CN207212943U - Permanent magnetism type magnetic suspension bearing - Google Patents
Permanent magnetism type magnetic suspension bearing Download PDFInfo
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- CN207212943U CN207212943U CN201720610266.7U CN201720610266U CN207212943U CN 207212943 U CN207212943 U CN 207212943U CN 201720610266 U CN201720610266 U CN 201720610266U CN 207212943 U CN207212943 U CN 207212943U
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Abstract
A kind of permanent magnetism type magnetic suspension bearing, including outer magnetic ring and internal magnetic ring, one of described outer magnetic ring and internal magnetic ring are fixedly installed on a rotor to be rotated with the rotor, the outer magnetic ring is sheathed on the radial outside of the internal magnetic ring, there is a gap between the outer magnetic ring and the internal magnetic ring, the outer magnetic ring includes the first outer shroud for having respective magnetizing direction and arranging successively vertically, second outer shroud and the 3rd outer shroud, the internal magnetic ring includes the first inner ring for having respective magnetizing direction and arranging successively vertically, second inner ring and the 3rd inner ring, the outer magnetic ring and internal magnetic ring are configured so that between the outer magnetic ring and internal magnetic ring while produce an axial thrust and a radial thrust.
Description
Technical field
A kind of bearing is the utility model is related to, more particularly to a kind of permanent magnetism type magnetic suspension bearing.
Background technology
There is Relative friction or rolling friction in current most bearing, no matter how precision manufactureing or can have damage
Consumption.
Magnetic suspension bearing is a kind of non-contact type bearing, so, between the part of two relative motions in this kind of bearing
In the absence of abrasion or frictional resistance very little so that this kind of bearing can support the axle of high-speed rotation, can reduce noise and fortune again
Row cost.It is to utilize the mutually exclusive caused radial load of inside and outside two blocks of annular magnets mostly for existing magnetic suspension bearing
Force what it suspended.However, because bearing is the part for support rotating shaft, and this kind of bearing was not provided with axially
The axial repulsive force of protection is carried, and rotary shaft during band dynamic load rotates together while can also produce axially eccentric power,
So rotary shaft axial dipole field is easily caused using the bearing, and rotary shaft axial dipole field can influence the normal operation of bearing.
Therefore, how to solve magnetic suspension bearing axial dipole field occurs in the running is that those skilled in the art are urgently to be resolved hurrily
Problem.
Utility model content
In view of this, the utility model proposes a kind of permanent magnetism type magnetic suspension axle that axial limiting can be carried out to magnetic suspension bearing
Hold.
One of a kind of permanent magnetism type magnetic suspension bearing, including outer magnetic ring and internal magnetic ring, the outer magnetic ring and internal magnetic ring are solid
Dingan County is filled on a rotor to be rotated with the rotor, and the outer magnetic ring is sheathed on the radial outside of the internal magnetic ring, institute
Stating has a gap between outer magnetic ring and the internal magnetic ring, the outer magnetic ring is included with respective magnetizing direction and vertically successively
The first outer shroud, the second outer shroud and the 3rd outer shroud of arrangement, the internal magnetic ring are included with respective magnetizing direction and vertically successively
The first inner ring, the second inner ring and the 3rd inner ring of arrangement, the outer magnetic ring and internal magnetic ring are configured so that the outer magnetic ring and interior
An axial thrust and a radial thrust are produced between magnet ring simultaneously.
In one embodiment, the outer magnetic ring is hollow cylindrical, and the relatively described outer magnetic ring of the internal magnetic ring has an axle
To skew.
In one embodiment, the outer magnetic ring is identical with the width of internal magnetic ring.
In one embodiment, first outer shroud is corresponding with first inner ring and width vertically is identical, and described
Two outer shrouds are corresponding with second inner ring and width vertically is identical, and the 3rd outer shroud is corresponding with the 3rd inner ring and edge
The width of axial direction is identical.
