| 摘要 |
<p>PURPOSE:To accurately tune plural hydraulic actuators used for a common load by a simple operation. CONSTITUTION:Actual loads applied to hydraulic motors 5, 6 for driving winch drums 1, 2 are detected, and the deviation of the actual loads from a target load determined by distribution of a preset setting load is determined by a controller 16. Next, a target speed of both the motors 5, 6 is determined by correcting a reference speed command by an operating lever 14 so that the deviation becomes zero, and a control signal meeting the target speed is outputted to motor control valves 7, 8 through solenoid proportional valves 21, 23, 23, 24.</p> |
