CN202931058U - Rotor assembly used for alternating current permanent magnet servo motor - Google Patents
Rotor assembly used for alternating current permanent magnet servo motor Download PDFInfo
- Publication number
- CN202931058U CN202931058U CN 201220610606 CN201220610606U CN202931058U CN 202931058 U CN202931058 U CN 202931058U CN 201220610606 CN201220610606 CN 201220610606 CN 201220610606 U CN201220610606 U CN 201220610606U CN 202931058 U CN202931058 U CN 202931058U
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- magnet steel
- rotor
- servo motor
- magnet
- rotor punching
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Abstract
The utility model discloses a rotor assembly used for an alternating current permanent magnet servo motor. The rotor assembly includes a rotary shaft, an iron core, and multiple magnetic steels. The iron core is formed by axially laminating multiple rotor punching sheets. The multiple rotor punching sheets are arranged on the rotary shaft and are tightly pressed relative to the rotary shaft. Multiple magnetic steel grooves are arranged on the outer surfaces of the rotor punching sheets along the peripheral direction. The lengthwise direction of the magnetic steel groove is consistent with the peripheral direction of the rotor punching sheet. The number and size of the magnetic steels match with the number and size of the magnetic steel grooves in the rotor punching sheets. The magnetic steels are inserted into corresponding magnetic steel grooves. The advantages of the rotor assembly used for the alternating current permanent magnet servo motor are that the magnetic steels are stably combined with the iron core, the magnetic steels cannot fall off, and the structure is simple.
Description
Technical field
The utility model relates to a kind of rotor assembly, especially relates to a kind of rotor assembly for alternating-current permanent-magnet servo motor.
Background technology
In the rotor assembly of alternating-current permanent-magnet servo motor, generally adopt magnet steel interpositioning and magnet steel surface-mount type structure.In magnet steel surface-mount type structure, magnet steel adopts glue to be bonded in the surface of rotor core.Because the glue cohesive force is limited, when rotor assembly rotated, magnet steel very easily came off from rotor core.At present, come off for preventing magnet steel, usually wrap with non-magnetic metallic sheath or alkali-free band on magnet steel surface.But there is following problem in above-mentioned rotor assembly: one, complicated structure causes production technology to increase difficulty; Two, for avoiding affecting the magnetic property of magnet steel, although non-magnetic metallic sheath or alkali-free band parcel can play certain fixation, can't avoid coming off of magnet steel fully, the problem that can not come off from basic solution magnet steel.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of magnet steel and can come off, and the rotor assembly that is used for alternating-current permanent-magnet servo motor simple in structure.
the utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of rotor assembly for alternating-current permanent-magnet servo motor, comprise rotating shaft, iron core and a plurality of magnet steel, described iron core axially is formed by stacking by the multi-disc rotor punching, the multi-disc rotor punching is arranged in described rotating shaft and with respect to described rotating shaft and compresses, described rotor punching is provided with a plurality of magnet steel grooves near on the circumference of its outer surface, the length direction of described magnet steel groove is consistent with the circumferencial direction of described rotor punching, the quantity of the magnet steel groove in the quantity of described magnet steel and size and described rotor punching and size coupling, described magnet steel inserts in corresponding magnet steel groove.
Gap between described magnet steel and described magnet steel groove is 0.07mm～0.15mm.
Described rotor punching along the circumferential direction is provided with a plurality of riveted holes, and a plurality of rotor punchings are riveted successively by stack of rivets.
Described iron mandrel to two ends respectively be provided with a rotor baffle plate, described iron core is fixedly connected with by holding circle with described rotor baffle plate.
Be provided with a plurality of ventilation holes on described rotor punching.
The thickness of described rotor punching is 0.2mm～1.0mm.
The material of described rotor punching is permeability magnetic material, and described magnet steel is the permanent magnet magnet steel.
Compared with prior art, the utility model has the advantage of that iron core axially is formed by stacking by the multi-disc rotor punching, rotor punching is provided with a plurality of magnet steel grooves near on the circumference of its outer surface, magnet steel inserts in corresponding magnet steel groove, magnet steel and magnet steel groove coupling, make magnet steel and iron core stable bond, magnet steel can not come off, and simple in structure;
When the gap between magnet steel and magnet steel groove is 0.07mm～0.15mm, can avoid rotor or magnet steel to cause magnet steel cracked because expanded by heating is uneven;
When a plurality of rotor punchings weld successively and rivet, strengthened the bed knife of a plurality of rotor punchings, prevent that a plurality of rotor punchings are loosening;
When iron mandrel to two ends respectively be provided with a rotor baffle plate, when iron core is fixedly connected with by holding circle with the rotor baffle plate, improved the tightness of iron core from axial direction;
When being provided with a plurality of ventilation hole on rotor punching, can reduce the moment of inertia of rotor assembly, improve the dynamic response capability of alternating-current permanent-magnet servo motor, reduce simultaneously the generation of eddy current, improve the efficient of alternating-current permanent-magnet servo motor.
Description of drawings
Fig. 1 is cutaway view of the present utility model;
Fig. 2 is the front view of rotor punching;
Fig. 3 is the structural representation of magnet steel;
Fig. 4 is the front view of rotor baffle plate;
Fig. 5 is the end view of rotor baffle plate;
Fig. 6 is the front view of holding circle.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
embodiment one: as shown in the figure, a kind of rotor assembly for alternating-current permanent-magnet servo motor, comprise rotating shaft 1, iron core 2 and a plurality of magnet steel 3, iron core 2 axially is formed by stacking by multi-disc rotor punching 21, multi-disc rotor punching 21 is arranged in rotating shaft 1 and with respect to rotating shaft 1 and compresses, rotor punching 21 is provided with a plurality of magnet steel grooves 22 near on the circumference of its outer surface, the length direction of magnet steel groove 22 is consistent with the circumferencial direction of rotor punching 21, adjacent two magnet steel grooves 22 are mutually symmetrical, the quantity of the magnet steel groove 22 in the quantity of magnet steel 3 and size and rotor punching 21 and size coupling, magnet steel 3 inserts in corresponding magnet steel groove 22, gap between magnet steel 3 and magnet steel groove 22 is 0.07mm.
In the present embodiment, rotor punching 21 along the circumferential direction is provided with a plurality of riveted holes 24, and a plurality of rotor punchings 21 are riveted successively by stack of rivets.
In the present embodiment, iron core 2 axial two ends respectively are provided with a rotor baffle plate 25, and iron core 2 is fixedly connected with by holding circle 26 with rotor baffle plate 25.
In the present embodiment, be provided with a plurality of ventilation holes 27 on rotor punching 21.
In the present embodiment, the thickness of rotor punching 21 is 1.0mm.
In the present embodiment, the material of rotor punching 21 is permeability magnetic material, and magnet steel 3 is the permanent magnet magnet steel.
embodiment two: as shown in the figure, a kind of rotor assembly for alternating-current permanent-magnet servo motor, comprise rotating shaft 1, iron core 2 and a plurality of magnet steel 3, iron core 2 axially is formed by stacking by multi-disc rotor punching 21, multi-disc rotor punching 21 is arranged in rotating shaft 1 and with respect to rotating shaft 1 and compresses, rotor punching 21 is provided with a plurality of magnet steel grooves 22 near on the circumference of its outer surface, the length direction of magnet steel groove 22 is consistent with the circumferencial direction of rotor punching 21, adjacent two magnet steel grooves 22 are mutually symmetrical, the quantity of the magnet steel groove 22 in the quantity of magnet steel 3 and size and rotor punching 21 and size coupling, magnet steel 3 inserts in corresponding magnet steel groove 22, gap between magnet steel 3 and magnet steel groove 22 is 0.15mm.
In the present embodiment, rotor punching 21 along the circumferential direction is provided with a plurality of riveted holes 24, and a plurality of rotor punchings 21 are riveted successively by stack of rivets.
In the present embodiment, iron core 2 axial two ends respectively are provided with a rotor baffle plate 25, and iron core 2 is fixedly connected with by holding circle 26 with rotor baffle plate 25
In the present embodiment, be provided with a plurality of ventilation holes 27 on rotor punching 21.
In the present embodiment, the thickness of rotor punching 21 is 1.0mm.
In the present embodiment, the material of rotor punching 21 is permeability magnetic material, and magnet steel 3 is the permanent magnet magnet steel.
Claims (7)
1. rotor assembly that is used for alternating-current permanent-magnet servo motor, comprise rotating shaft, iron core and a plurality of magnet steel, it is characterized in that described iron core axially is formed by stacking by the multi-disc rotor punching, the multi-disc rotor punching is arranged in described rotating shaft and with respect to described rotating shaft and compresses, described rotor punching is provided with a plurality of magnet steel grooves near on the circumference of its outer surface, the length direction of described magnet steel groove is consistent with the circumferencial direction of described rotor punching, the quantity of the magnet steel groove in the quantity of described magnet steel and size and described rotor punching and size coupling, described magnet steel inserts in corresponding magnet steel groove.
2. a kind of rotor assembly for alternating-current permanent-magnet servo motor according to claim 1, is characterized in that the gap between described magnet steel and described magnet steel groove is 0.07mm～0.15mm.
3. according to claim 1～2 described a kind of rotor assembly for alternating-current permanent-magnet servo motor, is characterized in that along the circumferential direction being provided with a plurality of riveted holes on described rotor punching, and a plurality of rotor punchings are riveted successively by stack of rivets.
4. a kind of rotor assembly for alternating-current permanent-magnet servo motor according to claim 3, it is characterized in that described iron mandrel to two ends respectively be provided with a rotor baffle plate, described iron core is fixedly connected with by holding circle with described rotor baffle plate
5. a kind of rotor assembly for alternating-current permanent-magnet servo motor according to claim 3, is characterized in that being provided with on described rotor punching a plurality of ventilation holes.
6. a kind of rotor assembly for alternating-current permanent-magnet servo motor according to claim 3, the thickness that it is characterized in that described rotor punching is 0.2mm～1.0mm.
7. a kind of rotor assembly for alternating-current permanent-magnet servo motor according to claim 3, the material that it is characterized in that described rotor punching is permeability magnetic material, described magnet steel is the permanent magnet magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610606 CN202931058U (en) | 2012-11-16 | 2012-11-16 | Rotor assembly used for alternating current permanent magnet servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610606 CN202931058U (en) | 2012-11-16 | 2012-11-16 | Rotor assembly used for alternating current permanent magnet servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931058U true CN202931058U (en) | 2013-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220610606 Expired - Lifetime CN202931058U (en) | 2012-11-16 | 2012-11-16 | Rotor assembly used for alternating current permanent magnet servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931058U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245045A (en) * | 2015-11-16 | 2016-01-13 | 苏州西艾杰电机有限公司 | Permanent-magnet embedded type rotor assembly |
| CN107800253A (en) * | 2017-12-07 | 2018-03-13 | 合肥珺安机电设备有限公司 | The automatic assembling device of motor |
| CN107846095A (en) * | 2017-12-26 | 2018-03-27 | 宁波菲仕运动控制技术有限公司 | The rotor assembly and its manufacture method of magnet steel are fixed based on carbon fiber bar |
-
2012
- 2012-11-16 CN CN 201220610606 patent/CN202931058U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245045A (en) * | 2015-11-16 | 2016-01-13 | 苏州西艾杰电机有限公司 | Permanent-magnet embedded type rotor assembly |
| CN107800253A (en) * | 2017-12-07 | 2018-03-13 | 合肥珺安机电设备有限公司 | The automatic assembling device of motor |
| CN107846095A (en) * | 2017-12-26 | 2018-03-27 | 宁波菲仕运动控制技术有限公司 | The rotor assembly and its manufacture method of magnet steel are fixed based on carbon fiber bar |
| CN107846095B (en) * | 2017-12-26 | 2024-04-02 | 宁波菲仕运动控制技术有限公司 | Rotor assembly based on carbon fiber rod fixed magnetic steel and manufacturing method thereof |
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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: 20130508 |