DE1060645B - Potato harvester - Google Patents

Description

GERMAN

There are already potato harvesters that divide the potato dam outwards by alternately, shares again arranged on both sides of a frame one behind the other and adjustable in their spacing Push in the middle, loosening and crumbling the soil and bringing the potatoes to the surface bring them where they then stay. Another machine works in the way that the potato dam of two somewhat overlapping, with their surfaces forming an angle, in height and inclination adjustable and rotatable concave disks added between these and on a likewise in Height and inclination adjustable sieve is promoted. These machines have the disadvantage that a considerable amount of soil and crops pushed together on a relatively narrow strip and is accumulated -or. is fed to a relatively narrow sieve, so that a uniform and sufficient separation of the soil from the potatoes cannot be achieved.

In order to remove the potato tops, aggregates are known, which by a snapping toothed wheel, that is arranged close behind a roller that runs on the potato dam and holds the herb in place is to grasp the potato tops and pull them up. Another machine attaches by means of a fast rotating Roll the potato crane sideways onto a springy and rising iron bar, from which one then the tubers are stripped by the forks of a rapidly rotating centrifugal wheel. Such arrangements require a high expenditure of force, and due to the considerable rotational speeds the potatoes are easily damaged, especially if rotating spinning forks are used will.

Other known potato harvesting machines have a lengthwise, crosswise or even oblique to the direction of travel lying, rotatable screw roller, which, however, is insufficient in the soil, potatoes and tubers separates from each other.

The invention relates to a potato harvester which eliminates the aforementioned shortcomings. The invention is based on the idea of gradually lifting off the potato dam, then a sieve grate and then a conveyor. The essence of the invention can be seen in that the potato dam is gradually being dismantled from one side, for the purpose this breakdown several organs are used, which are staggered laterally, so that first the potato tops removed and discarded and then the potato dam grasped laterally in two stages and in wide, thin layer and thrown over the entire width of the sieve on the grate. The distribution

Applicant:
Willi Schreck,
Ulm / Danube, Trollingerweg 3

Willi Schreck, Ulm / Danube, has been named as the inventor

over the entire length of the laterally arranged sieve grate has the advantage over other known ones Facilities in which the raised potato dam over a relatively narrow sieve grate is promoted in the direction of travel that at each point of the sieve grate a relatively thin A layer of earth with the potatoes is thrown on the grate and even with moist soil The soil is separated out quickly and the grate does not become clogged. The heavy, mostly damp ones Earth masses only travel a short distance, which saves drive energy.

For this purpose, according to the invention, a potato harvester with inclined disc coulters and conveying organs with a sieve grate arranged to the side of the same and a subsequent elevator work together, two rotating disc coulters working on the same side one behind the other and staggered sideways.

In order to feed the potato dam lifted from the coulters to the sieve grate and the elevator, are arranged above the shares and the sieve grate known throwing wheels as conveying organs.

To prevent the raised potato dam from mixing with the potato tops all over Grate surface is fed, is also provided in a known manner in front of the potato dam to arrange a cultivator share and above this a well-known toothed wheel. In this way, the herb is first removed and carried away, and the potato dam lifted off without the herb.

Finally, instead of disc shares, known lifting and conveying elements can be used Serve screw drums, which are effective in a corresponding manner.

In the drawing, an embodiment of the potato harvester is shown. It shows

809 770/41

Claims (4)

Fig. 1 is a plan, Fig. 2 is a view from the front on a larger scale, Fig. 3 is a drum with helical " Shares that can be used in place of the disc shares and conveyors, and 4 shows a diagrammatic side view of the cultivator share. A frame 1 rests on running wheels 2 and steering wheels 3, the stub axles 4 of which are rotatable in sockets 5. The running wheels 2 are firmly connected to a continuous axle 6 which runs in bearings 7 on the frame 1. The axle 6 drives a countershaft 8, with which a shaft 9 is driven, which runs in bearings 9 a and 9 b . On the shaft 9 sit disk wheels IOa and 10b, over the endless belts IOc and; 10 d run. The endless belts IOc and IOci carry strips IOc and are guided over disk wheels 10 / and IOg which sit on a corrugated OA. The WellelOA runs in bearings 11a and 11b , which are attached to a frame with the supports 13 and 14. The supports are firmly connected to the frame 1. A belt pulley 16 is driven by the back gear 8 by means of a belt drive 15a, which sits on a shaft 16 a, which carries the toothed wheel 17. This toothed wheel is so high that it is only the herb or the dam crown captured. Under the zinc wheel 17 a cultivator share 18 is attached so deep that that the potato plants are raised and the potato dam is divided. Behind the cultivator share 18 a rotating disc share 19 inclined towards the center is arranged, above which a throwing wheel 20 is located. The disc coulter 19 is carried by a holder 21, while the throwing wheel, of which only two blades are shown for the sake of clarity, on one Longitudinal shaft 20a sits, which is driven by the countershaft. Below the disc coulter 19 and of the throwing wheel 20, a grate 22 is provided which can be adjusted with the frame 1 by means of holders 23, 24, 25, 26 connected is. This grate also extends over the entire length of the frame 1 and is located on one long side, so that the part of the potato field dam covered by the disc coulter 19 is brought with the help of the throwing wheel 20 on the grate 22, from which the potatoes through the elevator 10 are conveyed further. One side of the potato ridge with the potatoes is lifted from the disc coulter 19, while the other side of the potato ridge is gripped by a second arched disc coulter 27 and then also fed to the grate 22 by the slightly inclined throwing wheel 28. The throwing wheel 28 is also driven by the shaft 20a. In place of the disc coulter 19 and the throwing wheel 28 rolls 30 can ίο with helically patch strips may be used. The strips shown are designated by 31 and 32, while the reference numerals 33 and 34 only designate the approaches of the other, parallel strips. In Fig. 4, the cultivator coulter 18 is shown diagrammatically with its holder. Patent claims: ao 1. Potato harvester with inclined disc coulters and conveying elements with a side same arranged screen grate and subsequent elevator work together, characterized in that that two rotating disc coulters (19, 27) working on the same side are provided one behind the other and staggered sideways are. 2. Potato harvester according to claim 1, characterized in that over the shares (19, 27) and the sieve grate (22) are arranged as conveying elements known throwing wheels (20, 28). 3. Potato harvester according to claim 1, characterized in that one in known Way in front of the coulters (19, 27) that lift off the potato dam (18) a likewise known toothed wheel (17) is arranged. 4. Potato harvester according to claim 1, characterized in that the lifting and conveying elements known per se screw drums (30) are used. Considered publications:
German patents Nos. 166 239, 389 038, 412 192, 495 488, 710 707, 732 048, 845 119. 1 sheet of drawings © 809 770/41 3.59