CN203416062U - Permanent magnetic motor rotor structure - Google Patents
Permanent magnetic motor rotor structure Download PDFInfo
- Publication number
- CN203416062U CN203416062U CN201320471078.2U CN201320471078U CN203416062U CN 203416062 U CN203416062 U CN 203416062U CN 201320471078 U CN201320471078 U CN 201320471078U CN 203416062 U CN203416062 U CN 203416062U
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- CN
- China
- Prior art keywords
- rotating shaft
- dynamic balance
- rotor
- rotor core
- permanent magnetic
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a permanent magnetic motor rotor structure. The permanent magnetic motor rotor structure comprises a rotation shaft, a rotor core sleeved on the rotation shaft, a magnetic steel fixedly bonded on an outer circle surface of the rotor core and a retaining ring sleeved outside the magnetic steel, wherein two shaft ends of the retaining ring are respectively provided with annular axial extension portions, a dynamic balance adjusting space used for adjusting dynamic balance amount is formed between inner walls of the axial extension portions and shaft end faces of the rotor core, and dynamic balance mud is bonded in the dynamic balance adjusting space to realize dynamic balance counterweight of a permanent magnetic motor rotor. The permanent magnetic motor rotor structure is advantaged in that the rotor structure is simple and compact, the dynamic balance counterweight needs no additional balance ring and can be realized through only bonding the dynamic balance mud in the dynamic balance adjusting space, a process of the dynamic balance counterweight is simplified, cost of the dynamic balance counterweight is reduced, but also the dynamic balance counterweight does not cause overweight mass of the rotor, and power density of a permanent magnetic motor is reduced.
Description
Technical field
The utility model relates to a kind of magneto, especially relates to a kind of rotor structure for permanent magnet motor.
Background technology
Magneto comprises stator and is installed on the rotor in stator; rotor is generally comprised of rotating shaft, rotor core and magnet steel; rotor core is enclosed within on rotating shaft; magnet steel is pasted on the outer round surface that is fixed on rotor core by glue; for preventing that magnet steel from flying out when rotating, also conventionally in magnet steel outside, with bandage or sheath, protected again.Because rotor can relate to dynamic balancing calibration, so common employing increases the weight of mode or duplicate removal mode is carried out dynamic balancing calibration to rotor.At present, common rotor dynamic balancing calibrating mode for respectively increasing a gimbal on the end face of rotor core, gimbal is enclosed within outside rotating shaft, although this rotor dynamic balancing calibrating mode also can be realized dynamic balancing calibration well, but there is following problem: 1) need to make gimbal, and the manufacture craft of gimbal is also remarkable, and cost is high; 2) on the end face of rotor core, respectively increase a gimbal, can cause rotor quality to increase, can increase moment of inertia; 3) in gimbal assembling process, need tight fit to compress, manufacturability is poor.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of simple and compact for structure, cost is low, and dynamic balance weight rotor structure for permanent magnet motor easily.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of rotor structure for permanent magnet motor, comprise rotating shaft, be enclosed within the rotor core on described rotating shaft, stickup is fixed on the magnet steel on the outer round surface of described rotor core and is sheathed on the retaining ring outside described magnet steel, it is characterized in that the two axial ends of described retaining ring is respectively arranged with the portion that extends axially of annular, between the axle head end face of the inwall of the described portion that extends axially and described rotor core, be formed with for allocating the dynamic balancing allotment space of computing ballance correction, by pasting the dynamic balance weight that dynamic balancing mud is realized permanent magnet machine rotor in the dynamic balancing allotment space described.
Described rotating shaft is the rotating shaft with the shaft shoulder, is provided with an annular spring groove on described rotating shaft, in described annular spring groove, is provided with jump ring, between the end face of the shaft shoulder of the rotating shaft described in described rotor core is limited in and described jump ring.
Described rotating shaft is the rotating shaft without the shaft shoulder, is provided with two annular spring grooves on described rotating shaft, in the annular spring groove described in two, is provided with jump ring, and described rotor core is limited between the jump ring described in two.
compared with prior art, the utility model has the advantage of: the portion that extends axially that annular is set respectively by the two axial ends at retaining ring, lengthen the axial length of retaining ring, and between the inwall of portion and the axle head end face of rotor core, form a dynamic balancing allotment space that is exclusively used in allotment computing ballance correction extending axially, by paste dynamic balancing mud in dynamic balancing allotment space, just can realize easily the dynamic balance weight of permanent magnet machine rotor like this, this rotor structure is simply compact, dynamic balance weight is without increasing gimbal, only need in space is allocated in dynamic balancing, paste dynamic balancing mud just can, not only simplified the process of dynamic balance weight, reduced the cost of dynamic balance weight, and after dynamic balance weight, can not cause rotor quality overweight, reduced the power density of magneto.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional schematic of rotor structure for permanent magnet motor of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
A kind of rotor structure for permanent magnet motor the utility model proposes, as shown in the figure, it comprises rotating shaft 1, rotor core 2, polylith magnet steel 3 and cylindrical circular retaining ring 4, rotor core 2 is sheathed on outside rotating shaft 1, polylith magnet steel 3 is axially pasting on the outer round surface that is fixed on rotor core 2 by glue is even along rotor core 2, it is outer for preventing that magnet steel 3 from flying out when rotating that retaining ring 4 is sheathed on magnet steel 3, the two axial ends of retaining ring 4 is respectively arranged with the portion that extends axially 41 of annular, lengthen retaining ring 4, extend axially between the inwall of portion 41 and the axle head end face of rotor core 2 and be formed with for allocating the dynamic balancing allotment space 5 of computing ballance correction, by realize the dynamic balance weight of permanent magnet machine rotor at the dynamic balancing allotment interior stickup dynamic balancing in space 5 mud 6, be that dynamic balancing mud 6 is pasted between the inwall and rotor core 2 and the end face of magnet steel 3 of the portion of extending axially 41.
At this, if rotating shaft 1 is the rotating shaft (rotating shaft in Fig. 1 is the rotating shaft with the shaft shoulder) with the shaft shoulder 11, can utilize a jump ring 71 that rotor core 2 is fixed between jump ring 71 and the shaft shoulder 11, can be along an annular spring groove 72 is circumferentially set on rotating shaft 1, a jump ring 71 is set annular spring groove 72 is interior again, rotor core 2 is just limited between the end face and jump ring 71 of the shaft shoulder 11 of rotating shaft 1 like this; If rotating shaft 1 is the rotating shaft without the shaft shoulder, can be along two annular spring grooves are circumferentially set on rotating shaft 1, on rotating shaft 1 diverse location, edge circumferentially all arranges an annular spring groove, a jump ring is all set in two annular spring grooves again, and rotor core 2 is just limited between two jump rings like this.
Claims (3)
1. a rotor structure for permanent magnet motor, comprise rotating shaft, be enclosed within the rotor core on described rotating shaft, stickup is fixed on the magnet steel on the outer round surface of described rotor core and is sheathed on the retaining ring outside described magnet steel, it is characterized in that the two axial ends of described retaining ring is respectively arranged with the portion that extends axially of annular, between the axle head end face of the inwall of the described portion that extends axially and described rotor core, be formed with for allocating the dynamic balancing allotment space of computing ballance correction, by pasting the dynamic balance weight that dynamic balancing mud is realized permanent magnet machine rotor in the dynamic balancing allotment space described.
2. a kind of rotor structure for permanent magnet motor according to claim 1, it is characterized in that described rotating shaft is the rotating shaft with the shaft shoulder, on described rotating shaft, be provided with an annular spring groove, in described annular spring groove, be provided with jump ring, between the end face of the shaft shoulder of the rotating shaft described in described rotor core is limited in and described jump ring.
3. a kind of rotor structure for permanent magnet motor according to claim 1, it is characterized in that described rotating shaft is for the rotating shaft without the shaft shoulder, on described rotating shaft, be provided with two annular spring grooves, in annular spring groove described in two, be provided with jump ring, described rotor core is limited between the jump ring described in two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471078.2U CN203416062U (en) | 2013-08-02 | 2013-08-02 | Permanent magnetic motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471078.2U CN203416062U (en) | 2013-08-02 | 2013-08-02 | Permanent magnetic motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203416062U true CN203416062U (en) | 2014-01-29 |
Family
ID=49978920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471078.2U Expired - Lifetime CN203416062U (en) | 2013-08-02 | 2013-08-02 | Permanent magnetic motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203416062U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655606A (en) * | 2016-11-24 | 2017-05-10 | 兰州飞行控制有限责任公司 | Direct current brushless motor rotor structure |
| CN107863830A (en) * | 2017-12-26 | 2018-03-30 | 宁波菲仕运动控制技术有限公司 | A kind of permanent-magnetic synchronous motor rotor component and its manufacture method |
| CN108988534A (en) * | 2018-08-20 | 2018-12-11 | 中车永济电机有限公司 | A kind of high speed permanent magnet motor rotor and its processing method |
| CN109038899A (en) * | 2018-08-29 | 2018-12-18 | 惠州市三协磁电技术有限公司 | Inner-rotor brushless rotor and the inner-rotor brushless motor for using the rotor |
| CN109167470A (en) * | 2018-10-30 | 2019-01-08 | 东昌电机(深圳)有限公司 | A kind of rotor |
-
2013
- 2013-08-02 CN CN201320471078.2U patent/CN203416062U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655606A (en) * | 2016-11-24 | 2017-05-10 | 兰州飞行控制有限责任公司 | Direct current brushless motor rotor structure |
| CN107863830A (en) * | 2017-12-26 | 2018-03-30 | 宁波菲仕运动控制技术有限公司 | A kind of permanent-magnetic synchronous motor rotor component and its manufacture method |
| CN107863830B (en) * | 2017-12-26 | 2024-04-05 | 宁波菲仕运动控制技术有限公司 | Permanent magnet synchronous motor rotor assembly and manufacturing method thereof |
| CN108988534A (en) * | 2018-08-20 | 2018-12-11 | 中车永济电机有限公司 | A kind of high speed permanent magnet motor rotor and its processing method |
| CN108988534B (en) * | 2018-08-20 | 2020-06-19 | 中车永济电机有限公司 | High-speed permanent magnet motor rotor and processing method thereof |
| CN109038899A (en) * | 2018-08-29 | 2018-12-18 | 惠州市三协磁电技术有限公司 | Inner-rotor brushless rotor and the inner-rotor brushless motor for using the rotor |
| CN109167470A (en) * | 2018-10-30 | 2019-01-08 | 东昌电机(深圳)有限公司 | A kind of rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |