CN101908797B - Press mounting method for generator stator core stretching screw - Google Patents
Press mounting method for generator stator core stretching screw Download PDFInfo
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- CN101908797B CN101908797B CN2010102469082A CN201010246908A CN101908797B CN 101908797 B CN101908797 B CN 101908797B CN 2010102469082 A CN2010102469082 A CN 2010102469082A CN 201010246908 A CN201010246908 A CN 201010246908A CN 101908797 B CN101908797 B CN 101908797B
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Abstract
The invention relates to a press mounting method for a generator stator core stretching screw. The invention belongs to the technical field of hydraulic generators. The generator stator core laminations are pressed together by a stretching screw. The method comprises the following steps: (1) test press mounting of stretching screw: measuring the actual length of the stretching screw without pressurizing, carrying out test press on the stretching screw by using a stretching screw measuring sleeve, measuring the elongation of the stretching screw while pressurizing, and recording the pressure reference value; and (2) stretching quantity measurement and press mounting of stretching screw: measuring the initial distance between the lower end surface of the stretching screw and the upper planeof the lower measuring rib by using a stretching screw measuring tool, recording while prepressing and totally pressing, measuring the distance between the lower end surface of the stretching screw and the upper plane of the lower measuring rib when pressurizing to the pressure reference value, and measuring while pressurizing until the requirement is satisfied, thereby realizing press mounting. The invention has the advantages of simple technique, convenient operation, accurate and reliable data, favorable core press mounting effect and the like.
Description
Technical field
The invention belongs to technical field of hydraulic generators, particularly relate to a kind of press mounting method for generator stator core stretching screw.
Background technology
At present; The every stretching screw stress value that in the unit stator iron core pressing process, provides according to design calculates and is press-fiting needs applied pressure value in the process; But press-fit in the process actual, the parameter of different manufacturers hydraulic elongator is different, and this parameter value is the test value under desirable condition; It does not consider the frictional resistance of the outside in practical work process; Therefore press-fit by the force value that calculates, stretching screw does not reach the amount of tension of designing requirement unavoidably, produces the technical problems such as pressure between bad assurance lamination.
Summary of the invention
The present invention provides a kind of press mounting method for generator stator core stretching screw for solving the technical problem that exists in the known technology.
The purpose of this invention is to provide a kind ofly have that technology is simple, 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 press mounting method for generator stator core stretching screw of characteristics such as effective.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of press mounting method for generator stator core stretching screw is characterized in that: the generator stator core punching adopts stretching screw to be fitted in together, and the press-loading process step does,
(1) stretching screw pressure testing dress: under non-pressurized situation, measure the stretching screw physical length; Measure sleeve with stretching screw then stretching screw is carried out precompressed and stagnation pressure pressure testing; With the elongation of pressurization with measurement stretching screw rod; When elongation reached the precompressed value, the force value of record hydraulic elongator was as the pressure reference value of formal precompressed and stagnation pressure;
(2) the stretching screw amount of tension is measured and press-fited: at first measure the initial range that frock is measured plane on stretching screw lower surface and the following measuring muscle with stretching screw, the relative position of measuring muscle and fixing carries out stator iron-core lamination with stretching screw and press-fits about keeping; Each surveys once and carries out data record precompressed and stagnation pressure; Suppress with the force value that records in the step 1 then, when reaching the pressure reference value, measure the distance on plane on stretching screw lower surface and the following measuring muscle with above-mentioned identical method; Front and back are exactly the elongation of stretching screw apart from difference twice; If elongation does not reach precompressed and stagnation pressure value, then on the basis of pressure reference value, boost, with pressurizeing with measuring; Till meeting the requirements, realize unit stator iron core pressing.
The present invention can also adopt following technical scheme:
Described press mounting method for generator stator core stretching screw; Be characterized in: stretching screw is measured frock and is made up of a pillar, last measuring muscle, following measuring muscle and measurement amesdial; Measuring muscle and following measuring muscle are housed on the pillar, and following measuring muscle has the measurement amesdial.
Described press mounting method for generator stator core stretching screw is characterized in: going up measuring muscle has a location blind hole, and following measuring muscle has an opening location hole, and the center in this hole is concentric with blind hole center, last measuring muscle location.
Advantage and good effect that the present invention has are:
Press mounting method for generator stator core stretching screw is owing to adopted brand-new technology scheme of the present invention; The present invention compares with prior art; Through the use of this process, 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 method, 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.
The present invention has that technology is simple, 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 advantages such as effective.
Description of drawings
Fig. 1 is a prepressing structure sketch map 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 sketch map.
Among the figure, 1-pillar, the last measuring muscle of 2-, measuring muscle under the 3-, 4-bolt, 5-micrometer, 6-blind hole, 7-opening location hole, 8-steel plate, 9-seamless steel pipe, 10-seamless steel pipe.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
Consult accompanying drawing 1 to Fig. 5.
Embodiment 1
A kind of press mounting method for generator stator core stretching screw, its generator stator core punching adopt stretching screw to be fitted in together, and the press-loading process step is:
1. the stretching screw pressure testing is adorned: under non-pressurized situation, measure the stretching screw physical length; Measure sleeve with stretching screw then stretching screw is carried out precompressed and stagnation pressure pressure testing; With the elongation of pressurization with measurement stretching screw rod; When elongation reached the precompressed value, the force value of record hydraulic elongator was as the pressure reference value of formal precompressed and stagnation pressure;
2. the stretching screw amount of tension is measured and press-fited: at first measure the initial range that frock is measured plane on stretching screw lower surface and the following measuring muscle with stretching screw, the relative position of measuring muscle and fixing carries out stator iron-core lamination with stretching screw and press-fits about keeping; Each surveys once and carries out data record precompressed and stagnation pressure; Suppress with the force value that records in the step 1 then, when reaching the pressure reference value, measure the distance on plane on stretching screw lower surface and the following measuring muscle with above-mentioned identical method; Front and back are exactly the elongation of stretching screw apart from difference twice; If elongation does not reach precompressed and stagnation pressure value, then on the basis of pressure reference value, boost, with pressurizeing with measuring; Till meeting the requirements, realize unit stator iron core pressing.
The stretching screw that adopts measure frock by a pillar 1, go up measuring muscle 2, measuring muscle 3 and measure amesdial 5 and forms down, measuring muscle and following measuring muscle are housed on the pillar, following measuring muscle has the measurement amesdial.Last measuring muscle has a location blind hole 6, and following measuring muscle has an opening location hole 7, and the center in this hole is concentric with blind hole center, last measuring muscle location.
The practical implementation process of present embodiment:
1. stretching screw is carried out pressure testing dress (seeing accompanying drawing 5 stretching screws measurement sleeve)
Pressure testing.At first highly come to confirm 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 seamless steel pipe and two block plates of diameter are welded to form upper steel plate 8, lower steel plate 11 and interior seamless steel pipe 9 and outer seamless steel pipe 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 precompressed requirement, 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.Above when the precompressed that draws and stagnation pressure force value as the pressure reference value of formal precompressed and stagnation pressure.
2. the mensuration of iron core pressure mounting stretching screw amount of tension
Measuring frock (shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, the accompanying drawing 4) with stretching screw is fixed on the upper end of stretching screw in the blind hole of measuring muscle 2; The lower end is with the assist openings location of downside amount muscle; To go up measuring muscle 2, descend measuring muscle 3 to fix with square head bolt 4 in position according to the stretching screw original length; Keep relative position; On following measuring muscle 3, measure the initial range (precompressed and stagnation pressure) on plane on stretching screw lower surface and the following measuring muscle then with inside dial indicator; The precompressed that draws according to pressure testing then and the force value of stagnation pressure are suppressed with hydraulic elongator as a reference, and force value is boosted to above-mentioned reference pressure value; Again with the measurement bay adjusted in advance and inside micrometer 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 is accomplished with stagnation pressure, do not continue to boost on the basis of the force value of reference as if getting a desired effect then, with boost with measuring, till elongation meets the requirements with said method.
