CN106840522A - Elongated flexible rotor high speed dynamic deflection control method - Google Patents
Elongated flexible rotor high speed dynamic deflection control method Download PDFInfo
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- CN106840522A CN106840522A CN201611099959.0A CN201611099959A CN106840522A CN 106840522 A CN106840522 A CN 106840522A CN 201611099959 A CN201611099959 A CN 201611099959A CN 106840522 A CN106840522 A CN 106840522A
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- rotor
- dynamic deflection
- balance
- crest
- elongated flexible
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 238000005303 weighing Methods 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating imbalance
- G01M1/34—Compensating imbalance by removing material from the body to be tested, e.g. from the tread of tyres
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
Abstract
The present invention relates to a kind of elongated flexible rotor high speed dynamic deflection control method, by installing balance snap ring and balance gasket, the authenticity and stability of dynamic balancing measurement are improved, and the dynamic deflection index of rotor is converted into amount of unbalance index；By the corresponding relation for setting up amount of unbalance with go depth of material, reach it is one step completed accurately go material requirements, the effective systematicness for ensureing to remove material surface reduces the damage for repeatedly going material to produce rotor axis body.Elongated flexible rotor dynamic deflection index no more than 0.2mm under 0~20000 rev/min of rotating speed, full working scope vibration without exception and the sound can be made by the present invention.
Description
Technical field
The present invention relates to a kind of flexible rotor dynamic deflection control method, especially a kind of elongated flexible rotor high speed dynamic deflection
Control method, it is adaptable to hollow, the elongated super high speed dynamic deflection control technology for facing Jie's rotor.
Background technology
The existing dynamic balancing for flexible rotor, it will usually take the survey that test mass is carried out with the mode of tape-stripping balance weight
Amount technique, is corrected, untill dynamic deflection is qualified using repeatedly measuring, going by the way of material is measured again.I.e. using multiple
The mode of start and stop balancing machine completes dynamic balancing work, and its technological process is generally：The peace of the preparation → workpiece of workpiece and equipment
Dress → dynamic balancing measurement → with balance weight precorrection → go on a small quantity material → measure → go on a small quantity again again material → by following
Ring is operated, untill dynamic deflection is qualified.This technique is measured by test mass repeatedly and repeatedly goes material to correct, and causes balance
The multiple start and stop of machine, not only balance efficiency is low and goes material in irregular shape, is more than 800mm for length in addition, and diameter is less than
The slender flexible shaft of 30mm, when rotating speed is more than 10000 revs/min, the intensity of adhesive tape bonding balance weight is not enough, can produce balance weight
The peril for flying out, not only causes potential safety hazard and causes measured value distortion, can not meet high accuracy, high-quality, rotating speed high
The use requirement of elongated flexible rotor.
The content of the invention
It is an object of the invention to provide a kind of rotor high speed dynamic deflection control method, exceeding elongated flexible rotor
Dynamic deflection index is not more than 0.2mm, full working scope vibration without exception and the sound under 10000 revs/min of rotating speed, meets high accuracy, height
The use requirement of quality, rotating speed elongated flexible rotor high.
Concrete technical scheme of the invention is that described elongated flexible rotor high speed dynamic deflection control method includes following step
Suddenly：
(1) prepare the elongated flexible rotor identical testpieces of and ready to balance, and attach it on balancing machine, start flat
Weighing apparatus machine faces Jie's rotating speed to rotor, carries out dynamic deflection measurement, and record dynamic deflection value, uneven value and corresponding crest angle
Phase, mutually removes the material of different depth, and record each with milling cutter on the duplicate removal boss that portion is set in the rotor at the angle of crest
The changing value of corresponding amount of unbalance, the data of gained are depicted as between depth of material and amount of unbalance after removal material
Graph of relation；
(2) prepare the elongated flexible rotor of ready to balance and attach it on balancing machine；
(3) start balancing machine and be slowly increased to the facing near Jie's rotating speed of rotor, i.e., between 14000~15000 revs/min, enter action
Deflection metrology, and record the crest of dynamic deflection curve, trough angle phase and value；
(4) fine balance snap ring is installed at the duplicate removal boss of workpiece and fixation, described balance snap ring is by two and half
Circular rings 3 are constituted, and are fixed by symmetrically arranged two bolts 1, pad and nut 2 identical in quality, its internal diameter with wait to put down
The duplicate removal boss of weighing apparatus rotor coordinates；
(5) according to dynamic deflection curve adjustment balance snap ring angle, make two bolts respectively positioned at dynamic deflection curve crest and
Trough angle phase, then increases the mode of balance gasket to adjust the Mass Distribution of rotor on the bolt that the angle of trough is got along, and
(2nd) step is carried out, until the crest of the dynamic deflection curve of rotor, valley value are corrected within 0.2mm；
(6) dismounting rotor and balance snap ring, remove increased balance gasket and weigh；
(7) quality of calculated equilibrium pad and the product of the radius for removing heave hand, draw the amount of unbalance of rotor；
(8) according to graph of relation between depth of material and amount of unbalance is removed, the depth that should remove material is found, then in crest
Get along and the material of prescribed depth is removed in angle；
(9) rotor is arranged on balancing machine, starts balancing machine, measurement rotor facing the dynamic deflection near Jie's rotating speed, if
Within 0.2mm, then balance is completed, if more than 0.2mm, carrying out (4)-(8) step, until dynamic deflection is within 0.2mm.
