1. Increased pressure in the oil tank
In a closed planetary gear reducer, each pair of gears will generate heat when friction occurs. According to Boyle Marie, as the running time increases, the temperature in the reducer box gradually increases, while the volume of the reducer box remains unchanged, so the pressure in the box increases accordingly. As the oil permeability is relatively strong, under the pressure in the box, the oil will seep out from any place where the seal is not tight.
2. Oil leakage caused by unreasonable structural design of planetary gear reducer
If the designed reducer does not have a ventilation hood, the reducer cannot achieve equal pressure, causing the pressure in the box to become higher and higher, resulting in oil leakage.
3. Too much oil
During the operation of the planetary gear reducer, the oil pool is stirred violently, and the lubricating oil splashes everywhere in the machine. If too much oil is added, a large amount of lubricating oil will accumulate in the shaft seal, joint surface, etc., causing leakage.
4. Improper maintenance process
During equipment maintenance, oil leakage may occur due to incomplete removal of dirt on the joint surface, improper selection of sealant, reverse installation of seals, and failure to replace seals in time.
The reducer is used in a high temperature environment, the radial force of the output shaft is too large, and the reducer has been used for a long time, resulting in aging of the seals.
