FAST ASSEMBLED AND DISASSEMBLED DRILL CHUCK

摘要

A drill chuck which has a drill body (1) is disclosed. A motor shaft hole (11) extends axially from the back end of the drill body (1) into the same. The back part of the drill body (1) is further provided with a limiting hole normal to the motor shaft hole (11), and a movable limiting member (8) for a motor shaft (4) is provided in the limiting hole. The drill chuck is further provided with a device to operate the limiting member (8) into or out of a limiting fit state with the motor shaft (4). A torque transferring column (12) which can be connected with the motor shaft (4) is provided axially in the motor shaft hole (11). The upper end of the torque transferring column (12) is arranged under the limiting hole. The drill chuck of the invention can be quickly attached to and detached from a machine tool or a pistol drill with an assorted motor shaft, and the torque transferring structure is more reliable so that the cutting strength of the drill chuck is increased.