CN203261154U - Rotor structure of superspeed PMSM - Google Patents
Rotor structure of superspeed PMSM Download PDFInfo
- Publication number
- CN203261154U CN203261154U CN 201320248928 CN201320248928U CN203261154U CN 203261154 U CN203261154 U CN 203261154U CN 201320248928 CN201320248928 CN 201320248928 CN 201320248928 U CN201320248928 U CN 201320248928U CN 203261154 U CN203261154 U CN 203261154U
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- permanent magnet
- balancing
- rotor
- rotor structure
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- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a rotor structure of a superspeed PMSM; the rotor structure comprises a rotation shaft and a rotor yoke arranged on the rotation shaft; the rotor yoke is provided with a plurality of permanent magnets arranged in a circumferential of the rotor yoke; the rotor structure is characterized by also comprising a round-shaped dynamic balancing disc extending from the rotation shaft in a radial direction; at least one side surface of the dynamic balancing disc is provided with an annular balancing groove in a recessed manner and used for mounting a balancing block; the balancing groove comprises at least two flaring portions and arc-shaped closing segments connected between the flaring portions; the whole body of the balancing groove is rotatably and symmetrically arranged around an axis of the rotation shaft; a section shape of the closing segment is in an inner closing shape; and a minimum width of a section of the flaring portion is bigger than or equal to a maximum width of the section of the closing segment. The advantages are that two end faces of the rotor yoke are respectively added by the balancing grooves for mounting the balancing blocks; and the rotation shaft is simultaneously hot-sleeved by a balancing disc for mounting the balancing block, thereby realizing dynamic balancing control of the superspeed PMSM.
Description
Technical field
The utility model relates to technical field of motors, relates in particular to a kind of rotor structure of ultrahigh speed permanent magnet synchronous motor.
Background technology
In ideal conditions, during rotor when not rotating, the pressure that bearing is produced is the same, but the error that produces in fact inhomogeneous owing to the material of rotor or blank defective, processing and the assembling, even when design just has the many factors such as asymmetrical geometry, so that rotor when rotated, the centrifugal intertia force that each small particle produces on it can not be cancelled out each other, centrifugal intertia force is applied on machinery and the basis thereof by bearing, cause vibration, produced noise, accelerate bearing wear, shorten mechanical endurance, can damage incidents when serious.For this reason, must make its balance accuracy grade that reaches permission to balancing rotor, or make so the mechanical oscillation amplitude that produces is fallen in allowed limits.For the permanent magnet synchronous motor (rotating speed is at 6500r/min and above) of ultrahigh rotating speed, this unbalance mass, can be exaggerated under ultrahigh speed is rotated, and owing to any balance weight that exposes can not be arranged during high speed operation of motor, therefore very high for the dynamic balancing commissioning requirements.
The utility model content
The purpose of the utility model embodiment is for the structural shortcoming of prior art, a kind of rotor structure of ultrahigh speed permanent magnet synchronous motor is proposed, by respectively having added a ring in the rotor yoke both ends of the surface for the compensating groove that balance weight is installed, balancing frame that is used for the dress balance weight of hot jacket on rotation axis has been realized the dynamic balancing control of ultrahigh speed permanent magnet synchronous motor thus simultaneously.
In order to reach above-mentioned utility model purpose, the rotor structure of a kind of ultrahigh speed permanent magnet synchronous motor that the utility model embodiment proposes is achieved through the following technical solutions:
A kind of rotor structure of ultrahigh speed permanent magnet synchronous motor, comprise rotation axis and be located at rotor yoke on the rotation axis, described rotor yoke has a plurality of along its permanent magnet that circumferentially distributes, it is characterized in that: also comprise the discoid dynamic balancing dish that radially extends from described rotation axis, at least one side surface depression of described dynamic balancing dish is provided with for the circular compensating groove that balance weight is installed, described compensating groove is made of at least two expansion mouths and the circular-arc closing in section that is connected between each expansion mouth, and on the whole around described rotation axis axis Rotational Symmetry; The described section configuration that closes up section is interior closing in shape, and the minimum widith on the described expansion mouth section is not less than the Breadth Maximum on the described section section that closes up.
Also be provided with described compensating groove at least one end face of described rotor yoke.
On two end faces of described rotor yoke described compensating groove is set all.
The quantity of described expansion mouth is two, and is symmetrical in the setting of described rotation axis axis.
The described section configuration that closes up section is trapezoidal shape, and its bottom land is perpendicular to described rotation axis axis, and the spacing between its two cell wall is outwards dwindled gradually by bottom land.
Described flared section is the oblong-shaped that width is not less than described bottom land width.
Described compensating groove only is arranged on the lateral surface of described dynamic balancing dish.
Compared with prior art, the beneficial effects of the utility model are: by respectively having added a ring in the rotor yoke both ends of the surface for the compensating groove that balance weight is installed, balancing frame that is used for the dress balance weight of hot jacket on rotation axis has been realized the dynamic balancing control of ultrahigh speed permanent magnet synchronous motor thus simultaneously.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and understand easily.
Fig. 1 is the overall structure schematic diagram of the utility model embodiment motor rotor;
Fig. 2 is the motor overall structure schematic diagram with the rotor in the utility model;
Fig. 3 is the side schematic view of the utility model dynamic balancing dish;
Fig. 4 is the generalized section of the utility model dynamic balancing dish.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, so that technical staff's of the same trade understanding:
Shown in Fig. 1-4, label represents respectively:
Shown in Fig. 2-4, a kind of rotor structure of ultrahigh speed permanent magnet synchronous motor is provided in the present embodiment, this rotor comprises the rotation axis 2 with rotation, and is located at the rotor yoke 3 on the rotation axis 2, and described rotor yoke 3 has a plurality of along its permanent magnet that circumferentially distributes.In addition, rotor also comprises aerofoil fan 4 and the dynamic balancing dish 8 that is fixed on the rotation axis 2, and the both sides of aerofoil fan 4 and dynamic balancing dish 8 apportion rotor yokes 3.
Wherein, dynamic balancing dish 8 be along rotation axis 2 radially extend discoid, the outer surface of described dynamic balancing dish 8 opposite side of relative rotor yoke 3 (be surface) depression is provided with for the circular compensating groove 10 that balance weight is installed.Can be referring to shown in Figure 3, described compensating groove 10 is made of at least two expansion mouths 14 and the circular-arc closing in section 15 that is connected between each expansion mouth 14, and compensating groove 10 is on the whole around described rotation axis 2 axis Rotational Symmetries.The described section configuration that closes up section 15 is interior closing in shape, and the minimum widith on described expansion mouth 14 sections is not less than the Breadth Maximum on described section 15 sections that close up.By such structure, dynamic balance weight with section 15 form fit that close up, its root and section 15 form fit that close up, namely its Breadth Maximum is no more than the minimum widith on expansion mouth 14 sections, can pack into by flared section 14 and close up in the section 15, and be fastened on the section 15 that closes up the thus balance control that realizes of dynamic balancing dish 8 by securing member.
And in the said structure, although the assembling that a flared section 14 also can be finished balance weight only is set, can bring like this asymmetric of dynamic balancing dish 8, so the quantity of flared section 14 should be two or more, and around described rotation axis 2 axis Rotational Symmetries.In a preferred embodiment, the quantity of expansion mouth 14 is two, and is symmetrical in described rotation axis 2 axis settings.
In a preferred embodiment, the described section configuration that closes up section 15 is trapezoidal shape, and its bottom land is perpendicular to described rotation axis 2 axis, and the spacing between its two cell wall is outwards dwindled gradually by bottom land.And flared section 14 is the oblong-shaped that width is not less than described bottom land width.And compensating groove 10 only is arranged on the lateral surface of described dynamic balancing dish 8.
In addition, the centrifugal intertia force for better balance motor rotor also is provided with described compensating groove 10 at least one end face of rotor yoke 3.This structure is identical with the structure of dynamic balancing dish 8, so do not repeat them here.In a preferred embodiment, on two of rotor yoke 3 end faces described compensating groove 10 is set all.
More than be elaborated for invention intention of the present utility model and execution mode by embodiment; but the utility model one of ordinary skill in the art be appreciated that; the above embodiment of the utility model only is one of preferred embodiment of the present utility model; be the length restriction; here can not all execution modes of particularize; any enforcement that can embody the utility model claim technical scheme is all in protection range of the present utility model.
It should be noted that; above content is in conjunction with concrete execution mode further detailed description of the utility model; can not assert that embodiment of the present utility model only limits to this; under the guidance of above-described embodiment; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in the protection range of the present utility model.
Claims (7)
1. the rotor structure of a ultrahigh speed permanent magnet synchronous motor, comprise rotation axis and be located at rotor yoke on the rotation axis, described rotor yoke has a plurality of along its permanent magnet that circumferentially distributes, it is characterized in that: also comprise the discoid dynamic balancing dish that radially extends from described rotation axis, at least one side surface depression of described dynamic balancing dish is provided with for the circular compensating groove that balance weight is installed, described compensating groove is made of at least two expansion mouths and the circular-arc closing in section that is connected between each expansion mouth, and on the whole around described rotation axis axis Rotational Symmetry; The described section configuration that closes up section is interior closing in shape, and the minimum widith on the described expansion mouth section is not less than the Breadth Maximum on the described section section that closes up.
2. the rotor structure of a kind of ultrahigh speed permanent magnet synchronous motor according to claim 1 is characterized in that: also be provided with described compensating groove at least one end face of described rotor yoke.
3. the rotor structure of a kind of ultrahigh speed permanent magnet synchronous motor according to claim 2 is characterized in that: on two end faces of described rotor yoke described compensating groove is set all.
4. the rotor structure of a kind of ultrahigh speed permanent magnet synchronous motor according to claim 3, it is characterized in that: the quantity of described expansion mouth is two, and is symmetrical in the setting of described rotation axis axis.
5. the rotor structure of the described a kind of ultrahigh speed permanent magnet synchronous motor of any one according to claim 1-4, it is characterized in that: the described section configuration that closes up section is trapezoidal shape, its bottom land is perpendicular to described rotation axis axis, and the spacing between its two cell wall is outwards dwindled gradually by bottom land.
6. the rotor structure of a kind of ultrahigh speed permanent magnet synchronous motor according to claim 5, it is characterized in that: described flared section is the oblong-shaped that width is not less than described bottom land width.
7. the rotor structure of a kind of ultrahigh speed permanent magnet synchronous motor according to claim 6, it is characterized in that: described compensating groove only is arranged on the lateral surface of described dynamic balancing dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320248928 CN203261154U (en) | 2013-05-09 | 2013-05-09 | Rotor structure of superspeed PMSM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320248928 CN203261154U (en) | 2013-05-09 | 2013-05-09 | Rotor structure of superspeed PMSM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261154U true CN203261154U (en) | 2013-10-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320248928 Expired - Lifetime CN203261154U (en) | 2013-05-09 | 2013-05-09 | Rotor structure of superspeed PMSM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261154U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767330A (en) * | 2015-04-24 | 2015-07-08 | 永济新时速电机电器有限责任公司 | Double-stator variable frequency speed regulation asynchronous motor |
| CN105914944A (en) * | 2016-07-02 | 2016-08-31 | 浙江和超电机有限公司 | Low-rotating speed and high-torque motor suitable for noodle press |
| CN107910981A (en) * | 2017-12-18 | 2018-04-13 | 湖南湘电动力有限公司 | A kind of generator rotor structure and generator |
| CN110718988A (en) * | 2018-07-13 | 2020-01-21 | 美蓓亚三美株式会社 | Electric motor |
| CN113489232A (en) * | 2021-07-29 | 2021-10-08 | 中国科学院工程热物理研究所 | Flywheel structure and flywheel energy storage system |
-
2013
- 2013-05-09 CN CN 201320248928 patent/CN203261154U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767330A (en) * | 2015-04-24 | 2015-07-08 | 永济新时速电机电器有限责任公司 | Double-stator variable frequency speed regulation asynchronous motor |
| CN105914944A (en) * | 2016-07-02 | 2016-08-31 | 浙江和超电机有限公司 | Low-rotating speed and high-torque motor suitable for noodle press |
| CN105914944B (en) * | 2016-07-02 | 2018-09-04 | 浙江和超电机有限公司 | A kind of low rotation speed large torque motor suitable for noodle press |
| CN107910981A (en) * | 2017-12-18 | 2018-04-13 | 湖南湘电动力有限公司 | A kind of generator rotor structure and generator |
| CN110718988A (en) * | 2018-07-13 | 2020-01-21 | 美蓓亚三美株式会社 | Electric motor |
| US12046961B2 (en) | 2018-07-13 | 2024-07-23 | Minebea Mitsumi Inc. | Motor |
| CN113489232A (en) * | 2021-07-29 | 2021-10-08 | 中国科学院工程热物理研究所 | Flywheel structure and flywheel energy storage system |
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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 |
Granted publication date: 20131030 |
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| CX01 | Expiry of patent term |