Working process of drill bit

During the excavation operation, the bit rotates along the vertical axis and moves axially at the same time. The soil is cut under the action of the torque and axial force of the drill bit, and is loosened under the action of the compression and centrifugal force of the working blade, forming the soil flow pressure to the pit wall, and at the same time, it rises and transports to the surface along the page. When the soil flow moves to the barrier without pit wall, due to centrifugal force, the crushed soil is thrown around the pit to complete the excavation process.