FR2536242A2 - SELF-PROPELLING COMBINE HARVESTER - Google Patents

Abstract

IN A SELF-PROPELLED COMBINE OPERATION ACCORDING TO THE AXIAL THRESHING SYSTEM, THRESHING AND SEPARATION DRUMS 21, 22 ARE DISTANCE AXIALLY FROM ONE OF THE OTHER IN A COMMON CASING 20 AND HAVE OPPOSED DIRECTIONS FOR ROUTING. LEDIT CARTER 20 INCLUDES A SINGLE AND SINGLE CENTRAL OPENING OF OUTPUT 23 ASSOCIATED WITH DELIVERING ENDS OF SAID DRUMS 21, 22. A CHOPPER 24 COOPERATES WITH THE SAID OPENING 23.

Description

SELF-PROPELLETING COMBINE HARVESTER.

  This addition relates to a harvester-

  self-propelled thresher operating according to the axial threshing system, comprising a driving front axle and a rear steering axle, as well as a front deck of cutting bucket, an oblique conveyor and a grid system with air supply, said mechanism of threshing and axial separation being arranged, as a self-contained unit, in front of the drive axle, between the oblique conveyor and the deck of the cutting bucket and being removably coupled with these two aggregates also present under the form of separate units, this axial threshing and separation mechanism consisting of at least two threshing and separation drums housed in a common casing and receiving the crop separately by a passage opening

  respective associated with each threshing and separating drum

  ration, provided in the rear wall of the bucket deck

cutting.

  In a combine according to the main patent,

  the beaten straw is immediately rejected by two openers.

  tures formed in the two extreme regions of the casing surrounding the threshing and separating drums In particular when there are very large decks of cutting buckets, this causes a deposit of swaths which makes

  more difficult the removal of straw by collectors

  ses-presses The object of the present invention is to overcome this drawback In accordance with the invention, in a combine harvester of the aforementioned type, this object is achieved by the fact that the threshing and separation drums are axially distant from one of the other and have opposite routing directions; and that the casing comprises a single central outlet opening associated with the delivery ends of the two threshing and separation drums. As a variant, said threshing drums and

  separators have identical routing directions

  ticks, said housing comprising a central outlet opening and an outlet opening provided in an end region of said housing O According to another characteristic of the invention, it has proved to be convenient to combine

  choppers at said outlet openings.

  The invention will now be described in more detail with reference to the accompanying drawings by way of non-limiting examples and in which FIG. 1 is a plan view of the front part of a combine harvester; Figure 2 is a section along the line II-II of Figure 1; Figure 3 is a section along line III-I 1 I of Figure 1; and Figure 4 illustrates an alternative embodiment of the front part of a combine harvester shown in the

figure 1.

  In Figures 1 to 3, the reference 1 designates the front part of a combine harvester, a mechanism 2 of axial threshing known per se is rigidly locked to an oblique conveyor 3 by quick couplings 4 The mechanism 2 of axial threshing supports a deck 5 of the cutting bucket and this also by means of quick couplings 10 Therefore, for road transport, it is very easy to dismantle the deck of the bucket

  cutting, as well as the axial threshing mechanism

  quent, no width limitation is imposed on their

  design On the contrary, they can be built exclu-

  For the purpose of a high flow rate For this purpose, the deck 5 of the cutting bucket has a central separating finger 7 which subdivides the sectioned straw row into two partial circulations These partial circulations are each directed towards the one of two through holes 8 and 9 provided in the rear wall of the deck 5 of the cutting bucket To achieve this effect flawlessly, a supply cylinder 10 is provided with two groups of controlled supply fingers 11 and 12 provided in the vicinity of passage openings 8 and 9 and towards

  which the crop to be threshed is conveyed by.

  two pairs 14 and 15 of sheet metal propellers placed on the cylinder

  dre 10 and advancing in opposite direction As shown in particular in FIG. 2, charging turnstiles 16

  and 17 pass through the passage orifices 8 and 9 through their.

  branches 19 provided with elastic conveyor bats 18 which put the crop to be threshed into the mechanism 2 of axial threshing This mechanism 2 comprises two drums of

  threshing and separation 21 and 22 which are axially distant-

  ment of each other in a housing 20, have opposite directions of delivery and immediately reject the beaten straw or similar material through a single outlet opening 23 formed in the center of the housing 20, after this straw was ground by a chopper 24

  associated with said outlet opening (see Figure 3).

  Below the threshing and separating drums 21 and 22

  tion, are arranged on either side of the chopper 24 of the respective launching conveyors 25 and 26 which, by means of intermediate conveyors 27 whose width corresponds to that of said launching conveyors, convey the grain separated by said drums 21 and 22 to two scraper chains 29 and 30, parallel and spaced from one another in a

chimney 3 of the oblique conveyor.

  The front part of a combine harvester shown in FIG. 4 differs from that of FIG. 1 by the fact that a casing 20 ′ has two outlet openings 23 ′ and 23 ″ to which the beaten straw or the like is transferred by two drums 21 'and 22' of threshing and

  separation that have identical routing directions.

  In this case, it is naturally necessary to develop, in an apron 5 'of the cutting bucket, passage orifices 8' and 9 'so that these orifices are located each time before the delivery zone of said drums 21 'and 22' A feed cylinder 10 'is provided with corresponding helical sheets which direct the crop towards groups of feed fingers located in front of the

8 'and 9' through holes.

  It goes without saying that many modifications can be made to the combine described and

  shown, without departing from the scope of the invention.

Claims (3)

  1 Self-propelled combine harvester operating according to the axial threshing system, comprising a driving front axle and a rear steering axle, as well as a front deck of cutting bucket, an oblique conveyor and a grid system with air supply , said threshing and axial separation mechanism being arranged, as an autonomous unit, in front of the driving axle, between the oblique conveyor and the deck of the cutting bucket and being   detachably coupled with these two aggregates are present   both in the form of separate units, this mechanism   threshing and axial separation core consisting of at least two threshing and separation drums housed in a common casing and receiving the crop separately by a respective passage opening associated with each threshing and separation drum, formed in the wall   rear of the deck of the cutting bucket, as claimed   cation 1 of the main patent, combine harvester charac-   terrified by the fact that said threshing and separation drums (21, 22) are axially distant from one   each other and have opposite routing directions   sées; and by the fact that said casing (20) has a single central outlet opening (23) associated with the delivery ends of the two threshing and separation drums. 2 Self-propelled combine harvester operating according to the axial threshing system, comprising a driving front axle and a rear steering axle, as well as a front deck of cutting bucket, an oblique conveyor and a grid system with air supply , said threshing and axial separation mechanism being arranged, as an autonomous unit, in front of the driving axle, between the oblique conveyor and the deck of the cutting bucket and being removably coupled with these two aggregates occurring also in the form of separate units, this axial threshing and separation mechanism consisting of at least two threshing and separation drums housed in a common casing and receiving the crop separately by a respective passage opening associated with each threshing and separating drum, arranged in the rear wall of the deck of the cutting bucket, according to claim 1 of the main patent, combine harvester characterized in that the said drums (210, 22 ') for threshing and   separation have identical routing directions   ticks, said housing (20 ') having a central outlet opening and an outlet opening (23'; 23 ") provided   in an extreme region of this housing.   3 Self-propelled combine harvester according to one of the   Claims 1 and 2, characterized in that   choppers (24) are associated with the outlet openings (23, 23 ', 23 ").