CN106787533A - A kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor - Google Patents
A kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor Download PDFInfo
- Publication number
- CN106787533A CN106787533A CN201611190806.7A CN201611190806A CN106787533A CN 106787533 A CN106787533 A CN 106787533A CN 201611190806 A CN201611190806 A CN 201611190806A CN 106787533 A CN106787533 A CN 106787533A
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- Prior art keywords
- rotor
- balancing
- dynamic balancing
- asynchronous motor
- speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
- H02K15/165—Balancing the rotor
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor, using advanced design analysis means, tester and process meanses, dynamic balancing fundamental characteristics and the balancing frame position to be jumped of rotor are determined that in the design phase, then the test data before being debugged with dynamic balancing is instructed, and implements the dynamic balancing debugging prediction scheme of system.As such super high speed motor dynamic balancing adjustment method, the flow and dynamic balancing debugging theory of its " design → analysis optimization design → test checking → dynamic balancing debugging → instruct new design " be the present invention mainly the characteristics of.
Description
Technical field
The present invention relates to a kind of rotor dynamic balancing debugging side of the ultrahigh speed asynchronous motor for motor manufacture field
Method.
Background technology
The dynamic balancing debugging of motor is a key technology.Do not possess the dynamically balanced equipment of high-quality and there is equipment zero
The defect such as part easily weares and teares, noise is big, service life of equipment is short.And for ultrahigh speed asynchronous motor, at rotor
In the state of high speed rotation, if the dynamic balancing of the son that takes a turn for the better cannot be debugged, more serious influence can be caused to electric motor assembly.
The content of the invention
It is an object of the invention to provide a kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor, it can be debugged
The rotor dynamic balancing level of ultrahigh speed asynchronous motor, improves dynamic balancing debugging efficiency and success rate, is ultrahigh speed asynchronous electric
The important foundation of design and the manufacture of machine.
Realizing a kind of technical scheme of above-mentioned purpose is：A kind of rotor dynamic balancing debugging side of ultrahigh speed asynchronous motor
Method, comprises the following steps：
Step S1, presetting step carries out virtual prototyping dynamical analysis in design to rotor structure, and test obtains rotor
Intrinsic frequency and the critical speed distribution of structure, including first critical speed and second order critical speed, and reserved simultaneously on rotor
Determine balancing frame position；
Step S2, just fills step, according to the test result of step S1, adds in the balancing frame reserved location of rotor structure finished product
Dress balancing frame；
Step S3, initial adjustment step opens rotor structure, interval in first critical speed according to the test result of step S1
Initial adjustment balance weight on interior adjustment balancing frame, makes the dynamic balancing level of rotor structure reach stability requirement；
Step S4, deep pacing is rapid, lifts rotor structure rotating speed, until 8200 revs/min of design requirement is reached, and in rotating speed
Deep balancing block in interval on adjustment balancing frame, makes the dynamic balancing level of rotor structure reach stability requirement.
Further, the quality of the initial adjustment balance weight is more than the deep balancing block.
Further, it is necessary to step up during the step S3 initial adjustments step and step S4 depth pacing are rapid
Rotor structure rotating speed, carries out the dynamic balancing debugging of multiple many balanced surfaces.
Further, the unshakable in one's determination of the rotor structure is respectively arranged at two ends with first balancing frame.
Further, it is respectively equipped with second balancing frame on the outside of two first balancing frames.
Further, balancing frame at a shaft extension is provided with the shaft extension of the rotor structure.
Further, the rated power 1500kW of the ultrahigh speed asynchronous motor, 8200 revs/min of maximum speed, speed governing
Scope is 180-8200 revs/min.
A kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor of the invention, hand is analyzed using advanced design
Section, tester and process meanses, it is ensured that rotor-bearing system dynamics characteristic is excellent, dynamic balancing has test data to do before debugging
Instruct, dynamic balancing debugging is that have system schema and prediction scheme.As such super high speed motor dynamic balancing adjustment method, its " design →
This flow of analysis optimization design → test checking → dynamic balancing debugging → instruct new design " and dynamic balancing debugging theory are this hairs
Bright main the characteristics of.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the rotor of the rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor of the invention
Figure.
