Patent ID: 8485937

Claim:
A clamping device for a cutting member, comprising: a rotating sleeve and a quick clamping body, wherein a first sun gear is arranged in the center of the inner side of the rotating sleeve; a first stage planetary gear having multiple planetary gears cooperating with the first sun gear, the multiple planetary gears being arranged on multiple pins of a planetary carrier; a second stage planetary gear having multiple planetary gears cooperating with a second sun gear arranged on the planetary carrier, and the multiple planetary gears being arranged on multiple pins of the quick clamping body; the quick clamping body including a disc-shape head and a cylindrical tail, and an inner ring gear being arranged outside of the first stage planetary gear, the second stage planetary gear and the head of the quick clamping body; and, the planetary carrier, the quick clamping body and the rotating sleeve being coaxial with each other.