CN202260713U - Built-in rotor structure of permanent-magnet motor - Google Patents
Built-in rotor structure of permanent-magnet motor Download PDFInfo
- Publication number
- CN202260713U CN202260713U CN2011202816923U CN201120281692U CN202260713U CN 202260713 U CN202260713 U CN 202260713U CN 2011202816923 U CN2011202816923 U CN 2011202816923U CN 201120281692 U CN201120281692 U CN 201120281692U CN 202260713 U CN202260713 U CN 202260713U
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- Prior art keywords
- permanent magnet
- rotor
- rotor structure
- baffle plate
- trim ring
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Abstract
The utility model discloses a built-in rotor structure of permanent-magnet motor, which is suitable for the built-in rotor of the permanent-magnet motor with higher demand on transmission. The built-in rotor structure comprises a rotating shaft, a front pressing ring, a pressing plate, baffles, a permanent magnet, a rotor punching and a rear pressing ring, wherein the rear pressing ring, the rotor punching and the pressing plate are laminated on the rotating shaft; the front pressing ring is sleeved on the rotating shaft; the permanent magnet is mounted on the outer side of the rotor punching; the baffles are arranged on two sides of both the permanent magnet and the rotor punching; and cushion blocks are arranged between the protective baffles and the permanent magnet. The built-in rotor structure of the permanent-magnet motor not only ensures higher lamination coefficient but also satisfies the requirement for embedding manufacturability of the permanent magnet, and effectively protects the permanent magnet.
Description
Technical field
The utility model relates to a kind of rotor structure of motor, especially relates to a kind of interior permanent magnet machines rotor structure that is suitable for higher transmission requirement.
Background technology
Rotor core adopts the big magnitude of interference to satisfy higher transmission requirement with cooperating of rotating shaft usually; Simultaneously, the stacking factor of iron core directly influences motor properties, and lower stacking factor can make the motor iron loss increase, and temperature rise raises, and efficient reduces, and noise increases.Therefore the rotor core sleeve need adopt suitable process, has both guaranteed higher stacking factor, satisfies the rotor core sleeve requirement that the big magnitude of interference cooperates again.
Have that the rotor iron core laminated and sleeve of motor of higher transmission requirement is fixing to have two kinds usually, a kind of is to cold pressing, and punching directly is stacked in the rotating shaft, after compressing through hydraulic press, under packing state, iron core is fixed in the rotating shaft; A kind of is hot jacket, and punching laminates on dummy shaft and fixes, fixing again after hot jacket puts in place in the rotating shaft.
For the interior permanent magnet machines rotor; Permanent magnet is embedded in the magnet steel groove of rotor core; Can not to bear big stress low with heatproof point because permanent magnet material itself has, and the method that above-mentioned two kinds of iron cores laminate with sleeve all might cause permanent magnet damage, loss of excitation; Simultaneously; Permanent magnet might damage in the setting-in process; For convenient the permanent magnet that damages is withdrawed from, guarantee that preferably the permanent magnet setting-in is accomplished before, does not block at magnet steel groove two ends; And in motor operation course for preventing that permanent magnet from suffering erosion, magnet steel groove both ends of the surface need use the baffle plate of non-magnet material that permanent magnet is hidden fully.
At present, some motor has adopted a kind of rotor structure of rod-pulling type to solve the problems referred to above, and punching is laminated in the rotating shaft, embeds permanent magnet after the release, strains with stay bolt at last.Before adopting this kind method permanent magnet setting-in to accomplish, magnet steel groove both ends of the surface are not all blocked, and better manufacturability is arranged, and utilize bolt to strain to guarantee stacking factor.But adopt this method, the reaction force of the pole sheet pressure when iron core laminates after the release all acts on the position of fixing through screw rod on the iron core, and contact area is very little; The punching discontinuity becomes the distortion of shirt rim shape easily, can not prevent effectively that tooth from opening; And during high-speed cruising; Screw rod will bear bigger tangential force, exist potential safety hazard, therefore still can not satisfy high performance design of electrical motor requirement.
The utility model content
The purpose of the utility model provides a kind of interior permanent magnet machines rotor structure, and this structure is a kind ofly can guarantee higher stacking factor, can satisfy the requirement of permanent magnet inserted process property again, can also effectively protect the interior permanent magnet machines rotor structure of permanent magnet.
The utility model specifically provides a kind of technic relization scheme of interior permanent magnet machines rotor structure, and a kind of interior permanent magnet machines rotor structure comprises: rotating shaft, preceding trim ring; Pressing plate, baffle plate, cushion block, permanent magnet; Rotor punching, back trim ring, back trim ring, rotor punching, pressing plate are laminated in the rotating shaft, and preceding trim ring is enclosed within the rotating shaft; Permanent magnet is installed in the outside of rotor punching, and the both sides of permanent magnet and rotor punching are provided with baffle plate, is provided with cushion block between baffle plate and the permanent magnet.
As the further improvement of a kind of interior permanent magnet machines rotor structure of the utility model technical scheme, rotor punching and pressing plate are provided with through hole, and through hole is used for fixing permanent magnet setting-in frock.
As the further improvement of a kind of interior permanent magnet machines rotor structure of the utility model technical scheme, the interior permanent magnet machines rotor structure comprises and axially fastens part and retainer, through axially fastening part and retainer fixed dam.
As the further improvement of a kind of interior permanent magnet machines rotor structure of the utility model technical scheme, through axially fastening part and retainer is fixed on baffle plate on the rotor punching.
Further improvement as a kind of interior permanent magnet machines rotor structure of the utility model technical scheme has compensating groove on baffle plate, the dynamic balancing of in compensating groove, proofreading and correct rotor through balance weight and screw.
Further improvement as a kind of interior permanent magnet machines rotor structure of the utility model technical scheme is provided with rotation preventing device between preceding trim ring and baffle plate.
As the further improvement of a kind of interior permanent magnet machines rotor structure of the utility model technical scheme, between back trim ring and baffle plate, be provided with rotation preventing device.
Through implementing the technical scheme of a kind of interior permanent magnet machines rotor structure of above-mentioned the utility model; Having solved interior permanent magnet machines guarantees that higher stacking factor need adopt and colds pressing or the process of hot jacket and permanent magnet material can not bear the contradiction between the low characteristics of big stress and heatproof point; And the magnet steel groove needs the penetrating contradiction between the complete canopy-protected of permanent magnet need during with the motor operation in two ends during the permanent magnet setting-in; Provide a kind of and can guarantee that higher stacking factor can not damage permanent magnet again; Can satisfy the inserted process requirement of permanent magnet, again can be to the interior permanent magnet machines rotor structure of the effective protection of permanent magnet.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of embodiment of the utility model interior permanent magnet machines rotor structure;
Wherein: the 1-rotating shaft, trim ring before the 2-, 3-axially fastens part, 4-retainer, 5-rotation preventing device, 6-pressing plate, 7-balance weight and screw, 8-baffle plate, 9-cushion block, 10-permanent magnet, 11-rotor punching, trim ring behind the 12-.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Shown in accompanying drawing 1, provided the specific embodiment of a kind of interior permanent magnet machines rotor structure of the utility model, below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
A kind of embodiment of interior permanent magnet machines rotor structure comprises: rotating shaft 1, preceding trim ring 2, pressing plate 6; Baffle plate 8, cushion block 9, permanent magnet 10, rotor punching 11; Back trim ring 12, back trim ring 12, rotor punching 11, pressing plate 6 are laminated in the rotating shaft 1, and preceding trim ring 2 is enclosed within the rotating shaft 1; Permanent magnet 10 is installed in the outside of rotor punching 11, and the both sides of permanent magnet 10 and rotor punching 11 are provided with baffle plate 8, are provided with cushion block 9 between protective baffle plate 8 and the permanent magnet 10.On rotor punching 11 and pressing plate 6, further be provided with through hole, through hole is used for fixing permanent magnet 10 setting-in frocks.The interior permanent magnet machines rotor structure further comprises and axially fastens part 3 and retainer 4, through axially fastening part 3 and retainer 4 fixed dams 8, and further baffle plate 8 is fixed on the rotor punching 11 with retainer 4 through axially fastening part 3.On baffle plate 8, have compensating groove, the dynamic balancing of in compensating groove, proofreading and correct rotor through balance weight and screw 7.Between preceding trim ring 2 and baffle plate 8, further be provided with rotation preventing device 5.Between back trim ring 12 and baffle plate 8, also be provided with rotation preventing device 5.
Shown in accompanying drawing 1, when mounted back trim ring 12, rotor punching 11, pressing plate 6 are laminated in the rotating shaft 1, select suitable pole sheet pressure, under the state of pressurize, preceding trim ring 2 hot jackets are put in place, guarantee that rotor core has higher stacking factor.Utilize the through hole (or ventilation hole) on rotor punching 11, the pressing plate 6 permanent magnet setting-in frock to be fixed after the release, guarantee permanent magnet 10 smooth setting-ins with the technology screw rod.Permanent magnet 10 setting-ins unload frock after accomplishing, and load onto cushion block 9, with the technology screw rod baffle plate 8 tensions are put in place, again with axially fastening part 3 and retainer 4 with baffle plate 8 secure fixation.The dynamic balancing of whole rotor can be passed through balance weight and screw 7, proofreaies and correct in the compensating groove on baffle plate 8, and prevents under rotor is hot through rotation preventing device 5, and baffle plate 8 is owing to the skew that thermal expansion produces circumferencial direction causes balance to lose efficacy.
The described interior permanent magnet machines rotor structure of above-mentioned embodiment has following characteristics:
1, there is the pressing plate of high-strength material at the rotor core two ends, can prevent effectively that tooth from opening, the groove that has the hole (also can utilize ventilation hole) that makes things convenient for fixed permanent magnet setting-in frock and permanent magnetism physical efficiency to pass through smoothly in pressing plate, the punching;
2, iron core is under packing state, and available trim ring hot jacket puts in place and guarantees higher stacking factor, can guarantee the fixing setting-in that does not influence permanent magnet reliably simultaneously again of rotor core;
3, after the release, the band frock embeds permanent magnet, and baffle plate can install and fix on rotor and permanent magnet is hidden after the permanent magnet setting-in accomplished, and can satisfy the manufacturability requirement of setting-in and the secure fixation and the requirement of shelter of permanent magnet;
4, after the permanent magnet setting-in is accomplished, unload frock, protective baffle plate is in place, and fixes with axially fastening part, retainer is locking, and the technology through hole is also arranged on the baffle plate;
5, have compensating groove on the protective baffle plate, can satisfy the rotor dynamic balancing requirement.
The above only is the preferred embodiment of the utility model, is not the utility model is done any pro forma restriction.Though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model.Any those of ordinary skill in the art; Do not breaking away under the utility model technical scheme scope situation; All the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to the utility model technical scheme, or are revised as the equivalent embodiment of equivalent variations.Therefore; Every content that does not break away from the utility model technical scheme; According to the technical spirit of the utility model to any simple modification that above embodiment did, be equal to replacement, equivalence changes and modify, all still belong in the scope of the utility model technical scheme protection.
Claims (7)
1. an interior permanent magnet machines rotor structure is characterized in that: comprise rotating shaft (1), preceding trim ring (2); Pressing plate (6), baffle plate (8), cushion block (9); Permanent magnet (10), rotor punching (11), back trim ring (12); Back trim ring (12), rotor punching (11), pressing plate (6) are laminated in the rotating shaft (1), and preceding trim ring (2) is enclosed within the rotating shaft (1), and permanent magnet (10) is installed in the outside of rotor punching (11); The both sides of permanent magnet (10) and rotor punching (11) are provided with baffle plate (8), are provided with cushion block (9) between baffle plate (8) and the permanent magnet (10).
2. a kind of interior permanent magnet machines rotor structure according to claim 1 is characterized in that: described rotor punching (11) and pressing plate (6) are provided with through hole, and through hole is used for fixing permanent magnet (10) setting-in frock.
3. a kind of interior permanent magnet machines rotor structure according to claim 1 and 2; It is characterized in that: described interior permanent magnet machines rotor structure comprises and axially fastens part (3) and retainer (4), through axially fastening part (3) and retainer (4) fixed dam (8).
4. a kind of interior permanent magnet machines rotor structure according to claim 3 is characterized in that: axially fasten part (3) and retainer (4) is fixed on baffle plate (8) on the rotor punching (11) through described.
5. a kind of interior permanent magnet machines rotor structure according to claim 3 is characterized in that: on described baffle plate (8), have compensating groove, the dynamic balancing of in compensating groove, proofreading and correct rotor through balance weight and screw (7).
6. a kind of interior permanent magnet machines rotor structure according to claim 3 is characterized in that: be provided with rotation preventing device between trim ring before described (2) and the baffle plate (8).
7. a kind of interior permanent magnet machines rotor structure according to claim 6 is characterized in that: between described back trim ring (12) and baffle plate (8), be provided with rotation preventing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202816923U CN202260713U (en) | 2011-08-04 | 2011-08-04 | Built-in rotor structure of permanent-magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202816923U CN202260713U (en) | 2011-08-04 | 2011-08-04 | Built-in rotor structure of permanent-magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260713U true CN202260713U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202816923U Expired - Lifetime CN202260713U (en) | 2011-08-04 | 2011-08-04 | Built-in rotor structure of permanent-magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260713U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401334A (en) * | 2013-07-31 | 2013-11-20 | 江苏经纬轨道交通设备有限公司 | Rotor pressing ring |
| CN103715802A (en) * | 2013-12-01 | 2014-04-09 | 王必生 | Permanent magnet motor rotor structure |
| CN103746530A (en) * | 2014-01-22 | 2014-04-23 | 永济新时速电机电器有限责任公司 | Ship propelling-type permanent-magnetic motor |
| CN104756367A (en) * | 2012-10-26 | 2015-07-01 | 格兰富控股联合股份公司 | Rotor for an electric motor |
| CN107508395A (en) * | 2016-06-14 | 2017-12-22 | 中电电机股份有限公司 | Permanent magnet machine rotor |
| CN107623398A (en) * | 2016-07-15 | 2018-01-23 | 天津瑞林迪金属制品有限公司 | Rotor cover plate |
| CN109687611A (en) * | 2019-03-04 | 2019-04-26 | 中车永济电机有限公司 | Rotor salient pole iron core pressure mounting structure |
| CN109756046A (en) * | 2019-03-29 | 2019-05-14 | 沈阳工业大学 | A kind of permanent magnet built-in rotor structure of magneto |
| CN110474457A (en) * | 2018-05-12 | 2019-11-19 | 汤秉辉 | Motor |
| CN113991902A (en) * | 2021-11-04 | 2022-01-28 | 山东中喆德元智能装备有限公司 | Efficient body excitation motor rotor structure, mounting method and motor |
-
2011
- 2011-08-04 CN CN2011202816923U patent/CN202260713U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756367A (en) * | 2012-10-26 | 2015-07-01 | 格兰富控股联合股份公司 | Rotor for an electric motor |
| CN103401334A (en) * | 2013-07-31 | 2013-11-20 | 江苏经纬轨道交通设备有限公司 | Rotor pressing ring |
| CN103715802A (en) * | 2013-12-01 | 2014-04-09 | 王必生 | Permanent magnet motor rotor structure |
| CN103746530A (en) * | 2014-01-22 | 2014-04-23 | 永济新时速电机电器有限责任公司 | Ship propelling-type permanent-magnetic motor |
| CN103746530B (en) * | 2014-01-22 | 2016-02-24 | 永济新时速电机电器有限责任公司 | Ship Propeling vertical permanent magnet motor |
| CN107508395A (en) * | 2016-06-14 | 2017-12-22 | 中电电机股份有限公司 | Permanent magnet machine rotor |
| CN107623398A (en) * | 2016-07-15 | 2018-01-23 | 天津瑞林迪金属制品有限公司 | Rotor cover plate |
| CN110474457A (en) * | 2018-05-12 | 2019-11-19 | 汤秉辉 | Motor |
| CN109687611A (en) * | 2019-03-04 | 2019-04-26 | 中车永济电机有限公司 | Rotor salient pole iron core pressure mounting structure |
| CN109756046A (en) * | 2019-03-29 | 2019-05-14 | 沈阳工业大学 | A kind of permanent magnet built-in rotor structure of magneto |
| CN109756046B (en) * | 2019-03-29 | 2020-06-09 | 沈阳工业大学 | Permanent magnet built-in rotor structure of permanent magnet motor |
| CN113991902A (en) * | 2021-11-04 | 2022-01-28 | 山东中喆德元智能装备有限公司 | Efficient body excitation motor rotor structure, mounting method and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412001 Hunan Province, Zhuzhou Shifeng District Tian Xin era Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: 412001 Hunan Province, Zhuzhou Shifeng District Tian Xin era Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |