渐开线少齿差行星齿轮减速器具有单级速比范围大、体积小、重量轻、效率高、同轴线传动、加工和拆装均方便等优点,目前已在建筑工程机械、起重运输机械、农机、轻工、仪器仪表、机床附件等工业部门推广应用。随着应用范围的扩大,其结构型式也逐渐增多。但是,由于它的齿轮变位计算较为复杂,结构设计也需花费相当多的时间,以致影响推广。为了减少设计中的重复劳动,我们按照上海某厂单级卧式摆线针轮减速器系列的外形尺寸,设计了一套单级卧式渐开线少齿差行星齿 Involute small tooth planetary gear reducer has the advantages of large single-speed ratio range, small size, light weight, high efficiency, convenient coaxial drive, processing and disassembly, and is currently used in construction machinery, lifting Transportation machinery, agricultural machinery, light industry, instrumentation, machine tool accessories and other industrial sectors are popularized and applied. With the expansion of the scope of application, its structural types have gradually increased. However, due to its complex calculation of gear displacement, the structural design also takes a considerable amount of time, which affects the promotion. In order to reduce the duplication of work in the design, we designed a single-stage horizontal involute toothless planetary gear according to the external dimensions of a single-stage horizontal cycloid reducer series from a factory in Shanghai.