Single-rope single-row parallel rope winding system of crane

The single-rope single-row parallel rope winding system comprises a movable pulley block, a fixed pulley block, a balance pulley block and a steel wire rope, the steel wire rope is wound in from a first pulley at one end of the fixed pulley block, and every time the steel wire rope is wound in the fixed pulley block and the movable pulley block, one pulley is sequentially skipped; and finally, the rope is wound out of the pulley II at the rope inlet end of the fixed pulley block. The steel wire ropes folded back through the balance pulley block are sequentially staggered and parallelly wound on the movable pulley block and the fixed pulley block without mutual interference; the steel wire rope inlet and the steel wire rope outlet are located on the same side of the same end of the pulley block. The device is simple in structural arrangement and higher in safety; two groups are combined in series for use and two groups are crossed in parallel for use, tonnage and height multiplication can be realized, and the