Maintenance method for lubrication and cooling system of DTH bit

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DTH (Down The Hole) drill bits are mainly used for mining, construction, and other heavy drilling operations. Due to its harsh working environment, regular maintenance of lubrication and cooling systems is crucial. The following are the maintenance methods for the lubrication and cooling system of the DTH drill bit:

Lubrication system maintenance

1. Choose the appropriate lubricant :
   -Refer to the recommendations of the equipment manufacturer and choose a lubricant suitable for the DTH drill bit. Ensure that the lubricant has good high-temperature stability and anti-wear performance.
2. Regularly replace lubricants :
   -Develop a lubricant replacement cycle based on the operating time and working conditions of the equipment. Usually, the lubricant should be replaced every 200-300 hours of operation.
3. Check the working status of the lubrication system:
   -Regularly check the working status of lubrication pumps, pipelines, and valves to ensure that lubricants can be evenly and continuously supplied to each lubrication point.
4. Cleaning and filtering lubricants:
   -Use efficient filters to keep lubricants clean. Regularly clean the lubrication system to remove carbon deposits and impurities.
5. Check the oil level of the lubricant:
   -Ensure that the oil level of the lubricant is within the normal range and avoid the oil level being too low or too high.

Cooling system maintenance

1. Choose the appropriate coolant:
   -Use high-quality coolant to ensure good thermal conductivity and corrosion resistance.
2. Regularly replace the coolant:
   -Develop a coolant replacement cycle based on the operating time and working conditions of the equipment. Usually, the coolant should be replaced every 500-1000 working hours.
3. Check the working status of the cooling system:
   -Regularly check the working status of the cooling pump, radiator, and pipelines to ensure that the coolant can circulate normally.
4. Clean the cooling system:
   -Regularly clean the radiator and cooling pipelines, remove scale and impurities, and keep the cooling system clean.
5. Check the coolant level:
   -Ensure that the coolant level is within the normal range, avoiding low or high levels.

Comprehensive maintenance suggestions

1. Regular inspection and recording:
   -Develop a detailed maintenance plan, regularly inspect and record the operating status of lubrication and cooling systems.
2. Train operators:
   -Train the operators to understand the working principles and maintenance methods of the lubrication and cooling system of the DTH drill bit.
3. Use high-quality accessories and consumables:
   -Choose high-quality lubricants, coolant, and filters to ensure the reliability and longevity of the system.

By using the above methods, the lubrication and cooling system of the DTH drill bit can be effectively maintained, extending the service life of the equipment and improving work efficiency.