CN203796966U - Double-shaft magnetic fluid sealing device - Google Patents
Double-shaft magnetic fluid sealing device Download PDFInfo
- Publication number
- CN203796966U CN203796966U CN201420185965.8U CN201420185965U CN203796966U CN 203796966 U CN203796966 U CN 203796966U CN 201420185965 U CN201420185965 U CN 201420185965U CN 203796966 U CN203796966 U CN 203796966U
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- China
- Prior art keywords
- transmission shaft
- intermediate solid
- magnetic
- shaft
- drive shaft
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- 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
A double-shaft magnetic fluid sealing device comprises a coaxial housing, magnetic sealing components, transmission shafts and bearings; the magnetic sealing components are arranged on the two sides of the transmission shafts; the bearings are arranged at the two ends of the magnetic sealing components; the transmission shafts comprise an inner transmission shaft and outer transmission shafts; the inner transmission shaft penetrates through the outer transmission shafts; the bearings comprise inner transmission shaft bearings and outer transmission shaft bearings; the magnetic sealing components comprise an inner transmission shaft magnetic sealing component and an outer transmission shaft magnetic sealing component. The double-shaft magnetic fluid sealing device has the benefits that problem of equipment having limitation on sealing spaces are solved as the double-shaft magnetic fluid sealing device adopts one set of magnetic fluid to provide two groups of power simultaneously; the double-shaft magnetic fluid sealing device is high in practicability and marketable value.
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 twin shaft magnetic fluid seal device.
Background technique
Along with expanding economy, vacuum equipment development is both at home and abroad swift and violent, on many back rotation seal arrangements, magnetic fluid seal is widely used, for example, in the sealing of monocrystaline silicon stove, vacuum brazing furnace, vacuum melting furnace, chemical vapor deposition, ion film plating, liquid crystal regeneration equal vacuum equipment, and high-temperature high-pressure apparatus and the sealing to the higher equipment of environmental requirement, thereby improve the quality of products, obtain good economic benefit.
Existing magnetic fluid seal device structure only can be inputted power by a transmission shaft, if need two groups of power, must use two device for sealing magnetic fluid, and this has in some spaces on the equipment of limitation and is difficult to realize.
Model utility content
The purpose of this utility model is in order to provide a kind of rational in infrastructure, to provide two cover power by a set of magnetic fluid, greatly reducing the twin shaft magnetic fluid seal device in magnet fluid sealing space.
In order to reach the purpose of this utility model, technological scheme is as follows:
A kind of twin shaft magnetic fluid seal device, comprise coaxial shell, magnetic seal parts, transmission shaft and bearing, described magnetic seal parts are located at the both sides of transmission shaft, described bearing is located at the two ends of magnetic seal parts, it is characterized in that: described transmission shaft comprises intermediate solid drive shaft and outer transmission shaft, described intermediate solid drive shaft is worn and is penetrated outer transmission shaft, and described bearing comprises intermediate solid drive shaft bearing and outer transmission shaft bearing, and described magnetic seal parts comprise intermediate solid drive shaft magnetic seal parts and outer transmission shaft magnetic seal parts.
As preferred technological scheme: the upside between described intermediate solid drive shaft and outer transmission shaft and downside are respectively provided with a HALF OPENING transmission inner chamber, in described transmission inner chamber, be provided with intermediate solid drive shaft magnetic seal parts, described intermediate solid drive shaft bearing is located at the both sides of intermediate solid drive shaft magnetic seal parts, in order to seal fixed conveyor inner chamber.
As preferred technological scheme: the upside between described outer transmission shaft and coaxial shell and downside are respectively provided with half open enclosure inner chamber, in described shell inner cavity, be provided with outer transmission shaft magnetic seal parts, described outer transmission shaft bearing is located at the both sides of outer transmission shaft magnetic seal parts, in order to seal set casing inner chamber.
As preferred technological scheme: also comprise top cover, the intermediate solid drive shaft bearing of described transmission inner chamber and shell inner cavity atmosphere one side and outer transmission shaft bearing end are respectively provided with top cover along position, described top cover is fastened in order to support the pressure that run up middle transmission inner chamber and shell inner cavity bear.
As preferred technological scheme: the intermediate solid drive shaft bearing of described transmission inner chamber and shell inner cavity vacuum one side and outer transmission shaft bearing are near cavity wall in transmission and shell inner cavity inwall.
The beneficial effects of the utility model are: the device for sealing magnetic fluid of this kind of cross-compound arrangement is by use a set of magnetic fluid that two groups of power can be provided simultaneously, and solved some has the equipment of limitation on seal space, and practical, market value is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 10-transmission shaft, 11-intermediate solid drive shaft, the outer transmission shaft of 12-, 20-bearing, 21-intermediate solid drive shaft bearing, the outer transmission shaft bearing of 22-, 30-magnetic seal parts, 31-intermediate solid drive shaft magnetic seal parts, the outer transmission shaft magnetic seal parts of 32-, 40-coaxial shell, 50-top cover, 60-transmission inner chamber, 70-shell inner cavity.
