Punch transmission mechanism

The utility model provides a punch transmission mechanism which comprises a main motor and a flywheel in the level of belt transmission and further comprises high-speed gear transmission and low-speed gear differential transmission. The low-speed gear differential transmission comprises a middle gear shaft, a left spur gear, an idler pulley and a right spur gear. The middle gear shaft is meshed with the left spur gear and the idler pulley. The idler pulley is further meshed with the right spur gear. The right spur gear and the left spur gear are symmetrically arranged and opposite to each other in the rotating direction. The high-speed gear transmission comprises a middle big Y-shaped gear and a transmission Y-shaped gear shaft. The middle big Y-shaped gear is fixedly connected to the middle gear shaft. The main motor is fixedly connected with a small belt wheel. The flywheel is connected to the transmission Y-shaped gear shaft through a clutch. By means of the punch transmission mechanism, the operation noise generated by a punch device is reduced, the punch device is made to work stably, and the bearing capacity is higher.