Crop threshing or separating – Straw chaff spreader or handling
Patent
1998-03-06
2000-09-05
Pezzuto, Robert E.
Crop threshing or separating
Straw chaff spreader or handling
460 49, 460112, A01F 1230
Patent
active
061134910
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to an arrangement in a cutting machine comprising cutting means disposed in a housing for comminuting material to be chopped.
In accordance with the embodiment of the invention to be described and illustrated herein and which is the one preferred at the moment, the cutting machine is a straw chopper for use in connection with a harvester combine, and wherein the cutting means comprises a chopper rotor having rotating knives and being rotatably mounted inside the housing, and counter-knives stationarily mounted inside the housing for cooperation with the rotating knives In accordance with the application referred to herein the material to be chopped consists of ordinary, dry straw, typically from wheat, barley, rye and oat, but the material may also originate from maize, sunflower or other plants comprising rather large and stiff plant parts.
2. Discussion of the Prior Act
Modern harvester combines are becoming larger and larger and their cutting tables wider and wider, considerably wider than the width of the combine proper. The cutting machine/rotary chopper connected to the combine has a width aproximately equal to that of the combine proper and it is designed to comminute or chop the material/straw after the threshing operation and to spread the material across an area which essentially corresponds to the width of the table, whereupon the material is mulched down into the soil. The spreading width of the chopper has reached its ultimate limit, which in the latest models of harvester combines having very large tables (close to 9 m) means that the material cannot be spread all the way to the side edges of the threshed string on the field being harvested. The result is an uneven distribution of the comminuted material across the threshed string (equalling the width of the table) with consequential differing cultivation conditions involving poor growth in the areas adjacent.
SUMMARY OF THE INVENTION
The object of the invention is to provide a device of the kind outlined above in order to insure improved spreading of the comminuted cut material on the ground across the entire width of the threshed string.
This object of the invention is achieved by means of an apparatus designed for supplying supplementary air to the housing in order to thus increase the amount and the rate of the air exiting from the cutting machine and in this manner to produce the desired improved spreading of the comminuted material on the ground.
DETAILED DESCRIPTION OF THE DRAWINGS
The invention is described in closer detail in the following with reference to the accompanied drawings, in which
FIG. 1 in a schematically lateral view illustrates a harvester combine equipped with the device in accordance with the invention,
FIG. 2 is a lateral view which on an enlarged scale illustrates the device in accordance with the invention at the rear end of the combine in accordance with FIG. 1,
FIG. 3 is a cross-sectional view along line III--III of FIG. 4,
FIG. 4 illustrates the device in accordance with the invention in a rear view as seen in the direction indicated by arrow A in FIGS. 1 and 2, and
FIG. 5 illstrates the device in a view from below, in the direction indicated by arrow B in FIGS. 1 and 2.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The harvester combine designated generally by numeral 1 in the drawing figures, is essentially of a conventional modern design, with the exception of the cutting machine in accordance with the invention, which is designated generally by reference 2, is in the form of a rotary chopper, and comprises a pick-up-reel 3 and a cutting table 4, the width of which is considerably larger, for instance five to six times larger, than the width of combine 1 proper. The straw-feed plants 5 or the like to be harvested are cut off on the cutting table 4 and by means of conveyers, not illustrated, they are conveyed to a thresher, not illustrated, wherein the straw and the grains are separated. By way of a rocke
REFERENCES:
patent: 3670739 (1972-06-01), Rowland-Hill
patent: 4056107 (1977-11-01), Todd et al.
patent: 4137923 (1979-02-01), Druffel et al.
patent: 4426826 (1984-01-01), Wesselmenn
patent: 4526180 (1985-07-01), Scott et al.
patent: 4614080 (1986-09-01), Hoepfner et al.
patent: 4646757 (1987-03-01), Schmitt et al.
patent: 4711253 (1987-12-01), Anderson
patent: 4735216 (1988-04-01), Scott et al.
patent: 4923431 (1990-05-01), Miller et al.
patent: 5021030 (1991-06-01), Halford et al.
patent: 5042973 (1991-08-01), Hammarstrand
patent: 5120275 (1992-06-01), Zacharias
patent: 5797793 (1998-08-01), Matousek et al.
patent: 5833533 (1998-11-01), Roberg
Kováacs ÁArpáad Fáabiáan
Pezzuto Robert E.
Rekordverden Sweden AB
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