In one embodiment, the outer magnetic ring is the first outer magnetic ring, and the internal magnetic ring is the first internal magnetic ring, the magneto
It is fixed that magnetic suspension bearing also includes one of the second outer magnetic ring and the second internal magnetic ring, second outer magnetic ring and the second internal magnetic ring
It is attached on the rotor to be rotated with the rotor, second outer magnetic ring is sheathed on the radial direction of second internal magnetic ring
Outside, there is a gap, first outer magnetic ring and the first internal magnetic ring between second outer magnetic ring and second internal magnetic ring
The first axial location of the rotor is arranged on, second outer magnetic ring and the second internal magnetic ring are arranged on the of the rotor
Two axial locations, first axial location and the second axial location are at a distance, and second outer magnetic ring includes having respectively
The 4th outer shroud, the 5th outer shroud and the 6th outer shroud arranged vertically from magnetizing direction and successively, the internal magnetic ring include having respectively
The 4th inner ring, the 5th inner ring and the 6th inner ring arranged vertically from magnetizing direction and successively.
In one embodiment, first outer shroud and the first inner ring are axial charging and magnetizing direction is identical, to cause
State the first outer shroud and one axially and radially repulsive force is applied to first inner ring；Second outer shroud and the second inner ring are filled for radial direction
Magnetic and magnetizing direction are on the contrary, to cause second outer shroud to apply a radial direction repulsive force to second inner ring；Outside described 3rd
Ring and the 3rd inner ring are axial charging and magnetizing direction is identical, to cause the 3rd outer shroud to apply an axle to the 3rd inner ring
To with radial direction repulsive force；4th outer shroud and the 4th inner ring are axial charging and magnetizing direction is identical, to cause the described 4th
Outer shroud applies an axially and radially repulsive force to the 4th inner ring；5th outer shroud and the 5th inner ring are radial magnetizing and filled
Magnetic direction is on the contrary, to cause the 5th outer shroud to apply a radial direction repulsive force to the 5th inner ring；6th outer shroud and
Six inner ring are axial charging and magnetizing direction is identical, to cause the 6th outer shroud to apply an axial direction and footpath to the 6th inner ring
To repulsive force.
In one embodiment, relatively described first outer magnetic ring of first internal magnetic ring is towards close to second axial location
Side skew；A lateral deviation of relatively described second outer magnetic ring of second internal magnetic ring towards close first axial location
Move.
In one embodiment, first outer shroud and the magnetizing direction of the first inner ring are axially away from the second place
Direction, or first outer shroud and the magnetizing direction of the first inner ring are the direction axially adjacent to the second place；Described
The magnetizing direction of two outer shrouds is the direction radially adjacent to the rotor, and the magnetizing direction of second inner ring is radially away from institute
State the direction of rotor；Or the magnetizing direction of second outer shroud be radially away from the rotor direction, described second
The magnetizing direction of inner ring is the direction radially adjacent to the rotor；3rd outer shroud and the magnetizing direction of the 3rd inner ring are axle
To close to the direction of the second place, or the 3rd outer shroud and the magnetizing direction of the 3rd inner ring are axially away from described the
The direction of two positions；4th outer shroud and the magnetizing direction of the 4th inner ring are the direction axially adjacent to the first position, or
4th outer shroud described in person and the magnetizing direction of the 4th inner ring are the direction axially away from the first position；5th outer shroud
Magnetizing direction is the direction radially adjacent to the rotor, and the magnetizing direction of the 5th inner ring is radially away from the rotor
Direction；Or the magnetizing direction of the 5th outer shroud is the direction radially away from the rotor, the 5th inner ring is filled
Magnetic direction is the direction radially adjacent to the rotor；6th outer shroud and the magnetizing direction of the 6th inner ring is axially away from institutes
The direction of first position is stated, or the 6th outer shroud and the magnetizing direction of the 6th inner ring are axially adjacent to the first position
Direction.
In one embodiment, relatively described first outer magnetic ring of first internal magnetic ring is directed away from second axial location
Side skew；Relatively described second outer magnetic ring of second internal magnetic ring is directed away from a lateral deviation of first axial location
Move.
In summary, the utility model proposes a kind of permanent magnetism type magnetic suspension bearing.There is an axial dipole field using two
Outer magnetic ring and internal magnetic ring, wherein outer magnetic ring are sheathed on internal magnetic ring, outer magnetic ring and internal magnetic ring include respectively three it is radially corresponding and
The single polar body of the spacing compression of one, magnetizes to single polar body so that outer magnetic ring produces radially-inwardly and axle simultaneously to internal magnetic ring
To repulsive force.The outer magnetic ring of the first axial location and the second axial location on rotor acts power to internal magnetic ring respectively
So that internal magnetic ring or outer magnetic ring reach the effect of suspension, while axial limiting is carried out to rotor.Axial force needed for rotor
Determined with the size of radial load by the magnetic field size and outer magnetic ring of magnet ring and the axial offset of internal magnetic ring.Magnetic of the present utility model
Suspension bearing by the magnet ring of each different magnetizing directions be co-axially mounted and so that rotating shaft integrated suspension, it is real without any contact
Existing lossless rotation.With advantages below：
1. due to there is no Mechanical Contact between rotor and stator, therefore in the absence of abrasion, it is not necessary to lubricate, run noise
It is small, it is allowed to rotor high speed, ultrahigh speed rotation；
2. magnetic suspension bearing only has very little resistance for rotor rotation, beneficial to energy-conservation；
3. need not power oil supply system, directly just run, it is convenient and swift；
4. suitable for clean exigent application scenario, so-called green operation is realized；
5. it can be used in rugged environment.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the embodiment of magnetic suspension bearing one of the present utility model.
Fig. 2 is the cross-sectional view of another embodiment of magnetic suspension bearing of the present utility model.
Embodiment
Before describing the embodiments in more detail, it should be understood that the utility model is not limited in the application hereafter or accompanying drawing
Described in detailed construction or arrangement of elements.The utility model can be the embodiment that other manner is realized.Moreover, it should manage
Solution, wording used herein and term are solely for describing purposes, should not the explanation of being construed as limiting property." bag used herein
Include ", "comprising", the similar wording such as " having " meant comprising items listed thereafter, its equivalent and other additional things.It is special
It is not that, when describing " certain element ", the utility model does not limit the quantity of the element as one, can also include more
It is individual.Directional terms, such as "left", "right", " on ", " under " etc. simply illustrate with reference to the angle of diagram, not to this reality
Limited with new.
Permanent magnetism type magnetic suspension bearing of the present utility model is using the attracting principle of permanent magnet homopolar-repulsion, heteropole, by centre
Rotating shaft suspend, and utilize the axial movement of the symmetrical mutual rotation-limited body of axial repulsive force in rotor both ends.
The utility model proposes a kind of permanent magnetism type magnetic suspension bearing, including outer magnetic ring and internal magnetic ring, outer magnetic ring and internal magnetic ring
One of them is fixedly installed on a rotor to be rotated with rotor.Outer magnetic ring is sheathed on the radial outside of internal magnetic ring, outer magnetic
There is a gap to allow to relatively rotate between the two between ring and internal magnetic ring, and outer magnetic ring and internal magnetic ring are configured so that outer magnetic
An axial thrust and a radial thrust are produced between ring and internal magnetic ring simultaneously, make it that one of outer magnetic ring and internal magnetic ring are outstanding
It is floating.
As shown in figure 1, the rotor is a rotating shaft 10, the permanent magnetism type magnetic suspension bearing is installed including twisted rotary shaft 10
, the first outer magnetic ring 12 and the first internal magnetic ring 14 and the second axle positioned at rotating shaft 10 of the first axial location positioned at rotating shaft 10
To the second outer magnetic ring 16 and the second internal magnetic ring 18 of position, wherein between the first axial location and the second axial location of rotating shaft 10
Every a distance.
In an illustrated embodiment, the first outer magnetic ring 12 is hollow cylindrical, and the first outer magnetic ring 12 is fixed with the external world and connected
Connect.First internal magnetic ring 14 is fixedly installed to be rotated with rotating shaft 10 in rotating shaft 10, and the first outer magnetic ring 12 is sheathed on the first internal magnetic ring
14 radial outside, there is a gap 20 to allow relative between the two turn between the first outer magnetic ring 12 and the first internal magnetic ring 14
It is dynamic.First outer magnetic ring 12 and the first internal magnetic ring 14 are configured so that between the first outer magnetic ring 12 and the first internal magnetic ring 14 while produced
One axial thrust and a radial thrust.
Specifically, the first outer magnetic ring 12 includes having respective magnetizing direction and vertically arrangement and one successively from left to right
The first outer shroud 22, the second outer shroud 24 and the 3rd outer shroud 26 of the spacing compression of body.First internal magnetic ring 14 is included vertically from left to right
The first inner ring 28, the second inner ring 30 and the 3rd inner ring 32 of arrangement and the spacing compression of one successively.Wherein, the second outer shroud 24 and
Two inner ring 30 are the single polar body with strong magnetic.In an illustrated embodiment, the first outer magnetic ring 12 and the first internal magnetic ring 14 are along rotating shaft
Width on 10 axial directions is identical, and the first outer shroud 22 and the first inner ring 28 are corresponding and width vertically is identical, the second outer shroud 24 with
Second inner ring 30 is corresponding and width vertically is identical, and the 3rd outer shroud 26 is corresponding with the 3rd inner ring 32 and width phase vertically
Together.
In the present embodiment, the first internal magnetic ring 14 has an axial dipole field, the number of offset relative to the first outer magnetic ring 12
Mainly determined by axial force, axial force is bigger, and the offset is smaller, but not is 0.Therefore, outside the first inner ring 28 relative first
Ring 22 also has an axial dipole field, and 30 relative second outer shroud 24 of the second inner ring also has an axial dipole field, and the 3rd inner ring 32 is relative
3rd outer shroud 26 also has an axial dipole field, and the axial offset of three is identical.
It should be appreciated that in an illustrated embodiment, the first internal magnetic ring 14 has axially relative to the first outer magnetic ring 12
Skew, but it is only for preferred embodiment of the present utility model, in order to so that the first internal magnetic ring 14 and the first outer magnetic ring
The repulsive force on axial direction is preferably produced between 12, in other embodiments, according to the shape and construction of magnet ring, the first outer magnetic ring
12 and first internal magnetic ring 14 may be designed in no axial dipole field.
In an illustrated embodiment, the second outer magnetic ring 16 is hollow cylindrical, and the second outer magnetic ring 16 is fixed with the external world and connected
Connect.Second internal magnetic ring 18 is fixedly installed to be rotated with rotating shaft 10 in rotating shaft 10, and the second outer magnetic ring 16 is sheathed on the second internal magnetic ring
18 radial outside, there is a gap 34 to allow relative between the two turn between the second outer magnetic ring 16 and the second internal magnetic ring 18
It is dynamic.Second outer magnetic ring 16 and the second internal magnetic ring 18 are configured so that between the second outer magnetic ring 16 and the second internal magnetic ring 18 while produced
One axial thrust and a radial thrust.
Specifically, the second outer magnetic ring 16 includes having respective magnetizing direction and vertically arrangement and one successively from left to right
The 4th outer shroud 36, the 5th outer shroud 38 and the 6th outer shroud 40 of the spacing compression of body.Second internal magnetic ring 18 is included vertically from left to right
The 4th inner ring 42, the 5th inner ring 44 and the 6th inner ring 46 of arrangement and the spacing compression of one successively.Wherein, the 5th outer shroud 38 and
Five inner ring 44 are the single polar body with strong magnetic.In an illustrated embodiment, the second outer magnetic ring 16 and the second internal magnetic ring 18 are along rotating shaft
Width on 10 axial directions is identical, and the 4th outer shroud 36 and the 4th inner ring 42 are corresponding and width vertically is identical, the 5th outer shroud 38 with
5th inner ring 44 is corresponding and width vertically is identical, and the 6th outer shroud 40 is corresponding with the 6th inner ring 46 and width phase vertically
Together.
In the present embodiment, the second internal magnetic ring 18 has an axial dipole field, the number of offset relative to the second outer magnetic ring 16
Mainly determined by axial force, axial force is bigger, and the offset is smaller, but not is 0.Therefore, outside the 4th inner ring 42 the relative 4th
Ring 36 also has an axial dipole field, and 44 relative 5th outer shroud 38 of the 5th inner ring also has an axial dipole field, and the 6th inner ring 46 is relative
6th outer shroud 40 also has an axial dipole field, and the axial offset of three is identical.
It should be appreciated that in an illustrated embodiment, the second internal magnetic ring 18 has axially relative to the second outer magnetic ring 16
Skew, but it is only for preferred embodiment of the present utility model, in order to so that the second internal magnetic ring 18 and the second outer magnetic ring
The repulsive force on axial direction is preferably produced between 16, in other embodiments, according to the shape and construction of magnet ring, the second outer magnetic ring
16 and second internal magnetic ring 18 may be designed in no axial dipole field.
