| 摘要 |
<p>Mobile crane has a chassis with a super structure, which is pivotally mounted on chassis whereby a device (18) is provided for intake of ballast. The device for intake of ballast has three drawing means which can be vertically raised and lowered. The drawing means is combined with ballast or base plate beneath overall centroid of ballast in order to pull pallet (27) or base plate at super structure and to connect pallet or base plate with super structure.</p> |
