CN207333721U - A kind of high vacuum device for sealing magnetic fluid - Google Patents
A kind of high vacuum device for sealing magnetic fluid Download PDFInfo
- Publication number
- CN207333721U CN207333721U CN201721410297.4U CN201721410297U CN207333721U CN 207333721 U CN207333721 U CN 207333721U CN 201721410297 U CN201721410297 U CN 201721410297U CN 207333721 U CN207333721 U CN 207333721U
- Authority
- CN
- China
- Prior art keywords
- face
- pole shoe
- jackshaft
- magnetic fluid
- anchor ring
- 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
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
It the utility model is related to sealing field of mechanical engineering, and in particular to a kind of high vacuum device for sealing magnetic fluid, including multi-diameter shaft, shell, left pole shoe, right pole shoe, magnet ring；The multi-diameter shaft includes multigroup secondary axis that the jackshaft of diameter maximum and diameter are sequentially reduced；The position that jackshaft periphery is corresponded on the inner wall of the shell is provided with magnet ring；The left pole shoe, right pole shoe are respectively arranged on magnet ring both sides, and left pole shoe, right pole shoe are symmetrical；Left pole shoe, the end face of right pole shoe and the anchor ring with respectively with the periphery and end face of jackshaft and secondary axis to corresponding；It is respectively equipped with the end face of the jackshaft, and the periphery of secondary axis and end face radially or axially extending pole tooth, gap is left between the pole tooth and the end face on corresponding left pole shoe, right pole shoe and anchor ring, magnetic fluid is located in the gap.The utility model can solve the problems such as pressure-resistant performance existing for existing sealing device is relatively low.
Description
Technical field
The utility model belongs to sealing field of mechanical engineering, and in particular to a kind of high vacuum device for sealing magnetic fluid.
Background technology
When magnetic fluid seal technology is applied in high vacuum environment, the unreasonable design of common magnetic fluid sealing structure is past
Pressure-resistant performance toward the failure for causing sealing, therefore raising high vacuum operating mode magnetic Fluid Sealing is that the hot spot of current research is asked
One of topic.
One of method for improving the pressure-resistant performance of high vacuum environment magnetic Fluid Sealing is by improving magnetic fluid seal
Structure, the 2 (publication number of sealing device and documents as described in documents 1 (patent of Publication No. CN204805552U)
For the patent of CN104948744A) described in sealing device.Although existing sealing structure disclosure satisfy that in conventional vacuum environment
The demand of vacuum equipment, but its sealing performance does not reach high vacuum operating mode height compared with high sealing reliability requirement.
Magnet fluid sealing is to produce magnetic field force in seal clearance using permanent magnet magnetic fluid is secured firmly between sealing
In gap, the pressure difference of both sides is resisted, so as to reach the effect of sealing.
Utility model content
The purpose of this utility model is to provide a kind of high vacuum device for sealing magnetic fluid, so as to solve existing sealing device
The problems such as existing pressure-resistant performance is relatively low so that the sealing technique is successfully applied in the fields such as high vacuum.
The technical solution of the utility model is as follows：
The high vacuum device for sealing magnetic fluid, including multi-diameter shaft, shell, left pole shoe, right pole shoe, magnet ring,
The multi-diameter shaft is set within shell；
The multi-diameter shaft includes multigroup secondary axis that the jackshaft of diameter maximum and diameter are sequentially reduced, the secondary
Axis is arranged along the side of jackshaft, symmetrical to demarcate using the intermediate radial section of jackshaft；
The position that jackshaft periphery is corresponded on the inner wall of the shell is provided with magnet ring, the magnet ring
Gap is left between jackshaft periphery；The left pole shoe, right pole shoe are respectively arranged on magnet ring both sides, left pole shoe, the right side
Pole shoe is symmetrical；Left pole shoe, the end face of right pole shoe and the anchor ring periphery and end with jackshaft or secondary axis respectively
Face is corresponding；It is respectively equipped with the end face of the jackshaft, and the periphery of secondary axis and end face radially or axial
The pole tooth of extension, leaves gap, magnetic current position between the pole tooth and the end face on corresponding left pole shoe, right pole shoe and anchor ring
In in the gap.
The quantity of the secondary axis is 2-10 groups.
