The replacement and maintenance of the Overhead Crane Girder hoist wire rope

The replacement and maintenance of the Overhead Crane Girder hoist wire rope

 In the case of the following problems, the steel rope has just been replaced.

1. Wire rope replacement steps are as follows: The main hook of Overhead Crane Girder down to the ground, Removed from the top section of the main arm or main hook for of Overhead Crane Girder a rope; Pull the wire rope from the reel; Removed from the drum for wire rope; Make the new wire rope through the top section at the top of the main arm a pulley. Wire rope end fixed on the main drum; Rolled steel wire rope, According to the corresponding ratio make wire rope pulley wear around the top section of the main arm and hook pulley. The noose and rope clamp on the rope; Depending on the ratio decided to put a noose on the top section of the main arm or hook; Raise the boom at a high elevation angle and extend it out, then lower the hook until the wire rope on the reel is placed in the last three laps; Lifting a Overhead Crane Girder single wire rope maximum allowable load 30% of the weight, The rope around the drum; From the main hook on landed weight.

2. When the wire rope of Overhead Crane Girder is tied;

3. When the wire rope break a share of 10% except (rope);When the diameter reduced more than 7% of nominal diameter;

4. When significant deformation such as rope strands of subsidence, steel wire or steel wire corrosion.

5. The main arm, arm contraction, the adjustment of the wire rope Overhead Crane Girder, 75 tons of equipment, for example, if the main arm retracted after operation. 4, 5, knuckle arm can't completely retracted, cannot withdraw entirely, is the main arm shrinkage caused by wire rope didn't adjust good, should adjust wire rope according to the following method. For the adjustment of the arm rope, open the cover plate of the head of the five arms，Back to pull wire rope head nut, loosen the lock nut, screw the adjusting nut. Until has just taut wire rope is determined, then lock nut and tighten, mount hood shell. Four arm to arm the adjustment of the rope, find the main arm both sides of the symmetrical side pullback drawstring, loosen the lock nut and tighten the adjusting nut again, until sure out of wire rope has just tighten, tighten the lock nut.