• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A chopper (10) with a chopper (22), an elbow (26) and a crop transport system comprising an ejector accelerator (24) and an air fan (56) with pallets carrier (58) mounted on a shaft (50) of a conveyor (48), wherein the air blower (56) is adapted to feed the crop with a directed airflow flowing through the direction of flow of the crop stream. A partition wall (60) is provided between the conveyor (48) and the air blower (56) and the air transport pallets (58) are surrounded in the circumferential direction by a wall (66) which at a opening (70) through which the crop can be fed with the directed airflow.
    公开号:BE1019944A5
    申请号:E201000175
    申请日:2010-03-22
    公开日:2013-03-05
    发明作者:Matthias Baeurich；Manfred Engel
    申请人:Deere & Co；
    IPC主号:
    专利说明:

    DESCRIPTION
    The invention relates to a forage harvester with a harvesting device for a forage harvester with an ejection accelerator and an air fan for the provision of an air flow. chopping, an ejection bend and a harvest transport system disposed between the chopper and the ejector elbow, the crop transport system comprising: an ejection accelerator with a conveyor for transporting the crop and a housing accommodating the conveyor, which has an inlet for the chopped crop and an outlet for harvesting, and an air fan for providing a flow of air, with which the crop flow of the conveyor can be fed , where the air blower comprises air transport pallets which are mounted on a conveyor shaft.
    State of the art
    The forage harvesters are used to harvest plants that are collected or cut from a field, fed to a chopper and shredded by it, and finally loaded onto a transport vehicle. For this task, a motorized ejection accelerator is provided downstream of the chopper and transports the chopped crop upward into an ejection tower. At the upper end of the ejection tower, an ejection bend is mounted on a pivoting ring which can rotate about the vertical axis and generally rotate about a horizontal axis, so that the height can be varied. the ejection end, to which is usually attached a steerable ejection valve. For maize harvesting, a grain treatment device is mounted between the chopper and the ejection accelerator, which has at least two motorized rotating cylinders between which the crop is transported to chop the grains which are harvested. find it for a better digestibility.
    The crop flow provided by the ejection accelerator also contains a certain amount of air, which contributes to the transport of the crop. According to the state of the art, this quantity of air is sucked to the front face of the chopping device through the transport channel, through which the crop is further transported by the attachment before harvesting to the device. hash. Because of the relatively small dimensions of the transport channel and the grain treatment device, the air supply is in many cases insufficient, which leads to an unsatisfactory transport action of the accelerator-dejection. .
    In order to bring additional air and thereby improve the transport action of the chopper drum, it has been proposed for a forage harvester not equipped with an ejection accelerator to dispose laterally to the drum. hashing air transport elements that suck air from a lateral direction and accelerate it into the ejection tower (DD 216 608 A1). Document EP 0 510 470 A1 proposes to equip the casing of the ejection accelerator with lateral openings through which the fan pallets aspire and accelerate external air. EP 1 27 5 291 A1 considered as the same type describes a conveyor disposed downstream of the chopper drum with a closed rotary drum, on the envelope of which are mounted the transport pallets for the transport of the crop. At the end walls of the drum are air conveying elements which suck the air through side openings which are provided in ventilation ducts extending vertically downwards. For all the evoked air transport elements, it is considered disadvantageous that, although additional air is sucked in and transmitted, the transmission of air is however in all possible directions, so that only a part additional airflow effectively contributes to the transport of the crop into the ejection tower and through the ejection elbow and that the crop flow entering the ejection accelerator is retarded by another part of the ejection flow. extra air.
    FR 1 407 970 A and DE 815 718 C describe choppers with separate fans which inject air flows into an ejection bend downstream of the chopper.
    FR 2 570 923 A1 and DE 955 370 C describe choppers without an additional ejection accelerator. Additional fans are mounted on a chopper shaft.
    Purpose of the invention
    The object of the invention is to provide a harvest transport system for a forage harvester with an ejection accelerator and means for providing a flow of air to assist the extraction of the harvest which is distinguished by an improved transport action.
