| 摘要 |
An unloader (1) for unloading bulk material from the hold (2) of a ship (4) comprises a tower rotatable about a vertical axis, a horizontal conveyor (8) which is rotatably mounted in said tower about an axis perpendicular to its longitudinal direction and the axis of rotation of the tower, and a vertical conveyor (10) hingedly suspended at the end (9) of the horizontal conveyor (8) facing away from the tower, said vertical conveyor being swingable relative to said horizontal conveyor (8) at least in a plane common to said horizontal conveyor (8) and said vertical conveyor (10). A method and an apparatus for controlling the unloader requires measuring of the relative inclination between the bottom plane (19) of the hold (2) and a reference plane for the unloader (1). Furthermore, the movement of the feeding end (14) of the vertical conveyor (10) is controlled in such a manner, while utilising on the one hand the result of the inclination measurement and, on the other hand, the information about the pendulum movement ( phi ) of the vertical conveyor (10) in said common plane and the rotation of the tower, that each horizontal movement of the feeding end (14) caused by manual control of the movement of the unloader (1) results in such a compensating vertical movement of the feeding end (14) that the latter is caused to move in a plane parallel to the bottom plane (19) of the hold (2). |
