设计了一种具有同步带传动的油膜浮动、完全平衡、均载减振的新型三环式少齿差齿轮减速器;介绍了新型三环式减速器的结构和工作原理;提出了将三片内齿环板中的两侧环板相对中间环板对称布置,并与中间环板相位差成180°的完全平衡方案;给出了油膜浮动均载方案,及以平顶圆弧齿同步带传动作为一级传动的结构;对新型三环式减速器进行了设计计算.新型三环式减速器具有传动平稳、受力合理、噪音低、使用寿命长等特点. A novel tricyclic gearless gear reducer with synchronous, belt-driven oil film floating, complete balance and load-sharing damping is designed. The structure and working principle of the new three-ring gear reducer are introduced. Both sides of the inner annular ring plate ring plate relative to the middle ring symmetrically arranged and the phase plate with the middle ring 180 ° complete balance of the program; gives the floating film are floating plan, and flat-top arc tooth timing belt Transmission as the structure of a drive; the design and calculation of a new type of three-ring reducer. The new three-ring reducer with smooth transmission, reasonable force, low noise, long service life and so on.