US 12,228,204 B2
Flexible mechanism-based anti-backlash device for planetary gear train, gearbox and robot joint
Guilin Yang, Ningbo (CN); Qinghao Du, Ningbo (CN); Miao Yang, Ningbo (CN); Hongtao Yu, Ningbo (CN); Chi Zhang, Ningbo (CN); and Chin Yin Chen, Ningbo (CN)
Assigned to NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCES, Ningbo (CN)
Appl. No. 17/777,626
Filed by NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCES, Ningbo (CN)
PCT Filed Sep. 17, 2021, PCT No. PCT/CN2021/118905
§ 371(c)(1), (2) Date Dec. 27, 2023,
PCT Pub. No. WO2022/148058, PCT Pub. Date Jul. 14, 2022.
Claims priority of application No. 202110027717.5 (CN), filed on Jan. 8, 2021.
Prior Publication US 2024/0229925 A1, Jul. 11, 2024
Int. Cl. F16H 57/12 (2006.01); F16H 57/08 (2006.01)
CPC F16H 57/12 (2013.01) [F16H 57/082 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A flexible mechanism-based anti-backlash device for a planetary gear train, comprising an integrated flexible planet carrier, an adjusting screw and a spring, wherein the adjusting screw is in threaded connection to the integrated flexible planet carrier, the integrated flexible planet carrier is provided with a moving platform, a spring hole is provided on the moving platform, and the spring is sleeved outside the screw and is installed in the spring hole; when a threaded connection depth of the adjusting screw and the integrated flexible planet carrier reaches or exceeds a set depth, the adjusting screw is configured to extrude the spring to allow the moving platform to generate elastic movement along a radial direction of the integrated flexible planet carrier, wherein a planet gear shaft bearing hole in the integrated flexible planet carrier is allowed to generate circumferential elastic rotation around a center of the integrated flexible planet carrier.