Precautions for slewing ring flange

Once the slewing ring flange rotary table bearing is damaged and other accidents occur, the machine and equipment will stop rotating and the function will be damaged. In a short time, the slewing ring flange shall investigate and deal with the causes and take corresponding measures. The damage of slewing ring flange is much more complicated than that of general mechanical parts. The damage forms of turntable bearings are various and the causes are complex. In addition to the internal factors of bearing design and manufacturing, the damage of slewing ring flange bearing is partly caused by improper use, unreasonable support design, improper installation, poor lubrication, poor sealing and other external factors. Precautions for slewing ring flange: 1) before installation, the datum surface of slewing ring flange and mounting surface of support shall be cleaned to remove oil, burrs, paint and other foreign matters. 2) The slewing ring flange rolled to the quenched soft belt (external mark "s" or hole blockage) shall be placed in the unqualified area or irregular qualified area. 3) After the slewing ring flange is hoisted in place, check the flatness of the mating surface with a feeler gauge. If there is a gap, it should be reprocessed. If it cannot be handled, it can be filled with plastic or local gaskets to prevent the support from deformation after the bolts are tightened. Affect the performance of slewing ring flange. 4) Before tightening the mounting bolts, adjust the side clearance according to the highest point of the radial runout of the gear pitch circle (three teeth painted with green marks). After tightening the bolts, check the side clearance of all gear rings once. 5) Tighten the bolts symmetrically and continuously in the 180 direction, and pass it again at last to ensure that the bolts on the circumference have the same pre tightening force.