1, gearbox: if you add a number of intermediate parts such as levers or gears between the worm wheel and worm gear, and adjust the position and structure of the moving parts according to the need to form a complex gearbox mechanism, to achieve multi-gear speed change.

2. Planetary gearbox: by embedding components such as planetary wheels between worm gears and worm gears and mounting them on peripheral supports, a planetary gearbox mechanism can be formed to realize higher reduction ratios and output torque. Worm gear mechanism is a commonly used transmission mechanism, which consists of two parts, worm wheel and worm gear, used to achieve high reduction ratio, large torque transfer and other functions.