KQ submersible drilling rig

（1） Main purpose
The KQ submersible drilling rig is a submersible electric rotary drilling rig, which is an ideal drilling machine for bored piles. Suitable for drilling in various formations such as silt, clay, gravel, weathered rock, etc. Widely used in foundation construction of buildings, water conservancy, ports, bridges and other engineering projects.
（2） Drilling rig structure and working principle
The main engine of the KQ submersible drilling rig consists of a submersible motor reducer sealing device, along with supporting equipment such as a drilling frame hoist, distribution box, drill rod, and drill bit. The submersible power device transmits power from the submersible motor to the output shaft through a reducer, driving the drill bit to cut soil. It uses pump lift reverse circulation or positive circulation to discharge drilling slag from the hole through a rubber hose or drill rod.