The reducer plays the role of matching the speed and transmitting torque between the prime mover and the working machine or the actuator. The reducer is a relatively precise machine. The purpose of using it is to reduce the speed and increase the torque. However, the working environment of the reducer is quite harsh. Failures such as wear and leakage often occur, so how to avoid these failures? The following small series will tell you some solutions and measures to avoid the problem.

1. When working

During work, when it is found that the oil temperature rises over 80°C or the oil pool temperature exceeds 100°C and abnormal noise occurs, it should be stopped.

2. Oil change

When changing the oil, wait for the reducer to cool down and there is no danger of burning, but it should still be kept warm, because after complete cooling, the viscosity of the oil will increase and it will be difficult to drain the oil. Note: To cut off the power supply of the drive, prevent unintentional power on.

3. Operation

After 200~300 hours of operation, the oil should be changed for the first time, and the quality of the oil should be checked regularly in subsequent use, and the oil mixed with impurities or deteriorated should be replaced in time. Under normal circumstances, for the reducer that works continuously for a long time, the new oil should be replaced according to 5000 hours of operation or once a year. The reducer that has been out of use for a long time should also be replaced with new oil before restarting. The reducer should be added with the same oil as the original grade, and must not be mixed with oils of different grades. Oils of the same grade but different viscosities are allowed to be mixed.

4. Oil leakage

Pressure equalization: The oil leakage of the reducer is mainly caused by the increase in the pressure in the box, so the reducer should be equipped with a corresponding ventilation hood to achieve pressure equalization. The ventilation hood should not be too small. A simpler inspection method is to open the upper cover of the ventilation hood. After the reducer runs continuously at high speed for five minutes, touch the ventilation opening with your hand and feel that the pressure difference is large, indicating that the ventilation hood is small and should be increased. Or raise the fume hood.

Smooth flow: Make the oil spilled on the inner wall of the box flow back to the oil pool as soon as possible, and do not keep it at the seal of the shaft head to prevent the oil from gradually leaching along the shaft head. For example, an oil seal ring is designed on the shaft head of the reducer, or a semicircular groove is glued on the upper cover of the reducer at the shaft head, so that the oil splashed on the upper cover flows to the lower box along the two ends of the semicircular groove.

5. How to use

The user should have reasonable use and maintenance rules and regulations, and carefully record the operation of the reducer and the problems found in the inspection, and the above regulations should be strictly implemented.