    Solution
    This object is achieved according to the invention by the teaching of claim 1, the dependent claims having features which improve the solution advantageously. A forage harvester includes an ejection accelerator which has a conveyor for transporting the crop and a housing accommodating the conveyor. The crankcase has an entrance for harvesting and an outlet for harvesting. In addition, an air blower is provided which feeds the crop conveyed by the conveyor with a directed airflow flowing in the direction of flow of the crop.
    This airflow specifically assists the transport action of the ejection accelerator, as it is directed in the direction of flow of the crop.
    The feeding of the crop with the flow of air is from the point of view of the flow direction downstream of the conveyor (ie behind the conveyor). It is also possible to feed the crop inside the conveyor housing, that is to say that the conveyor itself and the crop therein are fed with the air flow.
    The air blower is spatially separated from the conveyor itself and may be disposed within the conveyor housing or outside the conveyor housing.
    The air transport vanes of the air blower are disposed on the conveyor shaft. They can transmit the airflow directly into the conveyor housing through an opening in a circumferentially surrounding wall where it is guided via a separate air channel into the conveyor housing or an ejection tower disposed downstream of the conveyor.
    Exemplary embodiment With the aid of the figures, three embodiments of the invention are explained. The drawings show:
    Figure 1 is a schematic side view of a self-propelled harvesting machine in the form of a forage harvester, Figure 2 is a vertical view of a first embodiment of a transport system for the forage harvester. FIG. 3 is a partial sectional side view of the transportation system of FIG. 2; FIG. 4 is a vertical view of a second embodiment of a transport system for the forage harvester of FIG. FIG. 1, FIG. 5, a partial sectional side view of the transport system of FIG. 4, and FIG. 6, a perspective view of a third embodiment of a transport system and the tower of FIG. subsequent ejection for the forage harvester of Figure 1.
    In Figure 1 is shown a self-propelled chopper 10 in schematic side view. The forage harvester 10 stands on a frame 12, which is supported by front-wheel drive wheels 14 and rear guide wheels 16. The control of the forage harvester 10 is from a driver's cab 18, from which one can see a pre-harvest attachment 20 in the form of a collector, which could also be replaced by a pre-harvesting attachment for maize harvesting. The forage harvested from the soil with the aid of the pre-harvesting attachment 20, for example grass or the like, is conveyed via an input conveyor 22 with pre-pressing rolls 30, 32, 34, 36, which are disposed within an inlet housing 50 at the front of the forage harvester 10, at a chopper 22 in the form of a chopper drum located below the driver's cab. , which shreds it into small pieces and transmits it to an ejection accelerator 24. The crop leaves the forage harvester 10 to a transport vehicle rolling next to it via an ejection bend 26 - shown in a position of rest in Figure 1 -, which is based on a pivoting ring 38 so as to allow rotation about an almost vertical axis and is adjustable in inclination. Between the chopper 22 and the ejection accelerator 24 is a channel 68, into which a grain processing device 28 can be inserted with two opposing grain processing cylinders to chop the grains. when harvesting corn. During grass harvesting, the grain treatment device 28 is brought into an inactive position, as illustrated, or disassembled. Between the ejection accelerator 24 and the pivoting ring 38 is an ejection tower 40. In the following, the direction indications, such as laterally, at the bottom and at the top, relate to the forward direction V of the harvesting machine 10, which extends to the right in FIG.
    Reference is now made to Figures 2 and 3, wherein a first embodiment of a transport system with an ejection accelerator 24 is shown in a front view and in a side view.
    a side view. The ejection accelerator 24 comprises a housing 42 with an inlet for the harvest 44 and an outlet for the harvest 46. Inside the housing 42 is a conveyor 48 with a rotatably driven central shaft 50, on which are mounted one or more support disks 52, which in turn support fixed pallets 54 for transporting the crop, which can also be hung in a pendular manner. At each of the two outer sides of the conveyor 48 there is respectively provided an air blower 56. The air blowers 56 each comprise a number of air-carrying vanes 58, which are rigidly connected to the shaft 50. Between the fans 56 and the conveyor 48 are arranged separation walls 60, which are connected to the shaft 50 and also support the air transport pallets 58. The partition walls 60 do not have openings through which the air of the air fan 56 could pass to the conveyor 48. Such openings could however be provided. The air fans 56 are covered axially by outer walls 62 with central air suction openings 64. The outer walls 62 simultaneously form an outer cover of the housing 42. The air fans 56 are covered in their direction. peripheral wall 66 whose radial dimensions are slightly larger than those of the conveyor 48. The wall 66 comprises an opening 70 respectively only in the neighboring area of the output for harvesting 46. The upper portion of the housing 42 evolves towards the low to form the outer walls 62 (preferably in a portion) or is connected thereto in any manner. Upwardly, the upper portion of the housing 42 is connected to the ejection tower 40, both narrowing in the crop flow direction indicated by arrows. The channel 68 from the chopper 22 or grain processing rollers 28, which also narrows in the crop flow direction, splices flat to the partition walls 48. It will be further noted that the walls 60, unlike what is described and shown graphically, could be rigidly connected to the housing 42. Additional support discs 52 should then be provided to support the air transport pallets 58 near the partition walls 60.
