CN201928169U - Rotor disc structure of disc permanent magnet motor or disc flywheel battery - Google Patents
Rotor disc structure of disc permanent magnet motor or disc flywheel battery Download PDFInfo
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- CN201928169U CN201928169U CN2011200302855U CN201120030285U CN201928169U CN 201928169 U CN201928169 U CN 201928169U CN 2011200302855 U CN2011200302855 U CN 2011200302855U CN 201120030285 U CN201120030285 U CN 201120030285U CN 201928169 U CN201928169 U CN 201928169U
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- rotor disk
- disc
- connecting ring
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Abstract
The utility model relates to a rotor disc structure of a disc permanent magnet motor or a disc flywheel battery, which is characterized in that the rotor disc structure comprises a first rotor disc and a second rotor disc, a first connecting ring which stretches out along an axial direction and is concentric with the first rotor disc is arranged on one side of the first rotor disc which faces to the second rotor disc, a second connecting ring which stretches out along an axial direction and is concentric with the second rotor disc is arranged on one side of the second rotor disc which faces to the first rotor disc, the inner diameter, the outer diameter and the height of the first connecting ring are respectively equal to the outer diameter and the height of the second connecting ring, a plurality of grooves are respectively arranged on the abutted surfaces of the first connecting ring and the second connecting ring to form a plurality of teeth, the teeth of the first connecting ring are inserted into the grooves of the second connecting ring to enable the first connecting ring and the second connecting ring to be engaged with each other, and a movable ring which is in interference fit with the first connecting ring and the second connecting ring is sheathed on the outer diameter after the first connecting ring and the second connecting ring are abutted. The rotor disc structure is convenient to assemble and repair. When the rotor disc structure rotates at high speed, the coaxiality of the two rotor discs is good and the stability is high.
Description
Technical field
The utility model relates to disc-type permanent magnet motor or web-type flywheel field of batteries, and is especially relevant with the rotor disk structure of disc-type permanent magnet motor or web-type flywheel battery.
Background technology
The power frequency of high-speed electric expreess locomotive is very high, if stator core construction is arranged, then ferromagnetic loss will be very big, and efficient obviously descends.And the disc-type permanent magnet motor of double rotor single stator structure is stator discs of two rotor disk therebetween, and its advantage is that stator does not have iron core, does not have ferromagnetic loss under high-speed case, and efficient is very high.This kind high speed disc magneto, if the thickness and the weight of rotor disk are increased, just obtain a kind of web-type flywheel battery (flywheel energy storage system), more kinetic energy can be stored on rotor disk, when needs, disc type electric machine can be passed through, electric energy is converted into kinetic energy, be stored on two rotor disks, perhaps the kinetic energy on two rotor disks transformed electric energy, discharge.Owing to exist very big centrifugal force on the rotor disk at a high speed, so the stress on the rotor disk also very big (center stress maximum).If at the rotor disk center drilling, with an axle two rotor disks are coupled together then, then the center can produce stress and concentrates, and might surpass the ultimate strength of material, cause rotor disk to destroy, disintegration.
For this reason, following two ways are adopted in the connection between two rotor disks usually.
1, passes through the small circle ring socket of interference fit.
Consult Fig. 1, at the middle part of two rotor disk 1a, 2a respectively to stretch out small circle ring 11a, a 21a towards direction each other, the center of circle of small circle ring 11a, 21a overlaps with the center of circle of rotor disk 1a, 2a, spacing between height and two rotor disk 1a, the 2a is suitable, the internal diameter of one of them annulus 21a is slightly less than the external diameter of another annulus 11a, and is then that two annulus 11a, 21a are relative, compresses, form interference fit, and guarantee axiality with this.
