CN105245046A - High speed motor rotor structure and processing technology - Google Patents
High speed motor rotor structure and processing technology Download PDFInfo
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- CN105245046A CN105245046A CN201510702656.2A CN201510702656A CN105245046A CN 105245046 A CN105245046 A CN 105245046A CN 201510702656 A CN201510702656 A CN 201510702656A CN 105245046 A CN105245046 A CN 105245046A
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- rotor
- bearing
- high speed
- rotating shaft
- coolant
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- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a high speed motor rotor structure and a processing technology. The high speed motor rotor structure comprises a first bearing, a second bearing, and a hollow rotor. The first bearing and the second bearing are arranged on two ends of the hollow rotor and the hollow rotor comprises a rotation shaft. The high speed motor rotor structure is characterized in that a first channel is arranged on the shaft center of the rotation shaft for the cooling medium to flow; the first channel is provided with a first cooling medium inflow terminal and a first cooling medium outflow terminal; the first cooling medium inflow terminal is adjacent to the first bearing and is communicated with the first channel; the first cooling medium outflow terminal is a through hole going through the shaft center and the surface of the rotation shaft; and the first cooling medium outflow terminal is adjacent to the second bearing; The high speed motor rotor structure is provided with the channel on the shaft center of the rotation shaft for the cooling medium to flow and is provided with the through hole on the medium outflow terminal which goes through the shaft center and the surface of the rotation shaft. When the rotor rotates at high speed, a centrifugal force is generated due to the high speed rotation of the rotation shaft, which enables the cooling medium to be discharged from the through hole on the surface of the rotation shaft and takes away the heat generated during the rotation of the rotation shaft. As a result, the speed of the rotation shaft is improved and the service life of the motor is prolonged.
Description
Technical field
The present invention relates to machine field, particularly a kind of high speed rotor of motor structure and processing technology.
Background technology
The difficult point of high-speed engine development is a lot, specifically has:
One is that rotor structure difficulty is large, and rotor permanent magnet bears heavily stressed, structural strength and rigidity requirement high;
Two is that rotor High Rotation Speed output voltage frequency is high, motor high-frequency loss and heat dissipation design difficulty;
Three is the design of motor high-speed bearing and environmental suitability etc.
Rotor or rotating shaft are under High Rotation Speed, and owing to can produce more heat by stator field and self rotation, heat dissipation problem becomes the major reason improving rotor or rotating shaft speed.
Summary of the invention
The invention provides a kind of high speed rotor of motor structure and processing technology, arrange from axle center to the hole on rotating shaft surface at medium outflow end, when rotor is in high-speed rotation, because rotating shaft high-speed rotary transfers to produce centrifugal force, coolant is discharged by the hole on rotating shaft surface, take away the heat that rotating shaft produces under High Rotation Speed, improve the rotary speed of rotating shaft, and machine shaft useful life can be improved.
A kind of high speed rotor of motor structure provided by the invention, comprise clutch shaft bearing, second bearing, sleeve rotor, described clutch shaft bearing and the second bearing lay respectively at the two ends of described sleeve rotor, described sleeve rotor comprises rotating shaft, this structure also comprises: the first passage of axle center for coolant circulation being positioned at described rotating shaft, described first passage is provided with cooling first medium and flows into end and the first coolant outflow end, described first coolant flows into the close described clutch shaft bearing of end and communicates with described first passage, described first coolant outflow end is the through hole that surface communicates from the axle center of described rotating shaft to rotating shaft, described first coolant outflow end is near the second bearing.
Further, this structure also comprises: on described sleeve rotor and near described second bearing whirligig, around the stator of described sleeve rotor, the second channel between described stator and described sleeve rotor, described second channel is provided with second medium and flows into end and second medium outflow end, described second medium flows into end near described clutch shaft bearing and communicates with described second channel, and described second coolant outflow end is near described whirligig and communicate with described second channel.
