CN202125529U - Cross shaft oil seal - Google Patents
Cross shaft oil seal Download PDFInfo
- Publication number
- CN202125529U CN202125529U CN2011201805866U CN201120180586U CN202125529U CN 202125529 U CN202125529 U CN 202125529U CN 2011201805866 U CN2011201805866 U CN 2011201805866U CN 201120180586 U CN201120180586 U CN 201120180586U CN 202125529 U CN202125529 U CN 202125529U
- Authority
- CN
- China
- Prior art keywords
- sealing
- oil seal
- cross shaft
- rubber body
- cross axle
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 241001531957 Opsariichthys uncirostris Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to a sealing element, in particular to a cross shaft oil seal. The oil seal consists of a rubber body and a Z-shaped framework, wherein the outer end of the rubber body is wrapped on the inner surface of the framework, and the inner end of the rubber body is provided with at least three sealing lips in interference fit with a cross shaft. The cross shaft oil seal achieves axial and radial oil seal and seal of external impurities, the follow-up performance is good, and good sealing effect can be still ensured when the shaft swings. In addition, the cross shaft oil seal is high in strength, not easy to deform and suitable for small sealing space.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of cross axle oil sealing.
Background technique
Along with the continuous development of industry, to oil sealing require increasingly high.In employed oil sealing, rotary shaft oil seal the operating conditions that will bear more and more harsher.It must bear high low temperature, high linear speed, operating conditions that load is big, and will have long working life and better seal performance.Existing rotary shaft oil seal is generally the monomer Sealing, and this Sealing Performance of Oil Seal is relatively poor, the phenomenon of oil impregnate and leakage of oil occurs through regular meeting, and working life is shorter.Especially when this oil sealing is used for the cross axle sealing,, be easy to cause the oil sealing leakage of oil because cross axle can produce bidirectional swinging; In addition, the seal space of cross axle is less, oil sealing is produced cause bigger extruding force, oil sealing easy deformation.
The model utility content
The purpose of the utility model is to have proposed a kind of cross axle oil sealing; This oil sealing has been realized axially with radially grease seal and to the sealing of foreign matter; Servo-actuated property is good, when swing takes place cross axle, still can keep the better seal effect, and its intensity is high; Not yielding, be applicable to less seal space.
The utility model is that the technological scheme below adopting realizes: a kind of cross axle oil sealing; Form by rubber body and skeleton; Wherein, The outer end of said rubber body is coated on the internal surface of skeleton, and the inner of rubber body is provided with at least three and is the sealing lip of interference fit with cross axle, and skeleton is " Z " font.
The beneficial effect of the utility model is: at first; Be set to the structural type of three lips or more lips through sealing lip; Can improve the servo-actuated property of oil sealing, when cross axle generation bidirectional swinging, oil sealing still can keep the better seal effect; Prevent the lubricating grease leakage, sealing lip can also prevent preferably that foreign matter from getting in the lubricating grease simultaneously; The second, " Z " font skeleton can improve the intensity of oil sealing, so this oil sealing is not yielding when in narrow and small seal space, using, and is applicable to the sealing of cross axle.
Description of drawings
Fig. 1 is the half sectional view of the utility model.
Among the figure: 1 rubber body; 2 skeletons; 3 sealing lip I; 4 sealing lip II; 5 sealing lip III.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the described cross axle oil sealing of the utility model.This oil sealing is made up of rubber body 1 and skeleton 2.The outer end of rubber body 1 is coated on the internal surface of skeleton 2, and the inner of rubber body 1 is provided with three sealing lips, is respectively sealing lip I 3, sealing lip II 4 and sealing lip III5.Be interference fit between the lip of three sealing lips and the cross axle.Be set to the structural type of three lips through sealing lip, can improve the servo-actuated property of oil sealing, when cross axle generation bidirectional swinging, oil sealing still can keep the better seal effect, prevents that lubricating grease from revealing; In addition, three sealing lips can also prevent that except playing the effect of packing grease foreign matter from getting in the lubricating grease.Skeleton 2 is " Z " font, has improved the intensity of oil sealing, has reduced the distortion of oil sealing, is applicable to seal space less in the cross axle.
In the utility model, the sealing lip of greater number can be set also on the rubber body 1, be not limited to described three of present embodiment.
Claims (1)
1. cross axle oil sealing; Form by rubber body (1) and skeleton (2); It is characterized in that: the outer end of said rubber body (1) is coated on the internal surface of skeleton (2), and the inner of rubber body is provided with at least three and is the sealing lip of interference fit with cross axle, and skeleton (2) is " Z " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201805866U CN202125529U (en) | 2011-05-31 | 2011-05-31 | Cross shaft oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201805866U CN202125529U (en) | 2011-05-31 | 2011-05-31 | Cross shaft oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202125529U true CN202125529U (en) | 2012-01-25 |
Family
ID=45488597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201805866U Expired - Fee Related CN202125529U (en) | 2011-05-31 | 2011-05-31 | Cross shaft oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202125529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989177A (en) * | 2017-05-15 | 2017-07-28 | 常州绍鼎密封科技有限公司 | Tool rest shaft sealer |
| CN109139917A (en) * | 2017-06-19 | 2019-01-04 | 尼亚布科知识产权控股有限责任公司 | The universal-joint-pin type universal splice seal of antelabium orientation with optimization |
-
2011
- 2011-05-31 CN CN2011201805866U patent/CN202125529U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989177A (en) * | 2017-05-15 | 2017-07-28 | 常州绍鼎密封科技有限公司 | Tool rest shaft sealer |
| CN109139917A (en) * | 2017-06-19 | 2019-01-04 | 尼亚布科知识产权控股有限责任公司 | The universal-joint-pin type universal splice seal of antelabium orientation with optimization |
| US10955005B2 (en) | 2017-06-19 | 2021-03-23 | Neapco Intellectual Property Holdings, Llc | Cardan universal joint seal with radially extending lips |
| CN109139917B (en) * | 2017-06-19 | 2022-02-22 | 尼亚布科知识产权控股有限责任公司 | Cross-axle universal joint seal with optimized lip orientation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20120531 |