CN105391207A - Rail transit permanent-magnet direct-drive traction motor rotor and assembling method thereof - Google Patents
Rail transit permanent-magnet direct-drive traction motor rotor and assembling method thereof Download PDFInfo
- Publication number
- CN105391207A CN105391207A CN201510837699.1A CN201510837699A CN105391207A CN 105391207 A CN105391207 A CN 105391207A CN 201510837699 A CN201510837699 A CN 201510837699A CN 105391207 A CN105391207 A CN 105391207A
- Authority
- CN
- China
- Prior art keywords
- rotor
- rotor core
- punching
- core assembly
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a rail transit permanent-magnet direct-drive traction motor, including a rotating shaft and a rotor core assembly. The rotor core assembly includes a plurality of segments of rotor core combination bodies which are assembled on the rotating shaft in sequence to form an integrated structure. The invention also correspondingly discloses a rail transit permanent-magnet direct-drive traction motor rotor assembling method, a rotor core assembly is divided into a plurality of segments of rotor core combination bodies, and the rotor core combination bodies are mounted on a rotating shaft in sequence. The rail transit permanent-magnet direct-drive traction motor rotor and the assembling method thereof provided by the invention both have the advantages that assembling is easy, assembling accuracy is high, etc.
Description
Technical field
The present invention relates generally to technical field of rail traffic, refers in particular to a kind of track traffic permanent magnet direct-drive traction electric machine rotor and assembly method thereof.
Background technology
The utilization of permanent-magnet synchronizing traction motor in track traffic is more and more extensive, its designing technique is also constantly promoting and innovation, traditional trailer system by constantly replace by new traction technique, wheel shaft directly drives transmission will become the pioneer of drive system of new generation.This drive system eliminates the variable-speed gear system in transmission traction system, traditional traction drive structure is simplified greatly, make the axle system Integrated design of permanent magnet synchronous traction motor and vehicle, such permanent-magnet synchronous direct drive traction electric machine is compared with general permanent magnet synchronous traction motor, draw ratio increases 2 ~ 3 times, motor increases 2 ~ 3 times at wheel direction of principal axis, and comparing than general permanent magnet synchronous traction motor in the short transverse of vehicle also has reduction.Because the draw ratio of such motor strengthens, the stator of permanent-magnet synchronous direct drive traction motor is made compared with general permanent magnet synchronous traction motor stator rotor, to have grown 2 ~ 3 times with rotor.The rotor that current rotor draw ratio is less than or equal to the permanent magnet synchronous traction motor of 1 is made up of rotor core and rotating shaft, as shown in Figure 1, its conventional method of manufacturing technology is, rotor iron core laminated-rotor core and rotating shaft assemble-and permanent magnet and rotor core assembling-encapsulating.Because the rotor draw ratio of general permanent magnet synchronous traction motor is less than or equal to 1, when permanent magnet and rotor core assemble, every groove all can once assemble successfully.Because rotor core and rotating shaft are equipped with the larger magnitude of interference, after rotor core and rotating shaft are assembled, its integrated effect is fine, ensure that the both ends of the surface of rotor core and the axes normal of rotating shaft.When but the rotor draw ratio for permanent magnet synchronous traction motor is greater than 1, rotor magnetic steel mounting technology has just had certain difficulty, and the travel synchronization of rotor machining equipment is increased, the draw ratio of track traffic direct-drive permanent-magnet synchronous traction electric machine rotor reaches 2 ~ 3 times, and rotor magnetic steel assembling process routinely cannot meet rotor magnetic steel and once assemble successful requirement.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical problem existed for prior art, the invention provides that a kind of structure is simple, assembling is simple and the track traffic permanent magnet direct-drive traction electric machine rotor that assembly precision is high, and correspondingly provide a kind of and assemble simple and that assembly precision is high assembly method.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
A kind of track traffic permanent magnet direct-drive traction electric machine rotor, comprise rotating shaft and rotor core assembly, it is fit that described rotor core assembly comprises multipiece rotor iron core group, and multipiece rotor iron core group zoarium is assemblied in successively in described rotating shaft and forms integral structure.
Further improvement as technique scheme:
Described rotor core assembly comprises the rotor core and magnet steel that are overrided to form by multi-disc rotor punching, and described alinco assembled is in described rotor core and solidified by encapsulating.
The periphery of described rotor core is provided with many axial weld seams, each rotor punching forms integration to ensure to laminate power between each rotor punching by welding.
The rotor punching of described rotor core is provided with glue-line, and each rotor punching is gluedd joint by glue-line and forms integration to ensure to laminate power between each rotor punching.
The rotor punching of described rotor core is provided with riveting point, and between each rotor punching, mutually riveted joint forms integration to ensure to laminate power between each rotor punching.
The invention also discloses a kind of track traffic permanent magnet direct-drive traction electric machine rotor assembling method, rotor core assembly is divided into multipiece rotor iron core group fit, each rotor core assembly is installed in rotating shaft successively.
Further improvement as technique scheme:
The assembling of every section of rotor core assembly comprises the following steps:
Rotor core assembles: rotor punching is laminated rear formation rotor core;
Rotor core assembly assembles: assembling magnet steel in rotor core, and carries out glue-filling solid.
Described rotor core assembly is installed in rotating shaft and comprises the following steps:
Heating rotor core assembly is to preset temperature and keep a period of time, then by the rotating shaft elastic conjunction that vertically arranges in the axis hole of rotor core assembly;
Pressurize cooling is carried out to the assembly that rotor core assembly is assembled in rotating shaft, and ensure between adjacent rotor iron core group zoarium laminate between power with rotor punching to laminate power identical.
In rotor core assembling process, each rotor punching of described rotor core laminates and forms one by welding, riveted joint and bonding mode afterwards.
Compared with prior art, the invention has the advantages that:
1, track traffic permanent magnet direct-drive traction electric machine rotor of the present invention, short rotor is become to assemble by long rotor segment draw ratio being greater than 1, substantially reduce the difficulty of assembling between permanent magnet and rotor core assembly, the assembling segmentation of rotor core assembly and rotating shaft is carried out, reduce assembling resistance when longer rotor core assembly is once assembled in rotating shaft, long rotor shaft is assembled identical with general permanent magnet machine rotor rotating shaft assembly difficulty, greatly reduce the manufacture difficulty of permanent-magnet synchronizing traction motor rotor, also advantageously ensure the quality that rotor manufactures simultaneously, improve conforming product rate.
2, track traffic permanent magnet direct-drive traction electric machine rotor of the present invention, forms integration by welding, riveted joint or the mode of glueing joint between each rotor punching in rotor core, ensure that and laminate power between each rotor punching, improve the reliability of assembling.
3, track traffic permanent magnet direct-drive traction electric machine rotor assembling method of the present invention has advantage as above equally, and this method is simple and efficient, greatly reduces assembly difficulty, improves the precision of assembling.
Accompanying drawing explanation
Fig. 1 is rotor structure schematic diagram of the present invention.
Fig. 2 is the structural representation of rotor punching of the present invention.
Fig. 3 is the structural representation of rotor iron core of the present invention.
Fig. 4 is the sectional structure schematic diagram of rotor iron core group zoarium of the present invention.
Fig. 5 is the main TV structure schematic diagram of rotor iron core group zoarium of the present invention.
Fig. 6 is one of assembly state diagram of rotor iron core group zoarium of the present invention.
Fig. 7 is the assembly state diagram two of rotor iron core group zoarium of the present invention.
Fig. 8 is the assembly state diagram three of rotor iron core group zoarium of the present invention.
Number in the figure represents: 1, rotating shaft; 2, rotor core assembly; 21, rotor core assembly; 211, rotor core; 212, magnet steel; 213, rotor punching; 214, weld seam.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Figures 1 to 8, the track traffic permanent magnet direct-drive traction electric machine rotor of the present embodiment, comprise rotating shaft 1 and rotor core assembly 2, rotor core assembly 2 comprises multipiece rotor iron core group zoarium 21, and multipiece rotor iron core group zoarium 21 is assemblied in successively in rotating shaft 1 and forms integral structure.Track traffic permanent magnet direct-drive traction electric machine rotor of the present invention, short rotor is become to assemble by long rotor segment draw ratio being greater than 1, substantially reduce the assembly difficulty between permanent magnet and rotor core assembly 21, rotor core assembly 2 carries out with the assembling segmentation of rotating shaft 1, reduce assembling resistance when longer rotor core assembly 2 is once assembled in rotating shaft 1, long rotor shaft 1 is assembled identical with general permanent magnet machine rotor rotating shaft 1 assembly difficulty, greatly reduce the assembly difficulty of permanent-magnet synchronizing traction motor rotor, also advantageously ensure the quality that rotor manufactures simultaneously, improve conforming product rate.
