Application of Rotary Drilling Rig Centralized Lubrication System Becomes Inevitable

In recent years, rotary drilling rigs have become the leading products in pile engineering machinery. Due to their mobility, high construction efficiency, low noise, low pollution, and ease of maintenance, they have been widely used in pile foundation projects for high-rise buildings, highways, railways, and bridges. Compared to traditional percussive drilling for hole formation, rotary drilling rigs offer significant advantages in terms of drilling efficiency, environmental protection, construction quality, and economic benefits, which have led to their widespread application.

Rotary drilling rigs work in harsh environments where dust, water, and loads are significant. In particular, the vibration of the entire machine during operation is relatively large. Such a working environment is very unfavorable for the pins and bearings on the entire machine. Therefore, in addition to increasing the strength of the pins, it is also necessary to lubricate the various moving parts in a timely manner.

Manually lubricating rotary drilling rigs presents many problems:

• The lubrication points on rotary drilling rigs are numerous and unevenly distributed. The number of lubrication points varies between different models, and they are difficult to centralize.
  

• The lubrication points are high and unsafe. Even if the mast is lowered, some lubrication points are still over 3 meters high, requiring high-altitude operations for manual lubrication.
  

• Some lubrication points require daily oiling (such as the roller carriage and main hoist). Manual lubrication takes time and affects construction efficiency.
  

• The construction environment is relatively poor, and the work site is not fixed. It is far from air sources and other auxiliary oiling equipment, so manual oiling, which is both dirty and tiresome, is mostly used.
  

• Labor costs are increasing year by year, and manual lubrication does not meet the trend of automation.
  

• It is difficult to quantify the oiling; each manual lubrication relies on feel.
  

Advantages of Applying Centralized Lubrication Systems in Rotary Drilling Rigs

• Central lubrication system saves labor costs, enhances automation level, simplifies operational procedures, and reduces the skill requirements for personnel.
  

• Safe and convenient, with the lubrication pump set near the chassis, eliminating the need for high-altitude oiling operations. You only need to periodically check the pump operation status and the integrity of each pipeline joint.
  

• Saves construction time, as centralized lubrication only requires periodic replenishment of grease to the lubrication pump.
  

• Reliable operation and easy maintenance. If a joint or pipeline is damaged, it can be quickly restored with spare parts.
  

• Centralized lubrication system can enforce lubrication based on the needs of each lubrication point, and the lubrication frequency is adjustable.
  

The application of centralized lubrication systems in rotary drilling rigs has shown significant results. It reduces equipment downtime for maintenance and allows for timely equipment upkeep, effectively reducing the wear between rotating components. Compared to traditional manual lubrication, centralized lubrication systems help reduce bearing failures, and additionally, they can save maintenance costs and parts expenses. In summary, the application of centralised lubrication systems in rotary drilling rigs plays an important role in enhancing the longevity and performance of the machinery.