CN207213180U - A kind of zigzag tooth end-surface type magnetic fluid seal device - Google Patents
A kind of zigzag tooth end-surface type magnetic fluid seal device Download PDFInfo
- Publication number
- CN207213180U CN207213180U CN201721047681.2U CN201721047681U CN207213180U CN 207213180 U CN207213180 U CN 207213180U CN 201721047681 U CN201721047681 U CN 201721047681U CN 207213180 U CN207213180 U CN 207213180U
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- CN
- China
- Prior art keywords
- pole shoe
- housing
- sealing
- hectograph
- axle sleeve
- 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 Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a kind of zigzag tooth end-surface type magnetic fluid seal device,Including housing,Cavity is provided with housing,Magnetic transmission axle is coaxially provided with cavity,The middle part of magnetic transmission axle is provided with axle sleeve,It is rotatablely connected between magnetic transmission axle and housing by bearing,Outer pole shoe and interior pole shoe are provided between axle sleeve and housing,Side of the outer pole shoe away from interior pole shoe is provided with sealing hectograph,Humidity sensor is provided with sealing hectograph,The utility model is by installing outer pole shoe and interior pole shoe,Magnetic fluid is injected between outer pole shoe and interior pole shoe,So as to reach the sealing effectiveness of magnetic fluid,In the end face of housing, spring and rubber bodies are set,The oil and water that the external world can effectively be prevented enter inside device,In long-term use,When the oil and water in the external world enter inside device,Or magnetic fluid is when revealing,Humidity sensor on sealing hectograph senses that signal is passed to controller by signal,So as to which user can discover in time.
Description
Technical field
It the utility model is related to a kind of magnetic fluid seal device, and in particular to a kind of zigzag tooth end-surface type magnetic fluid is close
Seal apparatus.
Background technology
Magnetic fluid seal is pressure-resistant, and performance significantly reduces with the increase of seal clearance.Therefore wide arc gap magnetic flow is improved
The pressure-resistant performance of body sealing is one of hot issue of current research, improves the side of the pressure-resistant performance of wide arc gap magnetic Fluid Sealing
One of method be by improving magnetic fluid seal structure, existing magnetic fluid seal device by setting labyrinth seal structure,
The sealing property of more traditional sealing structure is greatly improved, but due to setting axial seal ring, rotating shaft is in rotation process
In caused circular runout sealing property is had a great influence；Further, since sealing structure sets the defects of existing, cause to seal
The leakage rate of magnetic fluid is big during failure, and pressure-resistant performance is relatively low, can not meet wide arc gap and the requirement of operating mode such as at a high speed, except this it
Outside, when used over time, if the oil of magnetic fluid leakage or the external world occurs, water can not be examined into user during device inside
Feel, so as to cause serious consequence.
Utility model content
The utility model provides a kind of zigzag tooth end-surface type magnetic fluid seal device, solves present in prior art
Some problems.
In order to solve the above-mentioned technical problem, the utility model provides following technical scheme：
A kind of zigzag tooth end-surface type magnetic fluid seal device of the utility model, including housing, the housing is interior to be provided with sky
Chamber, the both ends of the cavity are connected with the external world, are coaxially provided with magnetic transmission axle in the cavity, in the magnetic transmission axle
Portion is provided with axle sleeve, is rotatablely connected between magnetic transmission axle and housing by bearing, and outer pole shoe is provided between the axle sleeve and housing
With interior pole shoe, the outer pole shoe is located at the outside of interior pole shoe, and the junction of the outer pole shoe, interior pole shoe and axle sleeve offers card
Groove, the groove corresponding with axle sleeve is offered on the axle sleeve, and jump ring is provided with neck, the outer pole shoe away from interior pole shoe one
Side is provided with permanent magnet, and the permanent magnet is in contact with axle sleeve, and the side of the outer pole shoe away from interior pole shoe is provided with sealing hectograph, institute
State sealing hectograph to connect with magnetic transmission axle interference fit, the described one end of sealing hectograph away from magnetic transmission axle is fixed with housing
Connect, string holes is offered positioned at the radial direction side of fluid sealant version on the housing, and string holes runs through housing, it is described to seal in hectograph
Provided with humidity sensor.
As a kind of optimal technical scheme of the present utility model, the both ends of the housing radially open up it is fluted, it is described recessed
Spring is provided with groove, one end of spring is fixedly connected with groove inner wall, and the other end is fixedly connected with rubber bodies, and the rubber bodies are remote
One end of spring connects with magnetic transmission axle interference fit.
As a kind of optimal technical scheme of the present utility model, it is described sealing hectograph in humidity sensor by wire with
Ambient controller is electrically connected, and wire is passed through to the external world from the string holes on housing.
The beneficial effect that the utility model is reached is：The utility model is by installing outer pole shoe and interior pole shoe, pole outside
Magnetic fluid is injected between boots and interior pole shoe, so as to reach the sealing effectiveness of magnetic fluid, spring is set in the end face of housing
And rubber bodies, the oil and water that can effectively prevent the external world enter inside device, in long-term use, when the oil and water in the external world enter
Inside device, or when magnetic fluid is revealed, the humidity sensor sealed on hectograph senses that signal passes to signal
Controller, so as to which user can discover in time.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.
In the accompanying drawings：
Fig. 1 is a kind of overall structure figure of zigzag tooth end-surface type magnetic fluid seal device of the utility model；
In figure：1st, housing；2nd, cavity；3rd, magnetic transmission axle；4th, axle sleeve；5th, bearing；6th, outer pole shoe；7th, interior pole shoe；8th, block
Spring；9th, permanent magnet；10th, groove；11st, spring；12nd, rubber bodies；13rd, hectograph is sealed.
Embodiment
Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the utility model, be not used to limit the utility model.
Embodiment：As shown in figure 1, a kind of zigzag tooth end-surface type magnetic fluid seal device of the utility model, including housing
1, the housing 1 is interior to be provided with cavity 2, and the both ends of the cavity 2 are connected with the external world, and magnetic biography is coaxially provided with the cavity 2
Moving axis 3, the middle part of the magnetic transmission axle 3 are provided with axle sleeve 4, are rotatablely connected between magnetic transmission axle 3 and housing 1 by bearing 5,
Outer pole shoe 6 and interior pole shoe 7 are provided between the axle sleeve 4 and housing 1, the outer pole shoe 6 is located at the outside of interior pole shoe 7, described outer
Pole shoe 6, the junction of interior pole shoe 7 and axle sleeve 4 offer neck, and the groove corresponding with axle sleeve 4 is offered on the axle sleeve 4,
And jump ring 8 is provided with neck, the side of the outer pole shoe 6 away from interior pole shoe 7 is provided with permanent magnet 9, the permanent magnet 9 and axle sleeve 4
It is in contact, the side of the outer pole shoe 6 away from interior pole shoe 7 is provided with sealing hectograph 13, the sealing hectograph 13 and magnetic transmission axle 3
Interference fit connection, the described one end of sealing hectograph 13 away from magnetic transmission axle 3 are fixedly connected with housing 1, and the housing 1 is upper
String holes is offered in the radial direction side of sealing hectograph 13, and string holes runs through housing 1, and humidity sensor is provided with the sealing hectograph 13
Device.
The both ends of the housing 1 radially open up fluted 10, are provided with spring 11 in the groove 10, one end of spring 11 and
The inwall of groove 10 is fixedly connected, and the other end is fixedly connected with rubber bodies 12, the rubber bodies 12 one end and magnetic away from spring 11
The interference fit connection of power transmission shaft 3.
Humidity sensor in the sealing hectograph 13 is electrically connected by wire with ambient controller, and wire is from housing 1
String holes pass through to extraneous.
Magnetic transmission axle 3 is rotated by bearing 5 in housing 1, in the gap between outer pole shoe 6 and interior pole shoe 7
Magnetic fluid is injected, sealing function can be realized, the jump ring 8 between outer pole shoe 6, interior pole shoe 7 and axle sleeve 4 can be by the two and axle
Set 4 is fixed well, sets spring 11 and rubber bodies 12, the elastic force of spring 11 to make rubber bodies 12 tight in the end face of housing 1
It is pressed on magnetic transmission axle 3, can effectively prevents oil, water and the dust in the external world from entering in device, when the magnetic flow in device
When the oil of leakage or the external world occurs for body, water is entered inside device, the sensor sealed on hectograph 13 passes signal by wire
The controller in the external world is passed, wire is attached from string holes with the external world.
The utility model injects magnetic flow by installing outer pole shoe 6 and interior pole shoe 7 between outer pole shoe 6 and interior pole shoe 7
Body, so as to reach the sealing effectiveness of magnetic fluid, spring 11 and rubber bodies 12 are set in the end face of housing 1, can effectively be hindered
Only extraneous oil and water enter inside device, in long-term use, when the oil and water in the external world enter inside device, or magnetic flow
When body is revealed, the humidity sensor sealed on hectograph 13 senses that signal is passed to controller by signal, is used so as to allow
Person can discover in time.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc.,
It should be included within the scope of protection of the utility model.
Claims (3)
1. a kind of zigzag tooth end-surface type magnetic fluid seal device, including housing (1), it is characterised in that set in the housing (1)
There is cavity (2), the both ends of the cavity (2) are connected with the external world, and magnetic transmission axle (3), institute are coaxially provided with the cavity (2)
The middle part for stating magnetic transmission axle (3) is provided with axle sleeve (4), is rotated and connected by bearing (5) between magnetic transmission axle (3) and housing (1)
Connect, outer pole shoe (6) and interior pole shoe (7) are provided between the axle sleeve (4) and housing (1), the outer pole shoe (6) is located at interior pole shoe
(7) outside, the outer pole shoe (6), the junction of interior pole shoe (7) and axle sleeve (4) offer neck, on the axle sleeve (4)
The groove corresponding with axle sleeve (4) is offered, and jump ring (8) is provided with neck, the one of the remote interior pole shoe (7) of the outer pole shoe (6)
Side is provided with permanent magnet (9), and the permanent magnet (9) is in contact with axle sleeve (4), side of the outer pole shoe (6) away from interior pole shoe (7)
Provided with sealing hectograph (13), the sealing hectograph (13) connects with magnetic transmission axle (3) interference fit, the sealing hectograph (13)
One end away from magnetic transmission axle (3) is fixedly connected with housing (1), and the radial direction of fluid sealant version (13) is located on the housing (1)
Side offers string holes, and string holes runs through housing (1), and humidity sensor is provided with the sealing hectograph (13).
A kind of 2. zigzag tooth end-surface type magnetic fluid seal device according to claim 1, it is characterised in that the housing
(1) both ends are radially opened up fluted (10), and spring (11), one end of spring (11) and groove are provided with the groove (10)
(10) inwall is fixedly connected, and the other end is fixedly connected with rubber bodies (12), the one end of the rubber bodies (12) away from spring (11) with
Magnetic transmission axle (3) interference fit connection.
A kind of 3. zigzag tooth end-surface type magnetic fluid seal device according to claim 1, it is characterised in that the sealing
Humidity sensor in hectograph (13) is electrically connected by wire with ambient controller, and wire is from the string holes on housing (1) through extremely
It is extraneous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721047681.2U CN207213180U (en) | 2017-08-21 | 2017-08-21 | A kind of zigzag tooth end-surface type magnetic fluid seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721047681.2U CN207213180U (en) | 2017-08-21 | 2017-08-21 | A kind of zigzag tooth end-surface type magnetic fluid seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207213180U true CN207213180U (en) | 2018-04-10 |
Family
ID=61815885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721047681.2U Expired - Fee Related CN207213180U (en) | 2017-08-21 | 2017-08-21 | A kind of zigzag tooth end-surface type magnetic fluid seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207213180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930795A (en) * | 2018-09-03 | 2018-12-04 | 广西科技大学 | A kind of lenticular device for sealing magnetic fluid of mixed type |
-
2017
- 2017-08-21 CN CN201721047681.2U patent/CN207213180U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930795A (en) * | 2018-09-03 | 2018-12-04 | 广西科技大学 | A kind of lenticular device for sealing magnetic fluid of mixed type |
| CN108930795B (en) * | 2018-09-03 | 2023-05-05 | 广西科技大学 | Mixed concave-convex magnetic fluid sealing device |
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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 |
Granted publication date: 20180410 Termination date: 20190821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |