DRIVE MECHANISM FOR SWITCHGEAR

摘要

A drive mechanism (1) for switchgear is presented. The drive mechanism includes a first gear wheel (4) having a first gear ratio, the first gear wheel (4) having a protrusion (34) along a radius of the first gear wheel (4), a second gear wheel (6) having a second gear ratio, the second gear wheel having a groove (48) along a radius of the second gear wheel (6) and a charging shaft (10) having a first end (12) and a second end (14) wherein the first gear wheel (4) and the second gear wheel (6) are mounted coaxially on the charging shaft (10) at the first end (12), such that the protrusion (34) in the first gear wheel (4) engages with the groove (48) on the second gear wheel (6) to rotate the second gear wheel (6) and the charging shaft (10) and wherein the charging shaft (10) is coupled to a spring (20) at the second end (14) of the charging shaft (10), such that the spring (20) is compressed by rotation of the charging shaft (10).