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HOME » FAQ » Daily inspection and requirements for pulley block of bridge crane

Daily inspection and requirements for pulley block of bridge crane

Daily inspection and requirements for pulley block of single girder bridge crane

bridge-crane-breakdown-maintenance

(1) single girder bridge crane dismantling repair pulley group, check the crack

(2) maintenance of the pulley groove

(3) inspection of shaft hole

(4) assembly

(5) pulley shaft shall not have cracks, the journal shall not wear the original diameter of 30%, the taper is not greater than 5%, beyond this value should be replaced;

(6) with a model to check the pulley groove, radial wear should not exceed 30% of the wall thickness, or should be scrapped. Shall not exceed the standard can be repaired, after the overhaul with a model check, the bottom and lateral clearance should not be greater than 0.5mm, trough centerline and pulley centerline deviation should not be greater than 0.2mm, rope groove center of the contour Deviation should not be greater than 1mm;

(7) single-beam bridge crane overhaul, the shaft hole allows no more than 0.25CM2 defects, the depth should not exceed 4mm;

(8) after assembly, should be able to hand flexible rotation, lateral swing shall not exceed D / 1000. D represents the nominal diameter of the pulley.

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