| 摘要 |
<p>PURPOSE:To improve the workability of a structure wrecking machine, by providing a hydraulic unit and a booster on the side of a body, and providing the driving cylinder of a crushing arm and a pilot check valve on the crushing machine portion of a boom tip. CONSTITUTION:A hydraulic unit 17 and a booster 25 are provided on the body side of a structure wrecking machine, and only the driving cylinder 14 of a crushing arm 12 and a pilot check valve 23 are provided on the crushing machine 10 portion of the tip of booms 3, 5. Thereby, a high pressure pipe 28 and low pressure pipes 21, 22 can be provided in parallel at the portion of booms 3, 5, and operational oil can be sent effectively to the driving cylinder 14 of the crushing machine 10, so that the weight of the crushing machine 10 portion can be reduced and the workability of the structure wrecking machine can be improved.</p> |
