Views: 0 Author: WGT Publish Time: 2021-11-30 Origin: WGT
Worm gear is worn. The worm gear is generally made of tin bronze. The matched worm material is generally hardened to hrc45-55 with 45 steel, and 40C: Hardened hrc50-55 is also commonly used. It is ground to the roughness rao.8fcm by the worm grinder. During the normal operation of the reducer, the worm is like a hardened "file" and keeps filing the worm gear to cause wear of the worm gear. Generally speaking, this kind of wear is very slow. Like some reducers in a factory, they 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 gear, assembly quality or service environment. Solution: selection of lubricating oil and additives. Worm gear reducers generally use 220# gear oil. For some reducers with heavy load, frequent startup and poor use environment, the factory also selects some lubricating oil additives (such as those of Anzhi chemical company). When the reducer stops running, the gear oil is still attached to the gear wheel surface to form a protective film to prevent heavy load and low speed, Metal to metal contact during high torque and start-up. The additive also contains sealing ring regulator and anti leakage agent to keep the sealing ring soft and elastic and effectively reduce lubricating oil leakage.