RU200458U1 - ROOT CLEANER FROM SOIL - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular, to the soil remover for root crops. The root crop cleaner contains rollers mounted on a frame with the possibility of rotation in one direction and interconnected by sprockets. The sprockets of the even and odd rollers are installed outside the frame from different sides with the possibility of rotation of the even and odd rollers at different frequencies. The rollers are made in the form of spirals with a variable pitch. The ends of the spirals are rigidly fixed on bushings installed symmetrically inside the frame from different sides. The outer diameter of the sleeves is equal to the inner diameter of the spirals. The direction of winding the 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 for soil from root crops [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 the even and odd rollers are installed outside the frame from different sides with the possibility of rotation of the even and odd rollers at different frequencies.

The known device has a disadvantage - 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 with a variable pitch of winding, the ends of which are rigidly fixed on the bushings installed symmetrically inside the frame from different sides. The outer diameter of the bushings is taken equal to the inner diameter of the spirals. 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.

The soil cleaner for root crops includes rollers 2 mounted on the frame 1 with the possibility of rotation, made in the form of spirals with a variable pitch of winding. The rollers 2 are rigidly fixed on the bushings 3, installed symmetrically inside the frame 1 from different sides. The outer diameter of the sleeves 3 is equal to the inner diameter of the spirals. Bushings 3 are coaxially mounted on shafts 4. Shafts 4 are interconnected by sprockets 5 through a chain 6, and 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 with different frequencies from the drive 7. To ensure the possibility of rotation of the sprockets of 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. In addition, the winding of the spirals of the odd and even rollers 2 is made in opposite directions.

The soil cleaner for root crops works as follows. The drive 7 is turned on, which, through the shaft 8, transmits the torque to the sprockets 9 and 10, which, in turn, drive the sprockets 5 into rotation, driving even and odd rollers 2 through shafts 4 and bushings 3, respectively, with different frequencies. Then the root crops, uncleaned from the soil, are fed onto the rollers 2, made in the form of spirals. Interacting with the rotating surface of the rollers 2, the roots move in the direction of rotation of the rollers. When moving, the roots come into contact with the even and odd rollers 2 rotating at different frequencies, as a result, simultaneously with the translational, they receive a rotational motion with the presence of slipping along the surface of the rollers. Since the direction of winding the spirals of the odd and even rollers is made in opposite directions, then additionally the 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. Moreover, this displacement is uneven due to the different pitch of the spirals, which causes different in magnitude and direction of acceleration of root crops. As a result, the simultaneous turnover of root crops both in the direction of the translational movement and in the direction transverse from it increases. This, accordingly, increases the contact area of the root crops with the surface of the rollers 2, thereby improving the process of separating the soil from the 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 a variable pitch of winding and the direction of winding the spirals of odd and even rollers in opposite directions, rigid fastening of the ends of the spirals on bushings installed symmetrically inside the frame from different sides, the outer diameter of which is equal to the inner diameter of the spirals, improves the cleaning quality of root crops from the 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 to rotate even and odd rollers at different frequencies, characterized in that the rollers are made in the form of spirals with a variable pitch of winding, the ends of which are rigidly fixed on bushings installed symmetrically inside the frame on different sides of the frame, while the outer diameter of the bushings is equal to the inner diameter of the spirals, and the winding of the spirals of odd and even rollers is made in opposite directions.

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