Some Reasons Caused the Damage of Steel Wire Rope

Mechanical failure of bucket elevator often occurs on its hoist system, and because the accident of the system wire rope damage or snap also happened, so analyzing the causes of the damage of the wire rope has also become a necessary thing. In order to ensure the safe operation of the wire rope, a better grasp of wire rope damage rules and prevention methods, for the structure of such equipment, engineers have analyzed some main reasons causing the damage of wire rope, it includes the following:

(1), the anti-jump rope device on the pulley device is not set or the gap between anti jump rope device and pulley device is too large, exceeding more than 20% of the rope diameter or the stiffness of anti ropes cannot meet the requirements, leaving the wire rope skipping, and causing damage to the wire rope.
(2), redirecting the groove diameter of the bottom of the pulley, the amount of wear of the wrap angle and the groove wall closes to or exceeds specified requirements, will cause the rope corresponding pressing force and bending stress increases.
(3), the pulley or winch drum material properties cannot reach the requirements, will lead to the wire rope excessive force, and excessive damage to bucket hoist’s wire rope due to compressive stress.
(4), rope device and redirection pulleys due to bad routine maintenance and lubrication can lead to catching phenomenon.
(5), improper position of pulley or winch drum, causing the declination increases, when the rope around into or out of the pulleys and rollers, that is, wire rope centerline and the plane folder of perpendicular to the pulley or drum axis is greater.
(6), the manufacturing defects of pulley or winch drum, such as pores, cracks, coarse degree of surface will cause the damage of bucket elevator.
 

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