"蜗轮传动装置" can be translated into English as "worm gear drive" or "worm drive mechanism".
"Worm gear drive" emphasizes the gear component (worm gear) involved in the transmission.
"Worm drive mechanism" highlights the entire mechanism or system that utilizes the worm and worm wheel for power transmission.
Both terms are commonly used in mechanical engineering contexts to refer to this type of transmission device.