A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Driving device for work machine and work machine equipped therewith
There is provided a driving device for a work machine, having a closed hydraulic circuit system for driving cylinders with hydraulic pumps, the driving device making the speed of operation substantially the same in both directions of piston rod extension and contraction. The driving device includes: a first hydraulic pump that has flow rate control device for controlling the flow rate and direction of hydraulic fluid to be delivered; a single rod hydraulic cylinder that is driven with the hydraulic fluid to drive one of work members of a work device on the work machine; a closed hydraulic circuit that connects the first hydraulic pump with the single rod hydraulic cylinder to form a closed circuit using flow lines through which the hydraulic fluid flows; a branch line that branches from the flow line between the first hydraulic pump and the single rod hydraulic cylinder; a first flow line of which one end is connected to the branch line; a tank to which the other end of the first flow line is connected; and a hydraulic fluid flow rate control device attached to the first flow line to control the flow rate of the hydraulic fluid flowing from the branch line to the tank or from the tank to the branch line.
Driving device for work machine and work machine equipped therewith
There is provided a driving device for a work machine, having a closed hydraulic circuit system for driving cylinders with hydraulic pumps, the driving device making the speed of operation substantially the same in both directions of piston rod extension and contraction. The driving device includes: a first hydraulic pump that has flow rate control device for controlling the flow rate and direction of hydraulic fluid to be delivered; a single rod hydraulic cylinder that is driven with the hydraulic fluid to drive one of work members of a work device on the work machine; a closed hydraulic circuit that connects the first hydraulic pump with the single rod hydraulic cylinder to form a closed circuit using flow lines through which the hydraulic fluid flows; a branch line that branches from the flow line between the first hydraulic pump and the single rod hydraulic cylinder; a first flow line of which one end is connected to the branch line; a tank to which the other end of the first flow line is connected; and a hydraulic fluid flow rate control device attached to the first flow line to control the flow rate of the hydraulic fluid flowing from the branch line to the tank or from the tank to the branch line.
Driving device for work machine and work machine equipped therewith
SHIMIZU JURI (author) / HIRAKU KENJI (author) / SAITOH TEPPEI (author) / MIZUOCHI MARIKO (author) / ISHII AKINORI (author)
2017-12-19
Patent
Electronic Resource
English
CONTROL DEVICE FOR WORK MACHINE AND WORK MACHINE PROVIDED THEREWITH
| European Patent Office | 2024
PIPE JOINING ATTACHMENT FOR WORK MACHINE, AND WORK MACHINE THEREWITH
| European Patent Office | 2024
WORK MACHINE MANIPULATING SYSTEM, AND WORK MACHINE EQUIPPED WITH WORK MACHINE MANIPULATING SYSTEM
| European Patent Office | 2017
CONTROL DEVICE FOR WORK MACHINE AND WORK MACHINE EQUIPPED WITH THE SAME
| European Patent Office | 2024