CN107389004A - Sound and light measurement instrument and its measuring method for the installation of turbine-generator units central shaft - Google Patents
Sound and light measurement instrument and its measuring method for the installation of turbine-generator units central shaft Download PDFInfo
- Publication number
- CN107389004A CN107389004A CN201710701605.7A CN201710701605A CN107389004A CN 107389004 A CN107389004 A CN 107389004A CN 201710701605 A CN201710701605 A CN 201710701605A CN 107389004 A CN107389004 A CN 107389004A
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- China
- Prior art keywords
- hollow stem
- sound
- turbine
- central shaft
- generator units
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of sound and light measurement instrument for the installation of turbine-generator units central shaft and its measuring method, sound and light measurement instrument to include：First hollow stem, through hole is offered on its bar wall；Battery, in the first hollow stem, an electrode of battery electrically connects with the first hollow stem；Buzzer, it is electrically connected in the first hollow stem and close to the through hole of the first hollow stem, an electrode of buzzer with another electrode of battery；Insulated hollow bar, its one end couple with one end of the first hollow stem；Second hollow stem, its one end couple with the other end of insulated hollow bar, and the second hollow stem and the first hollow stem circuit isolation, the second hollow stem are electrically connected with another electrode of buzzer；Micrometer microdrum, its housing couple and are electrically connected with the second hollow stem；Micrometer couples and is electrically connected with the other end of the first hollow stem to extension bar, its one end.The present invention has high, easy to use, operating efficiency the is high beneficial effect of measurement accuracy.
Description
Technical field
The present invention relates to a kind of sound and light measurement instrument and its measuring method for the installation of turbine-generator units central shaft, belong to
Detection field, and in particular to the unit concentricity of power station power-equipment turbine-generator units, stator assembling, main shaft axiality etc.
A kind of measuring instrument of the Precision measurement of great part.
Background technology
In current hydraulic turbine equipment manufacturing and power station assembled in situ, because detection object is larger, detection device is limited,
Installation accuracy requires high, when carrying out axiality, concentricity measurement, is used as benchmark by messenger wire plus suspension taper weight, then
Object of reference is found by measurement, constructed according to object of reference.Because the precision of measurement is difficult to control, the precision of reference position
Also it is just not high, have influence on installation accuracy.
The content of the invention
The present invention according to the above deficiency, provide it is a kind of for turbine-generator units central shaft installation sound and light measurement instrument and
Its measuring method.0.01 millimeter of installation accuracy can be obtained by the measuring instrument.
The technical scheme is that：
A kind of sound and light measurement instrument for the installation of turbine-generator units central shaft, it is characterized in that, including：
First hollow stem, through hole is offered on its bar wall；
Battery, in the first hollow stem, an electrode of battery electrically connects with the first hollow stem；
Buzzer, it can be sent in the first hollow stem and close to the through hole of the first hollow stem, the sound of buzzer out of through hole
Go out, an electrode of buzzer is electrically connected with another electrode of battery；
Insulated hollow bar, its one end couple with one end of the first hollow stem；
Second hollow stem, its one end couple with the other end of insulated hollow bar, the second hollow stem and the first hollow stem circuit isolation,
Second hollow stem is electrically connected with another electrode of buzzer；
Micrometer microdrum, its housing couple and are electrically connected with the second hollow stem, and the measurement head of micrometer microdrum is hanging；
Micrometer couples and is electrically connected with the other end of the first hollow stem to extension bar, its one end, and its other end is hanging；
When the first hollow stem and the second hollow stem connect through outer lead, buzzer energization sounding.
It should be noted that because the size of turbine-generator units central shaft varies, micrometer docking pole-footing is not according to
Same size can use different length, and micrometer microdrum is mainly that high-acruracy survey is conveniently to adjust, it is clear that micrometer
The precision of microdrum is exactly the precision that the present invention measures.
In order to be worked under noisy environment, in addition to LED, LED are arranged in first hollow stem and close
The through hole of first hollow stem, the through hole can be used to observe LED, and LED is connected with described buzzer.By acousto-optic simultaneously its
Suggesting effect.
In order to change conveniently, second hollow stem passes through thread connection with the micrometer microdrum.
First hollow stem passes through thread connection with micrometer to extension bar.
Preferably, also including long fixed jackscrew, one end of long fixed jackscrew electrically connects with second hollow stem, long solid
The other end for determining jackscrew electrically connects with the LED.
Also include short fixed jackscrew, one end of short fixed jackscrew electrically connects with the battery, the other end of short fixed jackscrew
Electrically connected with first hollow stem.