The present invention has the advantage that effect, is by installing balance snap ring and balance gasket, improving using this process
The authenticity and stability of dynamic balancing measurement, and the dynamic deflection index of rotor is converted into amount of unbalance index；By setting up not
Aequum and the corresponding relation for going depth of material, reach it is one step completed accurately go material requirements, it is effective to ensure to remove material
The systematicness on surface, reduces the damage for repeatedly going material to produce rotor axis body.
The present invention passes through the precision measurement method of rotor dynamic deflection and sets up dynamic deflection and remove the corresponding relation of depth of material,
With the measurement of high-quality completion dynamic deflection and disposably material can be gone to correct, be conducive to improving the overall matter of elongated flexible rotor
Amount.
Can be not more than elongated flexible rotor dynamic deflection index under 0~20000 rev/min of rotating speed by the present invention
0.2mm, full working scope vibration without exception and the sound.
Brief description of the drawings
Fig. 1 is the structural representation for balancing snap ring；
Fig. 2 removes graph of relation between depth of material and amount of unbalance for what is be related in embodiment.
Specific embodiment
As illustrated, elongated flexible rotor high speed dynamic deflection control method is comprised the following steps：
(1) prepare the elongated flexible rotor identical testpieces of and ready to balance, and attach it on balancing machine, start flat
Weighing apparatus machine faces Jie's rotating speed to rotor, carries out dynamic deflection measurement, and record dynamic deflection value, uneven value and corresponding crest angle
Phase, mutually removes the material of different depth, and record each with milling cutter on the duplicate removal boss that portion is set in the rotor at the angle of crest
The changing value of corresponding amount of unbalance, the data of gained are depicted as between depth of material and amount of unbalance after removal material
Graph of relation；
(2) prepare the elongated flexible rotor of ready to balance and attach it on balancing machine；
(3) start balancing machine and be slowly increased to the facing near Jie's rotating speed of rotor, i.e., between 14000~15000 revs/min, enter action
Deflection metrology, and record the crest of dynamic deflection curve, trough angle phase and value；
(4) fine balance snap ring is installed at the duplicate removal boss of workpiece and fixation, described balance snap ring is by two and half
Circular rings 3 are constituted, and are fixed by symmetrically arranged two bolts 1, pad and nut 2 identical in quality, its internal diameter with wait to put down
The duplicate removal boss of weighing apparatus rotor coordinates；
(5) according to dynamic deflection curve adjustment balance snap ring angle, make two bolts respectively positioned at dynamic deflection curve crest and
Trough angle phase, then increases the mode of balance gasket to adjust the Mass Distribution of rotor on the bolt that the angle of trough is got along, and
(2nd) step is carried out, until the crest of the dynamic deflection curve of rotor, valley value are corrected within 0.2mm；
(6) dismounting rotor and balance snap ring, remove increased balance gasket and weigh；
(7) quality of calculated equilibrium pad and the product of the radius for removing heave hand, draw the amount of unbalance of rotor；
(8) according to graph of relation between depth of material and amount of unbalance is removed, the depth that should remove material is found, then in crest
Get along and the material of prescribed depth is removed in angle；
(9) rotor is arranged on balancing machine, starts balancing machine, measurement rotor facing the dynamic deflection near Jie's rotating speed, if
Within 0.2mm, then balance is completed, if more than 0.2mm, carrying out (4)-(8) step, until dynamic deflection is within 0.2mm.
