CN109194068A - A kind of generator unit stator center adjusting device and method - Google Patents
A kind of generator unit stator center adjusting device and method Download PDFInfo
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- CN109194068A CN109194068A CN201811223611.7A CN201811223611A CN109194068A CN 109194068 A CN109194068 A CN 109194068A CN 201811223611 A CN201811223611 A CN 201811223611A CN 109194068 A CN109194068 A CN 109194068A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 61
- 238000009434 installation Methods 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
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- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
A kind of generator unit stator center adjusting device and method, belong to gen-set installation tool and installation method technical field, for adjusting generator unit stator center.Its technical solution is: being respectively fixedly connected with stator center adjustment plate in stator platen two sides, adjustment bolt is opposite respectively across the screw hole of stator center adjustment plate and stator two sides, cooperated by clearance gauge, rotation adjustment bolt carries out transverse shifting to stator, to achieve the purpose that adjust stator center position;The gap of stator and rotor is detected by measurement of air gap block simultaneously, then adjusts the gap of stator and rotor by stator center adjustment plate, adjustment bolt, is reached within air gap average value 10%.Present invention production is simple and convenient to operate, is not subject to conditions, versatile, solve the problems, such as that in installation, stator of steam turbine generator center adjustment amount is small, dynamics is not easy to control, avoid the damage of generator unit stator, installation and repair time are saved, the labor intensity of worker is substantially reduced.
Description
Technical field
The present invention relates to it is a kind of adjustment Turbo-generator Set, TRT generating set stator center position device and method,
Belong to gen-set installation tool and installation method technical field.
Background technique
The adjustment of generator unit stator center, should make generator be fully loaded with it is hot lower identical with rotor magnetic center, together
Magnetic force center of the Shi Dingzi relative to rotor should deviate with reserved value to exciter side, and work as generator amature axial direction position not
By turbine rotor expand passage when, C=0(C: oepration at full load be at generator coupling turbine rotor maximum absolutely
Shift value, mm).Answer uniformity, measured value and same section air gap in the air gap after generator unit stator and rotor installation
Average value difference generally should within air gap average value 10%, maximum no more than 1mm.In previous generator unit stator center tune
In whole process, the method adjustment generator horizontal direction displacement through being tapped frequently with sledgehammer, due to generator unit stator centre bit
The adjustment amount set is quite small, and such method of adjustment is not only time-consuming and laborious, and the percussion dynamics of sledgehammer is not easily controlled, and is repeatedly struck
There is certain damage after hitting to generator unit stator.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of generator unit stator center adjusting device and method, this tune
Engagement positions and method convenient for operation, adjustment amount is small, is easy to control, and can quickly be adjusted in place generator unit stator center, will not
Generator unit stator is damaged, the set-up time can also be saved, reduce the labor intensity of worker.
The technical solution for solving above-mentioned technical problem is:
A kind of generator unit stator center adjusting device, it includes stator center adjustment plate, adjustment bolt, measurement of air gap block, stator
Center adjustment plate is bar steel plate, and there is a screw hole at the plate face center of stator center adjustment plate, and screw hole and adjustment bolt match, four
Block stator center adjustment plate is respectively symmetrically welded on the two sides of stator platen, two pieces of every side, and measurement of air gap block is steel plate block, air gap
The thickness of measuring block matches with the air gap after stator and rotor installation.
Above-mentioned generator unit stator center adjusting device, the measurement of air gap block are two pieces, the maximum of one piece of measurement of air gap block
With a thickness of the 110% of the air gap average value of same section, the minimum thickness of another piece of measurement of air gap block is that the air gap of same section is flat
The 90% of mean value, air gap is uniform between generator unit stator and rotor, and phase mutual deviation is the 5% of air gap average value.
