RU33682U1 - Tillage working body rotary type - Google Patents

Description

SOIL PROCESSING WORKING BODIES OF ROTARY TYPE.

The technical solution relates to the field of agricultural engineering, in particular to the rotary organs of tillage tools.

A rotary-type tillage working body is known, including an impeller mounted on an inclined axis with a hub, supporting blades fixed with the possibility of fixed rotation around its longitudinal axes, the axis is mounted with the possibility of a fixed change in the angle of its inclination to the horizontal in a longitudinally vertical plane in the direction of movement of the unit up to 30 ° by adjusting mechanism 1.

The disadvantage of this rotary working body is that it forms a wide furrow on the surface of the field and the soil is carried to the field surface.

The closest in technical essence to the proposed technical solution is the working body of a rotary cultivator-cultivator, which includes an impeller mounted on an inclined axis with a st} -pitz, bearing blades of variable cross section, the blades are fixed in the hub with the fixedness of a fixed rotation around their longitudinal axes and are installed at an angle to the inclined axis equal to the angle of inclination of the last 2.

The disadvantage of this working body of the rotary cultivator of the cultivator is the high traction resistance. When processing the soil, the top layer is mixed with the destruction of the stubble and the removal of loose soil to the surface of the field.

The objective of the proposed technical solution is to reduce traction resistance and the formation of a narrow furrow on the field surface without the removal of loose nights on its surface when processing stubble backgrounds.

The problem is solved due to the fact that the soil cultivating working body is of a rotational type, including: an impeller with a hub mounted on an inclined axis, non-inferior blades mounted in the hub at an angle to the inclined axis, the blades are made in the form of a variable pitch screw and are loosely fixed in the hub, the blades are installed in the longitudinal-horizontal plane at an angle P to the inclined axis equal from -60 ° to + 60 °, and in the longitudinal-vertical plane at an angle y to the inclined axis equal from 40 ° to 90 °.

The proposed technical solution is illustrated by drawings, where figure 1 shows a soil cultivating machine; rotary type working body, left view; the figure 2 shows a tillage working body of the rotary type, front view; the figure 3 shows a section aa the tillage working body of the rotary type; the figure 4 depicts an isometry of the tillage working body of the rotary type.

Tillage working body of a rotary type, consists of an impeller with a hub 1 on which blades 2 are rigidly fixed, made in the form of a screw of variable pitch and installed in the longitudinal-horizontal plane at an angle p to the inclined axis, equal from -60 ° to + 60 °, and in the longitudinal-vertical plane at an angle y to the inclined axis, equal from 40 ° to 90 °. The impeller with the hub 1 is mounted for rotation on an inclined axis 3. As a means of attachment to the frame of a rotary cultivating working body, a rack 4 is used.

Tillage working body rotational type works as follows. When the unit moves along the field, the impeller with the hub rotates from the interaction of the blades with the soil. The blades cut into the soil layer, and a narrow discontinuous furrow forms on the soil surface, with a maximum depth in the center and a minimum at the entrance and exit of the blades to the surface.

The blades are fixed in the hub at an angle P (Fig. 3), formed between the plane of the base of the blade and the inclined axis, from -60 ° to + 60 ° depending on the type of soil. At values of the angle | 3 less than -60 ° and more than + 60 °, the soil is unloaded with the formation of a wide furrow on the surface of the field. If the angle is positive, the impeller rotates clockwise, and if it is negative, it rotates counterclockwise. The angle у is 40 ° -90 ° and varies depending on the installation angle of the inclined axis and on the type of soil. At an angle of greater than 90 °, a deepening force appears, pushing the impeller to the surface. When the angle is less than 40 °, the impeller is clogged with plant residues, which leads to an increase in traction resistance.

The implementation of the blades in the form of a screw of variable pitch will ensure the formation of a narrow intermittent groove on the surface of the field in the form of a trace of helical lines. The width of the furrow is equal to the thickness of the blade plus 1 - 3 centimeters, depending on the type and condition of the soil. The removal of loose soil by the blades to the floor surface is less by 75-80%. More than 80% of the stubble remains on the soil surface, which will significantly improve the tillage in accordance with agricultural requirements. Traction resistance will decrease by 7%.

A prototype of a rotary-type soil-cultivating working body passed tests on the soil canal in the laboratory of the Omsk State Agrarian University, as well as in a machine-testing station.

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Claims (2)

1. Tillage working body of a rotary type, including an impeller with a hub mounted on an inclined axis, bearing blades installed in the hub at an angle to the inclined axis, characterized in that the blades are made in the form of a variable pitch screw and are rigidly fixed in the hub. 2. The rotary tillage working body according to claim 1, characterized in that the blades are mounted in a longitudinally horizontal plane at an angle β to an inclined axis equal from -60 ° to + 60 °, and in a longitudinally vertical plane at an angle γ to an inclined axis equal to 40 to 90 °.