CN109282735A - A kind of hydraulic generator stator surveys round frame central detection device and detection method - Google Patents
A kind of hydraulic generator stator surveys round frame central detection device and detection method Download PDFInfo
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- CN109282735A CN109282735A CN201811334119.7A CN201811334119A CN109282735A CN 109282735 A CN109282735 A CN 109282735A CN 201811334119 A CN201811334119 A CN 201811334119A CN 109282735 A CN109282735 A CN 109282735A
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 57
- 238000009434 installation Methods 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
-
- 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
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- Manufacture Of Motors, Generators (AREA)
Abstract
The present invention relates to hydropower mechanical and electrical equipment mounting technique fields.It includes that stator surveys round frame, and it includes being mounted on the survey round frame basis of stator center position that stator, which surveys round frame, on the basis of flange is mounted on survey round frame by bottom by survey round frame newel, fixes coil holder surveying at the top of round frame, piano wire is opened up on platform wing plate and launches hole.Its key technology is to install concentricity testing device additional below survey round frame newel to be located at survey round frame Platform center position, in concentricity testing device inner hub location installation center measuring device.The invention has the advantages that: concentricity testing device is installed additional surveying below round frame newel, in concentricity testing device inner hub location installation center measuring device, guarantee that detection device and survey round frame newel are concentric, stator is in machine is cheated during assembling, the center that stator surveys round frame is directly detected on the basis of Component of Hydraulic Turbines base ring seal ring center by the device, guarantees that stator once mounting is in place.
Description
Technical field
The present invention relates to hydropower mechanical and electrical equipment mounting technique fields, in particular to a kind of to exist for hydraulic generator stator
The survey round frame central detection device and detection method assembled in machine hole.
Background technique
Large hydropower station generator unit stator is components arrival, integral by series of processes assembly in building-site,
Stator radius and center measure, control using the stator survey round frame and inside micrometer for being mounted on center in assembling process
System, therefore whether how to detect survey round frame center and be displaced is the key that control stator assembling quality.It is set for cheating interior group in machine
For son, after surveying round frame installation, the center measuring basis (base ring seal ring center) of unit has been hidden by stator assembly platform completely
Gear cannot be verified directly on the basis of base ring seal ring center and survey whether round frame center is located on unit centre.Now generally use
It is counter on out frame to set center monitors datum mark auxiliary examination, adjustment survey round frame center, implemented by following scheme:
1) it after the base of split stator being hung in machine hole group, successively hangs in stator and cheats interior assembly platform, surveys round frame basis,
Lifting is asked above heart beam (seeking heart device containing center alignment device -) to machine hole generator floor stator, suspention piano wire to hydraulic turbine bottom
Ring lower position measures X, Y-axis line using " electrical measuring method " on the basis of base ring seal ring center (the center measuring basis of unit)
The measuring point in direction is to the distance of piano wire, and according to measurement data, movement seeks heart device, is located at piano wire on unit centre, with steel
On the basis of qin line, the distance of measurement out frame lower ring plate X, the corresponding measuring point of Y-axis line to piano wire are moved according to measurement data
Dynamic out frame fixes out frame after so that out frame center and unit centre is located along the same line.
2) it removes and seeks heart beam, installation stator surveys round frame, 4 corresponding with X, Y-axis line direction when the adjustment of out frame center
On the basis of measuring point, it is measured to the distance for surveying round frame newel, according to measurement data, mobile stator surveys round frame, makes to survey in round frame
The heart is located in stator center, namely is located on unit centre, and then adjustment is surveyed round frame verticality and met the requirements, and repetition measurement surveys circle again
Frame center should be met the requirements.
3) on the basis of stator survey round frame newel, X, Y-axis line direction do not influence the position that stator assembles on out frame
It sets and 1 survey round frame Spot detection fixed block is respectively welded, and center monitors datum mark, measuring center prison are carried out in position in its center
The initial distance of datum mark to survey round frame newel is surveyed, and is recorded.In assembling process, direct measuring center monitoring criteria point to survey
The distance of round frame newel is compared with initial value, judges the misalignment for surveying round frame center, and adjusted according to measurement data
It is whole.
