CN207093761U - A kind of Novel shaft dynamic sealing device - Google Patents
A kind of Novel shaft dynamic sealing device Download PDFInfo
- Publication number
- CN207093761U CN207093761U CN201720577763.1U CN201720577763U CN207093761U CN 207093761 U CN207093761 U CN 207093761U CN 201720577763 U CN201720577763 U CN 201720577763U CN 207093761 U CN207093761 U CN 207093761U
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- pressure pad
- sealing
- magnetic
- magnetic fluid
- stroke
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Abstract
The utility model discloses a kind of Novel shaft dynamic sealing device, it is characterized in that, including the stroke seal modules set between the rotatory sealing module set between magnetic fluid and housing and axle and magnetic fluid, wherein, the stroke seal modules then include pressure pad one, sealing ring one, spacer, guide sleeve, pressure pad two, the pressure pad one, sealing ring one, spacer, guide sleeve, pressure pad two is arranged at magnetic fluid intermediate connection vacuum environment and atmospheric environment and is internally provided with the stroke passage of axle, the pressure pad one for seal shaft and magnetic fluid is provided with close to atmospheric environment one end in stroke passage, the pressure pad two for seal shaft and magnetic fluid is provided with close to vacuum environment one end in stroke passage.The Novel shaft dynamic sealing device by by the reasonable Arrangement of magnetic fluid and double sealing circle, guide sleeve come realize axle from low speed to high speed rotate smoothly and the axial movement of big stroke in sealing.
Description
Technical field
It the utility model is related to axle dynamic sealing device field, and in particular to a kind of Novel shaft dynamic sealing device.
Background technology
Vacuum drying oven is discharged furnace chamber internal gas using vacuum system in furnace chamber this particular space so that in furnace chamber
Pressure is less than a standard pressure, and the device heated under the vacuum environment.The stage needs to carry out for some now
The workpiece of rotary heating, not only need to set corresponding rotating device in vacuum drying oven, it is also necessary to set the promotion dress for taking out workpiece
Put, thus need it is a kind of can not only rotate smoothly again can stroke axial movement greatly device, and need to set in the device
Outside vacuum environment, avoid it from tying up furnace chamber space, need to carry out encapsulation process to the device for this, avoid extraneous gas from entering
Row furnace chamber and influence the handling process of workpiece.
Utility model content
The purpose of this utility model is to provide a kind of Novel shaft dynamic sealing device, by by magnetic fluid and double sealing
Circle, guide sleeve reasonable Arrangement come realize axle from low speed to high speed rotate smoothly and the axial movement of big stroke in
Sealing.
To achieve the above object, the utility model provides following technical scheme：A kind of Novel shaft dynamic sealing device, its feature
It is, including the stroke sealed mould set between the rotatory sealing module and axle and magnetic fluid set between magnetic fluid and housing
Block, wherein, the stroke seal modules then include pressure pad one, sealing ring one, spacer, guide sleeve, pressure pad two, the pressure pad one,
Sealing ring one, spacer, guide sleeve, pressure pad two are arranged at magnetic fluid intermediate connection vacuum environment and atmospheric environment and internal setting
Have in the stroke passage of axle, the pressure pad one for seal shaft and magnetic fluid be provided with close to atmospheric environment one end in stroke passage,
The pressure pad two for seal shaft and magnetic fluid is provided with close to vacuum environment one end in stroke passage, and in the pressure pad of stroke passage
Sealing ring one, spacer, guide sleeve are also disposed between one and pressure pad two, and is arranged on sealing ring one, spacer, guide sleeve
It is interior.
Preferably, the rotatory sealing module uses magnet fluid sealing, including for magnetic fluid base and housing contact surface
The sealing ring two of sealing and the magnet fluid sealing module sealed for magnetic current body sidewall and housing contact surface, the magnetic fluid are close
Envelope module includes the bearing being arranged between housing and magnetic current body sidewall, and the bearing is provided with interval close to atmospheric environment side
Circle one, the top of space collar one are provided with magnetic loop, and the magnetic loop includes two pole shoes, is provided with forever between two pole shoes
Magnet, and each pole shoe is then provided with magnetic liquid with magnetic current body sidewall contact surface, is made up of two pole shoes, a permanent magnet
One magnetic loop, the O-ring seal of a liquid is formed between pole shoe and housing by magnetic loop.
