CN108374895A - Low temperature resistant compact device for sealing magnetic fluid - Google Patents
Low temperature resistant compact device for sealing magnetic fluid Download PDFInfo
- Publication number
- CN108374895A CN108374895A CN201810364032.8A CN201810364032A CN108374895A CN 108374895 A CN108374895 A CN 108374895A CN 201810364032 A CN201810364032 A CN 201810364032A CN 108374895 A CN108374895 A CN 108374895A
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- CN
- China
- Prior art keywords
- magnetic fluid
- disk
- sealing
- low temperature
- temperature resistant
- 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.)
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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 low temperature resistant compact device for sealing magnetic fluid, low temperature resistant compact device for sealing magnetic fluid, including boss shape disk and thin dish-type shaft, disk and shaft coaxial arrangement and both ends alignment, the annular magnetic fluid sealing structure for being equipped with bearing between shaft and disk and sealing, magnetic fluid sealing structure includes magnetic liquid and magnetic pole, and magnetic fluid sealing structure is equipped with the heater for heating magnetic liquid.The purpose of the present invention is to provide a kind of device for sealing magnetic fluid that magnetic liquid will not freeze, solves the problems, such as that resistance increases, sealing device is stuck under prior art device for sealing magnetic fluid low temperature and cause not compact deformation of products, structure design, installation inconvenience, efficiency of assembling poor.
Description
Technical field
The present invention relates to magnetic or Magneticfluid Seal Technique fields, and in particular to low temperature resistant compact device for sealing magnetic fluid.
Background technology
Device for sealing magnetic fluid has excellent sealing performance, but one apparent defect of device for sealing magnetic fluid is just
It is that at low temperature, can be limited by magnetic fluidity, the resistance of magnetic sealing device can increase, and cause sealing device stuck, open by force
It is dynamic to cause deformation of products, therefore, it is necessary to develop a kind of device for sealing magnetic fluid that can be used at low temperature, so that it is met and fly
The requirement for the other instruments equipment that machine or needs work under the lower harsh environment of temperature.Meanwhile the prior art
That there is also structures is not compact enough for device for sealing magnetic fluid, and installation is inconvenient, the problem of efficiency of assembling difference.
Invention content
It is close in view of the deficiencies of the prior art, the present invention intends to provide a kind of magnetic fluid that magnetic liquid will not freeze
Seal apparatus, solve prior art device for sealing magnetic fluid low temperature under resistance increase, sealing device it is stuck and cause deformation of products, knot
Structure design is not compact, installation is inconvenient, efficiency of assembling difference problem.
Specific technical solution of the present invention is as follows：Low temperature resistant compact device for sealing magnetic fluid, including boss shape disk and thin
Dish-type shaft, above-mentioned disk and shaft coaxial arrangement and both ends alignment are equipped with bearing and rise between above-mentioned shaft and above-mentioned disk
The annular magnetic fluid sealing structure of sealing function, above-mentioned magnetic fluid sealing structure include magnetic liquid and magnetic pole, above-mentioned magnet fluid sealing
Structure is equipped with the heater for heating magnetic liquid.
The present invention is further arranged to：Above-mentioned heater is pure resistance type heating wire or electric heating sheets or electric boiling plate.
The present invention is further arranged to：Above-mentioned heater is connected with the electric wire extended to outside disk, said wires and outside
Power supply is connected.
The present invention is further arranged to：The lower end of above-mentioned shaft is equipped with annular edge, and the top of above-mentioned annular edge is equipped with annular
The lower end of convex block, above-mentioned disk is equipped with ring-shaped depression area, and above-mentioned annular lug is inserted into above-mentioned ring-shaped depression area, above-mentioned convex annular
Block lateral wall is connected by above-mentioned bearing with above-mentioned disk；Gusset is equipped with above-mentioned annular magnet fluid sealing outside the middle part of above-mentioned shaft
Structure, above-mentioned magnetic fluid sealing structure are installed on the annular mounting surface of above-mentioned disk upper end；The lower edge of above-mentioned shaft is equal
It is laid with multiple connecting holes.
The present invention is further arranged to：The center at above-mentioned shaft both ends is arranged with counterbore and stepped hole.
The present invention is further arranged to：Above-mentioned disk border is equipped with multiple mounting holes.
The present invention is further arranged to：The upper end of above-mentioned annular lug is equipped with the first baffle ring of locking bearing inner race, above-mentioned
The lower end of annular lug is equipped with the first bolt, and the first baffle ring is locked at the upper surface of annular lug by above-mentioned first bolt.
The present invention is further arranged to：Second baffle ring of the lower end of above-mentioned disk equipped with locking bearing outer ring, above-mentioned second
Baffle ring is equipped with soket head cap screw or bolt, and the second baffle ring is locked at the lower face of above-mentioned disk by above-mentioned soket head cap screw.
The present invention is further arranged to：One end of above-mentioned magnetic fluid sealing structure is equipped with third baffle ring, above-mentioned third baffle ring
It is equipped with third screw, the upper end of above-mentioned third baffle ring and above-mentioned disk is connected by above-mentioned third screw.