Further, this structure also comprises the permanent magnet be positioned on described sleeve rotor, and described permanent magnet is neodymium iron boron.
Further, described permanent magnet is integral type structure.
Further, described permanent magnet is split blade type structure.
Further, described through hole is multiple, is sequentially arranged in the outer surface of described rotating shaft.
Further, described clutch shaft bearing and the second bearing are electromagnetic bearing or air bearing.
Present invention also offers a kind of processing technology of high speed rotor of motor structure, it is characterized in that, comprise the following steps:
S1: sleeve rotor is by the machine-shaping of turning one;
S2: punch in the axle center of sleeve rotor;
S3: inject permanent magnet in sleeve rotor;
S4: capping is carried out to sleeve rotor;
S5: the surface of grinding rotor body;
S6: magnetize.
Beneficial effect of the present invention is as follows: arrange from axle center to the hole on rotating shaft surface at medium outflow end, when rotor is in high-speed rotation, because rotating shaft high-speed rotary transfers to produce centrifugal force, coolant is discharged by the through hole on rotating shaft surface, take away the heat that rotating shaft produces under High Rotation Speed, improve the rotary speed of rotating shaft, and machine shaft useful life can be improved.
Accompanying drawing explanation
The structural representation of a kind of high speed rotor of motor structure that Fig. 1 provides for patent Example of the present invention;
The structural representation of the integral type permanent magnet that Fig. 2 provides for patent Example of the present invention;
The structural representation of the split blade type permanent magnet that Fig. 3 provides for patent Example of the present invention;
The structural representation of the second coolant output that Fig. 4 provides for patent Example of the present invention.
Wherein 1-clutch shaft bearing, 2-second bearing, 3-sleeve rotor, 4-whirligig, 5-first passage, 6-first coolant input, 7-first coolant output, 8-stator, 9-permanent magnet, 10-radome, 11-second coolant input, 12-second channel, 13-second coolant output, 14-rotating shaft.
Embodiment
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
See Fig. 1, a kind of high speed rotor of motor structure, comprise clutch shaft bearing 1, second bearing 2, sleeve rotor 3, described clutch shaft bearing 1 and the second bearing 2 lay respectively at the two ends of described sleeve rotor 3, described sleeve rotor 3 comprises rotating shaft 14, this structure also comprises: the first passage 5 of axle center for coolant circulation being positioned at described rotating shaft 14, described first passage 5 is provided with cooling first medium and flows into end 6 and the first coolant outflow end 7, described first coolant flows into end 6 and to communicate with described first passage 5 near described clutch shaft bearing 1, described first coolant outflow end 7 is the hole communicated to rotating shaft 14 surface from the axle center of described rotating shaft 14, described first coolant outflow end 7 is near the second bearing 2.When motor High Rotation Speed, drive sleeve rotor 3 High Rotation Speed, sleeve rotor and rotating shaft are the fixed structure of integral type, by arranging the first passage 5 for coolant circulation in the axle center of sleeve rotor rotating shaft 14, be provided with first medium at first passage 5 and flow into end 6 and first medium output 7, High Rotation Speed causes rotor to produce a large amount of heats, the first external coolant source of coolant input 6, coolant is inputted from the first coolant input 6, through first passage 5, arrive first medium output 7, because first medium output 7 is that the axle center of described rotating shaft 14 is to the surperficial through hole communicated of rotating shaft, namely first passage 5 and first medium output 7 communicate with rotating shaft 14 outer surface, namely described through hole is equal to and first medium output 7, under the rotation of rotating shaft high speed, rotating shaft self can produce centrifugal force, coolant is discharged from the through hole of rotating shaft outer surface, take away the heat that rotating shaft inside produces endlessly, the temperature in rotating shaft can be reduced, improve the rotary speed of rotating shaft, and improve the useful life of machine shaft.
