CN206092708U - Bearing cap device for sealing magnetic fluid - Google Patents
Bearing cap device for sealing magnetic fluid Download PDFInfo
- Publication number
- CN206092708U CN206092708U CN201621045346.4U CN201621045346U CN206092708U CN 206092708 U CN206092708 U CN 206092708U CN 201621045346 U CN201621045346 U CN 201621045346U CN 206092708 U CN206092708 U CN 206092708U
- Authority
- CN
- China
- Prior art keywords
- shell
- pole shoe
- ring
- bearing cap
- shoe 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
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- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a mechanical engineering sealing technique field specifically indicates a bearing cap device for sealing magnetic fluid, including shell, bearing, end terminal ring, bearing cap, permanent magnet, the shell suit on the left end of axle, in the shell was located to the bearing, the bearing cap included annular slab and threaded ring, the external diameter of annular slab is greater than threaded ring's the external diameter and the internal diameter of shell, and threaded ring links into an integrated entity with the left end of annular slab, threaded ring's external diameter and the internal diameter of shell are consistent, and in threaded ring emboliaed the shell from the right -hand member of shell, threaded ring's internal surface was equipped with the internal thread, and the surface of end terminal ring is equipped with the external screw thread, and the external screw thread and threaded ring's the internal thread of end terminal ring are mutually supported, in the end terminal ring screw in threaded ring, the internal surface of end terminal ring with spool between leave the clearance, being close to axle punishment about the end terminal ring on the terminal surface and do not seting up a cassette, the permanent magnet is installed respectively in two cassettes. The utility model discloses a sealing device simple structure, sealing performance is reliable.
Description
Technical field
This utility model is related to mechanical engineering technical field of sealing technology, refers specifically to a kind of bearing cap device for sealing magnetic fluid.
Background technology
Magnet fluid sealing as which is without rigid friction, and good sealing effect and be widely used in all trades and professions.Common magnetic
Although fluid seal apparatus have zero leakage function, which is pressure, and performance is significantly reduced with the increase of seal clearance, therefore
There is provided the higher sealing device of a kind of simple structure, easy for installation and pressure performance to have great importance.Existing common magnetic current
Body sealing device sealing property under the conditions of wide arc gap is less, and black box is larger positioned at the space that middle part occupies, peace
Dress is more difficult；Bearing cap generally adopts felt-ring seal in addition, but when the shaft is rotated, the fretting wear between axle and felt collar causes
Seal failure is so as to causing the leakage of sealed medium.
The content of the invention
Defect of this utility model for prior art, there is provided a kind of simple structure, easy for installation, the axle of good seal performance
Hold lid device for sealing magnetic fluid.
The technical solution of the utility model is as follows：A kind of bearing cap device for sealing magnetic fluid, including shell, bearing, pole shoe
Ring, bearing cap, permanent magnet, on the left end of axle, described bearing is located inside the shell, described bearing cap to described outer cover suit
Including annular slab and threaded collar, the external diameter of described annular slab is more than the internal diameter of the external diameter and shell of threaded collar, threaded collar and ring
The left end of shape plate links into an integrated entity；The external diameter of described threaded collar is consistent with the internal diameter of shell, right-hand member of the threaded collar from shell
Inside the shell is inserted in, the inner surface of threaded collar is provided with female thread, and the outer surface of described pole shoe ring is provided with external screw thread, outside pole shoe ring
Screw thread is cooperated with the female thread of threaded collar, and pole shoe ring is screwed in threaded collar, between leaving between the inner surface and axle of pole shoe ring
Gap；A deck is opened up respectively at axle on the left and right end face of described pole shoe ring, and described permanent magnet is respectively arranged in two
In individual deck.
It is interference fit between the inwall of the outer wall and shell of described threaded collar.
Described permanent magnet is torus, or is the torus being spliced by polylith point lobe Magnet.
Dead slot of the described deck for circular ring type, consistent with the shape and size of permanent magnet, deck is by a side wall and bottom
Face connection composition, described bottom surface is the face of cylinder, the inner surface of the bottom surface of deck parallel to pole shoe ring, and the side wall of deck is annulus
Shape plane, the left and right both ends of the surface of the side wall of deck parallel to pole shoe ring.