The present invention is further arranged to：Said wires are set between above-mentioned third baffle ring and above-mentioned disk body.
The present invention has the following advantages：
1）Magnetic pole is equipped with the heater of heating, at low ambient temperatures, heats magnetic pole and magnetic liquid by heater, effectively prevent
The solidification solidification of magnetic liquid, solves the problems, such as that device for sealing magnetic fluid is stuck at low ambient temperatures.
2）The structure design of the present invention is compact, using thin dish-type shaft and disk, whole the space occupied and axial direction
Install it is compacter, increase the present invention application range.
3）The present invention heats magnetic liquid by the way that heater is arranged, by heater, you can solves puzzlement magnetic fluid and is answered in low temperature
Limitation meets the requirement of subzero 50 degree or so of low temperature outside work, has economic value outstanding and actually answers
Use effect.
4）By optimization design, especially by first to third baffle ring fastening bolt or screw, change connection structure,
It is all designed to the mode of bolt head outwardly, enormously simplifies assembly difficulty, improve efficiency of assembling, assembly and repair are very square
Just.
Description of the drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is upward view of the present invention.
Specific implementation mode
Embodiment 1
With reference to attached drawing, specific technical solution of the present invention is as follows：Low temperature resistant compact device for sealing magnetic fluid, including boss shape disk
2 and thin dish-type shaft 1, disk 2 and the coaxial arrangement of shaft 1 and both ends are aligned, and bearing 3 and close is equipped between shaft 1 and disk 2
The annular magnetic fluid sealing structure 4 of envelope effect, magnetic fluid sealing structure 4 include magnetic liquid and magnetic pole, are set on magnetic fluid sealing structure 4
It is useful for the heater of heating magnetic liquid.
Heater is pure resistance type heating wire or electric heating sheets or electric boiling plate.Can also use other heaters, such as with
Air-conditioning heater structure is consistent, but minimizes.As long as disclosure satisfy that heating magnetic liquid, while it disclosure satisfy that miniaturization installation requirement again
.Magnetic fluid sealing mechanism 4 belongs to the prior art, is not this patent innovative point, therefore concrete structure is not drawn, as long as full
There are magnetic liquid or magnetic rheological liquid in sufficient magnetic fluid sealing structure.
Heater is connected with the electric wire 5 extended to outside disk 2, and electric wire 5 is connected with external power supply.Electricity is provided for heating
Or electric power.
The lower end of shaft 1 is equipped with annular edge 11, and the top of annular edge 11 is equipped with annular lug 12, and the lower end of disk 2 is equipped with
Ring-shaped depression area 21, annular lug 12 are inserted into annular depressed area 21, and 12 lateral wall of annular lug passes through bearing 3 and 2 phase of disk
Even；Gusset is equipped with annular magnetic fluid sealing structure 4 outside the middle part of shaft 1, and magnetic fluid sealing structure 4 is installed on 2 upper end of disk
On annular mounting surface 22；The lower edge of shaft 1 is laid with multiple connecting holes 13.
The center at 1 both ends of shaft is arranged with counterbore 14 and stepped hole 15.
2 edge of disk is equipped with multiple mounting holes 23.
The upper end of annular lug 12 is equipped with the first baffle ring 6 of locking bearing inner race, and the lower end of annular lug 12 is equipped with first
First baffle ring 6 is locked at the upper surface of annular lug 12 by bolt 61, the first bolt 61.
The lower end of disk 2 be equipped with locking bearing outer ring the second baffle ring 7, the second baffle ring 7 be equipped with soket head cap screw 71 or
Second baffle ring 7 is locked at the lower face of disk 2 by bolt, soket head cap screw 71.
One end of magnetic fluid sealing structure 4 is equipped with third baffle ring 8, and third baffle ring 8 is equipped with third screw 81, third screw
81 are connected the upper end of third baffle ring 8 and disk 2.
Electric wire 5 is set between third baffle ring 8 and disk body 2.
When it is implemented, under the action of low temperature, the magnetic liquid meeting in the magnetic fluid sealing structure 4 in device for sealing magnetic fluid
Condensation solidification, causes magnetic fluid sealing structure stuck, and starting can cause to damage by force, by being arranged in device for sealing magnetic fluid
Magnetic liquid can be heated quickly, while quickly start the operation of a machine by heater, improve the service life of machine, reduce failure
Rate.
Above-mentioned above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. low temperature resistant compact device for sealing magnetic fluid, including boss shape disk（2）With thin dish-type shaft（1）, it is characterised in that：
The disk（2）And shaft（1）Coaxial arrangement and both ends alignment, the shaft（1）With the disk（2）Between be equipped with bearing
（3）With the annular magnetic fluid sealing structure to seal（4）, the magnetic fluid sealing structure（4）Including magnetic liquid and magnetic pole, institute
State magnetic fluid sealing structure（4）It is equipped with the heater for heating magnetic liquid.
2. low temperature resistant compact device for sealing magnetic fluid according to claim 1, it is characterised in that：The heater is pure
Resistor-type heating wire or electric heating sheets or electric boiling plate.
