CN101707417B - Concentricity aligning method of a plurality of series motors - Google Patents
Concentricity aligning method of a plurality of series motors Download PDFInfo
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- CN101707417B CN101707417B CN200910232610A CN200910232610A CN101707417B CN 101707417 B CN101707417 B CN 101707417B CN 200910232610 A CN200910232610 A CN 200910232610A CN 200910232610 A CN200910232610 A CN 200910232610A CN 101707417 B CN101707417 B CN 101707417B
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Abstract
The invention discloses a concentricity aligning method of a plurality of series motors. The method comprises the following steps: arranging two dial gauges on a same angle of two end shafts of the motor to be replaced and measuring highest position and lowest position data; firstly adjusting axial clearances, leading two half shafts to be parallel, then adjusting radial clearances and leading two half coupling shafts to be coaxial; after all the adjustments of the radial clearances and axial clearances are finished, needing to meet the following conditions: a1 is equal to a3 and a2 is equal to a4, namely indicating that the central lines of a driving machine shaft and a driven machine shaft are positioned at the same line. In the invention, when one of a plurality of series motors is replaced, the concentricity alignment is carried out on the two ends of the replaced motor simultaneously, while the rest of motors do not need to be aligned again, therefore, the concentricity aligning method saves time and labor and also can guarantee precision.
Description
Technical field
The present invention relates to a kind of plurality of series motors concentricity aligning method.
Background technology
The motor aligning concentricity is the basic skills that a kind of equipment is installed, and in equipment is installed, generally uses.Produce bigger vibration when the high speed rotating for fear of equipment; Damage the motor and speed reducer bearing, improve the useful life of equipment, require large-scale, the higher axiality of the necessary when mounted assurance of high-speed equipment; Therefore; The motor aligning concentricity is the work extremely important, that required precision is very high in equipment installation project, before the equipment trial run, must strictly test, and guarantees installation quality.
In actual production, often require multiple electric motors series connection, when changing wherein one, if go a centering to waste time and energy with traditional concentricity aligning method, and along with the accumulation of error, the precision reduction influences the normal operation of equipment.
Summary of the invention
When changing wherein one in order to overcome existing multiple electric motors series connection; The problem that concentricity aligning method exists; The purpose of this invention is to provide a kind of plurality of series motors concentricity aligning method, when this method is changed wherein one in multiple electric motors series connection, only need adjust the motor of changing; All the other motors are motionless, and are not only time saving and energy saving but also guaranteed precision.
The objective of the invention is to realize through following technical scheme:
A kind of plurality of series motors concentricity aligning method; It is characterized in that this method when multiple electric motors series connection is changed wherein one, carries out aligning concentricity to institute replacing motor two ends simultaneously, all the other motors are centering again then; And can guarantee precision, specifically may further comprise the steps:
1) with two indicator brackets on the same angle of changing the motor two end axles, rotate with axle, record highest order and lowest order digit according to a1, a2, a3, a4;
2) adjust end play earlier, make two-semiaxle parallel, adjust radial clearance then, make the two halves shaft coupling coaxial;
1. make the two halves shaft coupling parallel earlier, under active under-chassis (2), adding thickness is the pad of xmm,
Wherein, X=e2-e1, e1=in the formula (a1-a3)/2, e2=(a2-a4)/2, a1, a2, a3, a4 beat the reading of table for the axle two ends.
Because leg (2) bed hedgehopping, leg (1) is pad not, so driving shaft will be fulcrum deflection back with leg (1); At this moment, though two shaft coupling end faces are parallel, the center of driving shaft has moved down ymm, y=c*x/L=c* (e2-e1)/L, wherein, c be leg (1) to the distance between the half shaft coupling measurement plane, L is the distance between two legs;
2. make the two halves shaft coupling coaxial, its original radial displacement e1=(a1-a3)/2 will make the two halves shaft coupling coaxial fully, must add under leg (1) that then thickness is the pad of (y+e) mm, adds thickness under the leg (2) to be the pad of (x+y+e) mm;
3) mover has four legs; During cushioning, preceding two underfooting of mover should add the pad of same thickness, and latter two underfooting also will add the pad of same thickness; After all the adjustment of radial clearance and end play finishes; Must satisfy following condition: a1=a3, a2=a4 shows that promptly the center line of active arbor and driven arbor is located along the same line.
