1. Basic structural features
Size matching design
The large gear (usually 2-8 meters in diameter) is fixedly connected to the cylinder flange, and the small gear (about 0.5-1.5 meters in diameter) is installed on the transmission shaft, and the modulus of the two is strictly matched. The typical gear ratio is between 4:1 and 6:1, ensuring that the 300-1000rpm speed of the motor is reduced to the 15-25rpm required for the 1. Basic structural features
Size matching design
The large gear (usually 2-8 meters in diameter) is fixedly connected to the cylinder flange, and the small gear (about 0.5-1.5 meters in diameter) is installed on the transmission shaft, and the modulus of the two is strictly matched. The typical gear ratio is between 4:1 and 6:1, ensuring that the 300-1000rpm speed of the motor is reduced to the 15-25rpm required for the ball mill to work.
Material process standards
It is cast with ZG35CrMo alloy steel, and the tooth surface is high-frequency quenched to HRC45-55 hardness. New equipment has begun to apply laser cladding technology to increase the wear life of the tooth surface by more than 40%.

2. Core function realization
Power transmission system
The 200-5000kW power of the motor is transmitted losslessly through precise meshing, and the transmission efficiency can reach 98.5%. The specially designed involute tooth shape can effectively reduce the meshing impact and reduce the vibration noise to below 85dB.
Speed conversion hub
The speed ratio is adjusted by using the difference in the number of teeth. The typical reduction ratio of 4.5:1 can meet the working requirements of Φ3.2×13m ball mill at 18rpm. The double-divided gearbox design can control the torque distribution error within ±2%.
Operation stability guarantee
Equipped with an automatic oil injection lubrication system (oil supply 5-20L/min), the oil film thickness of the gear meshing area is maintained at 0.02-0.05mm. Advanced laser centering technology makes the installation deviation ≤0.1mm/m.