CN202001498U - Permanent magnetic suspension bearing and mounting structure thereof - Google Patents
Permanent magnetic suspension bearing and mounting structure thereof Download PDFInfo
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- CN202001498U CN202001498U CN2011200075245U CN201120007524U CN202001498U CN 202001498 U CN202001498 U CN 202001498U CN 2011200075245 U CN2011200075245 U CN 2011200075245U CN 201120007524 U CN201120007524 U CN 201120007524U CN 202001498 U CN202001498 U CN 202001498U
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- 239000000725 suspension Substances 0.000 title claims abstract description 117
- 230000005389 magnetism Effects 0.000 claims description 122
- 230000002093 peripheral effect Effects 0.000 claims description 51
- 230000009183 running Effects 0.000 claims description 31
- 238000009434 installation Methods 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 230000002153 concerted effect Effects 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 238000006891 umpolung reaction Methods 0.000 description 1
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/041—Passive magnetic bearings with permanent magnets on one part attracting the other part
- F16C32/0421—Passive magnetic bearings with permanent magnets on one part attracting the other part for both radial and axial load
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/041—Passive magnetic bearings with permanent magnets on one part attracting the other part
- F16C32/0412—Passive magnetic bearings with permanent magnets on one part attracting the other part for radial load mainly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model discloses a permanent magnetic suspension bearing, comprising an inner ring (1), an outer ring (2), a plurality of first radial permanent magnets (3) and at least one axial permanent magnet (4), wherein the inner circumferential surface of the outer ring (2) is fixedly provided with a plurality of permanent magnetic ring bodies (21), the inner ring is sleeved in the outer ring, the inner diameter of each permanent magnetic ring body is larger than the outer diameter of the inner ring, and the adjacent permanent magnetic ring bodies are mutually spaced along the axial direction; the first radial permanent magnets are fixed on the inner ring, respectively correspond to the permanent magnetic ring bodies, and are subjected to opposite magnetic attraction with the permanent magnets along the radial direction; and the at least one axial permanent magnet is fixed on the inner ring and is located among the permanent magnetic ring bodies so as to ensure that the outer ring is in a force balance state along the axial direction. The utility model further provides a mounting structure of the permanent magnetic suspension bearing. The permanent magnetic suspension bearing provided by the utility model is more suitable for working occasions with a rotor as the outer ring and a stator as the inner ring, and can bear larger load.
Description
Technical field
The utility model relates to a kind of permanent-magnet suspension bearing and mounting structure thereof.
Background technique
Magnetic suspension bearing is to utilize magnetic force that rotor is suspended in the air, make between rotor and the stator and do not have Mechanical Contact, rotor can run to very high rotating speed, have that mechanical wear is little, energy consumption is low, noise is little, the life-span is long, need not to lubricate, advantage such as no oil pollution, be specially adapted in the particular surroundingss such as high speed, vacuum, ultra-clean.
The present inventor discloses a kind of permanent-magnet suspension bearing in Chinese patent CN 201531526U, this permanent-magnet suspension bearing mainly comprises inner ring and outer ring, and wherein inner ring is a permanent magnet, and the outer ring is made by permeability magnetic material or non-magnet material.Two ends at this permanent magnetic suspending shaft bearing outer-ring are fixed with the axial permanent magnetic body respectively, and are set with the radial permanent magnet body on the outer ring, and this radial permanent magnet body is inhaled mutually with inner ring.Inner ring is sleeved on inside, outer ring, and under the non-bearing state, inner ring and outer ring are in fit-state.During work, axle journal is installed in the inner ring, axle can overcome the suction of radial permanent magnet body to inner ring to the pressure of inner ring, thereby makes inner ring be in state of suspension.This permanent-magnet suspension bearing is simple in structure, and is practical, and above-mentioned permanent-magnet suspension bearing is applicable to that inner ring is that rotor, outer ring are the workplace of stator.It is that rotor, inner ring are the workplace of stator that this bearing is not suitable for various outer rings, as is used for the follower of various vehicles.
Therefore need provide a kind of outer ring that is applicable to is that rotor, inner ring are the permanent-magnet suspension bearing of the workplace of stator.
The model utility content
The purpose of this utility model is to provide a kind of permanent-magnet suspension bearing simple in structure and mounting structure thereof, and this permanent-magnet suspension bearing and mounting structure thereof are applicable to that more inner ring is that stator, outer ring are the workplace of rotor.
In order to achieve the above object, as an aspect of the present utility model, provide a kind of permanent-magnet suspension bearing, this permanent-magnet suspension bearing comprises: inner ring; The outer ring is fixed with a plurality of permanent magnetism ring bodies on the inner peripheral surface of described outer ring, described inner ring is enclosed within the described outer ring, and the internal diameter of each described permanent magnetism ring body is all greater than described inner ring external diameter, and adjacent permanent magnetism ring body in axial direction is spaced apart from each other; A plurality of first radial permanent magnet bodies, these a plurality of first radial permanent magnet bodies be fixed on the described inner ring and respectively be fixed on described outer ring on a plurality of permanent magnetism ring bodies corresponding, and described each first radial permanent magnet body is radially gone up magnetic force with the pairing described permanent magnetism ring body of this first radial permanent magnet body respectively and is inhaled mutually; At least one axial permanent magnetic body, this at least one axial permanent magnetic body is fixed on the described inner ring and protrudes in the outer peripheral surface of described inner ring, and described at least one axial permanent magnetic body is positioned between the described permanent magnetism ring body, thereby makes described outer ring be in the equilibrium of forces state in axial direction.
Preferably, be under the non-bearing state in described outer ring, radially magnetic attracting force can make described permanent magnetism ring body contact with described inner ring or the described first radial permanent magnet body between the described first radial permanent magnet body and the described permanent magnetism ring body; Be under the loaded state in described outer ring, described outer ring can suspend outside described inner ring, freely rotates carrying out.
Preferably, described axial permanent magnetic body is a plurality of, is provided with a described axial permanent magnetic body between per two adjacent described permanent magnetism ring bodies.
