CN102635665B - Heat flow variation automatic balancing method - Google Patents
Heat flow variation automatic balancing method Download PDFInfo
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- CN102635665B CN102635665B CN201210114265.5A CN201210114265A CN102635665B CN 102635665 B CN102635665 B CN 102635665B CN 201210114265 A CN201210114265 A CN 201210114265A CN 102635665 B CN102635665 B CN 102635665B
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- heat flow
- flow variation
- rotating shaft
- automatic balancing
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Abstract
A kind of heat flow variation automatic balancing method, its step is as follows: 1, install a heat flow variation automatic balancing arrangement between rotating shaft and bearing additional; 2, rotating shaft high speed rotating; During 3, rotating shaft high speed rotating, heat flow variation automatic balancing arrangement end is heated to 180-250 DEG C; 4, softening rheo-material moves and reaches balance by rotating shaft continuation high speed rotating automatically; 5, retainer shaft rotation of heating is stopped; 6) stop the rotation after, making rheo-material be cooled to normal temperature; 7, owing to making it sclerosis after rheo-material cooling, position is fixed, thus reaches effective balance; Its advantage is: the temperature of overlapping with heated thermal fluid deformation can be reduced its deformation force by the deviation rotating physical centre and center of mass for reducing rotor further, rise and become its centrifugal force, thus reach dynamically balanced autobalance state, after recovering normal-temperature, the eccentric state required for two heart balances will be maintained, thus make rotator type rotation shape put the dynamic balance performance of realizing ideal.
Description
Technical field
The present invention relates to mechanical rotating shaft balancing technique field, specifically a kind of heat flow variation automatic balancing method.
Background technique
The significance of dynamic balancing index to slewing gear is self-evident, it on life-span, precision, noise, the stability of slewing gear, reliability has critical impact, is must confirm and index up to standard.
The dynamic balancing of rotor is subject to the impact of the many factors such as whole design, material, processing, temperature, rotating speed, assembling, also can be subject to the condition impact that finger degree, stress, deformation etc. are difficult to expect, make dynamic balancing up to standard again deteriorated after general assembly.
Dynamic balancing survey school, need stand and instrument and equipment, by survey data, increase and decrease rotor suitable position quality, said process generally needs multinomial repetition to meet technical requirements.
After rotor general assembly up to standard, system may occur that again new system is uneven, though now can measure the vibration of whole device, it and rotor self imbalance, although about not determining the position of causing and corresponding correction measure.
And it is much large-scale and require special rotor, as large-scale generator rotor, aircraft engine machine rotor, exceed the speed limit hunchbacked spiral shell instrument rotor etc., because testboard bay, environment, condition limit, or quality increase and decrease mode limits and has to rely on the index that design and processes ensures to assert rotor dynamic balancing, and under various rotating speed condition, closing device can be started and repeatedly carry out in general assembly, adjusting the mounting or dismounting of frame to correct system-wide vibration balancing requirement after dress.Rotor in addition as batch production considers that cost does not much make single-piece and overall measurement dynamic balancing only relies on original design and technological requirement, assert the quality standard of final products, result well imagines the subsurface defect because of material, assembling deviation etc., a lot of underproof product export will be made, cause affecting its working life, precision etc., destroy goodwill.
The present invention surveys school mass distribution method from existing dynamic balancing, and professional technique requires that high process is complicated, instrument and apparatus testboard bay, and test environment, increase and decrease quality method and means are different with product difference, during above-mentioned temporary worker paid from operation costs, very expensive.Current art condition cannot meet the background of Product checking needs at all even in some cases.Think and rotate the imbalance of product, may be given to: the physics rotating center determined by bearing and its integration torque be zero quality rotating center inconsistent.We both by changing quality split, comprised various resistance, and the quality rotating center change changed when making integration torque be zero makes it consistent with the physics rotating center determined by bearing, and reaches dynamic balancing; Interaction between the centrifugal force also produced by comprehensive uneven torque and bearing, moves integrally the physics rotating center that rotor quality inertial rotation center makes it to determine with bearing consistent, and reaches dynamic balancing.
Survey calibration method as the former and have a large amount of research and exploitation, change physical positioning center as the latter, particularly realize non-instrumented method less.
