CN208153544U - A kind of axial magnetic suspension bearing - Google Patents
A kind of axial magnetic suspension bearing Download PDFInfo
- Publication number
- CN208153544U CN208153544U CN201820355864.9U CN201820355864U CN208153544U CN 208153544 U CN208153544 U CN 208153544U CN 201820355864 U CN201820355864 U CN 201820355864U CN 208153544 U CN208153544 U CN 208153544U
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- CN
- China
- Prior art keywords
- outer ring
- rotor
- fixedly connected
- magnetic suspension
- suspension bearing
- 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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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model discloses a kind of axial magnetic suspension bearings, including outer ring and rotor, magnet is fixedly connected on the outside of the rotor, the magnet is fixedly connected with inner ring far from the side of rotor, the rotor is located in the inner ring of outer ring, the inner wall of the outer ring is equidistant to be fixedly connected with insulating bar, coil has been fixedly attached on the outside of the insulating bar, the inner wall of the outer ring is equidistant to be fixedly connected with casing, the inside activity of described sleeve pipe is plugged with buffer bar, and the buffer bar is connected with pulley by shaft far from the back side of outer ring inner wall one end.This device is when in use; pass through the setting of pulley; make this device when happening suddenly power-off; inner ring is moved downward due to the effect of gravity; to make the outside of inner ring be in contact with the outer surface of pulley, to make pulley rotation, make spring contraction; so as to avoid the severe frictions such as inner ring and coil, so that this device be made to have the advantages that can protecting when magnetic suspension bearing is powered off to rotor and stator.
Description
Technical field
The utility model relates to magnetic suspension bearing technical field, specially a kind of axial magnetic suspension bearing.
Background technique
Magnetic suspension bearing is to make to connect between rotor and stator without machinery in aerial by rotor suspension using magneticaction
Touching, principle are the line of magnetic inductions with magnetic flotation line at vertical, and central spindle is parallel with magnetic flotation line, so the weight of rotor is secured to
It on the track of operating, is shored using almost non-loaded central spindle toward anti-magnetic flotation line direction, it is hanging to form entire rotor, in fixation
On running rails, compared with traditional rolling bearing, sliding bearing and filmatic bearing, Mechanical Contact is not present in magnetic bearing, is turned
Son can run to very high revolving speed, with mechanical wear is small, low energy consumption, noise is small, the service life is long, is not necessarily to lubrication and without oily pollution
The advantages that, especially suitable in high speed, vacuum and the particular surroundings such as ultra-clean.
Often to the more demanding of electric power in the use process of magnetic suspension bearing, due to there is no machine between rotor and stator
Tool contact, often in the case where powering off, rotor can directly be fallen on the inner wall of stator due to gravity, this
It powers off magnetic suspension bearing once when running at high speed, irreversible injury will be caused to rotor and stator, this
Make many restrictions existing for the use of magnetic suspension bearing, generally require multinomial power supply, this also increases the uses of magnetic suspension bearing
Cost.
Utility model content
（One）The technical issues of solution
In view of the deficiencies of the prior art, the utility model provides a kind of axial magnetic suspension bearing, and having can be in magnetic suspension
The advantages that bearing protects rotor and stator when powering off, solves due to not having Mechanical Contact between rotor and stator, past
Toward in the case where powering off, rotor can directly be fallen on the inner wall of stator due to gravity, this also makes magnetic suspension
Bearing is once powered off when running at high speed, and will cause irreversible injury to rotor and stator, this also makes magnetic suspension
Many restrictions existing for the use of bearing generally require multinomial power supply, to improve asking for the use cost of magnetic suspension bearing
Topic.
（Two）Technical solution
To realize the above-mentioned purpose that can be protected when magnetic suspension bearing is powered off to rotor and stator, the utility model is mentioned
For following technical solution：A kind of axial magnetic suspension bearing, including outer ring and rotor are fixedly connected with magnetic on the outside of the rotor
Iron, the magnet are fixedly connected with inner ring far from the side of rotor, and the rotor is located in the inner ring of outer ring, the outer ring it is interior
Wall is equidistant to be fixedly connected with insulating bar, coil has been fixedly attached on the outside of the insulating bar, the inner wall of the outer ring is equidistant
It is fixedly connected with casing, the inside activity of described sleeve pipe is plugged with buffer bar, back of the buffer bar far from outer ring inner wall one end
Face is connected with pulley by shaft, and the side of the buffer bar is fixedly connected with support rod, and the support rod is close to outer ring
The side of inner wall is fixedly connected with spring, and the spring is fixedly connected far from one end that support is talked with the inner wall of outer ring, described slow
The middle part fixing sleeve of jumper bar is connected to lantern ring, and the lantern ring is fixedly connected with cushion close to the side of casing, the cushion with
Casing is adapted.
