RU1806524C - Machine for topping root crops in field - Google Patents

Abstract

Usage: in the field of agricultural engineering. SUMMARY OF THE INVENTION: on each elastic beater 3 and 4, equidistant from the transverse axis 04), holes 5 and 6 are made, which are offset to one side from the longitudinal axis C-C, with the working ends forming an obtuse angle a between themselves. 3 ill.

Description

The invention relates to the field of agricultural engineering, in particular to root crop cleaners for root crops used in beet harvesting machines.

The purpose of the invention is the provision of high-quality cleaning of root heads and reduction of material consumption.

On the. FIG. 1 shows a head cleaner of root crops from tops on the vine; FIG. 2 is a section AA in FIG. 1; in Fig.Z is an enlarged image of the cleaning end of the elastic beads.

The cleaner contains a horizontal shaft 1, on which cleaning elements are made through two fixing plates 2, made in the form of two elastic strips 3 and 4 and installed in the form of a two-way spiral. On each elastic beat, equidistant from the transverse axis 0-0, holes 5 and 6 are made, which are also offset to one side from the longitudinal axis CC, and the working ends of the beats form an obtuse angle a between themselves (see Fig. 1). Thus, the elastic elements form a working surface close to the configuration of the surface of the root head, which contributes to better cleaning of the heads of root crops from tops. The angle a is formed by sagging of beats 3 and 4 under the action of the center of gravity and their subsequent fixation.

The cleaner works as follows.

In operation, the shaft 1 rotates, which leads to the elastic elements 3 and 4 cleaning the heads of root crops from the tops and the inter-area.

When the working surface of the elastic elements is worn, the latter are rearranged by the worn surface to the shaft and secured by holes 6.

And during the work, the wear of the working surface of the beat should not exceed the value h1 h - d (cm, Fig. H), where p is the critical wear zone of the edge of the beat; h is the distance from the end of the beat to the center of the mounting hole; d is the diameter of the mounting

holes. In this case, the distance from the edge of the hole to the worn end of the beater is equal to half the diameter d of the mounting hole, which is sufficient to secure the beat

through hole 6.

In this fastening scheme, when the beats are inclined to the shaft surface at an angle equal to (180 ° - a) / 2, the center of the hole 6 approaches the axis of the horizontal shaft by D. In comparison with the case when the beater is attached perpendicular to the shaft axis , the approximation value A is determined from the condition

A h / cos "/ 2 -h 1

 h

cos a / 2

- 1

Such an approximation will increase the critical wear zone, which leads to an increase in the durability of the cleaner. Compared with the prototype, the claimed cleaner has the following advantages:

more rational consumption of elastic material;

the contact area of the elastic beaters with the heads of root crops is increased;

partial copying of the heads of root crops occurs.

Claims (1)

The claims 4 The root head cleaner from the tops of the root, containing a horizontal shaft, onto which elastic cleaning bits installed in the form of a two-way spiral are paired with plates, characterized in that, in order to improve the quality of cleaning the root heads surfaces and reduce the material consumption on each elastic beat holes are made equidistant from the transverse axis, which are offset to one side from the longitudinal axis, and the working ends of the beats form an obtuse angle between them. Ah-ah FIG. 2