CN101949673B - Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator - Google Patents
Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator Download PDFInfo
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- CN101949673B CN101949673B CN 201010246889 CN201010246889A CN101949673B CN 101949673 B CN101949673 B CN 101949673B CN 201010246889 CN201010246889 CN 201010246889 CN 201010246889 A CN201010246889 A CN 201010246889A CN 101949673 B CN101949673 B CN 101949673B
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- iron core
- measuring muscle
- turbine generator
- hydraulic turbine
- measurement
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Abstract
The invention relates to an elongation measurement tool for a stator iron core tension screw of hydraulic turbine generator, belonging to the technical field of hydraulic turbine generator and characterized in that: the elongation measurement tool for the tension screw is composed of a brace, an upper measurement rib, a lower measurement rib and a measurement dial indicator, wherein the brace is equipped with the upper and lower measurement ribs, and the lower measurement rib is provided with the measurement dial indicator. The elongation measurement tool according to the invention has the advantages of simple structure, convenient operation, low cost, good practicability, saving time and labor, accurate and reliable data, high press-mounting accuracy of iron core, good press-mounting effect, etc.
Description
Technical field
The invention belongs to technical field of hydraulic generators, particularly relate to a kind of elongation measurement tool for stator iron core tension screw of hydraulic turbine generator.
Background technology
At present, the every stretching screw stress value that provides according to design in the unit stator iron core pressing process calculates and is press-fiting needs applied pressure value in the process, but press-fit in the process actual, actual not the reaching of stretching screw designed desired amount of tension get to the force value that calculates with hydraulic elongator after, and then the force value between lamination does not reach the requirement of design, do not realize the design effect of expection, cause to press-fit the technical matterss such as effect is bad between iron-core lamination.
Summary of the invention
The present invention provides a kind of elongation measurement tool for stator iron core tension screw of hydraulic turbine generator for solving the technical matters that exists in the known technology.
The purpose of this invention is to provide and a kind ofly have simple in structure, easy to operate, economical and practical, time saving and energy saving, data accurately and reliably, the iron core pressure mounting precision is high, press-fits the elongation measurement tool for stator iron core tension screw of hydraulic turbine generator of the characteristics such as effective.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is:
A kind of elongation measurement tool for stator iron core tension screw of hydraulic turbine generator, be characterized in: stretching screw is measured frock by a pillar, upper measuring muscle, lower measuring muscle and is measured clock gauge and forms, measuring muscle and lower measuring muscle are housed on the pillar, and lower measuring muscle has the measurement clock gauge.
The present invention can also adopt following technical scheme:
Described elongation measurement tool for stator iron core tension screw of hydraulic turbine generator is characterized in: upper measuring muscle has a location blind hole, and lower measuring muscle has an opening pilot hole, and the center in this hole is concentric with blind hole center, upper measuring muscle location.
Described elongation measurement tool for stator iron core tension screw of hydraulic turbine generator is characterized in: measure frock and be furnished with stretching screw pressure testing measurement sleeve.
Described elongation measurement tool for stator iron core tension screw of hydraulic turbine generator is characterized in: it is that two steel pipe suits, two ends have the fixing formation of Plate Welding that stretching screw is measured sleeve.
Described elongation measurement tool for stator iron core tension screw of hydraulic turbine generator is characterized in: two steel pipes are the different weldless steel tube of diameter, and two weldless steel tubes and two ends Plate Welding consist of.
Advantage and good effect that the present invention has are:
Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator is owing to adopted the brand-new technical scheme of the present invention, the present invention is compared with existing technology, and it has been got rid of reason because of the hydraulic elongator parameter and has caused press-fiting the inaccurate of stretching screw amount of tension in the process.Press-fit with this kind frock, make data clear and definite, have something to base on has guaranteed the requirement of the amount of tension that design proposes, and then has guaranteed pole sheet pressure unshakable in one's determination that iron core reaches the effect of compression.
That the present invention has is simple in structure, easy to operate, economical and practical, time saving and energy saving, data accurately and reliably, the iron core pressure mounting precision is high, press-fits the advantages such as effective.
