What is the structure of horizontal directional drilling?

The horizontal directional drilling rig pump station is mainly composed of motors, oil pumps, oil tanks, overflow valves, fine oil filters, coolers and bases. The pump station drives the oil pump to rotate through the electric motor, converts electric energy into hydraulic energy (pressure oil), and then distributes the pressure oil to the hydraulic actuator through the control valve group on the console to realize various functions of the drilling rig. The column frame is anchored between the roadway or the roof and the floor of the drill field, and plays the role of supporting and installing the frame and the power head. Due to the use of the inner injection type single hydraulic prop, the overall anchoring force of the post frame is improved, and the stability of the drilling rig is increased.

The multi-way reversing valve group of horizontal directional drilling rig is composed of 3 valve plates, which respectively control the rotation of the motor, the rapid advance and retreat and normal advance and retreat of the propulsion cylinder, and the hydraulic clamp. There is a diverter valve inside the valve group, which divides the pressure oil into three paths, one path passes through the rotating valve plate to the hydraulic motor; one path passes through the normal advance and retreat valve plate to the propulsion cylinder; the other path leads to the hydraulic clamp. Throttle valve (fine adjustment) to adjust the propulsion speed. The fast forward and backward valve plate can combine the large flow pressure oil of the rotating oil circuit into the propulsion cylinder to realize rapid forward and backward.

The power head is mainly composed of hydraulic motor, reduction box, hydraulic chuck, water braid and so on. Its function is to convert hydraulic energy into mechanical energy, thereby driving the drilling tool to rotate and cut coal and rock. The role of the braid is to transmit power and water (or compressed air) to the drill pipe for slag removal and cooling of the drill bit. The frame is mainly composed of frame body, propulsion cylinder, carriage, gripper and so on. The power head is fixed on the carriage, and its function is to convert the hydraulic energy into the mechanical energy of the reciprocating motion of the oil cylinder, and drive the power head on the carriage to reciprocate along the guide rail. The gripper is hydraulic type and is used for loading and unloading drill pipes.

The console is mainly composed of console, multi-way reversing valve group, throttle valve (fine adjustment), quick advance and retreat valve plate, pressure gauge, rubber hose joint and so on. The multi-way reversing valve group is composed of 3 valve pieces, which respectively control the rotation of the motor, the rapid advance and retreat and normal advance and retreat of the propulsion cylinder, and the hydraulic clamp.