SU874905A1 - Soil drill - Google Patents

Description

(54) SOIL DRILL

I

The invention relates to hand-held earthmoving tools in the field of construction equipment and can be used to form wells in any branch of the national economy associated with the development of soils.

Known soil drill, including the bottom with knives and shtanga (1 |.

The disadvantage of it is mA; that while drilling is being processed.

Closest to the proposed technical entity is a hand-operated bur comprising a body with cutters and a bar with a crank. It consists of two hollow cylinders inserted one into another. The cut-off ground is poured between the cylinders, and the core is lifted by the inner cylinder (2).

However, the known bore does not have a core separation device .;

The purpose of the invention is to increase the efficiency of core separation by limiting the rotation of the body relative to a drilled soil.

This goal is achieved by the fact that the drill casing in its upper part is connected

with a rod through a ribbed impeller.

In addition, the drill casing has the shape of a hollow truncated cone: and the cutters are made co-shaped with a rounded cutting edge protruding on both sides of the lower edge of the casing.

FIG. I depicts the proposed drill, a general view; in fig. 2 is a view A of FIG. 1 A soil auger consists of a body 1 with cutters 2 fixed on it. At the top, a wing-shaped ribbed rotation stop 3 is fixed to the top of the body part, designed to stop and restrict the turning of the cut intact part of the ground relative to the body, as well as to attach to the body of the rod 4

5 with a crank 5. On the bar 4 there are holes for fixing the crank 5 which is freely movable along it in a position suitable for drilling, as well as the depth scale of the well. When rotating or swinging the knob in a plane perpendicular to the longitudinal axis of the rod, with a feed to the side of the developed array, ring milling of the soil occurs and the body is introduced into the array. Destroyed ground

it is transported by incisors inside the housing, and in the central part of the well; 1, the soil remains intact. The process continues in such a way as far as it goes and inserts the intact part of the soil into the ribs of the limiter, after which the connection of the intact soil to the hull is formed, which allows the soil to be separated from the array at the level of incisors with further rotation or loading.

Holding the destroyed and intact soil in the body during the extraction of the latter from the well is provided by the conical shape of the body, the construction of the incisors, and also by compacting the destroyed ground between the wall of the body and intact ground, resulting from the difference in volumes of the annular cavity of the well and the annular conical cavity of the body, which leads to seizure of intact soil in the hull. After the housing is removed from the well from the well, it is emptied by shaking and the cycle is repeated until a well of a given depth is formed.

The reduction of the volume of soil being destroyed due to ring cutting, as well as excavation of the soil from the well without tipping the hull significantly reduces the energy intensity of the formation of the well, facilitates manual labor and increases its productivity. The use of the limiter of rotation of the intact part of the soil as an element for fastening the rod to the body reduces the height of the device.

Due to the fact that the well formation efficiency is about the same as

with a circular rotation of the knob, and with its alternating rocking within a circle, the device provides the ability to work in hard-to-reach places - against walls, supports and other obstacles.

This greatly expands its use.

Presence of holes on the rod for fixing the driver in a convenient position for working at any stage of the process of formation of the well and the depth scale of the well

allows you to significantly improve the ease of implementation and to ensure a given depth of the well without using a measuring tool.

Claims (2)

1. A hand-driven soil drill comprising a body with incisors and a rod with a crank, characterized in that, in order to increase the efficiency of core separation by limiting the rotation of the body, it is connected to the rod by means of a ribbed impeller. 2. A drill according to claim I, characterized in that the casing has the shape of a hollow truncated cone, and the incisors are made co-shaped with a rounded cutting edge protruding on both sides of the lower edge of the casing. Information sources, taken into account in the examination 1. USSR author's certificate number 290092, cl. E 02F5 / 20, 1967. 2. The patent of the USSR No. 19144, cl. E 02 F 5/20, 1929.