"蜗杆传动" can be translated as "worm drive" or "worm gear drive" in English.
"Worm drive" is a commonly used term to describe the mechanism where a worm (a screw-like gear) meshes with a worm gear (a wheel-like gear) to transmit motion and power, typically at right angles.
"Worm gear drive" is a more specific term that emphasizes the involvement of the worm gear in the transmission.
Both terms are acceptable, and the choice between them may depend on the context or the level of detail required.