RU1774833C - Working tool for soil looserier - Google Patents

Abstract

Usage: loosening pochoy device, including inclined cutting racks, interconnected by a share. SUMMARY OF THE INVENTION: the working body of the soil cultivator has an I-bar with upper straight and lower curved sections, the knife strut is turned in one direction. 2 ill.

Description

The invention relates to agricultural machinery, in particular to soil cultivators.

Soil cultivators are known, including inclined cutting racks connected by a ploughshare.

However, such rippers have a small working width, and with an increase in the number of racks and steps, the mass and energy intensity increase significantly.

Known soil cultivators containing a cutting knife and racks pivotally connected to it, mounted with the possibility of rotation in the transverse vertical plane and changing the angle of attack.

Providing the necessary working width and loosening quality, these devices are complex and have low reliability due to the presence of articulated joints working directly in the soil. In addition, the possibilities of loosening the soil to a greater depth are limited.

A soil cultivator is also known, including V-shaped racks with a support and side knives,

This device has a simple design, but its disadvantage is the lack of tillage between adjacent racks when loosening to a greater depth, since the soil is pressed by horizontal shares that are attached to the side racks due to the fact that the cutting force does not reach the free surface.

Known working bodies of the soil cultivator with uprights made in the form of a part of a circular arc with the direction of the convexity of the uprights outward and inward.

However, during operation, these working bodies leave a certain area without treatment (see Fig. 3),

 In addition, under certain conditions, the quality of loosening will decrease, since the reactions R from the action of the racks on the soil are directed towards each other or in opposite directions, while

(L

X XI

4 00

(with

GO

proposed, these reactions are directed in one direction.

The purpose of the invention is to improve the quality of cultivation and reduce energy consumption.

This goal is achieved in that in the soil cultivator, including knife posts tilted relative to each other, connected at the bottom with a share to form a variable angle of attack, the posts are made curved in the form of a part of a circular arc, attached to the share asymmetrically relative to each other, with one rack attached to a convex surface outward and the other inward to form a V-shaped cutting perimeter with a gradually increasing angle of attack and the distance between the uprights from the bottom of the cultivator To the top.

In FIG. 1 shows the proposed working body of the soil cultivator, general view; in FIG. 2 - the same section AA.

The working body of the soil cultivator is as follows. On the ploughshare 1, curved knife posts 2, 3 are fixed, inclined and asymmetrically mounted relative to each other. The curved surfaces of the uprights 2 and 3 are made in the form of a part of the circular arc, which gradually increases the angle of attack and the distance between the adjacent uprights relative to the vertical. Racks 2 and 3 are made with one-sided internal sharpening (section AA) of the same height. Using the vertical posts 4 and the cross member 5, the working body forms a closed structure.

When working, the working body of the cultivator with knife stands 2 and 3, ploughshare 1 separates the soil from the array, raises towards the open surface and loosens. Racks 2 and 3 provide additional soil lifting and crumbling during rotational movement relative to

a stand attached to the ploughshare with a convex part inside the cutting perimeter, preventing soil compaction in the lower part of the loosened zone.

Thanks to the asymmetric installation

racks and increasing the angle of attack of their surface increases the lifting force towards the open surface. An additional rotational speed is communicated to the soil particles. All this improves the quality of loosening due to fracturing and reduces energy consumption.

Claims (1)

SUMMARY OF THE INVENTION A working body of a soil cultivator comprising racks-knives and installed between them in the lower part of the ploughshare, while the racks-knives have upper straight and lower curved sections, and the angle of attack and the distance between the racks made increasing from the bottom of the ripper to the top, characterized in that, in order to improve the quality of loosening and to reduce the energy intensity of the work, the curvature of the knife racks is turned in one direction. 4-4 FIG. g