CN107036512A - A kind of computational methods of shaft coupling alignment - Google Patents
A kind of computational methods of shaft coupling alignment Download PDFInfo
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- CN107036512A CN107036512A CN201710355220.XA CN201710355220A CN107036512A CN 107036512 A CN107036512 A CN 107036512A CN 201710355220 A CN201710355220 A CN 201710355220A CN 107036512 A CN107036512 A CN 107036512A
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- circumference
- shaft coupling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention relates to a kind of computational methods of shaft coupling alignment, main contents are：Two half a couplers are aligned by combined token, connected with interim pin pine, the dial gauge for measuring circumference value is fixed on excircle using clamp, measurement bar is contacted with another half a coupler outer circumference surface, the dial gauge dehisced is measured to be fixed in the symmetrical both sides endface position of the same diameter line of side shaft coupling, the end contact of measurement bar respectively with opposite side shaft coupling, along rotation direction, disk moves rotor, turn over 0 °, 90 °, 180 °, 270 ° of four measurement positions, record reading, calculated and dehisced according to reading, circumference deviation, circumference is drawn to dehisce figure, bring record data into general formula, and judge that sign is calculated by circumference figure of dehiscing, finally draw bearing adjustment amount.Present invention eliminates measurement error, make measurement more accurate, derive bearing adjustment amount calculation formula so that alignment Adjustable calculation is quicker.
Description
Technical field
The invention belongs to rotary machine installation and repairing technical field, particularly a kind of calculating side of shaft coupling alignment
Method.
Background technology
The rotating machineries such as steam turbine, water pump, blower fan are all to be formed by connecting by the rotating shaft of two and the above by shaft coupling.
The work essential in installation and maintenance process of these equipment is exactly alignment.So-called alignment is exactly to make every to turn
The center line of son is linked to be a smooth curve, eliminates discontinuous break in whole piece shafting, such rotating shaft is in rotation process
Can steady smooth safety.If instead rotor misalignment, periodicity alternation active force will be produced to bearing after rotor connection,
Cause vibration and noise.The safe and stable operation of unit is caused a hidden trouble.
Shafts alignment is realized by rotor coupling.Whole work is divided into two steps：One is to make two shaft couplings
End face, which is parallel to each other to avoid the occurrence of, dehisces；Two be that the vertical level for making two shaft coupling centers unanimously avoids the occurrence of dislocation.
The center for realizing this two steps shafting is just found.
The good shafting of rotor center centering is as shown in figure a, and the center line of every rotating shaft coincides together, coupling end-face
It is parallel to each other and center is relative；The rotor coupling of Disalignment, which is then likely to occur, dehisces or misplaces, or opens simultaneously
Mouth and dislocation.As schemed shown in b.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, and to propose a kind of computational methods of shaft coupling alignment.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of computational methods of shaft coupling alignment, comprise the following steps：
(1) shaft coupling is connected：Two half a couplers are aligned by combined token, and connected with interim pin pine；
(2) installation of measuring instrumentss：The dial gauge and two measurement end faces of one measurement circumference value are dehisced using clamp
The dial gauge of value is fixed, wherein the dial gauge of measurement circumference value is fixed on excircle, outside measurement bar and another half a coupler
Circumference contact, measures two dial gauges dehisced and is separately fixed at the symmetrical both sides endface position of the same diameter line of side shaft coupling
On, the end contact of measurement bar respectively with opposite side shaft coupling；
(3) data are read：Along rotation direction, disk moves rotor, record reading on 0 °, 90 °, 180 °, 270 ° of 4 positions according to
The secondary circumference value and end face value measured, end face value represents that circumference value is represented with A, B, C, D with an, bn, cn, dn, will measure numerical value
Record, while measuring adjustment end bearing shaft coupling diameter phi, each bearing of adjustment end rotor is to shaft coupling central point apart from Ln；
(4) data processing：By measure two groups of an, bn, cn, dn, each take the mean and draw a, b, c, d, and in calculating
Heart deviation, value of dehiscing：Horizontal direction Δ α=∣ a-c ∣；Vertical direction Δ α=∣ b-d ∣, circumference value：Horizontal direction Δ β=∣ A-C
∣/2；Vertical direction Δ β=∣ B-D ∣/2；
(5) adjustment amount is calculated：Draw circumference to dehisce figure, bring record data into general formula, and pass through circumference figure of dehiscing
Judge that sign is calculated, finally draw bearing adjustment amount.
