Transmission assembly for planetary reducer

The utility model relates to the field of transmission assemblies of speed reducers, and discloses a transmission assembly for a planetary reducer, which comprises a shell, a first rotating rod is arranged in the middle of the upper surface of the shell, a first connecting sleeve is arranged at the lower end of the first rotating rod, and a threaded disc is arranged at the lower end of the first connecting sleeve. A second connecting sleeve is arranged at the lower end of the threaded disc, a first gear sleeve is arranged at the lower end of the second connecting sleeve, a plurality of first bevel gears are arranged on the inner wall of the first gear sleeve, first limiting blocks are arranged at the lower ends of the first bevel gears, and second bevel gears are arranged at the lower ends of the first limiting blocks; and second gear sleeves are arranged on the outer walls of the second bevel gears. According to the device, the practicability and the working efficiency of the device are greatly improved thro