Preferably, space collar two is set above the magnetic loop, and the top of space collar two is provided with pressure pad three.
Compared with prior art, the beneficial effects of the utility model are as follows：
A kind of Novel shaft dynamic sealing device includes the seal modules of two aspects, is respectively
For the stroke seal modules between seal shaft and magnetic fluid, the trip seal modules use arranges pressure pad up and down
Form enters vacuum environment to completely cut off gas in atmospheric environment, and sealing ring one is disposed between two pressure pads to strengthen sealing
Effect, the transmission being disposed with beneficial to axle of guide pipe, pipe then avoid guide pipe by axle induced effect sealing effectiveness；
For sealing the rotatory sealing module between magnetic fluid and housing, the rotatory sealing module utilizes pressure pad three and sealing
The combination of circle two enters vacuum environment to completely cut off gas in atmospheric environment, and bearing is then disposed between magnetic current body sidewall and housing,
The stable type of magnetic fluid rotation is ensured using bearing, and the magnetic loop set thereon, is then to utilize pole shoe, permanent magnet, magnetic
Liquid forms the O-ring seal of a liquid, and such a sealing can not only be effectively reduced the friction between magnetic fluid and housing
Power, rotating speed is improved, and it is simple in construction, it is easy to maintenance.
Brief description of the drawings
Fig. 1 provides a kind of schematic diagram of Novel shaft dynamic sealing device for the utility model；
Fig. 2 provides a kind of schematic diagram of rotatory sealing module in Novel shaft dynamic sealing device for the utility model；
Fig. 3 is the enlarged diagram at A in Fig. 2.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：The Novel shaft dynamic sealing device, including two sides
Set between the rotatory sealing module and axle 3 and magnetic fluid 2 that are set between the seal modules in face, respectively magnetic fluid 2 and housing 1
The stroke seal modules put.
Wherein, the stroke seal modules then include pressure pad 1, sealing ring 1, spacer 6, guide sleeve 7, pressure pad 28, institute
State pressure pad 1, sealing ring 1, spacer 6, guide sleeve 7, pressure pad 28 be arranged at the intermediate connection vacuum environment of magnetic fluid 2 with it is big
Compression ring border and it is internally provided with the stroke passage 9 of axle 3, is provided with stroke passage 9 close to atmospheric environment one end for sealing
The pressure pad 1 of axle 3 and magnetic fluid 2, it is provided with stroke passage 9 close to vacuum environment one end for seal shaft 3 and magnetic fluid 2
Pressure pad 28, and also it is disposed with sealing ring 1, spacer 6, guide sleeve between the pressure pad 1 and pressure pad 28 of stroke passage 9
7, and it is arranged on sealing ring 1, spacer 6, in guide sleeve 7.The trip seal modules using up and down arrangement pressure pad in the form of come every
Gas enters vacuum environment in exhausted atmospheric environment, and sealing ring 1 is disposed between two pressure pads to strengthen sealing effectiveness, leads
The transmission being disposed with beneficial to axle 3 to pipe, pipe then avoid guide pipe by the induced effect sealing effectiveness of axle 3.
