CN102996651A - A three-lip sealed bearing with a protective retaining ring - Google Patents
A three-lip sealed bearing with a protective retaining ring Download PDFInfo
- Publication number
- CN102996651A CN102996651A CN2012105330297A CN201210533029A CN102996651A CN 102996651 A CN102996651 A CN 102996651A CN 2012105330297 A CN2012105330297 A CN 2012105330297A CN 201210533029 A CN201210533029 A CN 201210533029A CN 102996651 A CN102996651 A CN 102996651A
- Authority
- CN
- China
- Prior art keywords
- ring
- lip
- protective retaining
- retaining ring
- inner ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 title claims abstract 15
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000000428 dust Substances 0.000 claims description 22
- 230000000694 effects Effects 0.000 abstract description 10
- 239000002245 particle Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a take three lip seal bearing of protection retaining ring, this bearing include inner circle, outer lane and locate the ball between inner circle and the outer lane, the inner circle stretches out from the left and right sides of outer lane along the axial, and the riveting groove has been seted up respectively to the internal surface of the outer lane axial left and right sides, and the riveting inslot has set firmly the shield, is equipped with the three lip seals that offset with the inner circle surface seal on the shield, its characterized in that: the outer surface of the inner ring is fixedly provided with a protective check ring opposite to the dustproof cover at the position close to the left side and the right side of the outer ring respectively, a small amount of gaps are reserved between the protective check ring and the left side surface or the right side surface of the outer ring, and the protective check ring, the dustproof cover and the three-lip sealing piece form a labyrinth type combined sealing structure together. The invention can effectively protect the bearing sealing element, prolong the sealing service life and enhance the sealing and dustproof effects.
Description
Technical field:
The present invention relates to a kind of three lip seal bearings with the protection back-up ring.
Background technique:
Some machinery such as mine, oil, lumbering machinery etc., its working environment is very abominable, and its workpiece usually need to turn round under the operating mode that is full of mire, dust, rubble, and the sealability of institute's configuration bearing directly affects quality and the life-span of matched host machine.This type of is used operating mode and more adopts the three lip seal airframe bearings of being with better dust-proof effect.Existing bearing with three lip seal structures has preferably waterproof and dustproof effect.But the direct sputter of extraneous particle media such as the meetings such as the grains of sand, rubble, impact dust cover and accumulate in three lip seal inner lip places exposed inner lip is caused wearing and tearing, and affect its sealing and dustproof effect.
Summary of the invention:
The object of the present invention is to provide a kind of three lip seal bearings with the protection back-up ring, it can effectively protect bearing seal, improves sealing life, strengthens sealing, dust-proof effect.
A kind of three lip seal bearings with the protection back-up ring, this bearing comprises inner ring, the outer ring and be located at inner ring and the outer ring between ball, described inner ring stretches out from the left and right sides of outer ring vertically, the internal surface of the axial left and right sides, outer ring offers respectively the riveted groove, be installed with dust cover in the riveted groove, dust cover is provided with three lip seal that offset with the sealing of inner ring outer surface, it is characterized in that: the outer surface of described inner ring is installed with respectively the protection back-up ring relative with described dust cover in the position near the left and right sides, outer ring, leave a small amount of gap between the left surface of this protection back-up ring and described outer ring or the right flank, described protection back-up ring, dust cover, and three lip seal jointly form labyrinth type combined seal structure.
Three lip seal bearings of the present invention's band protection back-up ring; the setting of its protection back-up ring; jointly form labyrinth type combined seal structure with dust cover and three lip seal; extraneous particle media is difficult to enter; can effectively protect three lip seal of bearing; improve sealing life, strengthen sealing, dust-proof effect.Especially when the protection back-up ring rotated with inner ring, centrifugal force can be thrown extraneous particle media away, prevents that extraneous particle media from entering and being deposited on described three lip seal, can improve sealing, dust-proof effect greatly.
The present invention can improve by following scheme:
Protection back-up ring described above is by little gradually large horn-like, and it is than the outer surface interference fit of small end and described inner ring, and its larger end is relative with the side of described outer ring.Simple in structure, sealing, good dustproof effect.
The external diameter of the larger end of protection back-up ring described above is slightly larger than the mouth diameters of described riveted groove.Sealing, good dustproof effect.
Dust cover described above is equally by little gradually large horn-like, it leaves certain interval than small end and inner ring outer surface, its larger end is fixedly connected with the riveted groove, and described three lip seal are located at the inwall of horn-like dust cover and radially inside parallel three sealing lips that offset with the sealing of inner ring outer surface that are provided with side by side.Sealing, good dustproof effect.
The outer surface of outer ring described above is sphere or cylndrical surface.Simple in structure.
Also be provided with Cock screw on the inner ring described above.Simple in structure, be connected and fixed conveniently with rotating shaft.
Description of drawings:
Fig. 1 is structure sectional view of the present invention.
Fig. 2 is the A section enlarged view of Fig. 1.
Embodiment:
Such as Fig. 1, shown in 2, a kind of three lip seal bearings with the protection back-up ring, this bearing comprises inner ring 1, outer ring 2, be located at the ball 3 between inner ring and the outer ring, and with so that the circumferential retainer spaced apart of ball, described inner ring 1 vertically from the outer ring 2 the left and right sides stretch out, the internal surface of the 2 axial left and right sides, outer ring offers respectively the riveted groove, be installed with dust cover 21 in the riveted groove, dust cover 21 is provided with three lip seal 22 that offset with the sealing of inner ring 1 outer surface, the outer surface of described inner ring 1 is in be installed with respectively the protection back-up ring 11 relative with described dust cover 21 near the position of 2 left and right sides, outer ring, leave a small amount of gap between the left surface of this protection back-up ring 11 and described outer ring 2 or the right flank, described protection back-up ring 11, dust cover 21, and three lip seal, the 22 common labyrinth type combined seal structures that form.When protection back-up ring 11 rotated with inner ring 1, centrifugal force can be thrown extraneous particle media away, prevents that extraneous particle media is deposited on described three lip seal 22.
Particularly, described protection back-up ring 11 is by little gradually large horn-like, and it is than the outer surface interference fit of small end and described inner ring 1, and its larger end is relative with the side of described outer ring 2, and the external diameter of larger end is slightly larger than the mouth diameters of described riveted groove.
Described dust cover 21 is equally by little gradually large horn-like, it leaves certain interval than small end and inner ring 1 outer surface, its larger end is fixedly connected with the riveted groove, and described three lip seal 22 are located at the inwall of horn-like dust cover 21 and radially inside parallel three sealing lips 220 that offset with the sealing of inner ring 1 outer surface that are provided with side by side.Leave certain distance between described protection back-up ring 11 and the side of dust cover 21 than small end.
In addition, the outer surface of described outer ring 2 is sphere or cylndrical surface, also is provided with Cock screw 12 on the described inner ring 1.
The above is preferred embodiment of the present invention only, is not to limit scope of the invention process, and all equal variation and modifications of doing according to claim of the present invention all fall into the scope that patent of the present invention contains.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105330297A CN102996651A (en) | 2012-12-10 | 2012-12-10 | A three-lip sealed bearing with a protective retaining ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105330297A CN102996651A (en) | 2012-12-10 | 2012-12-10 | A three-lip sealed bearing with a protective retaining ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996651A true CN102996651A (en) | 2013-03-27 |
Family
ID=47925621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105330297A Pending CN102996651A (en) | 2012-12-10 | 2012-12-10 | A three-lip sealed bearing with a protective retaining ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996651A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317733A (en) * | 2014-07-02 | 2016-02-10 | 重庆美的通用制冷设备有限公司 | Rotary sealing device and compressor with same |
| CN114215846A (en) * | 2021-12-24 | 2022-03-22 | 中山市盈科轴承制造有限公司 | Bearing retainer ring riveting structure |
| CN114215845A (en) * | 2021-12-24 | 2022-03-22 | 中山市盈科轴承制造有限公司 | A bearing seal structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5242229A (en) * | 1992-11-25 | 1993-09-07 | The Torrington Company | Sealing structure for standardized bearing ring |
| JP2005163892A (en) * | 2003-12-02 | 2005-06-23 | Koyo Seiko Co Ltd | Sealed rolling bearing |
| CN201258920Y (en) * | 2008-10-28 | 2009-06-17 | 东莞市Tr轴承有限公司 | Bearing sealing structure with protective cover |
| JP2009197969A (en) * | 2008-02-25 | 2009-09-03 | Jtekt Corp | Sealing device for rolling bearing |
| CN201382077Y (en) * | 2009-04-15 | 2010-01-13 | 陆连运 | Insert bearing unit with tooth-type sealing cover |
| CN102588446A (en) * | 2011-01-05 | 2012-07-18 | 查尔斯·温菲尔德·斯科特 | Triple-lip seals for bearings and bearings containing such seals |
| CN203067558U (en) * | 2012-12-10 | 2013-07-17 | 中山市盈科轴承制造有限公司 | A three-lip sealed bearing with a protective retaining ring |
-
2012
- 2012-12-10 CN CN2012105330297A patent/CN102996651A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5242229A (en) * | 1992-11-25 | 1993-09-07 | The Torrington Company | Sealing structure for standardized bearing ring |
| JP2005163892A (en) * | 2003-12-02 | 2005-06-23 | Koyo Seiko Co Ltd | Sealed rolling bearing |
| JP2009197969A (en) * | 2008-02-25 | 2009-09-03 | Jtekt Corp | Sealing device for rolling bearing |
| CN201258920Y (en) * | 2008-10-28 | 2009-06-17 | 东莞市Tr轴承有限公司 | Bearing sealing structure with protective cover |
| CN201382077Y (en) * | 2009-04-15 | 2010-01-13 | 陆连运 | Insert bearing unit with tooth-type sealing cover |
| CN102588446A (en) * | 2011-01-05 | 2012-07-18 | 查尔斯·温菲尔德·斯科特 | Triple-lip seals for bearings and bearings containing such seals |
| CN203067558U (en) * | 2012-12-10 | 2013-07-17 | 中山市盈科轴承制造有限公司 | A three-lip sealed bearing with a protective retaining ring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317733A (en) * | 2014-07-02 | 2016-02-10 | 重庆美的通用制冷设备有限公司 | Rotary sealing device and compressor with same |
| CN114215846A (en) * | 2021-12-24 | 2022-03-22 | 中山市盈科轴承制造有限公司 | Bearing retainer ring riveting structure |
| CN114215845A (en) * | 2021-12-24 | 2022-03-22 | 中山市盈科轴承制造有限公司 | A bearing seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20130327 |