CN203822868U - Non-contact sealing device for deep-groove ball bearing - Google Patents
Non-contact sealing device for deep-groove ball bearing Download PDFInfo
- Publication number
- CN203822868U CN203822868U CN201420243680.5U CN201420243680U CN203822868U CN 203822868 U CN203822868 U CN 203822868U CN 201420243680 U CN201420243680 U CN 201420243680U CN 203822868 U CN203822868 U CN 203822868U
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- CN
- China
- Prior art keywords
- seal
- ring
- seal ring
- lip
- ball bearing
- 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.)
- Expired - Fee Related
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a non-contact sealing device for a deep-groove ball bearing. The non-contact sealing device comprises an outer ring, a first sealing ring, a first sealing ring framework, a second sealing ring, a second sealing ring framework and an inner ring, wherein the first sealing ring and the second sealing ring are arranged in parallel and not contact with each other; the first sealing ring is in interference fit with the outer ring and in transition fit with the inner ring; the second sealing ring is in transition fit with the outer ring and in interference fit with the inner ring; the first sealing ring framework is located in the first sealing ring; and the second sealing ring framework is located in the second sealing ring. According to the sealing device, the function of preventing moisture, foreign matter particulates, mixtures of the moisture and the foreign matter particulates and like from entering the bearing can be substantially improved, so that the durability of the bearing is improved.
Description
Technical field
The utility model relates to a kind of seal ring, particularly relates to a kind of noncontact seal device for deep groove ball bearing.
Background technique
It is the rolling contact support rotating part relying between primary component for rolling bearing, and it is little that rolling bearing has surface friction drag, and power consumpiton is few, starts the advantages such as easy.The earlier period damage of bearing, often do not caused by bearing material problem, but because dirt etc. immerses bearing inside, cause that the some type of channel surface peels off: foreign material immersion → raceway groove impression → stress concentrates → produce scale off → bearing failure or water to immerse the peel off → bearing failure of bearing → lubrication failure → generation pit.
Single design of Sealing Structure is by two interference fit of seal ring and outer ring seal groove, inner ring external diameter, realizes the function of fixed seal ring and leakproof fat.Owing to first will ensureing that seal ring is fixed on outer ring and with its rotation, therefore, seal ring is very crucial with coordinating of inner ring external diameter, magnitude of interference can not too greatly can not be too little.As seal ring and inner ring external diameter matching allowance exceed and outer ring seal groove matching allowance, may rotate with respect to outer ring i.e. detachable cap, or detachable cap but serious with bearing inner race frictional heat not.It is poor that magnitude of interference hour may leak again fat sealing effect very much.How meeting this two conflicting requirements, is a difficult problem of seal ring design.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of noncontact seal device for deep groove ball bearing, can significantly improve and prevent that moisture, foreign matter particulate and composition thereof etc. from immersing the function of bearing inside, thereby improve the durability of bearing.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of noncontact seal device for deep groove ball bearing, it is characterized in that, it comprises outer ring, the first seal ring, the first seal ring skeleton, the second seal ring, the second seal ring skeleton, inner ring, the first seal ring contacts side by side and not with the second seal ring, the first seal ring and outer ring interference fit and with inner ring transition fit, the second seal ring and outer ring transition fit and with inner ring interference fit, the first seal ring skeleton is positioned at the first seal ring, the second seal ring skeleton is positioned at the second seal ring.
Preferably, described the first seal ring and the second seal ring all comprise main lip, Steel Skeleton, the straight lip of auxiliary seal, the oblique lip of auxiliary seal, and the straight lip of auxiliary seal and the oblique lip of auxiliary seal are positioned at main lip both sides, and Steel Skeleton is connected with main lip.
Preferably, described main lip is relative with at the bottom of trapezoidal seal groove on inner ring two ribs and do not contact.
Preferably, the age of a draught animal in the trapezoidal seal groove of the straight lip of described auxiliary seal and inner ring outside is relative and do not contact.
Preferably, the rib of the trapezoidal seal groove of the oblique lip of described auxiliary seal and inner ring inner side is relative and do not contact.
Positive progressive effect of the present utility model is: the utility model can significantly improve the function of immersion bearing inside such as preventing moisture, foreign matter particulate and composition thereof, thereby improves the durability of bearing.Non-contacting sealing structure does not almost have seal friction, and operation friction is little, and wearing and tearing are few, and temperature rise is little, and limit speed is high, extends the working life of bearing.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model for the noncontact seal device of deep groove ball bearing.
