EP0667447A1 - Self propelled harvester - Google Patents

Self propelled harvester Download PDF

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Publication number
EP0667447A1
EP0667447A1 EP95100400A EP95100400A EP0667447A1 EP 0667447 A1 EP0667447 A1 EP 0667447A1 EP 95100400 A EP95100400 A EP 95100400A EP 95100400 A EP95100400 A EP 95100400A EP 0667447 A1 EP0667447 A1 EP 0667447A1
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EP
European Patent Office
Prior art keywords
self
housing
harvesting machine
machine according
screening device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95100400A
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German (de)
French (fr)
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EP0667447B1 (en
Inventor
Ludger Jungemann
Hermann Dreesbeimdieke
Lambert Sanders
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Claas KGaA mbH
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Claas KGaA mbH
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Publication of EP0667447A1 publication Critical patent/EP0667447A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12Filtering, cooling, or silencing cooling-air

Definitions

  • the invention relates to a self-propelled harvesting machine with a drive motor, a cooler with cooler fan and a rotating sieve device arranged upstream of the latter for retaining dirt particles present in the sucked-in cooling air, the sieve device being associated with an outer housing having a small effective suction surface as the air inlet surface of the sieve device, which is at least partially open on the side facing the screening device and which is connected via an outer pipe to the suction side of a suction blower, a screening element opposite the open side of the open housing being arranged within the screening device.
  • Such a harvesting machine is known from DE 40 33 204 A1.
  • this harvesting machine has been designed so that a shielding element associated with the housing is arranged in the form of a flat plate within the rotating drivable sieve device.
  • a suction device is provided which sucks the dirt particles off the surface of the rotating sieve.
  • the present invention is therefore based on the object of designing a self-propelled harvesting machine of the type specified at the outset in such a way that it satisfactorily fulfills the requirements to be met with regard to the cleaning action of the rotating screening device.
  • the shielding element is designed as an inner housing, the surface of which faces the screening device is open, the opening of the shielding housing being larger than the opening of the outer housing, which is connected to the suction side of a blower. Due to the different widths of the opposing openings of the inner and outer housing, an annular gap is formed, through which the air mostly first enters the shielding housing through openings of the rotating sieve device, is diverted there and then again from the inside through the openings of the rotating sieve device the outer housing is sucked. This ensures that the dirt particles are additionally blown out, so to speak. In this way, an optimal cleaning of the rotating sieve device is achieved. This cleaning effect is further favored by the shielding housing having an arcuate cross section.
  • the shielding housing Due to the design of the shielding housing according to the invention, the air flowing out through the housing is correspondingly positively guided.
  • the shielding housing is provided with sealing strips at its edges.
  • the guidance of the air within the shielding housing is further favored by the fact that the cross section of the shielding housing increases continuously towards the radial casing of the screening device. This enlargement of the cross section takes into account the increasing diameter of the screening device towards the outside. Further refinements of the invention are defined in more detail in the subclaims.
  • a self-propelled forage harvester which, in a manner known per se, has front material intake elements 2 which are followed by the actual chopping unit 3.
  • the material comminuted by this chopping unit 3 arrives at a pair of conditioning rollers 4, through which the chopped material is crushed.
  • a post-accelerator 6 is seen behind the pair of conditioning rollers 4 in the conveying direction intended. It essentially consists of a drivable axis 7 and its associated conveyor strips 8, the conveyor strips 8 being at a distance from the axis 7.
  • the conveyor strips act mechanically on the crops fed to them by the conditioning roller pair and fling the latter out through the ejection channel 5 with sufficient energy.
  • the post-accelerator 6 is designed as part of the ejection channel 5. It has the property of a conveying fan, which sucks in a strong air flow axially through openings in its housing side walls.
  • a line 9 is connected to one or both suction sides of this post-accelerator and is connected at its other end to a housing 10.
  • the latter is assigned to a rotating sieve device 11 and covers both part of its end face 12 and part of its jacket 13, the housing on its side facing the rotating sieve device 11 being completely open or at least having openings so that it adheres to the outer surface of the sieve device Dust and impurities can be sucked off via line 9. In this way, it is ensured that, on the one hand, the rotating screening device cannot become clogged and, on the other hand, overheating and contamination of the motor 14 is avoided, since the extracted particles with the chopped material leave the machine room via the ejection channel.
  • the shielding housing arranged in the interior of the screening device 11 is identified by the reference symbol 15.
  • Figure 1 shows that in the previously known embodiment, the shielding element is a flat plate large P, which is angled against the vertical, as well as against the radial inner surface of the screening device 11. As indicated by the arrows in FIG. 1, the air flowing through the housing 10 is sucked in through the gaps between the screening device 11 and the housing 10 and the plate P. It follows that the cleaning effect is correspondingly unsatisfactory, because contamination is essentially only sucked off from the outer surface of the rotating sieve device.
  • the air first flows laterally next to the housing 10 through the end face 12 of the rotating sieve device into the interior of the shielding housing 15, is deflected there and then from the inside through the perforated end face 12 into the outer housing 10 is pulled.
  • the air flow thus increased not only reliably cleans the outer surfaces of the screening device 11, but also the suction openings thereof.
  • FIGS 2 and 3 show the drive of the rotating screening device 11.
  • the basket of the screening device 11 is rotatably mounted on a rotating shaft 16.
  • a ring gear 17 which has an internal toothing which is in engagement with a drive pinion 18.
  • the drive pinion 18 is not fixed in a rotationally fixed manner on the drive journal of a motor.
  • the basket of the screening device 11 is attached to rod-like basket holders 19.
  • the basket holder and the opposite wall of the basket of the screening device 11 are fixedly connected to two hubs 20 which are rotatably mounted on the fixed shaft 16.
  • Reference numbers 21 still identify frame-fixed struts for stabilization which are on the side facing away from the outer housing 10.
  • On the side facing the housing 10, a further fixed strut 22 is attached to the shaft 16 and is attached to the housing 10 at the other end.
  • the shielding housing 15 is fastened to a rod-shaped holder 23, which is likewise placed on the shaft 16 by means of a sleeve.
  • the shielding housing 15 is shown as a detail in FIGS. 4 to 7. It can be seen from FIGS. 4, 5, 7 in connection with FIG. 3 that it widens conically towards the casing of the screening device.
  • Figure 6 shows that it is semicircular in cross section.
  • the edge assigned to the radial jacket 13 of the screening device 11 is formed in an arc.
  • Sealing strips 24, which form a labyrinth are attached to the two longitudinal sides facing the housing 10.
  • the shielding housing 15 is provided with curved sealing strips 25 which describe a semicircle. However, these strips 25 are on the side facing away from the housing 10. The distances between the strips are about twice as high as their heights.
  • the head of the shielding housing 15 assigned to the fixed shaft 16 is identified by the reference numeral 26.
  • the shielding housing 15 can be designed in many ways, in particular with regard to its cross section.
  • the air guide strips 24, 25 that form the labyrinths are essential.
  • the basket of the screening device 11 can be driven in rotation.
  • the housing 10 in combination with the shielding hood 15 act in multiple designs on the screen surfaces.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combines (AREA)
  • Fertilizing (AREA)
  • Threshing Machine Elements (AREA)

