渐开线少齿差行星齿轮减速器中,采用零齿差输出机构的日益增多。这种机构的特点是通过一对零齿差齿轮副将行星轮的反向低速自转运动传给输出轴。零齿差系指内啮合齿轮副中的内、外齿轮的齿数相同,象齿轮联轴器那样,但所不同的是内、外齿轮间的齿间隙较大。通常在零齿差传动中,把 Involute less tooth difference planetary gear reducer, the use of zero-tooth differential output mechanism is increasing. The characteristic of this mechanism is that the reverse low-speed rotation of the planetary gear is transmitted to the output shaft through a pair of zero-tooth differential gears. Zero-tooth differential refers to the internal gear pair, the same number of teeth on the external gear, like the gear coupling, but the difference is that the internal and external gear larger tooth gap. Usually in the zero-tooth transmission, put