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公开(公告)号：US3726426A
公开(公告)日：1973-04-10
申请号：US3726426D
申请日：1971-10-04
Applicant: ASEA AB
Inventor： TINGSKOG L
CPC classification number: B66C13/18 , B66C2700/087
Abstract: A crane includes two gripping members or spreaders mounted adjacent to each other for raising and lowering movement by cables and for horizontal movement between a dock and a ship having compartments for receiving loads. The gripping members are provided with a magnetic or similar arrangement by which they can be coupled together or de-coupled from each other. The upward and downward movement of the gripping members when they are above the ship compartments is controlled by a memory device. During upward movement, when the gripping members reach a certain position when they are outside the compartments (cell construction) the magnetic or similar arrangement is energized and the gripping devices (spreaders) are coupled together. Thereafter the gripping devices are moved away for loading or unloading purposes. This upward movement is stored in the memory device to a certain point. When the loaded gripping members are moved downward, the memory device causes them to be uncoupled at a certain distance above the compartments and thereafter to stop within the compartments at substantially the same level from which they had previously started. The arrangement may also be such that the gripping devices can start at different levels, will move to the same level, be thereby coupled together, and on the downward movement will each stop at substantially the same position from which it started previously. This requires the use of one, preferably two memory devices, one for each gripping member.
Abstract translation: 起重机包括彼此相邻安装的两个夹持构件或吊架，用于通过缆索升高和降低运动，并且在船坞和具有用于接收载荷的隔室的船舶之间的水平运动。 夹持构件设置有磁性或类似的布置，通过它们可将它们耦合在一起或者彼此脱耦合。 抓握构件在船舱上方时的向上和向下运动由存储装置控制。 在向上运动期间，当夹紧构件在隔室（单元结构）外部到达某一位置时，磁性或类似装置被通电，并且夹紧装置（吊具）联接在一起。 此后，夹紧装置移开以用于装载或卸载目的。 该向上移动被存储在存储器件中到某一点。 当装载的夹持构件向下移动时，存储装置使它们在隔室上方一定距离处脱开，然后在隔室内停止在与之前开始的基本相同的水平面上。
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