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アンローダ自動運転制御システムの開発

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川崎製鉄技報

KAWASAKI STEEL GIHO Vol. 22(1990) No.1

アンローダ自動運転制御システムの開発

Automatic Control System for Unloader Operation

兼 田 経 博(Tsunehiro Kaneda) 細 見 和 夫 (Kazuo Hosomi) 深 川 卓 美 (Takumi Fukagawa) 石川 裕昭(Hiroaki Ishikawa) 林岡 卓己(Takumi Hayashioka)

要旨 : 水島製鉄所原料岸壁のロープトロリ式アンローダに自動運転制御システムを開発し,実用 化に成功した。本システムは,自動運転制御上の課題であるグラブバケットの振れ止め制 御・軟着地制御・原料つかみ量制御の三大要素技術から構成され,機能的にも目標の精度・ 能率を達成している。また,安全・運用面と制御機能との調和を図ることにより,オペレ ータにとって従来運転と違和感の少ないシステムを構築した。現在,所期の目的とした自 動運転率を維持し,オペレータ運転負荷の軽減,運転技能の個人差解消,過荷重抑制等の 荷役作業改善に寄与している。 Synopsis :

A newly developed automatic control system has proved successful in the operation of the rope-trolley unloader at the Mizushima raw materials wharf. The system has solved the three basic and inherent technical problems of grab-bucket control in respect of sway-prevention, soft-landing, and accurate grabbing, and has attained high levels of functional accuracy and efficiency as originally aimed. Designed with ample attention paid to the safety and ease of operation, the system provides operators with a minimum degree of difference from the conventional operation. Automatic operation rate originally planned has been smoothly maintained to date, and the system is contributing to substantial improvement in raw materials unloading operations at the wharf by reducing operators’ work load, removing the attention paid to individual skill differences, and preventing excess bucket loadings.

(c)JFE Steel Corporation, 2003

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