The rotatory sealing module uses magnet fluid sealing, including sealed for the base of magnetic fluid 2 and the contact surface of housing 1
Sealing ring 2 10 and the magnet fluid sealing module sealed for the side wall of magnetic fluid 2 and the contact surface of housing 1, the magnetic fluid are close
Envelope module includes the bearing 11 being arranged between housing 1 and the side wall of magnetic fluid 2, and the bearing 11 is set close to atmospheric environment side
There is a space collar 1, the top of space collar 1 is provided with magnetic loop 13, and the magnetic loop 13 includes two pole shoes 14, two
Permanent magnet 15 is provided between pole shoe 14, and each pole shoe 14 is then provided with magnetic liquid 16 with the side wall contact surface of magnetic fluid 2, leads to
Cross two pole shoes, 14, permanent magnets 15 and form a magnetic loop 13, formed by magnetic loop 13 between pole shoe 14 and housing 1
The O-ring seal 17 of one liquid.The top of magnetic loop 13 sets space collar 2 18, and the top of space collar 2 18 is provided with pressure
Pad 3 19.The rotatory sealing module is combined using pressure pad 3 19 with sealing ring 2 10 enters vacuum to completely cut off gas in atmospheric environment
Environment, and bearing 11 is then disposed between the side wall of magnetic fluid 2 and housing 1, the stabilization of the rotation of magnetic fluid 2 is ensured using bearing 11
Type, and the magnetic loop 13 set thereon, then it is to form the O-shaped close of liquid using pole shoe 14, permanent magnet 15, magnetic liquid 16
Seal 17, such a sealing can not only be effectively reduced the frictional force between magnetic fluid 2 and housing 1, improve rotating speed, and structure
Simply, it is easy to maintenance.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of Novel shaft dynamic sealing device, it is characterised in that including the rotatory sealing module set between magnetic fluid and housing
And the stroke seal modules set between axle and magnetic fluid, wherein, the stroke seal modules then include pressure pad one, sealing ring
First, spacer, guide sleeve, pressure pad two, the pressure pad one, sealing ring one, spacer, guide sleeve, pressure pad two are arranged in magnetic fluid
Between connect vacuum environment and atmospheric environment and be internally provided with the stroke passage of axle, in stroke passage close to atmospheric environment one end
Be provided with the pressure pad one for seal shaft and magnetic fluid, stroke passage close to vacuum environment one end be provided with for seal shaft with
The pressure pad two of magnetic fluid, and also it is disposed with sealing ring one, spacer, guiding between the pressure pad one and pressure pad two of stroke passage
Set, and it is arranged on sealing ring one, spacer, in guide sleeve.
2. a kind of Novel shaft dynamic sealing device according to claim 1, it is characterised in that the rotatory sealing module uses
Magnet fluid sealing, including for magnetic fluid base with the sealing ring two of housing contact surface sealing and for magnetic current body sidewall and shell
The magnet fluid sealing module of contact level sealing, the magnet fluid sealing module include being arranged between housing and magnetic current body sidewall
Bearing, the bearing is provided with space collar one close to atmospheric environment side, and the top of space collar one is provided with magnetic loop, institute
Stating magnetic loop includes two pole shoes, and permanent magnet is provided between two pole shoes, and each pole shoe and magnetic current body sidewall contact surface are then
Be provided with magnetic liquid, a magnetic loop formed by two pole shoes, permanent magnet, by magnetic loop pole shoe and housing it
Between formed a liquid O-ring seal.
3. a kind of Novel shaft dynamic sealing device according to claim 2, it is characterised in that between being set above the magnetic loop
Spacer ring two, and the top of space collar two is provided with pressure pad three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577763.1U CN207093761U (en) | 2017-05-23 | 2017-05-23 | A kind of Novel shaft dynamic sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577763.1U CN207093761U (en) | 2017-05-23 | 2017-05-23 | A kind of Novel shaft dynamic sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093761U true CN207093761U (en) | 2018-03-13 |
Family
ID=61550892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720577763.1U Active CN207093761U (en) | 2017-05-23 | 2017-05-23 | A kind of Novel shaft dynamic sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163550A (en) * | 2018-08-14 | 2019-01-08 | 沈阳广泰真空科技有限公司 | Vacuum drying oven |
-
2017
- 2017-05-23 CN CN201720577763.1U patent/CN207093761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163550A (en) * | 2018-08-14 | 2019-01-08 | 沈阳广泰真空科技有限公司 | Vacuum drying oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 110172 No. 599 Tongcheng Road, Shenfu demonstration zone, Shenyang, Liaoning Patentee after: Shenyang Guangtai Vacuum Technology Co.,Ltd. Address before: 110000 Tongcheng Road 599, Dongling District, Shenyang City, Liaoning Province Patentee before: SHENYANG GUANGTAI VACUUM TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |