sealed and matched is unreasonable, cause waterproof and dust-proof effect poor, cannot well be applied in the rugged environment such as dust fills the air, muddy water splashing.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of reasonable in design, good seal performance, can adapt to the doubling sealed bearing of rugged environment work very well.
For achieving the above object, the utility model provides following technological scheme: a kind of doubling sealed bearing, include bearing inner race and bearing outer ring, bearing inner race formation bearing bore mutually nested with bearing outer ring, rolling element is provided with in bearing bore, bearing bore axial port is provided with black box, described black box includes inner seal circle and the outer side seal circle of axially spaced-apart layout, inner seal circle external diameter end is assemblied in the inner side dustproof groove of bearing outer ring, inner seal circle inner-diameter end has interior sealing lip, the interior sealing lip of inner seal circle and bearing inner race outer circle wall are conflicted and are sealed and matched, described outer side seal circle inner-diameter end is assemblied on bearing inner race, outer side seal circle external diameter end has outer seal lip, outer seal lip and bearing outer ring inner peripheral wall are conflicted and are sealed and matched, it is characterized in that: the interior sealing lip of described inner seal circle includes sealed lip, intermediate seal lip and lower seal lip, upper sealed lip, intermediate seal lip and lower seal lip radially distribute, upper sealed lip, intermediate seal lip and lower seal lip lip are towards one end in bearing bore, the outer peripheral surface of bearing inner race is provided with U-shaped dustproof groove, Spielpassung between upper sealed lip and bearing inner race outer peripheral surface, intermediate seal lip and lower seal lip all with U-shaped dustproof groove axial end interference fit, the first Seal cage is formed between upper sealed lip and intermediate seal lip, the second Seal cage is formed between intermediate seal lip and lower seal lip, gap-forming the 3rd Seal cage between bottom lower seal lip and U-shaped dustproof groove.
By adopting technique scheme, upper sealed lip and bearing inner race Spielpassung, ensure that bearing does not contact with bearing inner race in operation process, reduce bearing frictional torque, Bearing inner grease can be stirred in the running simultaneously, prevent grease from leaking outside, intermediate seal lip, lower seal lip and U-shaped dustproof groove respective outer side edges, play well dust-proof, waterproof, the performances such as anti-muddy water, in addition the first of outer side seal circle stops, the impurity entered between outer side seal circle and inner seal circle is less, the inner seal circle of said structure and bearing inner race are sealed and matched structural design, make bearing be applied in dust to fill the air, also good sealing effect can be played in the rugged environment such as muddy water splashing, ensure operational safety and the working life of bearing.
The utility model is set to further: described bearing inner race is positioned at U-shaped dustproof groove and is provided with stepped slot near bearing bore side, and the upper sealed lip of described inner seal circle stretches in stepped slot, upper sealed lip and step cell wall Spielpassung.
By adopting technique scheme, upper sealed lip and stepped slot form the sealed pathway of labyrinth-like, improve sealability.
The utility model is set to further: described bearing outer ring inner peripheral wall is provided with the inclined-plane coordinated with outer seal lip, inclined-plane is low away from bearing bore one end, near high being obliquely installed in bearing bore one end, the outer seal lip of outer side seal circle is conflicted and is sealed and matched on the inclined-plane of bearing outer ring.
By adopting technique scheme, the outer seal lip of outer side seal circle coordinates with adopting inclined-plane between bearing outer ring, is formed axially and radial seal elastic force, has the more reliable advantage that is sealed and matched.
The utility model is set to further: the inner-diameter end of described outer side seal circle is formed with tubular assembly set portion towards the upset of bearing bore one end, outer side seal circle through tubular assembly set portion interference on bearing inner race.
By adopting technique scheme, the assembling of outer side seal circle reliably facilitates, and outer side seal circle is not easily thrown out of.
The utility model is set to further: the outer seal lip of described outer side seal circle has two sealed lips.
By adopting technique scheme, outer side seal circle adopts double-sealing lip designs, and sealability is better.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model specific embodiment doubling sealed bearing structural representation;
Fig. 2 is Figure 1A part partial enlarged view.