The secondary axis includes two level axis and three-level axis, and the left and right sides of the jackshaft sets gradually two level respectively
Axis and three-level axis, the jackshaft, two level axis, the diameter of three-level axis are sequentially reduced；
Anchor ring I, end face I, anchor ring II, end face II, anchor ring are respectively equipped with the left pole shoe and right pole shoe
III；
The anchor ring I is corresponding with the periphery of three-level axis, and sky is left between the anchor ring I and three-level axis
Gap；The periphery of the three-level axis is equipped with pole tooth I；The pole tooth I radially to anchor ring I extend, with anchor ring I it
Between leave gap, magnetic fluid is placed in the gap；
The end face I is corresponding with the end face of two level axis, and the anchor ring II is corresponding with the periphery of two level axis；
The end face of the two level axis is equipped with pole tooth II；The pole tooth II extends to end face I vertically, between being left between the I of end face
Gap, magnetic fluid are placed in the gap；The periphery of the two level axis is equipped with pole tooth III, the pole tooth III radially to
Anchor ring II extends, and gap is left between anchor ring II, magnetic fluid is placed in the gap；
The end face II is corresponding with the end face of jackshaft, and the anchor ring III is opposite with the periphery of jackshaft
Should；The end face of the jackshaft is equipped with pole tooth IV, and the pole tooth IV extends to end face II vertically, between the II of end face
Gap is left, magnetic fluid is placed in the gap；Gap is left between the periphery and anchor ring III of the jackshaft.
The secondary axis further includes three-ten grades of axis that diameter successively decreases successively, and left pole shoe and right pole shoe are correspondingly arranged；Three-
Pole tooth and left pole shoe and the corresponding set-up mode of right pole shoe are consistent with foregoing expression way on ten grades of axis.
The pole tooth I, pole tooth II, pole tooth III, pole tooth IV respectively by spaced 3 ~ 5 pole tooth groups into.
The high vacuum device for sealing magnetic fluid, further includes left magnetism-isolating loop and right magnetism-isolating loop；The left magnetism-isolating loop
Arranged on the left side of left pole shoe, the inner wall for being close to shell is set；The right magnetism-isolating loop is arranged on the left side of right pole shoe, is close to shell
Inner wall is set.
The high vacuum device for sealing magnetic fluid, further includes left bearing and right bearing, and the left bearing is arranged on a left side
The left side of magnetism-isolating loop, is set on multi-diameter shaft；The right bearing is arranged on the right side of right magnetism-isolating loop, is set on multi-diameter shaft.
Groove is respectively equipped with the left pole shoe and the periphery of right pole shoe, the groove is equipped with sealing ring.
The utility model is opened up axially and radially by designing a kind of staged shaft and staged pole shoe on multi-diameter shaft
The pole tooth of distribution, and magnetic fluid is injected in the radial and axial seal clearance that pole shoe and multi-diameter shaft are formed, so as to form one kind
Multi-faceted assemblied stereo sealing, so as to fulfill a kind of high vacuum magnet fluid sealing, can be good at tackling condition of high vacuum degree
In the case of magnet fluid sealing.
The specific multi-diameter shaft and pole shoe of the utility model preferred solution, the setting structure of pole tooth, can preferably realize more
The technique effect of the assemblied stereo sealing in orientation, and can realize and the permanent magnet magnetic line of force is efficiently used, it is only necessary to one
Group permanent magnet, it becomes possible to realize good high vacuum seal effect, cost is lower.
The utility model overcomes existing sealing device can not realize the problem that the special operation condition such as high vacuum sealing performance requires,
Using the sealing device, manufacture cost is not only saved, has reduced difficulty of processing, greatly reduced the magnetic flow in seal failure
The loss of body, further improves the voltage endurance capability and sealing reliability of high vacuum magnetic fluid seal, expands its peace
Full operating range.