    The operating mode of the crop transport system according to the invention shown in Figures 2 and 3 is such that, in operation, the shredded crop by the chopper 22 is transported through the channel 68 and the inlet for the harvest 44 to the conveyor 48, as indicated by the dark arrows. It is then taken up by the pallets 54 of the conveyor 48, accelerated and transmitted through the outlet for the harvest 46 into the ejection tower 40, as indicated by the dark arrows, from where it reaches the ejection elbow 26. The air fans 56 acting as radial fans suck through the air suction openings 64 the ambient air, which can penetrate from above and / or laterally through appropriate openings (not shown) in the covers. The aspirated air is accelerated through the air transport pallets 58 and directed only through the openings 70, which are laterally disposed in the lower area of the outlet for harvesting 46, on the crop flow downstream of the conveyor 48, as indicated by the clear arrows. The air flows made available by the air fans 56 are therefore oriented in the direction of the crop flow and assist in a targeted manner.
    The second embodiment of a transport system, shown in FIGS. 4 and 5, for which the elements corresponding to the first embodiment are identified with the same reference numerals, corresponds essentially to the first embodiment by its structure. and how it works. As an essential difference, the walls 66 will be pointed out and the air conveyor pallets 58 have smaller radial dimensions than the conveyor 48. The channel 68 ends here on the same plane as the outer walls 62, however, could - as in Figures 2 and 3 - also connect to the partition walls 42, the partition wall 60 can then also be fixed. For the second embodiment also, a flow of air directed in the flow direction of the crop is transmitted downstream, but already in the outer peripheral direction of the conveyor 48.
    The third embodiment of the transport system shown in FIG. 6, for which the elements corresponding to the first embodiment are identified with the same reference numerals, comprises a spatial separation between the ejection accelerator 24 and the fans. To the effect, the partition walls 60 are formed as bearing elements of the housing 42, which laterally close the conveyor 48. The air fans 56 are located outside the partition walls 60 and surround pallets of air transport 58 driven by the shaft 50, which are covered in the circumferential direction by walls 66 and in the axial direction by outer walls 62, which surround central air intake openings 64. The walls 66 present only in the upper zone an opening 70, to which is connected an air duct 74 in the form of a box, which extends to the zo the bottom of a side wall 76 of the ejection tower 40 and opens on an opening 70 therein. Air fans 56, which also function as radial fans, then transmit the air sucked into the air ducts 74, which feed the crop flow into the lower zone of the ejection tower 40 with a flow of air. flowing upwardly towards the crop flow and thereby improve the transport process through the ejection tower 40 and the ejection bend 26. It will be noted that the apertures facing upwards and downwards in the housing 42 and in the walls 62, 66 are shown for purposes of illustration only and are closed in reality.
    If, in certain harvesting situations, the ejection range achieved or the speed of the harvest should be too great, for example when the forage harvester 10 pulls a transport cart directly behind it, it may be relevant to reduce the airflow, which can be done by means of appropriate masking screens (not shown), which can be slid or pivoted manually or by externally actuated actuators in front of the suction openings of air.
