RU171854U1 - WORKING BODY OF THE SOIL PROCESSING MILL WITH VERTICAL AXIS OF ROTATION - Google Patents

Abstract

The utility model relates to the field of agricultural engineering, in particular to tillage cutters with a vertical (steeply inclined) axis of rotation. The technical result of the model is to reduce the energy consumption of the soil cultivation process. The technical result is achieved due to the fact that the stand is made in the form of a cylinder and a truncated cone, and cutting the edges of the blades are in the form of a cycloid and the working width of the inner blade is 0.85 of the working width of the external blade. their way. With the translational movement of the cutter, the rotor together with the working bodies performs plane-parallel motion. Cutting blades 2 and racks 1 enter the soil at a given depth of processing and intensively crush it. As a result of the fact that the cross section of the strut 1 is made in accordance with FIG. 2, and the cutting blades 2 in accordance with FIG. 3, and the inner blade is 0.85 of the working width of the outer blade, the soil is treated with minimal energy.

Description

The utility model relates to the field of agricultural engineering, in particular to tillage cutters with a vertical (steeply inclined) axis of rotation.

Known active working body of a rotary tillage implement containing a rack and two blades (RF patent for utility model No. 150776, class AB 33/06, 2015). The disadvantage of this technical solution is that the cutting edges are made in shape in the form of straight sections, and the cross section of the cutting blade in the form of a wedge, which leads to increased energy consumption when processing the soil.

The closest analogue to the claimed object relates to the working body of a tillage cutter with a vertical axis of rotation, containing a stand and two blades (RF patent for utility model No. 166354, class AB01 33/02, 2016). This technical solution has several disadvantages. In particular, due to the fact that the cross section of the stand is made in the form of a rectangle with a large length, which leads to crushing of the soil of the furrow wall with its lateral surface and the back of the knife stand. This leads to an increase in torque, and hence to an increase in energy consumption for tillage. The technical result of the model is to reduce the energy intensity of the soil cultivation process.

The technical result is achieved due to the fact that the stand is made in the form of a cylinder and a truncated cone (Fig. 2), and the cutting edges of the blades 2 (Fig. 3) in the form of a cycloid and the width of the gripping inner blade is 0.85 of the width of the grip blade of the outer blade. The cycloid equations for the inner blade are

for outer blade

In the parametric form, the cycloid equations are: for the inner blade

x ^ext. = 0.25ϕ-0.25sinϕ,

y ^ext. = 0.25-0.25;

for outer blade

x ^ext. = 0.3ϕ-0.3sinϕ,

y ^ext. = 0.3-0.3cosϕ,

where ϕ is the rotation angle of the roller in the cycloid.

Since in other technical solutions the totality of the distinguishing features of the utility model is not found, then it meets the criterion of "novelty."

The utility model is illustrated by drawings, where in FIG. 1 shows the working body of a tillage cutter with a vertical (steeply inclined) axis of rotation, FIG. 2 - rack working body, in FIG. 3 - cutting blades.

The working body of the cutter consists of a rack 1, cutting blades 2, a washer and a screw. In the cutting blades there is a square hole in which the square of the rack is inserted for hard mounting with the washer and screw.

The working body of the tillage mill works as follows. With the translational movement of the cutter, the rotor together with the working bodies performs plane-parallel motion. Cutting blades 2 and racks 1 enter the soil at a given depth of processing and intensively crush it. As a result of the fact that the cross section of the strut 1 is made in accordance with FIG. 2, and the cutting blades 2 in accordance with FIG. 3, and the inner blade is 0.85 of the working width of the outer blade, the soil is treated with minimal energy.

The source of information:

RF patent for utility model No. 150776, cl. АВВ 33/06, 2015;

RF patent for utility model No. 166354, cl. АВВ 33/02, 2016.

Claims (1)

The working active body of a tillage mill with a vertical axis of rotation, containing a stand and cutting blades, characterized in that the stand is made in the form of a cylinder and a truncated cone, and the cutting edges of the blades are in the form of a cycloid and the working width of the inner blade is 0.85 of the working width of the outer blade .

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