RU195467U1 - ROOT CLEANER FOR SOIL - Google Patents

Abstract

The utility model relates to agricultural machinery, in particular to root crops from the soil. The root crops cleaner contains mounted cylindrical rollers mounted on the frame with the possibility of rotation in one direction. Rollers are interconnected by asterisks. Asterisks of even and odd rollers are installed outside the frame from its different sides with the possibility of rotation of the even and odd rollers with different frequencies. On the surface of the rollers in a spiral, collars are made having a wave-shaped cross section. On even and odd rollers, the spiral winding direction is made with different steps and directed in opposite directions. The quality of root crops cleaning from the soil is improved.

Description

The utility model relates to agricultural machinery, in particular to root crops from the soil.

Known roller screw cleaner of potato tubers from the soil (Aut. St. SU No. 1306508, Publ. 30.04.87, Bull. No. 16), containing a cylindrical body fixed to the shaft with a screw winding covering it, characterized in that, in order to reduce damage of tubers, a sleeve is fixed to the body with flat blades evenly spaced around its circumference, forming cavities isolated from each other, and screw winding is installed with an interference fit at the ends of these blades. The rollers are made to rotate in one direction by means of interconnected sprockets.

The known device has the disadvantage of low quality cleaning root crops from the soil.

The technical result achieved by using the utility model is to improve the quality of cleaning root crops from the soil.

The specified technical result is achieved by the fact that on the surface of the rollers, spirals are made that have a wave-shaped cross section, the spirals are made with a variable winding pitch, and on even and odd rollers, the spirals are sent in opposite directions.

In FIG. 1 shows a general view of the cleaner, and FIG. 2 is the same side view, in FIG. 3 - cross section of the drum (enlarged).

The root crop cleaner from the soil includes mounted on the frame 1 with the possibility of rotation in one direction rollers 2 of a cylindrical shape. Rollers 2 are interconnected by sprockets 3 through chain 4. Sprockets 3 of even and odd rollers 2 are mounted outside of frame 1 from different sides with the possibility of rotation of even and odd rollers with different frequencies from drive 5. To enable rotation of sprockets of even and odd rollers with different frequency, the drive 5 is equipped with a shaft 6 with sprockets 7 and 8 mounted on its opposite ends with a different number of teeth. On the surface of the rollers 2, beams 9 are made in a spiral, having a wave-like shape in cross section, while the spirals are made with a variable winding pitch. On even and odd rollers 2, the direction of spiral winding is made in opposite directions.

Purifier root crops from the soil works as follows. Drive 5 is turned on, which transmits torque through shaft 6 to sprockets 7 and 8 rotating in one direction, which, in turn, drive sprockets 3 on even and odd rollers, respectively, with different frequencies. Then the root crops, untreated from the soil, are fed to the rollers 2. Interacting with the rotating surface of the rollers 2, the root crops progressively move in the direction of rotation of the rollers. Moving along the rollers 2, the root crops come into contact with the even and odd rollers 2, rotating with different frequencies, which creates the conditions for the surface of the rollers to slip along the root crops. The flanges 9 located on the surface of the rollers 2 in a spiral, having a wave-like shape in cross section, as well as the execution of spirals with a variable winding pitch, give root crops an additional rotational movement in another plane, increasing the quality of root crops cleaning from the soil. Winding on even and odd rollers of 2 spirals, made with a variable pitch and directed in opposite directions, causes a lateral displacement of root crops when they move along rollers 2, further increasing the quality of root crops cleaning from soil. The soil separated from the root crops is removed into the gaps between the rollers 2. The cleaned root crops, depending on the degree of contamination and purpose, are subsequently transferred from the cleaner to a sink or to further sorting and processing. The placement of stars of even and odd rollers outside the frame 1 from different sides with the possibility of rotation of the even and odd rollers in one direction, but with different frequencies, allows to increase the turnover of root crops when they move on rollers 2. When the root crops move from odd roller 2 to even for different rotation speeds of the rollers 2, the presence on the rollers 2 of the spiral beams 9 arranged in a cross-section in a wavy shape, as well as the execution on the even and odd rollers 2 of the spiral winding direction in false side variable pitch increases the turnover of root crops around its axis. This increases the contact surface of the product to be cleaned with the surface of the rollers 2, thereby improving the quality of separation of soil particles from root crops.

Claims (1)

A root crop cleaner from the soil, comprising cylindrical rollers mounted on the frame with the possibility of rotation in one direction, connected by sprockets, the even and odd rollers sprockets mounted outside the frame from different sides with the possibility of rotating even and odd rollers with different frequencies, characterized in that on the surface of the rollers in a spiral there are made collars having a wave-shaped cross section, while on even and odd rollers the spirals are made with different pitch and directed s in opposite directions.

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