CN109980874A - The dynamically balanced design method of motor rotor component - Google Patents
The dynamically balanced design method of motor rotor component Download PDFInfo
- Publication number
- CN109980874A CN109980874A CN201711450327.9A CN201711450327A CN109980874A CN 109980874 A CN109980874 A CN 109980874A CN 201711450327 A CN201711450327 A CN 201711450327A CN 109980874 A CN109980874 A CN 109980874A
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- China
- Prior art keywords
- rotor assembly
- grams
- unbalance
- rotor
- dynamically balanced
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Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000013461 design Methods 0.000 title claims abstract description 20
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 28
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 14
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 14
- 238000012937 correction Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 229930091051 Arenine Natural products 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of dynamically balanced design methods of motor rotor component, this method is by D modeling tool, Baking soda is removed by processing balance on machine shaft, it will be on the theoretical centre of gravity adjustment to rotary shaft of rotor assembly, pass through stable processing again, manufacturing process produces several motor rotor components, measure its initial unbalance grams, record the amount of unbalance position distribution and uneven grams of several motor rotor components, according to the data measured, the manufacture craft and adjustment balance that optimize motor rotor component go the size of Baking soda, stablize the initial unbalance grams of rotor assembly in the range of correctable, to simplify the dynamically balanced correction course of rotor assembly, improve the efficiency of dynamic balance calibration.The defect that this method overcomes conventional motors rotor dynamic balancing to correct facilitates the correction for realizing rotor dynamic balancing, improves dynamically balanced correction efficiency and reliability, reduces dynamic balance calibration cost.
Description
Technical field
The present invention relates to a kind of dynamically balanced design methods of motor rotor component.
Background technique
Imbalance be cause electric motor rotor vibration excessive and generate noise the main reason for one of, directly affect motor
Working performance, noise and service life, and it is higher for motor speed, uneven required precision, then entire rotor is moved
Balance requirement is higher, and the uneven grams of permission is with regard to smaller.The driving motor that New-energy electric vehicle uses is mostly high revolving speed
Motor, and have strict demand to noise, therefore particularly important to the dynamically balanced design of rotor.
The rotor of most motor all uses oblique pole scheme, causes the initial unbalance grams of entire rotor excessive, it is difficult to right
Rotor carries out dynamic balance calibration, and the usually used balance of copper block that density is higher, cost is more expensive, which is used as to be installed on every magnetic balance plate, to be turned
Sub- outside, the thickness of balance of copper block are generally 10~15mm, a certain number of go repeated hole to injustice by opening up on balance weight
Measurement is finely adjusted, to meet the requirement for dynamic balance of rotor.Its disadvantage is that operating procedure is more, and activity time is long, low efficiency,
It is at high cost, the reliability of balance weight it is difficult to ensure that, once the rotor that falls off will be stuck, balance weight, which is not fixed firmly, can also generate volume
Outer electromechanics noise；And balance weight volume is big, weight weight, material expensive improves production cost.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of dynamically balanced design method of motor rotor component, this method
The defect for overcoming conventional motors rotor dynamic balancing to correct facilitates the correction for realizing rotor dynamic balancing, improves dynamically balanced correction effect
Rate and reliability reduce dynamic balance calibration cost.
In order to solve the above technical problems, the dynamically balanced design method of motor rotor component of the present invention includes the following steps:
Step 1: by being built comprising machine shaft, every the motor rotor component of magnetic balance plate, magnet steel using D modeling tool
Mould makes machine shaft, arranges every magnetic balance plate, magnet steel relative to axisymmetry, and the processing balance duplicate removal on machine shaft
Slot；
Step 2: crossing rotary shaft in D modeling tool and establishing three-dimensional system of coordinate, rotor assembly is measured relative to the coordinate system
Barycentric coodinates, the size of Baking soda is gone by adjusting balance, so that the theoretical center of gravity of rotor assembly is on rotation axis；
Scheme to fabricate several rotor assembly Step 3: going out by D modeling tool, measures the direction of its initial unbalance,
And grams, defining one of direction is positive direction, and the amount of unbalance grams of positive direction is positive number, then the amount of unbalance of opposite direction
Grams is negative；
Step 4: the average value of several rotor assembly imbalance grams is close to zero or not near zero, and every rotor assembly
Amount of unbalance is in adjustable range, then the dynamic balancing of motor rotor component meets design requirement；
Step 5: the average value of several rotor assembly imbalance grams is close to zero, but there is the amount of unbalance of individual rotor component not
In adjustable range, then by improve rotor assembly encapsulating perhaps the consistency of injection molding or increase every magnetic balance plate duplicate removal
Thickness at radius, or it will be changed to the higher material of density every magnetic balance plate, improve the adjustable of rotor assembly amount of unbalance
Whole range；
Step 6: the average value of several rotor assembly imbalance grams is not near zero, the amount of unbalance of every rotor assembly is equal
Not in adjustable range, the average value in the weighting direction and weighting of several rotor assembly is counted, is adjusted according to statistical result flat
Weighing apparatus goes the size of Baking soda, makes the average value infinite approach zero of several rotor assembly imbalance grams, until meeting design requirement.
