How to deal with the situation when the gantry crane is installed

08-04-2020

Most of the main beams of gantry cranes are transported to the site in sections. Docking and assembly on site. After assembly welding, check the geometric dimensions.

It is found that there is a difference between the mid-span arch and the cantilever lift, and it is necessary to adjust the values of the mid-span arch and the cantilever lift immediately; the gantry hanger is long and cannot enter the site due to road problems. This is a frequent occurrence. First, we need to make a good transportation plan.

Fully consider the emergency countermeasures for this phenomenon. A common method is to prepare a truck crane in advance. Follow the transportation fleet.

Once there is a difficulty in turning the train, use the truck crane to lift the combination of the long parts of the crane and the trailer and match with the tractor to steer; the crane main beam was found during the trial lifting. The actual lifting weight is greater than the value in the installation plan. This phenomenon occurs at the installation site.

The reason is generally: the budget weight has a negative deviation; the lifting load is increased according to the actual situation on site. This phenomenon should be fully considered when formulating the installation plan.

Therefore, the placement factor of the crane is large when the crane is placed; after the installation of the gantry crane, it is found that the angle of the connecting flange between the outrigger and the trolley beam is wrong. Adjustment.

The various supports of the legs or the cable wind ropes are not removed. The welding seam between the flange and the outrigger is cut. Adjust the angle before welding.

gantry crane

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