The problem of program is: stator surveys round frame Spot detection not enough really, accurately, due to center monitors benchmark
Point by 2 times or more it is counter set determination, there are biggish center antipoints measurement error, and directly using base ring seal ring center as base
Quasi- verification mode is compared, and deviation is up to 0.20mm or more, and in the stator installation in manufacturer's mounting process specification
Heart deviation allowable value is 0.25mm, and data are relatively.So after stator is completed in machine hole, to reduce stator center and machine
The deviation at group center sets up again often after removing survey round frame and stator assembling operation platform and seeks heart beam, hangs piano
Line re-measures stator center, if it exists when relatively large deviation based on base ring seal ring center, it is also necessary to carry out in stator
The secondary adjustment of the heart.In addition vibrated, stator weight the factors such as gradually increases and influences in practice of construction, and stator surveys round frame, stator
Different degrees of displacement can occur, and measured data cannot directly determine bottom and be stator displacements or survey round frame displacement, institute
After surveying round frame or stator adjustment, stator center deviation will increase, and be will also result in after stator assembles when serious in machine hole
Secondary adjustment.Since stator overall stiffness is relatively poor, when adjustment, can generate local extrusion deformation (deformation under external force
Have plastic deformation and flexible deformation), after removing the external force by part rebound (flexible deformation will be sprung back), cause to repeat to adjust, in turn
Influence stator center Adjustment precision.
Summary of the invention
The problem to be solved in the present invention provides a kind of easy to operate aiming above insufficient, and measurement data is accurately used
In the survey round frame central detection device that hydraulic generator stator assembles in machine is cheated.Its technical solution is as follows:
The present invention includes that stator surveys round frame, and it includes being mounted on the survey round frame basis of stator center position that stator, which surveys round frame, is surveyed
Round frame basis is mounted on platform wing plate by supporting leg, and platform wing plate, which is mounted on, to be surveyed on round frame platform, is surveyed round frame newel and is passed through
On the basis of flange is mounted on survey round frame by bottom, coil holder is fixed surveying at the top of round frame, piano wire throwing is opened up on platform wing plate
Discharge hole.Its key technology is to install concentricity testing device additional below survey round frame newel to be located at survey round frame Platform center position,
In concentricity testing device inner hub location installation center measuring device；
The concentricity testing device includes locating flange and the measurement column that is welded on locating flange, locating flange installation
On the basis of surveying round frame, measurement column outer wall in, lower end be respectively equipped with concentricity measurement annulus, be equipped in measurement column lower end inner wall
Center measures annulus；
The center measuring device is the mounting seat in measurement column wall mounting bracket, bracket, and the heart is sought in installation on pedestal
Device is along the circumferential direction evenly distributed with gate hole on pedestal.
It is described survey round frame newel, concentricity testing device, center measuring device center be located along the same line.
The two sides of the locating flange is respectively equipped with concentric inner stopper and male half coupling.
The measurement column is process by thick walled steel tube production, and outer diameter is consistent with the outer diameter of round frame newel is surveyed.
The center that the concentricity measurement annulus, center measure annulus is located along the same line.
The bracket is made by steel plate, for round square hole structure.
It is described to ask heart device pedestal with insulating pad.
The bracket and ask the center of heart device on the same line.
Oil drum is installed surveying round frame mesa base side.
