A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC DRIVE UNIT OF HYDRAULIC EXCAVATOR
A hydraulic drive unit of a hydraulic excavator is configured to include a first hydraulic pump PI that discharges a hydraulic oil for activating a boom cylinder 36 and the like, a first electric motor M1 that drives the first hydraulic pump PI, a hydraulic pump for revolution P2 that discharges a hydraulic oil for activating a revolution motor 26, a second electric motor M2 that drives the hydraulic pump for revolution P2, and a motor control device 150 that controls the rotation of the first electric motor M1 and that of the second electric motor M2. The motor control device 150 is configured such that when the revolution of the revolving body is not activated by the revolution motor 26, control to deactivate the second electric motor M2 is performed.
HYDRAULIC DRIVE UNIT OF HYDRAULIC EXCAVATOR
A hydraulic drive unit of a hydraulic excavator is configured to include a first hydraulic pump PI that discharges a hydraulic oil for activating a boom cylinder 36 and the like, a first electric motor M1 that drives the first hydraulic pump PI, a hydraulic pump for revolution P2 that discharges a hydraulic oil for activating a revolution motor 26, a second electric motor M2 that drives the hydraulic pump for revolution P2, and a motor control device 150 that controls the rotation of the first electric motor M1 and that of the second electric motor M2. The motor control device 150 is configured such that when the revolution of the revolving body is not activated by the revolution motor 26, control to deactivate the second electric motor M2 is performed.
HYDRAULIC DRIVE UNIT OF HYDRAULIC EXCAVATOR
HYDRAULISCHE ANTRIEBSEINHEIT FÜR HYDRAULIKBAGGER
UNITÉ D'ENTRAÎNEMENT HYDRAULIQUE POUR PELLE EXCAVATRICE HYDRAULIQUE
KUMEUCHI KENGO (author) / SHIMIZU KOICHI (author) / KOBAYASHI YUTA (author) / OKUTANI SHUMPEI (author) / WATANABE TAKAHIRO (author)
2020-12-30
Patent
Electronic Resource
English