CN201258920Y - Bearing seal structure with protection shield - Google Patents
Bearing seal structure with protection shield Download PDFInfo
- Publication number
- CN201258920Y CN201258920Y CNU2008202025677U CN200820202567U CN201258920Y CN 201258920 Y CN201258920 Y CN 201258920Y CN U2008202025677 U CNU2008202025677 U CN U2008202025677U CN 200820202567 U CN200820202567 U CN 200820202567U CN 201258920 Y CN201258920 Y CN 201258920Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- seal
- ring
- rubber
- protective housing
- 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 - Lifetime
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- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a bearing seal structure with a protective cover, comprising a bearing outer ring, a bearing inner ring, a tri-lip seal ring and a protective cover. The tri-lip seal ring is made of rubber and a framework which are integrated to be an inner seal ring, and is tightly fixed inside the seal groove of the bearing outer ring; the protective cover is covered on the bearing inner ring, and is tightly matched with the bearing inner ring; and a gap that can be filled with adequate grease is left between the inner seal ring and the protective cover; the protective cover comprises an outer framework and a trumpet-shaped rubber ring adhered with the internal surface thereof, and the rubber lips are tightly adhered with the end face of the bearing outer ring and have outside diameters smaller than that of the outer framework. The bearing seal structure can maintain excellent seal effect of bearings, is applied to working places in dirty environments, and prolongs the service life of bearings.
Description
Technical field
The utility model relates to a kind of bearing seal structure, particularly a kind of bearing seal structure that protective housing is arranged.
Background technique
The sealing configuration of bearing is for leakage that prevents lubricant oil in the bearing and outside dust, water, gas or other dirts intrusion bearing inside, and bearing is moved under a good working environment.In the existing bearing seal structure, two kinds of forms are arranged generally: a kind of is the individual layer sealing, and as rubber seal or three lip seal circles, this individual layer seal ring directly contacts with other dirts such as ambient atmosphere, dust, water, and these dirts invade bearing inside easily; A kind of is double-layer seal, outer is kiss-coating dust cover not, and internal layer is a rubber seal.Though this form has outer dust cover, but between outer dust cover and the bearing outer ring slit is arranged, atmosphere is being mingled with dust and is entering cavity between dust cover and the internal layer rubber seal by the slit between dust cover and bearing outer ring very easily, after the bearing long-term work, dirt in this cavity accumulation just is easy to invade the bearing internal cavities, directly influences the working life of bearing.
The model utility content
The utility model has overcome deficiency of the prior art, and a kind of good sealing effect, bearing seal structure easy for installation are provided.
For solving the problems of the technologies described above, the utility model is to be achieved through the following technical solutions:
A kind of with protecting cover bearing seal structure, comprise bearing outer ring, bearing inner race, three lip seal circle and protective housings, three lip seal circles are made one by rubber and skeleton becomes the internal layer seal ring, and be fastened in the seal groove of bearing outer ring, shielding cover is on bearing inner race, and with the bearing inner race drive fit, leave the space that can fill an amount of grease between internal layer seal ring and the protective housing; Protective housing is made up of outer skeleton and the horn-like rubber ring that is pasted on its internal surface, and its rubber lip is close to the bearing outer ring end face.
As the improvement to such scheme, the rubber seal lip of described protective housing contacts with the bearing outer ring end face, and the external diameter of rubber seal lip is less than the external diameter of outer skeleton; The horn mouth outer of the rubber part of described protective housing has one by the wedge projection branch of the interior edge face circular arc place of outer skeleton support.
Owing to adopt technique scheme, the utlity model has following beneficial effect: contact with the bearing outer ring end face because of having adopted the rubber seal lip on the protective housing, and the external diameter of rubber seal lip is less than the external diameter of outer skeleton, and adopt three lip seal circles as the internal layer seal ring, just form double-layer seal, improved the sealing effect of bearing greatly, effectively prevented the infiltration of outside dirt, and install easily, prolonged the working life of bearing.
Description of drawings
Fig. 1 is the scheme of installation of the utility model on bearing;
Fig. 2 is that the utility model master looks the sectional structure schematic representation.
Embodiment
Understanding for the ease of those skilled in the art is further described the utility model below in conjunction with specific embodiments and the drawings:
Shown in accompanying drawing 1,2, this programme discloses a kind of good sealing effect, easy bearing seal structure has been installed.
This bearing seal structure comprises that bearing outer ring 1, bearing inner race 2, three lip seal circles 3 and protective housing 4, three lip seal circles 3 make one by rubber and skeleton and become the internal layer seal ring, and is fastened in the seal groove in the bearing outer ring 1; Protective housing 4 is enclosed within on the bearing inner race 2, closely cooperates with bearing inner race 2, and described protective housing 4 is made up of outer skeleton 41 and horn-like rubber 42, and outer skeleton 41 is made by steel plate, and plating zinc on surface prevents to get rusty; Horn-like rubber 42 fits tightly with the internal surface of outer skeleton 41, and the interior edge face that is higher than outer skeleton 41, form the rubber seal lip, this rubber seal lip contacts with bearing outer ring 1 end face, its external diameter is less than the external diameter of outer skeleton 41, make between protective housing 4 and the bearing outer ring 1 and do not have the slit, prevented that effectively water, dust and other dirts from entering the space between protective housing 4 and the internal layer seal ring, strengthened sealing effect, and protective housing 4 has formed double-layer seal with the internal layer seal ring, has further improved sealing effect.Grease can be filled in space between protective housing 4 and the internal layer seal ring, and bearing is after permanent work, even there is dust to enter this space, because the effect of grease, dust can not enter in the bearing yet, bearing lubricated effect, the also big working life that strengthens bearing have not only been played.
The foregoing description is the preferable implementation of the utility model; in addition; all right other implementations of the utility model need to prove that any conspicuous replacement is all within the utility model protection domain under the prerequisite that does not break away from the present utility model design.
Claims (3)
1, a kind of with protecting cover bearing seal structure, comprise bearing outer ring (1), bearing inner race (2), three lip seal circles (3) and protective housing (4), three lip seal circles are made one by rubber and skeleton becomes the internal layer seal ring, and be fastened in the seal groove of bearing outer ring, protective housing (4) is enclosed within on the bearing inner race, and with the bearing inner race drive fit, leave the space that to fill grease between internal layer seal ring and the protective housing, it is characterized in that: protective housing (4) is made up of outer skeleton (41) and the horn-like rubber (42) that is pasted on its internal surface, and its rubber lip is close to the bearing outer ring end face.
2, with protecting cover bearing seal structure according to claim 1 is characterized in that: the external diameter of the rubber seal lip of protective housing is less than the external diameter of outer skeleton.
3, with protecting cover bearing seal structure according to claim 2 is characterized in that: the horn mouth outer of the rubber part of protective housing has one by the wedge projection branch of the interior edge face circular arc place of outer skeleton support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202025677U CN201258920Y (en) | 2008-10-28 | 2008-10-28 | Bearing seal structure with protection shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202025677U CN201258920Y (en) | 2008-10-28 | 2008-10-28 | Bearing seal structure with protection shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201258920Y true CN201258920Y (en) | 2009-06-17 |
Family
ID=40773155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202025677U Expired - Lifetime CN201258920Y (en) | 2008-10-28 | 2008-10-28 | Bearing seal structure with protection shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201258920Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996651A (en) * | 2012-12-10 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Three-lip sealed bearing with protective ring |
| CN103216536A (en) * | 2013-05-02 | 2013-07-24 | 浙江中烟工业有限责任公司 | L-shaped outer spherical surface aligning bearing seat with safety protection cover |
| CN111042789A (en) * | 2019-12-19 | 2020-04-21 | 中石化四机石油机械有限公司 | Mixed discharging system |
| 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 |
-
2008
- 2008-10-28 CN CNU2008202025677U patent/CN201258920Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996651A (en) * | 2012-12-10 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Three-lip sealed bearing with protective ring |
| CN103216536A (en) * | 2013-05-02 | 2013-07-24 | 浙江中烟工业有限责任公司 | L-shaped outer spherical surface aligning bearing seat with safety protection cover |
| CN103216536B (en) * | 2013-05-02 | 2015-10-14 | 浙江中烟工业有限责任公司 | A kind of L-type outer spherical surface regulating center bearing base with safty shield |
| CN111042789A (en) * | 2019-12-19 | 2020-04-21 | 中石化四机石油机械有限公司 | Mixed discharging system |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090617 |