How does the aluminum oil plug ensure the balance of atmospheric pressure inside and outside the reducer?

In the design and operation of the reducer, the balance of atmospheric pressure is crucial. The friction of the gears and the stirring of the oil inside the reducer will generate heat, causing the temperature to rise, which in turn causes the air in the box to expand and the internal pressure to rise. If this pressure cannot be effectively released, it may cause the lubricating oil to seep out of the seal and even affect the normal operation of the reducer. Therefore, as a key ventilation and sealing component, the aluminum oil plug plays an important role in the reducer.
The aluminum oil plug is usually made of die-cast aluminum alloy, which has good mechanical properties and corrosion resistance and can maintain stable performance under harsh working conditions. Structurally, the aluminum oil plug usually includes a vent hole that communicates with the inside of the reducer housing, and a threaded part for installation and sealing. The vent hole allows the gas inside the housing to be discharged smoothly when the pressure rises, while the threaded part ensures that when ventilation is not required, the oil plug can tightly close the vent hole to prevent external impurities and moisture from entering.
When the temperature inside the reducer rises and the pressure increases, the vent holes of the aluminum oil plug allow gas to flow from the inside of the box to the outside, thereby reducing the internal pressure and preventing lubricating oil leakage caused by excessive pressure. This process is automatic and does not require manual intervention, ensuring the continuous and stable operation of the reducer.
When the internal pressure of the reducer is reduced or reaches equilibrium, the threaded part of the aluminum oil plug fits tightly with the box to form an effective seal. This seal not only prevents external impurities and moisture from entering the interior of the reducer, but also keeps the inside of the box clean and dry, providing a good environment for the normal operation of the reducer.
The design of the aluminum oil plug takes into account various working conditions and needs of the reducer. For example, the size and position of the vent hole can be adjusted according to the specific size and internal layout of the reducer to ensure the best ventilation effect and sealing performance. In addition, the material and manufacturing process of the aluminum oil plug have also been strictly screened and tested to ensure that it can maintain stable performance under harsh working conditions.
By using the aluminum oil plug, the reducer can maintain the balance of internal and external atmospheric pressure, thereby avoiding lubricating oil leakage and failure caused by excessive internal pressure. This not only improves the reliability and durability of the reducer, but also reduces maintenance and replacement costs. In addition, the sealing performance of the aluminum oil plug also ensures the stability of the internal environment of the reducer and extends the service life of the reducer.