The invention also discloses a kind of measuring method of the sound and light measurement instrument for the installation of turbine-generator units central shaft, bag
The described sound and light measurement instrument for being used for the installation of turbine-generator units central shaft is included, it is characterized in that, as follows：
Step A, preparing the center upper lifting metal wire of installation turbine-generator units central shaft, the lower section of metal wire hangs
Hang taper weight；
Step B, centered on taper weight, circular arc line is drawn, multiple metal objects of reference are set on circular arc line；
Step C, metal object of reference is electrically connected with metal wire by wire；
Step D, the both ends horizontal of sound and light measurement instrument is placed between metal object of reference and metal wire；
Step E, by adjusting micrometer microdrum, the distance between metal object of reference and metal wire are measured, finally moves metal
The position of object of reference, when sound and light measurement instrument, which just reaches foot, sends sound and light, the length of sound and light measurement instrument be exactly metal object of reference with
Length between metal wire；
Step F so that multiple metal objects of reference are equal to the distance between metal wire, so as to true by multiple metal objects of reference energy
Determine the center line below turbine-generator units central shaft；
Step G, multiple metal objects of reference above turbine-generator units central shaft are determined by same method；
Step H, removes metal wire, fixed metal object of reference, and metal object of reference can be used for the installation of turbine-generator units central shaft
Benchmark.
Preferably, the multiple metal object of reference is shaped as arc-shaped, the described metal wire of circular arc concave surface alignment.
Preferably, the metal object of reference is provided with more than four.
Preferably, the metal wire is piano wire.
The present invention has beneficial effect simple in construction, cost is low, measurement accuracy is high, easy to use, operating efficiency is high.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Embodiment
In conjunction with accompanying drawing, the present invention is further illustrated：
As illustrated, a kind of sound and light measurement instrument for the installation of turbine-generator units central shaft, including：
First hollow stem 11, through hole 6 is offered on its bar wall；
Battery 3, in the first hollow stem 11, an electrode of battery 3 electrically connects with the first hollow stem 11；Battery 3 is optional
Use rechargeable battery；
Buzzer 4, in the first hollow stem 11 and close to the through hole 6 of the first hollow stem 11, the sound of buzzer 4 can be from logical
Sent out in hole, an electrode of buzzer 4 is electrically connected with another electrode of battery 3；Commercially available active buzzing can be selected in buzzer 4
Device；
Insulated hollow bar 7, its one end couple with one end of the first hollow stem 11；
Second hollow stem 12, its one end couple with the other end of insulated hollow bar 7, the second hollow stem 12 and the electricity of the first hollow stem 11
Road is insulated, and the second hollow stem 12 is electrically connected with another electrode of buzzer 4；
Micrometer microdrum 81, its housing couple and are electrically connected with the second hollow stem 12, and the measurement head of micrometer microdrum 81 is hanged
It is empty；
Micrometer couples and is electrically connected with the other end of the first hollow stem 11 to extension bar 82, its one end, and its other end is hanging；
When the first hollow stem 11 connects with the second hollow stem 12 through outer lead, the energization sounding of buzzer 3.
Also include LED 5, LED 5 is arranged in the first hollow stem 11 and close to the through hole 6 of the first hollow stem 11, this is logical
Hole 6 can be used to observe LED 5, and LED 5 is connected with buzzer 4.
Second hollow stem 12 passes through thread connection with micrometer microdrum 81.
First hollow stem 11 passes through thread connection with micrometer to extension bar 82.
Also include long fixed jackscrew 22, one end of long fixed jackscrew 22 electrically connects with the second hollow stem 12, long fixed jackscrew
22 other end electrically connects with LED 5.
Also include short fixed jackscrew 21, one end of short fixed jackscrew 21 electrically connects with battery 3, short fixed jackscrew 21 it is another
End electrically connects with the first hollow stem 11.
0.01mm, range 25mm can be selected in the precision of this micrometer microdrum, rotates clockwise rotating cylinder to increase, the inverse time
Pin, which rotates to be, to be subtracted, and often rotates lattice reading change 0.01mm.The metering system of microdrum：According to screw principle, work as differential
Cylinder（Also known as movable mark cylinder）When rotating a circle, micrometric screw advances or one 0.5 millimeter of pitch of retrogressing.So, microdrum is worked as
After one indexing of rotation, it has turned over 1/50 week, and at this moment screw rod moves 1/50 × 0.5 millimeter=0.01 millimeter along axis, because
This, 0.01 millimeter of numerical value can be accurately read using micrometer.
