CN104659966A - Alignment method for centers of magnetic forces of stator and rotor of large motor with box-type case - Google Patents
Alignment method for centers of magnetic forces of stator and rotor of large motor with box-type case Download PDFInfo
- Publication number
- CN104659966A CN104659966A CN201510116015.9A CN201510116015A CN104659966A CN 104659966 A CN104659966 A CN 104659966A CN 201510116015 A CN201510116015 A CN 201510116015A CN 104659966 A CN104659966 A CN 104659966A
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- CN
- China
- Prior art keywords
- rotor
- stator
- left end
- motor
- hand member
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- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000009423 ventilation Methods 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centring rotors within the stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
In order to make up the defects of the prior art, the invention provides an alignment method for centers of the magnetic forces of a stator and a rotor of a large motor with a box-type case using an end-cover type sliding bearing. The alignment method is characterized in that when the interior of the motor adopts a radial ventilation mode, a closed left-end air path is formed by left half parts of the rotor, an air cooler and the stator as well as a left-end axial-flow fan and a left-end air blocking ring at the left end of the inner part of the motor; a closed right-end air path is formed by right half parts of the rotor, an air cooler and the stator as well as a right-end axial-flow fan and a right-end air blocking ring at the right end of the inner part of the motor; if the centers of the magnetic forces of the stator and the rotor of the motor are not aligned to cause inequality of the axial movement values of the two ends of the rotor, the air resistance in the air path can be increased by a method of additionally arranging an adjusting baffle at an air inlet of one end of a top plate of the case so as to pull the rotor back to the normal position.
Description
(1) technical field
The present invention relates to a kind of high capacity motor rotor magnetic force center centering way, especially a kind of easy to learn, easy to operate, workload is few, the box-type casing high capacity motor rotor magnetic force center centering way of the use end cover type sliding bearing of instant effect.Belong to technical field of motor manufacture.
(2) background technology
At present, in high capacity motor manufacture process, if the high capacity motor of box-type casing structure uses end cover type sliding bearing, axially certain shifting amount is being left owing to establishing the rotor of clock motor, add upper casing different with the axial error that rotor is adding generation in man-hour, in the last general assembly stage, first after assembling, although fixed, the size of rotor is alignd substantially, but magnetic force center often not necessarily aligns, due to fixed during energising running, only a size 1 newton left and right axial magnetic pull can be produced between rotor core, it is fixed to make, the electromagnetic center automatic capturing punching of rotor core is neat, now rotor can be partial to one end of motor, the axle journal place of rotor and the axial thrust face of bearing shell can be made time serious to grind.Here it is, and said magnetic force center does not line up phenomenon.Want magnetic force center is alignd, existing way is the axial location of mobile stator core in casing, namely make the magnetic force center of stator core and the magnetic force center of rotor core rush together, but the center of the axial physical dimension of stator core and rotor core no longer rush together.The way of this mobile stator core is cumbersome, and difficulty is large, and workload is large, and time cost is high, if when situation is more serious, once-through operation differs surely centering completely, needs repeatedly operation repeatedly.
(3) summary of the invention
The present invention compensate for the deficiencies in the prior art, provides the box-type casing high capacity motor rotor magnetic force center centering way of brand-new employing end cover type sliding bearing.Principle is when the magnetic force center of stator core and the magnetic force center of rotor core do not rush neat, fixed, axial electromagnetic force pulling force between rotor is general very little, only less than about 1 newton, when motor internal adopts radial ventilation mode, two ends of rotor respectively has a fan (aerofoil fan is easier to understand) to the middle air blast of motor, if when rotor departs to right-hand member, left end then in motor in wind path increases a regulating fender, a windage is left provided, this windage can pull rotor vertically left end move, when motor is normally run, the axial movement value two ends of rotor are equal, vice versa.
Its beneficial effect be easy to learn, easy to operate, workload is few, time cost is low, instant effect.
(4) accompanying drawing explanation
Accompanying drawing is box-type casing high capacity motor rotor magnetic force center centering way schematic diagram of the present invention.
Wherein: 1 rotor, 2 stators, 3 end cover type sliding bearings, 4 left end shaft flow fans, 5 left end fan shrouds, 6 regulating fenders, 7 air coolers, 8 casing top boards, 9 right-hand member fan shrouds, 10 right-hand member aerofoil fans.
(5) embodiment
Be a kind of specific embodiment of box-type casing high capacity motor rotor magnetic force center centering way of the present invention as shown in drawings.Comprise: rotor (1), stator (2), end cover type sliding bearing (3), left end shaft flow fan (4), left end fan shroud (5), regulating fender (6), air cooler (7), casing top board (8), right-hand member fan shroud (9) and right-hand member aerofoil fan (10).When motor internal adopts radial ventilation mode, motor internal at left end by the left-half of rotor (1), air cooler (7) and stator (2) and left end shaft flow fan (4) and the closed left end wind path of left end fan shroud (5) formation one; Motor internal at right-hand member by the right half part of rotor (1), air cooler (7) and stator (2) and right-hand member aerofoil fan (10) and the closed right-hand member wind path of right-hand member fan shroud (9) formation one; If when the design of motor, processing and assembling are correct, air quantity, blast and windage in two symmetrical wind paths should be equal and opposite in directions, direction is contrary, and the magnetic force center of rotor (1) and stator (2) also rushes neat, and now the axial movement value of rotor (1) is also equal.
When motor occurs larger error when processing and assemble, or when the iron core pressure mounting elasticity of rotor (1) and stator (2) is different, the magnetic force center of rotor (1) and stator (2) will be caused not rush together, the axial magnetic pull that when motor runs, between rotor (1) and stator (2), generation one is very little, make rotor (1) be partial to one end, the thrust surface of the shaft shoulder and sliding bearing produces and rubs and cause vibration.
