Method for producing large-diameter triangular strand wire rope

Abstract

The invention relates to a method for producing a large-diameter triangular strand wire rope. The method comprises the following steps: rolling a round strand into a triangular strand core through a core rolling machine; producing strands of a steel wire rope through a serial strand rope machine set, wherein the number of steel wire layers out of the triangular strand core is 2 or 3 and the total number, exclusive of the number of strand core steel wires, ranges from 39 to 81; and manufacturing strands into the steel wire rope by using a rope machine. The serial strand rope machine set is a three-serially-connected strand rope machine set or a four-serially-connected strand rope machine set; the three-serially-connected strand rope machine set is used for producing the strand of which the strand core is provided with 2 layers of steel wires outside; and the four-serially-connected strand rope machine set is used for producing the strand of which the strand core is provided with 3 layers of steel wires outside. In the method, the round strand is rolled into the triangular strand core and the size of the strand core and the number of steel wire ropes of the outside layer are reasonably selected, so that a qualified large-diameter triangular strand is produced in a continuous production mode by the serial stand wire rope set; and the process is reasonable and the requirement on quality is met.

Description

technical field [0001] The invention relates to a production method of a large-diameter steel wire rope. Background technique [0002] The production method of triangular strand steel wire rope is to use a special twisting machine to produce strands with a triangular cross-sectional shape, and then extrude through a special rotary forming device on the rope forming machine to twist into a steel wire rope. The diameter of the triangular-strand steel wire rope produced by the existing structure can only be below 58mm, and the triangular-strand steel wire rope more than 60mm has no suitable structure, and the second is that the equipment does not possess production capacity. [0003] Use the existing structure to produce large-diameter triangular-strand steel wire rope, that is, simply enlarge the diameter of the steel wire in the strand, which will bring disadvantages: the diameter of the steel wire in the strand is too thick, it is not easy to operate during production, and m...

AI Technical Summary

Problems solved by technology

[0003] Use the existing structure to produce large-diameter triangular-strand steel wire rope, that is, simply enlarge the diameter of the steel wire in the strand, which will bring disadvantages: the diameter of the steel wire in the strand is too thick, it is not easy to operate during production, and more importantly, it is safe in use. The guarantee ability is reduced, the softness is deteriorated, the fatigue resistance of the wire rope is reduced, and the service life is short

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