Specific embodiment
In order to be able to preferably understand technical scheme, below by specifically embodiment and with reference to accompanying drawing
It is described in detail：
A kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor of the invention, with rated power 1500kW, most
8200 revs/min of rotating speed high, speed adjustable range is that 180-8200 revs/min of ultrahigh speed asynchronous machine is test basis.Its rotor structure is such as
Described in Fig. 1, including balancing frame 2, shaft extension end bearing 3, the second balancing frame 4, the first balancing frame 5, rotor core 6 at shaft extension 1, shaft extension
With non-shaft stretching end bearing 7.Support member is supported in shaft extension end bearing 3 and the position of non-shaft stretching end bearing 7 to bearing；Put down at shaft extension
Weighing apparatus disk 2 is arranged in shaft extension 1；Rotor core 6 is arranged on rotor structure middle part；Second is arranged symmetrically in the rotor core left and right sides
Balancing frame 4 and two the first balancing frames 5.
Test comprises the following steps：
Step S1, presetting step carries out virtual prototyping dynamical analysis in design to rotor structure, and test obtains rotor
The intrinsic frequency of structure closes critical speed distribution, including first critical speed and second order critical speed, and is reserved on rotor true
The particular location of fixed each balancing frame.Balancing frame 2, the second balancing frame 4, the design of the first balancing frame 5 and layout are closed very much at shaft extension
Key.Rotor structure be immunity rotor structure, first critical speed in speed adjustable range, and at bearing Secondary critical specd also in speed governing
In the range of, while maximum speed is high, speed adjustable range is broad, to meet in vibration characteristics at a high speed with full speed adjustable range internal rotor,
Repeatedly, it is inevitable that many balanced surfaces are balanced debugging.Therefore, balancing frame as described above is set, is dynamically balanced success
Debugging is ensured.
Step S2, just fills step, according to the test result of step S1, adds in the balancing frame reserved location of rotor structure finished product
Dress balancing frame.
Step S3, initial adjustment step opens rotor structure, interval in first critical speed according to the test result of step S1
Initial adjustment balance weight on interior adjustment balancing frame, makes the dynamic balancing level of rotor structure reach stability requirement；
Step S4, deep pacing is rapid, lifts rotor structure rotating speed, until 8200 revs/min of design requirement is reached, and in rotating speed
Deep balancing block in interval on adjustment balancing frame, makes the dynamic balancing level of rotor structure reach stability requirement.
At shaft extension balancing frame 2, the second balancing frame 4, the first balancing frame 5 purchase Different Weight balance gauge block it is necessary.
In different rotating speeds, different balance accuracy grade debugging process, it is necessary to the balance weight of addition it is important be it is different, in the slow-speed of revolution and
During first debugging, it may be necessary to add larger mass balance block；But in high speed, rotor-support-foundation system more sensitivity is, it is necessary to finely tune dynamic
Balance, and add the balance weight of less quality.Therefore, the quality of initial adjustment balance weight is more than deep balancing block.Step S3 just pacing
During rapid and step S4 depth pacing is rapid, rotor structure rotating speed is stepped up, carry out the dynamic balancing debugging of multiple many balanced surfaces.
Dynamic balancing adjustment method proposed by the present invention, first, it is desirable in the primary just intervention of rotor-bearing structure design, knot
Electric machine speed regulation range of operation and maximum speed requirement are closed, rotor dynamics analysis is carried out, it is ensured that motor is steady under high-speed working condition
The reasonability of qualitative and critical speed distribution；Secondly, according to rotor dynamics result of calculation, rotor-bearing system type selecting is optimized
With design, corresponding balancing frame is reserved on rotor；Finally, after the completion of rotor manufacture, by the intrinsic of Instrument measuring rotor structure
Mode, with reference to the critical Speed Calculation situation of early stage, instructs dynamic balancing debugging efforts, in dynamic balancing debugging, rationally utilizes and turns
Balancing frame layout in minor structure, considers the critical speed and speed adjustable range of rotor structure, by vibration values debugging to standard
In claimed range, there is certain directive significance to similar high speed rotor of motor or rotor with new structure dynamic balancing debugging.
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 being limitation of the invention, as long as in spirit of the invention, the change to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (7)
1. a kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor, it is characterised in that comprise the following steps：
Step S1, presetting step carries out virtual prototyping dynamical analysis in design to rotor structure, and test obtains rotor structure
Intrinsic frequency and critical speed distribution, including first critical speed and second order critical speed, and reserve and determine on rotor
Balancing frame position；
Step S2, just fills step, according to the test result of step S1, installs flat additional in the balancing frame reserved location of rotor structure finished product
Weighing apparatus disk；
Step S3, initial adjustment step opens rotor structure, according to the test result of step S1, is adjusted in first critical speed is interval
Initial adjustment balance weight on balance disk, makes the dynamic balancing level of rotor structure reach stability requirement；
Step S4, deep pacing is rapid, lifts rotor structure rotating speed, until 8200 revs/min of design requirement is reached, and it is interval in rotating speed
Deep balancing block on interior adjustment balancing frame, makes the dynamic balancing level of rotor structure reach stability requirement.
2. the rotor dynamic balancing adjustment method of a kind of ultrahigh speed asynchronous motor according to claim 1, it is characterised in that
The quality of the initial adjustment balance weight is more than the deep balancing block.
3. the rotor dynamic balancing adjustment method of a kind of ultrahigh speed asynchronous motor according to claim 1, it is characterised in that
, it is necessary to step up rotor structure rotating speed during the step S3 initial adjustments step and step S4 depth pacing are rapid, carry out
The dynamic balancing debugging of multiple many balanced surfaces.
4. the rotor dynamic balancing adjustment method of a kind of ultrahigh speed asynchronous motor according to claim 1, it is characterised in that
The unshakable in one's determination of the rotor structure is respectively arranged at two ends with first balancing frame.
5. the rotor dynamic balancing adjustment method of a kind of ultrahigh speed asynchronous motor according to claim 4, it is characterised in that
Second balancing frame is respectively equipped with the outside of two first balancing frames.
6. the rotor dynamic balancing adjustment method of a kind of ultrahigh speed asynchronous motor according to claim 1, it is characterised in that
Balancing frame at a shaft extension is provided with the shaft extension of the rotor structure.
7. the rotor dynamic balancing adjustment method of a kind of ultrahigh speed asynchronous motor according to claim 1, it is characterised in that
The rated power 1500kW of the ultrahigh speed asynchronous motor, 8200 revs/min of maximum speed, speed adjustable range be 180-8200 turn/
Point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190806.7A CN106787533A (en) | 2016-12-21 | 2016-12-21 | A kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190806.7A CN106787533A (en) | 2016-12-21 | 2016-12-21 | A kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor |
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| CN106787533A true CN106787533A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611190806.7A Pending CN106787533A (en) | 2016-12-21 | 2016-12-21 | A kind of rotor dynamic balancing adjustment method of ultrahigh speed asynchronous motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905731A (en) * | 2019-11-14 | 2020-03-24 | 许昌许继风电科技有限公司 | Wind driven generator, dynamic balance method of wind driven generator and dynamic balance device |
| CN114221500A (en) * | 2021-11-11 | 2022-03-22 | 中船重工电机科技股份有限公司 | Four-side dynamic balancing method for flexible rotor of 2-pole asynchronous motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130257189A1 (en) * | 2010-09-29 | 2013-10-03 | Steffen Blum | Balanced rotor for a rotation machine, and method for balancing a rotor |
| CN105429403A (en) * | 2015-11-30 | 2016-03-23 | 天津市松正电动汽车技术股份有限公司 | Motor rotor dynamic balance structure and rotor dynamic balance adjusting method |
| CN106208510A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | Magnetic suspension motor rotor part and online ballasting method thereof |
-
2016
- 2016-12-21 CN CN201611190806.7A patent/CN106787533A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130257189A1 (en) * | 2010-09-29 | 2013-10-03 | Steffen Blum | Balanced rotor for a rotation machine, and method for balancing a rotor |
| CN105429403A (en) * | 2015-11-30 | 2016-03-23 | 天津市松正电动汽车技术股份有限公司 | Motor rotor dynamic balance structure and rotor dynamic balance adjusting method |
| CN106208510A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | Magnetic suspension motor rotor part and online ballasting method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905731A (en) * | 2019-11-14 | 2020-03-24 | 许昌许继风电科技有限公司 | Wind driven generator, dynamic balance method of wind driven generator and dynamic balance device |
| CN114221500A (en) * | 2021-11-11 | 2022-03-22 | 中船重工电机科技股份有限公司 | Four-side dynamic balancing method for flexible rotor of 2-pole asynchronous motor |
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Application publication date: 20170531 |