A kind of hydraulic generator stator surveys round frame Spot detection method, key technology be the following steps are included:
1) concentricity for surveying round frame newel and concentricity testing device is checked and is positioned:
1. setting up piano wire surveying on the outside of round frame newel, piano wire lower end connects weight, and weight is put into oil drum；
2. round frame newel is surveyed in measurement respectively and concentricity measures the distance of annulus to piano wire:
Wherein: the distance for surveying round frame newel top measuring point to piano wire is AOn, the distance of lower part measuring point to piano wire is
AUnder；The distance that top concentricity measures annulus to piano wire is BOn, the distance that lower part concentricity measures annulus to piano wire is BUnder；
3. if AOn、AUnder、BOn、BUnderMeasurement data maxima and minima Cha Zhi≤0.05mm, then show concentricity
Detection device center, which is located at, to be surveyed on round frame center, live locating flange；If AOn、AUnder、BOn、BUnderMeasurement data maximum value with most
The difference of small value is greater than 0.05mm, then adjustment is until meet the requirements；
2) stator surveys Spot detection and the adjustment of round frame
1. measuring and adjusting in the piano wire asked on heart device on the basis of the center of the center measurement annulus on measurement column
The heart is located at the center of concentricity testing device, namely is located at and surveys round frame center；
2. on the basis of the center of hydraulic turbine base ring seal ring, measurement piano wire to base ring seal ring X, Y-axis line direction pair
The distance C of measuring point is answered, checks Zhong heart Pian Cha≤0.05mm of corresponding two measuring points of X-direction, the center of corresponding two measuring points of Y-direction
Partially poor≤0.05mm and X, Y-direction synthesis centre deviation value also≤0.05mm, then show stator survey round frame center be located at machine
On group center；If being unsatisfactory for requiring, mobile survey round frame adjustment is needed to be located at its center on unit centre.
Compared with prior art, the invention has the advantages that:
1, the present invention installs concentricity testing device additional below survey round frame newel, in concentricity testing device inside center
Position installation center measuring device guarantees that detection device and survey round frame newel are concentric, during stator assembles in machine is cheated, directly
The center that stator surveys round frame is detected on the basis of Component of Hydraulic Turbines base ring seal ring center by the device, guarantees that stator is once pacified
Dress is in place.
2, in measurement process, heart beam is sought without secondary erection, hangs piano wire.If surveying round frame newel and concentricity being examined
The concentricity measured value deviation of survey device is nonconforming, then only need to install copper additional in a conjunction face for locating flange and survey round frame newel
Pad is until meet the requirements；If stator surveys round frame center and is unsatisfactory for requiring with unit centre value, need to only move survey round frame makes to survey circle
Frame center is located on unit centre.Stator caused by thus being avoided that stator during the secondary tune circle and secondary tune circle in machine hole
Part is squeezed and deformed, and both reduces the construction time, while also improving installation accuracy.
Detailed description of the invention
Fig. 1 is the structure arrangement schematic diagram of concentricity detection of the present invention；
Fig. 2 is Fig. 1 partial structurtes enlarged diagram；
Fig. 3 is the structural schematic diagram of concentricity testing device of the present invention, center measuring device；
Fig. 4 is the structure enlargement diagram of center measuring device；
Fig. 5 is that the present invention asks heart device to install schematic top plan view；
Fig. 6 is that stator of the present invention surveys round frame schematic top plan view；
Fig. 7 is the structure arrangement schematic diagram that stator of the present invention surveys round frame Spot detection；
Fig. 8 is Fig. 7 partial structurtes enlarged diagram；
Fig. 9 is measurement point arrangement schematic diagram in center of the present invention.
Specific embodiment
Below by embodiment, the present invention will be described in detail, should not be understood as the limit to the scope of the present invention
System, those skilled in the art also belong to the present invention according to some nonessential modifications and adaptations that the content of foregoing invention is made
The range of protection.
Referring to FIG. 1 to FIG. 9, the present invention includes that stator surveys round frame, and it includes being mounted on stator center position that stator, which surveys round frame,
Round frame basis 9 is surveyed, round frame basis 9 is surveyed and is mounted on platform wing plate 9.2 by supporting leg 9.4, platform wing plate 9.2 is mounted on survey round frame
On platform 10, surveys that flange 8.1 is installed by bottom on round frame basis 9 and survey round frame newel 8, survey on round frame newel 8 and pacify
Bearing, support arm etc. are filled, in the coil holder 9.1 for surveying fixing belt insulation at the top of round frame for hanging piano wire, is opened up on platform wing plate 9.2
Piano wire launches hole 9.3.Its key technology is to survey installation concentricity testing device 1 below round frame newel 8, concentricity detection
Device 1, which is located at, surveys 10 center of round frame platform, in 1 inner hub location installation center measuring device 2 of concentricity testing device；
The concentricity testing device 1 is Precision Machining part, including locating flange 1.2 and is welded on locating flange 1.2
Measurement column 1.4, locating flange 1.2, which is mounted on, to be surveyed on round frame basis 9, and in 1.4 outer wall of measurement column, lower end is respectively equipped with one heart
Degree measurement annulus 1.5 is equipped with center in 1.4 lower end inner wall of measurement column position corresponding with concentricity measurement annulus 1.5 and measures ring
Band 1.6；
The center measuring device 2 is to be located at the position between two concentricitys measurement annulus 1.5 in 1.4 inner wall of measurement column to pacify
Bracket 2.1 is filled, mounting seat 2.6 on bracket 2.1 seeks (the center centering of heart device 2.2 by the installation of M10 bolt 2.8 on pedestal 2.6
Device), it is furnished with insulating sleeve 2.5 and insulating washer 2.4 when bolt is installed, seeking heart device 2.2 is adjustable structure, in pedestal 2.6
On along the circumferential direction be evenly distributed with 4 be not less than 120mm arc door type holes 2.3, convenient for adjust center measuring device 2 center.