The problem of this kind connected mode is that the bigger magnitude of interference must be arranged.Because under the situation of high speed rotating, rotor disk 1a, 2a are bearing very big stress, cause them radially to expand, thereby driving small circle ring 11a, 21a expands outward, and because the continuous stack of swell increment, make the big more place of radius (from the center of circle far away more place), swell increment is also big more, so the swell increment of the small circle ring 21a of outside is also greater than the swell increment of the small circle ring 11a of the inside.If the magnitude of interference is big inadequately, will cause inside and outside small circle ring 11a, 21a to get loose, thereby make two rotor disk 1a, 2a be difficult to guarantee axiality and stability, can lead to major accident when situation is serious.
2, connect by spline.
Consult Fig. 2, spline 11b is set, connect by spline 11b then, and utilize the suction of two permanent magnets on rotor disk 1b, the 2b to compress spline 11b in the junction of two rotor disk 1b, 2b.
The problem of this kind connected mode is that the processing of spline is very complicated, and the spline on the rotor disk itself also can cause the mating surface of spline the gap to occur along with rotor disk expands together, thereby influences the axiality and the stability of two rotor disks.
Given this, be necessary the syndeton of rotor disk of the prior art is improved, with axiality and the stability that improves two rotor disks.
Summary of the invention
The technical problems to be solved in the utility model is to overcome the deficiency that above-mentioned prior art exists, and the rotor disk structure of a kind of disc-type permanent magnet motor or web-type flywheel battery is provided, and this rotor disk axiality is good, and stability is high.
For solving the problems of the technologies described above, the utility model provides the rotor disk structure of a kind of disc-type permanent magnet motor or web-type flywheel battery, comprise: the first rotor dish and second rotor disk, the first rotor card to second rotor disk, one side be provided with that stretch out vertically and a first rotor dish concentric first be connected annulus, second rotor disk face to a side of the first rotor dish be provided with that stretch out vertically and second rotor disk concentric second be connected annulus, described first connects annulus is connected annulus with described second internal diameter, external diameter and highly all equal, and connect on annulus is connected annulus with second the interface first and to be respectively arranged with the multiple tracks groove to form a plurality of teeth, described first teeth that connect annulus are inserted described second and are connected in the groove of annulus the two is meshing with each other, form a complete annulus, in first outside sheathed one and first that connects annulus is connected the annulus butt joint with second after, second connects the movable annulus of annulus interference fit.
Further, the depth of groove on described first, second connection annulus connects half of annulus height at least greater than first, second.
Further, at described the first rotor dish and described second rotor disk outer surface away from each other one rotating shaft is set respectively, two rotating shaft cores are on same straight line, and the axis coinciding of the axle center of two rotating shafts and first, second rotor disk.
Further, the material of the material of the described first connection annulus and the described second connection annulus is identical.
Further, the density of the material of described movable annulus connects the material density of annulus less than first, second.
Further, the modulus of elasticity of the material of described movable annulus connects the modulus of elasticity of the material of annulus less than first, second.
Useful technique effect of the present utility model is: rotor disk of the present utility model is simple in structure, convenient for assembly and maintenance; In addition, during rotor disk work, owing to stress suffered on the rotor disk is very big, drive two annulus and expand outward, and the external diameter of the annulus on two rotor disks equates, so expansion rate is equal, but because the radius and the quality of movable annulus are all little than rotor disk, quality is little, and suffered centrifugal force is less, and stress is also less, so swell increment is less, so just from the outside the annulus on two rotor disks is tightly waled, formed the very big magnitude of interference, thereby effectively guaranteed the axiality and the stability of two rotor disks.
Description of drawings
Fig. 1 is the schematic diagram of a kind of rotor disk syndeton of the prior art.
Fig. 2 is the schematic diagram of another kind of rotor disk syndeton of the prior art.
Fig. 3 is the axial cross-sectional schematic of the utility model rotor disk syndeton.
Fig. 4 is the radially cross-sectional schematic of the utility model rotor disk syndeton.
Embodiment
Consult Fig. 3, Fig. 4, disc-type permanent magnet motor of the present utility model comprises: two a first rotor dish 1 and one second rotor disks 2 that are provided with relatively at interval, at a first rotor dish 1 and second rotor disk 2 end away from each other one rotating shaft 5 is set respectively, the axle center of two rotating shafts 5 is on same straight line, and the axle center of two rotating shafts 5 overlaps with the center of circle of first, second rotor disk 1,2.In the interval between the first rotor dish 1 and second rotor disk 2 stator 3 is set.The first rotor dish 1 in the face of second rotor disk, 2 one sides be provided with outwardly directed and a first rotor dish 1 concentric first be connected annulus 11, second rotor disk 2 in the face of a side of the first rotor dish 1 be provided with outwardly directed and second rotor disk 2 concentric second be connected annulus 21, this first rotor dish 1 is connected annulus 11,21 with second rotor disk 2 by first, second and realizes the connection of the two.This first connection annulus 11 is connected the inside and outside footpath of annulus 21 and highly all equates with second, and first connect be respectively arranged with on annulus 11 is connected annulus 21 with second the interface multiple tracks groove with the teeth 111 that form a plurality of teeth 111,211, the first and connect annulus 11 insert second connect the groove of annulus 21 interior so that the two be meshing with each other.In order to guarantee that first, second connects the intensity of annulus 11,21 engagements, preferably make first, second depth of groove that connects on the annulus 11,21 connect highly half of annulus 11,21 greater than first, second at least.Connect annulus 11 first and is connected on the external diameter after annulus 21 docks the sheathed one movable annulus 4 that is connected annulus 11,12 interference fit with first, second with second, the internal diameter of movable annulus 4 is slightly less than first, second external diameter that connects annulus 11,12, and the height of movable annulus 4 be connected the height of annulus 11,21 with first, second equal.
During assembling, movable annulus 4 is enclosed within earlier on the connection annulus 11 or 21 of one of them rotor disk 1 or 2, then that the connection annulus 11,21 on first, second rotor disk 1,2 is relative, make the two engagement assembling, by the suction of the permanent magnet on first, second rotor disk 1,2 close tight after, these two the connection annulus 11,21 that process teeth 111,211 are combined into a complete annulus, and waled with the small magnitude of interference, thereby the axiality and the stability of first, second rotor disk 1,2 have been guaranteed by movable annulus 4.
During work, because stress suffered on first, second rotor disk 1,2 is very big, so driving first, second connection annulus 11,12, it expands outward, because the first connection annulus 11 is connected the external diameter of annulus 12 and equates with second, so expansion rate equates, but because the radius of movable annulus 4 is little, quality is little, suffered centrifugal force is less, stress is also less, so swell increment is less, so just from the outside the connection annulus on two rotor disks 11,12 is tightly waled, form the very big magnitude of interference, thereby guarantee the axiality and the stability of two rotor disks.
In the specific implementation, select the material of first, second rotor disk 1,2 earlier, the material that makes first, second connect annulus 11,21 is identical with its corresponding rotor disk, make the density lighter (thereby stress is littler) of movable annulus 4 materials, modulus bigger (thereby it is littler to expand), so just make that the expansion rate of movable annulus 4 is little more a lot of than the expansion rate of two connection annulus 11,12, the magnitude of interference that cooperates between them when high speed rotating is bigger.Need to prove, be a kind of embodiment preferred about Material Selection herein, when reality is used not as limit.
In sum, the utility model respectively is provided with in one by the joint at two rotor disks, the annulus that external diameter all equates, two annulus intermesh to realize circumferentially connecting the location by teeth, then in the outside of two annulus the sheathed one movable annulus that is independent of rotor disk to realize radial location, during work, because stress suffered on the rotor disk is very big, driving two annulus expands outward, the external diameter of the annulus on two rotor disks equates, so expansion rate equates, but because the radius of movable annulus is little, quality is little, suffered centrifugal force is less, stress is also less, so swell increment is less, so just from the outside the annulus on two rotor disks is tightly waled, form the very big magnitude of interference, thereby further guaranteed the axiality and the stability of two rotor disks.
