HYDRAULIC DRIVE ASSEMBLY OF CRAWLER CRUSHING MACHINE

摘要

PROBLEM TO BE SOLVED: To improve the life of various auxiliary machines and to improve productivity by controlling the operating speeds of the auxiliary machines in association with a crushing machine with a hydraulic drive assembly of the crawler crushing machine which is arranged with a hydraulic mortar for crushing and hydraulic mortors for the auxiliary machines in respectively separate hydraulic circuits. SOLUTION: This device has a valve group 57 which is connected to a discharge pipeline 56 of the first hydraulic pump of a variable displacement type and has right and left control valves 48 and 49 for traveling and a control valve 47 for crushing, a valve group which is connected to a discharge pipeline 56 of the second hydraulic pump of a variable displacement type and has a control valve for a feeder and a control valve for a conveyor and magnetic separator, a discharge pressure detecting pipeline for detecting the discharge pressure of the first hydraulic pump and a regulator device for controlling the discharge flow rates of the first and second hydraulic pumps in accordance with the result of the detection thereof in association with each other.