Static balance eccentric milling fine counterweight process method for pumped storage rotating wheel
A process method and a pumped-storage technology, applied in the field of machinery, can solve the problems of the unbalanced moment index, the influence of the strength of the runner, and the low calculation accuracy, and achieve the effect of improving the efficiency and accuracy of the counterweight.
Active Publication Date: 2020-11-03
HARBIN ELECTRIC MASCH CO LTD
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AI-Extracted Technical Summary
Problems solved by technology
The invention discloses a static balance eccentric milling fine counterweight process method for a pumped storage rotating wheel. The method is that the de-weighting moment of the rotating wheel at the key position is equal to the unbalanced moment. The pumped storage rotating wheel has the characteristics of small size, high rotating speed and the like, and the counterweight difficulty of the pumped storage rotating wheel lies in that the counterweight of the small-size rotating wheel is difficult to meet the requirements for high precision and low residual unbalanced moment, so that the counterweight difficulty of the pumped storage rotating wheel is how to realize high-precision counterweight balance. The high-precision requirement of the counterweight can be met through eccentric milling counterweight, and the key step is that the eccentric milling contour size of the rotating wheel is accurately calculated according to the unbalanced moment and numerical control eccentric millingmachining is conducted. Compared with a drilling de-weighting method and a deviated turning de-weighting method which are adopted at present, the deviated milling counterweight method can overcome thedefect that drilling de-weighting affects the strength of the rotating wheel; and meanwhile, the defects of low deviated turning de-weighting precision and long machining period can be avoided. The method has the advantages of being easy to popularize, short in period, high in machining efficiency and high in balance weight precision.
Geometric CADStatic/dynamic balance measurement +6
Drill holeControl engineering +2
- Experimental program(1)
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