Bridge crane and control method

Abstract

The invention discloses a bridge crane and a control method and belongs to the field of hoisting equipment. The bridge crane can be used for winding a cable and adjusting the height of the cable according to the height of a grabbing bucket so as to solve the problems that the cable is freely placed on the bridge crane, and the cable can be intertwined or hang down easily. According to the technical scheme, the bridge crane is characterized by comprising a track, a bridge frame and a trolley; the track is installed on a building structure, and the bridge frame and the track are in sliding movement connection; the trolley and the bridge frame are in sliding movement connection; the trolley comprises a cable coiling block and a steel wire rope coiling block; the steel wire rope coiling blockis connected with a driving source; the cable coiling block and the steel wire rope coiling block are in transmission connection through a chain wheel structure; the middle portion of the cable coiling block is provided with a rotating shaft, and the cable coiling block is coaxially and fixedly connected with the rotating shaft; a plurality of annular containing grooves are sequentially formed inthe periphery of the cable coiling block in the axial direction to be used for containing the cable; and the portions, located at the two ends of the cable coiling block, of the rotating shaft are provided with supporting portions. The bridge cane is suitable for heavy article transporting.

Description

technical field [0001] The invention relates to lifting equipment, in particular to a bridge crane and a control method. Background technique [0002] The bridge crane is a kind of bridge type crane whose bridge frame runs on the elevated track. The bridge frame of the bridge crane runs along the length direction of the tracks laid on the elevated tracks on both sides, and the lifting trolley moves along the length direction of the tracks laid on the bridge frame. , forming a rectangular working range, making full use of the space under the bridge to lift materials without being hindered by ground equipment. Therefore, bridge cranes are widely used in various occasions such as indoor and outdoor warehouses, workshops, docks and open storage yards. [0003] The currently used bridge cranes use electric grabs. Since the electric grabs provide power through cables, the height of the grabs needs to be constantly adjusted during the use of the bridge cranes to adapt to the heigh...

AI Technical Summary

Problems solved by technology

[0003] The currently used bridge cranes use electric grabs. Since the electric grabs provide power through cables, the height of the grabs needs to be constantly adjusted during the use of the bridge cranes to adapt to the height of the heavy objects. Therefore, the cables connected to the grabs have A certain length, if the cable is placed freely on the bridge crane, it is easy to wind or hang, which will accelerate the wear of the cable, and there will be a serious safety hazard

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