Working principle of impact water well drilling rig

The vertical reciprocating motion of the drill bit causes it to hit the bottom of the well and damage the rock layer. The structure is simple, but there is no circulating cleaning system, and the disassembly of chips and drilling machines cannot be carried out simultaneously, resulting in low work efficiency. The drilling depth is generally within 250 meters, and some can reach 500 to 600 meters. The main types are as follows.
A simple impact drill that uses the weight of the drill bit itself to impact the formation. The lower end of the drill bit has some foldable pointed flaps.
The wire rope impact drill consists of a top mast and lifting pulley, a wire rope, an impact mechanism, a drill bit (including the drill rod and drill bit), an electric motor, and so on.
There are two types of working principles for composite water well drilling machines: one is to add an impact mechanism on the basis of a rotary rotary drilling machine, with rotary drilling being the main method. When encountering pebble layers, both water well drilling platforms are subjected to impact drilling, and have strong adaptability to each layer of rock; Another type is a water well drilling rig that combines impact and rotation, such as a wind driven downhole hammer drilling rig. The down hole hammer drill used includes a cylinder liner and a piston that moves up and down in the cylinder liner