Half of the diameter of described deck bottom surface less than or equal to pole shoe ring external diameter.
The right side of described pole shoe ring is provided with annular groove near the position of pole shoe ring outer wall, installs in annular groove
Rubber seal.
Axial length of the axial length of described pole shoe ring less than threaded collar.
Be located on described axle in the middle part of inside the shell and be provided with ladder, a bearing is respectively mounted in the left and right sides of ladder,
Bearing on the right side of ladder is contacted with the left end of threaded collar.
Described permanent magnet is radial magnetizing type permanent magnet, positioned at the magnetic line of force side of the permanent magnet of pole shoe ring or so both ends of the surface
To contrary.
Gap between described pole shoe ring inner surface and the outer wall of axle is 0.1mm-5mm.
Installation process of the present utility model is as follows：Bearing is installed on axle from the left side and right side of axle respectively, bearing is equal
The left and right sides of the ladder being close in the middle part of axle；Shell is installed on axle, shell covers bearing, and the inwall of shell left end is close to and is located at
Bearing on axle on the left of ladder；Rubber ring is installed in the annular groove of pole shoe ring right side, in the card of the pole shoe ring left and right sides
Permanent magnet is installed in seat, the pole orientation of the permanent magnet in the pole shoe ring of the left and right sides is made conversely, the inner ring surface in permanent magnet is noted
Enter magnetic fluid, pole shoe ring, threaded collar on the external screw thread and bearing cap of the outer surface of pole shoe ring are installed from the left side of bearing cap
Female thread is engaged；Again pole shoe ring and bearing cap are mounted on an axle from the right side of axle, the appearance surface cover of threaded collar on bearing cap
Load the inner surface of shell right-hand member, the left end of threaded collar is close on axle the bearing on the right side of ladder on bearing cap；Outside finally
Mounting screw in the screw hole of shell right-hand member and bearing cap, is fastened to bearing cap by screw.
This utility model is respectively provided with external screw thread and female thread in the inwall on the left of the outer ring surface, bearing cap of pole shoe ring, makes
Pole shoe ring and bearing cap are attached by screw thread, are not only connected firmly, it is to avoid moved axially between seal member, and can also
Effectively prevent sealing medium from leaking from the junction of seal member；Sealing device of the present utility model overcomes existing felt-ring seal to rub
Caused leakage problem is damaged in scouring, also overcomes the common device for sealing magnetic fluid sealing property of wide arc gap and sealing reliability is poor
A difficult problem, improve the voltage endurance capability and sealing reliability of magnet fluid sealing under the conditions of wide arc gap, expand its trouble free service
Scope；Sealing device structure of the present utility model is simple, it is easy to install.
Description of the drawings
Fig. 1 is the structural representation of sealing device described in the utility model
Structural representations of the Fig. 2 for pole shoe ring
In figure, sequence number and corresponding structure title are as follows：1- axles, 2- shells, 3- bearings, 4- pole shoe rings, 5- bearing caps, 51-
Annular slab, 52- threaded collars, 6- decks, the side wall of 61- decks, the bottom surface of 62- decks, 7- permanent magnets, 8- annular grooves, 9- spiral shells
Nail, 10- ladders.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is further described.
A kind of bearing cap device for sealing magnetic fluid as shown in Figure 1, including shell 2, bearing 3, pole shoe ring 4, bearing cap 5,
Permanent magnet 7, described shell 2 are sleeved on the left end of axle 1, and in shell 2, described bearing cap 5 includes described bearing 3
Annular slab 51 and threaded collar 52, the external diameter of described annular slab 51 are more than the internal diameter of the external diameter and shell 2 of threaded collar 52, threaded collar
52 are linked into an integrated entity with the left end of annular slab 51；The external diameter of described threaded collar 52 is consistent with the internal diameter of shell 2, threaded collar 52
It is inserted in shell 2 from the right-hand member of shell 2, the inner surface of threaded collar 52 is provided with female thread, and the outer surface of described pole shoe ring 4 is provided with
External screw thread, external screw thread and the female thread of threaded collar 52 of pole shoe ring 4 cooperate, and pole shoe ring 4 is screwed in threaded collar 52, pole shoe ring
Gap is left between 4 inner surface and axle 1；A deck is opened up respectively at axle 1 on the left and right end face of described pole shoe ring 4
6, described permanent magnet 7 is respectively arranged in two decks 6.
