ESTIMATION APPARATUS AND CRANE
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United States of America Patent
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Issued Date -
Dec 21, 2023
app pub date -
Mar 29, 2022
filing date -
Apr 20, 2021
priority date (Note) -
Published
status (Latency Note)
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Abstract
Provided is an estimation apparatus for estimating a number of wound layers of a wire rope in a crane including a boom, a winch drum, and the wire rope wound around the winch drum, the estimation apparatus being mounted on the crane, the estimation apparatus including: a calculation unit that calculates a delivery length of the wire rope; a detection unit that detects a rotational amount of the winch drum; and a control unit that estimates the number of wound layers, based on a difference in the delivery length of the wire rope and a difference in the rotational amount of the winch drum between a first orientation. and a second orientation of the boom.
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