First outer shroud 22 and the first inner ring 28 are axial charging and magnetizing direction is identical, to cause the first outer shroud 22 to first
Inner ring 28 applies an axially and radially repulsive force.Second outer shroud 24 and the second inner ring 30 be radial magnetizing and magnetizing direction on the contrary,
To cause the second outer shroud 24 to apply a radial direction repulsive force to the second inner ring 30.3rd outer shroud 26 and the 3rd inner ring 32 are axial charging
And magnetizing direction is identical, to cause the 3rd outer shroud 26 to apply an axially and radially repulsive force to the 3rd inner ring 32.4th outer shroud 36
With the 4th inner ring 42 be axial charging and magnetizing direction it is identical, with cause the 4th outer shroud 36 to the 4th inner ring 42 apply one axially and
Radial direction repulsive force.5th outer shroud 38 and the 5th inner ring 44 are radial magnetizing and magnetizing direction on the contrary, to cause the 5th outer shroud 38 right
5th inner ring 44 applies a radial direction repulsive force.6th outer shroud 40 and the 6th inner ring 46 are axial charging and magnetizing direction is identical, with
So that the 6th outer shroud 40 applies an axially and radially repulsive force to the 6th inner ring 46.Active force between each magnet ring diametrically makes
Obtaining rotating shaft 10 can suspend.
In the present embodiment, the magnet ring for being installed on the first axial location is arranged to, 14 relative first outer magnetic ring of the first internal magnetic ring
12 offset towards close to the side of second axial location；Second internal magnetic ring, 18 relative second outer magnetic ring 16 is towards close to described
The side skew of first axial location.
The magnetizing direction of magnet ring can be that the magnetizing direction of the first outer shroud 22 and the first inner ring 28 is axially away from the second axle
To the direction of position, for the left in figure, or the first outer shroud 22 and the magnetizing direction of the first inner ring 28 are axially adjacent to second
The direction of axial location, for the right in figure；The magnetizing direction of second outer shroud 24 is the direction radially adjacent to rotating shaft 10, in figure
To be downward, the magnetizing direction of the second inner ring 30 is the direction radially away from rotating shaft 10, is upward in figure；Or second outer shroud 24
Magnetizing direction be direction radially away from rotating shaft 10, in figure be it is upward, the magnetizing direction of the second inner ring 30 be radially adjacent to
The direction of rotating shaft 10, it is downward in figure；3rd outer shroud 26 and the magnetizing direction of the 3rd inner ring 32 are axially adjacent to the second axial direction
The direction of position, for the right in figure, or the 3rd outer shroud 26 and the magnetizing direction of the 3rd inner ring 32 are axially away from the second axle
To the direction of position, for the left in figure；4th outer shroud 36 and the magnetizing direction of the 4th inner ring 42 are axially adjacent to the first axial direction
The direction of position, for the left in figure, or the 4th outer shroud 36 and the magnetizing direction of the 4th inner ring 42 are axially away from first axle
To the direction of position, for the right in figure；The magnetizing direction of 5th outer shroud 38 is the direction radially adjacent to rotating shaft 10, is in figure
Downwards, the magnetizing direction of the 5th inner ring 44 is the direction radially away from rotating shaft 10, is upward in figure；Or the 5th outer shroud 38
Magnetizing direction is the direction radially away from rotating shaft 10, is upward in figure, the magnetizing direction of the 5th inner ring 44 is radially adjacent to turning
The direction of axle 10, it is downward in figure；6th outer shroud 40 and the magnetizing direction of the 6th inner ring 46 are axially away from the first axial position
The direction put, for the right in figure, or the 6th outer shroud 40 and the magnetizing direction of the 6th inner ring 46 be axially adjacent to first axially
The direction of position, for the left in figure.
In an illustrated embodiment, the first outer shroud 22 and the magnetizing direction of the first inner ring 28 are axially away from the second axial position
The direction put, for the left in figure.The magnetizing direction of second outer shroud 24 be radially adjacent to rotating shaft 10 direction, in figure be to
Under, the magnetizing direction of the second inner ring 30 is the direction radially away from rotating shaft 10, is upward in figure.In 3rd outer shroud 26 and the 3rd
The magnetizing direction of ring 32 is the direction axially adjacent to the second axial location, for the right in figure.4th outer shroud 36 and the 4th inner ring
42 magnetizing direction is the direction axially adjacent to the first axial location, for the left in figure.The magnetizing direction of 5th outer shroud 38 is
It is downward in figure radially adjacent to the direction of rotating shaft 10, the magnetizing direction of the 5th inner ring 44 is the direction radially away from rotating shaft 10,
It is upward in figure.6th outer shroud 40 and the magnetizing direction of the 6th inner ring 46 are the direction axially away from the first axial location,
For to the right in figure.