Embodiment
Certain aviation elongated flexible rotor, its overall length is 820mm, and external diameter 28mm, operating critical rotating speed is 15000
Rev/min, dynamic deflection control is carried out to it, it is desirable to which dynamic deflection index is not more than 0.2mm, full working scope under 21000 revs/min of rotating speed
Vibration without exception and the sound.It is comprised the following steps that：
(1) prepare the elongated flexible rotor identical testpieces of and ready to balance, and attach it on balancing machine, start flat
Weighing apparatus machine faces Jie's rotating speed to rotor, carries out dynamic deflection measurement, and record dynamic deflection value, uneven value and corresponding crest angle
Phase, mutually removes the material of different depth, and record each with milling cutter on the duplicate removal boss that portion is set in the rotor at the angle of crest
The changing value of corresponding amount of unbalance, the data of gained are depicted as between depth of material and amount of unbalance after removal material
Graph of relation；
(2) prepare the elongated flexible rotor of ready to balance and attach it on balancing machine；
(3) start balancing machine and be slowly increased to rotor face Jie's rotating speed, i.e., 15000 rev/min, carry out dynamic deflection measurement, and record
The crest of dynamic deflection curve, trough angle phase and value:
Crest angle phase:35 °, 215 ° of trough angle phase, value 0.55mm；
(4) fine balance snap ring is installed at the duplicate removal boss of workpiece and fixation, described balance snap ring is by two and half
Circular rings are constituted, and are fixed by symmetrically arranged two bolts identical in quality, pad and nuts, and its internal diameter turns with ready to balance
The duplicate removal boss of son coordinates；
(5) according to dynamic deflection curve adjustment balance snap ring angle, make two bolts respectively positioned at dynamic deflection curve crest and
Trough angle phase, then increases the mode of balance gasket to adjust the Mass Distribution of rotor on the bolt that the angle of trough is got along, and
(2nd) step is carried out, until the crest of the dynamic deflection curve of rotor, valley value are corrected within 0.2mm；
(6) dismounting rotor and balance snap ring, remove increased balance gasket and weigh, and weight is 0.35g；
(7) weight of calculated equilibrium pad and the product of the radius (clip radius 3.55cm) for removing heave hand, draw the injustice of rotor
Weigh:0.35g × 3.55cm=1.24gcm；
(8) according to removing graph of relation between depth of material and amount of unbalance, it is 0.44mm to find and should remove the depth of material, so
Got along at crest angle afterwards and the material of prescribed depth is removed；
(9) rotor is arranged on balancing machine, starts balancing machine, measurement rotor is facing the dynamic deflection of Jie's rotating speed for 0.1mm, and nothing
Abnormal vibrations and the sound, balance are completed.
Claims (1)
1. a kind of elongated flexible rotor high speed dynamic deflection control method, it is characterised in that described method is comprised the following steps：
1) prepare the elongated flexible rotor identical testpieces of and ready to balance, and attach it on balancing machine, start flat
Weighing apparatus machine faces Jie's rotating speed to rotor, carries out dynamic deflection measurement, and record dynamic deflection value, uneven value and corresponding crest angle
Phase, mutually removes the material of different depth, and record each with milling cutter on the duplicate removal boss that portion is set in the rotor at the angle of crest
The changing value of corresponding amount of unbalance, the data of gained are depicted as between depth of material and amount of unbalance after removal material
Graph of relation；
2) prepare the elongated flexible rotor of ready to balance and attach it on balancing machine；
3) start balancing machine and be slowly increased to the facing near Jie's rotating speed of rotor, i.e., between 14000~15000 revs/min, enter action and scratch
Degree measurement, and record the crest of dynamic deflection curve, trough angle phase and value；
4) fine balance snap ring is installed at the duplicate removal boss of workpiece and fixation, described balance snap ring is by two semicircles
Shape ring (3) is constituted, and fixed by symmetrically arranged two bolts (1) identical in quality, pad and nut (2), its internal diameter with
The duplicate removal boss of ready to balance rotor coordinates；
5) according to the angle of dynamic deflection curve adjustment balance snap ring, make two bolts respectively positioned at the crest and ripple of dynamic deflection curve
Paddy angle phase, then increases the mode of balance gasket to adjust the Mass Distribution of rotor on the bolt that the angle of trough is got along, and goes forward side by side
2) the step of row the, until the crest of the dynamic deflection curve of rotor, valley value are corrected within 0.2mm；
6) dismounting rotor and balance snap ring, remove increased balance gasket and weigh；
7) quality of calculated equilibrium pad and the product of the radius for removing heave hand, draw the amount of unbalance of rotor；
8) according to graph of relation between depth of material and amount of unbalance is removed, the depth that should remove material is found, then in crest
Get along and the material of prescribed depth is removed in angle；
9) rotor is arranged on balancing machine, starts balancing machine, measurement rotor facing the dynamic deflection near Jie's rotating speed, if
Within 0.2mm, then balance is completed, if more than 0.2mm, carrying out 4) -8) step, until dynamic deflection is within 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099959.0A CN106840522B (en) | 2016-12-02 | 2016-12-02 | High-speed dynamic deflection control method for slender flexible rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099959.0A CN106840522B (en) | 2016-12-02 | 2016-12-02 | High-speed dynamic deflection control method for slender flexible rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106840522A true CN106840522A (en) | 2017-06-13 |
| CN106840522B CN106840522B (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611099959.0A Active CN106840522B (en) | 2016-12-02 | 2016-12-02 | High-speed dynamic deflection control method for slender flexible rotor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0942273A3 (en) * | 1998-03-13 | 2000-05-31 | Schenck RoTec GmbH | Method for determining the compensation of the unbalance by elastic rotors |
| CN2883787Y (en) * | 2006-04-06 | 2007-03-28 | 中国航空动力机械研究所 | Narrow long flexible rotor high speed balancer |
| CN101246073A (en) * | 2008-03-26 | 2008-08-20 | 哈尔滨东安发动机（集团）有限公司 | Dynamic balance emendation method of flexible rotor |
| WO2007007333A3 (en) * | 2005-07-12 | 2008-11-06 | Technion Res & Dev Foundation | System and method for active detection of asymmetry in rotating structures |
| CN103592082A (en) * | 2013-11-12 | 2014-02-19 | 哈尔滨东安发动机（集团）有限公司 | Method for measuring static unbalance amount of long and thin flexible rotor |
| CN105867307A (en) * | 2016-04-06 | 2016-08-17 | 中国南方航空工业(集团)有限公司 | High-speed dynamic balance restoration method for transmission shaft |
| CN105928658A (en) * | 2016-04-29 | 2016-09-07 | 沈阳鼓风机集团股份有限公司 | High-speed dynamic balancing method and apparatus of assembly type compressor rotor |
-
2016
- 2016-12-02 CN CN201611099959.0A patent/CN106840522B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0942273A3 (en) * | 1998-03-13 | 2000-05-31 | Schenck RoTec GmbH | Method for determining the compensation of the unbalance by elastic rotors |
| WO2007007333A3 (en) * | 2005-07-12 | 2008-11-06 | Technion Res & Dev Foundation | System and method for active detection of asymmetry in rotating structures |
| CN2883787Y (en) * | 2006-04-06 | 2007-03-28 | 中国航空动力机械研究所 | Narrow long flexible rotor high speed balancer |
| CN101246073A (en) * | 2008-03-26 | 2008-08-20 | 哈尔滨东安发动机（集团）有限公司 | Dynamic balance emendation method of flexible rotor |
| CN103592082A (en) * | 2013-11-12 | 2014-02-19 | 哈尔滨东安发动机（集团）有限公司 | Method for measuring static unbalance amount of long and thin flexible rotor |
| CN105867307A (en) * | 2016-04-06 | 2016-08-17 | 中国南方航空工业(集团)有限公司 | High-speed dynamic balance restoration method for transmission shaft |
| CN105928658A (en) * | 2016-04-29 | 2016-09-07 | 沈阳鼓风机集团股份有限公司 | High-speed dynamic balancing method and apparatus of assembly type compressor rotor |
Non-Patent Citations (2)
| Title |
|---|
| 邓旺群 等: "应用于小发柔性转子的高速动平衡技术", 《燃气涡轮试验与研究》 * |
| 邓旺群 等: "涡轴发动机动力涡轮转子高速动平衡技术研究", 《航空动力学报》 * |
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| CN106840522B (en) | 2020-12-22 |
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