The calculated result indicates that the two dimensional analysis can really reflect the modal characteristics of the sluice, and the effect of the twist vibration of the buttress cannot be neglected.

Conveyer can be classified according to the conveying form into chain conveyer, belt conveyer, twist conveyer, roller conveyer, vibration conveyer buckets conveyer and so on.

Based on the basic principle of vibration drilling, its kinematics characteristics was analyzed and the cutting conditions of twist drill were studied.