RU195822U1 - MACHINE FOR PREPARING SOIL FOR POTATO COMBINE HARVESTING - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular to machines for preparing the arable horizon of the soil for harvesting potatoes. The machine for preparing the soil for harvesting potatoes includes a frame with supporting rollers mounted on it, on which a digging working body, rod elevators, a transverse reversible conveyor, and a crushing device are fixed. The lump-breaking device consists of a beater drum with beaters placed on it, made with the possibility of changing the angle of throwing the soil lump onto the screen, pivotally mounted on one side of the machine frame and located directly behind the beater drum. EFFECT: increased efficiency of crumbling of lumps of soil moving along the elevator of the machine. 1 ill.

Description

The utility model relates to agricultural engineering, in particular, to machines for preparing the arable soil horizon for harvesting potatoes.

A known machine for preparing the field for planting and harvesting potatoes, the crushing device of which has on the shaft sections of discs with knives fixed to them [1].

The disadvantage of this device is the low efficiency of grinding and crumbling soil.

Of the known technical solutions, the closest in technical essence is a machine for soil preparation and combine harvesting of potatoes, consisting of a frame, supporting-copy rollers, a digging tool, bar elevators and a cross conveyor [2]. At the same time, it is equipped with a lump-breaking device made in the form of two sections symmetrically and mirrored on the shaft relative to the longitudinal axis of the machine. Each section consists of parallel disks installed at an angle to the axis of rotation of the shaft; knives are pivotally mounted on each disk. The distance between the blades of the blades of adjacent discs is equal to 1.5 distances between the bars of the elevator. The ratio between the length of the knife and the distance from the axis of rotation of the shaft to the axis of the hinge of the knife is in the range of 2.3-2.5. The destructive device is installed with the possibility of height adjustment.

The disadvantage of this technical solution is the low efficiency of crumbling lumps of soil due to the fact that the knives of the lumping device during contact with the lumps of soil only partially destroy them, and partially shift them in the direction of movement.

The purpose of this device is to increase the efficiency of crumbling lumps of soil moving along the elevator of the machine.

This goal is achieved in that the lump-breaking device, consisting of a beater drum with beaters placed on it, is configured to change the angle of throwing the lump of soil onto the screen pivotally mounted on one side of the machine frame and located directly behind the beater drum.

The implementation of the machine for preparing the soil for harvesting potatoes with lump-breaking device of the proposed design ensures the destruction of lumps of soil moving along the elevator into fractions.

The figure schematically shows a machine for preparing soil for harvesting potatoes with a lump-breaking device of the proposed design, which contains:

1 - frame;

2 - backup copy rollers;

3 - digging working body;

4 - bar elevator;

5 - beater drum;

6 - beater;

7 - screen;

8 - transverse reversible conveyor.

The machine for preparing the soil for harvesting potatoes consists of a frame 1, with supporting-copying rollers 2 placed on it, digging working body 3, bar elevators 4, a transverse reverse conveyor 8 and a linting device consisting of a beater drum 5, placed on it on beaters. Directly behind the drum 5 is a screen 6 mounted pivotally attached to one side on the frame 1 of the machine.

The machine operates to prepare the soil for harvesting potatoes as follows.

When the machine is moving, a digging working body 3, mounted on a frame 1 connected to the supporting-rollers 2, cuts the soil layer and transfers it to the elevator 4. When the beater drum 5 rotates, the beater 6 comes in contact with soil lumps moving along the bar elevator 4 . There is a pass, wherein lumps partially destroyed and partially discarded on the screen 8. The larger soil fractions unbroken lumps have less velocity (ν _1> ν _2> ν ₃₎ and therefore, the feed angle α relative to the vertical plane than for fines. Therefore, the angle α in the vertical plane - during the operation of the machine - can be changed depending on the properties of the soil (moisture, hardness, density, etc.).

Conducted laboratory studies of a prototype machine for soil preparation and combine harvesting potatoes with the proposed design lump-breaking device showed its higher efficiency compared with the known technical solutions.

Sources of information:

1. A.S. USSR, No. 697072, MKI ³ А01В 43/00, 1979

2. A.S. No. 1426483. MKI ³ A01B 49/02. Machine for preparing a field for planting and harvesting potatoes / Petrov GD, Sorokin A.A., Alferov G.S., Gadzhiev P.I., Kim G.D., Makhlin B.E. - No. 4232394 / 30-15; Stated March 23, 87; Publ. 09/30/88; Bull. Number 36

Claims (1)

A machine for preparing the soil for harvesting potatoes, including a frame with supporting copy rollers placed on it, on which a digging tool, rod elevators, transverse reversible conveyor, lump-breaking device are mounted, characterized in that the lump-breaking device consisting of a beater drum with placed on it by beaters, made with the possibility of changing the angle of throwing the soil lump onto the screen pivotally mounted on one side of the machine frame and located directly behind iternym drum.

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