CN106533032A - Bearing assembly of super-high-speed asynchronous motor - Google Patents
Bearing assembly of super-high-speed asynchronous motor Download PDFInfo
- Publication number
- CN106533032A CN106533032A CN201611192404.0A CN201611192404A CN106533032A CN 106533032 A CN106533032 A CN 106533032A CN 201611192404 A CN201611192404 A CN 201611192404A CN 106533032 A CN106533032 A CN 106533032A
- Authority
- CN
- China
- Prior art keywords
- end bearing
- bearing
- shaft
- extension end
- asynchronous motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
Abstract
The invention discloses a bearing assembly of a super-high-speed asynchronous motor. The bearing assembly comprises a shaft extension end bearing and a non-shaft-extension end bearing; the super-high-speed asynchronous motor comprises a bottom frame, wherein a stator assembly is arranged on the bottom frame; a shaft extension end bearing pedestal and a non-shaft-extension end bearing pedestal are arranged on the two sides of the stator assembly on the bottom frame respectively; the shaft extension end bearing and the non-shaft-extension end bearing are arranged on the shaft extension end bearing pedestal and the non-shaft-extension end bearing pedestal respectively; and the shaft extension end bearing and the non-shaft-extension end bearing are four-oil-lobe-tile bearings. According to the bearing assembly of the super-high-speed asynchronous motor, by setting the bearing pedestals below the corresponding bearings, the supporting rigidity of the bearings is improved, and influence to a rotor from stator modal excitation is effectively lowered; the shaft extension end bearing and the non-shaft-extension end bearing adopt the four-oil-lobe-tile bearings, so that the dynamic requirement of high speed rotation of the rotor of the super-high-speed asynchronous motor is satisfied by the bearings while cost performance is taken into consideration; and therefore, foundation is laid for the successful execution of the super-high-speed asynchronous motor, and reference is provided for selection of the subsequent motor bearings with higher capacity and higher rotary speed level.
Description
Technical field
The present invention relates to a kind of bearing assembly of the ultrahigh speed asynchronous motor for field of motor manufacturing.
Background technology
Bearing is the core component of super high speed electric machine.The good bearing Selection and Design of ultrahigh speed asynchronous motor can be improved
System service life, reduce friction Temperature Rise, improve Rotor System Dynamic Characteristics, shorten maintenance time and reduce maintenance cost.
In the configuration of existing ultrahigh speed asynchronous motor bearing, mainly there are superfinishing sealed rolling bearing, magnetic suspension bearing, gas suspension bearing
Deng.Superfinishing sealed rolling bearing is due to being limited by limit dn (product of axle journal d and rotary rpm n), it is difficult to using super in Large Copacity
High speed application occasion, and rolling bearing vibration and interference resistance is poor；And magnetic suspension bearing, two class bearing of gas suspension bearing are because of control
It is complicated, expensive, it is impossible to be used in industrial circle on a large scale.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided a kind of bearing group of ultrahigh speed asynchronous motor
Part, which is stable, and control is simple, and cost performance is high, can be applied to the application of ultrahigh speed large capacity motor.
A kind of technical scheme for realizing above-mentioned purpose is：A kind of bearing assembly of ultrahigh speed asynchronous motor, including shaft extension
End bearing and non-shaft stretching end bearing；
Ultrahigh speed asynchronous motor includes underframe, on the underframe is provided with stator module, on the underframe, positioned at institute
That states stator module is respectively provided on two sides with a shaft extension end bearing block and a non-shaft stretching end bearing block；The shaft extension end bearing sets
Put on the shaft extension end bearing block, its rotor connecting hole faces the central authorities of the front end face of the stator module；The non-axle
Stretch end bearing to be arranged on the non-shaft stretching end bearing block, its rotor connecting hole is faced in the rear end face of the stator module
Centre；
The shaft extension end bearing and the non-shaft stretching end bearing are four oily leaf watt sliding bearings.
Further, the shaft extension end bearing and the non-shaft stretching end bearing are forced oil lubricating system, in the shaft extension
A bearing oil inlet pipe and a bearing flowline is respectively equipped with the side wall of end bearing and the non-shaft stretching end bearing.
