The gear reducer is the key equipment of the vertical mill system. Because the mission and working conditions of the gear reducer are particularly bad, it needs to operate continuously under the conditions of impact, vibration and overload, and the service life is required to be more than 15 years, with particularly high reliability requirements. Therefore, the use of the vertical mill puts forward higher requirements for the design and manufacture of the gear reducer. During the repair process, the gear reducer parts are always in the normal temperature state, without internal stress, thermal deformation, crack, annealing, softening, and potential impact of fracture and crack. High bonding strength, no falling off, no hard spots, high surface finish and adjustable hardness. It can repair low carbon steel and low carbon alloy steel, medium carbon steel and medium carbon alloy steel, high carbon steel and high carbon alloy steel, high strength alloy steel, stainless steel, cast steel, cast iron, copper and copper alloy, aluminum and aluminum alloy, zinc and zinc alloy, chromium, nickel, chromium nickel steel and unknown materials. The repair position is accurate and flexible, and the repair quantity can control the accuracy. It can also be repaired on site without disassembly. After the repair, the tooling grinding technology can be used to accurately restore the size. The reducer is used for grinding cement, coal and other industrial raw materials such as construction, chemical industry and ceramics. It has a series of advantages, such as small volume, light weight, less land occupation, low power consumption, more than 30% of the agreement on energy saving, long service life and so on.
