The power head reducer of the excavator is one of the key parts for maintenance during use. The operation status of the reducer can directly affect the performance of the equipment host. Therefore, scientific and reasonable maintenance and repair should be carried out. Next, Ningbo White Hydraulic Technology Co., Ltd. will give you a detailed introduction.

I. Key points for maintenance of excavator power head reducer:

1. Vent

The upper end of the reducer is equipped with an air vent, which aims to ensure the balance of pressure inside and outside the reducer during operation. Therefore, it is necessary to ensure that the air vent of the reducer is unobstructed, and no obstacles can be set around it. When there are many sandstorms in the surrounding environment, screen mesh shall be used to cover them or replace the air filter with better performance. When the vent is blocked and blocked, the pressure inside the reducer will increase, and the industrial lubricating oil will leak from the oil seal at the input or output end, which will reduce the oil volume and pollute the surrounding air.

2 Connecting bolt

When the reducer is running, the output torque is relatively large, and it is under the condition of shock and vibration for a long time. The connecting bolts of the reducer and the connecting bolts of the reducer and the external system are very easy to fall off. Therefore, the fastening condition of each connecting bolt shall be checked immediately (elastic pad shall be added at the connecting bolt or other reliable anti loosening measures shall be taken).

3. Industrial lubricating oil level

Considering that the internal gear, bearing and other components of the reducer operate at high speed during operation, each operating component must be able to obtain sufficient and clean lubricating oil during operation, otherwise, each transmission component will fail early, causing the system to fail to operate normally. Pay attention to the amount of reducer oil and the cleanliness of industrial lubricating oil at any time during use. When the oil quantity fails to meet the requirements, it should be filled in time. When the industrial lubricating oil is very dirty, it needs to be replaced immediately.

4. Oil temperature gauge of industrial lubricating oil

The oil temperature gauge of the reducer will be very high in the summer with continuous high temperature or when the continuous output power is relatively large. When the general industrial lubricating oil exceeds 10OC, its wettability and oil film quality will be significantly reduced, which will cause the wear of the internal gear and bearing of the reducer to be aggravated, and the initial pitting of the gear will occur, affecting the service life. At this time, it can be treated according to the method of using advanced industrial lubricating oil and reducing the oil change cycle time, or according to the method of adding external oil delivery pipes at the two screw plugs to forcibly circulate the system to cool the industrial lubricating oil.

During winter construction, the working environment temperature is low, and the oil temperature gauge of the reducer is also low when the system is just starting to run. When the industrial lubricating oil fails to reach O "℃, its wettability will be significantly reduced. At this time, the oil temperature gauge of the industrial lubricating oil can be raised according to the method of heating the industrial lubricating oil of the reducer, or the industrial lubricating oil can be loaded for operation after a period of no-load operation when the oil temperature is high.