    权利要求:
    Claims (7)
    [1]
    1. Chopper (10) with a chopper (22), an ejection bend (26) and a crop transport system disposed between the chopper (22) and the ejection bend (26) , the crop transport system comprising: an ejection accelerator (24) with a conveyor (48) for transporting the crop and a housing (42) housing the conveyor (48), which has an inlet (44) for the chopped crop and an outlet (46) for harvesting, and an air blower (56) for supplying an air flow, with which the crop flow of the conveyor (48) can be fed, where the air blower (56) comprises air transport pallets (58) which are mounted on a shaft. (50) of the conveyor (48), characterized in that the air blower (56) is adapted to feed the crop with a directed flow of air flowing in the flow direction of the crop stream, in that a partition wall (60) is provided between the conveyor (48) and the air blower (56), and that air transport vanes (58) of the air blower (56) are surrounded in the air peripheral direction by a wall (66) which has an opening (70), through which the crop can be fed with the directed airflow.
    [2]
    A forage harvester (10) according to claim 1, characterized in that the crop feed with the air flow is from the point of view of the flow direction downstream of the conveyor (48) or inside the housing (42) of the ejection accelerator (24).
    [3]
    3. chopper (10) according to claim 1 or 2, characterized in that the opening (70) is directly adjacent to the conveyor (48).
    [4]
    4. chopper (10) according to one of claims 1 to 3, characterized in that the housing (42) of the conveyor (48) moves towards an outer wall (62) or is connected to it, which covers the fan to air (56) in the axial direction.
    [5]
    5. chopper (10) according to one of claims 1 to 4, characterized in that the radial dimensions of the wall (66) approximately correspond to the radial dimensions of the conveyor (48) of the ejection accelerator (24). ) or are smaller or larger than these.
    [6]
    6. chopper (10) according to one of claims 1 to 5, characterized in that the air fan (56) is connected to the air outlet side by an air duct (74) at the opening ( 70) in the housing (42) of the ejection accelerator (24) and / or an ejection tower (40) disposed downstream of itself.
    [7]
    A chopper (10) according to one of the preceding claims, characterized in that an air fan (56) is present on each side of the ejection accelerator (24).
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE815718C|1950-06-17|1951-10-04|W Speiser Fa|Haeckselmaschine with additional fan|
    DE955370C|1955-05-18|1957-01-03|Martin Messner|Haecksler with snail-shaped knives|
    FR1407970A|1964-09-15|1965-08-06|Fortschritt Veb K|Machine for chopping agricultural products or the like|
    FR2570923A1|1984-09-29|1986-04-04|Claas Saulgau Gmbh|Fodder chopper with blower|
    EP1275291A1|2001-07-12|2003-01-15|Maschinenfabrik Bernard Krone GmbH|Forage harvester|
    DE3234657C2|1982-09-18|1990-05-17|Claas Ohg, 4834 Harsewinkel, De|
    DD216608A1|1983-07-11|1984-12-19|Fortschritt Veb K|cutterhead|
    SU1641216A1|1988-06-08|1991-04-15|Головное специализированное конструкторское бюро по комплексам зерноуборочных машин Государственного производственного объединения "Ростсельмаш"|Fodder harvester silo line|
    DE4113052A1|1991-04-22|1992-10-29|Deere & Co|CONVEYOR DEVICE|DE102009002102A1|2009-04-01|2010-10-07|Deere & Company, Moline|System for adding ensilage agent into flow of harvested goods for field chopper, has tank connected with injection nozzle, which introduces agent into harvested goods, where nozzle introduces agent into air flow|
    DE102013110741A1|2013-09-27|2015-04-02|Claas Selbstfahrende Erntemaschinen Gmbh|Forage harvester with a Nachbeschleunigungseinrichtung|
    DE102014008068B4|2014-05-27|2016-03-24|Maschinenfabrik Bernard Krone Gmbh|Self-propelled forage harvester|
    DE102016215045A1|2016-08-12|2018-02-15|Deere & Company|Transition housing for a forage harvester|
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    RU2725476C1|2019-06-24|2020-07-02|Общество с ограниченной ответственностью "Комбайновый завод "Ростсельмаш"|Transport channel of forage harvester process mass movement with air accelerating device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE200910002092|DE102009002092A1|2009-04-01|2009-04-01|Harvested crop haulage system for self-propelled field chopper, has air blower that impacts harvested crop with directional air flow that flows in direction of conveyance of harvested crop|
    DE102009002092|2009-04-01|
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