If when rotor (1) departs to right-hand member, then in motor left end, increase a regulating fender (6) in wind path and be screwed, particular location is in the air inlet (its size put in air inlet can regulate) of casing top board (8) left end.A windage is left provided, this windage can pull rotor vertically left end move, repeated multiple times careful regulating fender (6) puts in the size in air inlet, until when motor normally runs, the axial movement value two ends of rotor are equal, and vice versa.
Claims (1)
1. the present invention relates to a kind of box-type casing high capacity motor rotor magnetic force center centering way, comprise: rotor (1), stator (2), end cover type sliding bearing (3), left end shaft flow fan (4), left end fan shroud (5), regulating fender (6), air cooler (7), casing top board (8), right-hand member fan shroud (9) and right-hand member aerofoil fan (10), wherein, when motor internal adopts radial ventilation mode, motor internal passes through rotor at left end, the left-half of air cooler and stator and left end shaft flow fan and left end fan shroud form a closed left end wind path, a closed right-hand member wind path is formed by the right half part of rotor, air cooler and stator and right-hand member aerofoil fan and right-hand member fan shroud at right-hand member, when the rotor of motor and the magnetic force center of stator do not rush neat, the axial movement value two ends of rotor may be caused unequal, if when rotor is large to right-hand member axial movement value, the windage in left end wind path can be increased by the method installing regulating fender (6) in the air inlet of casing top board (8) left end additional, rotor is withdrawn into normal position to left end, vice versa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510116015.9A CN104659966B (en) | 2015-03-17 | 2015-03-17 | Alignment method for centers of magnetic forces of stator and rotor of large motor with box-type case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510116015.9A CN104659966B (en) | 2015-03-17 | 2015-03-17 | Alignment method for centers of magnetic forces of stator and rotor of large motor with box-type case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104659966A true CN104659966A (en) | 2015-05-27 |
| CN104659966B CN104659966B (en) | 2017-01-11 |
Family
ID=53250766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510116015.9A Expired - Fee Related CN104659966B (en) | 2015-03-17 | 2015-03-17 | Alignment method for centers of magnetic forces of stator and rotor of large motor with box-type case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104659966B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010023954A1 (en) * | 2008-08-29 | 2010-03-04 | 三菱重工業株式会社 | Method for adjusting balance of rotor, rotor, and motor equipped with the rotor |
| CN102324816A (en) * | 2011-04-19 | 2012-01-18 | 西安交通大学 | An Adjustment Mechanism Using Piezoelectric Crystals for Rotor Alignment |
| CN202940713U (en) * | 2012-12-06 | 2013-05-15 | 南阳防爆集团股份有限公司 | Large-capacity high-voltage four-level explosion-proof three-phase asynchronous motor |
| CN103453829A (en) * | 2013-09-12 | 2013-12-18 | 中国能源建设集团天津电力建设公司 | Method for measuring sliding bearing motor magnetic force central position |
| CN203434791U (en) * | 2013-09-09 | 2014-02-12 | 中达电机股份有限公司 | Low-voltage large-power motor with box type base in IC611 cooling manner |
| CN203747572U (en) * | 2013-11-29 | 2014-07-30 | 南阳防爆集团股份有限公司 | Inner air path flow-guide structure preventing axial endplay of motor |
| CN203883649U (en) * | 2014-05-21 | 2014-10-15 | 台州市弘跃机电有限公司 | Mounting structure and special assembling tool for bearingless servo motor |
| CN203984162U (en) * | 2014-05-02 | 2014-12-03 | 宁波市成大机械研究所 | Absolutely empty cold anticyclone high-efficiency electric motor |
-
2015
- 2015-03-17 CN CN201510116015.9A patent/CN104659966B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010023954A1 (en) * | 2008-08-29 | 2010-03-04 | 三菱重工業株式会社 | Method for adjusting balance of rotor, rotor, and motor equipped with the rotor |
| CN102324816A (en) * | 2011-04-19 | 2012-01-18 | 西安交通大学 | An Adjustment Mechanism Using Piezoelectric Crystals for Rotor Alignment |
| CN202940713U (en) * | 2012-12-06 | 2013-05-15 | 南阳防爆集团股份有限公司 | Large-capacity high-voltage four-level explosion-proof three-phase asynchronous motor |
| CN203434791U (en) * | 2013-09-09 | 2014-02-12 | 中达电机股份有限公司 | Low-voltage large-power motor with box type base in IC611 cooling manner |
| CN103453829A (en) * | 2013-09-12 | 2013-12-18 | 中国能源建设集团天津电力建设公司 | Method for measuring sliding bearing motor magnetic force central position |
| CN203747572U (en) * | 2013-11-29 | 2014-07-30 | 南阳防爆集团股份有限公司 | Inner air path flow-guide structure preventing axial endplay of motor |
| CN203984162U (en) * | 2014-05-02 | 2014-12-03 | 宁波市成大机械研究所 | Absolutely empty cold anticyclone high-efficiency electric motor |
| CN203883649U (en) * | 2014-05-21 | 2014-10-15 | 台州市弘跃机电有限公司 | Mounting structure and special assembling tool for bearingless servo motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104659966B (en) | 2017-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Xin Inventor before: Li Xianming Inventor before: Li Leshui Inventor before: Li Yapeng |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: 108, room 431, No. 511400 East Ring Road, Shiqiao street, Guangzhou, Guangdong, Panyu District Patentee after: Guangzhou super mechanical & Electrical Equipment Co., Ltd. Address before: 315000 Zhejiang Province, Ningbo City Jiangdong District Jiangnan Road No. 599 Patentee before: Ningbo City becomes large mechanical investigations institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20180317 |