CN114094776B - A method for efficiently installing positioning ribs and a measuring tool for stator positioning ribs - Google Patents
A method for efficiently installing positioning ribs and a measuring tool for stator positioning ribs Download PDFInfo
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- CN114094776B CN114094776B CN202111354810.3A CN202111354810A CN114094776B CN 114094776 B CN114094776 B CN 114094776B CN 202111354810 A CN202111354810 A CN 202111354810A CN 114094776 B CN114094776 B CN 114094776B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 32
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 238000003466 welding Methods 0.000 claims description 16
- 238000000691 measurement method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 4
- 238000011900 installation process Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000011166 aliquoting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004441 surface measurement Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- 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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
-
- 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
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
-
- 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
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
- G01B5/143—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between holes on a workpiece
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
本发明公开了一种定位筋高效安装方法及定子定位筋的测量工具，通过提供了测量工具在安装过程中调整定位筋。有效的减小大等分定位筋安装由加工精度和测量误差引起的弦距偏差；有效的提高施工效率，在大等分定位筋上、下环安装完成后，就可以开始小等分定位筋的安装；可以有效控制定位筋垂直度，不会影响整体倾斜的质量问题。
The invention discloses an efficient installation method of positioning ribs and a measuring tool for stator positioning ribs, and provides a measuring tool to adjust the positioning ribs during the installation process. The chord deviation caused by machining accuracy and measurement error in the installation of large equally divided positioning ribs is effectively reduced; the construction efficiency is effectively improved, and after the installation of the upper and lower rings of the large equally divided positioning ribs is completed, the installation of the small equally divided positioning ribs can be started; the verticality of the positioning ribs can be effectively controlled, and the quality problem of the overall tilt will not be affected.
Description
Technical Field
The invention relates to the field of mechanical installation tools, in particular to a high-efficiency installation method of positioning ribs and a measuring tool of stator positioning ribs.
Background
At present, the technical requirements of hydroelectric engineering construction are continuously improved, for example, the diameter of a stator unit of a 700-1000 MW large-sized hydroelectric generating set reaches more than ten meters, the points to be measured are more than 2000, the size of the points directly affects the subsequent iron core stacking and stator offline construction quality, and therefore, when the positioning ribs of the stator are installed, the perpendicularity of the positioning ribs and the distance between adjacent positioning ribs are required to be controlled within 0.15mm, but the measuring error of the conventional measuring tool is large when the measuring tool is used, and data support cannot be effectively provided for construction.
Meanwhile, the installation of the positioning ribs for the hydropower engineering construction is mostly carried out by adopting a large-scale equal-division method, and because the positioning ribs of a large-scale power station are large in number and large in equal-division, the adjustment of the chord distance of each ring is influenced by the processing precision of the positioning ribs, and accumulated errors are easily generated to influence the installation quality and progress. Therefore, a new installation method is needed to solve the problem of cumulative error of the chord distance.
Disclosure of Invention
The invention aims to provide a high-efficiency installation method of a positioning rib and a measuring tool of a stator positioning rib, which are suitable for measuring the chord distance and the verticality of the positioning rib, and improve the measuring accuracy of the positioning rib and the measuring efficiency.
The invention discloses a high-efficiency installation method of a positioning rib, which comprises the following steps:
Step1, hanging a reference positioning rib on a stator frame, and preliminarily fixing the reference positioning rib by adopting a single-head spiral jacking column and a C-shaped clamp;
step 2, measuring verticality of the piano wire on the radial and circumferential directions of the reference positioning rib by adopting an electrical measurement method through a disc measuring tool and an opening measuring tool, adjusting according to a measurement result, and hanging large equal-division positioning ribs after the reference positioning rib is adjusted to be qualified;
step 3, measuring chord distances of the large-division positioning ribs and measuring radii of the circular measuring frame through an opening measuring tool, adding the chord distance values of the positioning ribs to be divided by equal fractions after the radii meet the conditions, adjusting upper rings and lower rings of the large-division positioning ribs again according to results, fixing the large-division positioning ribs by using electric welding after the adjustment is qualified, and temporarily not adjusting the other rings;
Step 4, mounting small-equally-divided positioning ribs on the basis of an upper ring and a lower ring of the large-equally-divided positioning ribs;
step 5, adjusting the middle ring of the large equally-divided positioning rib while installing the small equally-divided positioning rib, and using electric welding fixed spot welding after the adjustment is completed;
Step 6, small equal-dividing positioning ribs are used as a basis of large equal-dividing positioning ribs, adjustment is carried out on the basis of equal dividing of chord distances of the positioning ribs, and electric welding fixed spot welding is used after each position is installed;
And 7, retesting all the positioning ribs to finish the installation.
In the step 2, the specific method for hanging the large equal-dividing positioning ribs comprises the steps of taking a reference positioning rib as a starting point according to the chord distance theoretical value of the large equal-dividing positioning ribs, clockwise installing 1/3 large equal-dividing positioning ribs, anticlockwise installing 1/3 large equal-dividing positioning ribs, and finally installing the rest part.
In the step 3, the opening measuring tool is used for adjusting the chord distance based on the reference rib diameter, meanwhile, the radius is checked, the verticality of the upper and lower points of the side surface is measured after the replacement of the short inside micrometer is adjusted, the disc measuring tool is used for checking the verticality of the front surface of the positioning rib when the verticality of the side surface is measured, the positioning rib is spot-welded after all indexes are qualified, the size is re-measured, and the next large equal-division positioning rib is adjusted after the requirement is confirmed.
The disc measuring tool comprises a disc base, an inner micrometer, a piano wire and an auxiliary snoop device, wherein the inner micrometer is connected with the disc base, the auxiliary snoop device is connected with the piano wire and the inner micrometer, the piano wire is hung on the front surface or the side surface of the positioning rib, the hanging angle of the piano wire is consistent with the front surface or the dove tail direction of the positioning rib, an opening is formed in the middle of the disc base, the inner wall of the opening is tapped, and the disc base is connected with the inner micrometer through the opening.
The opening measuring tool comprises an opening base, an inside micrometer, a piano wire and an auxiliary snoop device, wherein the inside micrometer is connected with the opening base, the piano wire is connected with the inside micrometer while connected with the auxiliary snoop device, the piano wire is hung on the front face or the side face of the positioning rib, the hanging angle of the piano wire is consistent with the front face or the dove tail direction of the positioning rib, an opening is formed in the connecting face of the opening base, the inner wall of the opening is tapped, and the opening base is connected with the inside micrometer through the opening.
The invention further provides a measuring tool of the stator positioning rib, the measuring tool comprises a measuring base, an inside micrometer, a piano wire and an auxiliary snoop machine, wherein the inside micrometer is connected with the measuring base, the auxiliary snoop machine is connected with the inside micrometer while connected with the piano wire, the piano wire is hung on the front face or the side face of the positioning rib, and the hanging angle of the piano wire is consistent with the front face or the dove tail direction of the positioning rib.
As the preferable technical scheme, the measuring base comprises a disc base, an opening is formed in the middle of the disc base, tapping is conducted on the inner wall of the opening, and the disc base is connected with the inside micrometer through the opening.
As an optimal technical scheme, the diameter of the disc base is 1/2 of the width of the positioning rib.
As the preferable technical scheme, the measuring base comprises an opening base, a connecting surface of the opening base is provided with an opening, the inner wall of the opening is tapped, and the opening base is connected with the inside micrometer through the opening.
As the preferable technical scheme, the contact surface of the opening base and the dove tail of the positioning rib is an arc surface, and the width of the arc surface is 0.5mm larger than that of the dove tail arc surface.