Preferably, each described axial permanent magnetic body all is positioned at the neutral position of two the described permanent magnetism ring bodies adjacent with this axial permanent magnetic body at axial direction.
Preferably, each described permanent magnetism ring body thickness in axial direction all is not more than the thickness of the described first radial permanent magnet body corresponding with this permanent magnetism ring body along described inner ring axial direction.
Preferably, have groove on the described inner ring, the described first radial permanent magnet body is installed in the described groove.
Preferably, the described first radial permanent magnet body is the fan ring body coaxial with described inner ring, and the central axis of this fan ring body is identical with the central axis of described inner ring, and the outer peripheral surface of the described first radial permanent magnet body aligns with the outer peripheral surface of described inner ring.
Preferably, described axial permanent magnetic body is the fan ring body coaxial with described inner ring.
Preferably, described axial permanent magnetic body and the described first radial permanent magnet body are the fan ring body coaxial with described inner ring; Along in the sectional drawing of the radial direction of this permanent-magnet suspension bearing of a described permanent magnetism ring body, the inner peripheral surface of the described first radial permanent magnet body of inhaling mutually with this permanent magnetism ring body be projected as first arc, the inner peripheral surface of the described axial permanent magnetic body adjacent with this permanent magnetism ring body be projected as second arc, this first arc and second arc are all with respect to the line symmetry between the mid point of the mid point of described first arc and second arc, and the opening of described first arc and second arc toward each other.
Preferably, the central angle alpha of described first arc be 60 the degree to 100 the degree, the central angle β of described second arc be 120 the degree to 200 the degree.
Preferably, this permanent-magnet suspension bearing also comprises a plurality of second radial permanent magnet bodies, these a plurality of second radial permanent magnet bodies and described a plurality of first radial permanent magnet body are symmetrical arranged with respect to the central axis of described inner ring, and described each second radial permanent magnet body is opposite with this symmetrically arranged first radial permanent magnet body pole orientation of second radial permanent magnet body institute.
Preferably, the pole orientation of described a plurality of permanent magnetism ring body, described a plurality of first radial permanent magnet bodies and described at least one axial permanent magnetic body is in axial direction.
As another one of the present utility model aspect, a kind of mounting structure of permanent-magnet suspension bearing is provided, this mounting structure comprises: permanent-magnet suspension bearing, this permanent-magnet suspension bearing are permanent-magnet suspension bearing described in the utility model; Auxiliary bearing, the inner ring of this auxiliary bearing and described permanent-magnet suspension bearing is coaxial; Stationary axle, the described inner ring of described permanent-magnet suspension bearing and the inner ring of described auxiliary bearing are fixedly mounted on the outer peripheral surface of described stationary axle; With the running shaft of hollow, the described outer ring of described permanent-magnet suspension bearing and the outer ring of described auxiliary bearing are fixedly mounted on the inner peripheral surface of this running shaft.
Preferably, after the installation, the magnetic attracting force between the described first radial permanent magnet body of described permanent-magnet suspension bearing and the described permanent magnetism ring body of described permanent-magnet suspension bearing is opposite with the loading direction that acts on the described running shaft.
According to permanent-magnet suspension bearing provided by the utility model, utilization is provided with the outer ring of permanent magnetism ring body and the magnetic force of axial permanent magnetic body and radial permanent magnet body, realization is applicable to more that to the axial position control and the radial position control of outer ring the outer ring is that rotor, inner ring are the working environment of stator.
Description of drawings
Fig. 1 is the axial, cross-sectional view according to the permanent-magnet suspension bearing of a kind of mode of execution of the utility model, shows the distribution of each magnetic pole in a kind of mode of execution of permanent magnetic suspending shaft bearing assembly;
Fig. 2 is the axial, cross-sectional view of the inner ring of permanent-magnet suspension bearing shown in Fig. 1;
Fig. 3 is the first radial permanent magnet body stereogram among Fig. 1;
Fig. 4 is the plan view of the first radial permanent magnet body among Fig. 3;
Fig. 5 is the A-A sectional view of permanent-magnet suspension bearing among Fig. 1; With
Fig. 6 is a kind of mode of execution of the mounting structure of permanent-magnet suspension bearing described in the utility model.
Reference character
1 inner ring, 2 outer rings
3 first radial permanent magnet bodies, 4 axial permanent magnetic bodies
8 auxiliary bearings, 11 first arcs
12 second arcs, 13 grooves
14 stationary axle, 15 running shafts
Two end faces of 21 permanent magnetism ring bodies, 9,10 first radial permanent magnet bodies
Embodiment
Below with reference to accompanying drawing embodiment of the present utility model is described in detail.
As shown in Figure 1, the utility model provides a kind of permanent-magnet suspension bearing, and this permanent-magnet suspension bearing comprises:
A plurality of first radial permanent magnet bodies 3, these a plurality of first radial permanent magnet bodies 3 be fixed on the described inner ring 1 and respectively be fixed on described outer ring 2 on described a plurality of permanent magnetism ring bodies 21 corresponding, and described each first radial permanent magnet body 3 is radially gone up magnetic force with corresponding described permanent magnetism ring body 21 respectively and is inhaled mutually;
At least one axial permanent magnetic body 4, this at least one axial permanent magnetic body 4 is fixed on the described inner ring 1 and protrudes in the outer peripheral surface of this inner ring 1, and described at least one axial permanent magnetic body 4 is between described permanent magnetism ring body 21, thereby makes described outer ring 2 be in the equilibrium of forces state in axial direction.
When above-mentioned permanent-magnet suspension bearing was worked, for example outer ring 2 was installed in the wheel hub, and the axle that does not rotate is installed in the inside of inner ring 1, and the part of wheel hub outside rotates with described outer ring 2, and promptly outer ring 2 is a rotor.Installation being set being described in detail hereinafter about permanent-magnet suspension bearing.
