PROBLEM TO BE SOLVED: To provide a deck crane system that is able to accurately grasp a state of a hydraulic pump.SOLUTION: A deck crane system comprises: a deck crane disposed on a deck of a ship; a hydraulic drive device configured to drive the deck crane and having a hydraulic circuit including a hydraulic pump, and a main motor that drives the hydraulic pump; and a processing device that controls the deck crane and the hydraulic drive device, calculates efficiency of the hydraulic pump on the basis of a ratio between power of the main motor and power of the hydraulic pump, and outputs an alarm signal in a case where a calculation result is lower than a threshold.SELECTED DRAWING: Figure 4
【課題】油圧ポンプの状態が的確に把握可能なデッキクレーンシステムを提供する。【解決手段】デッキクレーンシステムは、船舶のデッキに配置されるデッキクレーンと、油圧ポンプを含む油圧回路と、油圧ポンプを駆動する主電動機とを有し、デッキクレーンを駆動する油圧駆動装置と、デッキクレーン及び油圧駆動装置を制御すると共に、主電動機の仕事率と油圧ポンプの仕事率との比率に基づいて油圧ポンプの効率を算出し、算出結果が閾値よりも低い場合に報知信号を出力する処理装置とを備える。【選択図】図4
DECK CRANE SYSTEM
デッキクレーンシステム
2018-09-20
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
DECK CRANE SYSTEM, CONTROL DEVICE OF DECK CRANE, AND CONTROL METHOD OF DECK CRANE
European Patent Office | 2022
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