To sum up, this scheme is applicable to most hydraulic generator's location muscle installation and measures, and application scope is extensive to, use this measuring tool can accurately measure the size of location muscle, improve measurement of efficiency simultaneously. The high-efficiency installation method of the positioning ribs can effectively reduce chord distance deviation caused by machining precision and measurement errors in the installation of the large-equal-division positioning ribs, can effectively improve construction efficiency, can start the installation of the small-equal-division positioning ribs after the installation of the upper and lower rings of the large-equal-division positioning ribs is completed, and can effectively control the verticality of the positioning ribs.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall schematic diagram of a measuring tool according to a first embodiment;
FIG. 2 is a schematic view of an opening measuring tool according to the first embodiment;
FIG. 3 is a schematic view of a disc base and an inside micrometer according to the first embodiment;
FIG. 4 is a schematic view of an open base and an inside micrometer according to the first embodiment;
FIG. 5 is a schematic diagram of adjusting verticality of a large-aliquotted spacer bar according to a second embodiment;
FIG. 6 is a schematic diagram of a large bisection spacer chord interval adjustment in accordance with the second embodiment;
FIG. 7 is a schematic diagram of a large-scale aliquoting rib adjustment in accordance with the second embodiment;
FIG. 8 is a schematic diagram of a fine tuning tool according to a second embodiment;
Icon:
1-piano wire, 2-stator frame, 3-spacer bar, 4-disc measuring tool, 5-earphone, 6-hanger, 7-opening measuring tool, 8-inside micrometer, 9-disc base, 10-opening base, 11-reference spacer bar, 12-large equally dividing spacer bar, 13-small equally dividing spacer bar, 14-large equally dividing spacer bar upper ring, 15-large equally dividing spacer bar upper ring, 16-circle measuring frame and 17-fine adjusting tool.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 5, 6, 7 and 8, a method for efficiently installing a positioning rib is provided, which comprises the following steps:
Step 1, detecting the flatness and skew of the positioning ribs on a verification platform before installation, starting installation after the flatness and skew are qualified,
Step 2, hanging a reference positioning rib 11 in the +Y direction on the stator frame 2, and preliminarily fixing the reference positioning rib by adopting a single-head spiral jacking column and a C-shaped clamp;
Step 3, measuring verticality of the piano wire 1 on the radial and circumferential directions of the reference positioning rib 11 through the disc measuring tool 4 and the opening measuring tool 7 by adopting an electrical measurement method, adjusting according to a measurement result, and hanging 17 large equal-division positioning ribs 12 after the reference positioning rib 11 is adjusted to be qualified;
step 4, measuring chord distances of the large-equally-divided positioning ribs 12 through an opening measuring tool 7 and measuring the radius by adopting a circle measuring frame 16, adding the chord distance values of the large-equally-divided positioning ribs to be divided by an equal fraction after the radius meets the condition, adjusting the large-equally-divided positioning rib upper ring 14 and the large-equally-divided positioning rib lower ring 15 again according to the result, fixing the large-equally-divided positioning rib upper ring 14 and the large-equally-divided positioning rib lower ring 15 by using electric welding after the adjustment is qualified, temporarily not adjusting the rest rings and fixing the rest rings with a fine adjusting tool 17 by using a single-head spiral jacking column, and adjusting the verticality and the radius of the large-equally-divided positioning ribs 12 through the circle measuring frame 16 and the circle measuring tool 4 after the adjustment of the large-equally-divided positioning rib upper ring 14 and the large-equally-divided positioning rib lower ring 15 meets the requirement;
step 5, mounting small equally-divided positioning ribs 13 on the basis of the large equally-divided positioning rib upper ring 14 and the large equally-divided positioning rib lower ring 15;
Step 5, when the small equal-dividing positioning ribs 13 are installed, the middle ring of the large equal-dividing positioning ribs 12 is adjusted by combining the opening measuring tool 7, the disc measuring tool 4 and the fine adjusting tool 17, and after adjustment, electric welding fixed spot welding is used, and meanwhile radius, chord distance and skew are retested;
Step 6, small equal-dividing positioning ribs 13 are adjusted on the basis of large equal-dividing positioning ribs 12 and on the basis of equal dividing of chord distances of the positioning ribs, and after installation, electric welding fixed spot welding is used;
And 7, retesting all the positioning ribs to finish the installation.
Specifically, in the step 2, the method of hanging the large equal-dividing positioning ribs includes that 1/3 of the large equal-dividing positioning ribs 12 are installed clockwise according to the chord interval theoretical value of the large equal-dividing positioning ribs 12 by taking the reference positioning ribs 11 as a starting point, then 1/3 of the large equal-dividing positioning ribs 12 are installed anticlockwise, and finally the rest part is installed.
In the step 3, the opening measuring tool 7 is used for adjusting the chord distance based on the reference positioning rib diameter, meanwhile, the radius is checked, the adjustment is completed, the short inside micrometer is replaced, the verticality of the upper point and the lower point of the side surface is measured, the disc measuring tool 4 is used for checking the front verticality of the large equal-division positioning rib 12 when the verticality of the side surface is measured, the positioning rib is spot-welded after each index is qualified, the size is re-measured at the same time, and the next large equal-division positioning rib 12 is adjusted after the conforming requirement is confirmed.
Specifically, in the embodiment, the disc measuring tool comprises a disc base, an inner micrometer, a piano wire and an auxiliary detector, wherein the inner micrometer is connected with the disc base, the auxiliary detector is connected with the piano wire and is connected with the inner micrometer, the piano wire is hung on the front surface or the side surface of the positioning rib, the hanging angle of the piano wire is consistent with the front surface or the dove tail direction of the positioning rib, an opening is formed in the middle of the disc base, the inner wall of the opening is tapped, and the disc base is connected with the inner micrometer through the opening.
