SU1545983A1 - Device for separating soil clods from root and tuber crops and tomatoes - Google Patents

Abstract

The invention relates to agricultural machinery, in particular, to devices for separating soil clods from the fruits of tomatoes. The aim of the invention is to improve the quality of the separation. The device contains a carrier inclined conveyor 1 with fingers 3. A separating belt conveyor 2 is installed above the conveyor 1, having two sections of the working surface. The receiving section is directed parallel to the end edge of the carrier conveyor 1. The exit section is located obliquely to the receiving section and the front edge of the conveyor 1. At the beginning of the process, transversely located blades 4 are fixed along the end edge of the conveyor 1. Fingers 3 are made with a lower height and rigidity than the blades 4 The blades 4 consist of a series of elastic rods. During operation of the device, the processed mixture falls into the cells between the blades 4 and rolls up to the contact with the belt of the separation conveyor 2. Round objects are output from the receiver to the inclined section and then to the bunker 7. Soil lumps and stones are fixed by the weight by the initial surface of the conveyor 1 and carried to hopper 8. 1 c.p. f-ly, 2 ill.

Description

The invention relates to agricultural machinery, in particular to devices for separating impurities from root crops and tomatoes.

The purpose of the invention is to improve the quality of separation.

In FIG. 1 shows a device for separating soil lumps from root crops and tomatoes, side view; in FIG. 2 is a view A in FIG. 1.

The device includes a carrier conveyor 1 having an inclination in the direction perpendicular to the movement of its web, and a separating belt conveyor 2 mounted above the carrier conveyor 1 is normal to its surface. The carrier conveyor 1 has a surface in the form of transversely placed fingers 3. At the end edge of the mass supply side, an edge of short blades 4 is formed, while the elastic blades 4 have a greater height and stiffness in comparison with the fingers 3. The spacing of the blades 4 and their elevation above the fingers 3 are selected from the condition of piece placement of fruits in the inter-blade compartments.

The separation conveyor 2 is made of two sections: the receiving, located parallel to the end of the carrier conveyor 1, and the output, inclined at a given angle to the end of the separation conveyor.

The supply of the mixture is carried out by means of the loading conveyor 5 and the guide screen 6. The collection of fruits and impurities is carried out respectively in the bins 7 and 8.

The device operates as follows.

The processed mixture supplied by the loading conveyor 5 when it encounters the surface of the carrier conveyor 1 sinks into the cells between its blades 4 and rolls down to touch the belt of the separation conveyor 2 in its receiving part, which is parallel to the end of the conveyor 1, losing its original speed. When bouncing off the tape, the components move upward along the peculiar channels formed by the blades 4, separated from each other and, depending on the state of their shape and mass, occupy different initial positions on the finger surface of the conveyor 1. Rounded objects mostly roll down to the stop in the separation tape element 2 and at the same time contact with the blades 4 are derived from the receiving part. Soil lumps and heavy stones, which have large friction coefficients of rolling and sliding, as well as due to microroughnesses of the surface and deformation of the fingers 3, under the influence of mass are fixed on the palmate surface of the conveyor 1 and carried to the hopper 8. The fruits, when switching to inclined the section rolls down and with the simultaneous action of conveyors 1 and 2 are carried out into the hopper 7. For better dispersal of the heap in the receiving part of the transporter 1, the blades 4 have greater rigidity and height than the fingers 3.

Claims (2)

Claim 1. A device for separating soil lumps from root crops and tomatoes, containing a carrier conveyor mounted on the frame, inclined in a plane perpendicular to the direction of movement of its canvas, and a separation belt conveyor mounted by the ends of the shafts perpendicular to the surface of the carrier conveyor, characterized in that, in order to increase separation quality, the working surface of the carrier conveyor is finger-shaped, and on the loading side, on the part of this surface across the width of the conveyor between the pallet Tsami installed transversely extending blade made greater height and rigidity than the fingers, the separating belt has two portions of the working surface, one of which - the receiver - is parallel to the longitudinal axis of the carrier transporter and the other - output - is at an angle to the receiving portion. 2. The device according to π. 1, characterized in that the blades of the carrier conveyor are made in the form of a series of elastic rods.