A kind of generator unit stator center adjustment method using above-mentioned generator unit stator center adjusting device, it is using following
Step carries out:
A. the installation site of stator center adjustment plate is determined in stator two sides with steel plate ruler, installation site is at stator platen both ends
Select 4 points of the upper and lower, left and right of same section;
B., four pieces of stator center adjustment plates are respectively symmetrically welded on to the two sides installed position of stator platen, four pieces of stator centers
The plate face of adjustment plate is vertical, the plate faces of four pieces of stator center adjustment plates along stator platen length direction;
C. the position by rotor by upper and lower, left and right every 90 ° marks, and then the rotation steering wheel by rotor when operation is dynamic
Rotor measures the gap between generator rear and front end upper and lower, left and right stator and rotor when the mark point for going to 90 ° is stopped, and turns
Sub-disk is dynamic after a week, and each splaying can obtain four data, take its average value;
D. the height that gasket adjusts stator is adjusted by increase and decrease base;
Adjustment bolt, is first screwed in the screw hole of stator center adjustment plate, distinguishes adjustment bolt by the lateral position for e. adjusting stator
With two side contacts of stator, then the data according to measured by step a determine stator lateral distance, after moving distance determination,
Clearance gauge is fixed on this thickness, the side of stator moving direction by the adjusting bolt in stator center adjustment plate screw hole to
Outer back-out, the distance of back-out are equal to the stator lateral distance measured, this distance is measured with clearance gauge, in the other side of stator
Adjusting bolt in stator center adjustment plate screw hole is screwed in, bolt is adjusted by stator to sinciput, moves stator, until stator is another
Adjustment bolt in side and stator center adjustable plate screw hole is in close contact;
F. measurement of air gap block is inserted into the upper and lower gap of stator and rotor, measures the air gap of stator and rotor, passes through increase and decrease
Base adjust gasket adjustment stator height, make the air gap up and down of stator and rotor be located at two pieces of measurement of air gap blocks thickness it
Between;
G. measurement of air gap block is inserted into the left and right gap of stator and rotor, measures the air gap of stator and rotor, by adjusting
The lateral position for adjusting bolt fine tuning stator in the center adjustment plate screw hole of stator two sides, makes the left and right air gap of stator and rotor
Between the thickness of two pieces of measurement of air gap blocks;
H. after measurement of air gap block can pass through at stator and rotor clearance, its air gap is carried out precisely with 1 meter of clearance gauge
It measures, after the reading for obtaining clearance gauge, the lateral position of stator is finely tuned by the bolt that adjusts in the adjustment plate screw hole of center, and pass through
The air gap value up and down for increasing and decreasing base adjustment gasket adjustment stator, guarantees that air gap value is uniform between generator unit stator and rotor, phase mutual deviation
It is the 5% of air gap average value.
Above-mentioned generator unit stator center adjustment method, measurement stator should be corresponding at the both ends of stator with the relative position of rotor
Point carries out, and marks after determining measurement, to guarantee the accuracy of the adjustment of measurement.
Above-mentioned generator unit stator center adjustment method, generator unit stator length generally at 4 meters or so, with the iron wire of Φ 6 with
The length of measurement of air gap block welding, iron wire is 700-1000mm, stator interior higher depth can be reached, to guarantee measurement of air gap value
Accuracy.
The beneficial effects of the present invention are:
The present invention is respectively fixedly connected with stator center adjustment plate in stator platen two sides, and adjustment bolt passes through stator center adjustment plate
Screw hole and stator two sides it is opposite respectively, cooperated by clearance gauge, rotation adjustment bolt to stator carry out transverse shifting, with reach adjust
Adjust the purpose of subcenter position;The gap of stator and rotor is detected by measurement of air gap block simultaneously, then passes through stator center tune
Whole plate, adjustment bolt adjust the gap of stator and rotor, reach within air gap average value 10%.
The present invention is the pioneering of generator unit stator installation, and there is production to be simple and convenient to operate, is not subject to conditions, general
Property strong advantage, solve that the stator of steam turbine generator center adjustment amount in installation is small, dynamics is not easy to control
Problem overcomes percussion generator unit stator in the prior art and carries out mobile drawback, avoids the damage of generator unit stator, save
Installation and repair time, the labor intensity of worker is substantially reduced, in industry there is fabulous popularizing value.
Detailed description of the invention
Fig. 1 is stator center adjustment schematic device of the invention;
Fig. 2 is the top view of Fig. 1.
It is marked in figure as follows: stator platen 1, stator 2, rotor 3, stator center adjustment plate 4, adjustment bolt 5.
Specific embodiment
Generator unit stator center adjusting device of the invention includes stator center adjustment plate 4, adjustment bolt 5 and measurement of air gap
Block.