It is interference fit between the inwall of the outer wall and shell 2 of described threaded collar 52.
Described permanent magnet 7 is torus, or is the torus being spliced by polylith point lobe Magnet.
Dead slot of the described deck 6 for circular ring type, consistent with the shape and size of permanent magnet 7, deck 6 is by a side wall 61
Constitute with the connection of bottom surface 62, described bottom surface 62 is the face of cylinder, the inner surface of the bottom surface 62 of deck 6 parallel to pole shoe ring 4, deck
6 side wall 61 is annular plane, the left and right both ends of the surface of the side wall 61 of deck 6 parallel to pole shoe ring 4.
Half of the diameter of described 6 bottom surface 62 of deck less than or equal to 4 external diameter of pole shoe ring.
The right side of described pole shoe ring 4 is provided with annular groove 8 near the position of pole shoe ring outer wall, in annular groove 8
Rubber seal is installed.
Axial length of the axial length of described pole shoe ring 4 less than threaded collar 52.
The middle part being located in shell 2 on described axle 1 is provided with ladder 10, is respectively mounted one in the left and right sides of ladder 10
Bearing 3, the bearing 3 on the right side of ladder 10 are contacted with the left end of threaded collar 52.
Described permanent magnet 7 is radial magnetizing type permanent magnet, positioned at the magnetic force of the permanent magnet 7 of 4 or so both ends of the surface of pole shoe ring
Line is in opposite direction.
Gap between described 4 inner surface of pole shoe ring and the outer wall of axle 1 is 0.1mm-5mm.
Installation process of the present utility model is as follows：Bearing 3 is installed on axle 1 from the left side and right side of axle 1 respectively, bearing
3 left and right sides for being close to the ladder 10 in the middle part of axle 1；Shell 2 is installed on axle 1, shell 2 covers bearing 3,2 left end of shell
Inwall is close on axle 1 bearing 3 on the left of ladder 10；Rubber ring is installed in the annular groove 8 of 4 right side of pole shoe ring,
Permanent magnet 7 is installed in the deck 6 of 4 left and right sides of pole shoe ring, the pole orientation of the permanent magnet 7 in the pole shoe ring 4 of the left and right sides is made
Conversely, in the inner ring surface injection magnetic fluid of permanent magnet 7, installing pole shoe ring 4, the outer surface of pole shoe ring 4 from the left side of bearing cap 5
External screw thread and bearing cap 5 on the female thread of threaded collar 52 be engaged；Again pole shoe ring 4 and bearing cap 5 are installed from the right side of axle 1
On axle 1, on bearing cap 5, the outer surface set of threaded collar 52 loads the inner surface of 2 right-hand member of shell, threaded collar 52 on bearing cap 5
Left end is close on axle 1 bearing 3 on the right side of ladder 10；It is last that spiral shell is installed in the screw hole 9 of 2 right-hand member of shell and bearing cap 5
Nail, is fastened to bearing cap 5 by screw.
Claims (10)
1. a kind of bearing cap device for sealing magnetic fluid, including shell（2）, bearing（3）, pole shoe ring（4）, bearing cap（5）, permanent magnet
（7）, described shell（2）It is sleeved on axle（1）Left end on, described bearing（3）Located at shell（2）It is interior, it is characterised in that：
Described bearing cap（5）Including annular slab（51）And threaded collar（52）, described annular slab（51）External diameter be more than screw thread
Ring（52）External diameter and shell（2）Internal diameter, threaded collar（52）With annular slab（51）Left end link into an integrated entity；Described screw thread
Ring（52）External diameter and shell（2）Internal diameter it is consistent, threaded collar（52）From shell（2）Right-hand member be inserted in shell（2）It is interior, screw thread
Ring（52）Inner surface be provided with female thread, described pole shoe ring（4）Outer surface be provided with external screw thread, pole shoe ring（4）External screw thread
With threaded collar（52）Female thread cooperate, pole shoe ring（4）Screw in threaded collar（52）It is interior, pole shoe ring（4）Inner surface and axle
（1）Between leave gap；Described pole shoe ring（4）Left and right end face near axle（1）Place opens up a deck respectively（6）, institute
The permanent magnet stated（7）It is respectively arranged in two decks（6）It is interior.
2. bearing cap device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described threaded collar（52）Outer wall
With shell（2）Inwall between be interference fit.
3. bearing cap device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described permanent magnet（7）For annulus
Body, or be the torus being spliced by polylith point lobe Magnet.
4. bearing cap device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described deck（6）For circular ring type
Dead slot, with permanent magnet（7）Shape and size it is consistent, deck（6）By a side wall（61）And bottom surface（62）Connection composition, institute
The bottom surface stated（62）For the face of cylinder, deck（6）Bottom surface（62）Parallel to pole shoe ring（4）Inner surface, deck（6）Side wall
（61）For annular plane, deck（6）Side wall（61）Parallel to pole shoe ring（4）Left and right both ends of the surface.
5. bearing cap device for sealing magnetic fluid as claimed in claim 4, it is characterised in that：Described deck（6）Bottom surface（62）
Diameter be less than or equal to pole shoe ring（4）The half of external diameter.
6. bearing cap device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described pole shoe ring（4）Right-hand member
Face is provided with annular groove near the position of pole shoe ring outer wall（8）, in annular groove（8）Interior installation rubber seal.
7. bearing cap device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described pole shoe ring（4）Axial direction
Length is less than threaded collar（52）Axial length.
8. bearing cap device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described axle（1）It is upper to be located at shell
（2）Interior middle part is provided with ladder（10）, in ladder（10）The left and right sides be respectively mounted a bearing（3）, positioned at ladder（10）
The bearing on right side（3）With threaded collar（52）Left end contact.
9. bearing cap device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described permanent magnet（7）For radially
The type that magnetizes permanent magnet, positioned at pole shoe ring（4）The permanent magnet of left and right both ends of the surface（7）The magnetic line of force it is in opposite direction.
10. bearing cap device for sealing magnetic fluid as claimed in claim 1, it is characterised in that：Described pole shoe ring（4）Inner surface
With axle（1）Outer wall between gap be 0.1mm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621045346.4U CN206092708U (en) | 2016-09-09 | 2016-09-09 | Bearing cap device for sealing magnetic fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621045346.4U CN206092708U (en) | 2016-09-09 | 2016-09-09 | Bearing cap device for sealing magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206092708U true CN206092708U (en) | 2017-04-12 |
Family
ID=58476251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621045346.4U Expired - Fee Related CN206092708U (en) | 2016-09-09 | 2016-09-09 | Bearing cap device for sealing magnetic fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206092708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195026A (en) * | 2016-09-09 | 2016-12-07 | 广西科技大学 | A kind of bearing cap device for sealing magnetic fluid |
| CN111545131A (en) * | 2020-04-29 | 2020-08-18 | 北京航空航天大学 | Waste heat recovery type sealed hydrothermal reaction kettle |
-
2016
- 2016-09-09 CN CN201621045346.4U patent/CN206092708U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195026A (en) * | 2016-09-09 | 2016-12-07 | 广西科技大学 | A kind of bearing cap device for sealing magnetic fluid |
| CN106195026B (en) * | 2016-09-09 | 2018-03-27 | 广西科技大学 | A kind of bearing cap device for sealing magnetic fluid |
| CN111545131A (en) * | 2020-04-29 | 2020-08-18 | 北京航空航天大学 | Waste heat recovery type sealed hydrothermal reaction kettle |
| CN111545131B (en) * | 2020-04-29 | 2021-10-08 | 北京航空航天大学 | Control method of waste heat recovery type sealed hydrothermal reaction kettle |
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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: 20170412 Termination date: 20170909 |