SU63738A1 - Device for stripping the heads of beet roots - Google Patents

Description

The invention relates to a device mounted on machines for harvesting beets and intended for cutting off the heads of the roots and the subsequent lateral stripping of the tops of the roots.

Devices of the same designation are known, wherein the roots after the top-lifting apparatus and the guide device come to the blade at the periphery of the circular knife for cutting heads, and then into the gap between the central rotating drum and the arc guide that surrounds it. The drum 1 of the guide is located under the skin coaxially with it and provides an inclined arrangement of the roots to the axis of the knife and their rotation around this axis and near its own axes. When the roots move around the axis of the knife, lateral cleaning of their tops takes place, for which the end surface of the knife, against which the tops of obliquely positioned roots are pressed, is provided (with tools.

The disadvantage of these devices is that they lack the side root trimming value regulator.

In the device according to the invention, this disadvantage is eliminated by the fact that after a certain value

The trimming of the tops is automatically stopped, although the roots continue to move under the knife and are affected by its end blades. This is achieved by the fact that the fixed direction of the Mosquito is provided with a conical stop coaxially located on the outer side of it and forming an obtuse dihedral angle with the blade disk, the edge of which is outside the circumference described by the outer ends of the end blades of the disc knife.

In FIG. 1 schematically depicts a side view of a portion of the machine with a device according to the invention; FIG. 2 - the same part of the machine in the plan; FIG. 3 is a sectional view of an apparatus according to the invention; FIG. 4 shows a section through a part of a circular knife.

The roots extracted from the soil by a top-lifting machine are fed into a cutting device of a preliminary flat pruning, which levels the roots in height, centers them and cuts the tops with a rotating disc knife 1. A rotary pneumatic drum 2, which is placed under the circular blade, is installed with a coaxial disc. A fixed pneumatic guide 3 surrounds the drum 2. The root, falling between the ba-. The roller and the fixed guide 3 roll along this guide rotating on its axis. On the periphery of the circular knife, there are windows 4 with a cutting face 5, which perform lateral cleaning of the roots when the latter pass in the gap between the drum of the 2nd guideline 3. On the fixed guideline 3, a conical stop b is mounted coaxially with it, which forms with the blade disk 1 obtuse dihedral angle at. The angle y between the disc is leather and the anvil 6 corresponds to the optimum angle for stripping the side chamfers of the roots. The centering of the root between the knife and the stop ensures the placement of the drum 2 and the guide 3 shown in the diagram. The size of the trimmed mass is limited, regardless of the size of the crown of the root, to the blind angle It, which is formed by the stop 6, the blade of the knife 1 and the base, conventionally indicated in the drawing by the line 7 and separating the cutting zone from the tops of the angle y. Roots, in which the diameter of the flat pre-cut is larger than 7, are pimpled to the cutting zone, which removes the side chamfer until the value of the flat cut is less than 7; after that the top of the root gets into the dead corner and side

pruning is stopped. This makes it possible to perform a pruning operation with minimal sugar losses.

Subject invention

1. A device for stripping the heads of beet roots containing a coaxially mounted flat rotating disk with knives on its end surface, a centrally located rotating drum and a fixed arc covering it, together with the drum telling the roots entering the gap between them, rotation about their own oceii with simultaneous rotation of the latter about a common axis and setting the axis of the roots at an angle to this common axis, about tl and ch yu it so that, with the purpose of limiting the magnitude Stripping the heads of the fixed motion arc guide 3 is provided with a conical stop 6, which forms a dihedral angle at the intersection with the knife disk 1 whose edge is located behind the blade blades at a distance from the foot.

2. The form of the device implementation by n. 1, characterized in that the knives are not formed by the edges of the holes cut in the body of the disk 1.

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FIG. four