Brief description of the drawings
Fig. 1 is the structure diagram of sealing device described in the utility model;
Each sequence number sign and corresponding title are as follows in figure：
1- multi-diameter shafts 1,2- shells, the left pole shoes of 3-, the right pole shoes of 4-, 5- magnet rings, 6- anchor rings I, 7- end face I, 8- circle
Anchor ring II, 9- end face II, 10- anchor rings III, 11- pole tooth I, 12- poles tooth II, 13- poles tooth III, 14- poles tooth IV, a 15- left sides every
Magnet ring, the right magnetism-isolating loops of 16-, 17- left bearings, 18- right bearings, 19- grooves 19,20- sealing rings；
101- jackshafts, 102- two level axis, 103- three-level axis.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the high vacuum device for sealing magnetic fluid, including multi-diameter shaft 1, shell 2, left pole shoe 3, right pole
Boots 4, magnet ring 5, the multi-diameter shaft 1 are set within shell 2；
The multi-diameter shaft 1 includes multigroup secondary axis that the jackshaft 101 of diameter maximum and diameter are sequentially reduced, described
Secondary axis is arranged along the side of jackshaft 101, symmetrical to demarcate using the intermediate radial section of jackshaft 101；
The position that 101 periphery of jackshaft is corresponded on the inner wall of the shell 2 is provided with magnet ring 5, it is described forever
Gap is left between 101 periphery of magnet ring 5 and jackshaft；The left pole shoe 3, right pole shoe 4 are respectively arranged on 5 liang of magnet ring
Side, left pole shoe 3, right pole shoe 4 are symmetrical；Left pole shoe 3, the end face of right pole shoe 4 and the anchor ring respectively with jackshaft 101 or
The periphery of secondary axis and end face are corresponding；Divide on the end face of the jackshaft 101, and the periphery of secondary axis and end face
She You not radially or axially extending pole tooth, the pole tooth and the end face on corresponding left pole shoe 3, right pole shoe 4 and ring
Gap is left between face, magnetic fluid is located in the gap.
The quantity of the secondary axis is 2-10 groups.
The secondary axis includes two level axis 102 and three-level axis 103, the left and right sides of the jackshaft 101 respectively according to
Secondary setting two level axis 102 and three-level axis 103, the jackshaft 101, two level axis 102, the diameter of three-level axis 103 are sequentially reduced；
Anchor ring I6, end face I7, anchor ring II8, end face II9, circle are respectively equipped with the left pole shoe 3 and right pole shoe 4
Anchor ring III10；
The anchor ring I6 is corresponding with the periphery of three-level axis 103, between the anchor ring I6 and three-level axis 103
Leave gap；The periphery of the three-level axis 103 is equipped with pole tooth I11；The pole tooth I11 radially prolongs to anchor ring I6
Stretch, gap is left between anchor ring I6, magnetic fluid is placed in the gap；
The end face I7 is corresponding with the end face of two level axis 102, and the anchor ring II8 is cylindrical with two level axis 102
Face is corresponding；The end face of the two level axis 102 is equipped with pole tooth II12；The pole tooth II12 extends to end face I7 vertically,
Gap is left between the I7 of end face, magnetic fluid is placed in the gap；The periphery of the two level axis 102 is equipped with pole tooth
III13, the pole tooth III13 radially extend to anchor ring II8, gap are left between anchor ring II8, magnetic fluid is placed in
In the gap；
The end face II9 is corresponding with the end face of jackshaft 101, and the anchor ring III10 is outer with jackshaft 101
Disc is corresponding；The end face of the jackshaft 101 is equipped with pole tooth IV 14, and the pole tooth IV 14 is vertically to end face II9
Extension, leaves gap, magnetic fluid is placed in the gap between the II9 of end face；The periphery and annulus of the jackshaft 101
Gap is left between the III10 of face.
The pole tooth I11, pole tooth II12, pole tooth III13, pole tooth IV 14 respectively by spaced 3 pole tooth groups into.
The high vacuum device for sealing magnetic fluid, further includes left magnetism-isolating loop 15 and right magnetism-isolating loop 16；It is described it is left every
Magnet ring 15 is arranged on the left side of left pole shoe 3, and the inner wall for being close to shell 2 is set；The right magnetism-isolating loop 16 is arranged on a left side for right pole shoe 4
Side, the inner wall for being close to shell 2 are set.
The high vacuum device for sealing magnetic fluid, further includes left bearing 17 and right bearing 18, the left bearing 17
Arranged on the left side of left magnetism-isolating loop 15, it is set on multi-diameter shaft 1；The right bearing 18 is arranged on the right side of right magnetism-isolating loop 16, suit
In on multi-diameter shaft 1.
