Our company rolling mill gear box structure features
Output shaft type: hollow output shaft. The length of the outer surface of the box protruding from the end face of the hollow shaft shall not be less than 300mm.
Seal: gear reducer input/output shaft adopts mechanical labyrinth seal without maintenance; At the same time, the oil return pipeline is set up on the input shaft. The internal oil return hole of the reducer should be increased to ensure no oil leakage. The external oil return hole should be added at the oil collecting cover.
Dynamic balancing: if the linear velocity of the shaft (at the maximum diameter) is greater than 15m/s, the test grade is 2.5.
Gear precision: the gear adopts hard surface grinding, and the machining accuracy of cylindrical gear is 5 levels specified in gb10095-2008. The machining accuracy of taper gear is 6 levels specified in gb10095-2008. The bevel gears are made of klingen bell teeth.
Tooth gap requirements: according to relevant standards
Gear material: gear and gear shaft material is made of high-quality low carbon alloy steel 20CrNi2MoA, carburized and hardened, hard tooth surface gear, tooth surface hardness HRC58~62; The material of the shaft is alloy steel 42CrMoA, which is used for tempering.
The box structure of reducer of rolling mill