What Is an Auger?

Spiral drilling rig is a kind of spiral blade drilling machine. It includes a rig frame. The frame is provided with a slideway. There is also a reduction box that can slide up and down along the slideway. The reduction box is connected to the power input shaft and the power output shaft. The other end is connected to the hydraulic motor, the other end of the power output shaft is connected to the drill pipe, and the lower end of the drill pipe is connected to the drill.

The main components of the auger rig are the mast column of the rig. The column is provided with a slideway and a speed reducer that can slide up and down. The speed reducer is connected to the power input shaft and the power output shaft. The other end of the power input shaft is connected to the hydraulic motor and the other end of the power output shaft. The drill pipe is connected to the lower end of the drill pipe. The up and down movement of the drill rod of the rig is realized by the drive of the reduction gear box, which is more conducive to rapid downward drilling. The reduction gear box can slide up and down along the slide of the rig frame to ensure the verticality of the drilling; the drill rod is a spiral Blade drill rod, soil material can be returned to the ground along the blade when drilling; the power output shaft is a hollow mandrel, and the upper mouth of the mandrel can be connected with concrete pouring equipment for concrete pouring.

The spiral drilling rig is mainly composed of a top pulley block, a power head, an auger, a hydraulic landing gear, a control room, a chassis, a walking mechanism, a turning mechanism, and a hoist.

During the construction of the auger rig, the auger drill is used to drill holes, and the concrete is poured through the central pipe of the drill pipe, which is suitable for the construction of small-diameter cast-in-situ pile foundations for transmission line towers. The drilling and pile forming operations have high efficiency and have the following characteristics:

(1) A long spiral drill is used to form the hole, and the concrete can be injected into the bottom of the hole through the central pipe of the drill pipe. It can be used for drilling and pile formation at one time, and can also be used for various methods such as dry hole formation and grouting replacement.

(2) The power head adopts a three-ring reducer with dual drives and a large center through hole, which has high load and overload capacity, compact structure, low noise and long life.

(3) The pile frame adopts a hydraulic system, which can lift and lower the mast column by itself. The walking, turning, and alignment are accurate and reliable, the construction efficiency is high, and the labor intensity is low.

(4) The pile driver adopts a combination of hauling and shipping, which has strong integrity, convenient site transfer and low cost.

(5) The electrical, hydraulic, control and monitoring instruments of the whole machine are all concentrated in the cab, and the driller's personnel are easy to operate. ^[1]