CN101764473A - Method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing - Google Patents
Method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing Download PDFInfo
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- CN101764473A CN101764473A CN200910071042A CN200910071042A CN101764473A CN 101764473 A CN101764473 A CN 101764473A CN 200910071042 A CN200910071042 A CN 200910071042A CN 200910071042 A CN200910071042 A CN 200910071042A CN 101764473 A CN101764473 A CN 101764473A
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Abstract
The invention relates to a method for laminating the pole core of the generator rotor of a hydroelectric generating set before pre-pressing, belonging to the technical field of generators. The method for laminating the pole core of the generator rotor of the hydroelectric generating set before pre-pressing is that adjustment sheets are filled in the pole core, and is characterized in that: 1) a horizontal placing rack is adopted, and two parallel ribs are arranged at the upper part of the placing rack and are used to support the lower end surfaces of the pole shoes of pole laminations to enable the pole laminations to be tidy and uniform; 2) the pre-laminated pole laminations are tightly pressed, and the deviations of the dimension and the form of all parts from the required dimension and the required form are measured; 3) the adjustment sheets are added among the pole laminations pre-laminated on the placing rack; and 4) the pole core is assembled and pressed after the pole core is penetrated through a pole tie bolt and damper bars. The invention has the advantages that the method is simple, the requirements on the lamination of different types of pole laminations are satisfied, the assembling quality of the pole core is good, the production efficiency is high and the like.
Description
Technical field
The invention belongs to technical field of generators, particularly relate to a kind of method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing.
Background technology
At present, screw in nut with magnetic pole stretching screw one end earlier before the precompressed of electric generating set rotor pole core, penetrate behind the end pole end-plate the stretching screw erect, again the rotor magnetic pole iron core punching is packed into stretching screw from the top down, pack into behind the other end pole end-plate, the tight tightening nut of going up is delivered to down preface and is adorned pressure.The characteristics of this process are pole lamination directly to be penetrated stretching screw adorn pressure, there is following shortcoming in its method: (1) is to big-and-middle-sized Hydropower Unit rotor magnetic pole iron core, along with the increase pole core length of unit capacity even be increased to more than 2 meters, vertical lamination operation is very inconvenient, also has unsafe factor.(2) big-and-middle-sized Hydropower Unit rotor magnetic pole iron core is because the design strength requirement, increased the different pole lamination of different shape, form the different surfaces shape by designing requirement and size on the pole core surface, these different punchings have the fixed position in pole core, vertical lamination is placed various position and quantity and is not often reached each spot size requirement after press-fiting before precompressed, and changes these punching quantity because to have penetrated stretching screw be that quite effort is time-consuming.
Summary of the invention
The present invention provides a kind of method of laminating pole core of generator rotor of hydroelectric generating set before pre-pressing for solving the problem that prior art exists.
The object of the invention provide a kind of method simple, satisfy the requirement of the dissimilar pole lamination stack of pole core, the method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing of characteristics such as pole core assembly quality and production efficiency height.
Method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing of the present invention adopts following technical scheme:
A kind of method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing fills trimmer with pole core, is characterized in:
1) adopt the horizontal direction rack, two parallel muscle are arranged at rack top, are used to support pole lamination pole shoe lower surface, make the pole lamination neat and consistent;
2) pole lamination of folding is in advance compressed, and measure the scale error and the morpheme error of each spot size and requirement;
3) in the middle of the pre-folded pole lamination of rack, add trimmer;
4) penetrating the laggard luggage pressure of magnetic pole stretching screw and amortisseur bar finishes.
Method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing of the present invention can also be taked following technical measures:
Described method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing is characterized in: rack is a concave structure, and the both sides, upper end are as the pole lamination horizontal reference; Inboard two sides is the pole lamination vertical reference, makes stack pole lamination neat and consistent together, is convenient to penetrate stretching screw and amortisseur bar.
Advantage that the present invention has and good effect:
The present invention is owing to adopting above-mentioned brand-new technology scheme, owing to adopt the pole core punching before the preceding pole core punching replacement vertical direction closed assembly precompressed of horizontal direction closed assembly precompressed; Before substituting precompressed, stretching screw penetrates stretching screw to penetrate after the precompressed, more scientifically satisfied the specification requirement of pole core part, it is not enough to have eliminated traditional handicraft rotor magnetic pole iron core tightness, trimmer adds deficiencies such as difficult, that operational danger is big, efficient is low, has improved the quality and the production efficiency of product.
Description of drawings
Fig. 1 is a lamination process schematic representation before magnetic pole of the present invention press-fits;
Fig. 2 is Fig. 1 left side TV structure schematic diagram;
Fig. 3 is a horizontal positioned shelf structure schematic diagram;
Fig. 4 is that the A of Fig. 3 is to structural representation;
Fig. 5 is a traditional vertical lamination schematic diagram;
Fig. 6 is that the A of Fig. 5 is to structural representation.
Among the figure, the 1-pole lamination, the 2-pole end-plate, the 3-clearance gauge, 4-detects hole, 5-rack, 6-pole lamination, 7-stretching screw, 8-cushion block, 9-pole end-plate.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, enumerate following example now, and be described with reference to the accompanying drawings as follows:
See also accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6.
A kind of method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing fills trimmer with pole core, and its process is:
1) adopt horizontal direction rack 5, there is the hole 4 of detection at rack 5 middle parts, and two parallel muscle are arranged at top, are used to support pole lamination pole shoe lower surface, make the pole lamination neat and consistent;
2) 2 pairs of pole laminations of folding in advance 1 of pole end-plate compress, and measure the scale error and the morpheme error of each spot size and requirement by clearance gauge 3;
3) on rack, add trimmer (trimmer is with adjacent sheet spot welding) in the middle of the pre-folded pole lamination;
4) penetrating the laggard luggage pressure of magnetic pole stretching screw and amortisseur bar finishes.
The rack of present embodiment is a concave structure, and the both sides, upper end are as the pole lamination horizontal reference; Inboard two sides is the pole lamination vertical reference, makes stack pole lamination neat and consistent together, is convenient to penetrate stretching screw and amortisseur bar.
The concrete pre-lamination processing step of present embodiment is as follows:
1) earlier with the rack horizontal positioned, by design drawing requirement budget difformity pole lamination quantity, and the position comes on the rack on request, puts into pole end-plate at the pole lamination two ends.
2) pole lamination of folding is compressed with required pressure on rack.
3) measure size under impaction state, and determine that according to error each position increases the quantity of difformity pole lamination, local trimmer.
4) change dress pressure operation over to penetrating magnetic pole stretching screw and amortisseur bar in the pole core hole of adjusting.
Embodiment compares:
Traditional vertical lamination schematic diagram 5 and Fig. 6.Vertical lamination is to carry out pole lamination 6 laminations on pole end-plate 9, cushion block 8, stretching screw 7.Because big-and-middle-sized Hydropower Unit rotor magnetic pole iron core size is long, generally surpass human body height, and magnetic pole section is long-pending less relatively, overturn moment strengthens, and vertical lamination operating efficiency is low and dangerous.
Claims (2)
1. a method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing fills trimmer with pole core, it is characterized in that:
1) adopt the horizontal direction rack, two parallel muscle are arranged at rack top, are used to support pole lamination pole shoe lower surface, make the pole lamination neat and consistent;
2) pole lamination of folding is in advance compressed, and measure the scale error and the type bit error of each spot size and requirement;
3) on rack, add trimmer in the middle of the pre-folded pole lamination;
4) penetrating the laggard luggage pressure of magnetic pole stretching screw and amortisseur bar finishes.
2. method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing according to claim 1 is characterized in that: rack is a concave structure, and the both sides, upper end are as the pole lamination horizontal reference; Inboard two sides is the pole lamination vertical reference, makes stack pole lamination neat and consistent together, is convenient to penetrate stretching screw and amortisseur bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910071042A CN101764473A (en) | 2009-10-29 | 2009-10-29 | Method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910071042A CN101764473A (en) | 2009-10-29 | 2009-10-29 | Method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101764473A true CN101764473A (en) | 2010-06-30 |
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| CN200910071042A Pending CN101764473A (en) | 2009-10-29 | 2009-10-29 | Method for laminating pole core of generator rotor of hydroelectric generating set before pre-pressing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510178A (en) * | 2011-10-31 | 2012-06-20 | 上海电气电站设备有限公司 | Armature iron core compensating method of large-sized brushless exciter |
| CN102638137A (en) * | 2011-02-10 | 2012-08-15 | 马涅蒂-马瑞利公司 | Method for building magnetic core including laminations bound into packs for electrical machine |
| CN109274230A (en) * | 2018-11-28 | 2019-01-25 | 哈尔滨电气动力装备有限公司 | Large-scale shield electric machine punching separates bracket |
-
2009
- 2009-10-29 CN CN200910071042A patent/CN101764473A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638137A (en) * | 2011-02-10 | 2012-08-15 | 马涅蒂-马瑞利公司 | Method for building magnetic core including laminations bound into packs for electrical machine |
| CN102638137B (en) * | 2011-02-10 | 2015-12-02 | 马涅蒂-马瑞利公司 | Build be used for motor by the method being constrained to the magnetic core that stacking lamination forms |
| CN102510178A (en) * | 2011-10-31 | 2012-06-20 | 上海电气电站设备有限公司 | Armature iron core compensating method of large-sized brushless exciter |
| CN102510178B (en) * | 2011-10-31 | 2013-09-04 | 上海电气电站设备有限公司 | Armature iron core compensating method of large-sized brushless exciter |
| CN109274230A (en) * | 2018-11-28 | 2019-01-25 | 哈尔滨电气动力装备有限公司 | Large-scale shield electric machine punching separates bracket |
| CN109274230B (en) * | 2018-11-28 | 2024-02-20 | 哈尔滨电气动力装备有限公司 | Large-scale canned motor punching separation support |
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Open date: 20100630 |