Strong impact percussive machine

The utility model provides a powerful impact pneumatic trigger, which includes a shell, a pneumatic motor, a pendulum mechanism, a wrench shaft, and a pendulum shell. The pneumatic motor is arranged in the shell, the front end of the rotor of the pneumatic motor is provided with a transmission shaft, the pneumatic mechanism is arranged in the pendulum shell. The utility model is characterized in that the pendulum mechanism includes two pendulums which are arranged in a pendulum rack symmetrically at 180 degrees, and the two fan-shaped impacting heads of the wrench shaft are staggered and buckled in the cavity of the two pendulums at 90 degrees, the inner cavity of the pendulums is of a curve. Since the inner cavity of the double pendulums is of the curve, the wrench shaft can get two continuous beats from the pendulums during one rotation of the wrench shaft, thereby the transferred torque can be increased by 1.8 times more than a single pendulum mechanism. Due to the above designs, the pendulum blocks can swing in the pendulum rack freely, can bear strong impact, and can transfer the torque with abrasion resistance.