Worm gear is generally made of tin bronze, and the matching worm material is generally hardened to HRC45-55 with 45 steel, and it is also commonly used at 40C: hardened HRC50-55 and ground to the roughness of RaO. 8 fcm passes through worm mill. When the reducer works normally, the worm is like a hardened "file", which keeps filing the worm wheel, causing the worm wheel to wear. Generally speaking, this kind of wear is very slow, for example, some reducers in a factory can be used for more than 10 years. If the wear speed is fast, it is necessary to consider whether the selection of reducer is correct, whether there is overload operation, the material of worm wheel and worm, the assembly quality or the use environment.
2. Gear box bevel gear is worn.
Generally, it occurs on vertically installed reducers, which is mainly related to the amount of lubricating oil added and the selection of lubricating oil. When installed vertically, it is easy to cause insufficient lubricating oil. When the reducer stops running, the transmission gear oil between the motor and the reducer is lost, and the gear is not properly lubricated, resulting in mechanical wear and even damage. Take the machine reducer as an example