CN101949673A - 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
- Publication number
- CN101949673A CN101949673A CN 201010246889 CN201010246889A CN101949673A CN 101949673 A CN101949673 A CN 101949673A CN 201010246889 CN201010246889 CN 201010246889 CN 201010246889 A CN201010246889 A CN 201010246889A CN 101949673 A CN101949673 A CN 101949673A
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- Prior art keywords
- stretching screw
- measuring muscle
- measurement
- elongation
- stator core
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- 238000005259 measurement Methods 0.000 title claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 8
- 210000003205 muscle Anatomy 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000003466 welding Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 238000003475 lamination Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 1
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- Manufacture Of Motors, Generators (AREA)
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 hydraulic generator unit stator core stretching screw elongation and measure frock.
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 designing requirement, do not realize the design effect of expection, cause to press-fit technical matterss such as effect is bad between iron-core lamination.
Summary of the invention
The present invention provides a kind of hydraulic generator unit stator core stretching screw elongation to measure frock 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, iron core pressure mounting precision height, the hydraulic generator unit stator core stretching screw elongation that press-fits characteristics such as effective is measured frock.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is:
A kind of hydraulic generator unit stator core stretching screw elongation is measured frock, be characterized in: stretching screw is measured frock and is made up of a pillar, last measuring muscle, following measuring muscle and measurement clock gauge, measuring muscle and following measuring muscle are housed on the pillar, and following measuring muscle has the measurement clock gauge.
The present invention can also adopt following technical scheme:
Described hydraulic generator unit stator core stretching screw elongation is measured frock, is characterized in: going up measuring muscle has a location blind hole, and following measuring muscle has an opening pilot hole, and the center in this hole is concentric with blind hole center, last measuring muscle location.
Described hydraulic generator unit stator core stretching screw elongation is measured frock, is characterized in: measure frock and be furnished with stretching screw pressure testing measurement sleeve.
Described hydraulic generator unit stator core stretching screw elongation is measured frock, is characterized in: it is that two steel pipe suits, two ends have the fixing formation of steel plate welding that stretching screw is measured sleeve.
Described hydraulic generator unit stator core stretching screw elongation is measured frock, and be characterized in: two steel pipes are the different weldless steel tube of diameter, and two weldless steel tubes and the welding of two ends steel plate constitute.
Advantage and good effect that the present invention has are:
Hydraulic generator unit stator core stretching screw elongation is measured frock owing to adopted brand-new technology scheme of the present invention, the present invention compares with prior art, 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 that compresses.
That the present invention has is simple in structure, easy to operate, economical and practical, time saving and energy saving, data accurately and reliably, iron core pressure mounting precision height press-fits advantages such as effective.
Description of drawings
Fig. 1 is a prepressing structure synoptic diagram of the present invention;
Fig. 2 is a 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 a stretching screw measuring unit barrel structure synoptic diagram.
Among the figure, 1-pillar, the last 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, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
A kind of hydraulic generator unit stator core stretching screw elongation is measured frock, by a pillar 1, go up measuring muscle 2, measuring muscle 3 and measure clock gauge 5 and forms down, measuring muscle and following measuring muscle is housed on the pillar, and following measuring muscle has the measurement clock gauge.Last measuring muscle has a location blind hole 6, and following measuring muscle has an opening pilot hole 7, and the center in this hole is concentric with blind hole center, last 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 constitute.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 for precompressed and stagnation pressure.Quantity is determined according to the number of times of precompressed.The size of its discipline 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, serves as with reference to the precompressed and the stagnation pressure that carry out stator core with the force value that draws then.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 up to the amount of tension that satisfies the 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 last measuring muscle 2, with this down the assist openings on measuring muscle 3 (N in the accompanying drawing 4 to shown in) cooperate reaching the purpose of fixing whole measurement bay, 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 under non-pressurized situation, measuring stretching screw in the sleeve, suppress with hydraulic elongator after putting washer nut then, and measure the elongation of stretching screw at any time, when elongation reaches the value of pre-pressure request, note the force value of hydraulic elongator this moment.Change the value of L in the accompanying drawing 1, the height when sleeve is made stagnation pressure is used the force value when measuring the stator core stagnation pressure with above-mentioned same method then.Force value is as the pressure reference value of formal precompressed and stagnation pressure during 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 measuring muscle 2, locate with the assist openings of downside amount muscle the lower end, to go up measuring muscle 2 according to the stretching screw original length, following measuring muscle 3 is fixed with square head bolt 4 in position, keep relative position, on following measuring muscle 3, measure the raw range (precompressed and stagnation pressure) on plane on stretching screw lower surface and the following measuring muscle then with inside dial indicator, the force value of precompressed that draws according to pressure testing and stagnation pressure as a reference then, 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 following 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 a 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, till elongation meets the requirements with said method.
Claims (5)
1. a hydraulic generator unit stator core stretching screw elongation is measured frock, it is characterized in that: stretching screw is measured frock and is made up of a pillar, last measuring muscle, following measuring muscle and measurement clock gauge, measuring muscle and following measuring muscle are housed on the pillar, and following measuring muscle has the measurement clock gauge.
2. measure frock according to the described hydraulic generator unit of claim 1 stator core stretching screw elongation, it is characterized in that: going up measuring muscle has a location blind hole, and following measuring muscle has an opening pilot hole, and the center in this hole is concentric with blind hole center, last measuring muscle location.
3. measure frock according to claim 1 or 2 described hydraulic generator unit stator core stretching screw elongations, it is characterized in that: measure frock and be furnished with stretching screw pressure testing measurement sleeve.
4. measure frock according to the described hydraulic generator unit of claim 3 stator core stretching screw elongation, it is characterized in that: it is that two steel pipe suits, two ends have the fixing formation of steel plate welding that stretching screw is measured sleeve.
5. measure frock according to the described hydraulic generator unit of claim 3 stator core stretching screw elongation, it is characterized in that: two steel pipes are the different weldless steel tube of diameter, and two weldless steel tubes and the welding of two ends steel plate constitute.
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 true CN101949673A (en) | 2011-01-19 |
| CN101949673B CN101949673B (en) | 2013-03-20 |
Family
ID=43453254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010246889 Expired - Fee Related CN101949673B (en) | 2010-08-06 | 2010-08-06 | Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101949673B (en) |
Cited By (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 |
| CN109059830A (en) * | 2018-08-28 | 2018-12-21 | 徐工集团工程机械有限公司 | A kind of bolt elongate amount detecting device |
Citations (4)
| 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 |
| 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 not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 《引进化工装置设备技术总结 高压设备》 19870930 徐荣皋 其他方法 化学工业出版社 第147~148页 1-2 , 1 * |
Cited By (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 |
| CN109059830A (en) * | 2018-08-28 | 2018-12-21 | 徐工集团工程机械有限公司 | A kind of bolt elongate amount detecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101949673B (en) | 2013-03-20 |
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Granted publication date: 20130320 |