Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic excavator drive system
A hydraulic shovel drive system includes a cylinder for driving an operating section, which is an arm or a bucket. Operating oil is supplied from a hydraulic pump to the cylinder through a control valve. A relief line is branched from a rod-side supply/discharge line, and the relief line is closed or opened by a restriction device. At the time of supplying operating oil to the cylinder through a head-side supply/discharge line, the restriction device is controlled by the control device so as to close the relief line if pressure detected by a load detector is lower than a predetermined value, and so as to open the relief line if pressure detected by the load pressure detector is higher than or equal to the predetermined value.
Hydraulic excavator drive system
A hydraulic shovel drive system includes a cylinder for driving an operating section, which is an arm or a bucket. Operating oil is supplied from a hydraulic pump to the cylinder through a control valve. A relief line is branched from a rod-side supply/discharge line, and the relief line is closed or opened by a restriction device. At the time of supplying operating oil to the cylinder through a head-side supply/discharge line, the restriction device is controlled by the control device so as to close the relief line if pressure detected by a load detector is lower than a predetermined value, and so as to open the relief line if pressure detected by the load pressure detector is higher than or equal to the predetermined value.
Hydraulic excavator drive system
AKIHIRO KONDO (Autor:in) / MAKOTO ITO (Autor:in) / KAZUTO FUJIYAMA (Autor:in)
16.11.2016
Patent
Elektronische Ressource
Englisch