Embodiment
See accompanying drawing 1 and accompanying drawing 2, a kind of doubling sealed bearing disclosed in the utility model, include bearing inner race 1 and bearing outer ring 2, bearing inner race 1 formation bearing bore 3 mutually nested with bearing outer ring 2, be provided with rolling element 4 in bearing bore 3, bearing bore 3 axial port is provided with black box, and described black box includes inner seal circle 5 and the outer side seal circle 6 of axially spaced-apart layout, form seal chamber 7 between inner seal circle 5 and outer side seal circle 6, form double sealing structure like this; Described inner seal circle 5 external diameter end is assemblied in the inner side dustproof groove 21 of bearing outer ring 2, and inner seal circle 5 inner-diameter end has interior sealing lip, and the interior sealing lip of inner seal circle 5 and bearing inner race 1 outer circle wall are conflicted and be sealed and matched; Described outer side seal circle 6 inner-diameter end is assemblied on bearing inner race 1, wherein, the inner-diameter end of outer side seal circle 6 is formed with tubular assembly set portion 62 towards the upset of bearing bore 3 one end, outer side seal circle 6 through tubular assembly set portion 62 interference on bearing inner race 1, corresponding assembly structure is simple, easy to process, and the assembling of outer side seal circle reliably facilitates, outer side seal circle is not easily thrown out of; Described outer side seal circle 6 external diameter end has outer seal lip 61, and outer seal lip 61 and bearing outer ring 2 inner peripheral wall are conflicted and are sealed and matched.
For ensureing to be sealed and matched reliably between outer side seal circle 6 and bearing outer ring 2, described bearing outer ring 2 inner peripheral wall is provided with the inclined-plane 22 coordinated with outer seal lip 61, inclined-plane 22 is low away from bearing bore 3 one end, near high being obliquely installed in bearing bore 3 one end, the outer seal lip 61 of outer side seal circle 6 is conflicted and to be sealed and matched on the inclined-plane 22 of bearing outer ring 2; The outer seal lip 61 of outer side seal circle 6 adopts inclined-plane to coordinate with between bearing outer ring 2, and outer seal lip forms axis and radial seal elastic force, has the more reliable advantage that is sealed and matched.And the outer seal lip 61 of outer side seal circle 6 has two sealed lips, adopt the design of double-sealing lip, improve sealability.
The interior sealing lip of described inner seal circle 5 includes sealed lip 51, intermediate seal lip 52 and lower seal lip 53; Upper sealed lip 51, intermediate seal lip 52 and lower seal lip 53 radially distribute, and upper sealed lip 51, intermediate seal lip 52 and lower seal lip 53 lip are towards one end in bearing bore 3; The outer peripheral surface of bearing inner race 1 is provided with U-shaped dustproof groove 11, Spielpassung between upper sealed lip 51 and bearing inner race 1 outer peripheral surface, intermediate seal lip 52 and lower seal lip 53 all with U-shaped dustproof groove 11 axial end 111 interference fit, the first Seal cage 81 is formed between upper sealed lip 51 and intermediate seal lip 52, the second Seal cage 82 is formed, gap-forming the 3rd Seal cage 83 between bottom lower seal lip 53 and U-shaped dustproof groove 11 between intermediate seal lip 52 and lower seal lip 53.Like this after outer side seal circle stops, the impurity entered between outer side seal circle and inner seal circle is less, and the structural design of inner seal circle, upper sealed lip and bearing inner race Spielpassung, ensure that bearing does not contact with bearing inner race in operation process, reduce bearing frictional torque, Bearing inner grease can be stirred in the running simultaneously, prevent grease from leaking outside, intermediate seal lip, lower seal lip and U-shaped dustproof groove respective outer side edges, play well dust-proof, waterproof, the performances such as anti-muddy water, make bearing be applied in dust to fill the air, also good sealing effect can be played in the rugged environment such as muddy water splashing, ensure operational safety and the working life of bearing.
For improving upper sealed lip 51 and bearing inner race 1 coordinates reliably, described bearing inner race 1 is positioned at U-shaped dustproof groove 11 and is provided with stepped slot 12 near bearing bore side, the upper sealed lip 51 of described inner seal circle 5 stretches in stepped slot 12, upper sealed lip 51 and stepped slot 12 wall Spielpassung; Upper sealed lip and stepped slot form the sealed pathway of labyrinth-like, improve sealability.
Claims (6)
1. a doubling sealed bearing, include bearing inner race and bearing outer ring, bearing inner race formation bearing bore mutually nested with bearing outer ring, rolling element is provided with in bearing bore, bearing bore axial port is provided with black box, described black box includes inner seal circle and the outer side seal circle of axially spaced-apart layout, inner seal circle external diameter end is assemblied in the inner side dustproof groove of bearing outer ring, inner seal circle inner-diameter end has interior sealing lip, the interior sealing lip of inner seal circle and bearing inner race outer circle wall are conflicted and are sealed and matched, described outer side seal circle inner-diameter end is assemblied on bearing inner race, outer side seal circle external diameter end has outer seal lip, outer seal lip and bearing outer ring inner peripheral wall are conflicted and are sealed and matched, it is characterized in that: the interior sealing lip of described inner seal circle includes sealed lip, intermediate seal lip and lower seal lip, upper sealed lip, intermediate seal lip and lower seal lip radially distribute, upper sealed lip, intermediate seal lip and lower seal lip lip are towards one end in bearing bore, the outer peripheral surface of bearing inner race is provided with U-shaped dustproof groove, Spielpassung between upper sealed lip and bearing inner race outer peripheral surface, intermediate seal lip and lower seal lip all with U-shaped dustproof groove axial end interference fit, the first Seal cage is formed between upper sealed lip and intermediate seal lip, the second Seal cage is formed between intermediate seal lip and lower seal lip, gap-forming the 3rd Seal cage between bottom lower seal lip and U-shaped dustproof groove.
2. doubling sealed bearing according to claim 1, it is characterized in that: described bearing inner race is positioned at U-shaped dustproof groove and is provided with stepped slot near bearing bore side, the upper sealed lip of described inner seal circle stretches in stepped slot, upper sealed lip and step cell wall Spielpassung.
3. doubling sealed bearing according to claim 1 or 2, it is characterized in that: described bearing outer ring inner peripheral wall is provided with the inclined-plane coordinated with outer seal lip, inclined-plane is low away from bearing bore one end, near high being obliquely installed in bearing bore one end, the outer seal lip of outer side seal circle is conflicted and is sealed and matched on the inclined-plane of bearing outer ring.
4. doubling sealed bearing according to claim 1 or 2, is characterized in that: the inner-diameter end of described outer side seal circle is formed with tubular assembly set portion towards the upset of bearing bore one end, outer side seal circle through tubular assembly set portion interference on bearing inner race.
5. doubling sealed bearing according to claim 3, is characterized in that: the inner-diameter end of described outer side seal circle is formed with tubular assembly set portion towards the upset of bearing bore one end, outer side seal circle through tubular assembly set portion interference on bearing inner race.
6. doubling sealed bearing according to claim 1, is characterized in that: the outer seal lip of described outer side seal circle has two sealed lips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420692581.5U CN204239455U (en) | 2014-11-18 | 2014-11-18 | A kind of doubling sealed bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420692581.5U CN204239455U (en) | 2014-11-18 | 2014-11-18 | A kind of doubling sealed bearing |
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| Publication Number | Publication Date |
|---|---|
| CN204239455U true CN204239455U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420692581.5U Active CN204239455U (en) | 2014-11-18 | 2014-11-18 | A kind of doubling sealed bearing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084199A (en) * | 2017-06-19 | 2017-08-22 | 无锡民联轴承制造有限公司 | Bearing dust-proof sealing structure |
| CN110030278A (en) * | 2019-04-25 | 2019-07-19 | 浙江丰安精密机械有限公司 | A kind of double-layer seal rings deep groove ball bearing |
| CN110886782A (en) * | 2019-12-26 | 2020-03-17 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Sealed dustproof combined bearing sealing structure |
| CN112360882A (en) * | 2020-10-19 | 2021-02-12 | 浙江丰安精密机械有限公司 | Deep groove ball bearing |
-
2014
- 2014-11-18 CN CN201420692581.5U patent/CN204239455U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084199A (en) * | 2017-06-19 | 2017-08-22 | 无锡民联轴承制造有限公司 | Bearing dust-proof sealing structure |
| CN110030278A (en) * | 2019-04-25 | 2019-07-19 | 浙江丰安精密机械有限公司 | A kind of double-layer seal rings deep groove ball bearing |
| CN110886782A (en) * | 2019-12-26 | 2020-03-17 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Sealed dustproof combined bearing sealing structure |
| CN112360882A (en) * | 2020-10-19 | 2021-02-12 | 浙江丰安精密机械有限公司 | Deep groove ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Double-sealed bearing Effective date of registration: 20171221 Granted publication date: 20150401 Pledgee: Agricultural Bank of China branch of Wenzhou economic and Technological Development Zone, Limited by Share Ltd Pledgor: Wenzhou C&U Automobile Bearing Co., Ltd. Registration number: 2017330000316 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201221 Granted publication date: 20150401 Pledgee: Agricultural Bank of China branch of Wenzhou economic and Technological Development Zone, Limited by Share Ltd. Pledgor: WENZHOU C&U AUTO BEARING Co.,Ltd. Registration number: 2017330000316 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |