CN103629246A - Double-sealing bearing - Google Patents
Double-sealing bearing Download PDFInfo
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- CN103629246A CN103629246A CN201310447706.8A CN201310447706A CN103629246A CN 103629246 A CN103629246 A CN 103629246A CN 201310447706 A CN201310447706 A CN 201310447706A CN 103629246 A CN103629246 A CN 103629246A
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- ring
- seal ring
- ring portion
- inner ring
- outer ring
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Abstract
The invention relates to a bearing. A double-sealing bearing comprises an inner ring, an outer ring sleeving the inner ring and a rolling member positioned between the inner ring and the outer ring, wherein the outer ring is in sealed fixed connection with an outer ring part sealing ring; the inner circumferential surface of the outer ring part sealing ring is in sealed butt joint with the inner ring; the inner ring is in sealed fixed connection with an inner ring part sealing ring; the outer circumferential surface of the inner ring part sealing ring is in sealed butt joint with the outer ring; the outer ring part sealing ring and the inner ring part sealing ring are positioned on the same side of the rolling member. By adopting the double-sealing bearing provided by the invention, the phenomenon of poor sealing does not occur often, and the sealing effect does not drop quickly in the case of abrasion of a movable sealing surface, thereby solving the problems of the existing bearing that the phenomenon of poor sealing occurs often and the sealing effect drops quickly in the case of abrasion of a movable sealing surface of the sealing ring.
Description
Technical field
The present invention relates to bearing, relate in particular to a kind of double sealed bearing.
Background technique
Bearing is in mechanical transmission course, to work the parts of fixing and reducing load friction factor, the mechanical load friction factor in order to reduction equipment in transmission process.In China Patent No., be 2009100504801, notice of authorization day be July 4 in 2012 day, be called a kind of bearing that is provided with seal ring of open example in the patent document of " a kind of full type roller bearing ".The basic structure of bearing comprises inner ring, is enclosed within outer ring and the roll piece between inner ring and outer ring on inner ring as disclosed in this patent document.In order to prevent that foreign matter from entering the place, roll piece place between Internal and external cycle and preventing that the lubricant oil in bearing is excessive, can arrange seal ring between Internal and external cycle.The set-up mode of existing seal ring is in this patent document, seal ring is set between Internal and external cycle, the inner and outer circumferential surfaces of seal ring is connected to together with Internal and external cycle sealing respectively, and this of seal ring kind of setting has the following disadvantages: sealing easily produces poor sealing separately; Once sealing effect can fast-descending after the movable sealing face of seal ring (being the inner and outer circumferential surfaces of seal ring in documents) produces wearing and tearing.
Summary of the invention
The invention provides and be a kind ofly not easy to produce poor sealing phenomenon and movable sealing face and produce the double sealed bearing that sealing effect after wearing and tearing can fast-descending, once solve movable sealing face that existing bearing easily produces poor sealing phenomenon and seal ring, produce the problem that sealing effect after wearing and tearing can fast-descending.
Above technical problem solves by following technical proposal: a kind of double sealed bearing, comprise inner ring, be set in outer ring and the roll piece between inner ring and outer ring on inner ring, the sealing of described outer ring is connected with outer ring portion seal ring, the inner peripheral surface sealing of described outer ring portion seal ring is connected to described inner ring, described inner ring sealing is connected with inner ring portion seal ring, the outer circumferential face sealing of described inner ring portion seal ring is connected to described outer ring, and described outer ring portion's seal ring and inner ring portion seal ring are positioned at the same side of described roll piece.Because a side face of seal ring is that the affixed connection of sealing, another side face are sealing butt, therefore in using process, only can on the side face of sealing butt, produce wearing and tearing and occur poor sealing phenomenon, yet seal ring has designed twice, the side face of two seals ring sealing butt is contrary, therefore after making the movable sealing face of seal ring produce wearing and tearing, put-through channel can be do not produced, thereby sealing effect fast-descending can be do not caused even if play not only to improve sealing effect but also produce movable sealing surface wear yet.
As preferably, the outer circumferential face of described inner ring portion seal ring is provided with sealing lip in inner ring portion seal ring outer seal lip and inner ring portion seal ring, the radial outer end of described inner ring portion seal ring outer seal lip axially tilts to the direction away from described roll piece along inner ring, the radial outer end of the interior sealing lip of described inner ring portion's seal ring axially tilts to the direction at described Sealing place along inner ring, in described inner ring portion's seal ring outer seal lip and inner ring portion seal ring, between sealing lip, forms inner ring portion seal ring oil storage tank.In the time of can reducing the seal ring use of inner ring portion, with the wearing and tearing that produce between outer ring, play the effect increasing the service life.When foreign matter enters people's bearing inside through inner ring portion seal ring vertically, can increase inner ring portion seal ring outer seal lip and be connected to the power on outer ring, thereby improve sealing effect, make foreign matter be not easy to enter; When the grease of bearing inside flows out bearing inside through inner ring portion seal ring vertically, can increase sealing lip in inner ring portion seal ring and be connected to the power on outer ring, thereby improve sealing effect, make oil be not easy to flow out.The formation of oil storage tank, can oil storage and reduce friction between inner ring portion seal ring and outer ring to delay friction, thereby play the effect increasing the service life, moreover in the process of bearing rotation, oil in oil storage tank can produce centrifugal action and play the effect of liquid sealing, thereby improves the dynamic seal (packing) effect of bearing.
As preferably, described outer ring portion seal ring is between described inner ring portion's seal ring and roll piece.During due to sealing, mainly need to prevent that foreign matter from entering bearing, this design makes only need on inner ring portion seal ring, adopt above-mentioned optimizing structure can reach good sealing effect.
As preferably, the inner peripheral surface of described outer ring portion seal ring is provided with sealing lip in outer ring portion seal ring outer seal lip and outer ring portion seal ring, the radial inner end of described outer ring portion seal ring outer seal lip axially tilts to the direction away from described roll piece along outer ring, the radial inner end of the interior sealing lip of described outer ring portion's seal ring axially to the direction inclination at described roll piece place, sealing lip between forms outer ring portion seal ring oil storage tank in described outer ring portion's seal ring outer seal lip and outer ring portion seal ring along outer ring.Can improve the sealing effect between outer ring portion seal ring and inner ring.
As preferably, described outer ring portion's seal ring and described outer ring elastic packing are connected together, described outer ring portion seal ring along outer ring axially the one end away from described roll piece be provided with outer ring portion seal ring handle, described inner ring portion's seal ring and described inner ring elastic packing are connected together, and described inner ring portion seal ring is axially provided with inner ring portion seal ring handle away from one end of described roll piece along inner ring.Convenience while changing seal ring is good.
As preferably, it is all loop configuration that described outer ring portion's seal ring handle and inner ring portion seal ring are shaken hands.Narrow because of the space between inner ring and outer ring, be designed to annular and be convenient to connect with handle by thering is instrument or the finger of eave tile, convenience during use is good.
As preferably, described inner ring, inner ring portion seal ring, outer ring and outer ring portion seal ring surround vacuum every the chamber of making an uproar.Due to the setting of vacuum every the chamber of making an uproar, the noise producing when using process middle (center) bearing roll piece is rolled is not easy unofficial biography, has reduced the noise in bearing working process.Between two seals ring, support one another and produce every the effect of making an uproar, making seal ring not only play seal action and also play every the effect of making an uproar.
As preferably, described vacuum is provided with exhaust passage every the chamber of making an uproar, and described exhaust passage is provided with towards described vacuum every the outside one-way valve of opening in the chamber of making an uproar, and described exhaust passage comprises channel body and suction port.Convenient when making an uproar the inner formation in chamber vacuum in vacuum.
As preferably, described suction port be positioned at described vacuum every the radial outer end in the chamber of making an uproar and towards vacuum the axis every the chamber of making an uproar.In bearing rotation process especially in high speed rotating process and bearing inside temperature rise after (working procedure middle (center) bearing temperature can rise, bearing while using in hot environment the temperature of inside might as well rise more), the gas of vacuum in the chamber of making an uproar can expand and discharge, make vacuum thinner every the air in the chamber of making an uproar, thereby play dynamic raising every the effect of the effect of making an uproar, and the rarefaction of air degree of vacuum in the chamber of making an uproar can remain on historical low value.
As preferably, described exhaust passage body is arranged in the one far away of roll piece described in described outer ring portion's seal ring and inner ring portion the two middle distance of seal ring.Convenience while making sealing channel is good.
The present invention has following advantage: by the same side at roll piece, two seals ring is set and two seals ring is affixed with inner ring and outer ring respectively, thereby can improves sealing effect, especially the bad fast-descending of sealing effect after movable sealing face produces wearing and tearing; Seal ring seals by side face butt, convenient while making Internal and external cycle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is that embodiment one has produced the schematic diagram while wearing and tearing.
Fig. 3 is the structural representation of the embodiment of the present invention two.
Fig. 4 is the structural representation of the embodiment of the present invention three.
Fig. 5 is the structural representation of the embodiment of the present invention four.
Fig. 6 is the local enlarged diagram at the A place of Fig. 5.
In figure: inner ring 1, outer ring 2, roll piece 3, inner ring portion seal ring 4, inner ring portion seal ring outer seal lip 41, sealing lip 42 in inner ring portion seal ring, inner ring portion seal ring oil storage tank 43, inner ring portion seal ring handle 44, projection 45, outer ring portion seal ring 5, outer ring portion seal ring outer seal lip 51, sealing lip 52 in outer ring portion seal ring, outer ring portion seal ring oil storage tank 53, outer ring portion seal ring handle 54, the first wearing and tearing gap 6, the second wearing and tearing gap 7, vacuum is every the chamber 8 of making an uproar, exhaust passage 81, channel body 811, suction port 812, one-way valve 82, vacuum is every the axis L in the chamber of making an uproar.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.
Embodiment one, and referring to Fig. 1, a kind of double sealed bearing, comprises inner ring 1, is set in outer ring 2 and the roll piece between inner ring and outer ring 3 on inner ring.Roll piece 3 is spin, needle roller and roller etc., the particular type that the optical axis holds and determining.
Outer ring 2 is provided with outer ring portion seal ring 5.Outer ring portion seal ring 5 is fixed together by mode and outer ring 2 sealings of bonding.The inner peripheral surface sealing of outer ring portion seal ring 5 is connected on the outer circumferential face of inner ring 1.
Outer ring portion seal ring 5 and inner ring portion seal ring 4 are positioned at the same side of roll piece 3.Inner ring portion seal ring 4 is between outer ring portion seal ring 5 and roll piece 3.
In bearing rotation process, between inner ring portion seal ring 4 and inner ring 1, keep relative position constant, between inner ring portion seal ring 4 and outer ring 2, relatively rotate.Between outer ring portion seal ring 5 and inner ring 1, relatively rotate, between outer ring portion seal ring 5 and outer ring 2, keep relative position constant.
Referring to Fig. 2, this design makes to produce wearing and tearing and form wearing and tearing gap when all movable sealing faces, while being movable sealing face (being outer circumferential face) the wearing and tearing generation first wearing and tearing gap 6 of inner ring portion seal ring 4 and movable sealing face (being inner peripheral surface) the wearing and tearing generation second wearing and tearing gap 7 of outer ring portion seal ring 5, the two is the radially two ends of the passage between Internal and external cycle for the first wearing and tearing gap 6 and the second wearing and tearing gap 7, also be to exist radial distance poor between the wearing and tearing gap on two seals ring, thereby make seriousness that the upside of bearing and outside produce poor sealing than existing separately or the good sealing effect of two pass, when especially bearing inside is lubricated by lubricating grease.Note: the sealing of bearing does not need to reach hermetic seal, as long as realize liquid sealing, convection cell seals.
Embodiment two, referring to Fig. 3, are: inner ring 1, inner ring portion seal ring 4, outer ring 2 and outer ring portion seal ring 5 four surround vacuum every the chamber 8 of making an uproar with embodiment one difference.Vacuum is provided with exhaust passage 81 every the chamber 8 of making an uproar.Exhaust passage 81 comprises channel body 811 and suction port 812.Channel body 811 is arranged at outer ring portion seal ring 5.Channel body 811 is provided with one-way valve 82.One-way valve 82 towards vacuum every the chamber 8 of making an uproar is outside opens (can only by vacuum the gas in the chamber of making an uproar discharge).
The forming process of the initial vacuum of vacuum in the chamber 8 of making an uproar is: first the near one (being inner ring portion seal ring 4 in the present embodiment) of roll piece described in outer ring portion seal ring and the two middle distance of inner ring blow-by ring is connected between inner ring and outer ring, then the one (being outer ring portion seal ring 5 in the present embodiment) far away of roll piece described in outer ring portion seal ring and the two middle distance of inner ring blow-by ring is moved and is assembled between inner ring 1 and outer ring 2, again towards drawing outer ring portion seal ring 5 away from the direction of roll piece 3 towards roll piece 3, thereby in the chamber 8 of making an uproar, form vacuum in vacuum.
Embodiment three, and referring to Fig. 4, a kind of double sealed bearing, comprises inner ring 1, is set in outer ring 2 and the roll piece between inner ring and outer ring 3 on inner ring.Roll piece 3 is spin, needle roller and roller etc., the particular type that the optical axis holds and determining.
Outer ring 2 is provided with outer ring portion seal ring 5.Outer ring portion seal ring 5 is fixed together by mode and outer ring 2 sealings of flexible clamping.The inner peripheral surface of outer ring portion seal ring 5 is provided with sealing lip 52 in outer ring portion seal ring outer seal lip 51 and outer ring portion seal ring.The radial inner end of outer ring portion seal ring outer seal lip 51 axially outwards tilts away from the direction of roll piece along outer ring.In outer ring portion seal ring, the radial inner end of sealing lip 52 is inwardly axially the direction inclination at roll piece place along outer ring.In outer ring portion seal ring outer seal lip 51 and outer ring portion seal ring, between sealing lip 52, form outer ring portion seal ring oil storage tank 53.In the radial inner end of outer ring portion seal ring outer seal lip 51 and outer ring portion seal ring, the radial inner end of sealing lip 52 all seals on the outer circumferential face that is connected to inner ring 1.The axial outer end of outer ring portion seal ring 5 is provided with outer ring portion seal ring handle 54 away from one end of roll piece 3.Outer ring portion seal ring handle 54 is loop configuration.
Outer ring portion seal ring 5 and inner ring portion seal ring 4 are positioned at the same side of roll piece 3.Outer ring portion seal ring 5 is between inner ring portion seal ring 4 and roll piece 3.
Embodiment four, referring to Fig. 5, are: inner ring 1, inner ring portion seal ring 4, outer ring 2 and outer ring portion seal ring 5 four surround vacuum every the chamber 8 of making an uproar with embodiment three difference.
Referring to Fig. 6.Vacuum is provided with exhaust passage 81 every the chamber 8 of making an uproar.Exhaust passage 81 comprises channel body 811 and suction port 812.Channel body 811 is arranged at inner ring portion seal ring 4.Channel body 811 is provided with one-way valve 82.One-way valve 82 is opened every 8 outsides, chamber of making an uproar towards vacuum.The axial inner ends of inner ring portion seal ring 4 is provided with and extends to the projection 45 of vacuum in the chamber 8 of making an uproar.Suction port 812 is arranged on projection 45.Suction port 812 towards vacuum every the axis L(in the chamber of making an uproar referring to Fig. 5) be also the axis of bearing.Suction port 812 is positioned at vacuum every the radial outer end in the chamber 8 of making an uproar.
Referring to Fig. 5, the forming process of the initial vacuum of vacuum in the chamber 8 of making an uproar is: first the near one (being outer ring portion seal ring 5 in the present embodiment) of roll piece described in outer ring portion seal ring and the two middle distance of inner ring blow-by ring is connected between inner ring and outer ring, then the one (being inner ring portion seal ring 4 in the present embodiment) far away of roll piece described in outer ring portion seal ring and the two middle distance of inner ring blow-by ring is moved and is assembled between inner ring 1 and outer ring 2 towards roll piece 3, again towards drawing inner ring portion seal ring 4 away from the direction of roll piece 3, thereby in the chamber 8 of making an uproar, form vacuum in vacuum.
Claims (10)
1. a double sealed bearing, comprise inner ring, be set in outer ring and the roll piece between inner ring and outer ring on inner ring, it is characterized in that, the sealing of described outer ring is connected with outer ring portion seal ring, the inner peripheral surface sealing of described outer ring portion seal ring is connected to described inner ring, the sealing of described inner ring is connected with inner ring portion seal ring, and the outer circumferential face sealing of described inner ring portion seal ring is connected to described outer ring, and described outer ring portion's seal ring and inner ring portion seal ring are positioned at the same side of described roll piece.
2. double sealed bearing according to claim 1, it is characterized in that, the outer circumferential face of described inner ring portion seal ring is provided with sealing lip in inner ring portion seal ring outer seal lip and inner ring portion seal ring, the radial outer end of described inner ring portion seal ring outer seal lip axially tilts to the direction away from described roll piece along inner ring, the radial outer end of the interior sealing lip of described inner ring portion's seal ring axially tilts to the direction at described Sealing place along inner ring, in described inner ring portion's seal ring outer seal lip and inner ring portion seal ring, between sealing lip, forms inner ring portion seal ring oil storage tank.
3. double sealed bearing according to claim 2, is characterized in that, described outer ring portion seal ring is between described inner ring portion's seal ring and roll piece.
4. according to the double sealed bearing described in claim 1 or 2 or 3, it is characterized in that, the inner peripheral surface of described outer ring portion seal ring is provided with sealing lip in outer ring portion seal ring outer seal lip and outer ring portion seal ring, the radial inner end of described outer ring portion seal ring outer seal lip axially tilts to the direction away from described roll piece along outer ring, the radial inner end of the interior sealing lip of described outer ring portion's seal ring axially to the direction inclination at described roll piece place, sealing lip between forms outer ring portion seal ring oil storage tank in described outer ring portion's seal ring outer seal lip and outer ring portion seal ring along outer ring.
5. according to the double sealed bearing described in claim 1 or 2 or 3, it is characterized in that, described outer ring portion's seal ring and described outer ring elastic packing are connected together, described outer ring portion seal ring along outer ring axially the one end away from described roll piece be provided with outer ring portion seal ring handle, described inner ring portion's seal ring and described inner ring elastic packing are connected together, and described inner ring portion seal ring is axially provided with inner ring portion seal ring handle away from one end of described roll piece along inner ring.
6. double sealed bearing according to claim 5, is characterized in that, described outer ring portion's seal ring handle and inner ring portion seal ring handle are all loop configuration.
7. according to the double sealed bearing described in claim 1 or 2 or 3, it is characterized in that, described inner ring, inner ring portion seal ring, outer ring and outer ring portion seal ring surround vacuum every the chamber of making an uproar.
8. double sealed bearing according to claim 7, is characterized in that, described vacuum is provided with exhaust passage every the chamber of making an uproar, and described exhaust passage is provided with the one-way valve every the outside unlatching in chamber of making an uproar towards described vacuum, and described exhaust passage comprises channel body and suction port.
9. double sealed bearing according to claim 8, is characterized in that, described suction port be positioned at described vacuum every the radial outer end in the chamber of making an uproar and towards vacuum the axis every the chamber of making an uproar.
