SU906425A1 - Digging device for harvesting root crops - Google Patents

Description

(54) KOPACH FOR CLEANING ROOTS

one

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to root-harvesting machines.

Known disc Kupach convex shape with cherries, it edge for cleaning root crops 1.

However, intensive abrasive wear of the Kopac blade increases the thickness of the cutting edge, reduces the width of the rim and reduces its durability.

The closest technical solution is a scoop for harvesting root crops, including a digging disc fixed on a flat hub with axially convex knitting needles and a flat rim 2 parallel to the hub.

The disadvantage of this Kopach is that Kopach is clogged with soil and plant residues, moreover, it has a low crumbling capacity and the disc durability is low.

The purpose of the invention is to reduce the accumulation of kopach by soil and plant residues, to improve the crumbling of the formation and to increase the durability of the disc.

The goal is achieved by the fact that a V-shaped depression is made coaxially with the spokes on the rim edge, the walls of which are inclined to each other at an angle of 60 °, the area of the windows formed by the spokes is 0.6-0.8 of the convex part of the disk. The rim of the rim is fixed plate of solid alloy, whose thickness is 0.15-0.20 thickness of the rim.

FIG. 1 shows a cops, general view; in fig. 2 shows a section of the Copac A-A in FIG. one; in fig. 3 - Kopach blade.

A root crop for harvesting consists of a digging disc 1 made of ribs 4 that are axially convex mounted on a flat hub 2 axially convex 3, and a blade 7 is made on the outer edge of the rim 3 and spokes 3 form a flat rim 3 and a chamfer 8 , on the edge of the rim 4 fixed plate 9 made of hard alloy. In the hub 2 of the disk 1, a central bore 10 and holes 11 for fastening are made.

In the process of coping with the soil during root harvesting, the V-shaped depressions 5 replacements 1C) t the cutting process by sliding to cutting — by milling the soil, improve its crumbling and cutting of plant residues, reduce the magnitude of the vertical forces, especially when digging into the soil of high density.

The uniform arrangement of windows with a square, made up, is 0.6-0.8 square for the convex part of the disk, promotes good soil separation, prevents sticking of the copacius and reduces the loss of root crops through the windows.

During operation, the hard metal plate 9 wears out more slowly and, stepping forward, ensures the constant sharpness and necessary durability of the blade 7 of the copaca, made at an angle D a soft, carrying layer, wears faster and has a greater thickness along with the face 8, made at an angle i, provides the necessary strength, stable shape and self-sharpening of the Kopach blade.

Doing the kopach in the manner proposed reduces the clogging of the kopach in the soil and plant residues, improves the crumbling of the formation and increases the durability of the disc.

Claims (3)

1. Kopach for harvesting root crops, including fixed on a flat hub digging disc with bulging in the axial the direction of the spokes and flat, parallel to the hub, with the IDA, characterized in that, in order to reduce clogging of the Copac by the soil and plant residues and improve the crumbling of the formation, on the edge of the rim coaxially the spokes are made V-shaped depression, whose walls are inclined to each other at an angle of 60 °. 2. Kopach according to claim 1, characterized in that the area of the windows formed by the spokes is 0.6-0.8 of the area of the convex part disk. 3. Kopach according to claim 1, characterized in that, in order to increase the durability of the disc, a plate made of a hard alloy, the thickness of which is 0.15-0.20 of the rim thickness, is fixed on the rim edge. Sources of information taken into account in the examination 1. Patent of the GDR No. 110411, cl. D 25/04, 1974. 2. USSR author's certificate number 655356, cl. A 01 D 25/04, 1976. Fi.