分析斗轮取料机中心上线和悬挂式滑线小车上线两种回转上线方式在大角度回转时的问题，讨论拖链装置的结构和工作原理，设计斗轮取料机大角度回转上线的拖链装置。
The problems in the sealing device of wheel axis of single-bucket-wheel stocking machine in Han Steel are analyzed, the principle, design and effect of improved sealing device introduced.
分析斗轮取料机中心上线和悬挂式滑线小车上线两种回转上线方式在大角度回转时的问题，讨论拖链装置的结构和工作原理，设计斗轮取料机大角度回转上线的拖链装置。
The problems in the sealing device of wheel axis of single-bucket-wheel stocking machine in Han Steel are analyzed, the principle, design and effect of improved sealing device introduced.
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