It should be appreciated that the magnetizing direction in above-described embodiment is only exemplary, the utility model is not limited this,
In other embodiment, the magnetizing direction of each magnet ring can also be set according to actual design demand.
It should also be understood that in other embodiments, the magnet ring design side of the first axial location and the second axial location
Formula can also be implemented into, and the magnet ring for being installed on the first axial location is arranged to, the 14 relative court of first outer magnetic ring 12 of the first internal magnetic ring
Offset to the side away from second axial location；Second internal magnetic ring, 18 relative second outer magnetic ring 16 is directed away from described first
The side skew of axial location.
Substantially, in the above-described embodiments, the magnet ring arrangement and magnetizing direction positioned at the first axial location are with being located at second
A vertical line specular of the magnet ring arrangement and magnetizing direction of axial location on rotating shaft 10.First can be caused by so setting
Thrust on axial location and the second axial location on caused axial direction is relative or on the contrary, axle so as to mutual limit rotary shaft 10
To movement.But preferred embodiment of the present utility model is only for, in other embodiments, the first axial location and second is axially
The magnet ring structure arrangement and magnetizing direction of position can also be asymmetric, as long as enabling to the first axial location and the second axial position
Thrust on axial direction caused by putting is relative or on the contrary, so as to the axial movement of mutual limit rotary shaft 10, and meets to turn
The requirement that axle 10 suspends.
Axial force and radial load size needed for rotating shaft 10 are by the magnetic field size and internal magnetic ring of each magnet ring relative to outer magnetic ring
Axial offset determine.Therefore, permanent magnet (outer magnetic can be changed according to the axial force needed for rotating shaft 10 or radial load
Ring and internal magnetic ring) size and the axial offset size, so as to have the function that adjust magnetic field intensity, make rotating shaft 10 more steady
Fixed operation.
It should be noted that in the above-described embodiments, rotor is rotating shaft 10, but the utility model is not limited this.
In another embodiment shown in Fig. 2, rotor can also implement into axle sleeve 100 so that the first outer magnetic ring 112, the second outer magnetic ring
116 are fixedly connected with the inner surface of axle sleeve 100, and now, the first outer magnetic ring 112, the second outer magnetic ring 116 rotate together with rotor,
First internal magnetic ring 114 and the second internal magnetic ring 118 are fixed.Other are equal such as the arrangement mode of magnet ring and the magnetizing direction of magnet ring
Can be similar to the above embodiments, it will not be repeated here.
In summary, the utility model proposes a kind of permanent magnetism type magnetic suspension bearing.There is an axial dipole field using two
Outer magnetic ring and internal magnetic ring, wherein outer magnetic ring are sheathed on internal magnetic ring, outer magnetic ring and internal magnetic ring include respectively three it is radially corresponding and
The single polar body of the spacing compression of one, magnetizes to single polar body so that outer magnetic ring produces radially-inwardly and axle simultaneously to internal magnetic ring
To repulsive force.Two magnetic suspension bearings are symmetrical arranged at rotating shaft both ends, the outer magnetic ring at both ends acts power to internal magnetic ring respectively
So that internal magnetic ring reaches the effect axial limiting of countershaft progress simultaneously of suspension.The size of axial force and radial load needed for rotating shaft
Determined by the magnetic field size and outer magnetic ring of magnet ring and the axial offset of internal magnetic ring.Magnetic suspension bearing of the present utility model is by each
The magnet ring of different magnetizing directions is co-axially mounted and so that rotating shaft integrated suspension, without any contact, realizes lossless rotation.Tool
Have the advantage that：
1. due to there is no Mechanical Contact between rotor and stator, therefore in the absence of abrasion, it is not necessary to lubricate, run noise
It is small, it is allowed to rotor high speed, ultrahigh speed rotation；
2. magnetic suspension bearing only has very little resistance for rotor rotation, beneficial to energy-conservation；
3. need not power oil supply system, directly just run, it is convenient and swift；
4. suitable for clean exigent application scenario, so-called green operation is realized；
5. it can be used in rugged environment.