Abstract

An automatic harvesting machine has the produce fed into a chopping stage (3) where it is reduced into particles that can be transported (4) into an accelerator (6) for discharge through a duct (5) for collection. The accelerator has a blower with suction inlets. At the rear of the unit is the engine (14) and directly in front of this is a rotating filter (11). This passes in front of a housing (10) that is coupled to a suction duct (9). Particles and dust are continuously removed from the filter to allow air cooling of the engine to be continuously maintained.

Description

Die Erfindung betrifft eine selbstfahrende Erntemaschine mit einem Antriebsmotor, einem Kühler mit Kühlerventilator und einer letzterem vorgeordneten, rotierenden Siebeinrichtung zum Zurückhalten von in der angesogenen Kühlluft vorhandenen Schmutzpartikeln, wobei der Siebeinrichtung ein eine kleine Wirksaugfläche als die Lufteinlaßfläche der Siebeinrichtung aufweisendes äußeres Gehäuse zugeordnet ist, das an der der Siebeinrichtung zugewandten Seite zumindest teilweise offen ist und welches über eine äußere Rohrleitung mit der Saugseite eines Sauggebläses verbunden ist, wobei innerhalb der Siebeinrichtung ein der offenen Seite des offenen Gehäuses gegenüberliegendes Abschirmelement angeordnet ist.The invention relates to a self-propelled harvesting machine with a drive motor, a cooler with cooler fan and a rotating sieve device arranged upstream of the latter for retaining dirt particles present in the sucked-in cooling air, the sieve device being associated with an outer housing having a small effective suction surface as the air inlet surface of the sieve device, which is at least partially open on the side facing the screening device and which is connected via an outer pipe to the suction side of a suction blower, a screening element opposite the open side of the open housing being arranged within the screening device.

Eine solche Erntemaschine ist aus der DE 40 33 204 A1 bekannt. In der Praxis ist diese Erntemaschine so ausgeführt worden, daß innerhalb der rotierenden antreibbaren Siebeinrichtung ein dem Gehäuse zugeordnetes Abschirmelement in Form einer ebenen Platte angeordnet ist. Vor der rotierenden Siebeinrichtung im Bereich dieser Platte ist eine Saugeinrichtung vorgesehen, die die Schmutzpartikel von der Oberfläche des rotierenden Siebes absaugt. Es hat sich jedoch in der Praxis gezeigt, daß eine derartige Reinigungseinrichtung nicht immer optimal arbeitet. Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine selbstfahrende Erntemaschine der eingangs näher bezeichneten Art so auszugestalten, daß sie mit Hinblick auf die Reinigungswirkung der rotierenden Siebeinrichtung die an sie zu stellenden Anforderungen in zufriedenstellender Weise erfüllt. Dies wird dadurch erreicht, daß das Abschirmelement als ein inneres Gehäuse ausgebildet ist, dessen der Siebeinrichtung zugewandte Fläche offen ist, wobei die Öffnung des Abschirmgehäuses größer ist als die Öffnung des äußeren Gehäuses, welches mit der Saugseite eines Gebläses verbunden ist. Durch die unterschiedlichen Weiten der sich gegenüberstehenden Öffnungen des inneren und äußeren Gehäuses wird ein Ringspalt gebildet, durch den die Luft größtenteils zunächst durch Öffnungen der rotierenden Siebeinrichtung in das Abschirmgehäuse hineingelangt, dort umgeleitet wird und dann von innen her wiederum durch die Öffnungen der rotierenden Siebeinrichtung in das äußere Gehäuse gesaugt wird. Hierdurch wird erreicht, daß die Schmutspartikelchen sozusagen zusätzlich ausgeblasen werden. Auf diese weise wird eine optimale Reinigung der rotierenden Siebeinrichtung erreicht. Begünstigt wird diese Reinigungswirkung noch durch die im Querschnitt bogenförmige Ausgestaltung des Abschirmgehäuses. Durch die erfindungsgemäße Ausgestaltung des Abschirmgehäuses wird die durch das Gehäuse abströmende Luft sinngemäß zwangsgeführt. Um die Saugwirkung auf die rotierende Siebeinrichtung nicht durch sonstige Lufteinströmungen zu beeinflussen und um einen hohen Wirkungsgrad zu erzielen, ist das Abschirmgehäuse an seinen Rändern mit Abdichtleisten versehen. Die Führung der Luft innerhalb des Abschirmgehäuses wird dadurch noch begünstigt, daß sich der Querschnitt des Abschirmgehäuses kontinuierlich zu der radialen Ummantelung der Siebeinrichtung hin vergrößert. Durch diese Vergrößerung des Querschnittes wird dem größer werdenden Durchmesser der Siebeinrichtung nach außen hin Rechnung getragen. Weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen näher definiert.Such a harvesting machine is known from DE 40 33 204 A1. In practice, this harvesting machine has been designed so that a shielding element associated with the housing is arranged in the form of a flat plate within the rotating drivable sieve device. In front of the rotating sieve device in the area of this plate, a suction device is provided which sucks the dirt particles off the surface of the rotating sieve. However, it has been shown in practice that such a cleaning device does not always work optimally. The present invention is therefore based on the object of designing a self-propelled harvesting machine of the type specified at the outset in such a way that it satisfactorily fulfills the requirements to be met with regard to the cleaning action of the rotating screening device. This is achieved in that the shielding element is designed as an inner housing, the surface of which faces the screening device is open, the opening of the shielding housing being larger than the opening of the outer housing, which is connected to the suction side of a blower. Due to the different widths of the opposing openings of the inner and outer housing, an annular gap is formed, through which the air mostly first enters the shielding housing through openings of the rotating sieve device, is diverted there and then again from the inside through the openings of the rotating sieve device the outer housing is sucked. This ensures that the dirt particles are additionally blown out, so to speak. In this way, an optimal cleaning of the rotating sieve device is achieved. This cleaning effect is further favored by the shielding housing having an arcuate cross section. Due to the design of the shielding housing according to the invention, the air flowing out through the housing is correspondingly positively guided. In order not to influence the suction effect on the rotating sieve device by other air inflows and to achieve a high degree of efficiency, the shielding housing is provided with sealing strips at its edges. The guidance of the air within the shielding housing is further favored by the fact that the cross section of the shielding housing increases continuously towards the radial casing of the screening device. This enlargement of the cross section takes into account the increasing diameter of the screening device towards the outside. Further refinements of the invention are defined in more detail in the subclaims.

Im folgenden soll die Erfindung anhand eines Ausführungsbeispieles und mehrerer dieses schematisch darstellender Figuren erläutert werden. Dabei zeigt:

  • Figur 1 eine selbstfahrende Erntemaschine in Form eines Feldhäckslers in der Seitenansicht.
  • Figur 1a eine Prinzipsskizze der Luftführung gemäß dem Stand der Technik,
  • Figur 1 b eine Prinzipsskizze der Luftführung gemäß der Erfindung,
  • Figur 2 die rotierend antreibbare Siebeinrichtung in einer Stirnansicht und Schnitt nach der Linie 11-11 der Figur 1,
  • Figur 3 die rotierend antreibbare Siebeinrichtung mit Seitenblick auf die radiale Ummantelung der Siebeinrichtung,
  • Figur 4 die Abschirmhaube in Schnittdarstellung gemäß der Linie IV-IV in Figur 5,
  • Figur 5 das Abschirmgehäuse in einer Stirnansicht von der Seite der rotierenden Siebeinrichtung aus gesehen,
  • Figur 6 den Querschnitt des Abschirmgehäuses entlang der Schnittlinie VI-VI in Figur 5 und
  • Figur 7 das Abschirmgehäuse in einer Ansicht in Richtung der Pfeiles VII in den Figuren 4 und 5 gesehen.
In the following, the invention will be explained on the basis of an exemplary embodiment and several figures which schematically illustrate it. It shows:
  • Figure 1 shows a self-propelled harvesting machine in the form of a forage harvester in side view.
  • FIG. 1a shows a basic sketch of the air duct according to the prior art,
  • FIG. 1 b shows a basic sketch of the air duct according to the invention,
  • FIG. 2 shows the rotatingly drivable screening device in an end view and section along the line 11-11 of FIG. 1,
  • FIG. 3 the rotatingly drivable sieve device with a side view of the radial casing of the sieve device,
  • FIG. 4 the shielding hood in a sectional view along the line IV-IV in FIG. 5,
  • FIG. 5 shows the shielding housing in an end view from the side of the rotating screening device,
  • 6 shows the cross section of the shielding housing along the section line VI-VI in Figure 5 and
  • Figure 7 seen the shielding housing in a view in the direction of arrow VII in Figures 4 and 5.

