公开(公告)号：US11047455B2

公开(公告)日：2021-06-29

申请号：US16068391

申请日：2016-12-21

申请人： Kleemann GmbH

发明人： Frank Lebender ,  Daniel Andreas ,  Vjekoslav Belosevic ,  Tobias Köhler ,  Karl Füller ,  Otto Blessing

IPC分类号： F16H7/12 ,  F16H7/08 ,  B02C2/00

摘要： A belt tensioning device for a crusher or a screening machine for tensioning at least one circulating drive belt which is deflected about a belt pulley of a drive and has a load strand and an empty strand. The drive can be driven with a crushing assembly, a screening unit, a generator, or the like of the crusher by the drive belt. The vibrational stress acting on the machine chassis can be significantly reduced in that the belt tensioning device has two tensioning rollers each of which is rotatably mounted on a holder of a tensioning part. One tensioning roller is paired with the empty strand and the other is paired with the load strand. Additionally, the two tensioning parts can be adjusted relative to each other between an open position and a tensioning position, in which the tensioning parts are held against each other at least opposite the tensioning direction. In particular the tensioning parts can be blocked against each other, and the complete closed system can be freely moved linearly using adjustment guides according to the load situation.

公开(公告)号：US20190024763A1

公开(公告)日：2019-01-24

申请号：US16068391

申请日：2016-12-21

申请人： Kleemann GmbH

发明人： Frank Lebender ,  Daniel Andreas ,  Vjekoslav Belosevic ,  Tobias Köhler ,  Karl Füller ,  Otto Blessing

IPC分类号： F16H7/12 ,  F16H7/08

摘要： The invention relates to a belt tensioning device for a crusher or a screening machine for tensioning at least one circulating drive belt (20) which is deflected about a belt pulley (12) of a drive (10) and has a load strand (21) and an empty strand (22). The drive (10) can be driven with a crushing assembly, a screening unit, a generator, or the like of the crusher by means of the drive belt (20). The vibrational stress acting on the machine chassis can be significantly reduced in that the belt tensioning device has two tensioning rollers (47), each of which is rotatably mounted on a holder (41, 51) of a tensioning part (40, 50). One tensioning roller (47) is paired with the empty strand (22) and the other is paired with the load strand (21). Additionally, the two tensioning parts (40, 50) can be adjusted relative to each other between an open position and a tensioning position, in which the tensioning parts are held against each other at least opposite the tensioning direction, in particular the tensioning parts can be blocked against each other, and the complete closed system can be freely moved linearly using actuators (44.2) according to the load situation.