What Are The Core Components of A Second-hand Rotary Drilling Rig?

The efficient operation of rotary drilling RIGS relies on the collaborative work of multiple core components. For second-hand equipment, the condition of these components is even more crucial for assessing their value. The following six core components need to be given special attention

1. Power head: As the "power heart" of drilling, it is responsible for driving the drill pipe to rotate. Its rotational speed and torque directly affect the construction efficiency. For second-hand equipment, it is necessary to inspect the wear condition of the power head gears to prevent power loss due to poor meshing.

2. Drill pipe: A key component connecting the power head and the drill bit, it needs to withstand huge torque and axial force. Commonly, there are two types: friction type and mechanical lock type. For second-hand drill pipes, it is necessary to check whether there are cracks at the welds and whether the inner walls have become thinner due to wear.

3. Hydraulic system: Composed of pumps, valves, cylinders, etc., it controls the precision of the entire machine's movements. For second-hand equipment, it is necessary to check whether the hydraulic oil is clear and whether there is any leakage in the pipelines to avoid delayed operation due to aging.

4. Chassis: It bears the weight of the entire machine and is responsible for movement. The degree of wear of the crawler or tire-type chassis directly affects the stability of the equipment. When using a second-hand chassis, it is necessary to check the tightness of the track links or the depth of the tire treads to assess the load-carrying capacity.

5. Luffing mechanism: It controls the lifting and luffing of the drill mast and is composed of the boom, cylinder, etc., determining the range of the drilling operation. For second-hand equipment, it is necessary to check the wear of the pin shafts at the connection points to prevent the operation from shaking due to excessive clearance.

6. Control system: It includes operation handles, instrument panels and sensors to regulate the operating parameters of the equipment. For second-hand equipment, it is necessary to test whether the control system response is sensitive to avoid misoperation due to aging circuits.

These core components together constitute the working system of the rotary drilling rig. Any problem with any one of them will affect the overall performance. When evaluating second-hand equipment, it is necessary to check the wear, maintenance and replacement conditions of each component one by one in order to accurately determine the actual working condition and remaining service life of the equipment.