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 Figure 1, a kind of twin shaft magnetic fluid seal device, comprise coaxial shell 40, magnetic seal parts 30, transmission shaft 10 and bearing 20, magnetic seal parts 30 are located at the both sides of transmission shaft 10, bearing 20 is located at the two ends of magnetic seal parts 30, transmission shaft 10 comprises intermediate solid drive shaft 11 and outer transmission shaft 12, intermediate solid drive shaft 11 is worn and is penetrated outer transmission shaft 12, bearing 20 comprises intermediate solid drive shaft bearing 21 and outer transmission shaft bearing 22, and magnetic seal parts 30 comprise intermediate solid drive shaft magnetic seal parts 31 and outer transmission shaft magnetic seal parts 32.
Upside between intermediate solid drive shaft 11 and outer transmission shaft 12 and downside are respectively provided with a HALF OPENING transmission inner chamber 60, in transmission inner chamber 60, be provided with intermediate solid drive shaft magnetic seal parts 31, intermediate solid drive shaft bearing 21 is located at the both sides of intermediate solid drive shaft magnetic seal parts 31, in order to seal fixed conveyor inner chamber 60.
Upside between outer transmission shaft 12 and coaxial shell 40 and downside are respectively provided with half open enclosure inner chamber 70, in shell inner cavity 70, be provided with outer transmission shaft magnetic seal parts 32, outer transmission shaft bearing 22 is located at the both sides of outer transmission shaft magnetic seal parts 32, in order to seal set casing inner chamber 70.
Also comprise top cover 50, transmission inner chamber 60 is respectively provided with top cover 50 with intermediate solid drive shaft bearing 21 and outer transmission shaft bearing 22 ends of shell inner cavity 70 atmosphere one sides along position, top cover 54 is fastened in order to support the pressure that run up middle transmission inner chamber 60 and shell inner cavity 70 bear; The intermediate solid drive shaft bearing 21 of transmission inner chamber 60 and shell inner cavity 70 vacuum one sides and outer transmission shaft bearing 22 are near transmission inner chamber 60 inwalls and shell inner cavity 70 inwalls.
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. a twin shaft magnetic fluid seal device, comprise coaxial shell (40), magnetic seal parts (30), transmission shaft (10) and bearing (20), described magnetic seal parts (30) are located at the both sides of transmission shaft (10), described bearing (20) is located at the two ends of magnetic seal parts (30), it is characterized in that: described transmission shaft (10) comprises intermediate solid drive shaft (11) and outer transmission shaft (12), described intermediate solid drive shaft (11) is worn and is penetrated outer transmission shaft (12), described bearing (20) comprises intermediate solid drive shaft bearing (21) and outer transmission shaft bearing (22), described magnetic seal parts (30) comprise intermediate solid drive shaft magnetic seal parts (31) and outer transmission shaft magnetic seal parts (32).
2. a kind of twin shaft magnetic fluid seal device according to claim 1, it is characterized in that: the upside between described intermediate solid drive shaft (11) and outer transmission shaft (12) and downside are respectively provided with a HALF OPENING transmission inner chamber (60), in described transmission inner chamber (60), be provided with intermediate solid drive shaft magnetic seal parts (31), described intermediate solid drive shaft bearing (21) is located at the both sides of intermediate solid drive shaft magnetic seal parts (31), in order to seal fixed conveyor inner chamber (60).
3. a kind of twin shaft magnetic fluid seal device according to claim 1, it is characterized in that: upside and downside between described outer transmission shaft (12) and coaxial shell (40) are respectively provided with half open enclosure inner chamber (70), in described shell inner cavity (70), be provided with outer transmission shaft magnetic seal parts (32), described outer transmission shaft bearing (22) is located at the both sides of outer transmission shaft magnetic seal parts (32), in order to seal set casing inner chamber (70).
4. a kind of twin shaft magnetic fluid seal device according to claim 1, it is characterized in that: also comprise top cover (50), the intermediate solid drive shaft bearing (21) of described transmission inner chamber (60) and shell inner cavity (70) atmosphere one side and outer transmission shaft bearing (22) end are respectively provided with top cover (50) along position, described top cover (50) is fastened in order to support the pressure that run up middle transmission inner chamber (60) and shell inner cavity (70) bear.
5. a kind of twin shaft magnetic fluid seal device according to claim 1, is characterized in that: the intermediate solid drive shaft bearing (21) of described transmission inner chamber (60) and shell inner cavity (70) vacuum one side and outer transmission shaft bearing (22) are near transmission inner chamber (60) inwall and shell inner cavity (70) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185965.8U CN203796966U (en) | 2014-04-17 | 2014-04-17 | Double-shaft magnetic fluid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185965.8U CN203796966U (en) | 2014-04-17 | 2014-04-17 | Double-shaft magnetic fluid sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796966U true CN203796966U (en) | 2014-08-27 |
Family
ID=51379178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420185965.8U Expired - Fee Related CN203796966U (en) | 2014-04-17 | 2014-04-17 | Double-shaft magnetic fluid sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412288A (en) * | 2019-12-11 | 2020-07-14 | 杭州大和热磁电子有限公司 | Integrated multi-shaft magnetic fluid sealing device |
-
2014
- 2014-04-17 CN CN201420185965.8U patent/CN203796966U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412288A (en) * | 2019-12-11 | 2020-07-14 | 杭州大和热磁电子有限公司 | Integrated multi-shaft magnetic fluid sealing device |
| CN111412288B (en) * | 2019-12-11 | 2022-03-25 | 杭州大和热磁电子有限公司 | Integrated multi-shaft magnetic fluid sealing device |
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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: 20140827 Termination date: 20190417 |