公开(公告)号：EP3725426A1

公开(公告)日：2020-10-21

申请号：EP18888894.5

申请日：2018-12-12

申请人： Metso Brasil Industria e Comercio Ltda

发明人： KATO, Sadao ,  REZENDE JÚNIOR, Fausto ,  OGAWA, Ricardo, Maerschner

IPC分类号： B07B1/34 ,  B07B1/36 ,  B07B1/44 ,  B07B1/49 ,  B07B1/50 ,  B07B1/28

摘要： The vibrating screen (PV) have a screen deck (11), two sidewalls (12) and a mechanical vibrator (VM) comprising two shafts (20), rotating at the same rotation and in opposite directions, each one of the end portions (20a) of each shaft (20) carrying an eccentric weight (30) and being supported on bearings (21) which are supported in the sidewalls (12) of the vibrating screen (PV). The shafts (20) have their end portions (20a), adjacent to each other, supported on bearings (40) mounted to a same bearing case (50) fixed to beams (13), transversal and having opposite ends fixed to the sidewalls (12) of the vibrating screen (PV). Each end portion (20a) of a shaft (20) carries an eccentric weight (30) with a total mass different from that one of the eccentric weights (30) of the end portions of the other shaft (20), said shafts (20) rotating in determined phases, defining the inclination of the major axis of an elliptical movement imparted to the screen deck (11).