Analysis of the Main Causes of Drill Pipe Slippage in Rotary Drilling Rigs

In engineering practice, drill pipe slippage in rotary drilling rigs is one of the most common malfunctions. The primary cause of drill pipe slippage in rotary drilling rigs is the lag of the braking system, which accounts for approximately 60% of the malfunction cases. Secondly, the failure of the hydraulic lock is also an important factor leading to drill pipe slippage in rotary drilling rigs.

Effective Solutions to Drill Pipe Slippage in Rotary Drilling Rigs

Regarding the problem of drill pipe slippage in rotary drilling rigs, we recommend the following solutions:

1. Regularly check the sealing of the solenoid valve.

2. Adjust the lock core of the hydraulic lock in a timely manner.

3. Optimize the oil flow rate of the braking signal.

These measures can effectively prevent and solve the problem of drill pipe slippage in rotary drilling rigs.

Daily Maintenance Suggestions

To avoid drill pipe slippage in rotary drilling rigs, operators should:

• Check the braking system daily.

• Test the performance of the hydraulic lock weekly.

• Conduct a comprehensive system maintenance monthly.

Good maintenance habits can significantly reduce the probability of drill pipe slippage in rotary drilling rigs.

The rotary drilling rig of Hengwang Group is a construction machine suitable for hole - forming operations in building foundation projects. It is mainly suitable for construction in soil layers such as sandy soil, clay, and silty soil, and is widely used in various foundation construction projects such as bored piles, diaphragm walls, and foundation reinforcement.