It is shown in figure, stator center adjustment plate 4 is bar steel plate, and there are screw hole, spiral shell in the plate face center of stator center adjustment plate 4
Hole matches with adjustment bolt 5, and four pieces of stator center adjustment plates 4 are respectively symmetrically welded on the two sides of stator platen 1, every side two
Group.The plate face of four pieces of stator center adjustment plates 4 is vertical, the plate faces of four pieces of stator center adjustment plates 4 along stator platen 1 length
Direction.
It is shown in figure, four adjustment bolts 5 are each passed through the screw hole at 4 plate face center of stator center adjustment plate, four adjustment
The front end of bolt 5 is in contact with 2 two sides of stator respectively, and rotation adjustment bolt 5 can be with transverse shifting stator 2.
Measurement of air gap block is steel plate block, thickness and the air gap phase after stator 2 and the installation of rotor 3 of measurement of air gap block
Match.Answer uniformity, measured value and same section air gap in the air gap after installing due to generator unit stator 2 and rotor 3
The difference of average value generally should be within air gap average value 10%, and maximum is no more than 1mm.Therefore, measurement of air gap block of the invention is
Two pieces, the 110% of the air gap average value with a thickness of same section of one piece of measurement of air gap block, the thickness of another piece of measurement of air gap block
Be the 90% of the air gap average value of same section, the thickness of two pieces of measurement of air gap blocks and air gap average value difference be 1mm, to reach
To above-mentioned requirements.
When making measurement of air gap block, since 2 length of generator unit stator is generally at 4 meters or so, measurement of air gap block needs are stretched
Enter and measure gap in generator unit stator 2, therefore with the iron wire of Φ 6 and measurement of air gap block welding, the length of iron wire is 700-
1000mm can reach 2 deeper inside of stator, to guarantee the accuracy of measurement of air gap value.
Generator unit stator center adjustment method of the invention, it is carried out using following steps:
The first step determines the installation site of stator center adjustment plate 4 in stator two sides with steel plate ruler, and installation site is in stator platform
1 both ends of plate select 4 points of the upper and lower, left and right of same section;
Four pieces of stator center adjustment plates 4, are respectively symmetrically welded on the two sides installed position of stator platen 1 by second step, and four pieces
The plate face of stator center adjustment plate 4 is vertical, the plate faces of four pieces of stator center adjustment plates 4 along stator platen 1 length direction;
Third step, the position by rotor 3 by upper and lower, left and right every 90 ° mark, then by the rotation of rotor 3 when operation
Steering wheel turn 3 measures generator rear and front end upper and lower, left and right stator 2 and rotor 3 when the mark point for going to 90 ° is stopped
Between gap, 3 disk of rotor is dynamic after a week, and each splaying can obtain four data, take its average value;
4th step adjusts the height that gasket adjusts stator 2 by increase and decrease base;
5th step adjusts the lateral position of stator 2, and adjustment bolt 5 is first screwed in the screw hole of stator center adjustment plate 4, makes to adjust
Bolt 5 is respectively with 2 liang of side contacts of stator, and then the data according to measured by step 1 determine 2 lateral distance of stator, mobile
After distance determines, clearance gauge is fixed on this thickness, in the side of 2 moving direction of stator by 1 screw hole of stator center adjustment plate
In adjusting bolt 5 screw out outward, the distance of back-out is equal to 2 lateral distance of stator measured, this distance is surveyed with clearance gauge
, the adjusting bolt 5 in 4 screw hole of stator center adjustment plate is screwed in the other side of stator 2, adjust bolt 5 by stator 2 forward
Top, mobile stator 2, until the adjustment bolt 5 in 2 other side of stator and 4 screw hole of stator center adjustable plate is in close contact;
Measurement of air gap block is inserted into the upper and lower gap of stator 2 and rotor 3 by the 6th step, measures the air gap of stator 2 and rotor 3,
The height that gasket adjusts stator 2 is adjusted by increase and decrease base, the air gap up and down of stator 2 and rotor 3 is made to be located at two pieces of measurement of air gap
Between the thickness of block;
When measurement of air gap block being inserted into the upper and lower gap of stator 2 and rotor 3, gap to be made to be less than average airgap
110%, while being greater than the 90% of average airgap, i.e. the big measurement of air gap block of thickness can not be inserted into, and the air gap survey that thickness is small
Gauge block is inserted into.
