TESTING OF STRENGHT EFFICIENCY OF TRIANGULAR LAY WINDING ROPES

RoundTable – HOW SAFE IS A ROPE? – Krakow 1981

 Introduction

 In Polish coalmines approx.. 50 of all winding ropes are of triangular lay type. They have many advantages particularly useful for mining winders such as:

- 25 -- bigger tensile cross-section and tensile strength than those of a round lay rope of the same diameter·

- smoother and bigger contact surface in the rope pulley groove,

- bigger resistance to transverse pressures and abrasion of wires

Disadvantage of triangular lay rope consists in point contacts wires in the rope, rendering unsatisfactory durability under conditions of intensive operation.

Author: Jan Hankus