It is described survey round frame newel 8, concentricity testing device 1, center measuring device 2 center be located along the same line.
The two sides of the locating flange 1.2 is respectively equipped with concentric inner stopper 1.3 and male half coupling 1.1, and male half coupling 1.1 is used for
Control and the concentricity for surveying round frame newel 8 guarantee that measurement column 1.4 and survey round frame newel 8 are concentric, and inner stopper 1.3 is for controlling
System and the concentricity for surveying round frame basis 9, are easily installed fixation.
The measurement column 1.4 is process by thick walled steel tube production, outer diameter and the outer diameter one for surveying round frame newel 8
It causes.
The center that the concentricity measurement annulus 1.5, center measure annulus 1.6 is located along the same line.
The bracket 2.1 with a thickness of the steel plate of 30mm by being made, and for round square hole structure, outer diameter is slightly less than measurement column
1.4 internal diameter, square hole periphery are evenly distributed with M10 screw hole.
The pedestal 2.6 has insulating pad 2.7.
The bracket 2.1 and ask the center of heart device 2.2 on the same line.
Oil drum 14 is installed surveying 10 bottom side of round frame platform.
A kind of hydraulic generator stator surveys round frame Spot detection method, key technology be the following steps are included:
1) concentricity for surveying round frame newel 8 and concentricity testing device 1 is checked and is positioned:
1. surveying the close+X in 8 outside of round frame newel, the +Y direction (water flow in units' installation generally to enter power plant building
Walking direction Y-direction, upstream are +Y direction, rotate clockwise 90 degree as +X direction) piano wire 7 is set up, piano wire 7 passes through piano
Line launches hole 9.3, and lower end connects weight 3, and weight 3 is put into oil drum 14；
2. utilize " electrical measuring method " respectively measurement survey round frame newel 8 and concentricity measure annulus 1.5 to piano wire 7 away from
From:
Wherein: the distance for surveying 8 top measuring point of round frame newel to piano wire 7 is AOn, the distance of lower part measuring point to piano wire 7
For AUnder；The distance that top concentricity measures annulus 1.5 to piano wire 7 is BOn, lower part concentricity measurement annulus 1.5 to piano wire
Distance is BUnder；
3. if AOn、AUnder、BOn、BUnderMeasurement data maxima and minima Cha Zhi≤0.05mm, then show survey round frame
The center of newel 8 and concentricity testing device 1 is on the same line namely 1 center of concentricity testing device is located at survey round frame
, can be live with 8 positioning pin nail hole 5 closed on face (faying face) of brill locating flange 1.2 and survey round frame newel on center, and
Penetrate the positioning of pin 6；If AOn、AUnder、BOn、BUnderThe difference of maxima and minima of measurement data be greater than 0.05mm, then fixed
Conjunction face is installed additional copper packing adjustment until meeting the requirements with survey round frame newel 8 by position flange 1.2, then matches brill positioning pin nail hole 5,
Penetrate the positioning of pin 6；
2) stator surveys Spot detection and the adjustment of round frame:
1. utilizing " electrical measuring method " to measure and adjust on the basis of the center of the center measurement annulus 1.6 on measurement column 1.4 and asking
The center of piano wire 7 on heart device 2.2 is located at the center of concentricity testing device 1, namely is located at and surveys round frame center；
2. on the basis of the center of hydraulic turbine base ring seal ring 13, measurement piano wire 7 to base ring seal ring 13X, Y-axis line side
To the distance C of corresponding measuring point (C1, C2, C3, C4), check centre deviation (C1-C3)/2 Ying of corresponding two measuring points of X-direction≤
0.05mm, centre deviation (the C2-C4)/2 Ying≤0.05mm and X of corresponding two measuring points of Y-direction, the center of Y-direction synthesis are inclined
(centre deviation that X, Y-direction synthesize refers to square of the centre deviation of X-direction and the centre deviation of Y-direction to difference Ye≤0.05mm
With open radical sign), then show stator survey round frame center be located on unit centre；If being unsatisfactory for requiring, mobile round frame of surveying is needed to adjust
It is located at its center on unit centre.
