US 12,404,927 B1
Cycloid speed reducer assembly
Chi-Wen Chung, Taoyuan (TW); Wei-Ying Chu, Taoyuan (TW); and Chin-Hsiang Chen, Taoyuan (TW)
Assigned to Delta Electronics, Inc., Taoyuan (TW)
Filed by Delta Electronics, Inc., Taoyuan (TW)
Filed on Sep. 5, 2024, as Appl. No. 18/825,961.
Claims priority of provisional application 63/631,617, filed on Apr. 9, 2024.
Claims priority of application No. 202411127813.7 (CN), filed on Aug. 16, 2024.
Int. Cl. F16H 1/32 (2006.01); F16H 57/021 (2012.01); F16H 61/00 (2006.01); F16H 63/50 (2006.01)
CPC F16H 61/0006 (2013.01) [F16H 1/32 (2013.01); F16H 57/021 (2013.01); F16H 63/50 (2013.01); F16H 2001/323 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A cycloid speed reducer assembly, comprising:
a cycloid speed reducer comprising:
an input shaft arranged along an axial direction and configured to connect a motor to receive a power input;
a cycloidal gear plate comprising a shaft hole and an outer tooth portion, wherein the shaft hole passes through the cycloidal gear plate along the axial direction, and is configured to be passed through by the input shaft, and the outer tooth portion is disposed on an outer periphery of the cycloidal gear plate;
a roller wheel assembly sleeved on the cycloidal gear plate and comprising a plurality of rollers spatially corresponding to the outer tooth portion of the cycloidal gear plate; and
an output plate arranged adjacent to the motor along the axial direction and connected to the cycloidal gear plate through an eccentric transmission shaft, wherein when the input shaft drives the outer tooth portion of the cycloidal gear plate to engage with the corresponding rollers of the roller wheel assembly, the cycloid gear plate is rotated with the eccentric transmission shaft, so that the output plate is driven by the eccentric transmission shaft to rotate, wherein the output plate comprises a first output plate and a second output plate, the first output plate and the second output plate are respectively located on two opposite outer sides of the roller wheel assembly, and each provides a power output, respectively, wherein the first output plate faces the motor, a first encoder module is disposed between the first output plate and the motor and configured to measure a rotation of the first output plate for feedback control;
and
a second encoder module disposed at a rear end of the motor and configured to measure a rotation speed of the second output plate or a rotation speed of a driving shaft of the motor for feedback control.