CN203670490U - Bearing - Google Patents
Bearing Download PDFInfo
- Publication number
- CN203670490U CN203670490U CN201420033909.2U CN201420033909U CN203670490U CN 203670490 U CN203670490 U CN 203670490U CN 201420033909 U CN201420033909 U CN 201420033909U CN 203670490 U CN203670490 U CN 203670490U
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- CN
- China
- Prior art keywords
- ring
- sealing lip
- seal
- annular
- 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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Abstract
The utility model discloses a bearing, which is characterized in that an annular seal ring is fixed on an outer race, the outer end of the annular seal ring is an annular clamping part, the side face of the outer race is provided with a clamping groove matched with the clamping part, the inner end of the seal ring is provided with a first seal lip and a second seal lip, an arc concave surface is formed between the first and second seal lips, the outer wall of the inner race is provided with an annular bump, the top of the annular bump is in line contact with the arc concave surface and sealed with the same, the top end of the first seal lip is in line contact with the side wall of the inner race and sealed with the same, the top end of the second seal lip is in line contact with the outer wall of the inner race and sealed with the same, lubricating grease is filled in the arc concave surface, the annular seal ring is provided with a third seal lip and a fourth seal lip, the top ends of the sections of the third and fourth seal lips are planes and tightly fits the inner wall of the outer race, and an annular cavity is formed between the third and fourth seal lips. The bearing provided by the utility model is good in sealing property.
Description
Technical field
The utility model relates to mechanical field, and more particularly, it relates to a kind of bearing.
Background technique
Bearing is in mechanical transmission course, to work the parts of fixing and reducing load friction factor, also can say, in the time that other parts produce relative movement each other on axle, is used for reducing the fixing parts of friction factor and retainer shaft central position in power transmission process.Bearing is a kind of very important component in contemporary machinery, and its major function is supported mechanical solid of rotation, the mechanical load friction factor in order to reduction equipment in transmission process.
Bearing generally comprises outer ring, inner ring and seal ring, seal ring is arranged on Internal and external cycle both sides or a side, between outer ring and inner ring, rolling element is set, bearing when operation outer ring and inner ring between can be by the relative High Rotation Speed of rolling element, if fall into foreign material between outer ring and inner ring, can cause serious wearing and tearing to bearing, affect the working life of bearing; The sealing ring tightness of existing bearing can be not good, easily enters foreign material, had a strong impact on the working life of bearing.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of bearing with good seal performance.
For achieving the above object, the utility model provides following technological scheme: a kind of bearing, comprise outer ring and inner ring, between described outer ring and inner ring, be provided with O-ring seal, described O-ring seal is fixed on outer ring, described O-ring seal outer end is annular inserted part, described side, outer ring is provided with the draw-in groove matching with inserted part, described seal ring the inner is provided with the first sealing lip and the second sealing lip, between the first described sealing lip and the second sealing lip, it is arc-shaped concave, described interior ring outer wall is provided with annular protrusion, described annular protrusion top and arc-shaped concave line contact sealing, the first described sealing lip top and inner ring sidewall line contact sealing, the second described sealing lip top and inner ring outer wall line contact sealing, in described arc-shaped concave, be filled with lubricating grease, described O-ring seal is provided with the 3rd sealing lip and the 4th sealing lip, the 3rd described sealing lip and the top, cross section of the 4th sealing lip are plane and fit tightly with outer ring inwall, between the 3rd described sealing lip the 4th sealing lip, form annular cavity.
The utility model is further set to: in described O-ring seal, be provided with annular brace skeleton, described annular brace skeleton cross section is substantially c-shaped, one end is the first compression end, the other end is the second compression end, the first described compression end is between outer ring and inner ring, and the second described compression end is positioned at draw-in groove.
The utility model is further set to: first compress side pressure to annular cavity, second compresses end slightly to inner ring perk.
The utility model is further set to: omit to inner ring perk one end that described inserted part is goed deep in draw-in groove.
The utility model is further set to: the middle part of described annular brace skeleton and the laminating of side, outer ring.
The utility model is further set to: the axial cross section on described the first sealing lip top, the second sealing lip top, annular protrusion top is arc surface.
The utility model is further set to: described both sides, outer ring are equipped with described O-ring seal.
The utility model is further set to: described annular brace skeleton is formed from steel.
The utility model is further set to: described O-ring seal is made up of rubber material.
By adopting technique scheme, inserted part in the O-ring seal of this bearing coordinates with draw-in groove, O-ring seal is connected closely with outer ring and has formed good sealing, the 3rd sealing lip, the 4th sealing lip are further strengthened again the sealability of O-ring seal and outer ring, and the effect that annular cavity has absorption makes sealing tightr; The first sealing lip and the second sealing lip form line contact sealing with sidewall and the inwall of inner ring respectively, arc-shaped concave between the first sealing lip and the second sealing lip and inner ring inwall are provided with annular protrusion and form line contact sealing, three diatom contact sealings have effectively guaranteed the sealability between O-ring seal and inner ring, and in arc-shaped concave, be filled with lubricating grease, make line contact sealing place, Gai San road can also form oil sealing, greatly improve the sealability of this bearing, effectively prevent that foreign material from entering between inner ring and outer ring, improved working life.
Accompanying drawing explanation
Fig. 1 is the utility model bearing embodiment's sectional view;
Fig. 2 is the partial enlarged drawing of A in Fig. 1.
Reference character: 1, outer ring; 11, draw-in groove; 2, inner ring; 21, annular protrusion; 3, O-ring seal; 31, inserted part; 32, the first sealing lip; 33, the second sealing lip; 34, arc-shaped concave; 35, the 3rd sealing lip; 36, the 4th sealing lip; 37, annular cavity; 38, annular brace skeleton; 381, first compress end; 382, second compress end.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model bearing embodiment is described further.
A kind of bearing, comprise outer ring 1 and inner ring 2, between described outer ring 1 and inner ring 2, be provided with O-ring seal 3, described O-ring seal 3 is fixed on outer ring 1, described O-ring seal 3 outer ends are annular inserted part 31, described 1 side, outer ring is provided with the draw-in groove 11 matching with inserted part 31, described seal ring the inner is provided with the first sealing lip 32 and the second sealing lip 33, between the first described sealing lip 32 and the second sealing lip 33, it is arc-shaped concave 34, described inner ring 2 outer walls are provided with annular protrusion 21, described annular protrusion 21 tops and arc-shaped concave 34 line contact sealings, the first described sealing lip 32 tops and inner ring 2 sidewall line contact sealings, the second described sealing lip 33 tops and inner ring 2 outer wall line contact sealings, in described arc-shaped concave 34, be filled with lubricating grease, described O-ring seal 3 is provided with the 3rd sealing lip 35 and the 4th sealing lip 36, the 3rd described sealing lip 35 and the top, cross section of the 4th sealing lip 36 are plane and fit tightly with outer ring 1 inwall, between the 3rd described sealing lip 35 the 4th sealing lip 36, form annular cavity 37.Inserted part 31 in the O-ring seal 3 of this bearing coordinates with draw-in groove 11, O-ring seal 3 is connected closely with outer ring 1 and has formed good sealing, the 3rd sealing lip 35, the top that the 4th sealing lip 36 is plane can be fitted on 1 inwall of outer ring closely, therefore the 3rd sealing lip 35, the 4th sealing lip 36 is further strengthened again the sealability of O-ring seal 3 and outer ring 1, the annular cavity 37 forming between the 3rd sealing lip 35 and the 4th sealing lip 36 has the effect of absorption, O-ring seal 3 can be adsorbed on outer ring 1 firmly, make sealing tightr, the first sealing lip 32 and the second sealing lip 33 form line contact sealing with sidewall and the inwall of inner ring 2 respectively, arc-shaped concave 34 between the first sealing lip 32 and the second sealing lip 33 is provided with annular protrusion 21 with inner ring 2 inwalls and forms line contact sealing, three diatom contact sealings have effectively guaranteed the sealability between O-ring seal 3 and inner ring 2, and be filled with lubricating grease in arc-shaped concave 34, make line contact sealing place, Gai San road can also form oil sealing, greatly improve the sealability of this bearing, effectively prevent that foreign material from entering between inner ring 2 and outer ring 1, improve working life.
In described O-ring seal 3, be provided with annular brace skeleton 38, described annular brace skeleton 38 cross sections are substantially c-shaped, one end is the first compression end 381, the other end is the second compression end 382, the first described compression end 381 is between outer ring 1 and inner ring 2, and the second described compression end 382 is positioned at draw-in groove 11.Annular brace skeleton 38 can be embedded in O-ring seal 3, it can effectively improve the intensity of O-ring seal 3, simultaneously also can be to 3 stylings of O-ring seal, the first compression end 381 and second compresses end 382 and has effectively improved the sealability that O-ring seal 3 is connected with outer ring 1, guarantee giving full play to of O-ring seal 3 sealabilities, extended its working life.
First compress end 381 and press to annular cavity 37, the second and compress end 382 slightly to inner ring 2 perks.The first compression end 381 and second compresses end 382 O-ring seal 3 can be fixed on outer ring 1 closely, has improved its sealability.
Omit to inner ring 2 perks one end that described inserted part 31 is goed deep in draw-in groove 11, makes inserted part 31 be not easy to deviate from draw-in groove 11, has further guaranteed the sealability of O-ring seal 3.
The middle part of described annular brace skeleton 38 and outer ring 1 side laminating.Steel sealing coordinates soft sealing, can greatly improve the sealability of O-ring seal 3, effectively prevents entering of foreign material.
The axial cross section on described the first sealing lip 32 tops, the second sealing lip 33 tops, annular protrusion 21 tops is arc surface, and arc surface can reduce area of contact, forms line contact sealing.
Described 1 both sides, outer ring are equipped with described O-ring seal 3.While being necessary, in 1 both sides, outer ring, this O-ring seal 3 and corresponding construction is set, has guaranteed that these bearing both sides all have sealability simultaneously.
Described annular brace skeleton 38 is formed from steel, and steel frame strength is large, and anti-pressure ability is strong.
Described O-ring seal 3 is made up of rubber material, and rubber material has good heat resistance, wear resistance, makes O-ring seal 3 have good working life.
This bearing is more applicable to outer ring 1 and maintains static, on the equipment that inner ring 2 rotates.
Claims (9)
1. a bearing, comprise outer ring and inner ring, between described outer ring and inner ring, be provided with O-ring seal, it is characterized in that: described O-ring seal is fixed on outer ring, described O-ring seal outer end is annular inserted part, described side, outer ring is provided with the draw-in groove matching with inserted part, described seal ring the inner is provided with the first sealing lip and the second sealing lip, between the first described sealing lip and the second sealing lip, it is arc-shaped concave, described interior ring outer wall is provided with annular protrusion, described annular protrusion top and arc-shaped concave line contact sealing, the first described sealing lip top and inner ring sidewall line contact sealing, the second described sealing lip top and inner ring outer wall line contact sealing, in described arc-shaped concave, be filled with lubricating grease, described O-ring seal is provided with the 3rd sealing lip and the 4th sealing lip, the 3rd described sealing lip and the top, cross section of the 4th sealing lip are plane and fit tightly with outer ring inwall, between the 3rd described sealing lip the 4th sealing lip, form annular cavity.
2. bearing according to claim 1, it is characterized in that: in described O-ring seal, be provided with annular brace skeleton, described annular brace skeleton cross section is substantially c-shaped, one end is the first compression end, the other end is the second compression end, the first described compression end is between outer ring and inner ring, and the second described compression end is positioned at draw-in groove.
3. bearing according to claim 2, is characterized in that: first compress side pressure to annular cavity, second compresses end slightly to inner ring perk.
4. according to the bearing described in claim 2 or 3, it is characterized in that: omit to inner ring perk one end that described inserted part is goed deep in draw-in groove.
5. bearing according to claim 4, is characterized in that: the middle part of described annular brace skeleton and the laminating of side, outer ring.
6. according to the bearing described in claim 1 or 2 or 3 or 5, it is characterized in that: the axial cross section on described the first sealing lip top, the second sealing lip top, annular protrusion top is arc surface.
7. bearing according to claim 6, is characterized in that: described both sides, outer ring are equipped with described O-ring seal.
8. according to the bearing described in claim 1 or 7, it is characterized in that: described annular brace skeleton is formed from steel.
9. bearing according to claim 8, is characterized in that: described O-ring seal is made up of rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033909.2U CN203670490U (en) | 2014-01-20 | 2014-01-20 | Bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033909.2U CN203670490U (en) | 2014-01-20 | 2014-01-20 | Bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670490U true CN203670490U (en) | 2014-06-25 |
Family
ID=50966792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420033909.2U Expired - Fee Related CN203670490U (en) | 2014-01-20 | 2014-01-20 | Bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939839A (en) * | 2017-12-22 | 2018-04-20 | 上海中隆轴承有限公司 | A kind of bearing with axial pretightening collocation structure |
| CN114352632A (en) * | 2021-12-24 | 2022-04-15 | 江苏日晟轴承股份有限公司 | Water pump bearing with sealing structure |
-
2014
- 2014-01-20 CN CN201420033909.2U patent/CN203670490U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939839A (en) * | 2017-12-22 | 2018-04-20 | 上海中隆轴承有限公司 | A kind of bearing with axial pretightening collocation structure |
| CN114352632A (en) * | 2021-12-24 | 2022-04-15 | 江苏日晟轴承股份有限公司 | Water pump bearing with sealing structure |
| CN114352632B (en) * | 2021-12-24 | 2024-01-02 | 江苏日晟轴承股份有限公司 | Water pump bearing with sealing structure |
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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: 20140625 Termination date: 20180120 |