Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Provided is a slewing-type working machine capable of raising a slewing speed rapidly while preventing a slewing parking brake from dragging at start of a slewing operation, including: a slewing motor (11); a capacity control device (50, 60); a slewing control device (12, 13) operated by a slewing instruction operation to allow hydraulic fluid to be supplied from a hydraulic pump (10) to the slewing motor (11); a slewing parking brake (30); a brake switching device (40); a brake release instruction unit (70) which inputs a brake release instruction to the brake switching device (40) so as to make the brake switching device (40) switch the slewing parking brake (30) to a brake releasing state after allowing hydraulic fluid to be supplied to the slewing motor (11); and a capacity limiting unit (46, 69) that limits the capacity of the slewing motor (11) controlled by the capacity control device (50, 60) to a predetermined brake-release capacity value or less until a brake release point and allows the capacity to increase after the brake release point.
Provided is a slewing-type working machine capable of raising a slewing speed rapidly while preventing a slewing parking brake from dragging at start of a slewing operation, including: a slewing motor (11); a capacity control device (50, 60); a slewing control device (12, 13) operated by a slewing instruction operation to allow hydraulic fluid to be supplied from a hydraulic pump (10) to the slewing motor (11); a slewing parking brake (30); a brake switching device (40); a brake release instruction unit (70) which inputs a brake release instruction to the brake switching device (40) so as to make the brake switching device (40) switch the slewing parking brake (30) to a brake releasing state after allowing hydraulic fluid to be supplied to the slewing motor (11); and a capacity limiting unit (46, 69) that limits the capacity of the slewing motor (11) controlled by the capacity control device (50, 60) to a predetermined brake-release capacity value or less until a brake release point and allows the capacity to increase after the brake release point.
PIVOTING WORK MACHINE
SCHWENKARBEITSMASCHINE
ENGIN DE CHANTIER PIVOTANT
KOZUI MASATOSHI (Autor:in)
13.04.2022
Patent
Elektronische Ressource
Englisch