Further, when the average value of several rotor assembly imbalance grams is not near zero, but every rotor assembly is not
When aequum is in adjustable range, the size of Baking soda is gone by adjusting balance, makes several rotor assembly imbalance grams
Average value infinite approach zero, to improve the dynamically balanced correction efficiency of every rotor assembly.
Further, several rotor assembly are nine.
Further, described every magnetic balance plate is aluminium alloy plate, and thickness is 5~8mm.
Since the dynamically balanced design method of motor rotor component of the present invention uses above-mentioned technical proposal, i.e., this method is by three-dimensional
Modeling tool removes Baking soda by processing balance on machine shaft, by the theoretical centre of gravity adjustment to rotary shaft of rotor assembly, then
Several motor rotor components are produced by stable processing, manufacturing process, its initial unbalance grams is measured, records several electricity
The amount of unbalance position distribution and imbalance grams of machine rotor component optimize motor rotor component according to the data measured
Manufacture craft and adjustment balance go the size of Baking soda, stablize the initial unbalance grams of rotor assembly in the range of correctable
It is interior, to simplify the dynamically balanced correction course of rotor assembly, improve the efficiency of dynamic balance calibration.This method overcomes conventional motors to turn
The defect of sub- dynamic balance calibration facilitates the correction for realizing rotor dynamic balancing, improves dynamically balanced correction efficiency and reliability, reduces
Dynamic balance calibration cost.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
Fig. 1 is the dynamically balanced design method schematic diagram of motor rotor component of the present invention.
Specific embodiment
Embodiment is as shown in Figure 1, the dynamically balanced design method of motor rotor component of the present invention includes the following steps:
Step 1: by comprising machine shaft 11, every magnetic balance plate 12, magnet steel 13 motor rotor component 1 use three-dimensional modeling work
Tool is modeled, and is made machine shaft 11, is arranged every magnetic balance plate 12, magnet steel 13 relative to axisymmetry, and in machine shaft
Processing balance removes Baking soda 14 on 11；
Step 2: crossing rotary shaft in D modeling tool and establishing three-dimensional system of coordinate, rotor assembly 1 is measured relative to the coordinate
The barycentric coodinates of system go the size of Baking soda 14 by adjusting balance, so that the theoretical center of gravity of rotor assembly 1 is on rotation axis；
Scheme to fabricate several rotor assembly 1 Step 3: going out by D modeling tool, measures the direction of its initial unbalance,
And grams, defining one of direction is positive direction, and the amount of unbalance grams of positive direction is positive number, then the amount of unbalance of opposite direction
Grams is negative；
Step 4: the average value of the uneven grams of several rotor assembly 1 is close to zero or not near zero, and every rotor assembly 1
Amount of unbalance in adjustable range, then the dynamic balancing of motor rotor component 1 meets design requirement；Adjustable range is
Balance the executable initial unbalance, range of process, adjustable range mainly by the material and thickness effect every magnetic balance plate,
It is thicker every magnetic balance plate, density of material is bigger, adjustable extent is bigger, the punching to rotor punching outer diameter < φ 200, adjustable extent
Generally ± 7 grams, if being punched by force every on magnetic balance plate, it will lead to every magnetic balance plate strength reduction, there is the wind of Strength Failure
Danger, therefore require initial unbalance, will be in adjustable extent；
Step 5: the average value of the uneven grams of several rotor assembly 1 is close to zero, but there is the amount of unbalance of individual rotor component 1
Not in adjustable range, then by improve 1 encapsulating of rotor assembly perhaps the consistency of injection molding or increase every magnetic balance plate 12
Thickness at duplicate removal radius, or it will be changed to the higher material of density every magnetic balance plate 12, improve 1 amount of unbalance of rotor assembly
Adjustable range；
Step 6: the average value of the uneven grams of several rotor assembly 1 is near zero, the amount of unbalance of every rotor assembly 1
Not in adjustable range, the average value in the weighting direction and weighting of several rotor assembly 1 is counted, is adjusted according to statistical result
Balance goes the size of Baking soda 14, makes the average value infinite approach zero of the uneven grams of several rotor assembly 1, wants until meeting design
It asks.
Preferably, when the average value of the uneven grams of several rotor assembly 1 is not near zero, but every rotor assembly 1
When amount of unbalance is in adjustable range, the size of Baking soda 14 is gone by adjusting balance, makes 1 uneven gram of several rotor assembly
Several average value infinite approach zero, to improve the dynamically balanced correction efficiency of every rotor assembly 1.Required can adjust can also be reduced
Range, to reduce the weight and cost every magnetic balance plate.
Preferably, several rotor assembly 1 are nine.
Preferably, described every magnetic balance plate 12 is aluminium alloy plate, and thickness is 5~8mm.
Present method solves permanent magnet synchronous motor skewed pole rotor component initial unbalance grams is excessive, uneven grams is difficult to
The problem being corrected in claimed range.The oriented average value of initial unbalance grams is smaller, the quantity in moved balance correction hole
Will be fewer, the efficiency of dynamic balance calibration will be higher.Therefore pass through this method for the initial unbalance grams tune of rotor assembly
In school to adjustable range, the dynamically balanced correction of rotor assembly is realized to facilitate.Using this method every magnetic balance plate materials
Less, density of material is small, small in size, light-weight, material is cheap, to reduce overall cost, and needed for dynamic balance calibration process
Punching quantity is few, and dynamic balance calibration activity time is short, corrects high-efficient, high reliablity.
Claims (4)
1. a kind of dynamically balanced design method of motor rotor component, it is characterised in that this method includes the following steps:
Step 1: by being built comprising machine shaft, every the motor rotor component of magnetic balance plate, magnet steel using D modeling tool
Mould makes machine shaft, arranges every magnetic balance plate, magnet steel relative to axisymmetry, and the processing balance duplicate removal on machine shaft
Slot；
Step 2: crossing rotary shaft in D modeling tool and establishing three-dimensional system of coordinate, rotor assembly is measured relative to the coordinate system
Barycentric coodinates, the size of Baking soda is gone by adjusting balance, so that the theoretical center of gravity of rotor assembly is on rotation axis；
Scheme to fabricate several rotor assembly Step 3: going out by D modeling tool, measures the direction of its initial unbalance,
And grams, defining one of direction is positive direction, and the amount of unbalance grams of positive direction is positive number, then the amount of unbalance of opposite direction
Grams is negative；
Step 4: the average value of several rotor assembly imbalance grams is close to zero or not near zero, and every rotor assembly
Amount of unbalance is in adjustable range, then the dynamic balancing of motor rotor component meets design requirement；
Step 5: the average value of several rotor assembly imbalance grams is close to zero, but there is the amount of unbalance of individual rotor component not
In adjustable range, then by improve rotor assembly encapsulating perhaps the consistency of injection molding or increase every magnetic balance plate duplicate removal
Thickness at radius, or it will be changed to the higher material of density every magnetic balance plate, improve the adjustable of rotor assembly amount of unbalance
Whole range；
Step 6: the average value of several rotor assembly imbalance grams is not near zero, the amount of unbalance of every rotor assembly is equal
Not in adjustable range, the average value in the weighting direction and weighting of several rotor assembly is counted, is adjusted according to statistical result flat
Weighing apparatus goes the size of Baking soda, makes the average value infinite approach zero of several rotor assembly imbalance grams, until meeting design requirement.
2. the dynamically balanced design method of motor rotor component according to claim 1, it is characterised in that: when several rotor sets
The average value of part imbalance grams leads to not near zero, but when the amount of unbalance of every rotor assembly is in adjustable range
Toning balance goes the size of Baking soda, makes the average value infinite approach zero of several rotor assembly imbalance grams, to improve every
The dynamically balanced correction efficiency of rotor assembly.
3. the dynamically balanced design method of motor rotor component according to claim 1 or 2, it is characterised in that: described several
Rotor assembly is nine.
4. the dynamically balanced design method of motor rotor component according to claim 1 or 2, it is characterised in that: described every magnetic
Balance plate is aluminium alloy plate, and thickness is 5~8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450327.9A CN109980874B (en) | 2017-12-27 | 2017-12-27 | Method for designing dynamic balance of motor rotor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450327.9A CN109980874B (en) | 2017-12-27 | 2017-12-27 | Method for designing dynamic balance of motor rotor assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109980874A true CN109980874A (en) | 2019-07-05 |
| CN109980874B CN109980874B (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711450327.9A Active CN109980874B (en) | 2017-12-27 | 2017-12-27 | Method for designing dynamic balance of motor rotor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109980874B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676013A (en) * | 2021-07-23 | 2021-11-19 | 苏州朗高电机有限公司 | Dynamic balance calibration method for motor rotor with brake of permanent magnet variable pitch motor |
| CN116388485A (en) * | 2023-04-25 | 2023-07-04 | 广东高畅智能液压科技有限公司 | Sealing method of rotor and rotor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5867892A (en) * | 1995-08-17 | 1999-02-09 | Globe Products Inc. | Method and apparatus for rotationally orienting an armature shaft |
| CN1625829A (en) * | 2002-04-19 | 2005-06-08 | 朴桂正 | Method for automatically compensating for unbalance correction position and correction amount in balyncing machine |
| CN102832766A (en) * | 2012-08-30 | 2012-12-19 | 南阳微特防爆电机有限公司 | Dynamic balance assistive device and dynamic balance method for motor rotor |
| EP2623946A2 (en) * | 2012-01-31 | 2013-08-07 | Hofmann Mess- und Auswuchttechnik GmbH & Co. KG | Method and device for balancing rotors |
| CN106341012A (en) * | 2015-07-06 | 2017-01-18 | 丰田自动车株式会社 | Balance correction device for rotor |
-
2017
- 2017-12-27 CN CN201711450327.9A patent/CN109980874B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5867892A (en) * | 1995-08-17 | 1999-02-09 | Globe Products Inc. | Method and apparatus for rotationally orienting an armature shaft |
| CN1625829A (en) * | 2002-04-19 | 2005-06-08 | 朴桂正 | Method for automatically compensating for unbalance correction position and correction amount in balyncing machine |
| EP2623946A2 (en) * | 2012-01-31 | 2013-08-07 | Hofmann Mess- und Auswuchttechnik GmbH & Co. KG | Method and device for balancing rotors |
| CN102832766A (en) * | 2012-08-30 | 2012-12-19 | 南阳微特防爆电机有限公司 | Dynamic balance assistive device and dynamic balance method for motor rotor |
| CN106341012A (en) * | 2015-07-06 | 2017-01-18 | 丰田自动车株式会社 | Balance correction device for rotor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676013A (en) * | 2021-07-23 | 2021-11-19 | 苏州朗高电机有限公司 | Dynamic balance calibration method for motor rotor with brake of permanent magnet variable pitch motor |
| CN113676013B (en) * | 2021-07-23 | 2024-06-07 | 苏州朗高电机有限公司 | Motor rotor dynamic balance calibration method for permanent magnet variable pitch motor with brake |
| CN116388485A (en) * | 2023-04-25 | 2023-07-04 | 广东高畅智能液压科技有限公司 | Sealing method of rotor and rotor |
| CN116388485B (en) * | 2023-04-25 | 2023-11-17 | 广东高畅智能液压科技有限公司 | Sealing method of rotor and rotor |
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| Publication number | Publication date |
|---|---|
| CN109980874B (en) | 2021-02-02 |
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