US 12,191,749 B2
Galvanometer drive with zero-backlash mounting
Norbert Kirr, Puchheim (DE); Tobias Edlboeck, Puchheim (DE); Thomas Lares, Puchheim (DE); and Hans-Joachim Muenzer, Puchheim (DE)
Assigned to SCANLAB GmbH, Puchheim (DE)
Appl. No. 17/798,971
Filed by SCANLAB GmbH, Puchheim (DE)
PCT Filed Feb. 1, 2021, PCT No. PCT/EP2021/052332
§ 371(c)(1), (2) Date Aug. 11, 2022,
PCT Pub. No. WO2021/165026, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 102020201957.6 (DE), filed on Feb. 17, 2020.
Prior Publication US 2023/0340998 A1, Oct. 26, 2023
Int. Cl. H02K 7/08 (2006.01); F16C 19/54 (2006.01); F16C 25/08 (2006.01); F16C 35/077 (2006.01)
CPC H02K 7/08 (2013.01) [H02K 7/083 (2013.01); H02K 7/088 (2013.01); F16C 19/54 (2013.01); F16C 25/083 (2013.01); F16C 35/077 (2013.01); F16C 2229/00 (2013.01); F16C 2380/26 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A galvanometer drive comprising:
a rotor which is rotatable about an axis of rotation and which comprises a magnet, and
a stator unit which surrounds the rotor and which comprises a coil,
the rotor being supported by two bearings, at least one of which is a floating bearing, in such a way that it can perform a rotational movement about the axis of rotation relative to the stator unit,
characterized by a radial movement limiting device, which is adapted to limit the radial movement of the floating bearing with respect to the stator unit, wherein a ratio of radial stiffness to axial stiffness at the floating bearing is greater than 10.