Host Structure And Working Principle Of Water Well Drilling Rig

1. Chassis Rubber-wheeled chassis. Drag to achieve walking. 2. The frame of the frame welded structure is welded to the chassis. When the sliding frame is erected, it can be connected with the frame by bolts to improve the rigidity of the sliding frame. 3. The sliding frame of the sliding frame adopts hot-rolled carbon channel steel and square steel tube as the guide rail of the rotary head, and the oil cylinder is controlled to rise and fall smoothly through a one-way throttle valve. The level and angle meter on the console control its verticality.

4. The slewing mechanism is composed of a hydraulic motor and a slewing reduction box. Two high-performance, low-speed, high-torque hydraulic motors drive the slewing gearbox to obtain different torques and speeds. 5. Propulsion part The propulsion part is composed of a propulsion cylinder, a steel wire rope, a skateboard, etc. When the piston rod of the propulsion cylinder is extended and retracted, the pulley block is driven, and the sliding plate is slid back and forth on the carriage through the wire rope, thereby completing the forward and backward of the drilling tool. The slide board adopts the insert structure to effectively reduce the wear of the slideway. The axial pressure can be adjusted during deep hole drilling. 6. Rotating centering device The rotating centering device can be divided into two halves. The outer half is hinged and can be unscrewed by hand. It can provide a wide working space above the orifice, and the dust cover makes the working environment clean and clean.

7. The leveling jack is composed of four hydraulic cylinders, which can level the rig quickly, and the hydraulic lock can prevent the jack from creeping. 8. The hoist driven by the auxiliary hoist hydraulic motor can flexibly hoist drilling tools or auxiliary tools within 0.8 tons. 9. The console is composed of a console frame, manual reversing valve, pressure reducing valve, speed regulating valve, oil pressure gauge, various pipelines, engine instruments, throttle cable, flameout cable, damper control, etc. All control functions are concentrated on the console, which is easy to operate, time-saving and labor-saving. The operator can stand on a foot pedal with sufficient area to operate.

10. Hydraulic system The hydraulic system consists of hydraulic oil tanks, hydraulic oil pumps (double pumps), hydraulic motors, hydraulic valves, hard pipes, hoses, oil filters, pressure gauges and other hydraulic components. This system is simple in structure, reliable in function and easy to use. The hydraulic oil is compressed by the oil pump, the system pressure is adjusted by the overflow valve, and the reversing valve controls the running direction of the oil cylinder or the steering of the hydraulic motor to complete various actions required by the drilling rig. The fast forward and fast speed of the drilling tool is completed by the confluence of the double pumps. Retreat and revolve. Adjust the speed control valve, determine the rotation speed, and ensure the rotation speed of the drilling tool during drilling; adjust the advance relief valve, determine the advance pressure, adjust the anti-axis pressure relief valve, determine the anti-axis pressure during advance; advance the pressure and anti-axis When the drilling is started, the anti-axis pressure is adjusted to the minimum, and the thrust axial pressure is slightly larger; as the drilling depth is deeper, the number of drill pipes increases, and the propulsion force is gradually increased. At this time, the anti-axis needs to be increased. pressure, At the same time, reduce the propulsion pressure to ensure that the axial pressure of the impactor is the best value during drilling, so as to ensure reasonable drilling efficiency. The set pressure of the safety valve is higher than the system pressure value.