Screw for ground drilling: manufacturing

Screw for drilling the earth may be needed in those cases when there is a need to delve into soft soils. The tool for this can be made independently. The maximum depth of the trunk is 20 m.

Design features

One part of this design is a drill pipe, the length of which can be increased when buried. One of the most important elements is the handle, with which you can rotate the tube yourself or with the help of a second person. If you decide to make a screw to drill the earth, it is important to equip it with a working part that can be performed in several ways. It is important to prepare a fairly thick metal, as well as welding equipment.

Manufacture of a spiral type drill

If you decide to make an auger yourself to drill the earth, then you can make it in the form of a spiral design. In the basis there will be a metal rod, at which the end is sharpened. Two knives should be welded to the point with a tip so that their edges are removed from the base by 200 millimeters. To perform work on the formation of knives, you should prepare 1/2 part of the steel disc, the thickness of which can vary from 100 to 150 millimeters. Making a screw to drill the earth, it is important to weld the knives to the steel rod in such a way that the elements are located under a slight slope, the value of the latter should be 20 degrees to the horizontal surface.

The halves of the metal disc must be opposite each other. In the end, the angle between the fixed knives should be 40 degrees. The lower edges of the working elements of such a drill must be sharpened well before use. On how sharp the knives will be, the lightness and speed of the tool's entry into the soil will depend. If we compare this device with the industrial model, then it can be noted that the last band was initially heated to the required temperature, and then twisted into a spiral. The distance between the turns is equal to their diameter. Once the steel is twisted, it is hardened.

Features of making a drill under the water

If you decide to make a screw to drill the earth, the photo of this tool is recommended to be considered even before the beginning of the work. This will allow us to understand what design features a tool has. To make the handle, you can use a pipe, which is based on metal. The cross section of this blank should be three centimeters, but no more. If such a pipe is not available, wood can be used to make the handle. The drill can also be made of steel strip. At the rear end of the strip, it is necessary to form a hole for the handle, while a tip in the form of a loop is fixed at the working end. At the moment of rotation of the drill in the soil, the tip absorbs a certain amount of soil, which is then removed with the tool on the surface. At the next stage, the entire procedure is repeated. A well of the required depth will be obtained by joining several strips and rotating the structure.

Manufacturing technology

A screw for drilling 50 mm of earth will be obtained if you use a steel strip, the length of which is 0.5 meters. Its width can be chosen independently, using the limit of 5 to 10 cm. For the tool, steel thickness of 1 cm can be used. From the end of the strip it is necessary to retreat 8 cm, and then make a hole in the form of a gap. The size of the latter should be 150x2 millimeters.

When a screw is made for ground drilling, the rear end of the drill must be bent in such a way that a ring is obtained to install the handle in the form of a lever. At the working end, the steel strip on the sides should be unbent in opposite directions to form an oval. In the tip area, the metal strip must be cut off to form a point. It should be sharpened, and the sides bend in the opposite direction. In the ring on the back of the instrument is inserted a handle, which gives the screw a rotational motion. With the help of such equipment it will be possible to easily perform a well not only in sandy soil, but also in loams, in which there are inclusions of gravel.

Manufacture of spoon type auger

If you decide to make a screw to drill the earth with your own hands, then a spoonful version of the tool can lie at the base of the design. The device will look like a cylinder made of metal. On the equipment you need to make a slot that has a spiral or longitudinal shape. The working tip of the device should be a ladle made of metal sheet. Among other things, this part can be formed from a longitudinally cut tube blank. The process of rotation of the screw will destroy and absorb the soil with the help of the tip and slits that are located in the cylinder. In order to improve penetration, a drill bit must be welded to the lower part for a metal of considerable diameter.

Conclusion

The axis of rotation and the axis of the drill of the whole structure must coincide, while the cylinder with cutting edges should be displaced relative to the axis of the device by 1.5 cm. Ultimately, the cylinder will move with eccentricity and cut the soil from the walls of the well, forming a well of a more impressive diameter to Compared with the auger itself.