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Address: No. 301, Xujia Village, Jingxi Town, Minhou County, Fuzhou City, Fujian Province, China
Fuxing Avenue, Jinan District, Fuzhou City, Fujian Province, China
Mobile phone: +86 591 83629866、83622555
Fax：+86 591 83629866、83622555
Structural features of Gearbox used for rolling mills
Gearbox used for rolling mills type: all horizontal Gearbox used for rolling mills are horizontally divided, all levels of transmission gears are arranged as far as possible in the face of the gear box; there are observation holes in the meshing parts of the reducer gears, and the size of the observation holes is sufficient Large, transparent plexiglass should be used on the outside; the whole machine is equipped with a separable base plate.
Lubrication method: The lubrication of Gearbox used for rolling mills adopts thin oil forced lubrication; thin oil lubrication pipeline is arranged inside the box; electric contact flow signal meter + mechanical pressure gauge are set. The inlet and outlet oil pipes of the gearbox are connected by flanges.
Output shaft type: hollow output shaft, the length of the end face of the hollow shaft protruding from the outer surface of the box shall not be less than 300mm.
Seal: The input/output shaft of Gearbox used for rolling mills adopts maintenance-free mechanical labyrinth seal; the input shaft is also set with oil return pipeline, the internal oil return hole of Gearbox used for rolling mills should be enlarged to ensure no oil leakage An external oil return hole is added to the oil return line, and an oil return line is added on the end face of the oil return line, and the oil in the box flows to the main oil return line through this line to ensure no oil leakage.
Dynamic balance: If the linear speed of the shaft (at the maximum diameter) is greater than 15m/s, the dynamic balance test is performed, and the test level is 2.5.
Gear accuracy: Gearbox used for rolling mills gears are ground by hard tooth surface, cylindrical gear processing accuracy is grade 5 specified by GB10095-2008, and bevel gear processing accuracy is grade 6 specified by GB10095-2008; bevel gear adopts Klingen Bell gear system.
Gear material: The gear and gear shaft are made of high-quality low-carbon alloy steel 20CrNi2MoA, carburized and quenched, hardened tooth surface gear, and the tooth surface hardness is HRC58~62; the shaft material is alloy steel 42CrMoA, which is quenched and tempered.
Noise level: The noise at a distance of 1 meter from the Gearbox used for rolling mills is not greater than 85dB.
Theoretical life of the gearbox: Gearbox used for rolling mills is designed with infinite life; when the bearing is fully loaded, the L10h life of the bearing is not less than 50,000 hours, and the allowable speed of the bearing is greater than the maximum speed of the motor.
Gearbox used for rolling mills The structure of the box is designed according to the heavy load, and there is enough safety factor to bear the impact load in the case of equipment start-stop and accident.