Description of drawings
Fig. 1 is prepressing structure synoptic diagram of the present invention;
Fig. 2 is stagnation pressure structural representation of the present invention;
Fig. 3 be among Fig. 1 M to removing the measuring muscle structural representation;
Fig. 4 be among Fig. 1 N to removing the measuring muscle structural representation;
Fig. 5 is stretching screw measuring unit barrel structure synoptic diagram.
Among the figure, 1-pillar, the upper measuring muscle of 2-, measuring muscle under the 3-, 4-bolt, 5-milscale, 6-blind hole, 7-opening pilot hole, 8-steel plate, 9-weldless steel tube, 10-weldless steel tube.
Embodiment
For further understanding technology contents of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
Consult accompanying drawing 1 to Fig. 5.
Embodiment 1
A kind of elongation measurement tool for stator iron core tension screw of hydraulic turbine generator is comprised of a pillar 1, upper measuring muscle 2, lower measuring muscle 3 and measurement clock gauge 5, and measuring muscle and lower measuring muscle are housed on the pillar, and lower measuring muscle has the measurement clock gauge.Upper measuring muscle has a location blind hole 6, and lower measuring muscle has an opening pilot hole 7, and the center in this hole is concentric with blind hole center, upper measuring muscle location.
The measurement frock is furnished with stretching screw pressure testing measurement sleeve has two different weldless steel tube and welding of two block plates of diameter to consist of.Component parts has upper steel plate 8, lower steel plate 11 and interior weldless steel tube 9 and outer weldless steel tube 10.
The realization of present embodiment:
1. stretching screw is measured sleeve (seeing accompanying drawing 5)
Length according to stator core in precompressed and the stagnation pressure process is determined height value, is respectively applied to precompressed and stagnation pressure.Quantity is determined according to the number of times of precompressed.The size of its middle term 2 weldless steel tubes is determined according to the size of stretching screw.The pressure testing dress that this frock is used for stretching screw obtains reference data.Thereby the amount of tension that the stretching screw examination is stretched to expection on this frock draws a force value, the precompressed and the stagnation pressure that then carry out stator core take the force value that draws as reference.When in the process of stator core precompressed and stagnation pressure, if still measure the amount of tension that stretching screw does not also reach designing requirement when applied pressure reaches reference value, so just suitable pressurization on the basis of this reference value is until satisfy the amount of tension of stretching screw expection.
2. stretching screw is measured frock (seeing accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4)
Accompanying drawing 1 B-C post 1 length is that precompressed or stagnation pressure are determined its length value according to actual situation about press-fiting.It also is to determine according to the size of stretching screw that one blind hole (M in the accompanying drawing 3 to shown in) size is arranged on the upper measuring muscle 2, cooperate to reach the purpose of fixing whole measurement bay with the assist openings on this lower measuring muscle 3 (N in the accompanying drawing 4 to shown in), thereby guaranteed that measuring process is convenient and swift.Measure the inside dial indicator placement location of stretching value and see accompanying drawing 2.
Present embodiment is used for the measurement press-loading process process of stator iron-core lamination:
1. stretching screw is carried out pressure testing dress (seeing accompanying drawing 5 stretching screws measurement sleeve)
Pressure testing.At first highly come to determine the height value of stretching screw measurement sleeve according to the precompressed of iron core.Stretching screw measurement sleeve includes up and down, and two different weldless steel tube and two block plates of diameter are welded to form upper steel plate 8, lower steel plate 11 and interior weldless steel tube 9 and outer weldless steel tube 10.At first stretching screw is penetrated stretching screw and measure the physical length of in non-pressurized situation, measuring stretching screw in the sleeve, then suppress with hydraulic elongator after putting washer nut, and measure at any time the elongation of stretching screw, when elongation reaches the value of pre-pressure request, record the force value of hydraulic elongator this moment.Change the value of L in the accompanying drawing 1, then the height when sleeve is made stagnation pressure uses the force value when measuring the stator core stagnation pressure with above-mentioned same method.Force value is as the pressure reference value of formal precompressed and stagnation pressure during the precompressed that draws above and stagnation pressure.
