METHOD OF REDUCING THE SERVICE LIFE OF THE EMERGENCY RUNWAY BEAMS Russian patent published in 2016 - IPC B66C6/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to the modernization of the emergency welded crane girders in the shops of ferrous and nonferrous metallurgy, fatigue crack damaged. To restore the service life of the beam on the production line is made symmetrical pair of brake beam. According to the pattern of the steel sheet punched rows of longitudinal holes with a regular pitch. Similarly, punch holes in the flanges coaxial pair channels, channel bars in the upper shelves - holes aligned holes in the upper belt of the beam alarm. Online robot manipulator deployed diameter holes on the project and collect the beams together. Mount galvanized, friction stud with screw reefs, with a guarantee of tightening the nuts wrench. Hung from the bridge crane assembly scaffold, mounted on a truck crane robot manipulator dismantle old brake beam and part of the rail fastenings. Align the coaxial openings in the upper shelf sill left brake beam with the holes in the beam waist. Hung on the heels of the friction brake beam left to the upper belt, deploying free holes on the project size, consistently dismantled bolts rail fastenings. Deploy hole manipulator mounted studs and tighten nuts wrench warranty, the holes in the beaded edge of the sheet brake punched holes in the wall beams and temporarily fix the left brake sheet bolted to the wall beams. Deploy holes similarly mounted brake beam on the right, tighten the nut wrench and unite the left and right brake beams into a single beam crane. Restores its design position, fasten it to the columns using flattened mount.

EFFECT: achieved full recovery technical resource emergency runway beams.

1 cl, 1 dwg