Moreover, the specific method for judging that sign is calculated by circumference figure of dehiscing in the step (5) is：Bearing 1
Adjustment amount uses calculation formula Δ β1=(L1/ φ) × Δ α ± Δs β calculating；The adjustment amount of bearing 2 uses calculation formula Δ β2=
((L1+L2)/φ) × Δ α ± Δs β calculating.
Advantages and positive effects of the present invention are：
1st, the present invention is eliminated because measurement is missed caused by rotor axial movement using two pieces of dial gauge measurement end face deviations
Difference, makes measurement more accurate.
2nd, present invention measurement dehisces that the data measured twice are taken the mean during value, eliminates coupling end-face wooden dipper oblique presentation life
Error.
3rd, the present invention summarizes and has derived bearing adjustment amount calculation formula so that alignment Adjustable calculation is quicker.
Brief description of the drawings
Fig. 1 a are the good shafting schematic diagrames of rotor center centering；Fig. 1 b are the shafting schematic diagrames of Disalignment；
Fig. 2 is dial gauge scheme of installation of the present invention；
Fig. 3 is each Data Position schematic diagram of original record of the present invention；
Fig. 4 is formula proving geometric graph of the present invention；
Fig. 5 is the inventive method logic chart.
Embodiment
The embodiment of the present invention is further described below：It is emphasized that embodiment of the present invention is explanation
Property, rather than it is limited, therefore the present invention is not limited to the embodiment described in embodiment, it is every by this area
The other embodiment that technical staff's technique according to the invention scheme is drawn, also belongs to the scope of protection of the invention.
The present general inventive concept is that first, two half a couplers are aligned by combined token, and with interim pin pine even
Connect, fixed the dehisce dial gauge of value of the dial gauge and two measurement end faces of a measurement circumference value using Special clip, survey
The dial gauge of amount circumference value is fixed on excircle, and measurement bar is contacted with another half a coupler outer circumference surface, measures hundred dehisced
Point table, is fixed in the symmetrical both sides endface position of the same diameter line of side shaft coupling, measurement bar respectively with opposite side shaft coupling
End contact, along rotation direction, disk moves rotor, turns over four measurement positions, is respectively vertical, four positions of horizontal direction, note
Record reading, calculated according to reading dehisce, circumference deviation, draw circumference and dehisce figure, bring record data into general formula, and pass through
Circumference figure of dehiscing judges that sign is calculated, and finally draws bearing adjustment amount.
A kind of computational methods of shaft coupling alignment, comprise the following steps：
(1) shaft coupling is connected：Two half a couplers 1 are aligned by combined token as shown in Figure 1, and with the interim pine of pin 2 even
Connect；
(2) installation of measuring instrumentss：The dial gauge 4 and two measurement ends for measuring circumference value by one using Special clip 3
The dehisce dial gauge 5 of value of face is fixed, wherein the dial gauge of measurement circumference value is fixed on excircle, measurement bar joins with second half
Axle device outer circumference surface is contacted, and is measured two dial gauges dehisced and is separately fixed at the symmetrical two side ends of the same diameter line of side shaft coupling
On the position of face, the end contact of measurement bar respectively with opposite side shaft coupling；
(3) data are read：Along rotation direction, disk moves rotor, turns over four measurement positions, is respectively vertical, horizontal direction
Four positions, record reading, as shown in Fig. 2 measuring circumference value and end face successively on 0 °, 90 °, 180 °, 270 ° of 4 positions
It is worth, end face value represents that circumference value is represented with A, B, C, D with an, bn, cn, dn, will measure numerical value and recorded according to shown in Fig. 3,
Adjustment end bearing shaft coupling diameter phi is measured simultaneously, and each bearing of adjustment end rotor is to shaft coupling central point apart from Ln；
(4) data processing：By measure two groups of an, bn, cn, dn, each take the mean and draw a, b, c, d, and in calculating
Heart deviation, value of dehiscing：Horizontal direction Δ α=∣ a-c ∣；Vertical direction Δ α=∣ b-d ∣, circumference value：Horizontal direction Δ β=∣ A-C
∣/2；Vertical direction Δ β=∣ B-D ∣/2；
(5) adjustment amount is calculated：Draw circumference to dehisce figure, as shown in figure 4, bringing record data into general formula, and pass through
Circumference figure of dehiscing judges that sign is calculated, and finally draws bearing adjustment amount.
Wherein, the specific method for judging that sign is calculated by circumference figure of dehiscing is：The adjustment amount of bearing 1 uses calculating
Formula Δ β1=(L1/ φ) × Δ α ± Δs β calculating；The adjustment amount of bearing 2 uses calculation formula Δ β2=((L1+L2)/φ)×Δα
± Δ β is calculated.