Fig. 2 is the structural representation of seal ring in the utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As depicted in figs. 1 and 2, for the noncontact seal device of deep groove ball bearing, it comprises outer ring 1, the first seal ring 2, the first seal ring skeleton 3, the second seal ring 4, the second seal ring skeleton 5, inner ring 6 to the utility model, the first seal ring 2 contacts side by side and not with the second seal ring 4, the first seal ring 2 with outer ring 1 interference fit and with inner ring 6 transition fit, the second seal ring 4 with outer ring 1 transition fit and with inner ring 6 interference fit, the first seal ring skeleton 3 is positioned at the first seal ring 2, the second seal ring skeletons 5 and is positioned at the second seal ring 4.
The first seal ring 2 and the second seal ring 4 all comprise main lip 7, Steel Skeleton 8, the straight lip 9 of auxiliary seal, the oblique lip 10 of auxiliary seal, and the straight lip 9 of auxiliary seal is positioned at main lip 7 both sides with the oblique lip 10 of auxiliary seal, and Steel Skeleton 8 is connected with main lip 7.Main lip 7 is relative with at the bottom of trapezoidal seal groove on inner ring two ribs and do not contact.Age of a draught animal in the trapezoidal seal groove of the straight lip 9 of auxiliary seal and inner ring outside is relative and do not contact.The rib of the trapezoidal seal groove of the oblique lip 10 of auxiliary seal and inner ring inner side is relative and do not contact.Steel Skeleton 8 is for increasing seal ring rigidity.
The first seal ring in working order under with outer ring rotation, mainly play fixed seal ring and leakproof fat dual functions; The second seal ring in working order under with inner ring rotation, mainly play secondary drip-preventing function.Two seal ring transition fit places adopt ramp structure, as shown in Figure 1.Fixation, in B, A place interference fit, is played in the first seal ring and outer ring, and in B ＇, A ＇ place transition fit, frictional heat is few, can reduce temperature rise with inner ring; The second seal ring and outer ring are in C place transition fit, and in C ＇ place interference fit, it does not consider the fixation problem with outer ring with inner ring, thereby, can realize large interference fit with inner ring, leakproof fat is respond well.In addition, it and inner ring are synchronized with the movement, and do not have frictional heat problem.In a word, double sealing structure of the present utility model compared with single sealing have advantages of that frictional heat is few, good sealing effect and to leak fat amount few.
Above-described specific embodiment; technical problem, technological scheme and beneficial effect to solution of the present utility model further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. the noncontact seal device for deep groove ball bearing, it is characterized in that, it comprises outer ring, the first seal ring, the first seal ring skeleton, the second seal ring, the second seal ring skeleton, inner ring, the first seal ring contacts side by side and not with the second seal ring, the first seal ring and outer ring interference fit and with inner ring transition fit, the second seal ring and outer ring transition fit and with inner ring interference fit, the first seal ring skeleton is positioned at the first seal ring, and the second seal ring skeleton is positioned at the second seal ring.
2. the noncontact seal device for deep groove ball bearing as claimed in claim 1, it is characterized in that, described the first seal ring and the second seal ring all comprise main lip, Steel Skeleton, the straight lip of auxiliary seal, the oblique lip of auxiliary seal, the straight lip of auxiliary seal and the oblique lip of auxiliary seal are positioned at main lip both sides, and Steel Skeleton is connected with main lip.
3. the noncontact seal device for deep groove ball bearing as claimed in claim 2, is characterized in that, described main lip is relative with at the bottom of trapezoidal seal groove on inner ring two ribs and do not contact.
4. the noncontact seal device for deep groove ball bearing as claimed in claim 2, is characterized in that, age of a draught animal in the trapezoidal seal groove of the straight lip of described auxiliary seal and inner ring outside is relative and do not contact.
5. the noncontact seal device for deep groove ball bearing as claimed in claim 2, is characterized in that, the rib of the trapezoidal seal groove of the oblique lip of described auxiliary seal and inner ring inner side is relative and do not contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243680.5U CN203822868U (en) | 2014-05-14 | 2014-05-14 | Non-contact sealing device for deep-groove ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243680.5U CN203822868U (en) | 2014-05-14 | 2014-05-14 | Non-contact sealing device for deep-groove ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822868U true CN203822868U (en) | 2014-09-10 |
Family
ID=51478377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243680.5U Expired - Fee Related CN203822868U (en) | 2014-05-14 | 2014-05-14 | Non-contact sealing device for deep-groove ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953651A (en) * | 2014-05-14 | 2014-07-30 | 镇江华天轴承有限公司 | Non-contact sealing device for deep groove ball bearing |
-
2014
- 2014-05-14 CN CN201420243680.5U patent/CN203822868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953651A (en) * | 2014-05-14 | 2014-07-30 | 镇江华天轴承有限公司 | Non-contact sealing device for deep groove ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20160514 |