Mit 1 ist beispielsweise ein selbstfahrender Feldhäcksler bezeichnet, der in an sich bekannter Weise vordere Guteinzugsorgane 2 aufweist, denen das eigentliche Häckselaggregat 3 nachgeschaltet ist. Das von diesem Häckselaggregat 3 zerkleinerte Gut gelangt zu einem Konditionierwalzenpaar 4, durch welches das Häckselgut zerquetscht wird. Um nun dieses zerquetschte Häckselgut einwandfrei durch den gekrümmten Auswurfkanal 5 beispielsweise auf ein parallel neben dem Feldhäcksler herfahrendes Transportfahrzeug abwerfen zu können, ist in Förderrichtung betrachtet hinter dem Konditionierwalzenpaar 4 ein Nachbeschleuniger 6 vorgesehen. Er besteht im wesentlichen aus einer antreibbaren Achse 7 und ihr zugeordneten Förderleisten 8, wobei die Förderleisten 8 einen Abstand zur Achse 7 aufweisen. Die Förderleisten wirken mechanisch auf das ihnen durch das Konditionierwalzenpaar zugeführte Erntegut ein und schleudern letzteres durch den Auswurfkanal 5 mit genügender Energie nach außen. Der Nachbeschleuniger 6 ist als Teil des Auswurfkanals 5 ausgebildet. Er besitzt die Eigenschaft eines Fördergebläses, welches axial durch Öffnungen in seinen Gehäuseseitenwänden einen starken Luftstrom ansaugt. An einer oder beiden Saugseiten dieses Nachbeschleunigers ist eine Leitung 9 angeschlossen, die mit ihrem anderen Ende an ein Gehäuse 10 angeschlossen ist. Letzteres ist einer rotierenden Siebeinrichtung 11 zugeordnet und bedeckt sowohl einen Teil ihrer Stirnfläche 12 wie auch einen Teil ihres Mantels 13, wobei das Gehäuse an seiner der rotierenden Siebeinrichtung 11 zugewandten Seite ganz offen ist oder zumindest Öffnungen aufweist, so daß an der Außenfläche der Siebeinrichtung anhaftender Staub und Verunreinigungen über die Leitung 9 abgesaugt werden können. Auf diese Weise ist gewährleistet, daß sich einerseits die rotierende Siebeinrichtung nicht zusetzen kann und andererseits eine Überhitzung und Verschmutzung des Motors 14 vermieden wird, da die abgesaugten Teilchen mit dem Häckselgut über den Auswurfkanal den Maschinenraum verlassen.1 denotes, for example, a self-propelled forage harvester which, in a manner known per se, has front material intake elements 2 which are followed by the actual chopping unit 3. The material comminuted by this chopping unit 3 arrives at a pair of conditioning rollers 4, through which the chopped material is crushed. In order to be able to discharge this crushed chopped product properly through the curved discharge channel 5, for example onto a transport vehicle traveling parallel to the forage harvester, a post-accelerator 6 is seen behind the pair of conditioning rollers 4 in the conveying direction intended. It essentially consists of a drivable axis 7 and its associated conveyor strips 8, the conveyor strips 8 being at a distance from the axis 7. The conveyor strips act mechanically on the crops fed to them by the conditioning roller pair and fling the latter out through the ejection channel 5 with sufficient energy. The post-accelerator 6 is designed as part of the ejection channel 5. It has the property of a conveying fan, which sucks in a strong air flow axially through openings in its housing side walls. A line 9 is connected to one or both suction sides of this post-accelerator and is connected at its other end to a housing 10. The latter is assigned to a rotating sieve device 11 and covers both part of its end face 12 and part of its jacket 13, the housing on its side facing the rotating sieve device 11 being completely open or at least having openings so that it adheres to the outer surface of the sieve device Dust and impurities can be sucked off via line 9. In this way, it is ensured that, on the one hand, the rotating screening device cannot become clogged and, on the other hand, overheating and contamination of the motor 14 is avoided, since the extracted particles with the chopped material leave the machine room via the ejection channel.

Das im Inneren der Siebeinrichtung 11 angeordnete Abschirmgehäuse ist durch das Bezugszeichen 15 gekennzeichnet.The shielding housing arranged in the interior of the screening device 11 is identified by the reference symbol 15.

Die Figur 1 zeigt, daß bei der bislang bekannten Ausführung das Abschirmelement eine ebene Platte groß P ist, die in abgewinkelter Form gegen die senkrechte, wie auch gegen die radiale Innenfläche der Siebeinrichtung 11 gerichtet ist. Wie in Figur 1 durch die Pfeile angedeutet, wird die durch das Gehäuse 10 abströmende Luft durch die Spalten zwischen der Siebeinrichtung 11 und dem Gehäuse 10 sowie der Platte P angesaugt. Es ergibt sich, daß die Reinigungswirkung entsprechend unbefriedigend ist, weil nämlich Verunreinigung im wesentlichen nur von der äußeren Oberfläche der rotierenden Siebeinrichtung abgesogen werden. Bei der Ausführung gemäß der erfindungsgemäßen Erntemaschine ist zu erkennen, daß die Luft zunächst seitlich neben dem Gehäuse 10 durch die Stirnfläche 12 der rotierenden Siebeinrichtung hindurch in das Innere des Abschirmgehäuses 15 strömt, dort umgelenkt wird und dann von innen durch die gelochte Stirnfläche 12 in das äußere Gehäuse 10 gezogen wird. Durch den somit verstärkten Luftstrom werden nicht nur die äußeren Oberflächen der Siebeinrichtung 11, sondern auch deren Saugöffnungen zuverlässig gereinigt.Figure 1 shows that in the previously known embodiment, the shielding element is a flat plate large P, which is angled against the vertical, as well as against the radial inner surface of the screening device 11. As indicated by the arrows in FIG. 1, the air flowing through the housing 10 is sucked in through the gaps between the screening device 11 and the housing 10 and the plate P. It follows that the cleaning effect is correspondingly unsatisfactory, because contamination is essentially only sucked off from the outer surface of the rotating sieve device. In the embodiment according to the harvesting machine according to the invention it can be seen that the air first flows laterally next to the housing 10 through the end face 12 of the rotating sieve device into the interior of the shielding housing 15, is deflected there and then from the inside through the perforated end face 12 into the outer housing 10 is pulled. The air flow thus increased not only reliably cleans the outer surfaces of the screening device 11, but also the suction openings thereof.

Die Figuren 2 und 3 zeigen den Antrieb der rotierenden Siebeinrichtung 11. Dazu ist der Korb der Siebeinrichtung 11 auf einer rotierenden Welle 16 drehbar gelagert. Zum Antrieb ist sie mit einem Zahnkranz 17 versehen, der eine Innenverzahnung aufweist, die mit einem Antriebsritzel 18 in Eingriff steht. Das Antriebsritzel 18 ist nicht in näher erläuterter Weise auf den Antriebszapfen eines Motors drehfest aufgesetzt.Figures 2 and 3 show the drive of the rotating screening device 11. For this purpose, the basket of the screening device 11 is rotatably mounted on a rotating shaft 16. For the drive, it is provided with a ring gear 17 which has an internal toothing which is in engagement with a drive pinion 18. The drive pinion 18 is not fixed in a rotationally fixed manner on the drive journal of a motor.

Gemäß der Figur 3 ist der Korb der Siebeinrichtung 11 an stabartigen Korbhaltern 19 befestigt. Die Korbhalter sowie die gegenüberliegende Wand des Korbes der Siebeinrichtung 11 sind mit zwei Naben 20 fest verbunden, die auf der festen Welle 16 drehbar gelagert sind. Durch die Bezugszeichen 21 sind noch rahmenfeste Streben zur Stabilisierung gekennzeichnet, die an der dem äußeren Gehäuse 10 abgewandten Seite stehen. An der dem Gehäuse 10 zugewandten Seite ist auf die Welle 16 eine weitere feste Strebe 22 aufgesetzt, die mit dem anderen Ende an dem Gehäuse 10 befestigt ist. Das Abschirmgehäuse 15 ist an einem stabförmigen Halter 23 befestigt, der ebenfalls mittels einer Hülse auf die Welle 16 aufgesetzt ist.According to FIG. 3, the basket of the screening device 11 is attached to rod-like basket holders 19. The basket holder and the opposite wall of the basket of the screening device 11 are fixedly connected to two hubs 20 which are rotatably mounted on the fixed shaft 16. Reference numbers 21 still identify frame-fixed struts for stabilization which are on the side facing away from the outer housing 10. On the side facing the housing 10, a further fixed strut 22 is attached to the shaft 16 and is attached to the housing 10 at the other end. The shielding housing 15 is fastened to a rod-shaped holder 23, which is likewise placed on the shaft 16 by means of a sleeve.

In den Figuren 4 bis 7 ist das Abschirmgehäuse 15 als Einzelheit dargestellt. Aus den Figuren 4, 5, 7 in Verbindung mit der Figur 3 ergibt sich, daß sie sich zum Mantel der Siebeinrichtung hin konisch erweitert. Die Figur 6 zeigt, daß sie im Querschnitt halbkreisförmig gestaltet ist. Nach der Figur 5 ist der dem radialen Mantel 13 der Siebeinrichtung 11 zugeordnete Rand im Bogen ausgebildet. An den beiden dem Gehäuse 10 zugewandten Längsseiten sind Abdichtleisten 24 angesetzt, die ein Labyrinth bilden. Auch an der dem radialen Mantel 13 der Siebeinrichtung 11 zugewandten Seite ist das Abschirmgehäuse 15 mit bogenförmigen Abdichtleisten 25 versehen, die einen Halbkreis beschreiben. Diese Leisten 25 liegen jedoch an der dem Gehäuse 10 abgewandten Seite. Die Abstände zwischen den Leisten sind etwa doppelt so groß als deren Höhen. Der der festen Welle 16 zugeordnete Kopf des Abschirmgehäuses 15 ist durch das Bezugszeichen 26 gekennzeichnet. Das Abschirmgehäuse 15 kann vielfältig, insbesondere hinsichtlich ihres Querschnitts ausgebildet sein.The shielding housing 15 is shown as a detail in FIGS. 4 to 7. It can be seen from FIGS. 4, 5, 7 in connection with FIG. 3 that it widens conically towards the casing of the screening device. Figure 6 shows that it is semicircular in cross section. According to FIG. 5, the edge assigned to the radial jacket 13 of the screening device 11 is formed in an arc. Sealing strips 24, which form a labyrinth, are attached to the two longitudinal sides facing the housing 10. Also on the side facing the radial jacket 13 of the screening device 11, the shielding housing 15 is provided with curved sealing strips 25 which describe a semicircle. However, these strips 25 are on the side facing away from the housing 10. The distances between the strips are about twice as high as their heights. The head of the shielding housing 15 assigned to the fixed shaft 16 is identified by the reference numeral 26. The shielding housing 15 can be designed in many ways, in particular with regard to its cross section.

Wesentlich sind die die Labyrinthe bildenden Luftleitleisten 24, 25. Bei dem dargestellten Ausführungsbeispiel ist der Korb der Siebeinrichtung 11 rotierend antreibbar. In Abweichung davon ist es selbstverständlich möglich, den Korb der Siebeinrichtung oder eine kreisrunde Siebwand fest anzuordnen und das Gehäuse 10 und die Abschirmhaube 15 rotierend anzutreiben. Ebenso wird daran gedacht, das Gehäuse 10 in Kombination mit der Abschirmhaube 15 in mehrfacher Ausführung auf die Siebflächen einwirken zu lassen.The air guide strips 24, 25 that form the labyrinths are essential. In the exemplary embodiment shown, the basket of the screening device 11 can be driven in rotation. In deviation from this, it is of course possible to arrange the basket of the screening device or a circular screen wall and to drive the housing 10 and the shielding hood 15 in rotation. It is also contemplated to have the housing 10 in combination with the shielding hood 15 act in multiple designs on the screen surfaces.

BezugszeichenübersichtReference symbol overview

  • 1 - Feldhäcksler1 - forage harvester
  • 2 - Guteinzugsorgane2 - Good collection organs
  • 3 - Häckselaggregat3 - Chopper
  • 4 - Konditionierwalzenpaar4 - pair of conditioning rollers
  • 5 - Auswurfkanal5 - chute
  • 6 - Nachbeschleuniger6 - post-accelerator
  • 7 - Achse7-axis
  • 8 - Förderleisten8 - conveyor slats
  • 9 - Leitung9 - line
  • 10 - Gehäuse10 - housing
  • 11 - Siebeinrichtung11 - screening device
  • 12 - Stirnfläche12 - face
  • 12a - Innenfläche12a - inner surface
  • 13 - Mantel13 - coat
  • 14 - Motor14 - engine
  • 15 - Abschirmgehäuse15 - shielding housing
  • 16 - Welle16 - wave
  • 17 - Zahnkranz17 - sprocket
  • 18 - Ritzel18 - pinion
  • 19 - Korbhalter19 - basket holder
  • 20 - Naben20 - hubs
  • 21 - Streben21 - strive
  • 22 - Strebe22 - strut
  • 23 - Halter23 - holder
  • 24 - Abdichtleisten24 - sealing strips
  • 25 - Abdichtleisten25 - sealing strips
  • 26 - Kopf26 - head
  • P - PlatteP - plate

Claims (16)