Concepts described herein may be embodied to other forms in the case of without departing from its spirit and characteristic.It is disclosed
Specific embodiment should be considered as exemplary rather than restricted.Therefore, the scope of the utility model is by appended right
It is required that rather than it is determined according to these descriptions before.It is any in the letter of claim and equivalency range
The scope of these claims should all be belonged to by changing.
Claims (10)
1. one of a kind of permanent magnetism type magnetic suspension bearing, including outer magnetic ring and internal magnetic ring, the outer magnetic ring and internal magnetic ring are fixed
It is attached on a rotor to be rotated with the rotor, the outer magnetic ring is sheathed on the radial outside of the internal magnetic ring, described
There is a gap between outer magnetic ring and the internal magnetic ring, it is characterised in that the outer magnetic ring include with respective magnetizing direction and
The first outer shroud, the second outer shroud and the 3rd outer shroud arranged successively vertically, the internal magnetic ring include with respective magnetizing direction and
The first inner ring, the second inner ring and the 3rd inner ring arranged successively vertically, the outer magnetic ring and internal magnetic ring are configured so that described
An axial thrust and a radial thrust are produced between outer magnetic ring and internal magnetic ring simultaneously.
2. permanent magnetism type magnetic suspension bearing as claimed in claim 1, it is characterised in that the outer magnetic ring is hollow cylindrical, institute
Stating the relatively described outer magnetic ring of internal magnetic ring has an axial dipole field.
3. permanent magnetism type magnetic suspension bearing as claimed in claim 2, it is characterised in that the width phase of the outer magnetic ring and internal magnetic ring
Together.
4. permanent magnetism type magnetic suspension bearing as claimed in claim 3, it is characterised in that first outer shroud and first inner ring
Width corresponding and vertically is identical, and second outer shroud is corresponding with second inner ring and width vertically is identical, described
3rd outer shroud is corresponding with the 3rd inner ring and width vertically is identical.
5. permanent magnetism type magnetic suspension bearing as claimed in claim 1, it is characterised in that the outer magnetic ring is the first outer magnetic ring, institute
It is the first internal magnetic ring to state internal magnetic ring, and the permanent magnetism type magnetic suspension bearing also includes the second outer magnetic ring and the second internal magnetic ring, described
One of two outer magnetic rings and the second internal magnetic ring are fixedly installed on the rotor to be rotated with the rotor, and described second
Outer magnetic ring is sheathed on the radial outside of second internal magnetic ring, has one between second outer magnetic ring and second internal magnetic ring
Gap, first outer magnetic ring and the first internal magnetic ring are arranged on the first axial location of the rotor, second outer magnetic ring
The second axial location of the rotor, first axial location and the second axial location interval are arranged on the second internal magnetic ring
One distance, second outer magnetic ring include the 4th outer shroud, the 5th outer shroud for having respective magnetizing direction and arranging successively vertically
With the 6th outer shroud, the internal magnetic ring includes the 4th inner ring, the 5th inner ring for having respective magnetizing direction and arranging successively vertically
With the 6th inner ring.
6. permanent magnetism type magnetic suspension bearing as claimed in claim 5, it is characterised in that first outer shroud and the first inner ring are axle
To magnetizing and magnetizing direction is identical, to cause first outer shroud to apply an axially and radially repulsive force to first inner ring；
Second outer shroud and the second inner ring are radial magnetizing and magnetizing direction on the contrary, to cause second outer shroud in described second
Ring applies a radial direction repulsive force；3rd outer shroud and the 3rd inner ring are axial charging and magnetizing direction is identical, described to cause
3rd outer shroud applies an axially and radially repulsive force to the 3rd inner ring；4th outer shroud and the 4th inner ring are axial charging
And magnetizing direction is identical, to cause the 4th outer shroud to apply an axially and radially repulsive force to the 4th inner ring；Described
Five outer shrouds and the 5th inner ring are radial magnetizing and magnetizing direction on the contrary, to cause the 5th outer shroud to apply the 5th inner ring
One radial direction repulsive force；6th outer shroud and the 6th inner ring are axial charging and magnetizing direction is identical, to cause outside the described 6th
Ring applies an axially and radially repulsive force to the 6th inner ring.
7. permanent magnetism type magnetic suspension bearing as claimed in claim 6, it is characterised in that first internal magnetic ring relatively described first
Outer magnetic ring is offset towards close to the side of second axial location；The relatively described second outer magnetic ring direction of second internal magnetic ring
Offset close to the side of first axial location.
8. permanent magnetism type magnetic suspension bearing as claimed in claim 7, it is characterised in that first outer shroud and the first inner ring are filled
Magnetic direction is the direction axially away from second axial location, or first outer shroud and the magnetizing direction of the first inner ring be
Axially adjacent to the direction of second axial location；The magnetizing direction of second outer shroud is the side radially adjacent to the rotor
To the magnetizing direction of second inner ring is the direction radially away from the rotor；Or the side of magnetizing of second outer shroud
It is the side radially adjacent to the rotor to the magnetizing direction for the direction radially away from the rotor, second inner ring
To；3rd outer shroud and the magnetizing direction of the 3rd inner ring are the direction axially adjacent to second axial location, or described
3rd outer shroud and the magnetizing direction of the 3rd inner ring are the direction axially away from second axial location；4th outer shroud and
The magnetizing direction of four inner ring is the direction axially adjacent to first axial location, or the 4th outer shroud and the 4th inner ring
Magnetizing direction is the direction axially away from first axial location；The magnetizing direction of 5th outer shroud is radially adjacent to described
The direction of rotor, the magnetizing direction of the 5th inner ring are the direction radially away from the rotor；Or outside the described 5th
The magnetizing direction of ring is the direction radially away from the rotor, and the magnetizing direction of the 5th inner ring is radially adjacent to described turn
The direction of kinetoplast；6th outer shroud and the magnetizing direction of the 6th inner ring are the direction axially away from first axial location,
Or the 6th outer shroud and the magnetizing direction of the 6th inner ring are the direction axially adjacent to first axial location.
9. permanent magnetism type magnetic suspension bearing as claimed in claim 6, it is characterised in that first internal magnetic ring relatively described first
Outer magnetic ring is directed away from the side skew of second axial location；The relatively described second outer magnetic ring direction of second internal magnetic ring
Side away from first axial location is offset.
10. permanent magnetism type magnetic suspension bearing as claimed in claim 9, it is characterised in that first outer shroud and the first inner ring
Magnetizing direction is the direction axially away from second axial location, or first outer shroud and the magnetizing direction of the first inner ring
For the direction axially adjacent to second axial location；The magnetizing direction of second outer shroud is radially adjacent to the rotor
Direction, the magnetizing direction of second inner ring are the direction radially away from the rotor；Or second outer shroud magnetizes
Direction is the direction radially away from the rotor, and the magnetizing direction of second inner ring is the side radially adjacent to the rotor
To；3rd outer shroud and the magnetizing direction of the 3rd inner ring are the direction axially adjacent to second axial location, or described
3rd outer shroud and the magnetizing direction of the 3rd inner ring are the direction axially away from second axial location；4th outer shroud and
The magnetizing direction of four inner ring is the direction axially adjacent to first axial location, or the 4th outer shroud and the 4th inner ring
Magnetizing direction is the direction axially away from first axial location；The magnetizing direction of 5th outer shroud is radially adjacent to described
The direction of rotor, the magnetizing direction of the 5th inner ring are the direction radially away from the rotor；Or outside the described 5th
The magnetizing direction of ring is the direction radially away from the rotor, and the magnetizing direction of the 5th inner ring is radially adjacent to described turn
The direction of kinetoplast；6th outer shroud and the magnetizing direction of the 6th inner ring are the direction axially away from first axial location,
Or the 6th outer shroud and the magnetizing direction of the 6th inner ring are the direction axially adjacent to first axial location.
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| CN201720610266.7U CN207212943U (en) | 2017-05-27 | 2017-05-27 | Permanent magnetism type magnetic suspension bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420424A (en) * | 2017-05-27 | 2017-12-01 | 深圳智慧能源技术有限公司 | Permanent magnetism type magnetic suspension bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420424A (en) * | 2017-05-27 | 2017-12-01 | 深圳智慧能源技术有限公司 | Permanent magnetism type magnetic suspension bearing |
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