Groove 19 is respectively equipped with the left pole shoe 3 and the periphery of right pole shoe 4, the groove 19 is equipped with sealing ring
20。
Claims (8)
1. a kind of high vacuum device for sealing magnetic fluid, including multi-diameter shaft（1）, shell（2）, left pole shoe（3）, right pole shoe（4）, forever
Magnet ring（5）, the multi-diameter shaft（1）It is set in shell（2）Within, it is characterised in that：
The multi-diameter shaft（1）Include the jackshaft of diameter maximum（101）The multigroup secondary axis being sequentially reduced with diameter, it is described
Secondary axis is along jackshaft（101）Side arrangement, with jackshaft（101）Intermediate radial section for demarcate it is symmetrical；
The shell（2）Inner wall on correspond to jackshaft（101）The position of periphery is provided with magnet ring（5）, it is described
Magnet ring（5）With jackshaft（101）Gap is left between periphery；The left pole shoe（3）, right pole shoe（4）It is respectively arranged on
Magnet ring（5）Both sides, left pole shoe（3）, right pole shoe（4）Symmetrically；The left pole shoe（3）, right pole shoe（4）End face and
Anchor ring respectively with jackshaft（101）Or the periphery of secondary axis and end face it is corresponding；The jackshaft（101）End face, with
And it is respectively equipped with the periphery of secondary axis and end face radially or axially extending pole tooth, the pole tooth and a corresponding left side
Pole shoe（3）, right pole shoe（4）On end face and anchor ring between leave gap, magnetic fluid is located in the gap.
2. high vacuum device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：The quantity of the secondary axis is
2-10 groups.
3. high vacuum device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：
The secondary axis includes two level axis（102）With three-level axis（103）, the jackshaft（101）The left and right sides difference
Set gradually two level axis（102）With three-level axis（103）, the jackshaft（101）, two level axis（102）, three-level axis（103）'s
Diameter is sequentially reduced；
The left pole shoe（3）With right pole shoe（4）On be respectively equipped with anchor ring I（6）, end face I（7）, anchor ring II（8）, end face
II（9）, anchor ring III（10）；
The anchor ring I（6）With three-level axis（103）Corresponding, the described anchor ring I of periphery（6）With three-level axis（103）
Between leave gap；The three-level axis（103）Periphery be equipped with pole tooth I（11）；The pole tooth I（11）Radially to
Anchor ring I（6）Extension, with anchor ring I（6）Between leave gap, magnetic fluid is placed in the gap；
The end face I（7）With two level axis（102）Corresponding, the described anchor ring II in end face（8）With two level axis（102）'s
Periphery is corresponding；The two level axis（102）End face be equipped with pole tooth II（12）；The pole tooth II（12）Vertically to end
Face I（7）Extension, with end face I（7）Between leave gap, magnetic fluid is placed in the gap；The two level axis（102）It is cylindrical
Face is equipped with pole tooth III（13）, the pole tooth III（13）Radially to anchor ring II（8）Extension, with anchor ring II（8）It
Between leave gap, magnetic fluid is placed in the gap；
The end face II（9）With jackshaft（101）Corresponding, the described anchor ring III in end face（10）With jackshaft（101）
Periphery it is corresponding；The jackshaft（101）End face be equipped with pole tooth IV（14）, the pole tooth IV（14）Vertically
To end face II（9）Extension, with end face II（9））Between leave gap, magnetic fluid is placed in the gap；The jackshaft（101）
Periphery and anchor ring III（10）Between leave gap.
4. high vacuum device for sealing magnetic fluid as claimed in claim 3, it is characterised in that：The secondary axis further includes directly
Three-ten grades of axis that footpath is successively decreased successively, left pole shoe（3）With right pole shoe（4）It is correspondingly arranged；Pole tooth and left pole shoe on three-ten grades of axis（3）
With right pole shoe（4）Corresponding set-up mode is consistent with the mode of claim 3.
5. high vacuum device for sealing magnetic fluid as claimed in claim 3, it is characterised in that：The pole tooth I（11）, pole tooth
II（12）, pole tooth III（13）, pole tooth IV（14）Respectively by spaced 3-5 pole tooth groups into.
