| 摘要 |
<p>Provided is a hydraulic shovel in which the occurrence of microvibrations of an operation lever can be suppressed. This hydraulic shovel comprises: a first pilot pressure control valve (41A) that outputs a pilot pressure in accordance with the operation of an operation lever; an upstream pilot pipe line (53a), one end of which is connected to the first pilot pressure control valve (41A); a proportional solenoid valve (73) that is connected to the other end of the upstream pilot pipe line (53a); a downstream pilot pipe line (53b), one end of which is connected to the proportional solenoid valve (73); and a boom pilot switching valve (37) that actuates and controls a boom and that has a second pilot port (p2) connected to the other end of the downstream pilot pipe line (53b). The capacity of the upstream pilot pipe line (53a) is larger than the capacity of the downstream pilot pipe line (53b).</p> |