3. low temperature resistant compact device for sealing magnetic fluid according to claim 1 or 2, it is characterised in that：The heater
With extend to disk（2）Outer electric wire（5）It is connected, the electric wire（5）It is connected with external power supply.
4. low temperature resistant compact device for sealing magnetic fluid according to claim 1 or 2 or 3, it is characterised in that：
The shaft（1）Lower end be equipped with annular edge（11）, the annular edge（11）Top be equipped with annular lug（12）, described
Disk（2）Lower end be equipped with ring-shaped depression area（21）, the annular lug（12）It is inserted into the ring-shaped depression area（21）In, it is described
Annular lug（12）Lateral wall passes through the bearing（3）With the disk（2）It is connected；The shaft（1）Middle part outside gusset set
There is the annular magnetic fluid seal structure（4）, the magnetic fluid sealing structure（4）It is installed on the disk（2）The annular of upper end
Mounting surface（22）On；
The shaft（1）Lower edge be laid with multiple connecting holes（13）.
5. low temperature resistant compact device for sealing magnetic fluid according to claim 1 or 2 or 3, it is characterised in that：The shaft
（1）The center at both ends is arranged with counterbore（14）And stepped hole（15）.
6. low temperature resistant compact device for sealing magnetic fluid according to claim 1 or 2 or 3, it is characterised in that：The disk
（2）Edge is equipped with multiple mounting holes（23）.
7. low temperature resistant compact device for sealing magnetic fluid according to claim 1 or 2 or 3, it is characterised in that：The annular
Convex block（12）Upper end be equipped with locking bearing inner race the first baffle ring（6）, the annular lug（12）Lower end be equipped with the first spiral shell
Bolt（61）, first bolt（61）By the first baffle ring（6）It is locked at annular lug（12）Upper surface.
8. low temperature resistant compact device for sealing magnetic fluid according to claim 7, it is characterised in that：The disk（2）'s
Lower end is equipped with the second baffle ring of locking bearing outer ring（7）, second baffle ring（7）It is equipped with soket head cap screw（71）Or bolt,
The soket head cap screw（71）By the second baffle ring（7）It is locked at the disk（2）Lower face.
9. low temperature resistant compact device for sealing magnetic fluid according to claim 1 or claim 7, it is characterised in that：The magnetic fluid
Sealing structure（4）One end be equipped with third baffle ring（8）, the third baffle ring（8）It is equipped with third screw（81）, the third spiral shell
Nail（81）By the third baffle ring（8）With the disk（2）Upper end be connected.
10. low temperature resistant compact device for sealing magnetic fluid according to claim 9, it is characterised in that：The electric wire（5）If
It is placed in the third baffle ring（8）With the disk body（2）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364032.8A CN108374895B (en) | 2018-04-23 | 2018-04-23 | Low-temperature-resistant compact magnetic fluid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364032.8A CN108374895B (en) | 2018-04-23 | 2018-04-23 | Low-temperature-resistant compact magnetic fluid sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108374895A true CN108374895A (en) | 2018-08-07 |
| CN108374895B CN108374895B (en) | 2023-10-20 |
Family
ID=63032529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810364032.8A Active CN108374895B (en) | 2018-04-23 | 2018-04-23 | Low-temperature-resistant compact magnetic fluid sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108374895B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081755A (en) * | 2020-03-26 | 2020-12-15 | 合肥丰蓝电器有限公司 | Low-temperature fan |
| CN113324039A (en) * | 2021-05-17 | 2021-08-31 | 清华大学 | Method for reducing starting torque of magnetic liquid sealing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003314706A (en) * | 2002-04-25 | 2003-11-06 | Nok Corp | Sealing device utilizing magnetic fluid |
| CN101415976A (en) * | 2006-03-31 | 2009-04-22 | 伊格尔工业股份有限公司 | Device for sealing magnetic fluid |
| CN212080163U (en) * | 2020-04-03 | 2020-12-04 | 杭州铂利雅精密机械有限公司 | Low-temperature-resistant magnetic fluid sealing device |
-
2018
- 2018-04-23 CN CN201810364032.8A patent/CN108374895B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003314706A (en) * | 2002-04-25 | 2003-11-06 | Nok Corp | Sealing device utilizing magnetic fluid |
| CN101415976A (en) * | 2006-03-31 | 2009-04-22 | 伊格尔工业股份有限公司 | Device for sealing magnetic fluid |
| CN212080163U (en) * | 2020-04-03 | 2020-12-04 | 杭州铂利雅精密机械有限公司 | Low-temperature-resistant magnetic fluid sealing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081755A (en) * | 2020-03-26 | 2020-12-15 | 合肥丰蓝电器有限公司 | Low-temperature fan |
| CN113324039A (en) * | 2021-05-17 | 2021-08-31 | 清华大学 | Method for reducing starting torque of magnetic liquid sealing device |
| CN113324039B (en) * | 2021-05-17 | 2022-03-11 | 清华大学 | Method for reducing starting torque of magnetic liquid sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108374895B (en) | 2023-10-20 |
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