CN203868341U - Oil-proof and waterproof structure applied to magnetic fluid sealing device - Google Patents
Oil-proof and waterproof structure applied to magnetic fluid sealing device Download PDFInfo
- Publication number
- CN203868341U CN203868341U CN201420178851.0U CN201420178851U CN203868341U CN 203868341 U CN203868341 U CN 203868341U CN 201420178851 U CN201420178851 U CN 201420178851U CN 203868341 U CN203868341 U CN 203868341U
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- magnetic
- oil
- magnetic fluid
- metal frame
- coaxial shell
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- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
An oil-proof and waterproof structure applied to a magnetic fluid sealing device comprises a coaxial shell, magnetic sealing parts, a magnetic transmission shaft and bearings for fixing the magnetic transmission shaft and the coaxial shell. The magnetic sealing parts are arranged on the two sides of the magnetic transmission shaft. The bearings are arranged at the two ends of the magnetic sealing parts. A framework oil seal is arranged on the periphery of the area defined by the coaxial shell, the bearings and the magnetic transmission shaft. The oil-proof and waterproof structure has the advantages that due to the structure, magnetic fluid is sealed, the vacuum degree can be kept, and water and oil are effectively prevented from intruding into and damaging the magnetic fluid sealing device on the premise of little influencing running of magnetic fluid.
Description
Technical field
The utility model relates to the seal arrangement of a kind of engineering element or parts, relates to specifically a kind of waterproof, anti-oil structure that is applied to magnetic fluid seal device.
Background technique
In prior art, by magnetic field by magnetic fluid be fixed on running shaft surrounding, form the seal arrangement of on-mechanical contact, be widely used in semiconductor solar cell and LED equal vacuum manufacturing mechanism; Existing partial vacuum manufacturing mechanism is in running or after operation, in in cavity, can emit industry water and rinse, or the oil gas turning round in technique, water or oil are invaded in the magnetic fluid seal device in running, the magnetic liquid that can destroy hermetic unit, causes equipment leakage.
Model utility content
The purpose of this utility model is in order to provide a kind of rational in infrastructure, effectively intercepts the waterproof that is applied to magnetic fluid seal device, the anti-oil structure of water, oil intrusion magnetic fluid seal device.
In order to reach the purpose of this utility model, technological scheme is as follows:
A kind of waterproof, anti-oil structure that is applied to magnetic fluid seal device, comprise coaxial shell, magnetic seal parts, magnetic transmission axle and the bearing for fixed magnetic transmission shaft and coaxial shell, described magnetic seal parts are located at the both sides of magnetic transmission axle, described bearing is located at the two ends of magnetic seal parts, it is characterized in that: outside the described region surrounding at coaxial shell, bearing and magnetic transmission axle, be arranged with outside framework oil seal.
As preferred technological scheme: described outside framework oil seal is made up of metal frame, rubber body and spring.
As preferred technological scheme: described metal frame is inverted L-type structure, and the attachment portion of described metal frame lower end and rubber body is the shape that has a downwarp.
As preferred technological scheme: described rubber body connects with magnetic transmission axle interference fit, and described spring housing is located on the interior ring end face of rubber body.
As preferred technological scheme: the cross section of described metal frame is close to coaxial shell, and the external diameter fit dimension of described coaxial shell and metal frame is Φ D, and fit tolerance is H8.
The beneficial effects of the utility model are: this kind of structure makes magnetic fluid seal keeping degree of vacuum, under the prerequisite of little effect magnetic fluid running, effectively intercepts water, oil intrusion magnetic fluid seal device, thereby device is caused damage.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is outside framework oil seal sectional view of the present utility model.
In figure: 10-coaxial shell, 20-magnetic seal parts, 30-magnetic transmission axle, 40-bearing, 50-outside framework oil seal, 51-metal frame, 52-rubber body, 53-spring.
Embodiment
Below in conjunction with embodiment, the utility model is further described, but protection domain of the present utility model is not only confined to embodiment.
As shown in Fig. 1～2, a kind of waterproof, anti-oil structure that is applied to magnetic fluid seal device, comprise coaxial shell 10, magnetic seal parts 20, magnetic transmission axle 30 and the bearing 40 with coaxial shell 10 for fixed magnetic transmission shaft 30, magnetic seal parts 20 are located at the both sides of magnetic transmission axle 30, bearing 40 is located at the two ends of magnetic seal parts 20, outside the region surrounding, is arranged with outside framework oil seal 50 at coaxial shell 10, bearing 40 and magnetic transmission axle 30.
Outside framework oil seal 50 is made up of metal frame 51, rubber body 52 and spring 53; Metal frame 51 is inverted L-type structure, and the attachment portion of metal frame 51 lower ends and rubber body 52 is the shape that has a downwarp; Rubber body 52 connects with magnetic transmission axle 30 interference fit, and spring 53 is set on the interior ring end face of rubber body 52; The cross section of metal frame 51 is close to coaxial shell 10, coaxial shell 10 is made for permeability magnetic material, can adsorb the metal frame 51 of outside framework oil seal 50, can more fastening outside framework oil seal 50, for ensure outside framework oil seal 50 at the Shi Buhui that runs up by oil, water environment invading, magnetic transmission axle 30 and coaxial shell 10 have requirement with the external diameter fit dimension of outside framework oil seal 50 to same concentricity, concentricity is 0.02, coaxial shell 10 is Φ D with the external diameter fit dimension of metal frame 51, and fit tolerance is H8.
Finally it should be noted that: above embodiment is only in order to illustrate the utility model and the described technological scheme of unrestricted the utility model, therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment, but, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, and all do not depart from technological scheme and the improvement thereof of spirit and scope of the present utility model, it all should be encompassed in claim scope of the present utility model.
Claims (5)
1. one kind is applied to the waterproof of magnetic fluid seal device, anti-oil structure, comprise coaxial shell (10), magnetic seal parts (20), magnetic transmission axle (30) and for the bearing (40) of fixed magnetic transmission shaft (30) and coaxial shell (10), described magnetic seal parts (20) are located at the both sides of magnetic transmission axle (30), described bearing (40) is located at the two ends of magnetic seal parts (20), it is characterized in that: in coaxial shell (10), outside the region that bearing (40) and magnetic transmission axle (30) surround, be arranged with outside framework oil seal (50).
2. a kind of waterproof, anti-oil structure that is applied to magnetic fluid seal device according to claim 1, is characterized in that: described outside framework oil seal (50) is made up of metal frame (51), rubber body (52) and spring (53).
3. a kind of waterproof, anti-oil structure that is applied to magnetic fluid seal device according to claim 2, it is characterized in that: described metal frame (51) is inverted L-type structure, the attachment portion of described metal frame (51) lower end and rubber body (52) is the shape that has a downwarp.
4. a kind of waterproof, anti-oil structure that is applied to magnetic fluid seal device according to claim 2, it is characterized in that: described rubber body (52) connects with magnetic transmission axle (30) interference fit, and described spring (53) is set on the interior ring end face of rubber body (52).
5. a kind of waterproof, anti-oil structure that is applied to magnetic fluid seal device according to claim 2, it is characterized in that: the cross section of described metal frame (51) is close to coaxial shell (10), described coaxial shell (10) is Φ D with the external diameter fit dimension of metal frame (51), and fit tolerance is H8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178851.0U CN203868341U (en) | 2014-04-14 | 2014-04-14 | Oil-proof and waterproof structure applied to magnetic fluid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178851.0U CN203868341U (en) | 2014-04-14 | 2014-04-14 | Oil-proof and waterproof structure applied to magnetic fluid sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868341U true CN203868341U (en) | 2014-10-08 |
Family
ID=51649296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420178851.0U Expired - Fee Related CN203868341U (en) | 2014-04-14 | 2014-04-14 | Oil-proof and waterproof structure applied to magnetic fluid sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763077A (en) * | 2016-08-15 | 2018-03-06 | 上海汽车集团股份有限公司 | Axle sleeve, axle assembly, testing stand and automobile |
| CN108933012A (en) * | 2017-05-24 | 2018-12-04 | 哈尔滨工业大学（威海） | A kind of braiding skeleton magnetorheological materials and preparation method thereof |
-
2014
- 2014-04-14 CN CN201420178851.0U patent/CN203868341U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763077A (en) * | 2016-08-15 | 2018-03-06 | 上海汽车集团股份有限公司 | Axle sleeve, axle assembly, testing stand and automobile |
| CN107763077B (en) * | 2016-08-15 | 2020-07-31 | 上海汽车集团股份有限公司 | Axle sleeve, axle assembly, test bench and car |
| CN108933012A (en) * | 2017-05-24 | 2018-12-04 | 哈尔滨工业大学（威海） | A kind of braiding skeleton magnetorheological materials and preparation method thereof |
| CN108933012B (en) * | 2017-05-24 | 2020-11-20 | 哈尔滨工业大学（威海） | Knitted framework magnetorheological material and preparation method thereof |
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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: 20141008 Termination date: 20190414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |