SU735207A1 - Root-crop harvester screen grid - Google Patents

Description

(54) SIZE GRINNING KRRNEKLUBERNOEBORNOE

CARS

I

FIELD OF THE INVENTION The invention relates to agricultural machinery, and may also find application in the coal and mining industries.

The closest to the proposed technical sushichnost and the achieved result is the sieve of the rumble of the root-harvesting machine, containing: its longitudinally positioned canes mounted on racks and interconnected by crossbars 1.

The disadvantage of the sieve, installed after the cylinders, is the sticking and clogging of canals by soil and plant impurities, as well as damage to harvested crops that fly out at high speeds from under the cylinders and hitting the sieve surface.

The purpose of the invention is to reduce the clogging of the sieve with soil and plant impurities and increase its separation capacity.

This is achieved by the fact that the sieve is provided with spring fingers, fixed in its front part and mounted above

reeds with a slope in the direction of transportation of root and tuber crops.

FIG. 1 shows a sieve in arrangement with the working bodies of the harvesting machine; in fig. 2 is a view along arrow A in FIG. one.

The sieve I is located next to the elevator 2 and the compass controller 3 and is fixed on the frame 4 of the screen, which is mounted on the suspensions 5 and is driven into oscillatory motion from the crank mechanism 6 s.

10 using sh.atuna 7.

The sieve 1 contains longitudinally arranged canes 8 mounted on racks 9 and interconnected by cross-beams 10. In this case, the sieve 1 is provided with spring fingers 11 fixed

15 in its front part and set above reeds 8 with a slope in the direction of transporting the root and tuber crops.

In the process of harvesting, harvesting culture, such as potatoes

20 or onions, and soil clumps are fed by an elevator 2 into a cofixer 3, the pneumatic cylinders of which destroy clumps, clean the tubers from the adhering soil and transfer the mass to the sieve 1.

At the same time, the mass of lumping from the cylinders 3, strikes against inclined spring fingers II, which vibrate under the action of a periodically varying amount of mass and intensively separate the destroyed soil lumps. Meeting the club with her fingers 11 occurs at a certain angle, which significantly reduces their damage. In addition, the degree of impact of the fingers 11 on the tubers is sharply reduced due to the pinning of the fingers. The overlapping of the ends of the fingers 11 and the reeds 8 excludes jamming of the tubers and clogging of sieve 1 with plant impurities.

Separated on the finger surface, the crop is removed onto the sieve 1 and transported to the next working parts of the machine.

Supplying the sieve with spring fingers fixed in its front part and installed above the reeds with a tilt in the direction of transporting the root and tuber crops, reduces clogging

sieve soil and plant impurities and increase its separation ability.

Claims (1)

Invention Formula . . . The sieve of the root-harvesting machine containing longitudinally arranged canes mounted on racks and interconnected by crossbars, characterized in that, in order to reduce clogging of the sieve with soil and plant impurities and increasing its separation capacity, the sieve is fitted with spring fingers fixed in its front part and mounted above reeds with a slope in the direction of transporting the root and tuber crops. Sources of information taken into account in the examination 1. G. Petrov D. Potato harvesting machines. M., Mechanical Engineering, 1972, p. 16, fig. four.