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渐开线行星齿轮传动是一种具有动轴线的齿轮传动机构。其结构简单,制造方便,体积小,重量轻,效率高,工作平稳,传递的功率范围大,因此,国外在各种工作条件下都得到了广泛的应用。我国已制订了NGW型行星齿轮减速器标准(fB1799—76),并已成批生产。这种减速器与普通圆柱齿轮减速器比较,体积可以减少1/2～1/4,单级传动的效率可达97％～
Involute planetary gear transmission is a kind of gear transmission with moving axis. The utility model has the advantages of simple structure, convenient manufacture, small volume, light weight, high efficiency, stable operation and large power range of transmission, therefore, the foreign countries have been widely applied under various working conditions. China has developed a NGW planetary gear reducer standard (fB1799-76), and has been mass production. This reducer compared with the ordinary cylindrical gear reducer, the volume can be reduced by 1/2 ~ 1/4, single-stage transmission efficiency up to 97% ~