Robot dedicated reducer

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RV-E robot dedicated reducer

RV drive is a new type of transmission, which is developed on the basis of the traditional pin-type planetary transmission, not only to overcome the shortcomings of the general pin-driven, but also because of its small size, light weight, a large transmission ratio, life Long, accurate and stable, high efficiency, smooth transmission and a series of advantages. Increasing attention by both at home and abroad. RV reducer is composed of cycloid pin and planetary carrier with its small size, strong impact resistance, large torque, high positioning accuracy, small vibration, large reduction gear ratio and many other advantages are widely used in industrial robots, machine tools, medical testing Equipment, satellite receiving systems and other fields. It is much higher than the harmonic drive commonly used in robots fatigue strength, stiffness and life expectancy, and hysteresis accuracy and stability, unlike harmonic drive with the use of time as the movement accuracy will be significantly reduced, so many countries in the world High-precision robot drive to use more RV reducer, therefore, the kind of RV reducer in the advanced robot drive has gradually replaced the harmonic reducer trend

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l)传动比范围大;
(2)扭转刚度大,输出机构即为两端支承的行星架,用行星架左端的刚性大圆盘输出,大圆盘与工作机构用螺栓联结,其扭转刚度远大于一般摆线针轮行星减速器的输出机构。在额定转矩下,弹性回差小;
(3)只要设计合理,制造装配精度保证,就可获得高精度和小间隙回差;
(4)传动效率高;

(5)传递同样转矩与功率时的体积小(或者说单位体积的承载能力大),RV减速器由于第一级用了三个行星轮,特别是第二级,摆线针轮为硬齿面多齿啮合,这本身就决定了它可以用小的体积传递大的转矩,又加上在结构设计中,让传动机构置于行星架的支承主轴承内,使轴向尺寸大大缩小,所有上述因素使传动总体积大为减小。


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