In figure, 4 be survey crew's entrance, and 11 be stator assembly platform, and 12 be stator.
Above-mentioned " electrical measuring method " is measurement method in the prior art, refers to the anode of power supply by an electric wire and surveys round frame
It connects, connects with earphone, cathode is connected by an electric wire and piano wire, and (part of the extension piano wire of coil holder is exhausted to piano wire
Edge), survey round frame newel and there is no an any connection, i.e., earphone and piano wire, survey round frame newel and form one in open circuit shape
The series loop of state.Piano wire to the distance for surveying round frame newel is measured using inside micrometer (electric conductor), if interior when measurement
It when diameter micrometer and piano wire, survey round frame newel contact, is then formed into a loop, i.e., earphone, piano wire, survey round frame, internal diameter thousand divide
Ruler forms the series loop of a connection, and what is heard in earphone is the sound of short circuit current, judges steel according to the size of sound
Whether qin line to newel is minimum range.
Claims (10)
1. a kind of hydraulic generator stator surveys round frame central detection device, including stator surveys round frame, and it includes installation that stator, which surveys round frame,
The survey round frame of heart position is basic (9) in the stator, surveys round frame basic (9) by supporting leg (9.4) and is mounted on platform wing plate (9.2)
On, platform wing plate (9.2), which is mounted on, to be surveyed on round frame platform (10), surveys on round frame basic (9) and flange (8.1) are pacified by bottom
Dress surveys round frame newel (8), fixes coil holder (9.1) surveying at the top of round frame, piano wire is opened up on platform wing plate (9.2) and launches hole
(9.3), it is characterized in that installing concentricity testing device (1) additional in survey round frame platform (10) surveying below round frame newel (8)
Heart position, in concentricity testing device (1) inner hub location installation center measuring device (2)；
The concentricity testing device (1) includes locating flange (1.2) and the measurement column that is welded on locating flange (1.2)
(1.4), locating flange (1.2), which is mounted on, surveys on round frame basic (9), and in measurement column (1.4) outer wall, lower end is respectively equipped with one heart
Degree measurement annulus (1.5) is equipped with center measurement annulus (1.6) in measurement column (1.4) lower end inner wall；
The center measuring device (2) is the mounting seat in measurement column (1.4) inner wall mounting bracket (2.1), bracket (2.1)
(2.6), heart device (2.2) are asked in installation on pedestal (2.6), are along the circumferential direction evenly distributed with gate hole (2.3) on pedestal (2.6).
2. hydraulic generator stator surveys round frame central detection device according to claim 1, it is characterised in that survey round frame center
Column (8), concentricity testing device (1), center measuring device (2) center be located along the same line.
3. hydraulic generator stator surveys round frame central detection device according to claim 1, it is characterised in that locating flange
(1.2) two sides is respectively equipped with concentric inner stopper (1.3) and male half coupling (1.1).
4. hydraulic generator stator surveys round frame central detection device according to claim 1, it is characterised in that measurement column (1.4)
It is process by thick walled steel tube production, outer diameter is consistent with the outer diameter of round frame newel (8) is surveyed.
5. hydraulic generator stator surveys round frame central detection device according to claim 1, it is characterised in that concentricity measurement
The center that annulus (1.5), center measure annulus (1.6) is located along the same line.
6. according to claim 1 hydraulic generator stator survey round frame central detection device, it is characterised in that bracket (2.1) by
Steel plate is made, for round square hole structure.
