CN103501065A - Chute low-noise motor - Google Patents
Chute low-noise motor Download PDFInfo
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- CN103501065A CN103501065A CN201310469042.5A CN201310469042A CN103501065A CN 103501065 A CN103501065 A CN 103501065A CN 201310469042 A CN201310469042 A CN 201310469042A CN 103501065 A CN103501065 A CN 103501065A
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- iron core
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Abstract
The invention relates to a motor, in particular to a chute low-noise motor, which comprises a machine seat, a stator, a rotor and a rotating shaft, wherein the stator, the rotor and the rotating shaft are arranged on the machine seat, the rotor comprises at least two sections of rotor iron cores, the rotor iron cores are punched and laminated by a false axis inclination angle taper key method to form chute iron cores; chutes of the adjacent chute iron cores are in opposite directions and are in arrangement in a way of staggering for an angle alpha. Therefore, the chute low-noise motor has the following advantages that 1, great-degree optimization is respectively realized in aspects of vibration, noise, iron core laminating quality, cast aluminum quality and chute cast aluminum rotor structure adopted by a high-power motor, and the chute low-noise motor is suitable for small and medium-sized cast aluminum rotor structure alternating current motors with higher vibration and noise requirements; 2, the stress uniformity and the rigidity of iron core laminating punching are fundamentally ensured, the iron core laminating quality is improved, the influence of deformation on vibration noise is reduced, the aluminum overflowing and bubble problems are solved, and the quality of the cast aluminum rotor and the motor performance reliability are improved.
Description
Technical field
The present invention relates to a kind of motor, especially relate to a kind of skewed slot low noise motor.
Background technology
The vibration of motor and noise more and more cause people's attention and concern, especially at some special occasions, as more harsh to vibration (the construct noise under-chassis acceleration) requirement of motor as the military boats and ships field.The motor skewed slot be owing to can effectively weakening slot ripples and harmonic wave magnetomotive force size a little less than motor, and reduce vibration and noise and be widely used, the more use single-bevel groove structure of motor usually, but the single-bevel groove structure exists axial force easily to cause axial motion and torsional oscillation; Also there is document to propose double skewed slots " herringbone " structure (similar to the present invention), be difficult to guarantee but exist punching to laminate discontinuity, Cast Aluminum Dies complexity and cast aluminium quality, have problems especially in high-power cast-aluminum rotor structure.
Summary of the invention
The objective of the invention is to overcome the prior art shortcoming, a kind of skewed slot low noise motor is provided, it adopts the skewed slot cast-aluminum rotor structure that optimization is largely all arranged in vibration and noise, iron core laminated quality, cast aluminium quality and heavy-duty motor, applicable higher to vibration and noise requirements, motor type is middle-size and small-size cast-aluminum rotor structure alternating current machine; Also have, fundamentally guaranteed the stressed uniformity and the rigidity of iron core laminated punching, improved the iron core laminated quality, reduced the impact of distortion on vibration noise, solved the excessive and bubble of aluminium, improved quality and the motor performance reliability of cast-aluminum rotor.
Technical scheme of the present invention is:
A kind of skewed slot low noise motor, comprise support, be arranged on stator, rotor and rotating shaft on support; Described rotor comprises at least two-stage rotor iron core, and described rotor core adopts the taper key method punching of dummy shaft inclination angle to laminate and forms the skewed slot iron core; The skewed slot of adjacent skewed slot iron core is rightabout and the angle that staggers
arrange.
The employing of the invention the multisection type flume structure of particular design, on the one hand, the symmetrical negative function of multisection type skewed slot special construction, can eliminate axial and twisting vibration, on the other hand, the non-integral multiple skewed slot distance that is different from 1 times of skewed slot distance of recommended by routine and adopts, analyze with the skewed slot of harmonic wave magnetomotive force analysis optimization and weakened to the full extent the harmonic number that produces low order apart from (1.2 times) by Reeb, reduced the size of electro-magnetic exciting force, thereby motor oscillating and electromagnetic noise have been greatly reduced, simultaneously, the band of particular design seals the integrated new damping-ring of whole ring flat-plate, simplified the spelling compression technology of complicated many molds, the commonly used lining method of adding before having cancelled, substantially do not changing under the prerequisite of cast-aluminum die, the stressed uniformity and the rigidity of iron core laminated punching have fundamentally been guaranteed, improved the iron core laminated quality, reduced the impact of distortion on vibration noise, solved the excessive and bubble of aluminium, quality and the motor performance reliability of cast-aluminum rotor have been improved, in addition, expand use field and the scope of heavy-duty motor cast-aluminum rotor on low-vibration noise.
As preferably, the described angle that staggers
according to the setting of giving a definition:
Wherein
z 2 for the rotor number, the iron core segments is long and watt level according to iron core, and the requirement of vibration noise determine, and small-power often adopts two-part, and the employing multisection type of high-power and specific (special) requirements, be distributed as symmetry.
As preferably, the skewed slot of skewed slot iron core is apart from the stator tooth distance that is 1.2 times, choosing of the skewed slot distance of rotor core is not to adopt conventional method to recommend one times of (integer) stator tooth distance, but adopt non-integral multiple skewed slot, for the low-vibration noise motor, need to analyze with the harmonic wave magnetomotive force and be analyzed by Reeb, make low order 5 times, especially the harmonic number that produces low order for 7 times weakens or equals zero, and therefore, the skewed slot of skewed slot iron core is apart from the stator tooth distance that is 1.2 times.
As preferably, the dummy shaft inclination angle of skewed slot iron core
for diameter of stator bore,
for the dummy shaft external diameter,
for the skewed slot distance, L is unshakable in one's determination long.
As preferably, also be provided with a damping ring between rotor core, described damping ring adopts whole ring flat-plate integral structure, comprises the scallop hole of filling aluminum, circumferentially fluting muscle between loop seal, adjacent scallop hole is set and with the support ring of endoporus.It is passable that the width d of new damping-ring is slightly larger than rotor groove width full circle, the sealing height kd of new damping-ring is high and rotor outer circle diameter decision by the rotor punching groove, general new damping-ring external diameter Nd is slightly larger than approximately 0.5～3.5mm of rotor punching outside diameter, to the high-power higher value of getting, about 0.2～the 1mm of the high circle of inner opening circular diameter Nd1 specific impulse film trap, slot several according to watt level and the decision of rotor punching groove number, high-power choosing is worth greatly, the fluting muscle slightly approximately is less than the narrowest separation of punching apart from Cd, inner opening round bottom circle Nd2 lower than rotor at the bottom of the about 2～4mm of circle, new damping-ring inner circle Nd3 is consistent with rotating shaft or rotor field spider diameter, whether hole in the middle of circle and inner circle at the bottom of new damping-ring or hollow out the needs that depend on rotor size and motor loss of weight.New damping-ring is preferentially selected the non-magnet_conductible material corrosion resistant plate, and general steel plate can be selected in less demanding place.
Therefore, the present invention has following advantage: 1. in vibration and noise, iron core laminated quality, cast aluminium quality and heavy-duty motor, adopt the skewed slot cast-aluminum rotor structure that optimization is largely all arranged, applicable higher to vibration and noise requirements, motor type is middle-size and small-size cast-aluminum rotor structure alternating current machine; 2. fundamentally guarantee the stressed uniformity and the rigidity of iron core laminated punching, improved the iron core laminated quality, reduced the impact of distortion on vibration noise, solved the excessive and bubble of aluminium, improved quality and the motor performance reliability of cast-aluminum rotor.
The accompanying drawing explanation
Fig. 1 is the special skewed slot low noise motor of the present invention structural representation;
Fig. 2 is special multisection type skewed slot low noise motor rotor schematic diagram;
Fig. 3 is special two-part skewed slot low noise motor rotor schematic diagram;
Fig. 4 is that special skewed slot low noise motor rotor core skewed slot laminates schematic diagram;
Fig. 5 is the whole ring flat-plate integral structure new damping-ring schematic diagram of band sealing.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In figure, 1-stator, 1.1-support, 1.2-stator winding, 1.3-stator core, 2-rotor, 2.1-rotor core, 2.2-new damping-ring, 2.3-aluminium, 2.4-rotating shaft.
embodiment:
Below introduce specific embodiments of the invention and correlated parts dimensional requirement:
As shown in Fig. 1～5, a kind of special skewed slot low noise motor, it is by stator 1, and rotor 2 forms; Wherein stator 1 is by support 1.1, and stator winding 1.2 and stator core 1.3 form; Rotor 2 is by rotor core 2.1, new damping-ring 2.2, and aluminium 2.3 and rotating shaft 2.4 form;
The described special skewed slot low noise motor iron core chute of Fig. 2 and Fig. 3 does not adopt the stator tooth distance of conventional 1 times apart from bsk, the present embodiment has adopted the stator tooth distance of 1.2 times, adopt the taper key method punching of dummy shaft inclination angle to be overrided to form, the dummy shaft inclination angle is calculated and is carried out as stated above, divide two sections reverse skewed slots to two-part skewed slot iron core, and the angle that staggers, the dislocation angle of its rotor core is pressed along rotor outer circle
angle is carried out, the concrete lamination process of iron core is shown in Fig. 4, first by dummy shaft one end is fixing, by taper key, fold first paragraph L1, after the reason sheet is pressurized to the length of regulation, place new damping-ring 2.2, continuation is folded second segment L1 by taper key, reason is after sheet is pressurized to the length of regulation, and pressurize is fixed strain dummy shaft frock briquetting then, guarantees that iron core press-fits not flick, to the same two-part of multisection type Fig. 2 principle, only the iron core sector boss is different.
Rotor when assembling, first iron core is directly overlapped to 2.3 moulding of Cast Aluminum Dies cast aluminium, then the hot jacket rotating shaft 2.4, are press fit into the size of appointment, carry out follow-up rotor machining after cooling.
In the present embodiment, the dummy shaft inclination angle is 2 ° 45 "; the New Damping ring width is d=7mm; the fluting muscle is apart from Cd=3mm; the sealing height kd=2.5mm of new damping-ring, new damping-ring external diameter Nd=φ 304mm, inner opening circular diameter Nd1=φ 299mm; inner opening round bottom circle Nd2=φ 200mm, new damping-ring inner circle Nd3=φ 100mm.
Principle of the present invention is wherein: by Reeb and harmonic wave magnetomotive force, analyze, skewed slot after optimization can well not make low order 5 times apart from (not adopting conventional 1 times of stator tooth distance), especially the harmonic number that produces low order for 7 times weakens or equals zero, reduced greatly the impact of electromagnetic force on vibration and noise, simultaneously, special multisection type skewed slot is because the axial motion power stressed size that interacts is the same, direction is just cancelled each other on the contrary, can effectively reduce the impact that moves axially and reverse motor oscillating, on the other hand, it is not only simple in structure that integrated band seals whole ring flat-plate integral structure new damping-ring, stressed all even rigidity of punching while having guaranteed iron core laminated, improved the iron core laminated quality, reduced the impact of distortion on vibration noise, the design of band sealing has simultaneously also fundamentally solved the excessive and bubble of aluminium, making it does not have too many difference with common single-bevel groove cast aluminium, quality and the motor performance reliability of cast-aluminum rotor have been improved, because this invention has fundamentally solved special multisection type skewed slot cast aluminium frock complexity, press-fit unbalance stress, exist aluminium to overflow and the problems such as bubble, also expanded use field and the scope of heavy-duty motor cast-aluminum rotor on low-vibration noise simultaneously
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (5)
1. a skewed slot low noise motor, is characterized in that, comprises support, is arranged on stator, rotor and rotating shaft on support; Described rotor comprises at least two-stage rotor iron core, and described rotor core adopts the taper key method punching of dummy shaft inclination angle to laminate and forms the skewed slot iron core; The skewed slot of adjacent skewed slot iron core is rightabout and the angle that staggers
arrange.
2. a kind of skewed slot low noise motor according to claim 1, is characterized in that, the described angle that staggers
according to the setting of giving a definition:
3. a kind of skewed slot low noise motor according to claim 1, is characterized in that, the skewed slot of skewed slot iron core is apart from the stator tooth distance that is 1.2 times.
4. a kind of skewed slot low noise motor according to claim 1, is characterized in that, tiltedly
The dummy shaft inclination angle of channel core
for diameter of stator bore,
for the dummy shaft external diameter,
for the skewed slot distance, L is unshakable in one's determination long.
5. a kind of skewed slot low noise motor according to claim 1, it is characterized in that, also be provided with a damping ring between rotor core, described damping ring adopts whole ring flat-plate integral structure, comprises the scallop hole of filling aluminum, circumferentially fluting muscle between loop seal, adjacent scallop hole is set and with the support ring of endoporus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310469042.5A CN103501065B (en) | 2013-10-10 | 2013-10-10 | A kind of chute low-noise motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310469042.5A CN103501065B (en) | 2013-10-10 | 2013-10-10 | A kind of chute low-noise motor |
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| CN103501065A true CN103501065A (en) | 2014-01-08 |
| CN103501065B CN103501065B (en) | 2016-02-24 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712340A (en) * | 2017-02-28 | 2017-05-24 | 合肥工业大学 | Damping ring for multi-section aluminum-casting rotor and processing method of aluminum-casting rotor |
| CN106849423A (en) * | 2017-02-28 | 2017-06-13 | 合肥工业大学 | The groove fit structures such as double skewed slots rotor, the rotor based on the rotor |
| CN106849422A (en) * | 2017-02-28 | 2017-06-13 | 合肥工业大学 | A kind of four iron leg core cast-aluminum rotors, stator, motor with flume structure |
| CN107070026A (en) * | 2017-02-28 | 2017-08-18 | 合肥工业大学 | A kind of skewed slot cast-aluminum rotor |
| CN107516981A (en) * | 2017-08-23 | 2017-12-26 | 常州神力电机股份有限公司 | A kind of skewed stator core slot lamination tooling taper key device |
| CN108377045A (en) * | 2018-04-25 | 2018-08-07 | 广东威灵电机制造有限公司 | The rotor of motor and motor with it |
| CN108880026A (en) * | 2018-07-26 | 2018-11-23 | 珠海格力电器股份有限公司 | Rotor, motor |
| CN113394891A (en) * | 2021-08-02 | 2021-09-14 | 合肥工业大学智能制造技术研究院 | Double-radial chute cage type induction motor rotor structure |
| CN114039470A (en) * | 2021-09-16 | 2022-02-11 | 中国船舶重工集团公司第七0九研究所 | Novel induction motor rotor |
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| CN85205739U (en) * | 1985-12-30 | 1986-10-01 | 宁夏轻工设计研究所 | Alternating-current asynchronous motor with herringbone-slotted rotor |
| JP2002218723A (en) * | 2001-01-19 | 2002-08-02 | Fujitsu General Ltd | Rotor for induction motor |
| CN101964557A (en) * | 2010-11-11 | 2011-02-02 | 无锡市中达电机有限公司 | Rotor sheets of four-pole motor |
| CN201898424U (en) * | 2010-11-01 | 2011-07-13 | 常州市裕成富通电机有限公司 | Electric vehicle motor rotor |
| CN103066721A (en) * | 2013-02-05 | 2013-04-24 | 湘潭电机股份有限公司 | Skewed rotor core and manufacturing method thereof and motor comprising skewed rotor core |
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2013
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Patent Citations (5)
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| CN85205739U (en) * | 1985-12-30 | 1986-10-01 | 宁夏轻工设计研究所 | Alternating-current asynchronous motor with herringbone-slotted rotor |
| JP2002218723A (en) * | 2001-01-19 | 2002-08-02 | Fujitsu General Ltd | Rotor for induction motor |
| CN201898424U (en) * | 2010-11-01 | 2011-07-13 | 常州市裕成富通电机有限公司 | Electric vehicle motor rotor |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849423A (en) * | 2017-02-28 | 2017-06-13 | 合肥工业大学 | The groove fit structures such as double skewed slots rotor, the rotor based on the rotor |
| CN106849422A (en) * | 2017-02-28 | 2017-06-13 | 合肥工业大学 | A kind of four iron leg core cast-aluminum rotors, stator, motor with flume structure |
| CN107070026A (en) * | 2017-02-28 | 2017-08-18 | 合肥工业大学 | A kind of skewed slot cast-aluminum rotor |
| CN106712340A (en) * | 2017-02-28 | 2017-05-24 | 合肥工业大学 | Damping ring for multi-section aluminum-casting rotor and processing method of aluminum-casting rotor |
| CN106849422B (en) * | 2017-02-28 | 2019-08-30 | 合肥工业大学 | A kind of four iron leg core cast-aluminum rotors and motor with flume structure |
| CN106849423B (en) * | 2017-02-28 | 2023-11-21 | 合肥工业大学 | Double-chute rotor and stator-rotor equal-groove matching structure based on same |
| CN107516981B (en) * | 2017-08-23 | 2023-08-22 | 常州神力电机股份有限公司 | Inclined key device for stator core chute lamination tooling |
| CN107516981A (en) * | 2017-08-23 | 2017-12-26 | 常州神力电机股份有限公司 | A kind of skewed stator core slot lamination tooling taper key device |
| CN108377045A (en) * | 2018-04-25 | 2018-08-07 | 广东威灵电机制造有限公司 | The rotor of motor and motor with it |
| CN108377045B (en) * | 2018-04-25 | 2024-01-05 | 广东威灵电机制造有限公司 | Rotor of motor and motor with same |
| CN108880026A (en) * | 2018-07-26 | 2018-11-23 | 珠海格力电器股份有限公司 | Rotor, motor |
| CN113394891B (en) * | 2021-08-02 | 2023-07-25 | 合肥工业大学智能制造技术研究院 | Biradial chute cage type induction motor rotor structure |
| CN113394891A (en) * | 2021-08-02 | 2021-09-14 | 合肥工业大学智能制造技术研究院 | Double-radial chute cage type induction motor rotor structure |
| CN114039470A (en) * | 2021-09-16 | 2022-02-11 | 中国船舶重工集团公司第七0九研究所 | Novel induction motor rotor |
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| CN103501065B (en) | 2016-02-24 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20140108 Assignee: Qingdao Haixi Electric Machine Co., Ltd. Assignor: No.712 Inst., China Ship Heavy Industry Group Co. Contract record no.: 2014370000113 Denomination of invention: A kind of skewed slot low noise motor License type: Exclusive License Record date: 20140624 |
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