The first radial permanent magnet body 3 can be fixedly installed on the inner ring 1 in several ways, for example can be in inner ring 1 machining jagged, and the first radial permanent magnet body 3 embedded in these breach, utilize tackiness agent or filler that the first radial permanent magnet body 3 is fixedly secured then.Certainly, the first radial permanent magnet body 3 is not limited to above-mentioned this mounting type, and under the situation that inner ring 1 is made for magnetic conductive material, the first radial permanent magnet body 3 also can be fixedly installed on the outer peripheral surface of inner ring 1.Therefore, the first radial permanent magnet body 3 can be selected according to concrete application with the fixed installation mode of inner ring 1, and this will describe hereinafter in more detail.
Owing to do not have the mode of fixedlying connected between inner ring 1 and the outer ring 2, when permanent-magnet suspension bearing is in load condition, permanent magnetism ring body 21 suspends in inner ring 1 outside together with outer ring 2, in axial direction move easily outer ring 2, at least one axial permanent magnetic body 4 of fixed installation can make permanent magnetism ring body 21 be in the equilibrium of forces state in axial direction on the part in the middle of the outer peripheral surface of inner ring 1 is positioned at permanent magnetism ring body 21, guarantees that permanent magnetism ring body 21 stops in place together with outer ring 2 and can prevent described outer ring 2 play in axial direction.
Axial permanent magnetic body 4 can be fixed on the suitable position on the inner ring 1 in several ways.For example, axial permanent magnetic body 4 can be fixed on the outer peripheral surface of inner ring 1.In addition, axial permanent magnetic body 4 can also embed in the inner ring 1, similar with the first radial permanent magnet body 3, installation for the ease of described permanent-magnet suspension bearing, outer surface height after axial permanent magnetic body 4 is fixed on the inner ring 1 should be lower than the inner peripheral surface of permanent magnetism ring body 21, like this, permanent magnetism ring body 21 is fixed on one by one on the inner peripheral surface of outer ring 2 after, with pack into the inside of described outer ring 2 of the inner ring 1 that is fixed with at least one axial permanent magnetic body 4.
Preferably, under axial permanent magnetic body 4 was a plurality of situation, a plurality of axial permanent magnetic body 4 shapes that are fixed on the inner ring 1 were identical, can better keep outer ring 2 equilibrium of forces state in the axial direction like this.
Below the principle of above-mentioned permanent-magnet suspension bearing is described in more detail.
In the axial direction, the magnetive attraction of 4 pairs of permanent magnetism ring bodies 21 of axial permanent magnetic body can be repulsion or gravitation, but in the preferred case, the magnetive attraction of 4 pairs of permanent magnetism ring bodies 21 of axial permanent magnetic body is a repulsion, thereby can guarantee to have suitable distance between 21 maintenances of permanent magnetism ring body and the axial permanent magnetic body 4.Because in the axial direction, permanent magnetism ring body 21 is in state of equilibrium, in case therefore permanent magnetism ring body 21 deflection inner rings 1 a certain end, the 4 pairs of repulsion near the permanent magnetism ring body 21 of this axial permanent magnetic body 4 of axial permanent magnetic body that are arranged between adjacent two permanent magnetism ring bodies 21 increase, and the repulsion away from the permanent magnetism ring body 21 of this axial permanent magnetic body 4 is reduced, return to state of equilibrium again thereby promote permanent magnetism ring body 21 in the axial direction.
Preferably, attraction force between the first radial permanent magnet body 3 and the permanent magnetism ring body 21 should be enough big, be under the non-bearing state in outer ring 2, radially magnetic attracting force can make permanent magnetism ring body 21 contact with the inner ring 1 or the first radial permanent magnet body 3 between the first radial permanent magnet body 3 and the permanent magnetism ring body 21, as Fig. 1 and shown in Figure 5; And be under the loaded state in outer ring 2, permanent magnetism ring body 21 can be implemented in stress balance in the radial direction under the acting in conjunction of the first radial permanent magnet body 3 and load, and can outside described inner ring 1, suspend, further drive outer ring 2 and outside inner ring 1, suspend and freely rotate carrying out.
Thereby, under loaded state, utilize the technical solution of the utility model can realize the state of suspension of outer ring, can under load condition, do the rotation that does not almost have friction by the outer ring.
A plurality of permanent magnetism ring bodies 21 are installed in the outer ring 2, and simultaneously inner ring 1 is provided with respectively a plurality of first radial permanent magnet bodies 3 corresponding with permanent magnetism ring body 21, thereby permanent magnetism ring body 21 is produced the magnetic attracting force of radial direction.In addition, utilize the axial permanent magnetic body 4 between two adjacent permanent magnetism ring bodies 21 to realize the equilibrium of forces state of outer ring 2 at axial direction.
In permanent-magnet suspension bearing shown in Figure 1, owing to can form the relatively long extended length of axial direction, therefore, this kind permanent-magnet suspension bearing has relatively large bearing capacity.And, also have stability relatively preferably in the axial direction.Though only represented two permanent magnetism ring bodies 21, two the first radial permanent magnet bodies 3 and axial permanent magnetic bodies 4 in Fig. 1, the utility model is not limited to this, can also be provided with more a plurality of.
Preferably, be under the non-bearing state in outer ring 2, radially magnetic attracting force can make permanent magnetism ring body 21 contact with the inner ring 1 or the first radial permanent magnet body 3 between a plurality of first radial permanent magnet bodies 3 and a plurality of permanent magnetism ring bodies 21; Be under the loaded state in outer ring 2, permanent magnetism ring body 21 can suspend outside inner ring 1, freely rotates carrying out.
In above-mentioned permanent magnetic suspending shaft bearing structure, can use Bond that permanent magnetism ring body 21 is bonded and fixed on the inner peripheral surface of outer ring 2.
When axial permanent magnetic body 4 was one, this axial permanent magnetic body 4 was arranged between the adjacent a pair of permanent magnetism ring body 21.At this moment, the quantity of permanent magnetism ring body 21 is preferably two.
When axial permanent magnetic body 4 when being a plurality of, preferably, can between per two adjacent permanent magnetism ring bodies 21, an axial permanent magnetic body 4 be set.Help the stressed state of equilibrium that is in that keeps permanent magnetism ring body 21 and outer ring 2 in axial direction to go up.
The mounting point of axial permanent magnetic body 4 on inner ring 1 gets final product axial stabilization being played in outer ring 2, do not have specific (special) requirements.Preferably, axial permanent magnetic body 4 is positioned at the neutral position of two the permanent magnetism ring bodies 21 adjacent with this axial permanent magnetic body 4.
Preferably, each permanent magnetism ring body 21 thickness in axial direction all is not more than the thickness of the first radial permanent magnet body 3 corresponding with this permanent magnetism ring body 21 along inner ring 1 axial direction.Further preferably, permanent magnetism ring body 21 thickness in axial direction equals the thickness of the first radial permanent magnet body 3 along inner ring 1 axial direction.By the first radial permanent magnet body 3 is equated with permanent magnetism ring body 21 thickness in axial direction along the thickness of inner ring 1 axial direction, can make permanent magnetism ring body 21 obtain stable magnetic attracting force, thereby help guaranteeing that outer ring 2 is in steady state in radial direction and/or axial direction.
Usually, for the first radial permanent magnet body 3 is installed, can set in advance jagged in inner ring 1 or groove 13, as shown in Figure 2, these groove 13 internal fixation of in assembly process the first radial permanent magnet body 3 being packed into then get final product.
The shape of above-mentioned each first radial permanent magnet body 3 and each axial permanent magnetic body 4 also has no special requirements, realizing the positioning control of outer ring 2 is got final product by magnetic action power.For example, above-mentioned magnet can be cuboid shape, bar shaped, annular etc.
For the ease of the installation of the described first radial permanent magnet body 3, preferably, the first radial permanent magnet body 3 is the fan ring body, on the axial direction of inner ring 1, the first radial permanent magnet body 3 of fan ring body is thickness d 3 in axial direction, radially has width w3, as shown in Figure 3 and Figure 4.Preferably, central axis of this fan ring body is identical with the central axis of inner ring 1, and it is comparatively even that permanent magnetism ring body 21 is subjected to the magnetic attraction distribution of the first radial permanent magnet body 3 like this.
Preferably, the outer peripheral surface of the first radial permanent magnet body 3 aligns with the outer peripheral surface of inner ring 1; Further preferably, the outer peripheral surface of the first radial permanent magnet body 3 also aligns with the outer peripheral surface of inner ring 1.In this structure, under the non-bearing state, permanent magnetism ring body 21 can be drawn onto on the outer peripheral surface of the first radial permanent magnet body 3, as Fig. 1 and shown in Figure 5.This structure can make permanent magnetism ring body 21 obtain stable magnetic attracting force, thereby helps guaranteeing that outer ring 2 is in steady state in radial direction and/or axial direction.
The first radial permanent magnet body 3 of fan ring body is packed in the inner ring 1, adopt two kinds of mode of structure usually.
The fan ring body of first kind of mode as shown in Fig. 3 and Fig. 4, wherein, two end faces 9,10 of the first radial permanent magnet body 3 of this fan ring body (these two end faces are also parallel to each other) parallel with the central axis of inner ring 1.In this structure, the pairing central angle of circular arc of the circumferencial direction of the inner peripheral surface of fan ring body is different with the pairing central angle of the circular arc of the circumferencial direction of outer peripheral surface.
Another kind of mode as shown in Figure 5, the central axis of inner ring 1 is positioned at the plane at two end face 9,10 places of the first radial permanent magnet body 3 of fanning ring body, that is to say that the central axis of inner ring 1 is two end faces 9 of the first radial permanent magnet body 3 and the intersection on plane, 10 place.In this structure, the pairing central angle of circular arc of the circumferencial direction of the inner peripheral surface of the fan ring body of the first radial permanent magnet body 3 is identical with the pairing central angle of the circular arc of the circumferencial direction of outer peripheral surface.
In order to make 3 pairs of permanent magnetism ring bodies of the first radial permanent magnet body 21 produce suitable enough magnetic attracting forces, preferably, the circular arc of the circumferencial direction of the inner peripheral surface of the fan ring body of the described first radial permanent magnet body 3 (arc AB as shown in Figure 4) pairing central angle (central angle alpha as shown in Figure 5) is that 60 degree are to 100 degree.
Further preferably, the pairing central angle of circular arc of the circumferencial direction of the inner peripheral surface of the fan ring body of the first radial permanent magnet body 3 is 90 degree.
More than the setting and the effect thereof of the first radial permanent magnet body 3 of permanent-magnet suspension bearing of the present utility model described in detail.Below axial permanent magnetic body 4 is described in detail.
The magnetic force of two permanent magnetism ring bodies 21 that 4 pairs of axial permanent magnetic bodies and this axial permanent magnetic body 4 are adjacent is repulsion (or gravitation), this repulsion (or gravitation) component (if any) equal and opposite in direction, direction in the axial direction is opposite, thereby to make a concerted effort in the axial direction be zero, thereby can guarantee in the axial direction stable of permanent magnetism ring body 21.The geometrical shape of axial permanent magnetic body 4 does not have specific (special) requirements, as long as can realize axially stablizing permanent magnetism ring body 21.
Preferably, axial permanent magnetic body 4 is the fan ring body, and the central axis of this fan ring body (promptly being somebody's turn to do the central axis of the cylndrical surface at the interior or outer peripheral surface place of fanning ring body) is identical with the central axis of inner ring 1.Thereby the inner peripheral surface and the outer peripheral surface of the inner peripheral surface of axial permanent magnetic body 4, outer peripheral surface and inner ring 1 have common central axis, thereby make the setting of permanent magnetism ring body 21 and outer ring 2 can not have influence on being connected of outer ring 2 and load and rotatablely move.Here, the fan ring body structurc of the fan ring body of axial permanent magnetic body 4 and the above-mentioned first radial permanent magnet body 3 is similar, thereby no longer describes in detail.
Preferably, as shown in Figure 5, the axial permanent magnetic body 4 and the first radial permanent magnet body 3 are the fan ring body coaxial with inner ring 1.Axial permanent magnetic body 4 in the position and the relativeness of the first radial permanent magnet body 3 in the position on the inner ring 1 of inner ring 1 is: along in the sectional drawing of the radial direction of this permanent-magnet suspension bearing of a permanent magnetism ring body 21, the inner peripheral surface of the first radial permanent magnet body of inhaling mutually with this permanent magnetism ring body 21 3 be projected as first arc 11, the inner peripheral surface of the axial permanent magnetic body 4 adjacent with this permanent magnetism ring body 21 be projected as second arc 12, this first arc 11 and second arc 12 are with respect to the line bilateral symmetry in Fig. 5 between the mid point of the mid point of described first arc 11 and second arc 12, and the opening of described first arc 11 and second arc 12 toward each other.
Preferably, the central angle alpha of first arc 11 be 60 the degree to 100 the degree, further preferably, be 90 the degree.According to this structure, the direction of the magnetic attraction of 3 pairs of permanent magnetism ring bodies 21 of the first radial permanent magnet body is mainly along vectorial OC direction (downward in Fig. 5), and the repulsion of 4 pairs of permanent magnetism ring bodies 21 of axial permanent magnetic body in the axial direction can be zero with joint efforts, the repulsion of 4 pairs of permanent magnetism ring bodies 21 of axial permanent magnetic body will be mainly along vectorial DC direction in making a concerted effort in the radial direction.That is to say, the repulsion of 4 pairs of permanent magnetism ring bodies 21 of axial permanent magnetic body that is positioned at 2 axial direction both sides, outer ring is identical in the direction of the magnetic attraction of in the radial direction 3 pairs of permanent magnetism ring bodies 21 of the direction of making a concerted effort and the first radial permanent magnet body, thereby in the effect of playing the auxiliary first radial permanent magnet body 3 in the radial direction.
Because permanent magnetism ring body 21 is fixed on the inner peripheral surface of outer ring 2, therefore, can regard permanent magnetism ring body 21 and outer ring 2 as an integral body.The magnetive attraction of the first radial permanent magnet body 3 and 4 pairs of permanent magnetism ring bodies 21 of axial permanent magnetic body can be regarded as simultaneously also on outer ring 2.
In this case, if bear load on the outer ring 2, the repulsion that this load can be utilized 4 pairs of permanent magnetism ring bodies 21 of axial permanent magnetic body in the radial direction make a concerted effort and the magnetic attraction of 3 pairs of permanent magnetism ring bodies 21 of the first radial permanent magnet body together supports, can also overcome simultaneously outer ring 2 self gravitations and permanent magnetism ring body 21 self gravitations and, thereby the permanent-magnet suspension bearing that the utility model is provided can be applicable in the operating conditions of loaded state.
Preferably, the central angle of second arc 12 (the central angle β shown in Fig. 5) is that 120 degree are to 200 degree.Further preferably, the central angle of second arc 12 be 160 the degree to 180 the degree, thereby can make outer ring 2 obtain more stable state of equilibrium in the axial direction.
In order further to improve the bearing capacity of permanent-magnet suspension bearing of the present utility model, preferably, described permanent-magnet suspension bearing also comprises a plurality of second radial permanent magnet body (not shown)s, these a plurality of second radial permanent magnet bodies are fixedly mounted on the described inner ring 1 (in inner ring 1 as described in embedding), and these a plurality of second radial permanent magnet bodies and a plurality of first radial permanent magnet body 3 are symmetrical arranged with respect to the central axis of inner ring 1, and described a plurality of second radial permanent magnet body is opposite with a plurality of first radial permanent magnet body, 3 pole orientation.
Because a plurality of second radial permanent magnet bodies and a plurality of first radial permanent magnet body 3 are with respect to the central axis symmetry of inner ring 1, and these a plurality of second radial permanent magnet bodies are opposite with a plurality of first radial permanent magnet body, 3 pole orientation, therefore these a plurality of second radial permanent magnet bodies and a plurality of permanent magnetism ring body 21 magnetic force repel each other, thereby, described a plurality of second radial permanent magnet body is identical to the resultant direction of the magnetic attraction of a plurality of permanent magnetism ring bodies 21 with a plurality of first radial permanent magnet bodies to the resultant direction of the magnetic repulsion force of a plurality of permanent magnetism ring bodies 21, thereby can allow the bigger load of outer ring 2 carryings of a plurality of permanent magnetism ring bodies 21 outsides.
Preferably, inner ring 1 can be made by magnetic conductive material.The inner ring 1 that utilizes this magnetic conductive material to make can make the magnetic action power between outer ring 2 and radial permanent magnet body 3 and the axial permanent magnetic body 4 bigger, thereby makes outer ring 2 more firm in the axial direction, can carry bigger load in the radial direction.
As mentioned above, magnetic is inhaled mutually between the first radial permanent magnet body 3 and the permanent magnetism ring body 21, permanent magnetism ring body 21 is repel each other (or inhaling mutually) with axial permanent magnetic body 4, and to realize the state of suspension of outer ring 2 under loaded state, this can realize by being provided with of magnetic pole of each magnet.
Preferably, the pole orientation of a plurality of permanent magnetism ring bodies 21, a plurality of first radial permanent magnet bodies 3 and at least one axial permanent magnetic body 4 is all in axial direction arranged.
Specifically, be that example is described with the orientation among Fig. 1.In the axial direction, the left end of permanent magnetism ring body 21 is the N utmost point, and right-hand member is the S utmost point; The left end of the first radial permanent magnet body 3 is the S utmost point, and right-hand member is the N utmost point; Axial permanent magnetic body 4 left ends between two permanent magnetism ring bodies 21 are the S utmost point, and right-hand member is the N utmost point.Certainly, also be fully feasible with each magnets N utmost point and S umpolung among Fig. 1 (the N utmost point that is about among Fig. 1 is made as the S utmost point, and the S utmost point among Fig. 1 is made as the N utmost point).
