ZAHNRAD FUER DEN ANTRIEB DER ZYLINDER VON OFFSETDRUCKMASCHINEN

摘要

In order to be able to deform the gear rim (2) of a gearwheel (1) for the synchronous drive of cylinders of offset printing machines with a gentle increase in the range of a thousandth to a hundredth mm, the gear rim (2) has at least two additional bores (3) which pass axially through the gear rim (2) to form expansion webs (8) in said gear rim, to which expansion webs there are assigned tensioning devices (4), preferably in the form of flattened conical bolts (5), which are prestressed axially, act radially on the gear rim (2), can be pressed into conical bores (6) of the gear rim (2), rotate with the gearwheel (1) and deform its gear rim (2) to a greater or lesser extent depending on the setting. ……