A kind of measuring method of sound and light measurement instrument for the installation of turbine-generator units central shaft, including for hydraulic generator
The sound and light measurement instrument of unit centre axle installation, as follows：
Step A, preparing the center upper lifting metal wire of installation turbine-generator units central shaft, the lower section of metal wire hangs
Hang taper weight；
Step B, centered on taper weight, circular arc line is drawn, multiple metal objects of reference are set on circular arc line；
Step C, metal object of reference is electrically connected with metal wire by wire；
Step D, the both ends horizontal of sound and light measurement instrument is placed between metal object of reference and metal wire；
Step E, by adjusting micrometer microdrum, the distance between metal object of reference and metal wire are measured, finally moves metal
The position of object of reference, when sound and light measurement instrument, which just reaches foot, sends sound and light, the length of sound and light measurement instrument be exactly metal object of reference with
Length between metal wire；
Step F so that multiple metal objects of reference are equal to the distance between metal wire, so as to true by multiple metal objects of reference energy
Determine the center line below turbine-generator units central shaft；
Step G, multiple metal objects of reference above turbine-generator units central shaft are determined by same method；
Step H, removes metal wire, fixed metal object of reference, and metal object of reference can be used for the installation of turbine-generator units central shaft
Benchmark.
Multiple metal objects of reference are shaped as arc-shaped, circular arc concave surface alignment metal wire.
Metal object of reference is provided with more than four.
Metal wire is piano wire.
Claims (10)
1. a kind of sound and light measurement instrument for the installation of turbine-generator units central shaft, it is characterized in that, including：
First hollow stem, through hole is offered on its bar wall；
Battery, in the first hollow stem, an electrode of battery electrically connects with the first hollow stem；
Buzzer, it can be sent in the first hollow stem and close to the through hole of the first hollow stem, the sound of buzzer out of through hole
Go out, an electrode of buzzer is electrically connected with another electrode of battery；
Insulated hollow bar, its one end couple with one end of the first hollow stem；
Second hollow stem, its one end couple with the other end of insulated hollow bar, the second hollow stem and the first hollow stem circuit isolation,
Second hollow stem is electrically connected with another electrode of buzzer；
Micrometer microdrum, its housing couple and are electrically connected with the second hollow stem, and the measurement head of micrometer microdrum is hanging；
Micrometer couples and is electrically connected with the other end of the first hollow stem to extension bar, its one end, and its other end is hanging；
When the first hollow stem and the second hollow stem connect through outer lead, buzzer energization sounding.
2. a kind of sound and light measurement instrument for the installation of turbine-generator units central shaft as claimed in claim 1, it is characterized in that, also
Including LED, LED is arranged in first hollow stem and can be used to observe close to the through hole of the first hollow stem, the through hole
LED, LED are connected with described buzzer.
3. a kind of sound and light measurement instrument for the installation of turbine-generator units central shaft as claimed in claim 1, it is characterized in that, institute
State the second hollow stem and pass through thread connection with the micrometer microdrum.
4. a kind of sound and light measurement instrument for the installation of turbine-generator units central shaft as claimed in claim 1, it is characterized in that, institute
State the first hollow stem and thread connection is passed through to extension bar with micrometer.
5. a kind of sound and light measurement instrument for the installation of turbine-generator units central shaft as claimed in claim 2, it is characterized in that, also
Including long fixed jackscrew, one end of long fixed jackscrew electrically connects with second hollow stem, the other end of long fixed jackscrew and institute
State LED electrical connection.
6. a kind of sound and light measurement instrument for the installation of turbine-generator units central shaft as claimed in claim 1, it is characterized in that, also
Including short fixed jackscrew, one end of short fixed jackscrew electrically connects with the battery, the other end of short fixed jackscrew and described first
Hollow stem electrically connects.
7. a kind of measuring method of sound and light measurement instrument for the installation of turbine-generator units central shaft, including such as claim 1-6
The sound and light measurement instrument for being used for the installation of turbine-generator units central shaft described in any one, it is characterized in that, as follows：
Step A, preparing the center upper lifting metal wire of installation turbine-generator units central shaft, the lower section of metal wire hangs
Hang taper weight；
Step B, centered on taper weight, circular arc line is drawn, multiple metal objects of reference are set on circular arc line；
Step C, metal object of reference is electrically connected with metal wire by wire；
Step D, the both ends horizontal of sound and light measurement instrument is placed between metal object of reference and metal wire；
Step E, by adjusting micrometer microdrum, the distance between metal object of reference and metal wire are measured, finally moves metal
The position of object of reference, when sound and light measurement instrument, which just reaches foot, sends sound and light, the length of sound and light measurement instrument be exactly metal object of reference with
Length between metal wire；
Step F so that multiple metal objects of reference are equal to the distance between metal wire, so as to true by multiple metal objects of reference energy
Determine the center line below turbine-generator units central shaft；
Step G, multiple metal objects of reference above turbine-generator units central shaft are determined by same method；
Step H, removes metal wire, fixed metal object of reference, and metal object of reference can be used for the installation of turbine-generator units central shaft
Benchmark.