Among the present invention, when two tables when 90 °, 270 ° two the measured data in position differ greatly, should motor position be done suitable moving in the horizontal direction and adjust, move mode adopts hammering or jack to adjust the horizontal level of motor usually.
The present invention adopts two ends to play table, carries out the method for aligning concentricity simultaneously, compared with prior art, when the present invention changes wherein one in multiple electric motors series connection, only needs adjust the motor of changing, and all the other motors are motionless, and is not only time saving and energy saving but also guaranteed precision.
Description of drawings
Fig. 1 is the sketch map of the embodiment of the invention.
Embodiment
When a kind of plurality of series motors concentricity aligning method, this method are changed wherein one in multiple electric motors series connection, aligning concentricity is carried out at institute replacing motor two ends simultaneously, all the other motors are centering again then, and can guarantee precision.See Fig. 1, three motors are cascaded, and the 2# motor in the middle of changing under the situation that 1#, 3# motor need not move, is adjusted with regard to the 2# motor.
Present embodiment has been chosen typical existing radial displacement and has been had again under the situation of angular displacement and carried out the two ends aligning concentricity.Through the frame dial gauge at the two ends of 2# motor shaft, 360 ° of 2# motor shaft rotations are write down 4 reading: a1, a2 respectively in highest order and lowest order, a3, and a4 measures distance L and two legs between axle two legs to the horizontal range at a two ends.When adjusting, normally adjust end play earlier, make diaxon parallel, adjust radial clearance then, make the two halves shaft coupling coaxial according to drift condition.
Be to guarantee adjustment quickly and accurately, should first approximate calculation, to confirm that the mover underfooting should add the spacer thickness that maybe should subtract.Specifically may further comprise the steps:
Two dial frameworks on the same angle of changing the motor two end axles, are rotated with axle, record a1, a2, a3, a4 data.
Make the two halves shaft coupling parallel earlier, must add thickness for 2 times at the active under-chassis and could realize, can calculate into the pad of xmm:
X=e2-e1, e1=in the formula (a1-a3)/2, e2=(a2-a4)/2, a1, a2, a3, a4 beat the reading of table for the axle two ends.
Because leg 2 bed hedgehoppings, leg 1 is pad not, so driving shaft will be fulcrum deflection back with leg 1.At this moment, though two shaft coupling end faces are parallel, the center of driving shaft has moved down ymm, and triangle is similar tries to achieve: y=c*x/L=c* (e2-e1)/L, c are the distance between leg 1 to the half shaft coupling measurement plane, and L is the distance between two legs.
Make the two halves shaft coupling coaxial.Its original radial displacement e1=(a1-a3)/2 will make the two halves shaft coupling coaxial fully, must add under leg 1 that then thickness is the pad of (y+e) mm, and leg adds thickness for 2 times and is the pad of (x+y+e) mm.
Mover generally all has four legs, so during cushioning, preceding two underfooting of mover should add the pad of same thickness, and latter two underfooting also will add the pad of same thickness.If when the data of 90 °, 270 ° two position gained differ greatly, can motor position be done suitable moving in the horizontal direction and adjust, adopt hammering or jack to come the horizontal level of motor usually.
When all the adjustment of radial clearance and end play finishes, must satisfy following condition: a1=a3, a2=a4.This center line that shows active arbor and driven arbor is located along the same line.
