DOUBLE-DRUM LINKAGE WINDING TYPE HOISTING SYSTEM
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United States of America Patent
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Issued Date -
Sep 30, 2021
app pub date -
May 15, 2020
filing date -
Mar 30, 2020
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Abstract
A double-drum linkage winding type hoisting system includes a first hoisting drum and a second hoisting drum. The first hoisting drum and the second hoisting drum are engaged and linked through engagement structures on outer circumferences of the first hoisting drum and the second hoisting drum or are linked through a linkage intermediate member. A first hoisting rope is wound around the first hoisting drum. A second hoisting rope is wound around the second hoisting drum. The first hoisting rope and the second hoisting rope are not connected with each other.
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