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本文提出了永磁起重器自动启吊结构的设计依据，并阐述了工作原理。通过启吊试验，证实了该结构的合理性以及实用价值。
In this paper, the design basis of automatic lifting structure of permanent magnet lifter is put forward and the working principle is expounded. Through the lifting test, the structure of the rationality and practical value.