Coping approaches: check for deviation at both ends of the connecting shaft, adjust or replace the shaft.2.2 The problem of exciter its ownShould better not use two exciters from two different suppliers, avoid the deviation problems of exciters its own.2.3 Nonuniform feed, unbalance loadingUnbalance loading make the angle difference of two sides oversized, thus the cross beam wear and breaks prematurely.

The high drop of the gypsum production line causes a heavy impact that damages the cross beam directly. meanwhile, the excessive impact force also brings about vibration which may have an influence on the performance.

coping approaches: add a dash plate in the middle of the material groove, under the condition of non-blocking, minimize the drop height along with impact force.2.5 Over loadingDue to the inappropriate equipment configuration, some screen machines are operated for a long time under the overload condition, the screening and dissociation effects are detracted, in addition, the springs and cross beam is broken easily.