Summary:What is the reason for the crevice corrosion and shedding of the reducer gear?
1. The reducer is a d...
What is the reason for the crevice corrosion and shedding of the reducer gear?
1. The reducer is a driving force transmission mechanism, which uses the speed converter of the gear to reduce the rotation number of the motor to the required rotation number and obtain a large torque mechanism.
2. There are many types of reducers. According to the type of transmission system, they can be divided into gear reducers, turbo reducers, large planetary reducers and the reducers formed by them; according to the proportional series of the transmission system, they can be divided into single Pole and multi-level reducer; according to the shape of the gear, it can be divided into cylindrical gear reducer, bevel gear reducer and cone-cylindrical gear reducer; according to the layout of the transmission system, it can be divided into expansion type, separate type and same tooth Embedded reducer.
3. The gear adopts oil pool lubrication and circulation system lubrication.
4. The lubricating oil should be regularly maintained and replaced. When the newly installed reducer is first used, it must be replaced with new oil after 10-half months of operation. After that, the quality of the oil should be checked on time (2-3 months), and if it is found that it does not meet the requirements, it should be replaced immediately. Generally, the oil should be changed at least once every six months.
What is the reason for the crevice corrosion and shedding of the reducer gear?
a. Materials, strength and shortcomings. The material of the gear does not meet the regulations; the key factor that endangers the contact fatigue limit of the gear is the low strength after the heat treatment process, which cannot ensure the required contact fatigue limit of the gear. In addition, defects on the surface or inside of the teeth are also one of the reasons for the insufficient contact fatigue limit.
b. The gear accuracy is weak. The precision of gear production, processing and installation does not meet the regulations, such as tooth engagement precision and fitness exercise precision are weak. There is also a large error in determining the distance between the housing management center of the arc gear.
c. The lubricating oil does not meet the requirements. The type of lubricating oil applied is wrong, the viscosity of the finished oil is low, and the lubricating properties are weak.
d. The amount of oil is too high. The oil amount is too high and the oil temperature is high, which reduces the viscosity of the lubricating oil, destroys the lubricating characteristics, and reduces the thickness of the oil slick.