The above only is a preferable possible embodiments of the present utility model, and unrestricted protection range of the present utility model, and the equivalent structure that all utilization the utility model specifications and accompanying drawing content have been done changes, and all is included in the protection range of the present utility model.
Claims (6)
1. the rotor disk structure of disc-type permanent magnet motor or web-type flywheel battery, it is characterized in that, comprise: the first rotor dish and second rotor disk, the first rotor card to second rotor disk, one side be provided with that stretch out vertically and a first rotor dish concentric first be connected annulus, second rotor disk face to a side of the first rotor dish be provided with that stretch out vertically and second rotor disk concentric second be connected annulus, described first connects annulus is connected annulus with described second internal diameter, external diameter and highly all equal, and connect on annulus is connected annulus with second the interface first and to be respectively arranged with the multiple tracks groove to form a plurality of teeth, described first teeth that connect annulus are inserted described second and are connected in the groove of annulus the two is meshing with each other, form a complete annulus, in first outside sheathed one and first that connects annulus is connected the annulus butt joint with second after, second connects the movable annulus of annulus interference fit.
2. the rotor disk structure of disc-type permanent magnet motor as claimed in claim 1 or web-type flywheel battery is characterized in that, the depth of groove on described first, second connection annulus connects half of annulus height at least greater than first, second.
3. the rotor disk structure of disc-type permanent magnet motor as claimed in claim 1 or web-type flywheel battery, it is characterized in that, at described the first rotor dish and described second rotor disk outer surface away from each other one rotating shaft is set respectively, two rotating shaft cores are on same straight line, and the axis coinciding of the axle center of two rotating shafts and first, second rotor disk.
4. the rotor disk structure of disc-type permanent magnet motor as claimed in claim 1 or web-type flywheel battery is characterized in that, the material that described first material and described second that connects annulus connects annulus is identical.
5. the rotor disk structure of disc-type permanent magnet motor as claimed in claim 4 or web-type flywheel battery is characterized in that, the density of the material of described movable annulus connects the material density of annulus less than first, second.
6. the rotor disk structure of disc-type permanent magnet motor as claimed in claim 4 or web-type flywheel battery is characterized in that, the modulus of elasticity of the material of described movable annulus connects the modulus of elasticity of the material of annulus less than first, second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200302855U CN201928169U (en) | 2011-01-28 | 2011-01-28 | Rotor disc structure of disc permanent magnet motor or disc flywheel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200302855U CN201928169U (en) | 2011-01-28 | 2011-01-28 | Rotor disc structure of disc permanent magnet motor or disc flywheel battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928169U true CN201928169U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200302855U Expired - Fee Related CN201928169U (en) | 2011-01-28 | 2011-01-28 | Rotor disc structure of disc permanent magnet motor or disc flywheel battery |
Country Status (1)
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| CN (1) | CN201928169U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624174A (en) * | 2011-01-28 | 2012-08-01 | 深圳飞能能源有限公司 | Disk structure of disk type permanent magnet motor or disk type flywheel battery and connection method of rotor disk structure |
| CN114128113A (en) * | 2019-05-17 | 2022-03-01 | 立行有限公司 | Improvement of axial flux rotary generator structure |
-
2011
- 2011-01-28 CN CN2011200302855U patent/CN201928169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624174A (en) * | 2011-01-28 | 2012-08-01 | 深圳飞能能源有限公司 | Disk structure of disk type permanent magnet motor or disk type flywheel battery and connection method of rotor disk structure |
| CN114128113A (en) * | 2019-05-17 | 2022-03-01 | 立行有限公司 | Improvement of axial flux rotary generator structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20150128 |
|
| EXPY | Termination of patent right or utility model |