The Application of Second-hand Rotary Drilling RIGS in Photovoltaic Pile Foundation Construction: Key Points for Accessory Compatibility

In the field of photovoltaic pile foundation construction, second-hand rotary drilling RIGS have become the choice of many construction parties due to their cost advantages and flexible working performance. However, the compatibility of the accessories of second-hand equipment directly affects the construction efficiency and the quality of the pile foundation. It is necessary to precisely control the key compatibility points to ensure the stable operation of the equipment.

1. Drill pipe fitting: It is necessary to match the torque of the drilling rig with the depth requirements of the photovoltaic pile foundation. It is preferred to choose the original drill pipes of the same brand to avoid construction interruption due to insufficient strength of the drill pipes or mismatched interfaces. At the same time, check the wear degree of the drill pipes to ensure that their load-bearing capacity meets the construction standards.

2. Drill bit selection: Select the corresponding type of drill bit based on the geological conditions of the photovoltaic construction site (such as clay, sand, and rock layers). For instance, spiral drill bits are suitable for soil layers, while cone drill bits are required for rock layers. Moreover, the diameter of the drill bit must precisely match the design dimensions of the pile foundation.

3. Power head adaptation: The output speed and torque of the power head need to be coordinated with the parameters of the drill pipe and drill bit. For second-hand equipment, the sealing performance of the power head should be particularly tested to prevent hydraulic leakage from affecting power transmission and ensure that the rapid drilling requirements for photovoltaic pile foundations are met.

4. Hydraulic system accessories: Hydraulic pumps, cylinders and other accessories must match the flow rate of the main pump of the drilling rig. Original factory or replacement parts of the same model should be preferred to avoid hydraulic system failure caused by pressure incompatibility, which may affect the continuity of pile foundation construction.

5. Electrical control system: Electrical components such as sensors and operation panels must be compatible with the drilling rig's control system. For second-hand equipment, the sensor accuracy needs to be recalibrated to ensure precise control of drilling depth and rotational speed, meeting the positioning requirements of photovoltaic pile foundations.

6. Track chassis accessories: The track plates, idler wheels and other accessories need to be adapted to the terrain of the construction site. On soft ground, wide track plates should be replaced to enhance grounding. At the same time, the coordination of the chassis walking system should be checked to ensure that the drilling rig can move flexibly on the photovoltaic site.

In conclusion, when it comes to the accessory matching of second-hand rotary drilling RIGS in photovoltaic pile foundation construction, it is necessary to precisely match the core systems such as drilling tools, power, hydraulics, electricity, and chassis. Reasonable selection and inspection of accessories can not only reduce the risk of failure of second-hand equipment, but also improve the efficiency and quality of photovoltaic pile foundation construction, providing reliable support for photovoltaic project construction.