Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Provided is a slewing hydraulic work machine capable of performing slewing and boom-raising operation with high efficiency. The hydraulic work machine includes an upper slewing body, a working device including a boom, a hydraulic pump (31), a variable displacement type slewing motor (25), a slewing control device (35, 45) performing a slewing control in accordance with an applied slewing command operation, a boom cylinder (26), a boom control device (37, 46) performing a boom-raising control in accordance with an applied boom-raising command operation, a boom angle detector (68), and a capacity control section (50). The capacity control section (50) calculates a command motor capacity based on a boom angle, generates a capacity command signal corresponding to the command motor capacity and inputs the signal to the slewing motor (25). During the performance of slewing and boom-raising operation, the capacity control section (50) sets the command motor capacity to a value equal to or less than a base capacity when the boom angle is equal to or less than a slewing priority angle and sets the command motor capacity to a value greater than the base capacity when the boom angle is greater than the slewing priority angle.
Provided is a slewing hydraulic work machine capable of performing slewing and boom-raising operation with high efficiency. The hydraulic work machine includes an upper slewing body, a working device including a boom, a hydraulic pump (31), a variable displacement type slewing motor (25), a slewing control device (35, 45) performing a slewing control in accordance with an applied slewing command operation, a boom cylinder (26), a boom control device (37, 46) performing a boom-raising control in accordance with an applied boom-raising command operation, a boom angle detector (68), and a capacity control section (50). The capacity control section (50) calculates a command motor capacity based on a boom angle, generates a capacity command signal corresponding to the command motor capacity and inputs the signal to the slewing motor (25). During the performance of slewing and boom-raising operation, the capacity control section (50) sets the command motor capacity to a value equal to or less than a base capacity when the boom angle is equal to or less than a slewing priority angle and sets the command motor capacity to a value greater than the base capacity when the boom angle is greater than the slewing priority angle.
SLEWING HYDRAULIC WORK MACHINE WITH SLEWING MOTOR CAPACITY CONTROL SECTION
SCHWENKBARE HYDRAULISCHE ARBEITSMASCHINE MIT DREHMOTORKAPAZITÄTSSTEUERUNG
ENGIN DE TRAVAIL HYDRAULIQUE D'ORIENTATION AVEC RÉGULATEUR DE CAPACITÉ DU MOTEUR HYDRAULIQUE
UEDA KOJI (Autor:in)
13.07.2022
Patent
Elektronische Ressource
Englisch