| 摘要 |
366,465. Welding parts of dynamos. SCOTT, W. H., MOSSAY, P. A. H., and SCOTT, G. J., Gothic Works, Norwich. Sept. 30, 1930, No. 29318. [Classes 83 (ii) and 83 (iv).] A rotor core for a dynamo-electric machine is constructed by consolidating a pack of annular laminµ and securing them together by bars welded to the unit. In the form shown, an end-ring 4 having a number of axially-disposed bars 5 welded to it is placed against the back-plate 8 of a mandrel 7, Fig. 4, and the requisite number of laminµ 1, having slots in their inner periphery, are slid on and compressed by the nut 17. After aligning the winding slots, the outer end-ring 4 is welded to the free ends of the bars 5 and the core is removed from the mandrel. Additional recesses in the laminµ between those which accommodate the bars 5 are provided for bars 21 which are attached by wedges 27 to spider flanges 25, Fig. 9, which have slots 26 of wedge form and are welded to the shaft, and the bars 21 are welded to the end-rings 4 and the flanges 25. Alternatively, the bars 21 may be welded direct to the shaft.
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