The utility model discloses a sieve motor and vibrator connection structure soon shake, the sieve body that shakes soon on including the support and being fixed in the support, shake soon and be equipped with the vibrator on the pendulum of sieve body, be fixed with the eccentric block in the pivot of the upper and lower both sides of this vibrator respectively, it is fixed with the spring fixing base to change the tip of the axis at the vibrator downside, with be equipped with the bearing frame on the vertical relative support of spring fixing base, be fixed with the pivot through the bearing in this bearing frame, at the fixed driven pulley in the top of pivot, be fixed with the spring between driven pulley and the spring fixing base, one side of support is equipped with motor base, the motor is fixed in on the motor base, be equipped with the drive pulley relative with the driven pulley level on this motor shaft, be connected through the belt between drive pulley and the driven pulley. The utility model discloses a mode that vibrator and normal motor combined together replaces vibrating motor as the excitation source, promotes the life of motor, reduction equipment running cost to use easy to assemble.