Preferably, the insulating bar totally eight, and eight insulating bars are isodistantly spaced the inner wall for being fixedly connected on outer ring.
Preferably, totally nine pieces of the magnet, and nine blocks of magnet are isodistantly spaced the outer surface for being fixedly connected on rotor.
Preferably, the inner ring is aluminum alloy material, and the magnet is Neodymium iron boron magnetic material.
Preferably, the bottom of the outer ring is fixedly connected with supporting table）, the two sides of the supporting table offer screw thread
Slot.
Preferably, the bottom of the supporting table is fixedly connected with supporting leg, and the supporting leg totally two, and two supporting legs
It is respectively fixedly connected with the two sides in supporting table bottom.
（Three）Beneficial effect
Compared with prior art, the utility model provides a kind of axial magnetic suspension bearing, has following beneficial effect：
1, the axial magnetic suspension bearing makes this dress by being used cooperatively for spring, casing, buffer bar, pulley and support rod
It sets when in use, by the setting of casing, slide buffer bar can on the inside of casing in the case where being subject to external force, lead to
The setting for crossing support rod and spring makes buffer bar impact force can be transmitted to spring by support rod in the case where being subject to external force
On, so that the contraction by spring absorbs impact force, by the setting of pulley, make this device when happening suddenly power-off,
Inner ring is since the effect of gravity moves downward, to make the outside of inner ring be in contact with the outer surface of pulley, so that pulley be made to turn
It is dynamic, make spring contraction, so as to avoid the severe frictions such as inner ring and coil, so that having this device can be disconnected in magnetic suspension bearing
The advantages that protecting when electric to rotor and stator solves due to not having Mechanical Contact between rotor and stator, is often sending out
In the case where raw power-off, rotor can directly be fallen on the inner wall of stator due to gravity, this also makes magnetic suspension bearing exist
It is once powered off when running at high speed, irreversible injury will be caused to rotor and stator, this also makes magnetic suspension bearing
Using existing many restrictions, multinomial power supply is generally required, thus the problem of improving the use cost of magnetic suspension bearing.
2, the axial magnetic suspension bearing is made this device when in use, is passed through by being used cooperatively for supporting table and thread groove
Supporting table is supported outer ring, to keep the support of outer ring more stable, avoid outer ring due to fixed not firm enough and
Caused by device the case where shaking make supporting table can be by external screw or threaded rod and outer by the setting of thread groove
Boundary's instrument is attached, and making this device, it is more convenient to use, this device is made more to have practicability.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is enlarged drawing at A in Fig. 1.
In figure：1 outer ring, 2 rotors, 3 magnet, 4 inner ring, 5 insulating bars, 6 coils, 7 casings, 8 buffer bars, 9 pulleys, 10 supports
Bar, 11 springs, 12 lantern rings, 13 cushions, 14 supporting tables, 15 thread grooves, 16 supporting legs.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of axial magnetic suspension bearing referring to FIG. 1-2, including outer ring 1 and rotor 2, the outside of rotor 2 are fixedly connected with
Magnet 3, totally nine pieces of magnet 3, and nine blocks of magnet 3 are isodistantly spaced the outer surface for being fixedly connected on rotor 2, magnet 3 is far from rotor 2
Side is fixedly connected with inner ring 4, and inner ring 4 is aluminum alloy material, and magnet 3 is Neodymium iron boron magnetic material, and inner ring 4 is aluminum alloy material
Design, make this device when in use, according to the low feature of the high weight of aluminum alloy material intensity, inner ring 4 made to guarantee that its is high-strength
The weight of inner ring 4 is greatly reduced while spending, to make the rotation enhanced convenience of rotor 2, magnet 3 is Neodymium iron boron magnetic material
Design, keep the intensity of magnet 3 higher, and Neodymium iron boron magnetic material has stronger magnetism, to make rotor 2 in outer ring 1
Suspend enhanced convenience in inner ring, and making this device, it is more convenient to use, and rotor 2 is located in the inner ring of outer ring 1, outer ring 1
Inner wall is equidistant to be fixedly connected with insulating bar 5, and insulating bar 5 totally eight, and eight insulating bars 5 are isodistantly spaced and are fixedly connected on outer ring
1 inner wall, the outside of insulating bar 5 have been fixedly attached coil 6, and the inner wall of outer ring 1 is equidistant to be fixedly connected with casing 7, casing 7
Inside activity is plugged with buffer bar 8, and buffer bar 8 is connected with pulley 9 by shaft far from the back side of 1 inner wall one end of outer ring,
Pulley 9 is soft rubber material, and pulley 9 is the design of soft rubber material, makes this device when in use, the outside of inner ring 4 exists
When being contacted with the outer surface of pulley 9, pulley 9 will not damage the outside of inner ring 4, to extend making for this device
With the service life, keep the use cost of this device more cheap, the side of buffer bar 8 is fixedly connected with support rod 10, support rod 10
It is fixedly connected with spring 11 close to the side of 1 inner wall of outer ring, the inner wall of spring 11 one end and outer ring 1 far from support what is said or talked about 10 is fixed
Connection, this device when in use, by the setting of casing 7, make buffer bar 8 can be in the case where being subject to external force in casing 7
Side is slided, and by the setting of support rod 10 and spring 11, makes buffer bar 8 that can pass through support rod in the case where being subject to external force
10 are transmitted to impact force on spring 11, so that the contraction by spring 11 absorbs impact force, pass through setting for pulley 9
It sets, makes this device when happening suddenly power-off, inner ring 4 is since the effect of gravity moves downward, to make outside and the pulley 9 of inner ring 4
Outer surface be in contact, so that pulley 9 be made to rotate, shrink spring 11, so as to avoid the equal severe frictions of inner ring 4 and coil 6,
To make this device have the advantages that can protecting when magnetic suspension bearing is powered off to rotor and stator, solve due to rotor
There is no Mechanical Contact between 2 and stator, often in the case where powering off, rotor 2 can directly be fallen due to gravity
Onto the inner wall of stator, this also powers off magnetic suspension bearing once when running at high speed, and will cause to rotor 2 and stator
Irreversible injury, this also makes many restrictions existing for the use of magnetic suspension bearing, generally requires multinomial power supply, to improve
The problem of use cost of magnetic suspension bearing, the middle part fixing sleeve of buffer bar 8 is connected to lantern ring 12, lantern ring 12 is close to casing 7
Side is fixedly connected with cushion 13, and cushion 13 is adapted with casing 7, and the bottom of outer ring 1 is fixedly connected with supporting table 14, branch
The two sides of support platform 14 offer thread groove 15, this device when in use, by supporting table 14 is supported outer ring 1, thus
Keep the support of outer ring 1 more stable, avoid outer ring 1 as fixed not firm enough and caused by device the case where shaking, lead to
The setting for crossing thread groove 15 be attached supporting table 14 can by external screw or threaded rod and extraneous instrument, make this
It is more convenient to use for device, this device is made more to have practicability, and the bottom of supporting table 14 is fixedly connected with supporting leg 16,
Supporting leg 16 totally two, and two supporting legs 16 are respectively fixedly connected in the two sides of 14 bottom of supporting table.
The electric elements occurred in this article are electrically connected with extraneous main controller and 220V alternating current, and main controller can be meter
Calculation machine etc. plays the conventionally known equipment of control.
