Technical regulations for inspection of reels and pulleys of hoisting machinery

Category： Industry Dynamics

Release time：2023-04-26

Technical specification for inspection of reels and pulleys of Hoisting machinery

1. The height of the edges on both sides of the drum shall exceed the outermost steel wire rope, and its value shall not be less than 2 times of the diameter of the steel wire rope;

2. The fixing device at the end of the wire rope on the drum should have anti-loosening or self-tightening performance;

3. The pulley groove should be smooth and smooth, and there should be no defects damaging the wire rope;

4. The pulley should have a device to prevent the wire rope from jumping out of the wheel groove;

5, when the drum and pulley in one of the following circumstances should be scrapped:

1) Crack or rim damage;

2) the wall wear of drum reaches 10% of the original wall thickness;

3) Uneven wear of pulley groove up to 3mm;

4) The wall thickness wear of pulley groove reaches 20% of the original wall thickness;

5) The wear amount at the bottom of the pulley groove exceeds 25% of the diameter of the corresponding wire rope;

6) Other defects that can damage the wire rope.

keyword： Technical regulations for inspection of reels and pulleys of hoisting machinery

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