The hydraulic system of the hydraulic tongs has a rated flow rate of 114 liters per minute and a maximum pressure of 16.3 megapascals. When combined with a 40 kW electric drive motor, it achieves efficient and stable power output.

Hydraulic tongs are suitable for the operation of lifting and unloading drill pipe joint threads, square drill pipes, and drill collars during drilling operations, and can be used for swinging drill pipes by adjusting equipment alignment.

Debugging of hydraulic pliers

The leveling of the hydraulic tong and the adjustment of the tong head speed and torque are necessary steps to ensure the normal operation of the hydraulic tong, and precise adjustments should be made according to the specific situation. Uneven pliers can cause slipping or even damage. By rotating the spiral rod on the suspension rod, the position of the lifting wire rope can be adjusted to achieve the leveling of the pliers. Subsequently, using the method of adjusting the suspension rod and screw, the clamp head is tightly attached to the construction female joint and the screws of the upper and lower plugs. Usually, it is required that the upper plane of the clamp head be level with the plane of the turntable.

To operate hydraulic tongs, it is necessary to sequentially start the pneumatic and hydraulic systems, adjust the positioning handle, and accurately feed the tongs to achieve the operation of loading and unloading the drilling tools. Firstly, open the air valve of the pliers to ensure smooth ventilation. Next, start the hydraulic system, open the handwheel adjustment switch on the axial piston pump, and close the one-way air valve to start the oil pump running without load. Subsequently, fasten or unfasten as needed, and rotate the two positioning handles on the pliers head to the corresponding positions.

Ensuring accurate matching of each component and precise execution of operation steps is key to avoiding equipment damage and operational accidents, especially during the positioning and transfer process of the upper and lower clamps.

Slipping of upper and lower clamps and faults in the pneumatic or hydraulic system are common problems that require targeted treatment based on specific causes to ensure the stability and lifespan of the equipment. The reasons for slipping of the upper or lower pliers may include: severe wear of the pliers teeth, leading to baldness; Unclean jaw cavity, affecting use, etc. The handling methods include replacing the pliers with new ones and thoroughly removing any stolen items. At the same time, hydraulic system failures such as low oil level in the tank and high hydraulic oil viscosity also need to be adjusted and repaired in a timely manner. When encountering these situations, it is necessary to carefully inspect and adjust the equipment to ensure its stability and service life.