In the embodiment, the opening measuring tool comprises an opening base, an inside micrometer, a piano wire and an auxiliary snoop device, wherein the inside micrometer is connected with the opening base, the auxiliary snoop device is connected with the piano wire and the inside micrometer at one side, the piano wire is hung on the front surface or the side surface of the positioning rib, the hanging angle of the piano wire is consistent with the front surface or the dove tail direction of the positioning rib, an opening is formed in the connecting surface of the opening base, the inner wall of the opening is tapped, and the opening base is connected with the inside micrometer through the opening.
By adopting the positioning rib installation method in the embodiment, chord distance deviation caused by machining precision and measurement errors in installation of large equal-division positioning ribs can be effectively reduced, and the perpendicularity of the positioning ribs can be controlled while the construction efficiency is effectively improved.
Example 2
As shown in fig. 1,2, 3 and 4, the present embodiment provides a measuring tool for a stator positioning rib, which is used for measuring the size of the positioning rib 3 on the stator frame 2 of a large-scale hydroelectric generating set. The conventional measuring tools for the positioning ribs 3 are point-to-point measuring, so that the error of the measuring result is large. Based on this, the disc measuring tool 4 and the opening measuring tool 7 of the present embodiment are invented, and during actual measurement, the inside micrometer 8 is connected with the disc base 9 or the opening base 10, and surface contact measurement is realized through base conversion, so that the defect of larger point-to-point error of the point-to-point measuring reference is overcome.
It should be noted that the inside micrometer 8 can be replaced with a base or adjust the length of the micrometer according to different measurement requirements.
The measuring tool comprises a measuring base, an inside micrometer 8 connected with the measuring base, a piano wire 1 and an auxiliary snoop machine, wherein the auxiliary snoop machine is connected with the piano wire 1 and the inside micrometer 8, the piano wire 1 is hung on the front surface or the side surface of the positioning rib 3, and the hanging angle of the piano wire 1 is consistent with the front surface or the dove tail direction of the positioning rib 3. Typically, the auxiliary snoopers are headphones 5.
Two kinds of measuring bases are designed according to different measuring requirements and comprise a disc base 9 and an opening base 10, an inside micrometer 8 is connected with the disc base to form a disc measuring tool 4, and the inside micrometer 8 is connected with the opening base to form an opening measuring tool 7.
Wherein, there is the trompil in the centre of disc base, and to the tapping is carried out to the inner wall of trompil, disc base 9 pass through the trompil with inside micrometer 8 is connected. The diameter of the disc base 9 is 1/2 of the width of the positioning rib.
The connecting surface of the opening base 10 and the inside micrometer 8 is provided with an opening, the inner wall of the opening is tapped, and the opening base 10 is connected with the inside micrometer 8 through the opening. The contact surface of the opening base 10 and the dove tail of the positioning rib 3 is an arc surface. The cambered surface width is greater than the 3 dove tail cambered surface width of the positioning rib by 0.5mm, and the opening angle is slightly greater than the 3 dove tail angle of the positioning rib. Because the cambered surface measurement datum point is easy to slide and influences measurement accuracy, a measurement base designed on one side close to the front face of the positioning rib 3 is a datum control surface, compaction is needed, the other end of the inside micrometer 8 is a measurement end, and the chord distance of the positioning rib 3 is measured by up-and-down movement.
In order to facilitate understanding and implementation by those skilled in the art, a specific implementation of the measuring tool of the present embodiment in actual measurement use is given below, and an example of measuring the positioning rib 3 in the process of installation and maintenance of a 1000WM large-scale unit is described below:
The measuring tool comprises a pair of inside micrometer 8, the diameter of a disc base 9 is 1/2 of the width of a positioning rib, the finish degree of the contact surface processing with the positioning rib 3 is less than or equal to 3.2, the diameter of the disc base 9 is greater than 1.5 times of the diameter of the inside micrometer 8 and less than the width of the front surface of the positioning rib 3, and the tapping of an opening is the same as the size of the inside micrometer 8;
The tapping of the inner wall of the opening base 10 is the same as the dimension of the inside micrometer 8, the machining finish is less than or equal to 6.3, the cambered surface bulges by 2mm, the cambered surface width is greater than the width of the 3 dove tail cambered surface of the positioning rib by 0.5mm, the opening angle is slightly greater than the 3 dove tail angle of the positioning rib, and the diameter of the piano wire 1 is 0.3mm.
In a measurement mode, firstly, an inside micrometer 8 is connected with a disc base 9, a piano wire 1 is hung in the effective range of measurement on the front side or the side of a positioning rib 3 through a hanging bracket 6, an earphone wire is respectively connected with the piano wire 1 and the inside micrometer 8, a connected measurement tool 4 is attached to the positioning rib 3, the distance from the positioning rib 3 to the piano wire 1 is measured through left and right sliding, measurement of each point is completed, then the reading value is compared, the perpendicularity is determined, and the measurement error caused by that a datum point on one side of the positioning rib 3 cannot be well confirmed can be reduced by using the earphone 5 for assistance.
In another measurement mode, firstly, the inside micrometer 8 is connected with the opening base 10, one side of the opening is aligned with the dove tail of the positioning rib 3, the opening base 10 is pressed tightly, the measurement end is aligned with the dove tail of the adjacent positioning rib 3, the measurement minimum distance is moved up and down, and the operation process is repeated until the measurement is completed.
In another measurement mode, the inside micrometer 8 is connected with the opening base 10, the piano wire 1 is hung on the front side or the side face of the positioning rib 3 through the hanging frame 6, the earphone wire 5 is connected with the piano wire 1 and the inside micrometer 8 respectively, one side of the opening is aligned with the dove tail of the positioning rib 3, the opening base 10 is pressed tightly, the measuring end faces the piano wire 1, the minimum distance is measured by moving up and down, each point is measured, the reading value is compared, and the perpendicularity is determined.
It should be noted that the two measuring bases can be used interchangeably on one inside micrometer 8, and that the inside micrometer 8 of various lengths of the same type is used in cooperation according to the chord distance of the different positioning ribs 3.
To sum up, this scheme is applicable to most hydraulic generator location muscle 3 installation and measures, and application scope is extensive to, use this measuring tool 4 and measuring tool 7 can accurately measure the size of location muscle 3, measurement efficiency is higher simultaneously.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The efficient installation method of the positioning rib is characterized by comprising the following steps of:
Step1, hanging a reference positioning rib on a stator frame, and preliminarily fixing the reference positioning rib by adopting a single-head spiral jacking column and a C-shaped clamp;
step 2, measuring verticality of the piano wire on the radial and circumferential directions of the reference positioning rib by adopting an electrical measurement method through a disc measuring tool and an opening measuring tool, adjusting according to a measurement result, and hanging large equal-division positioning ribs after the reference positioning rib is adjusted to be qualified;
Measuring chord distances of the large-equally-divided positioning ribs and measuring radiuses of the circular measuring frame through an opening measuring tool, adding the chord distance values of the large-equally-divided positioning ribs to be divided by equal fractions after the radiuses meet the conditions, adjusting the upper ring and the lower ring of the large-equally-divided positioning ribs again according to the results, fixing the large-equally-divided positioning ribs by using electric welding after the adjustment is qualified, and fixing the rest rings by using a single-head spiral jacking column and a fine adjusting tool once the rest rings are not adjusted and the single-head spiral jacking column and the fine adjusting tool are used;
Step 4, mounting small-equally-divided positioning ribs on the basis of an upper ring and a lower ring of the large-equally-divided positioning ribs;
Step 5, adjusting the middle ring of the large equally-divided positioning rib while installing the small equally-divided positioning rib, and performing electric welding fixed spot welding after adjustment, and simultaneously retesting the radius, chord distance and skew;
step 6, small equal-dividing positioning ribs are used as a basis of large equal-dividing positioning ribs, adjustment is carried out on the basis of equal dividing of chord distances of the positioning ribs, and after installation is completed, electric welding fixed spot welding is used;
And 7, retesting all the positioning ribs to finish the installation.
2. The efficient installation method of the positioning ribs according to claim 1 is characterized in that in the step 2, the specific method for hanging the large equal-division positioning ribs is that 1/3 large equal-division positioning ribs are installed clockwise according to the chord distance theoretical value of the large equal-division positioning ribs by taking a reference positioning rib as a starting point, then 1/3 large equal-division positioning ribs are installed anticlockwise, and finally the rest part is installed.
3. The method for efficiently installing the positioning ribs according to claim 1, wherein in the step 3, an opening measuring tool is used for adjusting the chord distance based on a reference rib diameter, meanwhile, the radius is checked, the verticality of the upper and lower points of the side surface is measured after the replacement of the short-inside micrometer is adjusted, when the verticality of the side surface is measured, a disc measuring tool is used for checking the verticality of the front surface of the positioning ribs, spot welding is performed on the positioning ribs after each index is qualified, the size is re-measured, and the next large-equal-division positioning rib is adjusted after the conforming requirement is confirmed.
4. The efficient installation method of the positioning rib according to claim 1 or 3, wherein the disc measuring tool comprises a disc base, an inner micrometer connected with the disc base, a piano wire and an auxiliary snoop, the auxiliary snoop is connected with the inner micrometer while connected with the piano wire, the piano wire is hung on the front face or the side face of the positioning rib, the hanging angle of the piano wire is consistent with the front face or the dove tail direction of the positioning rib, an opening is formed in the middle of the disc base, the inner wall of the opening is tapped, and the disc base is connected with the inner micrometer through the opening.
5. The efficient installation method of the positioning rib according to claim 4, wherein the opening measuring tool comprises an opening base, an inside micrometer connected with the opening base, a piano wire and an auxiliary detector, the auxiliary detector is connected with the inside micrometer while connected with the piano wire, the piano wire is hung on the front face or the side face of the positioning rib, the hanging angle of the piano wire is consistent with the front face or the dove tail direction of the positioning rib, an opening is formed in the connecting face of the opening base, the inner wall of the opening is tapped, and the opening base is connected with the inside micrometer through the opening.
6. The measuring tool for the stator positioning rib is characterized by comprising a measuring base, an inner micrometer, a piano wire and an auxiliary detector, wherein the inner micrometer is connected with the measuring base, the auxiliary detector is connected with the piano wire and is connected with the inner micrometer, the piano wire is hung on the front face or the side face of the positioning rib, and the hanging angle of the piano wire is consistent with the front face or the dove tail direction of the positioning rib.
7. The tool for measuring stator positioning ribs of claim 6, wherein the measuring base comprises a disc base, an opening is formed in the middle of the disc base, the inner wall of the opening is tapped, and the disc base is connected with the inside micrometer through the opening.
8. The stator alignment rib measurement tool of claim 7 wherein the disk base diameter is 1/2 the width of the alignment rib.
9. The tool for measuring stator positioning ribs of claim 6, wherein the measuring base comprises an open base, wherein the connecting surface of the open base is provided with an opening, and the inner wall of the opening is tapped, and the open base is connected with the inside micrometer through the opening.
10. The measuring tool for the stator positioning ribs according to claim 9, wherein the contact surface of the opening base and the dove tail of the positioning ribs is an arc surface, and the width of the arc surface is 0.5mm larger than the width of the dove tail arc surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111354810.3A CN114094776B (en) | 2021-11-16 | 2021-11-16 | A method for efficiently installing positioning ribs and a measuring tool for stator positioning ribs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111354810.3A CN114094776B (en) | 2021-11-16 | 2021-11-16 | A method for efficiently installing positioning ribs and a measuring tool for stator positioning ribs |
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| Publication Number | Publication Date |
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| CN114094776A CN114094776A (en) | 2022-02-25 |
| CN114094776B true CN114094776B (en) | 2025-02-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202915871U (en) * | 2012-10-22 | 2013-05-01 | 国家电网公司 | Auxiliary tool for checking verticality of generator stator frame |
| CN110253168A (en) * | 2019-07-05 | 2019-09-20 | 哈尔滨电机厂有限责任公司 | A kind of process of steam turbine generator dovetail type positioning bar centering |
| CN216482650U (en) * | 2021-11-16 | 2022-05-10 | 中国葛洲坝集团机电建设有限公司 | Measuring tool for stator positioning rib |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105305740A (en) * | 2015-10-24 | 2016-02-03 | 江南水利水电工程公司 | Stator lamination mounting quality control method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202915871U (en) * | 2012-10-22 | 2013-05-01 | 国家电网公司 | Auxiliary tool for checking verticality of generator stator frame |
| CN110253168A (en) * | 2019-07-05 | 2019-09-20 | 哈尔滨电机厂有限责任公司 | A kind of process of steam turbine generator dovetail type positioning bar centering |
| CN216482650U (en) * | 2021-11-16 | 2022-05-10 | 中国葛洲坝集团机电建设有限公司 | Measuring tool for stator positioning rib |
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