10. double sealed bearing according to claim 8, is characterized in that, described exhaust passage body is arranged in the one far away of roll piece described in described outer ring portion's seal ring and inner ring portion the two middle distance of seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447706.8A CN103629246B (en) | 2013-09-27 | 2013-09-27 | Double sealed bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447706.8A CN103629246B (en) | 2013-09-27 | 2013-09-27 | Double sealed bearing |
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| Publication Number | Publication Date |
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| CN103629246A true CN103629246A (en) | 2014-03-12 |
| CN103629246B CN103629246B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310447706.8A Active CN103629246B (en) | 2013-09-27 | 2013-09-27 | Double sealed bearing |
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| Country | Link |
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| CN (1) | CN103629246B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725610A (en) * | 2017-10-12 | 2018-02-23 | 洛阳轴承研究所有限公司 | A kind of sealing ring and the bearing using the sealing ring |
| CN113483018A (en) * | 2021-08-17 | 2021-10-08 | 洛阳轴承研究所有限公司 | Joint bearing and shield machine using joint bearing |
| CN116123211A (en) * | 2023-02-22 | 2023-05-16 | 南京林业大学 | High-speed rolling bearing with self-adaptive sealing and reinforced cooling structure |
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| JP2008002487A (en) * | 2006-06-20 | 2008-01-10 | Nsk Ltd | Bearing with seal |
| JP2009197969A (en) * | 2008-02-25 | 2009-09-03 | Jtekt Corp | Sealing device for rolling bearing |
| CN201575047U (en) * | 2009-11-02 | 2010-09-08 | 浙江八环轴承有限公司 | Double-sealed bearing |
| CN201991930U (en) * | 2011-03-26 | 2011-09-28 | 芜湖人本轴承有限公司 | Transmission shaft support bearing |
| CN202215610U (en) * | 2011-08-26 | 2012-05-09 | 人本集团有限公司 | Novel deep groove ball bearing for guiding steel rolling wire |
| JP5016123B2 (en) * | 2011-05-06 | 2012-09-05 | Ｎｔｎ株式会社 | Rolling bearing |
| CN203570852U (en) * | 2013-09-27 | 2014-04-30 | 浙江蓝翔轴承有限公司 | Double-channel seal type bearing |
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2013
- 2013-09-27 CN CN201310447706.8A patent/CN103629246B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008002487A (en) * | 2006-06-20 | 2008-01-10 | Nsk Ltd | Bearing with seal |
| JP2009197969A (en) * | 2008-02-25 | 2009-09-03 | Jtekt Corp | Sealing device for rolling bearing |
| CN201575047U (en) * | 2009-11-02 | 2010-09-08 | 浙江八环轴承有限公司 | Double-sealed bearing |
| CN201991930U (en) * | 2011-03-26 | 2011-09-28 | 芜湖人本轴承有限公司 | Transmission shaft support bearing |
| JP5016123B2 (en) * | 2011-05-06 | 2012-09-05 | Ｎｔｎ株式会社 | Rolling bearing |
| CN202215610U (en) * | 2011-08-26 | 2012-05-09 | 人本集团有限公司 | Novel deep groove ball bearing for guiding steel rolling wire |
| CN203570852U (en) * | 2013-09-27 | 2014-04-30 | 浙江蓝翔轴承有限公司 | Double-channel seal type bearing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725610A (en) * | 2017-10-12 | 2018-02-23 | 洛阳轴承研究所有限公司 | A kind of sealing ring and the bearing using the sealing ring |
| CN107725610B (en) * | 2017-10-12 | 2019-05-31 | 洛阳轴承研究所有限公司 | A kind of sealing ring and the bearing using the sealing ring |
| CN113483018A (en) * | 2021-08-17 | 2021-10-08 | 洛阳轴承研究所有限公司 | Joint bearing and shield machine using joint bearing |
| CN116123211A (en) * | 2023-02-22 | 2023-05-16 | 南京林业大学 | High-speed rolling bearing with self-adaptive sealing and reinforced cooling structure |
| CN116123211B (en) * | 2023-02-22 | 2023-08-01 | 南京林业大学 | High-speed rolling bearing with self-adaptive sealing and reinforced cooling structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103629246B (en) | 2016-01-20 |
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