Wherein, by taking Fig. 4 as an example, adjustment end rotating shaft in the presence of fixing end relative to dehiscing and upward circumference deviation, to turn
Centered on sub- shaft coupling, remove l watts and 2 watts appropriate spacers below, regulation rotor is revolved by fulcrum of shaft coupling center O from OAB
OCD dotted line positions are gone to, to reach purpose that elimination is dehisced, direction is to the direction dehisced；Formula proving is as follows：Three in figure
Individual triangle △ G E F, △ AOC, △ BOD constitutes similar triangles, and corresponding sides are proportional, and l watts to shaft coupling distance is L1, 2
Watt to l watts of shaft coupling distance be L2, a diameter of φ of shaft coupling, 1 watt of displacement is Δ β1, 2 watts of displacements are Δ β2.Then
Have (watt amount of movement Δ βn/ dehisce Δ α)=(watt to shaft coupling apart from L/ shaft couplings diameter phi), solve：1 watt of adjustment amount Δ β1
=(L1/φ)×Δα；2 watts of adjustment amount Δ β2=((L1+L2)/φ)×Δα0.It is plus circumference value：Δβ1=(L1/φ)×
Δα+Δβ0；2 watts of adjustment amount Δ β2=((L1+L2)/φ)×Δα+Δβ0
Wherein, by taking Fig. 4 as an example, down, upward, the two is in opposite direction, and " ± " takes in formula for circumferencial direction for opening direction
"+", conversely, the two direction is identical, takes "-".
A simply direction described above, when actual calculating, has calculated height direction, then calculate left and right directions.
Above method is summarized as logic chart 5.
Claims (2)
1. a kind of computational methods of shaft coupling alignment, it is characterised in that comprise the following steps：
(1) shaft coupling is connected：Two half a couplers are aligned by combined token, and connected with interim pin pine；
(2) installation of measuring instrumentss：The dial gauge and two measurement end faces of one measurement circumference value are dehisced value using clamp
Dial gauge is fixed, wherein the dial gauge of measurement circumference value is fixed on excircle, measurement bar and another half a coupler excircle
Face is contacted, and is measured two dial gauges dehisced and is separately fixed in the symmetrical both sides endface position of the same diameter line of side shaft coupling,
The end contact of measurement bar respectively with opposite side shaft coupling；
(3) data are read：Along rotation direction, disk moves rotor, and record reading is surveyed successively on 0 °, 90 °, 180 °, 270 ° of 4 positions
The circumference value and end face value gone out, end face value represents that circumference value is represented with A, B, C, D with an, bn, cn, dn, will measure numerical value note
Record, while measuring adjustment end bearing shaft coupling diameter phi, each bearing of adjustment end rotor is to shaft coupling central point apart from Ln；
(4) data processing：By measure two groups of an, bn, cn, dn, each take the mean and draw a, b, c, d, and it is inclined to calculate center
Difference, value of dehiscing：Horizontal direction Δ α=∣ a-c ∣；Vertical direction Δ α=∣ b-d ∣, circumference value：Horizontal direction Δ β=∣ A-C ∣/2；
Vertical direction Δ β=∣ B-D ∣/2；
(5) adjustment amount is calculated：Draw circumference to dehisce figure, bring record data into general formula, and pass through circumference figure of dehiscing and judge
Sign is calculated, and finally draws bearing adjustment amount.