Because the pole orientation of described each magnet is in axial direction, therefore, can make things convenient for the setting of each magnet on the one hand, on the other hand, what is more important is set in axial direction by the pole orientation that makes each magnetic pole, can make corresponding different magnets (magnet that attracts each other as magnetic) form closed field circuit, thereby the phenomenon of demagnetizing can not occur, can make magnetic field state keep stable more muchly.
At different applications, can select to produce permanent magnet, first (the second) the radial permanent magnet body and the axial permanent magnetic body of different magnetic intensities.
In addition, for traditional permanent-magnet suspension bearing, in the permanent-magnet suspension bearing provided by the utility model, axial permanent magnetic body 4 is fixed together with inner ring 1 (as by adhesives together), the first radial permanent magnet body 3 is fixed together with inner ring 1, and permanent magnetism ring body 21 is fixed together with outer ring 2.Therefore, permanent-magnet suspension bearing of the present utility model is an integrated form, and structure is very compact, and assembly process is also comparatively easy.
The mounting structure of permanent-magnet suspension bearing described in the utility model can comprise the running shaft and the permanent-magnet suspension bearing described in the utility model of stationary axle, hollow.
At inner ring is that described stationary axle maintains static in the workplace of rotor for the stator outer ring, and the running shaft of described hollow is around the central axis rotation of stationary axle.For example, described stationary axle is that the running shaft of frame, described hollow is a wheel hub.The inner ring 1 of permanent-magnet suspension bearing is fixedly mounted on the outer peripheral surface of described stationary axle.The outer ring 2 of permanent-magnet suspension bearing is fixedly mounted on the inner peripheral surface of running shaft of described hollow, drives outer ring 2 during the rotation of the running shaft of hollow and together rotates.
Because outer ring 2 suspends outside inner ring 1, thus friction do not had between outer ring 2 and the inner ring 1, thus can not reduce the rotating speed of the running shaft of hollow, improve the working efficiency of the running shaft of hollow.
As on the other hand of the present utility model, a kind of preferred mounting structure of permanent-magnet suspension bearing is provided, as shown in Figure 6, this mounting structure comprises: permanent-magnet suspension bearing, this permanent-magnet suspension bearing are above-mentioned permanent-magnet suspension bearing provided by the utility model; Auxiliary bearing 8, this auxiliary bearing 8 is coaxial with the inner ring 1 of permanent-magnet suspension bearing; Stationary axle 14, the inner ring 1 of permanent-magnet suspension bearing and the inner ring of auxiliary bearing 8 are fixedly mounted on the outer peripheral surface of stationary axle 14; With the running shaft 15 of hollow, the outer ring 2 of permanent-magnet suspension bearing and the outer ring of auxiliary bearing 8 are fixedly mounted on the inner peripheral surface of this running shaft 15.
Because when work, permanent magnetic suspending shaft bearing outer-ring 2 suspends outside inner ring 1, there is no the support and connection structure between outer ring 2 and the inner ring 1, therefore, when permanent-magnet suspension bearing is installed, preferably, suit auxiliary bearing 8 on the stationary axle 14, this auxiliary bearing 8 is coaxial with the inner ring 1 of permanent-magnet suspension bearing.
Equally, the internal diameter of the running shaft 15 of hollow can equate everywhere, also can be stepped change, can select the outer ring external diameter of auxiliary bearing 8 according to the concrete structure of the running shaft 15 of hollow.
In the mounting structure of permanent-magnet suspension bearing described in the utility model, concrete structure to the running shaft 15 of stationary axle 14, auxiliary bearing 8 and hollow does not have specific (special) requirements, as long as can realize that auxiliary bearing 8 is coaxial with the inner ring 1 of permanent-magnet suspension bearing, the outer ring of auxiliary bearing 8 and the outer ring of permanent-magnet suspension bearing 2 are fixed on simultaneously on the internal surface of running shaft 15 and get final product.
Support or connection owing to there is no between the inner ring 1 of permanent-magnet suspension bearing and the outer ring 2, when this permanent-magnet suspension bearing was in load condition, outer ring 2 was inner ring 1 outside the suspension.When the running shaft 15 of hollow rotated, outer ring 2 rotated thereupon.On stationary axle 14, install with the coaxial auxiliary bearing 8 of inner ring 1 and can play effect the outer ring 2 of permanent-magnet suspension bearing to the heart, promptly, when the outer ring 2 of permanent-magnet suspension bearing is in rotation status, the central axes of the inner ring 1 of this outer ring 2, permanent-magnet suspension bearing, auxiliary bearing 8, running shaft 15 and stationary axle 14, thus make that the outer ring 2 under the high speed rotating state is more stable.
In addition, when running shaft 15 runnings, most of load is all born by permanent-magnet suspension bearing, and the load that auxiliary bearing 8 is born is very little, thereby makes that the frictional force of auxiliary bearing 8 inside is also very little, therefore, can the rotation of running shaft 15 be exerted an influence hardly.
Preferably, after the installation, the magnetic attracting force between the first radial permanent magnet body 3 of permanent-magnet suspension bearing and the permanent magnetism ring body 21 of permanent-magnet suspension bearing is opposite with the direction that acts on the load F on the running shaft 15.Like this, when running shaft 15 rotations, the gravity of the pressure of 15 pairs of outer rings 2 of running shaft and outer ring 2 and permanent magnetism ring body 21 self and the magnetic attracting force of 3 pairs of permanent magnetism ring bodies 21 of the first radial permanent magnet body balance each other, thereby outer ring 2 can be suspended outside inner ring 1, and do with inner ring 1 almost do not have the friction rotation, help being enclosed within the rotation of running shaft 15 of 2 outsides, outer ring of permanent-magnet suspension bearing, improve the working efficiency of running shaft 15.
