CN104455460A - Dust prevention device of magnetic fluid - Google Patents
Dust prevention device of magnetic fluid Download PDFInfo
- Publication number
- CN104455460A CN104455460A CN201310418506.XA CN201310418506A CN104455460A CN 104455460 A CN104455460 A CN 104455460A CN 201310418506 A CN201310418506 A CN 201310418506A CN 104455460 A CN104455460 A CN 104455460A
- Authority
- CN
- China
- Prior art keywords
- magnetic fluid
- magnetic
- fluid
- permanent magnet
- baffle plate
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a dust prevention device of a magnetic fluid. The device mainly consists of a newest permanent magnet (1), an isolating baffle plate (2), the magnetic fluid (3), a bearing bushing (4), a bearing cover (5) and a main shaft (6). The working principle of the device is as follows: a sealing device of the magnetic fluid mainly applies the magnetic fluid to form a fluid, with uniform structure and flowing liquid characteristics, under the effect of a magnetic field; and the novel annular NS double-pole guide permanent magnet (1) is mounted in the bearing bushing (4), and can form a strong magnetic field to realize the magnetic performance of the magnetic fluid. The isolating baffle plate (2) and the bearing cover (5) form a closed container for the magnetic fluid (3); the magnetic fluid (3) can realize the effects of stable sealing of the magnetic field and lubricant sealing of the magnetic fluid (3). The characteristics of dust and water resistance of a generator main shaft are realized under such bad weathers as sandstorms.
Description
Technical field
The present invention relates to a kind of magnetic fluid field, specifically relates to a kind of magnetic fluid dust guard.
Background technique
Magnetic fluid is that superfine magnetic-particle (or this magnetized particle of energy) is coated in surface active agent or dispersion, and be mixed in light mineral oil, the diameter of these particles usually between 3-15 micron, and disperses in light mineral matter carrier.Magnetic-particle is usually by surfactant or dispersant-coated, and surfactant or dispersing agent can make to maintain a certain distance between magnetic-particle to overcome Fan Dewalesili and magnetic interaction power (attraction force), thus make magnetic fluid have good sliding.Generally with different paraffinic dispersing agent, can realize the static friction coefficient of 0.0008-0.002, viscosity is starkly lower than 2cp-6cp.Magnetic fluid, as a kind of special functional material, is the surface active agent magnetic particle of nanometer scale (10 ran) being wrapped up one deck long-chain, is dispersed in a kind of uniform and stable colloidal solution formed in base fluid uniformly.Magnetic fluid is made up of nano magnetic particle, base fluid and surface active agent.That generally commonly uses has Fe3O4, Fe2O3, Ni, Co etc. as magnetic-particle, using water, organic solvent, wet goods as base fluid, prevents from reuniting using oleic acid etc. as Active agent.Because magnetic fluid has the mobility of liquid and the magnetic of solid, magnetic fluid is made to present much special magnetic, optical, electrical phenomenon, as Faraday effect, birefrigent effect and line dichroism etc.These character have important application prospect in optical modulation, optical switch, optical isolators and sensor field.
At present, patent about section sealing has the sealing of 201220661865.9 fluid main shafts, main shaft intermediate circumference to be provided with a circular bosses, main shaft two ends are respectively equipped with twice step, wherein the whole body, end of the step of one end is outer is processed with screw thread, and the whole body, end of the other end is outer is processed with screw thread, is also processed with screw thread in the through hole of main shaft, at through hole two ends processing seam, prevent main shaft from being that screw thread in through hole is destroyed at grinding machine.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of magnetic fluid dust guard.
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
Magnetic fluid dust guard of the present invention forms primarily of with lower part: a kind of latest model permanent magnet 1, isolation baffle plate 2, magnetic fluid 3, bearing outside 4, bearing cap 5, main shaft 6.
Working principle of the present invention is as follows: device for sealing magnetic fluid mainly applies magnetic fluid can form the fluid that a kind of even structure has mobility characteristics of liquids under magnetic fields, the bipolar guiding permanent magnet 1 of a kind of novel annular NS is housed in the inside of bearing outside 4, and latest model permanent magnet 1 can form the magnetization property that a kind of powerful magnetic field realizes magnetic fluid.Isolate baffle plate 2 and bearing cap 5 and define a kind of airtight container for magnetic fluid 3, magnetic fluid 3 can realize the stabilized seal in magnetic field and the effect of magnetic fluid 3 lubrication and seal.The characteristic of the dustproof and waterproof of generator shaft is realized under the severe gesture weather such as large dust storm.
