Study the influence of two typical bending roller mechanisms on the force acting on the rollers during bending compensation in the HPL(Heavy Plate Leveller).Using the same bending roller compensation amount and applying the same bending force to the two types of bending roller structures,a finite element model of the rollers under the action of the two types of bending roller mechanisms is established using Ansys software,and the force situation of the rollers during levelling in both bending roller states is analyzed.The back-up roller support of the split beam bending roller mechanism is severely loaded,and the contact stress between the levelling roller and the back-up roller is uneven,resulting in excessive local stress;The back-up roller support with a multi-point bending roller compensation structure has a relatively small offset load,and the contact stress between the levelling roller and the back-up roller is very balanced,without stress concentration.For levellers with large load-bearing capacity,a multi-point bending roller compensation mechanism should be selected to ensure the uniformity of force on the rolles;The split beam bending roller is only suitable for low load high-temperature plate levellers.
LevellerLevelling rollerBack-up rollerSplit beamMulti point bending roller compensation
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