1. Improve the vent cap and inspection hole cover: The internal pressure of the reducer is greater than the outside atmospheric pressure is one of the main reasons for oil leakage. If you try to balance the pressure inside and outside the machine, oil leakage can be prevented.  

Although the reducer has a vent cap, the vent hole is too small, it is easy to be blocked by coal powder and oil, and the inspection hole cover must be opened every time the oil is refueled. Once opened, the possibility of oil leakage will increase once, so that the original leak does not leak. Leaks also occurred in places.  

2. Smooth flow: To prevent the excess lubricating oil thrown on the bearing by the gear from accumulating at the shaft seal, the excess lubricating oil must flow back to the oil pool in a certain direction, that is, to achieve a smooth flow.The specific method is to open an oil return groove in the center of the lower shell of the bearing seat that is inclined toward the inside of the machine, and at the same time open a gap at the straight opening of the end cover. Return to the oil sump.  

3. Adopting new sealing materials: For the static sealing point leakage of the reducer, new polymer repair materials can be used to repair the stickiness.If the static seal point of the reducer leaks oil during operation, the oil surface emergency repair agent of surface engineering technology can be used to plug it with polymer 25551 and 90T composite repair materials, so as to achieve the purpose of eliminating oil leakage.  

4. Carry out the maintenance process carefully: When the reducer is overhauled, the process regulations must be carefully implemented. The oil seal should not be installed reversely, the lip should not be damaged, the outer edge should not be deformed, the spring should not fall off, the joint surface should be cleaned, the sealant should be evenly applied, and the oil should be applied. The amount should not exceed the scale of the oil dipstick.  

5. Wiping: The static sealing point of the reducer can generally be leak-proof through treatment. However, due to the aging of the seal, poor quality, improper assembly, and high shaft surface roughness, the dynamic sealing point still remains There is a small leakage. Due to the poor working environment, coal dust sticks to the shaft and appears to be oily. Therefore, it is necessary to wipe the oil on the shaft after the equipment stops.