Shown in Fig. 4, in a particular embodiment, described through hole can be multiple, this some holes is the first coolant output 7, by punching to axle center at the outer surface of rotating shaft 14, hole can be communicated with described first passage 5 (axle center), is sequentially arranged in the outer surface of rotating shaft 14, make coolant discharge so many, take away the inner more heat of rotating shaft; In the particular embodiment, all right lack of alignment of through hole is in rotating shaft, and the size of through hole can be arranged according to actual conditions.
In the particular embodiment, this structure also comprises: on described sleeve rotor 3 and near described second bearing whirligig 4, around the stator 8 of described sleeve rotor and the second channel 12 between described stator 8 and described sleeve rotor 3, described second channel 12 is provided with second medium and flows into end 11 and second medium outflow end 13, described second medium to flow into end 11 near described clutch shaft bearing 1 and communicates with described second channel 12, and described second coolant outflow end 13 is near described whirligig 4 and communicate with described second channel 12.Owing to there is second channel 12 in the middle of sleeve rotor 3 and stator 8, the second cooling external coolant source of input 11, coolant arrives second channel 12 by the second coolant input 11, finally discharge from the second cooling output 13, whirligig 4 rotates together in company with sleeve rotor 3, whirligig 4 ceaselessly rotates just as an axial flow blower, ceaselessly absorb coolant at second medium output 13, coolant is impelled to enter from the second coolant input 11, through second channel 12, coolant is discharged from second medium output 13, such coolant just takes away the heat because rotating generation between stator 8 and sleeve rotor 3, coolant circulates between stator 8 and sleeve rotor 3, take away the heat produced because of rotation between stator 8 and sleeve rotor 3 endlessly, the rotary speed of rotating shaft can be improved, and improve the useful life of machine shaft and rotor.
Described whirligig 4 can be the device of blade or other energy practical functions, its function realized is the coolant discharge not stopped Rotational Absorption second coolant output by this device, impel coolant ceaselessly to circulate, take away the heat between stator and sleeve rotor.
In the particular embodiment, coolant is the medium with refrigerating function.Second channel 12 also can be the gap between sleeve rotor 3 own and stator 8, as long as can ensure that coolant inputs from second medium input 11, second medium output exports such gap or the space of 13.
In the particular embodiment, this structure also comprises the permanent magnet 9 be positioned on described sleeve rotor 3, and described permanent magnet 9 is neodymium iron boron, also can have the material of epistasis magnetic for other.Permanent magnet 9 enters on sleeve rotor 3 by injection, before injection permanent magnet, can to sleeve rotor 3 burst, namely with dividing plate or other objects by sleeve rotor dimidiation, the permanent magnet just becoming split blade type structure of dimidiation after injection permanent magnet; Sleeve rotor is not separated and carry out injection permanent magnet, it is just the permanent magnet of integral type structure, become integral structure or split blade type structure like this, when the rotor is turning, the centrifugal force that the structure of such permanent magnet self produces is little, decrease the temperature in rotor, rotor structure intensity also gets a promotion.
In the particular embodiment, described clutch shaft bearing 1 and the second bearing 2 are electromagnetic bearing, can be also all air bearing, and clutch shaft bearing 1 and the second bearing 2 can fixation hollow rotors at this, ensure that rotating shaft and rotor are stable in rotary course.
In the particular embodiment, the limit of whirligig can also be provided with gland, and whirligig is stuck on sleeve rotor by gland, thus fixing whirligig.
In this high speed rotor of motor structure, often need to improve power to more than 100 kilowatts, can by carrying out the same rotor structure of series connection one on the basis of this rotor structure.The connected mode of concrete series connection is not limited to way of example described below.Rotor structure one end connects turbine, the other end is for be fixed on sleeve rotor by gland by whirligig, the gland of the rotor structure on basis is provided with the engaging position of protruding or caving in, the rotating shaft end of the rotor structure sleeve rotor of connecting with it is provided with the device matched with the engaging position on gland, ensure that two rotors can be fastened togather and synchronous normal work completely, like this by series connection rotor structure and then increase power.
In above-mentioned all embodiments, all can be implemented by one or several embodiment various combination.
Present invention also offers a kind of processing technology of high speed rotor of motor structure, it is characterized in that, comprise the following steps:
S1: sleeve rotor is by the machine-shaping of turning one;
S2: punch in the axle center of rotating shaft;
S3: inject permanent magnet in sleeve rotor;
S4: capping is carried out to sleeve rotor;
S5: the surface of grinding rotor body;
S6: magnetize.
In S1 process, sleeve rotor is formed type by turnery processing, sleeve rotor has rotating shaft;
In S2 process, in the punching of the axle center of the rotating shaft of sleeve rotor, form the first passage for coolant circulation and first medium outflow end, first medium is installed and flows into end;
In S3 process, permanent magnet is injected in sleeve rotor, permanent magnet can be the magnetic material of neodymium iron boron or other high high-quality performances, in the process, can first to sleeve rotor burst, be divided into two parts by sleeve rotor dividing plate or other objects, then sleeve rotor two parts are magnetized formation permanent magnet, so just obtain the permanent magnet of split blade type structure; If not to sleeve rotor burst, namely to sleeve rotor injection neodymium iron boron or high performance magnetic material, finally define the permanent magnet of integral structure;
In S4 process, the permanent magnet injected is carried out capping, the opening of the permanent magnet in sleeve rotor is sealed;
In S5 process, because rotor is in high-speed rotation, if the outside of rotor is rough and uneven in surface, will increase the resistance in its rotary course, resistance greatly i.e. frictional force is large, and the heat of generation just increases, the in-fighting of internal rotor will increase, therefore carry out precise finiss, make smooth surface, the rotary speed of rotor can be improved and reduce the generation of heat;
In S6, rotor structure is magnetized, just become finished product.
In the particular embodiment, after step S6, can also carry out installation whirligig to this device and install stator, these two processes be distinguished without sequencing, key be the last product of this processing technology the need of selecting assembling device and stator, select according to actual conditions.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then invent also intention and comprise these change and modification.
Claims (8)
1. a high speed rotor of motor structure, comprises clutch shaft bearing, the second bearing, sleeve rotor, it is characterized in that, described clutch shaft bearing and the second bearing lay respectively at the two ends of described sleeve rotor, and described sleeve rotor comprises rotating shaft, and this structure also comprises:
Be positioned at the first passage of axle center for coolant circulation of described rotating shaft, described first passage is provided with cooling first medium and flows into end and the first coolant outflow end, described first coolant flows into the close described clutch shaft bearing of end and communicates with described first passage, described first coolant outflow end is the through hole that surface communicates from the axle center of described rotating shaft to rotating shaft, and described first coolant outflow end is near the second bearing.
2. high speed rotor of motor structure according to claim 1, it is characterized in that, this structure also comprises: on described sleeve rotor and near described second bearing whirligig, around the stator of described sleeve rotor, the second channel between described stator and described sleeve rotor, described second channel is provided with second medium and flows into end and second medium outflow end, described second medium flows into end near described clutch shaft bearing and communicates with described second channel, and described second coolant outflow end is near described whirligig and communicate with described second channel.
3. high speed rotor of motor structure according to claim 1, is characterized in that, this structure also comprises the permanent magnet be positioned on described sleeve rotor, and described permanent magnet is neodymium iron boron.
4. high speed rotor of motor structure according to claim 3, is characterized in that, described permanent magnet is integral type structure.
5. high speed rotor of motor structure according to claim 3, is characterized in that, described permanent magnet is split blade type structure.
6. high speed rotor of motor structure according to claim 1, is characterized in that, described through hole is multiple and is sequentially arranged in the outer surface of described rotating shaft.
7. high speed rotor of motor structure according to claim 1, is characterized in that, described clutch shaft bearing and the second bearing are electromagnetic bearing or air bearing.
8. a processing technology for high speed rotor of motor structure, is characterized in that, comprises the following steps:
S1: sleeve rotor is by the machine-shaping of turning one;
S2: punch in the axle center of sleeve rotor;
S3: inject permanent magnet in sleeve rotor;
S4: capping is carried out to sleeve rotor;
S5: the surface of grinding rotor body;
S6: magnetize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510702656.2A CN105245046A (en) | 2015-10-26 | 2015-10-26 | High speed motor rotor structure and processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510702656.2A CN105245046A (en) | 2015-10-26 | 2015-10-26 | High speed motor rotor structure and processing technology |
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| Publication Number | Publication Date |
|---|---|
| CN105245046A true CN105245046A (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510702656.2A Pending CN105245046A (en) | 2015-10-26 | 2015-10-26 | High speed motor rotor structure and processing technology |
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| Country | Link |
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| CN (1) | CN105245046A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231049A (en) * | 2017-06-20 | 2017-10-03 | 上海蔚来汽车有限公司 | Rotor liquid cooling structure |
Citations (8)
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|---|---|---|---|---|
| US6982506B1 (en) * | 2004-08-31 | 2006-01-03 | Hamilton Sundstrand Corporation | Cooling of high speed electromagnetic rotor with fixed terminals |
| JP2010041791A (en) * | 2008-08-04 | 2010-02-18 | Toyota Motor Corp | Rotor |
| CN101931281A (en) * | 2009-06-17 | 2010-12-29 | 哈米尔顿森德斯特兰德公司 | Oil cooled generator |
| CN102208845A (en) * | 2010-03-30 | 2011-10-05 | 株式会社日立制作所 | Permanent magnetic rotating electric machine and wind power generating system |
| CN103081312A (en) * | 2011-03-02 | 2013-05-01 | 株式会社小松制作所 | Cooling mechanism for electric motor and electric motor |
| CN203086307U (en) * | 2012-04-25 | 2013-07-24 | 山西北方机械制造有限责任公司 | Permanent magnet synchronous motor with ventilation structure |
| CN204186435U (en) * | 2014-09-30 | 2015-03-04 | 北京精密机电控制设备研究所 | A kind of foil bearing lubrication is with rotating cavity jet rotor |
| CN205051468U (en) * | 2015-10-26 | 2016-02-24 | 王石柱 | High speed motor rotor structure |
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2015
- 2015-10-26 CN CN201510702656.2A patent/CN105245046A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6982506B1 (en) * | 2004-08-31 | 2006-01-03 | Hamilton Sundstrand Corporation | Cooling of high speed electromagnetic rotor with fixed terminals |
| JP2010041791A (en) * | 2008-08-04 | 2010-02-18 | Toyota Motor Corp | Rotor |
| CN101931281A (en) * | 2009-06-17 | 2010-12-29 | 哈米尔顿森德斯特兰德公司 | Oil cooled generator |
| CN102208845A (en) * | 2010-03-30 | 2011-10-05 | 株式会社日立制作所 | Permanent magnetic rotating electric machine and wind power generating system |
| CN103081312A (en) * | 2011-03-02 | 2013-05-01 | 株式会社小松制作所 | Cooling mechanism for electric motor and electric motor |
| CN203086307U (en) * | 2012-04-25 | 2013-07-24 | 山西北方机械制造有限责任公司 | Permanent magnet synchronous motor with ventilation structure |
| CN204186435U (en) * | 2014-09-30 | 2015-03-04 | 北京精密机电控制设备研究所 | A kind of foil bearing lubrication is with rotating cavity jet rotor |
| CN205051468U (en) * | 2015-10-26 | 2016-02-24 | 王石柱 | High speed motor rotor structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231049A (en) * | 2017-06-20 | 2017-10-03 | 上海蔚来汽车有限公司 | Rotor liquid cooling structure |
| CN107231049B (en) * | 2017-06-20 | 2023-07-07 | 上海蔚来汽车有限公司 | Liquid cooling structure of motor rotor |
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Application publication date: 20160113 |