In conclusion the axial magnetic suspension bearing is when in use, by the setting of casing 7, make buffer bar 8 can be by outer
It is slided in the case where power in the inside of casing 7, by the setting of support rod 10 and spring 11, makes buffer bar 8 by outer
Impact force can be transmitted on spring 11 by support rod 10 in the case where power, thus by the contraction of spring 11 by impact force
Absorbed, by the setting of pulley 9, make this device happen suddenly power-off when, inner ring 4 since the effect of gravity moves downward, from
And the outside of inner ring 4 and the outer surface of pulley 9 is made to be in contact, so that pulley 9 be made to rotate, shrink spring 11, so as to avoid
The severe frictions such as inner ring 4 and coil 6, so that rotor 2 and stator can be carried out when magnetic suspension bearing powers off by having this device
The advantages that protection, solves due to not having Mechanical Contact between rotor 2 and stator, often in the case where powering off, rotor 2
It can directly be fallen to due to gravity on the inner wall of stator, it is disconnected that this occurs that magnetic suspension bearing once when running at high speed
Electricity will cause irreversible injury to rotor 2 and stator, this also makes many restrictions existing for the use of magnetic suspension bearing,
Multinomial power supply is generally required, thus the problem of improving the use cost of magnetic suspension bearing.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
Claims (6)
1. a kind of axial magnetic suspension bearing, including outer ring（1）And rotor（2）, it is characterised in that：The rotor（2）Outside it is solid
Surely it is connected with magnet（3）, the magnet（3）Far from rotor（2）Side be fixedly connected with inner ring（4）, the rotor（2）It is located at
Outer ring（1）Inner ring in, the outer ring（1）Inner wall equidistant be fixedly connected with insulating bar（5）, the insulating bar（5）It is outer
Side has been fixedly attached coil（6）, the outer ring（1）Inner wall equidistant be fixedly connected with casing（7）, described sleeve pipe（7）It is interior
Side activity is plugged with buffer bar（8）, the buffer bar（8）Far from outer ring（1）The back side of inner wall one end is flexibly connected by shaft
There is pulley（9）, the buffer bar（8）Side be fixedly connected with support rod（10）, the support rod（10）Close to outer ring（1）It is interior
The side of wall is fixedly connected with spring（11）, the spring（11）Far from support rod（10）One end and outer ring（1）Inner wall it is solid
Fixed connection, the buffer bar（8）Middle part fixing sleeve be connected to lantern ring（12）, the lantern ring（12）Close to casing（7）Side it is solid
Surely it is connected with cushion（13）, the cushion（13）With casing（7）It is adapted.
2. a kind of axial magnetic suspension bearing according to claim 1, it is characterised in that：The insulating bar（5）Totally eight, and
Eight insulating bars（5）It is isodistantly spaced and is fixedly connected on outer ring（1）Inner wall.
3. a kind of axial magnetic suspension bearing according to claim 1, it is characterised in that：The magnet（3）Totally nine pieces, and nine
Block magnet（3）It is isodistantly spaced and is fixedly connected on rotor（2）Outer surface.
4. a kind of axial magnetic suspension bearing according to claim 1, it is characterised in that：The inner ring（4）For aluminium alloy material
Matter, the magnet（3）For Neodymium iron boron magnetic material.
5. a kind of axial magnetic suspension bearing according to claim 1, it is characterised in that：The outer ring（1）Bottom fix
It is connected with supporting table（14）, the supporting table（14）Two sides offer thread groove（15）.
6. a kind of axial magnetic suspension bearing according to claim 5, it is characterised in that：The supporting table（14）Bottom it is solid
Surely it is connected with supporting leg（16）, the supporting leg（16）Totally two, and two supporting legs（16）It is respectively fixedly connected in supporting table
（14）The two sides of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355864.9U CN208153544U (en) | 2018-03-16 | 2018-03-16 | A kind of axial magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355864.9U CN208153544U (en) | 2018-03-16 | 2018-03-16 | A kind of axial magnetic suspension bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153544U true CN208153544U (en) | 2018-11-27 |
Family
ID=64391656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820355864.9U Expired - Fee Related CN208153544U (en) | 2018-03-16 | 2018-03-16 | A kind of axial magnetic suspension bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208153544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184738A (en) * | 2021-04-20 | 2021-07-30 | 江苏和信石油机械有限公司 | Lifting device for drilling machine system |
-
2018
- 2018-03-16 CN CN201820355864.9U patent/CN208153544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184738A (en) * | 2021-04-20 | 2021-07-30 | 江苏和信石油机械有限公司 | Lifting device for drilling machine system |
| CN113184738B (en) * | 2021-04-20 | 2022-06-28 | 江苏和信石油机械有限公司 | Lifting device for drilling machine system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181127 Termination date: 20210316 |