CN208935392U - A kind of magnetic sealing device - Google Patents
A kind of magnetic sealing device Download PDFInfo
- Publication number
- CN208935392U CN208935392U CN201821756319.7U CN201821756319U CN208935392U CN 208935392 U CN208935392 U CN 208935392U CN 201821756319 U CN201821756319 U CN 201821756319U CN 208935392 U CN208935392 U CN 208935392U
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- ring
- rotating ring
- seal
- seat
- stationary ring
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Abstract
The utility model discloses a kind of magnetic sealing devices of field of sealing technology.The device includes the rotating ring and stationary ring being nested on line shaft, bearing is housed on line shaft, the machine envelope seat for compressing bearing is equipped on the outside of stationary ring, the periphery that machine seals seat is equipped with first seal, the inner circumferential that machine envelope seat is used to be set with stationary ring is equipped with the second seal groove, second seal is installed, stationary ring is mounted on machine by second seal and seals on seat in the second seal groove；The inner circumferential that rotating ring is used to be set with line shaft is equipped with third seal groove, and third seal groove is equipped with third sealing element, and rotating ring is by third sealing element close-fitting on line shaft；The periphery of rotating ring is set with the magnetic force cap being pressed on rotating ring on stationary ring, and one end and rotating ring end of magnetic force cap are inconsistent, and other end face machine seals seat setting and there are the first gap, and the one side that machine seals seat face magnetic force cap is equipped with the magnet attracted with magnetic force cap.The utility model has the advantages that can prolong the service life.
Description
Technical field
The utility model relates to field of sealing technology, in particular to a kind of magnetic sealing device.
Background technique
Existing magnetic sealing device is commonly used in the equipment such as the pump housing, centrifuge and compressor, and magnetic sealing device is by dynamic
The end face magnetic picture of ring and stationary ring picks up sealing function, and stationary ring is permanent-magnet material, and rotating ring is to be bumped into soft magnetism material by carbon graphite ring
It is constituted in material ring, guarantees that graphite annulus and rotating ring are tight by magnetic attracting force between stationary ring (magnetic material) and rotating ring (soft magnetic materials)
Closely connected conjunction is still primarily present following problem, and long-time service is easily damaged, and high-speed friction is particularly easy between stationary ring and rotating ring
Abrasion is generated, and directly affects the magnetic force between rotating ring and stationary ring, rotating ring and the stationary ring replacement for needing to wear after damage use,
Dismounting and change is particularly troublesome, repairs very inconvenient.
Utility model content
The purpose of the utility model is to provide a kind of magnetic sealing devices to prolong the service life.
In order to realize above-mentioned purpose of utility model, the following technical solution that the utility model magnetic sealing device uses:
A kind of magnetic sealing device is equipped with bearing including the rotating ring and stationary ring being nested on line shaft on line shaft, described
The machine envelope seat for compressing bearing is equipped on the outside of stationary ring, the periphery that machine seals seat is equipped with first seal, and machine envelope seat is for being set with stationary ring
Inner circumferential is equipped with the second seal groove, and second seal is equipped in the second seal groove, and stationary ring is mounted on machine by second seal and seals
On seat；The inner circumferential that rotating ring is used to be set with line shaft is equipped with third seal groove, and third seal groove is equipped with third sealing element, and rotating ring is logical
Third sealing element close-fitting is crossed on line shaft；The periphery of the rotating ring is set with the magnetic force cap being pressed on rotating ring on stationary ring, magnetic
One end of power cap and rotating ring end are inconsistent, and other end face machine seals seat setting and there are the first gap, and machine seals seat face magnetic force
The one side of cap is equipped with the magnet attracted with magnetic force cap.For the utility model by being set with magnetic force cap in the periphery of rotating ring, machine seals seat
One side setting and the attracted magnet of magnetic force cap of face magnetic force cap, there are the first gaps between magnetic force cap and machine envelope seat, so that
Friction between rotating ring and stationary ring will not influence the abrasion between magnetic force cap and magnet, prolong the service life, and reduce maintenance.