8. a kind of measuring method of sound and light measurement instrument for the installation of turbine-generator units central shaft as claimed in claim 7,
It is characterized in that the multiple metal object of reference is shaped as arc-shaped, the described metal wire of circular arc concave surface alignment.
9. a kind of measuring method of sound and light measurement instrument for the installation of turbine-generator units central shaft as claimed in claim 8,
It is characterized in that the metal object of reference is provided with more than four.
10. a kind of measuring method of sound and light measurement instrument for the installation of turbine-generator units central shaft as claimed in claim 8,
It is characterized in that the metal wire is piano wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710701605.7A CN107389004B (en) | 2017-08-16 | 2017-08-16 | Acousto-optic measuring instrument for central shaft installation of hydroelectric generating set and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710701605.7A CN107389004B (en) | 2017-08-16 | 2017-08-16 | Acousto-optic measuring instrument for central shaft installation of hydroelectric generating set and measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107389004A true CN107389004A (en) | 2017-11-24 |
| CN107389004B CN107389004B (en) | 2023-09-26 |
Family
ID=60353350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710701605.7A Active CN107389004B (en) | 2017-08-16 | 2017-08-16 | Acousto-optic measuring instrument for central shaft installation of hydroelectric generating set and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107389004B (en) |
Citations (7)
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|---|---|---|---|---|
| JP2004286477A (en) * | 2003-03-19 | 2004-10-14 | Babcock Hitachi Kk | Core dislocation measuring unit |
| JP2008111694A (en) * | 2006-10-30 | 2008-05-15 | Jfe Steel Kk | Apparatus and method for measuring perpendicularity of roll and centering the same |
| CN101482386A (en) * | 2009-02-09 | 2009-07-15 | 浙江富春江水电设备股份有限公司 | Piano wire-optoelectronic differentiator |
| CN203177789U (en) * | 2013-03-27 | 2013-09-04 | 太原重工股份有限公司 | A verticality buzzing measuring instrument |
| JP2015219105A (en) * | 2014-05-16 | 2015-12-07 | 中国電力株式会社 | Support device for inside micrometer |
| CN205748305U (en) * | 2016-06-27 | 2016-11-30 | 江苏淮源工程建设监理有限公司 | A kind of pumping plant vertical unit axiality detection device |
| CN207123265U (en) * | 2017-08-16 | 2018-03-20 | 浙江富春江水电设备有限公司 | Sound and light measurement instrument for the installation of turbine-generator units central shaft |
-
2017
- 2017-08-16 CN CN201710701605.7A patent/CN107389004B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004286477A (en) * | 2003-03-19 | 2004-10-14 | Babcock Hitachi Kk | Core dislocation measuring unit |
| JP2008111694A (en) * | 2006-10-30 | 2008-05-15 | Jfe Steel Kk | Apparatus and method for measuring perpendicularity of roll and centering the same |
| CN101482386A (en) * | 2009-02-09 | 2009-07-15 | 浙江富春江水电设备股份有限公司 | Piano wire-optoelectronic differentiator |
| CN203177789U (en) * | 2013-03-27 | 2013-09-04 | 太原重工股份有限公司 | A verticality buzzing measuring instrument |
| JP2015219105A (en) * | 2014-05-16 | 2015-12-07 | 中国電力株式会社 | Support device for inside micrometer |
| CN205748305U (en) * | 2016-06-27 | 2016-11-30 | 江苏淮源工程建设监理有限公司 | A kind of pumping plant vertical unit axiality detection device |
| CN207123265U (en) * | 2017-08-16 | 2018-03-20 | 浙江富春江水电设备有限公司 | Sound and light measurement instrument for the installation of turbine-generator units central shaft |
Non-Patent Citations (1)
| Title |
|---|
| 吴松建;: "水轮发电机组轴系动力特性及轴线精度检测方法研究", 低碳世界, no. 10, pages 45 - 46 * |
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| Publication number | Publication date |
|---|---|
| CN107389004B (en) | 2023-09-26 |
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