| 摘要 |
The present invention relates to a trolley rotating device for a crane. The trolley rotating device for a crane comprises: a rotating unit formed to be rotated on the right and left directions on the upper part of the trolley and has a hook connected to a winch, and a wire rope of the winch and a ring-shaped ring fixated around the lower part; a driving unit fixated to one side of the upper part of the trolley, and supports and rotates the rail such that the rotating unit can be rotated in the right and left directions; and a plurality of supporting units fixated to the other side of the upper part of the trolley supporting the rail such that the rotating unit can be rotated in the right and left directions. The trolley rotating device can rotate a material in the right and left directions which is lifted while the winch of the crane trolley and the hook connected to the wire rope of the winch are being rotated in the right and left directions. Therefore, an accident of an operator, which has been a problem, can be prevented. Also, work efficiency is greatly improved due to the reduction of work time. Moreover, the driving unit to rotate the rotating unit and the supporting units are installed not in the rotating unit but in the trolley; thereby reducing the weight of the rotating unit. |