Preferably, described rotating ring one end and stationary ring are inconsistent, and there are the second gap, the second gaps between the other end and bearing
Washer is inside installed.By the setting of washer, the preset clearance of rotating ring and stationary ring is controlled with gasket thickness, when rotating ring and stationary ring are high
After speed friction generates abrasion, rotating ring axial movement is pushed by the suction of magnetic force cap and magnet, rotating ring is pressed on stationary ring.
Preferably, the magnet is arranged and is evenly distributed with multiple along the circumferential direction of machine envelope seat.Circumferential being arranged simultaneously of the magnet along machine envelope seat
It is uniformly distributed multiple, guarantee magnet to the magnetic attraction of magnetic force cap.
Preferably, the first seal, second seal, third sealing element are O-ring.First seal, second
Sealing element, third sealing element are O-ring, and the sealing effect after seat installation is sealed by the setting offer machine of first seal；The
Stationary ring is mounted on machine envelope seat, so that stationary ring will not follow the rotation of line shaft and rotate, while right by the setting of two sealing elements
It seals between stationary ring and machine envelope seat；The setting of third sealing element enables rotating ring by rotating ring close-fitting on line shaft
Rotate with line shaft, while sealing between rotating ring and line shaft, by first seal, second seal,
The setting of third sealing element, it is multi-stage sealed, guarantee leakproofness, improves sealing effect.
Compared with prior art, the utility model has the beneficial effects that:
1, for the utility model by being set with magnetic force cap in the periphery of rotating ring, machine seals one side setting and the magnetic of seat face magnetic force cap
The attracted magnet of power cap, there are the first gaps between magnetic force cap and machine envelope seat, wherein is inhaled by magnetism of the magnet to magnetic force cap
Power so that magnetic force cap is pressed against rotating ring, by rotating ring toward compressing on stationary ring, stationary ring is closely contradicted with rotating ring together with, this
When, the composition friction that contacts with each other of rotating ring and stationary ring is secondary, bear high-speed friction, also, due to the magnet of magnetic force cap and machine envelope seat it
Between there are the first gaps, the friction between rotating ring and stationary ring will not influence the abrasion between magnetic force cap and magnet, extends and uses the longevity
Life reduces maintenance；
2, the utility model is compact-sized, saves space, and the setting of seat is sealed by machine, not only acts as the work for compressing bearing
With, meanwhile, stationary ring close-fitting is prevented stationary ring from rotating by the purpose of machine envelope seat on machine envelope seat；
3, the utility model is easy to assembly, installation easy to disassemble, facilitates maintenance, loaded onto installation Shi Ji envelope seat stationary ring,
Then machine envelope seat is loaded onto and compresses bearing by rotating ring, magnetic force cap, washer, overall structure is simple, easy disassembly；
4, the utility model plays machine by first seal and seals seat sealing function；The setting of second seal is to stationary ring and machine
It seals between envelope seat, meanwhile, stationary ring is mounted on by machine by second seal and is sealed on seat, so that stationary ring will not sway in synchrony
The rotation of power axis and rotate；The setting of third sealing element seals between rotating ring and line shaft, meanwhile, it is close by third
Sealing will enable rotating ring to rotate with line shaft by rotating ring close-fitting on line shaft, by first seal, second close
The setting of sealing, third sealing element, multi-stage sealed, sealed reliable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the portion the A enlarged drawing of Fig. 1.
Wherein, 1 washer, 2 third sealing elements, 3 stationary rings, 4 rotating rings, 5 second seals, 6 magnetic force caps, 7 magnet, 8 machines seal seat,
9 first seals, 10 bearings, 11 first gaps, 12 second seal grooves, 13 third seal grooves, 14 line shafts.
Specific embodiment
With reference to embodiment, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Bright the utility model rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art
Member falls within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
As shown in Figs. 1-2, a kind of magnetic sealing device, including the rotating ring and stationary ring being nested on line shaft 14, line shaft
It goes up and bearing is housed, the material of rotating ring 4 and stationary ring 3 can be alloy, ceramics, graphite, silicon carbide, silicon nitride or other macromolecule materials
Material etc., the rubbing surface of rotating ring 4 and stationary ring 3 must be polished up to 1 grade of light belt, and 4 one end of rotating ring and stationary ring 3 are inconsistent, the other end and axis
It holds between 10 there are the second gap, washer 1 is installed in the second gap；The machine envelope seat for compressing bearing, machine envelope are equipped on the outside of stationary ring
The periphery of seat is equipped with first seal, and first seal 9 is O-ring, and it is close that the inner circumferential that machine envelope seat is used to be set with stationary ring is equipped with second
Sealing groove 12 is equipped with second seal in second seal groove, and second seal 5 is O-ring, and stationary ring passes through second seal installation
On machine envelope seat；The inner circumferential that rotating ring is used to be set with line shaft is equipped with third seal groove 13, and third seal groove is equipped with third sealing
Part, third sealing element 2 are O-ring, and rotating ring is by third sealing element close-fitting on line shaft；The periphery of rotating ring 4 is set with will be dynamic
Ring 4 is pressed on the magnetic force cap 6 on stationary ring 3, and one end and 4 end of rotating ring of magnetic force cap 6 are inconsistent, and other end face machine envelope seat 8 is set
It sets and there are the first gap 11, the one side of machine envelope 8 face magnetic force cap 6 of seat is equipped with the magnet 7 attracted with magnetic force cap 6,7 edge of magnet
Machine seals the circumferential of seat 8 and is arranged and is evenly distributed with multiple.
The specific work process and principle of the utility model: magnet 7 and magnetic force cap 6 attracts each other and there are the first gaps
11, when line shaft 14 rotates, line shaft 14 drives rotating ring 4 to rotate together, and magnet 7 and attracting each other for magnetic force cap 6 can make
Rotating ring 4 and stationary ring 3 remain certain pressure, and rotating ring 4 is close to stationary ring 3 and is made rotating motion by the drive of line shaft 14, and pass through the
The setting of three sealing elements 2 provides the leakproofness between rotating ring 4 and line shaft 14, provides stationary ring 3 by the setting of second seal 5
Leakproofness between machine envelope seat 8, is provided by the setting of first seal 9 and is mounted between the machine envelope seat 8 of equipment and equipment
Leakproofness after installation, it is multi-stage sealed, guarantee leakproofness, improves sealing effect.
Claims (4)
1. a kind of magnetic sealing device, it is characterised in that: including the rotating ring and stationary ring being nested on line shaft, be equipped on line shaft
Bearing, the stationary ring outside are equipped with the machine envelope seat for compressing bearing, and machine seals the periphery of seat equipped with first seal, and machine envelope seat is for covering
The inner circumferential for filling stationary ring is equipped with the second seal groove, and second seal is equipped in the second seal groove, and stationary ring is pacified by second seal
On machine envelope seat；The inner circumferential that rotating ring is used to be set with line shaft is equipped with third seal groove, and third seal groove is equipped with third sealing
Part, rotating ring is by third sealing element close-fitting on line shaft；The periphery of the rotating ring, which is set with, is pressed on rotating ring on stationary ring
Magnetic force cap, one end and rotating ring end of magnetic force cap are inconsistent, and other end face machine seals seat setting and there are the first gap, and machine seals seat
The one side of face magnetic force cap is equipped with the magnet attracted with magnetic force cap.
2. magnetic sealing device according to claim 1, it is characterised in that: described rotating ring one end and stationary ring are inconsistent, separately
There are the second gap between one end and bearing, washer is installed in the second gap.
3. magnetic sealing device according to claim 1, it is characterised in that: circumferential being arranged simultaneously of the magnet along machine envelope seat
It is uniformly distributed multiple.
4. magnetic sealing device according to claim 1, it is characterised in that: the first seal, second seal,
Three sealing elements are O-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821756319.7U CN208935392U (en) | 2018-10-29 | 2018-10-29 | A kind of magnetic sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821756319.7U CN208935392U (en) | 2018-10-29 | 2018-10-29 | A kind of magnetic sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208935392U true CN208935392U (en) | 2019-06-04 |
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ID=66726180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821756319.7U Active CN208935392U (en) | 2018-10-29 | 2018-10-29 | A kind of magnetic sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208935392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623110A (en) * | 2020-06-10 | 2020-09-04 | 合肥工业大学 | Magnetic sealing device for speed reducer |
-
2018
- 2018-10-29 CN CN201821756319.7U patent/CN208935392U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623110A (en) * | 2020-06-10 | 2020-09-04 | 合肥工业大学 | Magnetic sealing device for speed reducer |
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