Hydraulic small screw drill is a spiral blade drilling machine, it is installed on the hydraulic excavator or slip loader, through the hydraulic oil supplied by the main engine, through the drive head hydraulic motor, reducer and other operations, power output to the bottom end of the drill rod, the lower end of the drill rod is welded with spiral spiral blade and special drill bit, spiral down into the soil layer into a circular hole. Because the drill pipe is a spiral blade, the drilling method is a whirlpool advance and retreat, so the name auger.
The hydraulic power of the drilling rig is provided by the hydraulic excavator engine, which belongs to the front-end device of the excavator, also known as the excavator auxiliary equipment. Hydraulic auger kit includes main engine quick link, hydraulic drive head, square mounting link head, auger rod, spiral blade, easy mounting gear holder, auxiliary gear group, main drill teeth. The main engine quick link is equipped with a slide and balance rod, which can make the sagging drill can work quickly in multiple directions and ensure the perpendicularity of the drilling hole. It can flexibly coordinate the operation in contact with the ground and protect the drill pipe.
This small hydraulic auger is simple and fast to install, lightweight body, less restrictive conditions for the power host, and cheap to rent (ordinary small excavator can be used as its power host, unlike large pile drilling machine that must use a special plane). Therefore, in just a few years after its introduction from abroad, it has been widely used in projects of different sizes by Chinese people.
It can be seen that the hydraulic auger can effectively improve the working efficiency. The up and down movement of the drill pipe is realized by driving the reducer with different types of driving devices, which is more conducive to the downward acceleration of rapid drilling; The drill pipe is a spiral blade drill pipe, and the soil material can return to the ground along the blade during drilling. Making the hole size clear and accurate.