2. the mensuration of stretching screw amount of tension unshakable in one's determination and press-fiting
Measure frock (accompanying drawing 1 with stretching screw, accompanying drawing 2, accompanying drawing 3, shown in the accompanying drawing 4) upper end of stretching screw is fixed in the blind hole of upper measuring muscle 2, locate with the assist openings of downside amount muscle the lower end, according to the stretching screw original length with upper measuring muscle 2, lower measuring muscle 3 is fixed with square head bolt 4 in position, keep relative position, then at the raw range (precompressed and stagnation pressure) of measuring plane on stretching screw lower surface and the lower measuring muscle on the lower measuring muscle 3 with inside dial indicator, then the precompressed that draws according to pressure testing and the force value of stagnation pressure are as a reference, suppress with hydraulic elongator, force value is boosted to above-mentioned reference pressure value, again with the measurement bay adjusted in advance and micrometer inside caliper measure behind the drawn of stretching screw lower surface with lower measuring muscle on the distance (precompressed and stagnation pressure) on plane, the difference of twice distance value in front and back is exactly the elongation of stretching screw (precompressed and stagnation pressure).If the amount of tension that reaches precompressed and total pressure request then stator core precompressed and stagnation pressure is finished, do not continue to boost on the basis of the force value of reference if get a desired effect then, with boost with measuring with said method, until elongation meets the requirements.
Claims (3)
1. elongation measurement tool for stator iron core tension screw of hydraulic turbine generator, it is characterized in that: stretching screw is measured frock by a pillar, upper measuring muscle, lower measuring muscle and is measured clock gauge and forms, measuring muscle and lower measuring muscle are housed on the pillar, and lower measuring muscle has the measurement clock gauge; Upper measuring muscle has a location blind hole, and lower measuring muscle has an opening pilot hole, and the center in this hole is concentric with blind hole center, upper measuring muscle location; Measure frock and be furnished with stretching screw pressure testing measurement sleeve.
2. according to elongation measurement tool for stator iron core tension screw of hydraulic turbine generator claimed in claim 1, it is characterized in that: it is that two steel pipe suits, two ends have the fixing formation of Plate Welding that sleeve is measured in the stretching screw pressure testing.
3. according to elongation measurement tool for stator iron core tension screw of hydraulic turbine generator claimed in claim 2, it is characterized in that: two steel pipes are the different weldless steel tube of diameter, two weldless steel tubes and two ends Plate Welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010246889 CN101949673B (en) | 2010-08-06 | 2010-08-06 | Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010246889 CN101949673B (en) | 2010-08-06 | 2010-08-06 | Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101949673A CN101949673A (en) | 2011-01-19 |
| CN101949673B true CN101949673B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010246889 Active CN101949673B (en) | 2010-08-06 | 2010-08-06 | Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764648A (en) * | 2017-11-02 | 2018-03-06 | 新界泵业集团股份有限公司 | Motor self-clinching iron core folds riveting power mechanism for testing and method of testing |
| CN109059830B (en) * | 2018-08-28 | 2020-05-08 | 徐工集团工程机械有限公司 | Bolt elongation detection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316629Y (en) * | 1997-09-24 | 1999-04-28 | 大连造船厂 | Lengthening rolling device |
| CN200962025Y (en) * | 2006-09-13 | 2007-10-17 | 卜春峰 | Adjustable height-testing meter frame |
| CN201181889Y (en) * | 2008-03-14 | 2009-01-14 | 天津市天发重型水电设备制造有限公司 | Stator core strain structure of hydraulic turbogenerator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876214U (en) * | 2010-08-06 | 2011-06-22 | 天津市天发重型水电设备制造有限公司 | Tensioning screw rod elongation measurement tool for stator core of water-turbine generator set |
-
2010
- 2010-08-06 CN CN 201010246889 patent/CN101949673B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316629Y (en) * | 1997-09-24 | 1999-04-28 | 大连造船厂 | Lengthening rolling device |
| CN200962025Y (en) * | 2006-09-13 | 2007-10-17 | 卜春峰 | Adjustable height-testing meter frame |
| CN201181889Y (en) * | 2008-03-14 | 2009-01-14 | 天津市天发重型水电设备制造有限公司 | Stator core strain structure of hydraulic turbogenerator |
Non-Patent Citations (1)
| Title |
|---|
| 徐荣皋.其他方法.《引进化工装置设备技术总结 高压设备》.化学工业出版社,1987,第147~148页. * |
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| CN101949673A (en) | 2011-01-19 |
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