SU1750467A1 - Device for separation of debris from roots and tubers - Google Patents

Abstract

Use: harvesting machines and post-harvest handling items for root crops. SUMMARY OF THE INVENTION: The cleaner contains counter-rotating rollers 1, above which working beds elastic blades 22 are mounted, transversely mounted on the longitudinal bar 18. The latter is pivotally attached to the cranks of the crankshafts 14, while its front part is bent upwards. Under the rollers 1, the scrapers 9 are mounted. During operation, the blades 22 periodically press the roots to the working surfaces of the rollers 1 and move them along the working channels of the cleaner. 2 hp f-ly, 2 ill.

Description

The invention relates to agricultural machinery, to devices for cleaning root crops from impurities.

The purpose of the invention is improving the quality of cleaning root crops.

Figure 1 shows a diagram of a cleaner • for root crops from impurities, side view; figure 2 is the same, rear view.

The root crop cleaner from impurities includes two working channels, formed by rigid cylindrical pairs rotating in opposite directions. the rollers, respectively, 1 and 2 and 3 and 4, Under them on the supports 5, 6, 7 and 8 parallel to the axes of the rollers with the possibility of adjusting the gap between their working surfaces and the blades are fixed knives - scrapers 9, 10, 11 and 12. ·. ·

A transporting device is located above the working channels. It includes two crankshafts 14 installed parallel to each other in bearings 13. The central angle between the cranks on each of the crankshafts is 2 7G. where Z. is the number of working channels. Due to the fact that in the considered design example Z = 2, the indicated angle is π.

On the front crankshaft shaft, an asterisk 15 of the circuit circuit of its drive into rotational motion is fixed. Bearings are placed on the crankshaft neck • of the crankshaft, the housings 16 and 17 of which are mounted on the rigid bar 18, and the bodies 19 and 20 on the rigid bar 21. The front ends of the bars 18 and 21 are gently bent upwards.

On the lower surfaces of the slats 18 and 21, strips 22 and pads 23 of elastic material are fixed.

In front of the cleaner, a guide for 24 root crops to the working channels is installed.

Purifier root vegetables from impurities works as follows.

The heap of root crops coming to the front of the cleaner by the guide 24 is distributed over the working channels formed by counter-rotating rollers 1 and 2, as well as 3 and 4, respectively. Elastic blades attached to the front ends of the strips 18 and 21 bent upwards also contribute to the flow of the heap. The surfaces of the rotating rollers heap root crops is cleaned of impurities of the soil and plant debris. When the root cleaner is cleaned from impurities, the trims 18 and 21, and with them the elastic blades, perform such plane-parallel motion. where the trajectory of movement of any point on them is a circle whose radius is equal to the radius of the crank of the crankshaft. As a result of this, the blades 22 cyclically press the root crops to the working surfaces of the rollers and move these root crops along the working channels of the cleaner. When root crops are pressed to the working surface of the rollers, the process of cleaning the heap from impurities improves. During the movement of the blades up, the root crops, not pressed against the rollers, rotate around their longitudinal axes. This is the next pressing the blades to the rollers provides a more complete cleaning of root crops from impurities.

Crankshafts rotate in a direction in which the speeds of the strips and the blades fixed on them in the lower position of the latter are directed towards the end of the working channels of the cleaner. Thanks to this, reliable transportation of root crops along the working channels by cyclic movements by elastic blades is ensured.

A mixture of soil and plant residues that adheres to the working surfaces of the rollers is cleaned off with scraper knives 9, 10.11 and 12.

Turning adjacent cranks on crankshafts to upell ensures alternate ’pressing of root crops to the rollers in adjacent channels, which ensures. It reduces the energy costs of the purifier.

Claims (3)

Claim 1. A root-crop cleaner from impurities, containing pairs of counter-rotating cylindrical rollers forming working channels, and a conveying device, characterized in that, in order to improve the quality of root crops cleaning, the conveying device is made in the form of a series of elastic blades mounted above each working channel, fixed transversely on a longitudinal bar pivotally attached to crankshafts of the crankshafts, with the front part of the bar bent upward. 2. The cleaner according to claim 1, on the basis of which the adjacent cranks of each crankshaft are rotated relative to 2 liters of each other at an angle where Z is the number of working channels. 3. The cleaner according to claim 1, according to the fact that under the rollers, scrapers are mounted parallel to their axes. - · Compiled by A. Volik g