The invention relates to a handheld turning gear, and relates to the technical field of overhaul devices. The handheld turning gear comprises a motor, a driver, a
handle and a speed
reducer, wherein the driver is arranged on the motor, the
handle is electrically connected with the drive so as to control the motor to positively and negatively rotate, the speed
reducer is arranged on one side of themotor and is used for increasing the output torque of the motor, the speed
reducer is coaxially fixed to an output shaft of the motor, a mounting mechanism is arranged between the motor and the speedreducer, the mounting mechanism comprises a blind
flange which is arranged on one side, which is close to the output shaft, of the motor, locking blocks which are arranged on the blind
flange in a sliding mode and are located on both sides of the output shaft, driving pieces which are arranged on the blind
flange and are used for driving the locking blocks to slide and a locking ring which is arranged on the speed reducer, the locking blocks are in inserting matching with the locking ring during sliding, and the sliding direction of the locking blocks is perpendicular to the axial direction of the motor. The handheld turning gear has the
advantage that the mobile transportation and disassembly and
assembly workload is reduced so as to improve the maintenance efficiency.