Technical Upgrade of Hydraulic System for Rotary Drilling Rigs: Building Core Capabilities for Stable Equipment Operation and Control

Optimization of main pump and valve group, consolidating the foundation for stable system operation

The hydraulic main pump and main control valve group are the core units for the power output of the rotary drilling rig. The new generation upgrade plan focuses on optimizing the adaptive matching logic of the main pump power, dynamically adjusting the flow output according to the drilling tool load, and avoiding pressure surges and system overflow heating problems under high load drilling conditions. Upgrade the anti impact main control valve group to suppress the pressure impact caused by drilling collapse and encountering hard rock layers, reduce valve wear and internal leakage failures, lower the system failure rate of long-term continuous construction, and ensure uninterrupted operation on the pile foundation construction site.

Fine tuning of control circuit to enhance operational feel and response accuracy

The control experience directly affects the efficiency of the robotic drilling operation. The technological upgrade focuses on fine-tuning the pilot control circuit, optimizing the flow distribution curve, and achieving linear action response. Under the working conditions of main roll lifting, power head rotation, and mast pitch composite action, it effectively avoids the phenomenon of action lag and action rush. The instructions of the manipulator handle can be smoothly converted into mechanical actions, making the alignment hole position more precise, reducing human operation errors, and adapting to the construction needs of pile foundations in deep and complex formations.

Upgraded heat dissipation and filtration system, extending the service life of hydraulic components

High temperature and oil impurities are the main causes of hydraulic system failure. The upgraded hydraulic system enhances its heat dissipation and exchange capabilities, optimizes the intelligent start stop control of the cooling fan, and controls the oil temperature within a reasonable range during heavy-duty construction. Synchronously upgrade multi-level oil filtration protection, intercept dust and impurities mixed in the construction environment, and protect pumps, motors, and seals from damage. Stable oil working conditions, reducing common on-site failures such as oil leakage and seal damage, reducing equipment downtime and maintenance frequency, and improving equipment attendance.

Intelligent matching of load sensing, balancing work efficiency and energy consumption performance

By relying on load sensing technology iteration, the hydraulic system can identify drilling resistance in real time and dynamically allocate power flow. Drilling into soft soil layers reduces power output, while in hard rock conditions, sufficient pressure is instantly released, allowing the power head and main winch to obtain power as needed. Not only does it improve the stability of the entire machine operation in complex geological formations, but it also avoids unnecessary power loss. This upgrade enables the equipment to operate smoothly during deep pile and high torque construction, while controlling fuel consumption and balancing construction efficiency and equipment durability.

Sealing and shock absorption structure improvement, adapted to harsh construction site operating environments

The vibration and mud dust environment on construction sites pose severe challenges to hydraulic pipelines and sealing components. Upgrade and optimize pipeline layout and shock absorption buffer structure to reduce pipeline vibration fatigue caused by drilling rig rotation and impact drilling. Adopting high-performance high-pressure resistant sealing components to reduce the risk of leakage under high-pressure conditions. Reduce the losses caused by harsh outdoor conditions at the hardware level, ensure long-term stability and handling performance, and lower customer maintenance costs in the later stage.