Method and arrangement in arranging an aluminium ferrule to a high strength eye of a steel wire

摘要

Method and arrangement in arranging an aluminium ferrule (2) to an eye (5) of a high strength steel wire rope (6) for fixation purposes, the ferrule (2) is pressed to securely fix said eye (5) and supposed to keep its diameter within a certain standard limit up to a minimum breaking load, dependant on the dimension of said wire rope (6). A ring (1) made from steel having an internally congruent shape but a smaller cross section than that of the ferrule (2) is arranged most close to said eye (5) before said ferrule (2) are together with the steel ring (1) is pressed in a conventional ferrule pressing tool to obtain a eye that is more stable with regard to its dimensions within said standard limit values.

主权项

1. A method of forming an eye on a steel wire rope, comprising:
bending an end portion of the rope such that a free end of the rope is folded onto a body portion of the rope, thereby defining the eye; arranging a steel ring and an aluminum ferrule onto the free end and the adjacent body portion of the rope such that the ring is closer to the eye than the ferrule; pressing the steel ring and the ferrule with a tool to securely fix the free end to the body portion of the rope, whereby stability of dimensions of the eye is increased; and wherein the steel ring defines an opening that is congruent to an opening defined by the ferrule, the steel ring has a smaller cross-sectional area than that of the ferrule, and the outer dimensions of the steel ring are different from outer dimensions of the ferrule before pressing.