Measurement of air gap block is inserted into the left and right gap of stator 2 and rotor 3 by the 7th step, measures stator 2 and rotor 3
Air gap, by adjusting the lateral position for adjusting bolt 5 and finely tuning stator 2 in 4 screw hole of center adjustment plate of 2 two sides of stator, it is fixed to make
The left and right air gap of son 2 and rotor 3 is located between the thickness of two pieces of measurement of air gap blocks.
8th step, after measurement of air gap block can pass through at stator and rotor clearance, with 1 meter of clearance gauge to its air gap
It is accurately measured, after the reading for obtaining clearance gauge, passes through the transverse direction for adjusting bolt 5 and finely tuning stator 2 in 4 screw hole of center adjustment plate
Position, and the air gap value up and down that gasket adjusts stator 2 is adjusted by increase and decrease base, guarantee air gap value between generator unit stator and rotor
Uniformly, phase mutual deviation is the 5% of air gap average value.
During above-mentioned adjustment, the relative position of measurement stator 2 and rotor 3 should be carried out in the both ends corresponding points of stator 2,
It is marked after determining measurement, to guarantee the accuracy of the adjustment of measurement.
One embodiment of the present of invention is as follows:
In the generator side installation process of 4# generating set, the air gap value of generating set installation specification stator 2 and rotor 3
For 22mm, centering is carried out to generating set using generator unit stator center adjusting device.
The length of stator center adjustment plate 4 is 100mm, width 80mm, with a thickness of 30mm;Adjustment bolt 5 is M30 spiral shell
Bolt;The length of measurement of air gap block is 40mm, and width 25mm, the thickness of two pieces of measurement of air gap blocks is respectively 24mm and 20mm.4#
2 length of generator unit stator is 4 meters, and selecting length is the iron wire of 1000mm, is used with measurement of air gap block welding.
2 higher depth of Stator is protruded into using the measurement of air gap block with a thickness of 20mm, when the measurement of air gap block of 20mm
After stator 2 and 3 gap location of rotor can pass through, its air gap is accurately measured with 1 meter of clearance gauge.The numerical value measured is inclined
Difference adjusts gasket by the lateral position for adjusting bolt 5 and finely tuning stator 2 in 4 screw hole of center adjustment plate, and by increase and decrease base
Adjust the air gap value up and down of stator 2.
After the fastening foundation bolt of 4# generating set electricity generator side, the air gap values of its upper and lower, left and right of repetition measurement be 22.2mm,
21.8mm, 22mm, 22mm, complying fully with air gap between generator unit stator 2 and rotor 3 should uniformly, and phase mutual deviation is air gap average value
5% installation specification.
Claims (5)
1. a kind of generator unit stator center adjusting device, it is characterised in that: it includes stator center adjustment plate (4), adjustment bolt
(5), measurement of air gap block, stator center adjustment plate (4) are bar steel plate, and there is screw hole at the plate face center of stator center adjustment plate (4),
Screw hole matches with adjustment bolt (5), and four pieces of stator center adjustment plates (4) are respectively symmetrically welded on the two of stator platen (1)
Side, two pieces of every side, measurement of air gap block are steel plate block, the air after the thickness of measurement of air gap block and stator (2) and rotor (3) installation
Gap matches.
2. generator unit stator center adjusting device according to claim 1, it is characterised in that: the measurement of air gap block is two
Block, the 110% of the air gap average value with a thickness of same section of one piece of measurement of air gap block, another piece of measurement of air gap block with a thickness of
The 90% of the air gap average value of same section, the thickness of two pieces of measurement of air gap blocks and air gap average value difference be 1mm.
3. a kind of generator unit stator center adjustment method using above-mentioned generator unit stator center adjusting device, it is characterised in that:
It is carried out using following steps:
The installation site of stator center adjustment plate (4) is determined in stator (2) two sides with steel plate ruler, and installation site is in stator platen
(1) both ends select 4 points of the upper and lower, left and right of same section;
Four pieces of stator center adjustment plates (4) are respectively symmetrically welded on to the two sides installed position of stator platen (1), four pieces of stators
The plate face of center adjustment plate (4) is vertical, the plate faces of four pieces of stator center adjustment plates (4) along stator platen (1) length direction;
Position by rotor (3) by upper and lower, left and right every 90 ° marks, then by the direction of rotation of rotor (3) when operation
Disk turn is sub (3), when the mark point for going to 90 ° is stopped, measures generator rear and front end upper and lower, left and right stator (2) and rotor
(3) gap between, rotor (3) disk is dynamic after a week, and each splaying can obtain four data, take its average value;
The height of gasket adjustment stator (2) is adjusted by increase and decrease base;
The lateral position of stator (2) is adjusted, adjustment bolt (5) are first screwed in the screw hole of stator center adjustment plate (4), makes to adjust spiral shell
Bolt (5) is respectively with (2) two side contacts of stator, and then the data according to measured by step a determine stator (2) lateral distance,
After moving distance determines, clearance gauge is fixed on this thickness, in the side of stator (2) moving direction by stator center adjustment plate
(4) the adjusting bolt (5) in screw hole screws out outward, and the distance of back-out is equal to stator (2) lateral distance measured, this away from
It is measured from clearance gauge, the adjusting bolt (5) in stator center adjustment plate (4) screw hole is screwed in the other side of stator (2), is adjusted
Bolt (5) to sinciput, moves stator (2) stator (2), until in stator (2) other side and stator center adjustable plate (4) screw hole
Adjustment bolt (5) be in close contact;
Measurement of air gap block is inserted into the upper and lower gap of stator (2) and rotor (3), measures the gas of stator (2) and rotor (3)
Gap is adjusted the height of gasket adjustment stator (2) by increase and decrease base, the air gap up and down of stator (2) and rotor (3) is made to be located at two pieces
Between the thickness of measurement of air gap block;
Measurement of air gap block is inserted into the left and right gap of stator (2) and rotor (3), measures the gas of stator (2) and rotor (3)
Gap, by adjusting the lateral position of adjusting bolt (5) fine tuning stator (2) in center adjustment plate (4) screw hole of stator (2) two sides
It sets, is located at the left and right air gap of stator (2) and rotor (3) between the thickness of two pieces of measurement of air gap blocks;
When measurement of air gap block is after stator (2) and rotor (3) gap location can pass through, its air gap is carried out with 1 meter of clearance gauge
It accurately measures, after the reading for obtaining clearance gauge, stator (2) is finely tuned by the adjusting bolt (5) in stator center adjustment plate (4) screw hole
Lateral position, and adjust by increase and decrease base the air gap value up and down of gasket adjustment stator (2), guarantee generator unit stator and rotor
Between air gap value it is uniform, phase mutual deviation be air gap average value 5%.
4. generator unit stator center adjustment method according to claim 3, it is characterised in that: measurement stator (2) and rotor
(3) relative position should be carried out in the both ends corresponding points of stator (2), be marked after determining measurement, to guarantee the adjustment of measurement
Accuracy.
5. generator unit stator center adjustment method according to claim 3, it is characterised in that: generator unit stator (2) length
Generally at 4 meters or so, the length of iron wire and measurement of air gap block welding with Φ 6, iron wire is 700-1000mm, can reach stator
(2) deeper inside, to guarantee the accuracy of measurement of air gap value.
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CN201811223611.7A CN109194068B (en) | 2018-10-19 | 2018-10-19 | Generator stator center adjusting device and method |
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CN201811223611.7A CN109194068B (en) | 2018-10-19 | 2018-10-19 | Generator stator center adjusting device and method |
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CN109194068B CN109194068B (en) | 2023-10-27 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN111106729A (en) * | 2020-01-16 | 2020-05-05 | 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) | Motor stator and rotor countershaft assembly method |
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JPH07241050A (en) * | 1994-02-25 | 1995-09-12 | Hino Motors Ltd | Motor gap adjuster for electric automobile |
CN101635488A (en) * | 2009-08-26 | 2010-01-27 | 中冶集团华冶资源开发有限责任公司 | Method for aligning concentricity of exciter rotor and generator rotor of turbogenerator |
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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 |
CN111106729A (en) * | 2020-01-16 | 2020-05-05 | 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) | Motor stator and rotor countershaft assembly method |
CN111106729B (en) * | 2020-01-16 | 2021-04-30 | 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) | Motor stator and rotor countershaft assembly method |
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