7. hydraulic generator stator surveys round frame central detection device according to claim 1, it is characterised in that pedestal (2.6) band
There are insulating pad (2.7).
8. according to claim 1 hydraulic generator stator survey round frame central detection device, it is characterised in that bracket (2.1) and
Ask the center of heart device (2.2) on the same line.
9. hydraulic generator stator surveys round frame central detection device according to claim 1, it is characterized in that surveying round frame platform
(10) bottom side installation oil drum (14).
10. a kind of hydraulic generator stator surveys round frame Spot detection method, it is characterised in that the following steps are included:
1) concentricity for surveying round frame newel (8) and concentricity testing device (1) is checked and positioning:
1. setting up piano wire (7) surveying on the outside of round frame newel (8), piano wire (7) lower end connects weight (3), and weight (3) is put into
In oil drum (14)；
2. the distance of round frame newel (8) and concentricity measurement annulus (1.5) to piano wire (7) is surveyed in measurement respectively:
Wherein: the distance for surveying round frame newel (8) top measuring point to piano wire (7) is AOn, lower part measuring point to piano wire (7) away from
From for AUnder；The distance that top concentricity measures annulus (1.5) to piano wire (7) is BOn, lower part concentricity measurement annulus (1.5) is extremely
The distance of piano wire is BUnder；
3. if AOn、AUnder、BOn、BUnderMeasurement data maxima and minima Cha Zhi≤0.05mm, then show concentricity detect
Device (1) center, which is located at, to be surveyed on round frame center, and scene positions locating flange；If AOn、AUnder、BOn、BUnderMeasurement data maximum
The difference of value and minimum value is greater than 0.05mm, then adjustment is until meet the requirements；
2) stator surveys Spot detection and the adjustment of round frame:
1. measuring and adjusting and ask on heart device (2.2) on the basis of the center of center measurement annulus (1.6) on measurement column (1.4)
The center of piano wire (7) be located at the center of concentricity testing device (1), namely be located at and survey round frame center；
2. measuring piano wire (7) to base ring seal ring (13) X, Y-axis line on the basis of the center of hydraulic turbine base ring seal ring (13)
Direction corresponds to the distance C of measuring point, checks Zhong heart Pian Cha≤0.05mm of corresponding two measuring points of X-direction, corresponding two measuring points of Y-direction
The Zhong heart Pian Cha≤0.05mm and X, Y-direction synthesis centre deviation Zhi Ye≤0.05mm, then show stator survey round frame center
On unit centre；If being unsatisfactory for requiring, mobile survey round frame adjustment is needed to be located at its center on unit centre.
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| CN201811334119.7A CN109282735A (en) | 2018-11-09 | 2018-11-09 | A kind of hydraulic generator stator surveys round frame central detection device and detection method |
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| CN201811334119.7A CN109282735A (en) | 2018-11-09 | 2018-11-09 | A kind of hydraulic generator stator surveys round frame central detection device and detection method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110274564A (en) * | 2019-07-31 | 2019-09-24 | 江苏南方光纤科技有限公司 | A kind of concentricity calibrating method of high-level device |
| CN111564939A (en) * | 2020-06-02 | 2020-08-21 | 华能澜沧江水电股份有限公司 | Method for centering center of circle measuring frame of rotor of vertical shaft umbrella type hydraulic generator |
| CN112629475A (en) * | 2020-12-02 | 2021-04-09 | 国网甘肃省电力公司刘家峡水电厂 | Large-scale vertical generator center measuring device |
| CN113108678A (en) * | 2021-04-14 | 2021-07-13 | 四川华能涪江水电有限责任公司 | Method for measuring and adjusting center of fixed part of hydroelectric generating set |
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| CN111564939A (en) * | 2020-06-02 | 2020-08-21 | 华能澜沧江水电股份有限公司 | Method for centering center of circle measuring frame of rotor of vertical shaft umbrella type hydraulic generator |
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| CN115342705B (en) * | 2022-09-01 | 2024-04-12 | 中国长江电力股份有限公司 | Method for determining updating and reconstruction reference center of large axial flow rotating paddle type hydroelectric generating set |
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