6. the high vacuum device for sealing magnetic fluid as described in claim 3 or 5, it is characterised in that：Further include left magnetism-isolating loop
（15）With right magnetism-isolating loop（16）；The left magnetism-isolating loop（15）Arranged on left pole shoe（3）Left side, be close to shell（2）Inner wall set
Put；The right magnetism-isolating loop（16）Arranged on right pole shoe（4）Left side, be close to shell（2）Inner wall set.
7. high vacuum device for sealing magnetic fluid as claimed in claim 6, it is characterised in that：Further include left bearing（17）And the right side
Bearing（18）, the left bearing（17）Arranged on left magnetism-isolating loop（15）Left side, be set in multi-diameter shaft（1）On；The right axle
Hold（18）Arranged on right magnetism-isolating loop（16）Right side, be set in multi-diameter shaft（1）On.
8. high vacuum device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：The left pole shoe（3）And the right side
Pole shoe（4）Periphery on be respectively equipped with groove（19）, the groove（19）Equipped with sealing ring（20）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721410297.4U CN207333721U (en) | 2017-10-30 | 2017-10-30 | A kind of high vacuum device for sealing magnetic fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721410297.4U CN207333721U (en) | 2017-10-30 | 2017-10-30 | A kind of high vacuum device for sealing magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333721U true CN207333721U (en) | 2018-05-08 |
Family
ID=62364062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721410297.4U Expired - Fee Related CN207333721U (en) | 2017-10-30 | 2017-10-30 | A kind of high vacuum device for sealing magnetic fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019085505A1 (en) * | 2017-10-30 | 2019-05-09 | 广西科技大学 | Magnetic fluid sealing device for high vacuum |
-
2017
- 2017-10-30 CN CN201721410297.4U patent/CN207333721U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019085505A1 (en) * | 2017-10-30 | 2019-05-09 | 广西科技大学 | Magnetic fluid sealing device for high vacuum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107620799A (en) | A kind of high vacuum device for sealing magnetic fluid | |
| CN105570466B (en) | A kind of symmetric form staged magnetic fluid seal device | |
| CN107725785A (en) | A kind of new staged device for sealing magnetic fluid | |
| CN108006232A (en) | A kind of mixed type labyrinth type device for sealing magnetic fluid | |
| CN109764138B (en) | Embedded labyrinth type magnetic fluid sealing device | |
| CN101513546B (en) | Hydrodynamic suspension bearing for artificial heart | |
| CN106015585B (en) | A kind of floating ring device for sealing magnetic fluid | |
| CN107956882B (en) | Multistage disc magnetic fluid sealing device | |
| CN107893853B (en) | Convex step shaft magnetic fluid sealing device | |
| CN207609778U (en) | A kind of dome camber device for sealing magnetic fluid | |
| CN207333721U (en) | A kind of high vacuum device for sealing magnetic fluid | |
| CN108006231A (en) | A kind of parallel connection type magnetic fluid reciprocating sealing device | |
| CN207554797U (en) | A kind of telescopic device for sealing magnetic fluid of mixed type | |
| CN107740866A (en) | A kind of staged device for sealing magnetic fluid | |
| CN205824190U (en) | A kind of notch cuttype end-surface type magnetic fluid seal device | |
| CN207539343U (en) | A kind of recessed multi-diameter shaft device for sealing magnetic fluid | |
| CN109027254A (en) | A kind of embedded tandem type multi-diameter shaft device for sealing magnetic fluid of magnetic source | |
| CN207740466U (en) | A kind of multistage disk device for sealing magnetic fluid | |
| CN106122285A (en) | A kind of circular cone type device for sealing magnetic fluid | |
| CN207569209U (en) | A kind of novel staged device for sealing magnetic fluid | |
| CN107740865A (en) | A kind of cross staged device for sealing magnetic fluid | |
| CN106594289B (en) | A kind of high linear speed spin magnetization liquid sealing device of radial direction small size | |
| CN108843792B (en) | Symmetrical step-type magnetic fluid sealing device | |
| CN208793628U (en) | A kind of magnetic source alternating expression socket type device for sealing magnetic fluid | |
| CN205877002U (en) | Labyrinth device for sealing magnetic fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180508 Termination date: 20191030 |