The development prospect of asphalt mixing plant is very broad, and the product market competition is very fierce. When the device is in use, uneven wear of the supporting wheels and wheel rails often occurs, and sometimes abnormal noise and edge gnawing phenomenon will occur. The main reason is that after the mixing station has been working for a period of time, its drying cylinder will rub against the supporting rollers, wheel rails, etc. under the action of high temperature.