In the mounting structure of the permanent-magnet suspension bearing shown in Fig. 6, only auxiliary bearing 8 has been installed in a side of permanent-magnet suspension bearing, yet the mounting structure of permanent-magnet suspension bearing described in the utility model is not limited to this, can also auxiliary bearing 8 be installed respectively in the both sides of permanent-magnet suspension bearing.And the form of auxiliary bearing 8 also can be various, for example can be the rolling bearing shown in Fig. 6, also can be other forms of bearing, as long as can play heart effect permanent-magnet suspension bearing.
The permanent magnetic suspending shaft bearing outer-ring that the utility model provides is a permanent magnet, can outside inner ring, suspend, be applicable to that more the outer ring is that rotor, inner ring are the workplace of stator, and the permanent-magnet suspension bearing that the utility model provides can have long length at its axial direction, can carry bigger load.
The mounting structure of the permanent-magnet suspension bearing that the utility model provides has adopted auxiliary bearing, permanent-magnet suspension bearing is played when radially mobile the effect of supplemental support in the outer ring of permanent-magnet suspension bearing, is more conducive to the steady running of permanent-magnet suspension bearing.
More than permanent-magnet suspension bearing provided by the utility model is described in detail.Though the utility model is disclosed by the foregoing description, yet the foregoing description is not in order to limit the utility model, any the utility model the technical staff in the technical field in not breaking away from spirit and scope of the present utility model, should do various changes and modification.Therefore protection domain of the present utility model should be as the criterion with the scope that appended claims was defined.
Claims (14)
1. a permanent-magnet suspension bearing is characterized in that, this permanent-magnet suspension bearing comprises:
Inner ring (1);
Outer ring (2), be fixed with a plurality of permanent magnetism ring bodies (21) on the inner peripheral surface of described outer ring (2), described inner ring (1) is enclosed within the described outer ring (2), the internal diameter of each described permanent magnetism ring body (21) is all greater than described inner ring (1) external diameter, and adjacent permanent magnetism ring body (21) in axial direction is spaced apart from each other;
A plurality of first radial permanent magnet bodies (3), these a plurality of first radial permanent magnet bodies (3) be fixed on that described inner ring (1) is gone up and respectively be fixed on described outer ring (2) on described a plurality of permanent magnetism ring bodies (21) corresponding, and described each first radial permanent magnet body (3) is radially gone up magnetic force with this pairing described permanent magnetism ring body of first radial permanent magnet body (3) (21) respectively and is inhaled mutually;
At least one axial permanent magnetic body (4), this at least one axial permanent magnetic body (4) is fixed on the outer peripheral surface that this inner ring (1) was gone up and protruded in to described inner ring (1), and described at least one axial permanent magnetic body (4) is positioned between the described permanent magnetism ring body (21), thereby makes described outer ring (2) be in the equilibrium of forces state in axial direction.
2. permanent-magnet suspension bearing according to claim 1, it is characterized in that, be under the non-bearing state in described outer ring (2), radially magnetic attracting force makes described permanent magnetism ring body (21) contact with described inner ring (1) or the described first radial permanent magnet body (3) between the described first radial permanent magnet body (3) and the described permanent magnetism ring body (21);
Be under the loaded state in described outer ring (2), described outer ring (2) suspend outside described inner ring (1), freely rotate carrying out.
3. permanent-magnet suspension bearing according to claim 1 is characterized in that, described axial permanent magnetic body (4) is a plurality of, is provided with a described axial permanent magnetic body (4) between per two adjacent described permanent magnetism ring bodies (21).
4. permanent-magnet suspension bearing according to claim 3 is characterized in that, each described axial permanent magnetic body (4) all is positioned at two described permanent magnetism ring bodies (21) in the axial direction the neutral position adjacent with this axial permanent magnetic body (4).
5. permanent-magnet suspension bearing according to claim 1 and 2, it is characterized in that each described permanent magnetism ring body (21) thickness in axial direction all is not more than the thickness of the described first radial permanent magnet body (3) corresponding with this permanent magnetism ring body (21) along described inner ring (1) axial direction.
6. permanent-magnet suspension bearing according to claim 1 is characterized in that, described inner ring (1) has groove (13), and the described first radial permanent magnet body (3) is fixedly mounted in the described groove (13).
7. according to claim 1,2 or 6 described permanent-magnet suspension bearings, it is characterized in that, the described first radial permanent magnet body (3) is the fan ring body coaxial with described inner ring (1), and the outer peripheral surface of the described first radial permanent magnet body (3) aligns with the outer peripheral surface of described inner ring (1).
8. according to claim 1,3 or 4 described permanent-magnet suspension bearings, it is characterized in that described axial permanent magnetic body (4) is the fan ring body coaxial with described inner ring (1).
9. according to any described permanent-magnet suspension bearing among the claim 1-4, it is characterized in that described axial permanent magnetic body (4) and the described first radial permanent magnet body (3) are the fan ring body coaxial with described inner ring (1); In the sectional drawing of the radial direction of this permanent-magnet suspension bearing of described permanent magnetism ring body (21) along one, the inner peripheral surface of the described first radial permanent magnet body of inhaling mutually with this permanent magnetism ring body (21) (3) be projected as first arc (11), the inner peripheral surface of the described axial permanent magnetic body (4) adjacent with this permanent magnetism ring body (21) be projected as second arc (12), this first arc (11) and second arc (12) are all with respect to the line symmetry between the mid point of the mid point of described first arc (11) and second arc (12), and the opening of described first arc (11) and second arc (12) toward each other.
10. permanent-magnet suspension bearing according to claim 9 is characterized in that, the central angle alpha of described first arc (11) be 60 the degree to 100 the degree, the central angle β of described second arc (12) be 120 the degree to 200 the degree.
11. permanent-magnet suspension bearing according to claim 1, it is characterized in that, this permanent-magnet suspension bearing also comprises a plurality of second radial permanent magnet bodies, these a plurality of second radial permanent magnet bodies and described a plurality of first radial permanent magnet body (3) are symmetrical arranged with respect to the central axis of described inner ring (1), and described each second radial permanent magnet body is opposite with this symmetrically arranged first radial permanent magnet body (3) pole orientation of second radial permanent magnet body institute.
12. permanent-magnet suspension bearing according to claim 1 and 2 is characterized in that, described a plurality of permanent magnetism ring bodies (21), described a plurality of first radial permanent magnet bodies (3) are in axial direction with the pole orientation of described at least one axial permanent magnetic body (4).
13. the mounting structure of a permanent-magnet suspension bearing is characterized in that, this mounting structure comprises:
Permanent-magnet suspension bearing, this permanent-magnet suspension bearing are any described permanent-magnet suspension bearing among the claim 1-12;
Auxiliary bearing (8), this auxiliary bearing (8) is coaxial with the inner ring (1) of described permanent-magnet suspension bearing;
Stationary axle (14), the described inner ring (1) of described permanent-magnet suspension bearing and the inner ring of described auxiliary bearing (8) are fixedly mounted on the outer peripheral surface of described stationary axle (14); With
The running shaft of hollow (15), the described outer ring (2) of described permanent-magnet suspension bearing and the outer ring of described auxiliary bearing (8) are fixedly mounted on the inner peripheral surface of this running shaft (15).
14. the mounting structure of permanent-magnet suspension bearing according to claim 13, it is characterized in that, after the installation, the magnetic attracting force between the described first radial permanent magnet body (3) of described permanent-magnet suspension bearing and the described permanent magnetism ring body (21) of described permanent-magnet suspension bearing is opposite with the loading direction that acts on the described running shaft (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200075245U CN202001498U (en) | 2011-01-11 | 2011-01-11 | Permanent magnetic suspension bearing and mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200075245U CN202001498U (en) | 2011-01-11 | 2011-01-11 | Permanent magnetic suspension bearing and mounting structure thereof |
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| Publication Number | Publication Date |
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| CN202001498U true CN202001498U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200075245U Expired - Lifetime CN202001498U (en) | 2011-01-11 | 2011-01-11 | Permanent magnetic suspension bearing and mounting structure thereof |
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| Country | Link |
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| CN (1) | CN202001498U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588433A (en) * | 2011-01-11 | 2012-07-18 | 张平 | Permanent magnet suspension bearing and installation structure thereof |
| CN102644662A (en) * | 2012-05-03 | 2012-08-22 | 洛阳润环电机轴承有限公司 | Magnetic suspension bearing |
| WO2015101276A1 (en) * | 2013-12-30 | 2015-07-09 | 李国坤 | Pivoting micro-friction or friction-free radial permanent magnet floating bearing |
| CN109296640A (en) * | 2018-12-02 | 2019-02-01 | 迈格钠磁动力股份有限公司 | A kind of permanent-magnet suspension bearing of high bearing capacity |
| CN112253525A (en) * | 2020-10-13 | 2021-01-22 | 珠海格力电器股份有限公司 | Protection device for magnetic suspension compressor and magnetic suspension compressor |
-
2011
- 2011-01-11 CN CN2011200075245U patent/CN202001498U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588433A (en) * | 2011-01-11 | 2012-07-18 | 张平 | Permanent magnet suspension bearing and installation structure thereof |
| CN102588433B (en) * | 2011-01-11 | 2016-08-17 | 北京京冶永磁悬浮轴承有限公司 | A kind of permanent-magnet suspension bearing and mounting structure thereof |
| CN102644662A (en) * | 2012-05-03 | 2012-08-22 | 洛阳润环电机轴承有限公司 | Magnetic suspension bearing |
| CN102644662B (en) * | 2012-05-03 | 2014-12-03 | 洛阳润环电机轴承有限公司 | Magnetic suspension bearing |
| WO2015101276A1 (en) * | 2013-12-30 | 2015-07-09 | 李国坤 | Pivoting micro-friction or friction-free radial permanent magnet floating bearing |
| EP3096030A4 (en) * | 2013-12-30 | 2017-11-15 | Li, Guokun | Pivoting micro-friction or friction-free radial permanent magnet floating bearing |
| CN109296640A (en) * | 2018-12-02 | 2019-02-01 | 迈格钠磁动力股份有限公司 | A kind of permanent-magnet suspension bearing of high bearing capacity |
| CN112253525A (en) * | 2020-10-13 | 2021-01-22 | 珠海格力电器股份有限公司 | Protection device for magnetic suspension compressor and magnetic suspension compressor |
| CN112253525B (en) * | 2020-10-13 | 2021-10-08 | 珠海格力电器股份有限公司 | Protection device for magnetic suspension compressor and magnetic suspension compressor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING JINGYE MAGNETIC LEVITATION BEARING CO., LT Free format text: FORMER OWNER: ZHANG PING Effective date: 20150428 Free format text: FORMER OWNER: GUAN JIASHU ZHANG SIWEI Effective date: 20150428 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100031 XICHENG, BEIJING TO: 100068 FENGTAI, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150428 Address after: 100068 Beijing, Fengtai District, South West Third Ring Road, building 16, floor 3, No. 1910, 16 Patentee after: Beijing JingYe Magnetic Levitation Bearing Co., Ltd. Address before: 100031 Beijing City, Xicheng District Xuanwu West Street No. 97 B is building room 906 Patentee before: Zhang Ping Patentee before: Guan Jiashu Patentee before: Zhang Siwei |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151019 Address after: 224400 No. 68, Funing Economic Development Zone, Jiangsu, Huayuan Road Patentee after: Jiangsu jingyei sea wind power bearing manufacturing Co. Address before: 100068 Beijing, Fengtai District, South West Third Ring Road, building 16, floor 3, No. 1910, 16 Patentee before: Beijing JingYe Magnetic Levitation Bearing Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20111005 Effective date of abandoning: 20160817 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |