RU199939U1 - ROOT CLEANER FROM SOIL - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular to the cleaners of root crops from the soil. The cleaner of root crops from the soil contains rollers installed on a frame with the possibility of rotation in one direction, connected by sprockets. The sprockets of even and odd rollers are installed outside the frame from different sides with the possibility of rotation of the even and odd rollers with different frequencies. The rollers are made in the form of spirals, the ends of which are rigidly fixed to the bushings. The outer diameter of the bushings is equal to the inner diameter of the spirals. The bushings are installed symmetrically inside the frame from different sides and are interconnected by strips installed with an equal pitch on the periphery of the bushings. The winding direction of spirals of odd and even rollers is made in opposite directions. The quality of cleaning root crops from soil is increased.

Description

The utility model relates to agricultural engineering, in particular to soil cleaners of root crops.

Known cleaner of root crops from soil [Patent RU No. 187599, Publ. 13.03.2019, Bul. No. 8], containing installed on the frame with the possibility of rotation in one direction cylindrical rollers. The rollers are interconnected by sprockets. The sprockets of even and odd rollers are installed outside the frame from different sides with the possibility of rotation of the even and odd rollers with different frequencies.

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

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

The specified technical result is achieved by the fact that the rollers are made in the form of spirals, the ends of which are rigidly fixed on the bushings. The outer diameter of the bushings is taken equal to the inner diameter of the spirals. The bushings are installed symmetrically inside the frame from different sides and connected to each other by strips, which are installed with an equal pitch on the periphery of the bushings. The direction of winding the spirals of odd and even rollers is performed in opposite directions.

FIG. 1 shows a general view of the cleaner, and FIG. 2 - the same, side view, in Fig. 3 is a cross-section of a drum with strips.

The soil cleaner for root crops includes rollers 2 made in the form of spirals installed on the frame 1 with the possibility of rotation in one direction. The ends of the spirals of the rollers 2 are rigidly fixed on the bushings 3, coaxially mounted on the shafts 4. The outer diameter of the bushings 3 is equal to the inner diameter of the spirals. Bushings 3 are installed symmetrically inside the frame 1 from different sides. The rollers 2 are connected to each other by shafts 4 and bushings 3 by sprockets 5 through a chain 6. Sprockets of even and odd rollers 2 are installed outside the frame 1 from different sides with the possibility of rotation of even and odd rollers 2 with different frequencies from the drive 7. To ensure the possibility of rotation of the sprockets even and odd rollers with different frequencies, the drive 7 is equipped with a shaft 8 with sprockets 9 and 10 installed at its opposite ends with a different number of teeth. The bushings 3 are interconnected by strips 11, which are installed with an equal pitch on the periphery of the bushings 3. The spirals of the odd and even rollers 2 are wound in opposite directions.

The soil cleaner for root crops works as follows. Drive 7 is switched on, which transmits torque to sprockets 9 and 10 through shaft 8. In turn, sprockets 9 and 10 through chain 6, sprockets 5, shafts 4 and bushings 3 rotate even and odd rollers 2, respectively, with different frequencies. Then the roots, uncleaned from the soil, are fed to the rollers 2, made in the form of spirals. Interacting with the rotating surface of the rollers 2, the roots move forward in the direction of rotation of the rollers. When moving, the roots come into contact with even and odd rollers 2, rotating at different frequencies, as a result, simultaneously with the translational, they receive a rotary motion with sliding along the surface of the rollers 2. Since the direction of winding the spirals of the odd and even rollers 2 is made in opposite directions, then additionally Root crops during their rotation and forward movement are displaced on each adjacent roller 2 to the left or to the right, depending on the direction of spiral winding. This increases the turnover of root crops both around its vertical and horizontal axes and, accordingly, the area of their contact with the surface of the rollers 2, thereby improving the process of separating the soil from the root crops. Installed with an equal pitch on the periphery of the bushings 3 and the strips 11 connecting them do not allow the spirals to stretch or shrink during rotation, which maintains a uniform pitch of winding of the spirals, and also maintains them without deflection in a horizontal position, preventing the root crop from gathering when moving to the center of the rollers 2. This helps to improve the quality of cleaning root crops. The soil separated from the root crops is removed into the gaps between the rollers 2, as well as between the spiral turns.

Consequently, the execution of the rollers in the form of spirals with the direction of winding the spirals of odd and even rollers in opposite directions, rigid fixing of the ends of the spirals on the bushings, the outer diameter of which is equal to the inner diameter of the spirals, the installation of the bushings symmetrically inside the frame from different sides and connecting them together with strips, installed with an equal pitch on the periphery of the bushings, improves the quality of cleaning root crops from soil.

Claims (1)

A soil cleaner for root crops, containing rollers mounted on the frame with the possibility of rotation in one direction, interconnected by sprockets, and the sprockets of even and odd rollers are installed outside the frame from different sides with the possibility of rotation of even and odd rollers with different frequencies, characterized in that the rollers are made in the form of spirals, the ends of which are rigidly fixed on bushings, the outer diameter of which is equal to the inner diameter of the spirals, the bushings are installed symmetrically inside the frame from different sides and are interconnected by strips installed with an equal pitch on the periphery of the bushings, and the direction of winding the spirals is odd and even rollers are made in opposite directions.

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