Claims (2)
1. plurality of series motors concentricity aligning method; It is characterized in that this method when multiple electric motors series connection is changed wherein one, carries out aligning concentricity to institute replacing motor two ends simultaneously, all the other motors are centering again then; And can guarantee precision, specifically may further comprise the steps:
1) with two indicator brackets on the same angle of changing the motor two end axles, rotate with axle, record left end fixed electrical machinery highest order data a1 and lowest order digit according to a3, right-hand member fixed electrical machinery highest order data a2 and lowest order digit are according to a4;
2) adjust end play earlier, make the two halves shaft coupling parallel, adjust radial clearance then, make the two halves shaft coupling coaxial;
1. make the two halves shaft coupling parallel earlier, under right-hand member leg (2), adding thickness is the pad of xmm,
Wherein, x=(e2-e1), e1=in the formula (a1-a3)/2, e2=(a2-a4)/2, a1, a2, a3, a4 beat the reading of table for the axle two ends;
Because right-hand member leg (2) bed hedgehopping, left end leg (1) is pad not, so driving shaft will be fulcrum deflection back with left end leg (1); At this moment, though two halves shaft coupling end face is parallel, the center of driving shaft has moved down ymm, y=c*x/L=c* (e2-e1)/L; Wherein, c be left end leg (1) to the distance between the half shaft coupling measurement plane, L is the distance between left end leg (1) and the right-hand member leg (2);
2. make the two halves shaft coupling coaxial, its original radial displacement e1=(a1-a3)/2 will make the two halves shaft coupling coaxial fully, must add under left end leg (1) that then thickness is the pad of (y+e1) mm, adds thickness under the right-hand member leg (2) to be the pad of (x+y+e1) mm;
3) change motor four legs are arranged; During cushioning, change the pad that preceding two underfooting of motor should add same thickness, and latter two underfooting also to add the pad of same thickness; After all the adjustment of radial clearance and end play finishes; Must satisfy following condition: a1=a3, a2=a4 shows that promptly the center line of the axle of the axle of changing motor and all the other motors is located along the same line.
2. a kind of plurality of series motors concentricity aligning method according to claim 1; It is characterized in that: two tables are when 90 °, 270 ° two the measured data in position differ greatly; Should motor position be done suitable moving in the horizontal direction and adjust, move mode adopts hammering or jack to adjust the horizontal level of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910232610A CN101707417B (en) | 2009-12-03 | 2009-12-03 | Concentricity aligning method of a plurality of series motors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910232610A CN101707417B (en) | 2009-12-03 | 2009-12-03 | Concentricity aligning method of a plurality of series motors |
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| Publication Number | Publication Date |
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| CN101707417A CN101707417A (en) | 2010-05-12 |
| CN101707417B true CN101707417B (en) | 2012-10-10 |
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| CN200910232610A Expired - Fee Related CN101707417B (en) | 2009-12-03 | 2009-12-03 | Concentricity aligning method of a plurality of series motors |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944210A (en) * | 2012-11-16 | 2013-02-27 | 北京汽车股份有限公司 | Coaxiality alignment method for connection between transmission shafts of two sets of equipment through connecting discs |
| CN104295533A (en) * | 2014-09-10 | 2015-01-21 | 江苏建筑职业技术学院 | Axial clearance adjustment method for pumping unit |
| US20170087701A1 (en) * | 2015-09-28 | 2017-03-30 | Dieterich Standard, Inc | Orifice plate centering tool |
| CN110202505A (en) * | 2019-06-26 | 2019-09-06 | 江苏核电有限公司 | A kind of large-size horizontal centrifugal pump centralising device and its centering method |
| CN110455164A (en) * | 2019-07-08 | 2019-11-15 | 福建福清核电有限公司 | A kind of centering method of adjustment of horizontal pump |
| CN111023948A (en) * | 2019-12-26 | 2020-04-17 | 上海电气集团上海电机厂有限公司 | End cover structure for measuring air gap of single-pivot motor and air gap measuring method of single-pivot motor |
| CN114543736B (en) * | 2022-01-28 | 2023-08-04 | 中车大连机车车辆有限公司 | Method for detecting assembly coaxiality of diesel generating set |
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2009
- 2009-12-03 CN CN200910232610A patent/CN101707417B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 于红梅.《旋转机械联轴器的安装找正研究》.《辽宁科技学院学报》.2007,第9卷(第4期),全文. * |
| 潘晓言.《泵组对中双表找正法》.《石油化工设备技术》.1991,第12卷(第4期),全文. * |
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Granted publication date: 20121010 Termination date: 20161203 |