CN204153152U - The external shaft seal of two-way lip - Google Patents
The external shaft seal of two-way lip Download PDFInfo
- Publication number
- CN204153152U CN204153152U CN201420541073.7U CN201420541073U CN204153152U CN 204153152 U CN204153152 U CN 204153152U CN 201420541073 U CN201420541073 U CN 201420541073U CN 204153152 U CN204153152 U CN 204153152U
- Authority
- CN
- China
- Prior art keywords
- lips
- flanging
- inner frame
- lip
- surrounding edge
- 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 With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses the external shaft seal of a kind of two-way lip, the equal outward flanging in two ends of purchasing ore (3), form the first flanging (3a) and the second flanging (3b) respectively, at purchasing ore (3) upper suit first lips (1), the second lips (2) and inner frame (4), one end and second flanging (3b) of described inner frame (4) abut against, and the first lips (1) and the second lips (2) are pressed on the first flanging (3a) by the other end of inner frame (4).The utility model is external by two-way lip, achieve the restriction that lip under specific condition can not contact rotating shaft, and overcome lip profile shaft envelope can not the drawback of bidirectional rotation, while rotating shaft of not wearing and tearing, good airproof performance, production medium can not be polluted, there is the features such as design is ingenious, structure simple, transformation is easy, cost is low, the manufacturing mechanisms such as various food, cosmetics, chemical industry all can use.
Description
Technical field
The utility model relates to a kind of Sealing, particularly the external shaft seal of the two-way lip of one.
Background technique
At present, the manufacturing mechanism of the industries such as food, cosmetics, chemical industry is very high to antipollution requirement, and the rotating shaft of equipment can not be too hard, general employing 304 stainless steels.The media such as the food in equipment are not by the pollution of lip profile shaft envelope, and therefore lip can not contact with axle.But traditional shaft seal does not all reach above-mentioned requirements, thus can only replace with axle sleeve, but axle sleeve hardness is higher, is not only difficult to solve antipollution problem, and easily causes the rotating shaft of equipment to wear and tear.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of sealing and the good external shaft seal of two-way lip of preventing polluting effect.
Technical solutions of the utility model are as follows: the external shaft seal of a kind of two-way lip, purchasing ore (3) is hollow sleeve structure, the equal outward flanging in two ends of this purchasing ore (3), form the first flanging (3a) and the second flanging (3b) respectively, in upper suit first lips (1) of purchasing ore (3), second lips (2) and inner frame (4), one end and second flanging (3b) of described inner frame (4) abut against, first lips (1) and the second lips (2) are pressed on the first flanging (3a) by the other end of inner frame (4), the edge of described first lips (1) is formed with the first surrounding edge (1a) by flange, the edge of the second lips (2) is formed with the second surrounding edge (2a) by flange, second surrounding edge (2a) and the first surrounding edge (1a) are arranged dorsad.
The utility model is arranged in oil sealing base chamber, and is set in rotating shaft by purchasing ore, purchasing ore and rotating shaft drive fit.When purchasing ore revolves round the sun with rotating shaft, the first lips and the rotation in oil sealing base chamber of the second lips, play seal action.Wherein the first lips gear ash, prevents in dust access arrangement oil sealing base; Second lips gear oil, prevents lubricant grease in oil sealing base to external leakage; If the first lips and the second lips are arranged to same size, then can realize bidirectional rotation sealing.The utility model is external by lip, lip can not be allowed under achieving specific condition to contact the limitation restriction of rotating shaft, and overcome lip profile shaft envelope can not the drawback of bidirectional rotation, while guaranteeing that sealing effect is good, to effectively prevent in equipment food etc. and produce medium and do not pollute by lip profile shaft envelope.
In order to simplified structure, facilitate processing and fabricating and assembling, and ensure the fixing that the first lips and the second lips compress, described inner frame (4) is hollow sleeve structure, and inner frame (4) is formed with compressing tablet (4a) near one end of the first flanging (3a) by flange.
Described purchasing ore (3) and inner frame (4) are made by 304 stainless steels, and selection is easy so on the one hand, and cost of production is low; On the other hand, the hardness of skeleton and the hardness of rotating shaft adapt, even if in the environment without oil, also can ensure the not wearing and tearing of rotating shaft surface.
Be provided with spirality shallow slot at the outer wall of described first surrounding edge (1a) and the outer wall of the second surrounding edge (2a), the spirality shallow slot on the first surrounding edge (1a) is contrary with the spirality shallow slot rotation direction on the second surrounding edge (2a).Spirality shallow slot stores lubricant grease when being used for axial motion, and falls mill, heat radiation, makes the surrounding edge expansion sealing tubing envelope seat chamber of first, second lips.
Described first lips (1) and the second lips (2) are made by teflon, such nonhazardous, and good corrosion resistance, can meet the needs under specific condition.
Beneficial effect: the utility model is external by two-way lip, achieve the restriction that lip under specific condition can not contact rotating shaft, and overcome lip profile shaft envelope can not the drawback of bidirectional rotation, while rotating shaft of not wearing and tearing, good airproof performance, production medium can not be polluted, there is the features such as design is ingenious, structure simple, transformation is easy, cost is low, the manufacturing mechanisms such as various food, cosmetics, chemical industry all can use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, the utility model is made up of the first lips 1, second lips 2, purchasing ore 3 and inner frame 4.Wherein, purchasing ore 3 is hollow sleeve structure, and is preferably made up of 304 stainless steels.Purchasing ore 3 horizontal flange as outside in illustrated upper end, forms the first flanging 3a; The outside horizontal flange in lower end of purchasing ore 3, form the second flanging 3b, the second flanging 3b parallels with the first flanging 3a.
As shown in Figure 1, between the first flanging 3a and the second flanging 3b, set gradually the first lips 1, second lips 2 and inner frame 4, first lips 1, second lips 2 and inner frame 4 from top to bottom be all set on purchasing ore 3.Inner frame 4 is hollow sleeve structure, and is preferably made up of 304 stainless steels.Lower end and the second flanging 3b of inner frame 4 abut against, and the upper end of inner frame 4 is formed with compressing tablet 4a by flange, and this compressing tablet 4a parallels with the first flanging 3a, and the first lips 1 and the second lips 2 are pressed on the first flanging 3a by compressing tablet 4a.
As shown in Figure 1, the first lips 1 and the second lips 2 is all preferred is made up of teflon.The edge of the first lips 1 is by being formed with the first surrounding edge 1a to upper overturning, the edge of the second lips 2 is formed with the second surrounding edge 2a by downward flange.Be provided with spirality shallow slot at the outer wall of the first surrounding edge 1a and the outer wall of the second surrounding edge 2a, the spirality shallow slot on the first surrounding edge 1a is contrary with the spirality shallow slot rotation direction on the second surrounding edge 2a.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technician in the art according to design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (5)
1. the external shaft seal of two-way lip, it is characterized in that: purchasing ore (3) is hollow sleeve structure, the equal outward flanging in two ends of this purchasing ore (3), form the first flanging (3a) and the second flanging (3b) respectively, in upper suit first lips (1) of purchasing ore (3), second lips (2) and inner frame (4), one end and second flanging (3b) of described inner frame (4) abut against, first lips (1) and the second lips (2) are pressed on the first flanging (3a) by the other end of inner frame (4), the edge of described first lips (1) is formed with the first surrounding edge (1a) by flange, the edge of the second lips (2) is formed with the second surrounding edge (2a) by flange, second surrounding edge (2a) and the first surrounding edge (1a) are arranged dorsad.
2. the external shaft seal of two-way lip as claimed in claim 1, it is characterized in that: described inner frame (4) is hollow sleeve structure, inner frame (4) is formed with compressing tablet (4a) near one end of the first flanging (3a) by flange.
3. the external shaft seal of two-way lip as claimed in claim 1 or 2, is characterized in that: described purchasing ore (3) and inner frame (4) are made by 304 stainless steels.
4. the external shaft seal of two-way lip as claimed in claim 1, it is characterized in that: be provided with spirality shallow slot at the outer wall of described first surrounding edge (1a) and the outer wall of the second surrounding edge (2a), the spirality shallow slot on the first surrounding edge (1a) is contrary with the spirality shallow slot rotation direction on the second surrounding edge (2a).
5. the external shaft seal of two-way lip as described in claim 1 or 4, is characterized in that: described first lips (1) and the second lips (2) are made by teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541073.7U CN204153152U (en) | 2014-09-19 | 2014-09-19 | The external shaft seal of two-way lip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541073.7U CN204153152U (en) | 2014-09-19 | 2014-09-19 | The external shaft seal of two-way lip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153152U true CN204153152U (en) | 2015-02-11 |
Family
ID=52511268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420541073.7U Expired - Fee Related CN204153152U (en) | 2014-09-19 | 2014-09-19 | The external shaft seal of two-way lip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626870A (en) * | 2016-03-10 | 2016-06-01 | 中国北方车辆研究所 | Rotary sealing structure with bidirectional sealing function |
-
2014
- 2014-09-19 CN CN201420541073.7U patent/CN204153152U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626870A (en) * | 2016-03-10 | 2016-06-01 | 中国北方车辆研究所 | Rotary sealing structure with bidirectional sealing function |
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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 |
Granted publication date: 20150211 Termination date: 20150919 |
|
| EXPY | Termination of patent right or utility model |