| 摘要 |
<p>Provided is a hydraulic circuit that makes it possible to switch the circuit state between a state in which a regenerative action operates and a state in which the regenerative action stops. The hydraulic circuit comprises: hydraulic pumps (10, 11); a plurality of hydraulic actuators (7, 8); a plurality of control valves (12-14) that are provided for each of the hydraulic actuators; a regeneration line (26) for sending returning oil to a regeneration destination, said returning oil being returned to a tank from a hydraulic actuator (7) that is specified from among the actuators; a regeneration valve (30); a meter-out valve (32); and flow path switching devices (28, 29, 33) that switch the flow path of the returning oil between a first flow path that sends the returning oil to the regeneration line and causes the regenerative action and a second flow path that sends the returning oil to a control valve for the specified hydraulic actuator in order to stop the regenerative action.</p> |
