A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DRAG AND LIFT CONTROL OF A SHOVEL
A shovel according to an embodiment of the present invention is a shovel that performs excavation in accordance with an arm excavation operation that includes an arm closing operation, and includes an excavation operation detection part (300) configured to detect that the arm excavation operation has been performed, a position detection part (301) configured to detect a position of the shovel; a maximum allowable pressure calculation part (302) configured to calculate a pressure of a bottom-side oil chamber (8B) of an arm cylinder (8) corresponding to an excavation reaction force at a time when the shovel is dragged by the excavation reaction force as a second maximum allowable pressure (PAMAX), based on the position of the shovel, and a boom cylinder pressure control part (303) configured to control the pressure of the bottom-side oil chamber (8B) of the arm cylinder (8) not to exceed the second maximum allowable pressure (PAMAX) when the arm excavation operation is performed.
DRAG AND LIFT CONTROL OF A SHOVEL
A shovel according to an embodiment of the present invention is a shovel that performs excavation in accordance with an arm excavation operation that includes an arm closing operation, and includes an excavation operation detection part (300) configured to detect that the arm excavation operation has been performed, a position detection part (301) configured to detect a position of the shovel; a maximum allowable pressure calculation part (302) configured to calculate a pressure of a bottom-side oil chamber (8B) of an arm cylinder (8) corresponding to an excavation reaction force at a time when the shovel is dragged by the excavation reaction force as a second maximum allowable pressure (PAMAX), based on the position of the shovel, and a boom cylinder pressure control part (303) configured to control the pressure of the bottom-side oil chamber (8B) of the arm cylinder (8) not to exceed the second maximum allowable pressure (PAMAX) when the arm excavation operation is performed.
DRAG AND LIFT CONTROL OF A SHOVEL
SCHLUPF- UND HUBSTEUERUNG EINER SCHAUFEL
CONTROLE DE DERAPAGE ET DE LEVAGE D'UNE PELLE
TSUKAMOTO HIROYUKI (author)
2019-10-30
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING