Paper feeder universal shaft pin break caused by paper feed

1. Cause analysis

The movement of each part of the paper feed is mainly realized by the cam movement. The paper feeder fly to the universal joint transmits the power to the Feida axle, and drives the camshaft to rotate circumferentially. Due to the different mounting positions of the cams and their movement trajectories, the circumferential force of the camshaft when it is cycled one week is not balanced. The Feida camshaft is affected by the cam motion and will break the balance of the transmission torque. Therefore, the paper feeder is prone to uneven feeding and pause during the movement.

At the main drive shaft end of the Feida transmission universal coupling, the adjustment of the flywheel gear gap of the Feida universal coupling can be used to reduce the circumferential force imbalance caused by the feed-feeding movement, but the gap is Should be adjusted properly. If the gap is too small, although the movement of the paper feed can be kept balanced, the resistance of the transmission mechanism will be increased, and the load of the paper machine will be increased, which will easily cause the heat of the bevel gear to expand during the movement. When the paper feeding load is increased to a certain extent, the shaft pin of the universal joint is easily broken.

2. Solution

When adjusting the gap of the flying bevel gear of the Feida universal coupling, the handwheel of the paper feeder should be continuously moved by hand during the adjustment process to understand the change of the load of the paper feeder at any time, so that the matching of the gap of the bevel gear is appropriate and does not affect. Transmission load.