Power transmission device for at least two coaxial axes in a robot

Abstract

Abstract A drive of at least two concentric shafts for moving a robot output device, in particular a robot gripping arm, is proposed, which is characterised in that at least one revolving reduction gearing (13) is provided, the casing (17) and the drive (21) of which are each equipped with a toothed ring (15,19) which cooperates with toothed rings (9,11) provided on the shafts (5,7), in that the toothed rings (15,19) of the planetary gearing (13) have a different number of teeth (z) in order to compensate for their different rotational speeds produced with a fixed gearing drive (23), and in that the axes of the toothed wheels (15,19;9,11) of the planetary gearing (13) and of the shafts (5,7) are equidistant. <IMAGE>

Inventors

• 👤 Stefan Kerpe

Bibliographic Details