During the complete dynamic balancing of the rotor in fact in engineering, the equal balance of the integration torque around axle center can regard a gyro as, when out-of-balance, rotor integration torque bigger than normal while will centrifugal force be produced, make rotor produce precession, thus produce additional centrifugal pressure to the bearing of supporting axis and back shaft, synthesize with centrifugal force time horizontal produce upper and lower, time vertical, generation circumference is rocked, and these produce bearing accelerated wear test, precise decreasing, fatigue life declines, the vibration source of vibration noise, heating etc.
Summary of the invention
The object of heat flow variation automatic balancing method of the present invention is that the size of the periodic centrifugal force that this dynamic unbalance produces is relevant to rotating speed with frequency, when between rotor shaft and bearing, if cover has add the stressed ring set producing annular displacement of uniform temperature, ring set produces bias can make the physics rotating center of rotor close to the quality rotating center of rotor, until substantially overlap.
Heat flow variation automatic balancing arrangement of the present invention, comprising: the external diameter of inner ring body 1 arranges spiral ring gear 2, and outer ring body 3 internal diameter is provided with between the engagement of spiral ring gear 4, two helical tooth certain metric space, is provided with heat flow material 5 in space.
Described metric space is 0.1 ~ 1mm.
The low-temperature alloy that described fluent material is Babbitt, High-molecular rubber material, antimony lead zinc alloy (being commonly called as type metal), plumbous Zinc-tin alloy and less than 250 DEG C temperature are softened.
When ring set bias continues to increase, the physical centre that rotor rotates and center of mass move closer to, and centrifugal force will reduce because of the reduction of throw of eccentric and balance to ring set type variable force and centrifugal force eventually.
The self balancing method of heat flow variation of the present invention, its step is as follows:
1) a heat flow variation automatic balancing arrangement, is installed between rotating shaft and bearing additional;
2), rotating shaft high speed rotating;
3), rotating shaft high speed rotating time, heat flow variation automatic balancing arrangement end is heated to 180-250 DEG C;
4), softening rheo-material moves and reaches balance by rotating shaft continuation high speed rotating automatically;
5), retainer shaft rotation of heating is stopped;
6) stop the rotation after, making rheo-material be cooled to normal temperature;
7), owing to making it sclerosis after rheo-material cooling, position is fixed, thus reaches effective balance;
Described rotary balance is that the heart and mass inertia center are got basically identical in the design.
The advantage of heat flow variation automatic balancing method of the present invention is: the temperature of overlapping with heated thermal fluid deformation can be reduced its deformation force by the deviation rotating physical centre and center of mass for reducing rotor further, also rotor speed can be strengthened, rise and become its centrifugal force, make its two centre deviation reach minimum matter.Thus reach dynamically balanced autobalance state, hot fluid deformation cover, after recovering normal-temperature, the eccentric state required for two heart balances will be maintained, thus make rotator type rotation shape put the dynamic balance performance of realizing ideal; This heat flow variation balance ring set, can increase substantially manufacturing efficiency and reduce costs simultaneously, improves yield and quality and product working life.Larger use value is had especially to solution one tittle large production scientific research, a dynamically balanced measurement adjusting difficult problem.
Accompanying drawing explanation
Fig. 1 is heat flow variation automatic balancing arrangement Jie Ju schematic diagram.
Embodiment
Heat flow variation automatic balancing arrangement of the present invention shown in root Ju Fig. 1, comprising: the external diameter of inner ring body 1 arranges spiral ring gear 2, and outer ring body 3 internal diameter is provided with between the engagement of spiral ring gear 4, two helical tooth certain metric space, is provided with heat flow material 5 in space.
Described metric space is 0.1 ~ 1mm.
The low-temperature alloy that described fluent material is Babbitt, High-molecular rubber material, antimony lead zinc alloy (being commonly called as type metal), plumbous Zinc-tin alloy and less than 250 DEG C temperature are softened.
When ring set bias continues to increase, the physical centre that rotor rotates and center of mass move closer to, and centrifugal force will reduce because of the reduction of throw of eccentric and balance to ring set type variable force and centrifugal force eventually.
The self balancing method of heat flow variation of the present invention, its step is as follows:
1) a heat flow variation automatic balancing arrangement, is installed between rotating shaft and bearing additional;
2), rotating shaft high speed rotating;
3), rotating shaft high speed rotating time, heat flow variation automatic balancing arrangement end is heated to 180-250 DEG C;
4), softening rheo-material moves and reaches balance by rotating shaft continuation high speed rotating automatically;
5), retainer shaft rotation of heating is stopped;
6) stop the rotation after, making rheo-material be cooled to normal temperature;
7), owing to making it sclerosis after rheo-material cooling, position is fixed, thus reaches effective balance.
Claims (1)
1. a heat flow variation automatic balancing method, is characterized in that: its step is as follows:
1) a heat flow variation automatic balancing arrangement, is installed between rotating shaft and bearing additional;
2), rotating shaft high speed rotating;
3), rotating shaft high speed rotating time, heat flow variation automatic balancing arrangement end is heated to 180-250 DEG C;
4), softening rheo-material moves and reaches balance by rotating shaft continuation high speed rotating automatically;
5), retainer shaft rotation of heating is stopped;
6) stop the rotation after, making rheo-material be cooled to normal temperature;
7), owing to making it sclerosis after rheo-material cooling, position is fixed, thus reaches effective balance;
Described heat flow variation automatic balancing arrangement, comprise: the external diameter of inner ring body (1) arranges spiral ring gear (2), outer ring body (3) internal diameter is provided with spiral ring gear (4), there is certain metric space between two helical tooth engagements, in space, be provided with heat flow material (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114265.5A CN102635665B (en) | 2012-04-18 | 2012-04-18 | Heat flow variation automatic balancing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114265.5A CN102635665B (en) | 2012-04-18 | 2012-04-18 | Heat flow variation automatic balancing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102635665A CN102635665A (en) | 2012-08-15 |
| CN102635665B true CN102635665B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210114265.5A Expired - Fee Related CN102635665B (en) | 2012-04-18 | 2012-04-18 | Heat flow variation automatic balancing method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109597445B (en) * | 2018-11-20 | 2020-09-01 | 中国船舶重工集团公司第七0七研究所 | Method for accurately controlling temperature of gyro static balancer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771358A (en) * | 2003-04-03 | 2006-05-10 | 纳幕尔杜邦公司 | Rotary process for forming uniform material |
| CN1856674A (en) * | 2003-07-18 | 2006-11-01 | 国际销售公司 | Balance weight cartridge with enclosed balance media |
| CN201627910U (en) * | 2010-02-01 | 2010-11-10 | 北京中清能发动机技术有限公司 | Reciprocating motion element of crank circular slide block mechanism and equipment thereof |
| WO2011048897A1 (en) * | 2009-10-20 | 2011-04-28 | 日東電工株式会社 | Vibration-damping sheet, method for damping vibration of vibrating member, and method of use |
| WO2011146959A1 (en) * | 2010-05-28 | 2011-12-01 | Nega-Shock Pty Limited | Vibration dampening device |
-
2012
- 2012-04-18 CN CN201210114265.5A patent/CN102635665B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771358A (en) * | 2003-04-03 | 2006-05-10 | 纳幕尔杜邦公司 | Rotary process for forming uniform material |
| CN1856674A (en) * | 2003-07-18 | 2006-11-01 | 国际销售公司 | Balance weight cartridge with enclosed balance media |
| WO2011048897A1 (en) * | 2009-10-20 | 2011-04-28 | 日東電工株式会社 | Vibration-damping sheet, method for damping vibration of vibrating member, and method of use |
| CN201627910U (en) * | 2010-02-01 | 2010-11-10 | 北京中清能发动机技术有限公司 | Reciprocating motion element of crank circular slide block mechanism and equipment thereof |
| WO2011146959A1 (en) * | 2010-05-28 | 2011-12-01 | Nega-Shock Pty Limited | Vibration dampening device |
Non-Patent Citations (1)
| Title |
|---|
| 磁流变弹性体阻尼器-转子系统的移频特性研究;汪建晓等;《佛山科学技术学院学报（自然科学版）》;20100131;第28卷(第1期);33-35 * |
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| CN102635665A (en) | 2012-08-15 |
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Effective date of registration: 20160330 Address after: 430078, No. 2, No. 1, Wuhan economic and Technological Development Zone, Hubei, Wuhan Applicant after: WUHAN BAONIXI TECHNOLOGY CO., LTD. Address before: 505, room 1, unit 1, Pioneer Street, East Lake Development Zone, Wuhan, Hubei, 430070 Applicant before: Wuhan Gaozhi Innovation Technology Co., Ltd. |
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