2. the computational methods of shaft coupling alignment according to claim 1, it is characterised in that：Pass through in the step (5)
The specific method that circumference figure judges that sign is calculated of dehiscing is：The adjustment amount of bearing 1 uses calculation formula Δ β1=(L1/φ)
× Δ α ± Δs β is calculated；The adjustment amount of bearing 2 uses calculation formula Δ β2=((L1+L2)/φ) × Δ α ± Δs β calculating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710355220.XA CN107036512A (en) | 2017-05-19 | 2017-05-19 | A kind of computational methods of shaft coupling alignment |
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| CN201710355220.XA CN107036512A (en) | 2017-05-19 | 2017-05-19 | A kind of computational methods of shaft coupling alignment |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168415A (en) * | 2017-08-23 | 2018-06-15 | 华电电力科学研究院 | A kind of new and effective rotation machenical coupling alignment device and its method of adjustment |
| CN109539955A (en) * | 2018-11-08 | 2019-03-29 | 郝鹏飞 | A kind of preparation method of the coaxial calibrating installation of equal diameter bar |
| CN109539954A (en) * | 2018-11-08 | 2019-03-29 | 郝鹏飞 | A kind of application method of the coaxial calibrating installation of equal diameter bar |
| CN110425956A (en) * | 2019-06-27 | 2019-11-08 | 上海宝钢工业技术服务有限公司 | Slewing center support system and its application method based on cell phone application |
| 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 |
| CN110553571A (en) * | 2019-09-10 | 2019-12-10 | 哈尔滨工程大学 | Shafting centering parameter measuring method |
| CN111336900A (en) * | 2020-03-03 | 2020-06-26 | 南京理工大学 | Non-centering adjustment method for permanent magnet eddy current speed regulator |
| CN111644901A (en) * | 2020-04-09 | 2020-09-11 | 武汉船用机械有限责任公司 | Method and device for correcting machining axis of workpiece |
| CN112296760A (en) * | 2020-11-17 | 2021-02-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for correcting coaxiality of journal type blades |
| RU2748150C1 (en) * | 2020-02-07 | 2021-05-19 | федеральное государственное автономное образовательное учреждение высшего образования "Российский университет дружбы народов" (РУДН) | Method for shaft coaxial alignment control |
| CN113358004A (en) * | 2021-05-27 | 2021-09-07 | 华能海南发电股份有限公司电力检修分公司 | Auxiliary device for centering coupler |
| CN113390314A (en) * | 2021-06-11 | 2021-09-14 | 北京京能电力股份有限公司 | Centering method for large axial flow fan double coupler of power plant |
| CN114857471A (en) * | 2022-04-02 | 2022-08-05 | 华能国际电力股份有限公司上海石洞口第二电厂 | Calculation method for quickly calculating central data of horizontal water pump |
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| CN1080717A (en) * | 1992-06-29 | 1994-01-12 | 首钢总公司 | Machenical coupling centering measuring method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168415A (en) * | 2017-08-23 | 2018-06-15 | 华电电力科学研究院 | A kind of new and effective rotation machenical coupling alignment device and its method of adjustment |
| CN109539955A (en) * | 2018-11-08 | 2019-03-29 | 郝鹏飞 | A kind of preparation method of the coaxial calibrating installation of equal diameter bar |
| CN109539954A (en) * | 2018-11-08 | 2019-03-29 | 郝鹏飞 | A kind of application method of the coaxial calibrating installation of equal diameter bar |
| CN110425956A (en) * | 2019-06-27 | 2019-11-08 | 上海宝钢工业技术服务有限公司 | Slewing center support system and its application method based on cell phone application |
| 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 |
| CN110553571A (en) * | 2019-09-10 | 2019-12-10 | 哈尔滨工程大学 | Shafting centering parameter measuring method |
| CN110553571B (en) * | 2019-09-10 | 2021-03-30 | 哈尔滨工程大学 | Shafting centering parameter measuring method |
| RU2748150C1 (en) * | 2020-02-07 | 2021-05-19 | федеральное государственное автономное образовательное учреждение высшего образования "Российский университет дружбы народов" (РУДН) | Method for shaft coaxial alignment control |
| CN111336900B (en) * | 2020-03-03 | 2021-10-26 | 南京理工大学 | Non-centering adjustment method for permanent magnet eddy current speed regulator |
| CN111336900A (en) * | 2020-03-03 | 2020-06-26 | 南京理工大学 | Non-centering adjustment method for permanent magnet eddy current speed regulator |
| CN111644901A (en) * | 2020-04-09 | 2020-09-11 | 武汉船用机械有限责任公司 | Method and device for correcting machining axis of workpiece |
| CN111644901B (en) * | 2020-04-09 | 2022-05-13 | 武汉船用机械有限责任公司 | Method and device for correcting machining axis of workpiece |
| CN112296760A (en) * | 2020-11-17 | 2021-02-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for correcting coaxiality of journal type blades |
| CN113358004A (en) * | 2021-05-27 | 2021-09-07 | 华能海南发电股份有限公司电力检修分公司 | Auxiliary device for centering coupler |
| CN113390314A (en) * | 2021-06-11 | 2021-09-14 | 北京京能电力股份有限公司 | Centering method for large axial flow fan double coupler of power plant |
| CN114857471A (en) * | 2022-04-02 | 2022-08-05 | 华能国际电力股份有限公司上海石洞口第二电厂 | Calculation method for quickly calculating central data of horizontal water pump |
| CN114857471B (en) * | 2022-04-02 | 2024-04-05 | 华能国际电力股份有限公司上海石洞口第二电厂 | Calculation method for rapidly calculating center data of horizontal water pump |
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Application publication date: 20170811 |
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