TRAVELING-TYPE HYDRAULIC WORKING MACHINE

摘要

A traveling-type hydraulic working machine has input means (42, 43) for issuing a command for a target speed of an engine (1), first detection means (44, 47) for detecting operating condition of a hydraulic actuator (13) etc., second detection means (45, 46) for detecting operating condition of traveling means, and engine speed control means (48, 51-59) for correcting the target speed of the engine (1) and controlling the speed of the engine, the correction and control being performed when the operating condition of the hydraulic actuator (13) etc. detected by the first detection means (44, 47) and the operating condition of the traveling means detected by the second detection means (45, 46) are each in a predetermined state. When traveling and a work actuator are operated in combination, work can be done based on an engine speed desired by an operator. An engine speed is automatically regulated when a work load changes, and as a result, combined capability of traveling and the work actuator is maintained in an excellent level, enabling efficient work.