Claims (3)
1. press mounting method for generator stator core stretching screw is characterized in that: the generator stator core punching adopts stretching screw to be fitted in together, and the press-loading process step does,
(1) stretching screw pressure testing dress: under non-pressurized situation, measure the stretching screw physical length; Measure sleeve with stretching screw then stretching screw is carried out precompressed and stagnation pressure pressure testing; With the elongation of pressurization with the measurement stretching screw; When elongation reached the precompressed value, the force value of record hydraulic elongator was as the pressure reference value of formal precompressed and stagnation pressure;
(2) the stretching screw amount of tension is measured and press-fited: at first measure the initial range that frock is measured plane on the following measuring muscle of stretching screw lower surface and stretching screw measurement frock with stretching screw, the relative position of the measuring muscle up and down of maintenance stretching screw measurement frock is also fixing, carries out stator iron-core lamination with stretching screw and press-fits; Each surveys once and carries out data record precompressed and stagnation pressure; Use the force value that records in the step (1) to suppress then, when reaching the pressure reference value, measure the distance on plane on stretching screw lower surface and the following measuring muscle with above-mentioned identical method; Front and back are exactly the elongation of stretching screw apart from difference twice; If elongation does not reach precompressed and stagnation pressure value, then on the basis of pressure reference value, boost, with pressurizeing with measuring; Till meeting the requirements, realize unit stator iron core pressing.
2. according to the described press mounting method for generator stator core stretching screw of claim 1; 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 amesdial; Measuring muscle and following measuring muscle are housed on the pillar, and following measuring muscle has the measurement amesdial.
3. according to the described press mounting method for generator stator core stretching screw of claim 2, it is characterized in that: going up measuring muscle has a location blind hole, and following measuring muscle has an opening location hole, and the center in this hole is concentric with blind hole center, last measuring muscle location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102469082A CN101908797B (en) | 2010-08-06 | 2010-08-06 | Press mounting method for generator stator core stretching screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102469082A CN101908797B (en) | 2010-08-06 | 2010-08-06 | Press mounting method for generator stator core stretching screw |
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| CN101908797A CN101908797A (en) | 2010-12-08 |
| CN101908797B true CN101908797B (en) | 2012-11-28 |
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| CN2010102469082A Active CN101908797B (en) | 2010-08-06 | 2010-08-06 | Press mounting method for generator stator core stretching screw |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107834786B (en) * | 2017-11-21 | 2020-03-27 | 湖南湘电动力有限公司 | Manufacturing method of tension screw type laminated iron core |
| CN111941069B (en) * | 2020-08-07 | 2021-12-24 | 惠州中京电子科技有限公司 | Method for manufacturing 5G communication three-dimensional FPC antenna |
| CN113894533B (en) * | 2021-12-08 | 2022-02-18 | 东方法马通核泵有限责任公司 | Hydraulic stretching quick installation method for main pump main bolt |
| CN114226912B (en) * | 2021-12-28 | 2023-09-08 | 安徽皖南新维电机有限公司 | Device and method for press-fitting and welding spiral stator of permanent magnet motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640455A (en) * | 2008-07-31 | 2010-02-03 | 上海电气集团上海电机厂有限公司 | Method for machining magnetic-pole cores of AC/AC variable-frequency steel-rolling motor rotors |
| CN201766464U (en) * | 2009-12-30 | 2011-03-16 | 南车株洲电力机车有限公司 | Large-sized motor stator lamination prepressing tooling |
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2010
- 2010-08-06 CN CN2010102469082A patent/CN101908797B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640455A (en) * | 2008-07-31 | 2010-02-03 | 上海电气集团上海电机厂有限公司 | Method for machining magnetic-pole cores of AC/AC variable-frequency steel-rolling motor rotors |
| CN201766464U (en) * | 2009-12-30 | 2011-03-16 | 南车株洲电力机车有限公司 | Large-sized motor stator lamination prepressing tooling |
Non-Patent Citations (1)
| Title |
|---|
| 哈尔滨电机厂有限责任公司.株洲航电水轮发电机定子铁心装配新工艺.《电机系统工程》.2008,第24卷(第1期),第55-56页. * |
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