Title:
デッキクレーンシステム
Document Type and Number:
Japanese Patent JP6890023
Kind Code:
B2
Abstract:
Provided is a deck crane system capable of accurately grasping the state of a hydraulic pump. A deck crane system includes a deck crane disposed on a deck of a ship; a hydraulic driving device including a hydraulic circuit including a hydraulic pump, and a main electric motor for driving the hydraulic pump, the hydraulic driving device driving the deck crane; and a processing device that calculates the efficiency of the hydraulic pump on the basis of the ratio between the power of the main electric motor and the power of the hydraulic pump while controlling the deck crane and the hydraulic driving device and outputs a notification signal when the calculation result is lower than the threshold value.
Inventors:
Ogushi Taito
Yoshihiro Shiroyama
Kazuya Nishida
Yoshihiro Shiroyama
Kazuya Nishida
Application Number:
JP2017044045A
Publication Date:
June 18, 2021
Filing Date:
March 08, 2017
Export Citation:
Assignee:
Mitsubishi Heavy Industries Machinery Systems Co., Ltd.
International Classes:
B66C13/20; B66C23/52
Domestic Patent References:
| JP2012025521A | ||||
| JP2015131701A | ||||
| JP2007186289A |
Attorney, Agent or Firm:
Sakai International Patent Office