CN107246477A - A kind of installation method of magnetic fluid rotary sealing appts - Google Patents
A kind of installation method of magnetic fluid rotary sealing appts Download PDFInfo
- Publication number
- CN107246477A CN107246477A CN201710340592.5A CN201710340592A CN107246477A CN 107246477 A CN107246477 A CN 107246477A CN 201710340592 A CN201710340592 A CN 201710340592A CN 107246477 A CN107246477 A CN 107246477A
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- Prior art keywords
- permanent magnet
- magnetic
- power transmission
- transmission shaft
- ring
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Classifications
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- 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 kind of installation method of magnetic fluid rotary sealing appts, it is intended to which it is low to solve device for sealing magnetic fluid installation effectiveness, installs inconvenience, the not good deficiency of magnetic fluid component static seal performance after installation.The invention first step, demagnetization processing is carried out to columned permanent magnet, and is cleaned up, and removes chip；Magnetic fluid is smeared on second step, the tooth form outer wall that position of magnetic pole is installed on power transmission shaft, and magnetic pole is installed；3rd step, permanent magnet is arranged between two magnetic poles, and the circle of close installation one permanent magnet constitutes the permanent-magnetic clamp of annular between two magnetic poles；4th step, fixed permanent magnet, magnetic pole, power transmission shaft, and permanent magnet is magnetized；5th step, on power transmission shaft suit spacer ring and fore bearing successively from back to front, and power transmission shaft is fitted into pedestal forward from pedestal rear end, spacer ring is connected between magnetic pole and front axle bearing outer-ring, fore bearing base internal wall close fit；6th step, assembles sleeve and rear bearing successively in pedestal.
Description
Technical field
The present invention relates to a kind of magnetic fluid rotary sealing appts, more specifically, it relates to a kind of magnetic fluid rotatory sealing
The installation method of device.
Background technology
At present, Magneticfluid Seal Technique is melted due to the superiority in its structure in monocrystaline silicon stove, vacuum brazing furnace, vacuum
It is widely used on the vacuum equipments such as furnace, chemical vapor deposition, ion film plating, liquid crystal regeneration.Magnet fluid sealing group
Part is the core component of magnetic fluid rotary sealing appts, during assembling, and magnet fluid sealing component needs first to be installed on power transmission shaft, so
Magnetic fluid component is assembled in pedestal together with power transmission shaft afterwards, but the assembly method used now, installation effectiveness is low, peace
Dress inconvenience, magnetic fluid component sealing property is not good after installation.Such as Chinese patent notification number CN201634793U, disclosed one
Integral magnetofluid sealing device, including housing and crucible pole are planted, is provided between crucible pole and housing for realizing crucible pole
The bearing of gyration, is provided with magnet fluid sealing component between crucible pole and housing, magnet fluid sealing component is by permanent magnet, interior
Axially position and load transmission are provided with component and the magnetic fluid composition being filled between permanent magnet and inner assembly, crucible pole
Device.The device for sealing magnetic fluid installation effectiveness of this structure is low, installs inconvenience, magnetic fluid component static seal after installation
Can not be good.
The content of the invention
Instant invention overcomes device for sealing magnetic fluid installation effectiveness is low, inconvenience is installed, magnetic fluid component is quiet after installation
The not good deficiency of sealing property is there is provided a kind of installation method of magnetic fluid rotary sealing appts, and device for sealing magnetic fluid is installed
Efficiency high, easy for installation, magnetic fluid component static seal performance is good after installation.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：A kind of magnetic fluid rotary sealing appts
Installation method, the first step carries out demagnetization processing to columned permanent magnet, and cleans up, and removes chip；Second step, is being passed
Magnetic fluid is smeared on the tooth form outer wall that position of magnetic pole is installed on moving axis, and magnetic pole is installed；3rd step, two magnetic are arranged on by permanent magnet
Between pole, the circle of close installation one permanent magnet constitutes the permanent-magnetic clamp of annular between two magnetic poles；4th step, fixed permanent magnet, magnetic pole, biography
Moving axis, and permanent magnet is magnetized；5th step, is set with spacer ring and fore bearing, and will pass successively from back to front on power transmission shaft
During moving axis is fitted into pedestal forward from pedestal rear end, spacer ring is connected between magnetic pole and front axle bearing outer-ring, and fore bearing base internal wall is tight
Close assembling；6th step, assembles sleeve and rear bearing successively in pedestal, and rear bearing is installed tightly between power transmission shaft and pedestal,
Sleeve is connected between front axle bearing outer-ring and rear bearing outer ring；7th step, rear bearing rear connection spacing ring, limit on power transmission shaft
Position ring is connected on bearing inner race, and connects end cap in pedestal rear end, and end cap front end is connected on rear bearing outer ring.
