When the reducer is running, how does the Aluminum Oil Plug ensure that the gas inside the box is discharged normally?

The Aluminum Oil Plug is usually composed of a plug cap, a plug body, a spring and a plug cover gasket. The plug cap is located on the outermost side, which plays a role in protecting the internal structure and may be engraved with threads to connect with the reducer housing. There is a vent inside the plug body, which is the main channel for gas to enter and exit. The spring is located between the plug cap and the plug cover gasket, which plays an elastic support role to ensure that the plug cover gasket can fit tightly or open in time.
The vent hole of the plug body is designed to be more delicate, which must ensure the smooth passage of gas and prevent external contaminants from directly entering. At the same time, grooves are provided on the threaded wall of the plug cap or the plug body, which are connected to the external environment to form an auxiliary channel for gas discharge. When the internal air pressure increases, the gas can be quickly discharged through the vent hole and the groove.
The Aluminum Oil Plug is fully considered in the design of sealing. The plug body and the reducer housing are tightly matched through threads to ensure the sealing of the connection. At the same time, the plugging gasket fits tightly on the vent hole under the action of the spring, forming a second sealing line of defense. This double sealing design effectively prevents the entry of external contaminants.
When the reducer is running, the friction of internal gears and other components will generate heat, causing the temperature inside the box to rise. As the temperature rises, the air expands and the pressure gradually increases. When the internal air pressure exceeds a certain threshold, the gas will enter the vent area through the inner cavity of the plug. Due to the effect of gas pressure, the plugging gasket will be pushed open to form a channel for gas discharge. At this time, the gas can be quickly discharged into the external environment through the vent hole and groove.
When the reducer stops running or the internal air pressure decreases, the spring will play its elastic support role, press the plugging gasket back onto the vent hole, and close the channel for gas discharge. This automatic sealing mechanism ensures that the reducer can maintain the sealing of the internal environment in a static or low-pressure state to prevent external contaminants from entering.
During the operation of the reducer, as the internal temperature rises and the air pressure increases, the gas will gradually gather in the vent area. When the air pressure reaches a certain level, the gas will push open the plugging gasket to form a continuous gas flow channel. At this time, the gas can be quickly discharged into the external environment through the vents and grooves, thereby reducing the internal pressure.
The design of the Aluminum Oil Plug ensures the high efficiency and stability of ventilation. The size and shape of the vents are carefully calculated to ensure that the gas can pass smoothly. At the same time, the design of the grooves also takes into account the flow direction and speed of the gas, further improving the ventilation efficiency. During the gas discharge process, the Aluminum Oil Plug can maintain stable ventilation performance and ensure timely balance of internal pressure.
When the reducer stops running or the internal air pressure decreases, the spring will gradually restore its elastic deformation and press the plugging gasket back onto the vent. This process is automatic and does not require external intervention. With the closure of the plugging gasket, the gas discharge channel is cut off, and the internal environment of the reducer is restored to a sealed state.
During the pressure balance stage, the sealing of the Aluminum Oil Plug is maintained. The close fit between the plugging gasket and the vent effectively prevents the entry of external contaminants. At the same time, the threaded fit between the plug body and the reducer housing also provides additional sealing protection. This double seal design ensures that the reducer can maintain a clean and stable internal environment when it is stationary or under low pressure.