Compared with prior art, the invention has the beneficial effects as follows:
Design a kind of new magnetic fluid section treatment process, achieve section part, the sealing of bearing and lubrication, structural stability is reliable, and the operating time is longer.
Accompanying drawing explanation
Fig. 1 is magnetic fluid dust guard structural drawing.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
Magnetic fluid dust guard of the present invention forms primarily of with lower part: a kind of latest model permanent magnet 1, isolation baffle plate 2, magnetic fluid 3, bearing outside 4, bearing cap 5, main shaft 6.
Working principle of the present invention is as follows: device for sealing magnetic fluid mainly applies magnetic fluid can form the fluid that a kind of even structure has mobility characteristics of liquids under magnetic fields, the bipolar guiding permanent magnet 1 of a kind of novel annular NS is housed in the inside of bearing outside 4, and latest model permanent magnet 1 can form the magnetization property that a kind of powerful magnetic field realizes magnetic fluid.Isolate baffle plate 2 and bearing cap 5 and define a kind of airtight container for magnetic fluid 3, magnetic fluid 3 can realize the stabilized seal in magnetic field and the effect of magnetic fluid 3 lubrication and seal.The characteristic of the dustproof and waterproof of generator shaft is realized under the severe gesture weather such as large dust storm.
The undeclared part related in the present invention is same as the prior art or adopt prior art to be realized.
Claims (3)
1. a magnetic fluid dust guard, comprise a kind of latest model permanent magnet (1), isolation baffle plate (2), magnetic fluid (3), bearing outside (4), bearing cap (5), main shaft (6), it is characterized in that: described a kind of latest model permanent magnet (1); Described magnetic fluid (3).
2. a kind of latest model permanent magnet (1) according to claim 1, it is characterized in that: described a kind of latest model permanent magnet (1) refers to, the bipolar guiding permanent magnet (1) of a kind of novel annular NS is housed in the inside of bearing outside (4), and latest model permanent magnet (1) can form the magnetization property that a kind of powerful magnetic field realizes magnetic fluid.
3. magnetic fluid according to claim 1 (3), it is characterized in that: described magnetic fluid (3) device for sealing magnetic fluid mainly applies magnetic fluid can form the fluid that a kind of even structure has mobility characteristics of liquids under magnetic fields, isolate baffle plate (2) and bearing cap (5) and define a kind of airtight container for magnetic fluid (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418506.XA CN104455460A (en) | 2013-09-15 | 2013-09-15 | Dust prevention device of magnetic fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418506.XA CN104455460A (en) | 2013-09-15 | 2013-09-15 | Dust prevention device of magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455460A true CN104455460A (en) | 2015-03-25 |
Family
ID=52901985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310418506.XA Pending CN104455460A (en) | 2013-09-15 | 2013-09-15 | Dust prevention device of magnetic fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455460A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017396A (en) * | 2019-05-22 | 2019-07-16 | 杭州沃凌的机电有限公司 | A kind of magnet fluid sealing valve |
| CN110094523A (en) * | 2019-05-22 | 2019-08-06 | 杭州沃凌的机电有限公司 | A kind of magnetic fluid valve |
| CN113021071A (en) * | 2021-03-10 | 2021-06-25 | 四川大学 | Method for treating ferromagnetic cutter and magnetic cutting fluid combination by pulse magnetic field |
-
2013
- 2013-09-15 CN CN201310418506.XA patent/CN104455460A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017396A (en) * | 2019-05-22 | 2019-07-16 | 杭州沃凌的机电有限公司 | A kind of magnet fluid sealing valve |
| CN110094523A (en) * | 2019-05-22 | 2019-08-06 | 杭州沃凌的机电有限公司 | A kind of magnetic fluid valve |
| CN113021071A (en) * | 2021-03-10 | 2021-06-25 | 四川大学 | Method for treating ferromagnetic cutter and magnetic cutting fluid combination by pulse magnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |