CN101083411B - Permanent-magnetic electric machine rotor magnet steel fixing structure - Google Patents
Permanent-magnetic electric machine rotor magnet steel fixing structure Download PDFInfo
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- CN101083411B CN101083411B CN2006100609195A CN200610060919A CN101083411B CN 101083411 B CN101083411 B CN 101083411B CN 2006100609195 A CN2006100609195 A CN 2006100609195A CN 200610060919 A CN200610060919 A CN 200610060919A CN 101083411 B CN101083411 B CN 101083411B
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Abstract
The invention discloses a permanent motor rotor alnico fixing structure, mainly comprising: rotating shaft, rotor iron core, two alnico pressure plates and magnet, where the two alnico pressure plates are separately arranged on two end surfaces of the rotor iron core and fixed, the rotating shaft runs through the middles of the alnico pressure plates and the rotor iron core and is fixed, and especially, the alnico pressure plate is formed with several screw holes for regulating dynamic balance, where the axes of these screw holes are distributed on a circle coaxial with the rotating shaft. And it has simple structure and is convenient to dynamic balancing.
Description
Technical field
The present invention relates to a kind of permanent-magnetic electric machine rotor magnet steel fixing structure, especially relate to a kind of simple in structure, dynamic balance weight permanent-magnetic electric machine rotor magnet steel fixing structure easily.
Background technology
At present, general embedded permanent-magnet brushless DC electric machine is made up of stator module, rotor assembly, case component, Hall subassembly four parts.Stator module comprises stator core that has groove and the coil windings that is placed in the groove; Rotor assembly comprises the rotor core that has the magnet jack, is placed on permanent magnet, axle and magnet steel pressing plate in the jack, because rotor relates to dynamic balance test and permanent magnet need be fixed in the rotor core, common way is to adopt various complicated ferrous materials fixed structures that iron core and axle are fixed together the overweight and dynamic balancing circulation poor repeatability of rotor quality.Please refer to Fig. 1, its dc brushless motor rotor structure comprises: the rotor core 4 that rotating shaft 1, silicon steel plate stacking form, magnet 5, rotor tightens hole 6, a pair of magnet steel retainer ring 7, front end pressure ring 8, rear end inner pressure ring 9, magnet steel retainer ring 10, and outer press ring 11 parts such as grade in rear end are formed.Adopt two magnet steel retainer rings, pressure ring of front end, two pressure rings in rear end to fix the magnet in the rotor core, and two pressure rings in rear end need tight fit or welding.
But the existing dc brushless motor rotor of this said structure has following shortcoming:
Only magnet fixation structure just has the element of five structure relative complex, and in the assembling process even need welding or tight fit to compress, manufacturability is relatively poor; And crucial is to do dynamic balance test of rotor, finish a dynamic balancing after various fixtures destroyed, can't or difficulty carry out the second time even dynamic balance test for the third time.And from the rotor experience of multikilowatt motor, the computing ballance correction of this structure is relatively large, so need take iron structure to satisfy dynamically balanced requirement.
Summary of the invention
In view of above-mentioned deficiency, main purpose of the present invention is to provide a kind of simple in structure, dynamic balance weight permanent-magnetic electric machine rotor magnet steel fixing structure easily.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of permanent-magnetic electric machine rotor magnet steel fixing structure, mainly comprise rotating shaft, rotor core, two magnet steel pressing plates, magnet, wherein these two magnet steel pressing plates are separately positioned on two end faces of rotor core and are fixed, rotating shaft passes the middle part of magnet steel pressing plate and rotor core and is fixed, especially be formed with several screwed holes on the described magnet steel pressing plate in order to the allotment computing ballance correction, the axle center of these screwed holes be distributed in a coaxial circumference of rotating shaft on, and described screwed hole is distributed on this circumference, by assembling standard screws and pad on described screwed hole rotor is carried out dynamic balance weight.
On the said structure basis, wherein:
Also comprise several bolts, and described rotor core by several magnetic links rotating shaft axially on superpose and form, wherein be provided with several locking holes accordingly on each magnetic links, be provided with several through holes with the corresponding position of this locking hole on these two magnet steel pressing plates, these bolts are to pass those locking holes and through hole, lock by nut check or pin and two magnet steel pressing plates are separately fixed at two end faces of rotor core.Wherein, described bolt, locking hole, through hole are six.
Described magnet steel pressing plate is meant aluminium matter magnet steel pressing plate.
Described several screwed holes are uniform 12 screwed holes or six screwed holes.
The present invention is compared to prior art, its advantage is, permanent-magnetic electric machine rotor magnet steel fixing structure of the present invention, use the identical and simple relatively aluminum magnet steel pressing plate of two structures to fix the magnet that is arranged in rotor core, and have on the aluminium magnet steel pressing plate and be exclusively used in the screwed hole of adjusting moving flat amount usefulness, because this rotor structure adopts aluminium sheet, computing ballance correction can be adjusted with minipad and Screw in several grams fully.The simple relatively processing cost of this structure is low, and lighter weight, the quality that has increased motor are than power, and the realization dynamic balancing is easy, and the repetition that can circulate.Can adjust the relative position of rotor and stator in the time of necessary by the thickness that changes aluminium magnet steel pressing plate, help reducing the machining accuracy of miscellaneous part, very favourable to the motor global design.
In addition, the present invention adopts aluminium matter pressing plate, but not expensive brass material pressing plate, the also non-pressing plate that influences the magnet steel material of rotor magnetic circuit, therefore with low cost, effective.
Description of drawings
In order to be easy to explanation, the present invention is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the cross-sectional view of dc brushless motor rotor structure in the prior art.
Fig. 2 is the cross-sectional view of permanent-magnetic electric machine rotor magnet steel fixing structure of the present invention.
Fig. 3 is that the master of the aluminium magnet steel pressing plate of permanent-magnetic electric machine rotor magnet steel fixing structure of the present invention looks schematic diagram.
Embodiment
See also Fig. 2 and Fig. 3, permanent-magnetic electric machine rotor magnet steel fixing structure of the present invention mainly is made up of rotating shaft 20, rotor core 80, two magnet steel pressing plates 30, magnet 70, bolts 60.
Wherein two magnet steel pressing plates 30 are separately positioned on two end faces of rotor core 80, because magnet length 70 is consistent with the length of rotor core 80, magnet steel pressing plate 30 is directly contacted with the both ends of the surface of rotor core 80, form on several magnetic links of rotor core 80 rotating shaft 20 axially on stack form, wherein be provided with locking hole (scheming not shown) on each magnetic links accordingly, be provided with through hole 31 with the corresponding position of this locking hole on these two magnet steel pressing plates 30, pass corresponding through hole 31 on the locking hole of rotor core 80 and the magnet steel pressing plate 30 with bolt 60 then, lock by nut check or pin again, and two magnet steel pressing plates 30 are separately fixed at two end faces of rotor core 80.And the middle part of magnet steel pressing plate 30 and rotor core 80 plugs rotating shaft 20.
Magnet steel pressing plate 30 is equipped with the perforation 35 that cooperates with rotating shaft 20 with middle part on the rotor core 80, simultaneously also be provided with 12 uniform (also can be six the certainly) screwed holes 33 that are positioned on the concentric circles at magnet steel pressing plate 30, these 12 screwed holes 33 are to be used for allocating computing ballance correction, because the weight of standard screws and pad is all known, on dynamic balancing machine, measure the amount of unbalance of each end face, can be simply by screw and pad cooperate by dynamic balancing measurement (≤0.5g), putting screw thread glue is then fixed, strengthen the stability of whole rotor, rotor be may operate under the higher rotation speed.
Magnet steel pressing plate 30 among the present invention is meant aluminium matter magnetic pressure steel plate, and its price low quality is light, and the rotor unbalancing value is smaller.
Claims (5)
1. permanent-magnetic electric machine rotor magnet steel fixing structure, mainly comprise rotating shaft, rotor core, two magnet steel pressing plates, magnet, wherein these two magnet steel pressing plates are separately positioned on two end faces of rotor core and are fixed, rotating shaft passes the middle part of magnet steel pressing plate and rotor core and is fixed, it is characterized in that: be formed with several screwed holes on the described magnet steel pressing plate in order to the allotment computing ballance correction, the axle center of these screwed holes be distributed in a coaxial circumference of rotating shaft on, and described screwed hole is distributed on this circumference, by assembling standard screws and pad on described screwed hole rotor is carried out dynamic balance weight.
2. permanent-magnetic electric machine rotor magnet steel fixing structure as claimed in claim 1, it is characterized in that: also comprise several bolts, and described rotor core by several magnetic links rotating shaft axially on superpose and form, wherein be provided with several locking holes accordingly on each magnetic links, be provided with several through holes with the corresponding position of this locking hole on these two magnet steel pressing plates, these bolts are to pass those locking holes and through hole, lock by nut check or pin and two magnet steel pressing plates are separately fixed at two end faces of rotor core.
3. permanent-magnetic electric machine rotor magnet steel fixing structure as claimed in claim 1 or 2 is characterized in that: described magnet steel pressing plate is meant aluminium matter magnet steel pressing plate.
4. permanent-magnetic electric machine rotor magnet steel fixing structure as claimed in claim 1 or 2 is characterized in that: described several screwed holes are uniform 12 screwed holes or six screwed holes.
5. permanent-magnetic electric machine rotor magnet steel fixing structure as claimed in claim 2 is characterized in that: described bolt, locking hole, through hole are six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100609195A CN101083411B (en) | 2006-05-30 | 2006-05-30 | Permanent-magnetic electric machine rotor magnet steel fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100609195A CN101083411B (en) | 2006-05-30 | 2006-05-30 | Permanent-magnetic electric machine rotor magnet steel fixing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101083411A CN101083411A (en) | 2007-12-05 |
| CN101083411B true CN101083411B (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006100609195A Active CN101083411B (en) | 2006-05-30 | 2006-05-30 | Permanent-magnetic electric machine rotor magnet steel fixing structure |
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Families Citing this family (20)
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| CN102097875A (en) * | 2010-08-17 | 2011-06-15 | 山东力久特种电机有限公司 | Magnetic steel device for multipole permanent magnet motor rotor |
| CN102142759B (en) * | 2010-11-22 | 2012-11-28 | 常州市裕成富通电机有限公司 | Motor for electric vehicle |
| CN102332797A (en) * | 2011-08-06 | 2012-01-25 | 无锡市中达电机有限公司 | Balancing disk structure of motor |
| CN103683585A (en) * | 2012-08-30 | 2014-03-26 | 北京超同步科技有限公司 | Permanent magnet motor rotor |
| CN102832729B (en) * | 2012-08-31 | 2015-06-17 | 芜湖杰诺瑞汽车电器系统有限公司 | Permanent magnet synchronous motor rotor and manufacturing process thereof |
| CN102891555A (en) * | 2012-10-11 | 2013-01-23 | 无锡市亨达电机有限公司 | Dual-purpose three-phase permanent magnet synchronous motor rotor structure for power frequency and frequency conversion control |
| CN104704727A (en) * | 2012-12-03 | 2015-06-10 | 三菱电机株式会社 | Rotor of rotating electrical machine and method for manufacturing same |
| CN103516153A (en) * | 2013-10-23 | 2014-01-15 | 中达电机股份有限公司 | Rotor tooth pressure plate structure with rotor balancing function |
| CN103618407B (en) * | 2013-12-12 | 2016-06-08 | 北京曙光航空电气有限责任公司 | The rotor dynamic balancing structure of a kind of four pole high speed alternator |
| CN103698128B (en) * | 2013-12-23 | 2016-05-11 | 武汉理工大学 | A kind of air gaps hybrid magnetic suspension bearing performance testing device |
| CN106961178A (en) * | 2016-01-08 | 2017-07-18 | 台湾电产科技股份有限公司 | Suitable for the counter weight construction of syncmotor |
| CN107623398A (en) * | 2016-07-15 | 2018-01-23 | 天津瑞林迪金属制品有限公司 | Rotor cover plate |
| CN106208451A (en) * | 2016-08-31 | 2016-12-07 | 安徽安凯汽车股份有限公司 | A kind of magneto composite fabricated rotor end plate |
| 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 |
| CN106374658A (en) * | 2016-12-02 | 2017-02-01 | 江苏超力电器有限公司 | PMSM (Permanent Magnet Synchronous Motor) rotor structure of new-energy automobile |
| WO2018232633A1 (en) * | 2017-06-21 | 2018-12-27 | Schaeffler Technologies AG & Co. KG | Component of generator and generator having the component |
| 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 |
| CN108494155B (en) * | 2018-06-14 | 2024-01-23 | 成都银河磁体股份有限公司 | Dynamic balance adjustable rotor assembly and processing method |
| CN110323859A (en) * | 2019-06-17 | 2019-10-11 | 珠海格力电器股份有限公司 | A kind of rotor and permanent-magnet synchronous driving motor |
| CN111446793A (en) * | 2020-05-06 | 2020-07-24 | 哈尔滨电机厂有限责任公司 | Dynamic balance magnet yoke counterweight method for hydroelectric generating set |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5258675A (en) * | 1991-10-15 | 1993-11-02 | Marathon Electric Manufacturing Corporation | Mount apparatus for rotatable apparatus coupled to a rotating drive unit |
| CN1373544A (en) * | 2001-12-25 | 2002-10-09 | 江西喜泰电机有限公司 | Electric machine with ring windings on internal and external rotors without slots |
| CN2753039Y (en) * | 2004-11-24 | 2006-01-18 | 贺雷 | Ring starting/power generator external rotor assembly |
-
2006
- 2006-05-30 CN CN2006100609195A patent/CN101083411B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5258675A (en) * | 1991-10-15 | 1993-11-02 | Marathon Electric Manufacturing Corporation | Mount apparatus for rotatable apparatus coupled to a rotating drive unit |
| CN1373544A (en) * | 2001-12-25 | 2002-10-09 | 江西喜泰电机有限公司 | Electric machine with ring windings on internal and external rotors without slots |
| CN2753039Y (en) * | 2004-11-24 | 2006-01-18 | 贺雷 | Ring starting/power generator external rotor assembly |
Non-Patent Citations (1)
| Title |
|---|
| JP平5-15092A 1993.01.22 |
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| Publication number | Publication date |
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| CN101083411A (en) | 2007-12-05 |
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