Further, the front end face and rear end face of the stator module passes through stator end cap seal, by stator interior and axle
Hold separation.
A kind of bearing assembly of ultrahigh speed asynchronous motor of the present invention, is respectively provided with axle stretch end axle on motor underframe
Bearing and non-shaft stretching end bearing block, are respectively provided with shaft extension end bearing and non-shaft stretching end bearing thereon, and the support that improve bearing is firm
Degree, effectively reduces impact of the stator mode excitation to rotor；Shaft extension end bearing and non-shaft stretching end bearing are using four oily leaf watt cunnings
Dynamic bearing, makes bearing meet the demanding kinetics of ultrahigh speed asynchronous motor rotor high-speed rotation and take into account examining for cost performance
Consider, be that the successful implementation of ultrahigh speed asynchronous motor lays the foundation, be the higher speed level motor reel of follow-up more Large Copacity
Hold type selecting and provide reference.
Description of the drawings
Fig. 1 is a kind of installation of the bearing assembly of ultrahigh speed asynchronous motor of the present invention on ultrahigh speed asynchronous motor
Structural representation；
Fig. 2 is a kind of installation of the bearing assembly of ultrahigh speed asynchronous motor of the present invention on ultrahigh speed asynchronous motor
Structural representation left view.
Specific embodiment
In order to be able to preferably understand to technical scheme, below by specifically embodiment and accompanying drawing is combined
It is described in detail：
Fig. 1 and Fig. 2 is referred to, a kind of bearing assembly of ultrahigh speed asynchronous motor of the present invention, including shaft extension end bearing 2
With non-shaft stretching end bearing 7.
Ultrahigh speed asynchronous motor includes underframe 4, is provided with stator module 5 on underframe, on underframe, positioned at stator module
5 are respectively provided on two sides with a shaft extension end bearing block 3 and a non-shaft stretching end bearing block 6.Shaft extension end bearing 2 is arranged on axle stretch end
On bearing block 3, its rotor connecting hole faces the central authorities of the front end face of stator module 5；Non-shaft stretching end bearing is arranged on non-shaft extension
On end bearing block, its rotor connecting hole faces the central authorities of the rear end face of stator module 5.High-capacity and ultra high-speed Rotational Speed of Asynchronous Motor
Height, and usually need the speed governing in the broad range of speeds, the Modal frequency of its stator module 5 to be partially in rotor speed regulation
In frequency range, if taking end bracket type bearing, the excitation of stator module 5 will occur resonance with rotor 1 in some operating points, affect
The vibration characteristics of rotor 1；The present invention adopts pedestal bearing, bearing to be improve by the bearing seat supports in integrated bottom frame 4
The support stiffness of bearing, effectively reduces impact of 5 modal excitation of stator module to rotor 1.
The type selecting species of shaft extension end bearing 2 and non-shaft stretching end bearing 7 in high-speed asynchronous motor is key technology.In row
Except the not high magnetcisuspension of the superfinishing sealed rolling bearing that limited by the limit dn product of rotary rpm n (axle journal d with) and cost performance
Floating axle holds, after gas suspension bearing, the present invention has selected the sliding bearing that can improve system stability.High-capacity and ultra high-speed motor pair
The high stability of rotor-bearing system, critical point vibration characteristics require it is higher, when rotor-bearing system is designed, carry out
Comprehensively rotor dynamics analysis, with reference to the high speed point service requirement and critical point distribution situation of rotor, while consider price because
Element, the present invention meet use requirement from four oily leaf watt sliding bearings.
Shaft extension end bearing 2 and non-shaft stretching end bearing 7 are forced oil lubricating system, in shaft extension end bearing 2 and non-shaft stretching end axle
A bearing oil inlet pipe 8 and a bearing flowline 9 is respectively equipped with the side wall for holding 7.High-speed electric expreess locomotive sliding bearing Leakage
It is difficult to solve, shaft extension end bearing 2 and non-shaft stretching end bearing 7 select A seating sliding bearing, compared with end cover type slip middle (center) bearing, Ke Yiyou
The lubricating oil that prevents of effect drains to motor internal, also reduces the bearing oil leak risk caused because of motor side negative pressure.In the present invention,
The front end face and rear end face of stator module 5 is also sealed by stator end cap 10, stator interior and bearing is separated, further
Prevent lubricating oil from affecting stator performance.
Those of ordinary skill in the art it should be appreciated that the embodiment of the above be intended merely to explanation the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (3)
1. a kind of bearing assembly of ultrahigh speed asynchronous motor, including shaft extension end bearing and non-shaft stretching end bearing, it is characterised in that：
Ultrahigh speed asynchronous motor includes underframe, on the underframe is provided with stator module, on the underframe, positioned at described fixed
Sub-component is respectively provided on two sides with a shaft extension end bearing block and a non-shaft stretching end bearing block；The shaft extension end bearing is arranged on
On the shaft extension end bearing block, its rotor connecting hole faces the central authorities of the front end face of the stator module；The non-shaft stretching end
Bearing is arranged on the non-shaft stretching end bearing block, and its rotor connecting hole faces the central authorities of the rear end face of the stator module；
The shaft extension end bearing and the non-shaft stretching end bearing are four oily leaf watt sliding bearings.
2. a kind of bearing assembly of ultrahigh speed asynchronous motor according to claim 1, it is characterised in that the axle stretch end
Bearing and the non-shaft stretching end bearing are forced oil lubricating system, in the shaft extension end bearing and the side of the non-shaft stretching end bearing
A bearing oil inlet pipe and a bearing flowline is respectively equipped with wall.
3. a kind of bearing assembly of ultrahigh speed asynchronous motor according to claim 1, it is characterised in that the stator pack
Stator interior and bearing are separated by the front end face and rear end face of part by stator end cap seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611192404.0A CN106533032A (en) | 2016-12-21 | 2016-12-21 | Bearing assembly of super-high-speed asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611192404.0A CN106533032A (en) | 2016-12-21 | 2016-12-21 | Bearing assembly of super-high-speed asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106533032A true CN106533032A (en) | 2017-03-22 |
Family
ID=58340348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611192404.0A Pending CN106533032A (en) | 2016-12-21 | 2016-12-21 | Bearing assembly of super-high-speed asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106533032A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852502Y (en) * | 2005-10-28 | 2006-12-27 | 佳木斯电机股份有限公司 | High-voltage flame-proof type high-speed self-lubricating three-phase asynchronous motor |
| CN101702544A (en) * | 2009-11-06 | 2010-05-05 | 溧阳福思宝高速机械有限公司 | Tilting-pad bearing built-in motor |
| CN202276229U (en) * | 2011-09-30 | 2012-06-13 | 西安胜唐鼓风机有限公司 | High-speed frequency conversion motor of small and medium power sliding bearings |
| CN103475135A (en) * | 2013-09-24 | 2013-12-25 | 西安泰富西玛电机有限公司 | Oil filtration prevention end cap used for super-power motor |
| CN103580414A (en) * | 2012-08-09 | 2014-02-12 | 武汉新威奇科技有限公司 | Three-phase asynchronous motor used for electric screw press |
-
2016
- 2016-12-21 CN CN201611192404.0A patent/CN106533032A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852502Y (en) * | 2005-10-28 | 2006-12-27 | 佳木斯电机股份有限公司 | High-voltage flame-proof type high-speed self-lubricating three-phase asynchronous motor |
| CN101702544A (en) * | 2009-11-06 | 2010-05-05 | 溧阳福思宝高速机械有限公司 | Tilting-pad bearing built-in motor |
| CN202276229U (en) * | 2011-09-30 | 2012-06-13 | 西安胜唐鼓风机有限公司 | High-speed frequency conversion motor of small and medium power sliding bearings |
| CN103580414A (en) * | 2012-08-09 | 2014-02-12 | 武汉新威奇科技有限公司 | Three-phase asynchronous motor used for electric screw press |
| CN103475135A (en) * | 2013-09-24 | 2013-12-25 | 西安泰富西玛电机有限公司 | Oil filtration prevention end cap used for super-power motor |
Non-Patent Citations (1)
| Title |
|---|
| 边志辉等: "离心压缩机轴承的技术研究", 《现代零部件》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |
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| WD01 | Invention patent application deemed withdrawn after publication |