The whole installation process of magnetic fluid rotary sealing appts is simple and convenient, and operating efficiency is high, is carried out after permanent magnet demagnetization clear
Wash, remove chip, prevent in running chip abjection is dropped to destroy sealing on power transmission shaft tooth form outer wall.Permanent magnet is installed
Ensure that magnetic direction is identical.Fixed permanent magnet, magnetic pole, power transmission shaft, and permanent magnet is magnetized, prevent permanent magnet from deviating from, together
When prevent foreign matter enter between magnetic pole and power transmission shaft.The magnetic fluid rotary sealing appts magnetic fluid assembled by this installation method
Component static seal performance is good.
Preferably, when the 4th step fixed permanent magnet, magnetic pole, power transmission shaft, the U.S. line of permanent magnetism body length is first less than with width
All permanent magnets are surrounded into an entirety by paper；Permanent magnet, magnetic pole, power transmission shaft are wrapped together with the U.S. line paper of big width again,
Extend magnetic pole and be bonded on power transmission shaft outer wall in U.S. line paper rear and front end edge；Permanent magnet tears U.S. line paper after the completion of magnetizing.With
Permanent magnet is bundled into a permanent-magnetic clamp for being monolithically fabricated annular by U.S. line paper, prevents that permanent magnet is deviate from assembling process, prevents simultaneously
Magnetic fluid is sucked out.Permanent magnet magnetizes completion, and power transmission shaft loads before pedestal, and U.S. line paper is torn, and prevents U.S. line paper from loading base
Sealing property is influenceed in seat.
Another scheme, when the 4th step fixed permanent magnet, magnetic pole, power transmission shaft, is first less than the ring of permanent magnetism body length with width
Shape rubber strip is by all permanent magnet sets into a circle, and annulus rubber cincture outer wall is provided with sealing flange collar, then the front on power transmission shaft
The front end of magnetic pole and the back-end location of rear magnetic pole are set with prelocalization rubber ring and rear positioning rubber circle；Permanent magnet has magnetized
Cut into rear and pull down prelocalization rubber ring and rear positioning rubber circle, annulus rubber cincture be co-mounted to permanent magnet in pedestal and
Seal flange collar and base internal wall close fit.
Annulus rubber cincture can not only surround into all permanent magnets one permanent-magnetic clamp, and during assembling, annulus rubber cincture with
Permanent magnet loads in pedestal together, the sealing flange collar on ring-shaped rubber band and base internal wall close fit, substantially increases magnetic current
Sealing property after the assembling of body component.Prelocalization rubber ring and rear positioning rubber circle are positioned to magnetic fluid component, prevent axle
To movement, consequently facilitating the operation of magnetizing to permanent magnet.
Preferably, before annulus rubber cincture is set on permanent magnet, being filled between adjacent two permanent magnet in permanent-magnetic clamp outer ring
Annulus rubber cincture is set on permanent-magnetic clamp outer wall by fluid sealant, glue to be sealed after drying.Filling with sealant between adjacent two permanent magnet,
Be conducive to the positioning of permanent magnet, and make permanent-magnetic clamp outer wall smooth, annulus rubber cincture is set on permanent-magnetic clamp outer wall and more seal,
Be conducive to improving the sealing property after the assembling of magnetic fluid component.
Preferably, the 5th step power transmission shaft loads before pedestal, load O-ring on magnetic pole outer wall.The installation of O-ring,
Improve the static seal performance between magnetic pole and base internal wall.
Preferably, the 4th step permanent magnet supplements magnetic fluid after the completion of magnetizing between power transmission shaft outer wall and magnetic pole inwall.
Magnetic fluid fluid infusion operation is carried out after the completion of magnetizing again, it is ensured that there are enough magnetic fluids between magnetic pole and power transmission shaft, so as to ensure
Sealing property.
Preferably, permanent magnet is alnico magnet.Alnico magnet high temperature resistant.
Preferably, the 5th step power transmission shaft loads before pedestal, the annular groove in front of power transmission shaft outer wall upper magnetic pole is built-in
It is attached with back-up ring, and by back-up ring head and the tail two ends by connection sheet.Back-up ring is blocked to magnetic fluid, is prevented in running
Magnetic fluid splashes.
Preferably, being set with dust ring in power transmission shaft top base rear and front end position after the 7th step.Dust ring is installed to prevent
Only dust enters between power transmission shaft and pedestal.
Compared with prior art, the beneficial effects of the invention are as follows：Device for sealing magnetic fluid installation effectiveness is high, easy for installation,
Magnetic fluid component good seal performance after installation.
Brief description of the drawings
Fig. 1 is the mounted structural representation of magnetic fluid rotary sealing appts of embodiments of the invention 1；
Fig. 2 is the mounted structural representation of magnetic fluid rotary sealing appts of embodiments of the invention 2；
Fig. 3 is the structural representation of the magnetic fluid rotary sealing appts installation process of embodiments of the invention 2；
In figure：1st, permanent magnet, 2, magnetic fluid, 3, magnetic pole, 4, spacer ring, 5, fore bearing, 6, sleeve, 7, rear bearing, 8, spacing ring, 9,
End cap, 10, annulus rubber cincture, 11, sealing flange collar, 12, prelocalization rubber ring, 13, rear positioning rubber circle, 14, O-ring, 15, pass
Moving axis, 16, back-up ring, 17, dust ring.
Embodiment
Below by specific embodiment, and with reference to accompanying drawing, technical scheme is further described specifically：
Embodiment 1：A kind of installation method of magnetic fluid rotary sealing appts（Referring to accompanying drawing 1）, the first step, to columned permanent magnetism
Body 1 carries out demagnetization processing, and cleans up, and removes chip, permanent magnet is alnico magnet；Second step, pacifies on power transmission shaft 15
Fill and magnetic fluid 2 is smeared on the tooth form outer wall of position of magnetic pole, and magnetic pole 3 is installed；3rd step, by permanent magnet be arranged on two magnetic poles it
Between, the circle of close installation one permanent magnet constitutes the permanent-magnetic clamp of annular between two magnetic poles；4th step, fixed permanent magnet, magnetic pole, transmission
Axle, and permanent magnet is magnetized；5th step, is set with spacer ring 4 and fore bearing 5, and will pass successively from back to front on power transmission shaft
During moving axis is fitted into pedestal forward from pedestal rear end, spacer ring is connected between magnetic pole and front axle bearing outer-ring, and fore bearing base internal wall is tight
Close assembling；6th step, assembles sleeve 6 and rear bearing 7 successively in pedestal, rear bearing be installed tightly to power transmission shaft and pedestal it
Between, sleeve is connected between front axle bearing outer-ring and rear bearing outer ring；7th step, the rear bearing rear connection spacing ring on power transmission shaft
8, spacing ring is connected on bearing inner race, and connects end cap 9 in pedestal rear end, and end cap front end is connected on rear bearing outer ring.The
When four step fixed permanent magnets, magnetic pole, power transmission shaft, the U.S. line paper for being first less than permanent magnetism body length with width surrounds into all permanent magnets
One entirety；Permanent magnet, magnetic pole, power transmission shaft are wrapped together with the U.S. line paper of big width again, U.S. line paper rear and front end edge prolongs
Stretch out magnetic pole and be bonded on power transmission shaft outer wall；Permanent magnet tears U.S. line paper after the completion of magnetizing.5th step power transmission shaft load pedestal it
Before, O-ring 14 is loaded on magnetic pole outer wall.4th step permanent magnet is mended after the completion of magnetizing between power transmission shaft outer wall and magnetic pole inwall
Magnetize fluid.5th step power transmission shaft loads before pedestal, and back-up ring 16 is assembled in the annular groove in front of power transmission shaft outer wall upper magnetic pole,
And be attached at back-up ring head and the tail two ends by connection sheet.In power transmission shaft top base rear and front end position, suit is anti-after 7th step
Konisphere 17.
Embodiment 2：A kind of installation method of magnetic fluid rotary sealing appts（Referring to accompanying drawing 2, accompanying drawing 3）, its step and reality
Apply example 1 similar, when main difference is the 4th step fixed permanent magnet, magnetic pole, power transmission shaft in the present embodiment, be first less than with width
The annulus rubber cincture 10 of permanent magnetism body length is by all permanent magnet sets into a circle, and annulus rubber cincture outer wall is provided with sealing flange collar 11,
Then the front front end of magnetic pole and the back-end location of rear magnetic pole are set with prelocalization rubber ring 12 and rear fixed on power transmission shaft
Position rubber ring 13；Permanent magnet is cut after the completion of magnetizing and pulls down prelocalization rubber ring and rear positioning rubber circle, annulus rubber cincture with
Permanent magnet is co-mounted in pedestal and sealing flange collar and base internal wall close fit.Annulus rubber cincture is set on permanent magnet it
Before, annulus rubber cincture is set to permanent magnetism by the filling with sealant between adjacent two permanent magnet in permanent-magnetic clamp outer ring, glue to be sealed after drying
On ring outer wall.Other steps are same as Example 1.
Embodiment described above is two kinds of preferably schemes of the present invention, not makees any formal to the present invention
Limitation, also has other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (9)
1. a kind of installation method of magnetic fluid rotary sealing appts, it is characterized in that, the first step is moved back to columned permanent magnet
Magnetic treatment, and clean up, remove chip；Magnetic current is smeared on second step, the tooth form outer wall that position of magnetic pole is installed on power transmission shaft
Body, and magnetic pole is installed；3rd step, permanent magnet is arranged between two magnetic poles, and close installation one encloses permanent magnet structure between two magnetic poles
The permanent-magnetic clamp circularized；4th step, fixed permanent magnet, magnetic pole, power transmission shaft, and permanent magnet is magnetized；5th step, in transmission
Suit spacer ring and fore bearing successively from back to front on axle, and power transmission shaft is fitted into pedestal forward from pedestal rear end, spacer ring is abutted
Between magnetic pole and front axle bearing outer-ring, fore bearing base internal wall close fit；6th step, assembles sleeve with after successively in pedestal
Bearing, rear bearing is installed tightly between power transmission shaft and pedestal, and sleeve is connected between front axle bearing outer-ring and rear bearing outer ring；The
Seven steps, the rear bearing rear connection spacing ring on power transmission shaft, spacing ring is connected on bearing inner race, and in pedestal rear end connection end
Lid, end cap front end is connected on rear bearing outer ring.
2. a kind of installation method of magnetic fluid rotary sealing appts according to claim 1, it is characterized in that, the 4th step is fixed
When permanent magnet, magnetic pole, power transmission shaft, first with width be less than permanent magnetism body length U.S. line paper by all permanent magnets surround into one it is whole
Body；Permanent magnet, magnetic pole, power transmission shaft are wrapped together with the U.S. line paper of big width again, U.S. line paper rear and front end edge extends magnetic
Pole and it is bonded on power transmission shaft outer wall；Permanent magnet tears U.S. line paper after the completion of magnetizing.
3. a kind of installation method of magnetic fluid rotary sealing appts according to claim 1, it is characterized in that, the 4th step is fixed
When permanent magnet, magnetic pole, power transmission shaft, the annulus rubber cincture that permanent magnetism body length is first less than with width encloses all permanent magnet sets into one,
Annulus rubber cincture outer wall is provided with sealing flange collar, then the front end of front magnetic pole and the back-end location of rear magnetic pole on power transmission shaft
It is set with prelocalization rubber ring and rear positioning rubber circle；Permanent magnet is cut after the completion of magnetizing and pulls down prelocalization rubber ring with after
Positioning rubber circle, annulus rubber cincture is co-mounted in pedestal with permanent magnet and seals flange collar and base internal wall close fit.
4. a kind of installation method of magnetic fluid rotary sealing appts according to claim 3, it is characterized in that, annulus rubber cincture
Before being set on permanent magnet, the filling with sealant between adjacent two permanent magnet in permanent-magnetic clamp outer ring, by annular after glue drying to be sealed
Rubber strip is set on permanent-magnetic clamp outer wall.
5. a kind of installation method of magnetic fluid rotary sealing appts according to claim 1 or 2 or 3 or 4, it is characterized in that,
5th step power transmission shaft loads before pedestal, loads O-ring on magnetic pole outer wall.
6. a kind of installation method of magnetic fluid rotary sealing appts according to claim 1 or 2 or 3 or 4, it is characterized in that,
4th step permanent magnet supplements magnetic fluid after the completion of magnetizing between power transmission shaft outer wall and magnetic pole inwall.
7. a kind of installation method of magnetic fluid rotary sealing appts according to claim 1 or 2 or 3 or 4, it is characterized in that,
Permanent magnet is alnico magnet.
8. a kind of installation method of magnetic fluid rotary sealing appts according to claim 1 or 2 or 3 or 4, it is characterized in that,
5th step power transmission shaft loads before pedestal, and back-up ring is assembled in the annular groove in front of power transmission shaft outer wall upper magnetic pole, and back-up ring is first
Tail two ends are attached by connection sheet.
9. a kind of installation method of magnetic fluid rotary sealing appts according to claim 1 or 2 or 3 or 4, it is characterized in that,
After 7th step dust ring is set with power transmission shaft top base rear and front end position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710340592.5A CN107246477B (en) | 2017-05-15 | 2017-05-15 | A kind of installation method of magnetic fluid rotary sealing appts |
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| CN201710340592.5A CN107246477B (en) | 2017-05-15 | 2017-05-15 | A kind of installation method of magnetic fluid rotary sealing appts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274028A (en) * | 2019-05-20 | 2019-09-24 | 清华大学 | A kind of magnetic coupling transmission device for sealing magnetic fluid |
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| Publication number | Publication date |
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| CN107246477B (en) | 2018-11-02 |
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