As shown in Figures 2 to 5, in the present embodiment, rotor core assembly 21 comprises the rotor core 211 and magnet steel 212 that are overrided to form by multi-disc rotor punching 213, and magnet steel 212 to be assemblied in rotor core 211 and to be solidified by encapsulating.
As shown in Figure 2 and Figure 5, in the present embodiment, the periphery of rotor core 211 is provided with many axial weld seams 214, each rotor punching 213 forms integration to ensure to laminate power between each rotor punching 213 by welding.In other embodiments, be provided with glue-line between the rotor punching 213 of rotor core 211, each rotor punching 213 forms integration to ensure to laminate power between each rotor punching 213 by glueing joint.Each rotor punching 213 also can by the mode of riveted joint to ensure integration in addition.
The invention also discloses a kind of track traffic permanent magnet direct-drive traction electric machine rotor assembling method, by rotor core assembly 2 being divided into N section rotor core assembly 21, each rotor core assembly 21 is assemblied in rotating shaft 1 successively, due to rotor core assembly 2 is divided into multistage, thus significantly reduce assembly difficulty, the axiality between rotor core 211 and rotating shaft 1 can be ensured, substantially increase assembly precision.
As shown in Figures 2 to 5, in the present embodiment, the assembling of every section of rotor core assembly 21 specifically comprises the following steps:
First rotor core 211 assembles: rotor punching 213 is laminated rear formation rotor core 211, rotor punching 213 is laminated on the dummy shaft of iron core laminated mould, and fixed by the pressing plate at dummy shaft two ends, pull bar is provided with between two pressing plates, by locking pull bar, two pressing plates are adjusted to laminate power between each rotor punching 213, finally exit dummy shaft and carry out pressurize;
Rotor core assembly 21 assembles: be assembled to by magnet steel 212 in rotor core 211, and in magnet steel groove encapsulating, be cured under leaving standstill normal temperature, so far a rotor core assembly 21 has assembled, and other rotor core assembly 21 assembles by above method.
As shown in Figure 6 to 8, in the present embodiment, the process that rotor core assembly 21 is installed in rotating shaft 1 is as follows:
Rotor core assembly 21 is put into baking oven and is heated to preset temperature, and be incubated a period of time, make it be heated evenly, ensure the magnitude of interference when thermal expansion amount of rotor core assembly 21 is greater than or equal to it and rotating shaft 1 is assembled, then rotor core assembly 21 is bearing on sleeve arm, vertically to sling rotating shaft 1, ensure the axis of rotating shaft 1 and the dead in line of rotor core assembly 21, then rotating shaft 1 is vertically fallen also through the axis hole of rotor core assembly 21, until need the axial location table top of assembling; If wherein rotor core 211 heating-up temperature is less than preset temperature value (200 DEG C), the thermal expansion amount of the axis hole of rotor core assembly 21 is less than the magnitude of interference that itself and rotating shaft 1 are assembled, need when then assembling between rotating shaft 1 and rotor core assembly 21 to press rotating shaft 1 to enter in the axis hole of rotor core assembly 21 with forcing press, and must ensure the power that laminates between each adjacent rotor core assembly 2 with between each rotor punching 213 to laminate power identical; Then carry out pressurize cooling, pressurize cooling can adopt forcing press pressurize cooling method or utilize laminating die to carry out pressurize cooling, then carries out the assembling of next rotor core assembly 21, until last has assembled.
In the present embodiment, formed integrally by welding, riveted joint and bonding mode after each rotor punching 213 of rotor core 211 laminates, to ensure to laminate power between each rotor punching 213.The mode of each integration is specific as follows:
Welding manner: as shown in Figure 2 and Figure 5, rotor core assembly 21 laminates on rotor iron core laminated mould 3, under the state of pressurize, owing to being uniformly distributed many axial weld seams 214 in the cylindrical or endoporus of rotor punching 213, therefore weld at weld seam 214 place, and then exit laminating die 3, the welding of weld seam 214 maintains the pressure between rotor punching 213;
Riveting method: when rotor punching 213 manufactures, every sheet carries riveting point (not shown), rotor punching 213 laminates rear pressurize automatic riveting, and after exiting laminating die 3 tool, the riveting point between rotor punching 213 can keep certain and laminate power;
Bonding way: rotor punching 213 carries glued membrane (not shown), rotor punching 213 laminates rear pressurize and is heating and curing, cool to room temperature backed off after random mould, and rotor punching 213 pole sheet pressure relies on glue-line bonding.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (9)
1. a track traffic permanent magnet direct-drive traction electric machine rotor, comprise rotating shaft (1) and rotor core assembly (2), it is characterized in that, described rotor core assembly (2) comprises multipiece rotor iron core group zoarium (21), and multipiece rotor iron core group zoarium (21) is assemblied in successively in described rotating shaft (1) and forms integral structure.
2. track traffic permanent magnet direct-drive traction electric machine rotor according to claim 1, it is characterized in that, described rotor core assembly (21) comprises the rotor core (211) and magnet steel (212) that are overrided to form by multi-disc rotor punching (213), and described magnet steel (212) to be assemblied in described rotor core (211) and to be solidified by encapsulating.
3. track traffic permanent magnet direct-drive traction electric machine rotor according to claim 2, it is characterized in that, the periphery of described rotor core (211) is provided with many axial weld seams (214), each rotor punching (213) forms integration to ensure to laminate power between each rotor punching (213) by welding.
4. track traffic permanent magnet direct-drive traction electric machine rotor according to claim 2, it is characterized in that, the rotor punching (213) of described rotor core (211) is provided with glue-line, and each rotor punching (213) is gluedd joint by glue-line and forms integration to ensure to laminate power between each rotor punching (213).
5. track traffic permanent magnet direct-drive traction electric machine rotor according to claim 2, it is characterized in that, the rotor punching (213) of described rotor core (211) is provided with riveting point, and between each rotor punching (213), mutually riveted joint forms integration to ensure to laminate power between each rotor punching (213).
6. a track traffic permanent magnet direct-drive traction electric machine rotor assembling method, is characterized in that, rotor core assembly (2) is divided into multipiece rotor iron core group zoarium (21), and each rotor core assembly (21) is installed in rotating shaft (1) successively.
7. track traffic permanent magnet direct-drive traction electric machine rotor assembling method according to claim 6, it is characterized in that, the assembling of every section of rotor core assembly (21) comprises the following steps:
Rotor core (211) assembles: rotor punching (213) is laminated rear formation rotor core (211);
Rotor core assembly (21) assembles: assembling magnet steel (212) in rotor core (211), and carries out glue-filling solid.
8. track traffic permanent magnet direct-drive traction electric machine rotor assembling method according to claim 7, is characterized in that, described rotor core assembly (21) is installed in rotating shaft (1) and comprises the following steps:
Heating rotor core assembly (21) keeps a period of time to preset temperature, then by rotating shaft (1) elastic conjunction that vertically arranges in the axis hole of rotor core assembly (21);
Pressurize cooling is carried out to the assembly that rotor core assembly (21) is assembled in rotating shaft (1), and ensure the power that laminates between adjacent rotor iron core group zoarium (21) with between rotor punching (213) to laminate power identical.
9. the track traffic permanent magnet direct-drive traction electric machine rotor assembling method according to claim 7 or 8, it is characterized in that, in rotor core (211) assembling process, each rotor punching (213) of described rotor core (211) laminates and forms one by welding, riveted joint and bonding mode afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837699.1A CN105391207A (en) | 2015-11-26 | 2015-11-26 | Rail transit permanent-magnet direct-drive traction motor rotor and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837699.1A CN105391207A (en) | 2015-11-26 | 2015-11-26 | Rail transit permanent-magnet direct-drive traction motor rotor and assembling method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105391207A true CN105391207A (en) | 2016-03-09 |
Family
ID=55423153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510837699.1A Pending CN105391207A (en) | 2015-11-26 | 2015-11-26 | Rail transit permanent-magnet direct-drive traction motor rotor and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105391207A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914969A (en) * | 2016-06-24 | 2016-08-31 | 无锡新大力电机有限公司 | Method of processing rotor iron core of permanent magnet synchronous motor |
| CN106451851A (en) * | 2016-10-31 | 2017-02-22 | 上海电机学院 | Permanent magnet synchronous motor hybrid excitation structure |
| CN108183566A (en) * | 2017-12-19 | 2018-06-19 | 宁波安信数控技术有限公司 | A kind of low inertia rotor of magneto |
| CN108551217A (en) * | 2018-06-20 | 2018-09-18 | 广东美芝制冷设备有限公司 | Rotor and motor, compressor |
| CN109428452A (en) * | 2017-08-31 | 2019-03-05 | 中车株洲电力机车研究所有限公司 | Segment core and iron core made of the production method and use this method of segment core |
| CN113783328A (en) * | 2021-08-27 | 2021-12-10 | 江麓机电集团有限公司 | High-performance rotor based on electric transmission system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779726A (en) * | 2015-05-06 | 2015-07-15 | 南车株洲电力机车研究所有限公司 | Permanent magnet motor and rotor thereof |
| CN204517525U (en) * | 2015-04-09 | 2015-07-29 | 北京杰诺瑞特机电科技有限公司 | A kind of rotor core and stator core, rotor and stator structure, double feedback electric engine |
| CN204597667U (en) * | 2015-05-28 | 2015-08-26 | 湘电莱特电气有限公司 | A kind of magneto rotor and comprise the motor of this rotor |
| CN104935124A (en) * | 2015-06-25 | 2015-09-23 | 上海市雷智电机有限公司 | Implementation method for segmented inclined rotor of servo motor |
-
2015
- 2015-11-26 CN CN201510837699.1A patent/CN105391207A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204517525U (en) * | 2015-04-09 | 2015-07-29 | 北京杰诺瑞特机电科技有限公司 | A kind of rotor core and stator core, rotor and stator structure, double feedback electric engine |
| CN104779726A (en) * | 2015-05-06 | 2015-07-15 | 南车株洲电力机车研究所有限公司 | Permanent magnet motor and rotor thereof |
| CN204597667U (en) * | 2015-05-28 | 2015-08-26 | 湘电莱特电气有限公司 | A kind of magneto rotor and comprise the motor of this rotor |
| CN104935124A (en) * | 2015-06-25 | 2015-09-23 | 上海市雷智电机有限公司 | Implementation method for segmented inclined rotor of servo motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914969A (en) * | 2016-06-24 | 2016-08-31 | 无锡新大力电机有限公司 | Method of processing rotor iron core of permanent magnet synchronous motor |
| CN106451851A (en) * | 2016-10-31 | 2017-02-22 | 上海电机学院 | Permanent magnet synchronous motor hybrid excitation structure |
| CN109428452A (en) * | 2017-08-31 | 2019-03-05 | 中车株洲电力机车研究所有限公司 | Segment core and iron core made of the production method and use this method of segment core |
| CN108183566A (en) * | 2017-12-19 | 2018-06-19 | 宁波安信数控技术有限公司 | A kind of low inertia rotor of magneto |
| CN108551217A (en) * | 2018-06-20 | 2018-09-18 | 广东美芝制冷设备有限公司 | Rotor and motor, compressor |
| CN113783328A (en) * | 2021-08-27 | 2021-12-10 | 江麓机电集团有限公司 | High-performance rotor based on electric transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105391207A (en) | Rail transit permanent-magnet direct-drive traction motor rotor and assembling method thereof | |
| CN204012963U (en) | High-power density external rotor DC brushless motor | |
| CN212627617U (en) | Axial magnetic field hub motor | |
| CN102611255A (en) | Permanent-magnet motor assembly machine | |
| CN104426269A (en) | Motor with shaft | |
| WO2020016320A3 (en) | Rotor for an electric motor, method for the production thereof, and electric motor | |
| CN207234634U (en) | A kind of dual-rotor structure permanent magnet synchronous motor | |
| CN109378914A (en) | Rotor core, external rotor electric machine, driving motor for electric automobile and production method | |
| CN202231516U (en) | Segmented magnetic pole iron core | |
| CN103762793A (en) | Production method of radial permanent-magnet rotor of drive motor of power-driven transport van | |
| EP3046224B1 (en) | Method of manufacturing the rotor assembly for an electric motor | |
| CN203193407U (en) | Wind power generator assembly-type rotor stator device | |
| CN206250866U (en) | Rotor and motor | |
| CN108011471B (en) | Direct-drive type double-hub motor system | |
| CN204696821U (en) | The rotor that a kind of composite type is installed | |
| CN105024503B (en) | Hybrid excitation generator pawl pole hot forging cold-extruded manufacturing process | |
| CN104786728A (en) | Electric vehicle wheel hub structure | |
| CN203691138U (en) | Deceleration direct-driven integrated motor based on vehicle wheel hub | |
| CN111463926A (en) | Novel reduce motor tooth's socket torque structure | |
| CN111270170A (en) | Manufacturing process of carbon fiber motor | |
| CN203708072U (en) | Linear motor mover | |
| CN101860113B (en) | Electric generator | |
| CN105397017B (en) | A kind of handware crude green body roll forging forming machine | |
| CN104901453A (en) | Hub-type permanent magnetic brushless motor with built-in controller | |
| CN205051535U (en) | Motor cast aluminium rotor and quick -witted self -heating mechanism of rotor shaft interference fit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160309 |
|
| RJ01 | Rejection of invention patent application after publication |