RU199940U1 - 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 with a variable pitch. The direction of winding spirals of odd and even rollers is made in opposite directions. The use of this cleaner allows you to improve the quality of cleaning root crops from soil.

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 with a variable pitch of winding, and 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. Rolls 2 are rigidly mounted on bushings 3, coaxially mounted on shafts 4. Shafts 4 are interconnected by sprockets 5 through a chain 6, and sprockets of even and odd rolls 2 are installed outside the frame 1 from different sides with the possibility of rotation of even and odd rolls with different frequencies from drive 7. To ensure the possibility of rotation of the sprockets of the 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 on the 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 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 step of winding the spirals is made variable, and the direction of winding the spirals of the odd and even rollers is made in opposite directions, in addition, the root crops, when rotating and moving forward, 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 forward movement and in the direction transverse to it increases. This, accordingly, increases the area over which the root crops in the cleaning process contact 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 increases 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 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, and windings of spirals of odd and even rollers are directed in opposite directions.

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