Harmonic reducer is a new type of transmission device that utilizes the principle of harmonic vibration to transmit the rotational motion of the input shaft to the output wave wheel through elastic transmission components (flexible rods, flexible gears). At the same time, by overlaying harmonic waveforms on the output wave wheel that are different from the rotation direction of the input shaft, the torque between the output wave wheel and the output shaft is smaller than that between the input and output shafts, thus achieving the purpose of deceleration.
Specifically, a harmonic reducer consists of a drive shaft, an output shaft, and a harmonic generator. When the drive shaft rotates, the harmonic generator transmits the vibration waveform of the drive shaft in the opposite direction to the flexible gear, causing it to rotate in the opposite direction. This reverse rotation process will capture the teeth of the inner ring, causing the inner ring and flexible gear to rotate in a different way than the input shaft.
This rotation will be transmitted from the inner ring to the output shaft, causing the output shaft to rotate according to the reduction ratio.