1. Selbstfahrende Erntemaschine mit einem Antriebsmotor, einem Kühler mit Kühlerventilator und einer letzterem vorgeordneten Siebeinrichtung zum Zurückhalten von in der angesogenen Kühlluft vorhandenen Schmutzpartikeln, wobei der Siebeinrichtung ein eine kleinere Wirksaugfläche als die Lufteinlaßfläche der Siebeinrichtung aufweisendes äußeres Gehäuse zugeordnet ist, das an der der Siebeinrichtung zugewandten Seite zumindest teilweise offen ist und welches über eine äußere Rohrleitung mit der Saugseite eines Gebläses verbunden ist, wobei innerhalb der Siebeinrichtung ein der offenen Seite des Gehäuses gegenüberliegendes Abschirmelement angeordnet ist,
dadurch gekennzeichnet, daß das Abschirmelement als ein inneres Gehäuse (15) ausgebildet ist, dessen der Stirnfläche der Siebeinrichtung (11) zugewandte Fläche offen ist, wobei die Öffnung des Abschirmgehäuses (15) größer ist, als die Öffnung des äußeren Gehäuses (10), das mit einem Gebläse (6) verbunden ist.
1. Self-propelled harvesting machine with a drive motor, a cooler with a cooling fan and a screening device arranged upstream of the latter for retaining dirt particles present in the sucked-in cooling air, the screening device being assigned an outer housing which has a smaller suction surface than the air inlet area of the screening device and which is attached to the screening device facing side is at least partially open and which is connected to the suction side of a blower via an outer pipeline, a shielding element opposite the open side of the housing being arranged within the screening device,
characterized in that the shielding element is designed as an inner housing (15) whose surface facing the end face of the screening device (11) is open, the opening of the shielding housing (15) being larger than the opening of the outer housing (10), which is connected to a blower (6).
2. Selbstfahrende Erntemaschine nach Anspruch 1,
dadurch gekennzeichnet, daß die beiden Gehäuse (10 + 15) gleich hoch und gegeneinander seitenversetzt angeordnet sind.
2. Self-propelled harvesting machine according to claim 1,
characterized in that the two housings (10 + 15) are arranged at the same height and offset from one another laterally.
3. Selbstfahrende Erntemaschine nach den Ansprüchen 1 und/oder 2,
dadurch gekennzeichnet, daß das Abschirmgehäuse (15) im Querschnitt bogenförmig ausgebildet ist.
3. Self-propelled harvesting machine according to claims 1 and / or 2,
characterized in that the shield housing (15) is arcuate in cross section.
4. Selbstfahrende Erntemaschine nach den Ansprüchen 1 bis 3,
dadurch gekennzeichnet, daß das Abschirmgehäuse (15) im Querschnitt halbkreisförmig ausgebildet ist.
4. Self-propelled harvesting machine according to claims 1 to 3,
characterized in that the shield housing (15) is semicircular in cross section.
5. Selbstfahrende Erntemaschine nach einem oder mehrerer der vorhergehenden Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß sich der Querschnitt des Abschirmgehäuses (15) zum radialen Mantel (13) der Siebeinrichtung (11) hin kontinuierlich vergrößert.
5. Self-propelled harvesting machine according to one or more of the preceding claims 1 to 4,
characterized in that the cross section of the shielding housing (15) towards the radial jacket (13) of the screening device (11) increases continuously.
6. Selbstfahrende Erntemaschine nach den Ansprüchen 1 bis 5,
dadurch gekennzeichnet, daß das Abschirmgehäuse (15) die Form eines längs durchgeschnittenen Kegelstumpfes aufweist.
6. Self-propelled harvesting machine according to claims 1 to 5,
characterized in that the shielding housing (15) has the shape of a truncated cone cut lengthways.
7. Selbstfahrende Erntemaschine nach einem oder mehrerer der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß zumindest an den beiden in radialer Richtung sich erstreckenden Längsseiten an der der Stirnseite der Siebeinrichtung zugewandten Seite des inneren Gehäuses Abdichtleisten aufweist.
7. Self-propelled harvesting machine according to one or more of claims 1 to 6,
characterized in that at least on the two longitudinal sides extending in the radial direction has sealing strips on the side of the inner housing facing the front side of the screening device.
8. Selbstfahrende Erntemaschine nach Anspruch 7 bis 7,
dadurch gekennzeichnet, daß die Abdichtleisten labyrinthartig ausgebildet sind.
8. Self-propelled harvesting machine according to claim 7 to 7,
characterized in that the sealing strips are labyrinthine.
9. Selbstfahrende Erntemaschine nach einem oder mehrerer der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß zusätzlich an dem Abschirmgehäuse (15) dem radialen Mantel (13) der Siebeinrichtung (11) zugewandte Abdichtleisten (25) angesetzt sind.
9. Self-propelled harvesting machine according to one or more of claims 1 to 8,
characterized in that sealing strips (25) facing the radial jacket (13) of the screening device (11) are additionally attached to the shielding housing (15).
10. Selbstfahrende Erntemaschine nach den Ansprüchen 1 bis 9,
dadurch gekennzeichnet, daß die Siebeinrichtung (11) Bestandteil einer planen Wand ist, an deren Innenfläche (12a) das Abschirmelement (15) und an deren Stirnfläche (12) das Sauggehäuse (10) um eine gemeinsame Drehachse vorbei streicht.
10. Self-propelled harvesting machine according to claims 1 to 9,
characterized in that the screening device (11) is part of a flat wall, on the inner surface (12a) of which the shielding element (15) and on the end face (12) of the suction housing (10) sweep past a common axis of rotation.
11. Selbstfahrende Erntemaschine nach einem oder mehere Ansprüche 1 bis 10,
dadurch gekennzeichnet, daß auf die Siebflächen der Siebeinrichtung (11) mehr als eine Kombinationseinheit eines Abschirmelementes (15) und eines Sauggehäuses (10) einwirken.
11. Self-propelled harvesting machine according to one or more of claims 1 to 10,
characterized in that more than one combination unit of a shielding element (15) and a suction housing (10) act on the screen surfaces of the screen device (11).
12. Selbstfahrende Erntemaschine nach den Ansprüchen 1 bis 9,
dadurch gekennzeichnet, daß die Siebeinrichtung (11) mit einem eine Verzahnung aufweisenden Zahnkranz (17) ausgerüstet ist, in dessen Verzahnung ein von einem Motor antreibbares Antriebsritzel (18) eingreift.
12. Self-propelled harvesting machine according to claims 1 to 9,
characterized in that the sieve device (11) is equipped with a toothed ring (17) having a toothing, in whose toothing a drive pinion (18) which can be driven by a motor engages.
13. Selbstfahrende Erntemaschinen nach einem oder meherer der Ansprüche 1 bis 12,
dadurch gekennzeichnet, daß die Siebeinrichtung (11) mittels Naben (20) gelagert ist, die auf einer festen Welle (16) drehbar sind.
13. Self-propelled harvesting machines according to one or more of claims 1 to 12,
characterized in that the screening device (11) is mounted by means of hubs (20) which can be rotated on a fixed shaft (16).
14. Selbstfahrende Erntemaschine nach einem oder mehrerer der Ansprüche 1 bis 13,
dadurch gekennzeichnet, daß das Abschirmgehäuse (15) an einem festen Halter (23) festgelegt ist, der drehfest auf die feste Welle (16) aufgesetzt ist.
14. Self-propelled harvesting machine according to one or more of claims 1 to 13,
characterized in that the shield housing (15) is fixed to a fixed holder (23) which is non-rotatably mounted on the fixed shaft (16).
15. Selbstfahrende Erntemaschine nach einem oder mehrerer der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß das äußere Gehäuse (10) mittels einer festen auf die Welle (16) aufgesetzten Strebe (22) gehalten ist.
15. Self-propelled harvesting machine according to one or more of claims 1 to 9,
characterized in that the outer housing (10) is held by means of a fixed strut (22) placed on the shaft (16).
16. Selbstfahrende Erntemaschine nach einem oder mehrerer der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß der Korb der Siebeinrichtung (11) mittels mehrerer Korbhalter (19) gehalten ist, die drehbar auf der Welle (16) gelagert sind.
16. Self-propelled harvesting machine according to one or more of claims 1 to 9,
characterized in that the basket of the screening device (11) is held by means of several basket holders (19) which are rotatably mounted on the shaft (16).
EP95100400A 1994-02-11 1995-01-13 Self propelled harvester Expired - Lifetime EP0667447B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4404401A DE4404401A1 (en) 1994-02-11 1994-02-11 Self-propelled harvester
DE4404401 1994-02-11

Publications (2)

Publication Number Publication Date
EP0667447A1 true EP0667447A1 (en) 1995-08-16
EP0667447B1 EP0667447B1 (en) 1997-07-30

Family

ID=6510059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100400A Expired - Lifetime EP0667447B1 (en) 1994-02-11 1995-01-13 Self propelled harvester

Country Status (3)

Country Link
US (1) US5595537A (en)
EP (1) EP0667447B1 (en)
DE (2) DE4404401A1 (en)

Cited By (5)

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EP1035308A1 (en) * 1999-03-10 2000-09-13 CLAAS Selbstfahrende Erntemaschinen GmbH Self-propelled harvesting machine
EP1733605A2 (en) * 2005-06-18 2006-12-20 Deere & Company Rotating filter screen assembly
DE102008040902A1 (en) 2008-07-31 2010-02-04 Deere & Company, Moline Self-propelled harvester with a sliding into a maintenance position screening device
WO2010110973A1 (en) * 2009-03-26 2010-09-30 Crown Equipment Corporation Working vehicle having cooling system with suction device
EP2546492A1 (en) 2011-07-15 2013-01-16 Deere & Company Screen cleaning system

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DE19742846B4 (en) * 1997-09-29 2006-01-05 Claas Selbstfahrende Erntemaschinen Gmbh Self-propelled forage harvester
US6004382A (en) * 1998-02-20 1999-12-21 Case Corporation Air cleaning system for vehicle cooling system and engine and cab
US6036600A (en) * 1998-06-02 2000-03-14 Kruckman; Harold D. Combine dust eliminator
DE19836696C2 (en) 1998-08-13 2000-06-08 Case Harvesting Sys Gmbh Cleaning device for a rotating cooling air filter
DE19901651C1 (en) * 1999-01-18 2000-05-18 Case Harvesting Sys Gmbh Cleaner for removing chaff and dust adhering to face and surround cover surfaces of a rotary air-filter panel
GB2356178A (en) * 1999-11-12 2001-05-16 Ford New Holland Nv Pivotable protective screen for an agricultural vehicle cooling system
DE50311091D1 (en) * 2003-07-01 2009-03-05 Claas Selbstfahr Erntemasch Cooling air-cleaning device
US7175520B2 (en) * 2003-07-15 2007-02-13 Cnh America Llc Cab arrangement for harvesting combine
US7008315B2 (en) * 2004-04-26 2006-03-07 Redekop Chaff Systems Ltd. Venting of a combine harvester
EP1869968B1 (en) * 2006-06-22 2009-11-18 Maasland N.V. Crop-processing device comprising a pick-up/cutting device
US8038518B2 (en) * 2008-04-24 2011-10-18 Deere & Company Fluid cooler located in an air stream of a work assembly of an agricultural combine
GB0812966D0 (en) * 2008-07-16 2008-08-20 Cnh Belgium Nv Cleaning of an air filter screen of an agricultural vehicle
DE102010002730B4 (en) * 2010-03-10 2015-12-24 Deere & Company Harvesting machine with a transport device for the installation and removal of a Erntegutbearbeitungseinrichtung
US7875093B1 (en) * 2010-05-07 2011-01-25 Deere & Company Air filter arrangement for an agricultural combine having with stationary and rotary filters
US8062109B1 (en) * 2010-08-27 2011-11-22 Deere & Company Dust suppressor for combine harvester feederhouse
US9579968B2 (en) 2012-11-30 2017-02-28 Cnh Industrial America Llc One-way vented screen assembly for a work vehicle
BE1022412B1 (en) 2014-12-12 2016-03-24 Cnh Industrial Belgium Nv TRANSVERSAL FOCUSED COOLING MODULE FOR A HARVESTING MACHINE
US9763388B2 (en) * 2015-09-15 2017-09-19 Cnh Industrial America Llc Agricultural harvester having a header based heat exchanger
US11376946B2 (en) * 2020-02-24 2022-07-05 Deere & Company Magnetic couplers for shaft assembly

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Cited By (11)

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Publication number Priority date Publication date Assignee Title
EP1035308A1 (en) * 1999-03-10 2000-09-13 CLAAS Selbstfahrende Erntemaschinen GmbH Self-propelled harvesting machine
EP1733605A2 (en) * 2005-06-18 2006-12-20 Deere & Company Rotating filter screen assembly
EP1733605A3 (en) * 2005-06-18 2009-10-28 Deere & Company Rotating filter screen assembly
DE102008040902A1 (en) 2008-07-31 2010-02-04 Deere & Company, Moline Self-propelled harvester with a sliding into a maintenance position screening device
US8573342B2 (en) 2008-07-31 2013-11-05 Deere & Company Harvesting machine and screen arrangement
DE102008040902B4 (en) * 2008-07-31 2017-05-11 Deere & Company Self-propelled harvester with a sliding into a maintenance position screening device
WO2010110973A1 (en) * 2009-03-26 2010-09-30 Crown Equipment Corporation Working vehicle having cooling system with suction device
US8454718B2 (en) 2009-03-26 2013-06-04 Crown Equipment Corporation Working vehicle having cooling system with suction device
US8528677B2 (en) 2009-03-26 2013-09-10 Crown Equipment Corporation Working vehicle having cooling system
AU2010229239B2 (en) * 2009-03-26 2014-10-09 Crown Equipment Corporation Working vehicle having cooling system with suction device
EP2546492A1 (en) 2011-07-15 2013-01-16 Deere & Company Screen cleaning system

Also Published As

Publication number Publication date
DE4404401A1 (en) 1995-08-17
US5595537A (en) 1997-01-21
EP0667447B1 (en) 1997-07-30
DE59500422D1 (en) 1997-09-04

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