Overhead Crane reel and drive system inspection

- Nov 28, 2017-

Overhead Crane reel, pulley and drive system inspection requirements

Electric overhead Crane reel and pulley inspection technical regulations

1, the height of the edge of the drum on both sides should exceed the outermost rope, its value should not be less than 2 times the diameter of the rope;

2, the fixed end of the wire rope reel, should be loose or self-tight performance;

3, the pulley groove should be smooth, there should be no damage to the rope defects;

4, the pulley should prevent rope from jumping out of the wheel slot device;

5, when reel and pulley have one of the following conditions should be scrapped:

1) crack or rim damage;

2) Wall wear volume reached 10% of the original wall thickness;

3) uneven wear pulley block up to 3mm;

4) pulley rope groove wall thickness wear reached 20% of the original wall thickness;

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

6) other can damage the rope defects.

Crane mechanical transmission system inspection requirements

1, the clutch should be smooth, power transmission should be effective, the separation should be thoroughly;

2, the transmission components should operate without impact, vibration, heat and oil spills;

3, the gear box gear meshing should be intact, the appropriate amount of oil;

4, work, the gear box should not be abnormal noise, vibration, heat and oil spills;

5, transmission gear should be correct, gear shift should be light;

6, the coupling parts should not be defective; the connection should not be loose, the operation may not have a violent impact;

7, reel arrangement of the wire rope should be neat;

8, gear box anchor bolts, shell bolts should not be loose connection, defect;

9, deceleration gear box operation no abnormal sound, temperature rise should be consistent with the instructions.

Crane inspection 

Periodic inspection cycle with lifting machinery is as follows:

(1) tower cranes, lifts, mobile cranes once a year;

(2) light and small lifting equipment, overhead cranes, gantry cranes, gantry cranes, cable cranes, mast cranes, railway cranes, jib cranes, mechanical parking equipment every 2 years, lifting the molten metal and Hot metal cranes once a year.