Safety inspection of general parts for cranes

- Jun 08, 2017-

1 Hook.

Check the mark of the hook and the anti-stripping device to meet the requirements, the hook has no cracks, peeling and other defects, the hook section wear, the increase in the opening degree, torsion deformation, whether it is exceeded; the neck and the surface of the hook have no fatigue deformation, crack and related pins and sleeves wear.

2) Wire rope.

Check the wire rope specifications, model and pulley reel matching to meet the design requirements. Steel wire Rope fixed end of the plate, rope card, block, such as steel rope fixed device to meet the requirements. Steel wire rope wear, broken wire, kink, flattening, bending, broken stocks, corrosion and so on is not exceeded.

3) braking device.

Brake settings, brake type conforms to the design requirements, the brake rod, spring has no fatigue deformation, cracks and other defects, pin shaft, mandrel, brake wheel, brake friction plate is not worn out, hydraulic brake leakage oil, braking clearance adjustment, braking capacity can meet the requirements.

4 reel.

The drum body, the barrel rim has the fatigue crack, the breakage and so on condition, the rope trough and the cylinder wall attrition is not exceeded, the reel rim height and the steel wire rope winding layer number can match, the Guide rope device, the rope-discharging device work condition conforms to the request;

5 pulley.

Whether the pulley is equipped with a rope-proof groove device, pulley rope groove, flange whether there is crack, broken edge, wear exceeded the condition, pulley rotation is flexible.

6) Reducer.

There are no violent metal friction sound, vibration, shell radiation and other abnormal sound during the deceleration operation, whether the shaft end is sealed, the fixed bolts are loose or defective, etc. reducer lubricating oil selection, oil level, vertical reducer lubricating pump operation, open gear transmission lubrication and so on meet the requirements.

7) wheels.

Wheel tread, axle whether there is fatigue crack phenomenon, wheel tread axle wear is not exceeded. Whether the phenomenon of gnawing rail occurs in the operation. The cause of the gnawing track is what.

8) coupling.

The coupling part has the defect, the connection is loose, the operation Impact phenomenon. Coupling, PIN shaft, shaft pin hole, cushion rubber ring wear is not exceeded. The coupling is concentric with the two parts connected.